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| 1 | The Cretaceous Songliao Basin:Volcanogenic Succession,Sedimentary Sequence and Tectonic Evolution,NE China显示文摘Songliao 盆(SB ) 是有盆的二种不同类型的迭加的盆充满。更低的被一座围住差错的火山描绘包括的遗传因子的继任设置暴烈,碎屑状的焦性没食子酸和 epiclastic 岩石。暴烈的岩石,从 110 妈标明日期到 130 妈,具有 geochemically 活跃的大陆人边缘类型。快,向北方, SB 块的移植发生在从他们的 paleomagnetic 信息推断的火山作用的主要事件期间。上面盆之一充满被非海洋的下垂风格统治 siliciclastics 和次要的碳酸盐的沉积顺序。盆中心向西变了从对在盆进化建议动态变化的 GGT 地震速度结构揭示的迟了的白垩纪早。因此,一个迭加的盆模型被建议。SB 的进化包含包括的三个时期(1 ) Alptian 和 pre-Aptian:制动火箭弧盆和安第斯山脉的范围系统与蒙古鄂霍次克海 collisional 带(MOCB ) 有关打字;(2 ) Albian 到 Companian:在与沿着欧亚的板的东方边缘的和平的板的倾斜的 subduction 有关的 transtension 下面的象下垂一样罢工滑倒盆;(3 ) 自从 Maastrichtian:在与在欧亚的板下面的和平的板的正常 subduction 有关的压缩下面的构造的反的盆,由掩冲断层描绘了,向西 depocenter 的移植并且盆边缘的东方高举。 | WANG Pujun XIE Xiao'an Mattem FRANK REN Yanguang ZHU Defeng SUN Xiaomeng | 2007 | Acta Geologica Sinica(English Edition)2007，81，6： | 38 |
| 2 | Discovery and Significance of High CH_4 Primary Fluid Inclusions in Reservoir Volcanic Rocks of the Songliao Basin,NE China显示文摘Comparing compositions of the fluid inclusions in volcanic rocks to the contents and isotopes of the gases in corresponding volcanic reservoirs using microthermometry, Raman microspectroscopy and mass spectrum analysis, we found that: (1) up to 82 mole% methane exists in the primary inclusions hosted in the reservoir volcanic rocks; (2) high CH4 inclusions recognized in the volcanic rocks correspond to CH4-bearing CO2 reservoirs that are rich in helium and with a high 3He/4He ratio and which show reversed order of δ 13C in alkane; (3) in gas reservoirs of such abiotic methane (>80%) and a mix of CH4 and CO2, the enclosed content of CH4 in the volcanic inclusions is usually below 42 mole%, and the reversed order of δ 13C in alkane is sometimes irregular in the corresponding gas pools; (4) a glassy inclusion with a homogeneous temperature over 900°C also contains a small portion of CH4 although predominantly CO2. This affinity between gas pool and content of inclusion in the same volcanic reservoirs demonstrates that magma-originated gases, both CH4 and CO2, have contributed significantly to the corresponding gas pools and that the assumed hydrocarbon budget of the bulk earth might be much larger than conventionally supposed. | WANG Pujun HOU Qijun WANG Keyong CHEN Shumin CHENG Rihui LIU Wanzhu LI Quanlin | 2007 | Acta Geologica Sinica(English Edition)2007，81，1： | 14 |
| 3 | Type I IFN augments IL-27-dependent TRIM25 expression to inhibit HBV replication显示文摘Hepatitis B virus(HBV)can cause chronic hepatitis B,which may lead to cirrhosis and liver cancer.Type I interferon(IFN)is an approved drug for the treatment of chronic hepatitis B.However,the fundamental mechanisms of antiviral action by type I IFN and the downstream signaling pathway are unclear.TRIM25 is an IFN-stimulated gene(ISG)that has an important role in RIG-I ubiquitination and activation.Whether TRIM25 is induced in liver cells by type I IFN to mediate anti-HBV function remains unclear.Here we report that interleukin-27(IL-27)has a critical role in IFN-induced TRIM25 upregulation.TRIM25 induction requires both STAT1 and STAT3.In TRIM25 knockout HepG2 cells,type I IFN production was consistently attenuated and HBV replication was increased,whereas overexpression of TRIM25 in HepG2 cells resulted in elevated IFN production and reduced HBV replication.More interestingly,we found that TRIM25 expression was downregulated in HBV patients and the addition of serum samples from HBV patients could inhibit TRIM25 expression in HepG2 cells,suggesting that HBV might have involved a mechanism to inhibit antiviral ISG expression and induce IFN resistance.Collectively,our results demonstrate that type I IFN-induced TRIM25 is an important factor in inhibiting HBV replication,and the IFN-IL-27-TRIM25 axis may represent a new target for treating HBV infection. | Guangyun Tan Qingfei Xiao Hongxiao Song Feng Ma Fengchao Xu Di Peng Na Li Xiaosong Wang Junqi Niu Pujun Gao F Xiao-Feng Qin Genhong Cheng | 2018 | Cellular & Molecular Immunology2018，15，3： | 13 |
| 4 | Discovery of Triassic volcanic-sedimentary strata in the basement of Songliao Basin显示文摘In the Songliao Basin, the existence of lower Mesozoic strata remains a debatable issue. Previous studies indicated the absence of Triassic to Lower and Middle Jurassic strata in northeastern China because of uplift and erosion events associated with the return of geo-synclinal folds and orogenic movement during the Late Permian-Early Jurassic. To date, geochronological studies of intrusive and metamorphic rocks in the basement of the Songliao Basin have also confirmed Carboniferous, Permian, and Late Jurassic ages for the basement formations in general [1-4]. In the International Continental Scientific Drilling Project (ICDP) in the Songliao Basin, radiometric dating has been carried out for the entire drilling core of the SK-2 east borehole. As a result, we have discovered Triassic volcanic-sedimentary strata in the basement of the Songliao Basin. | Yongkang Yin Youfeng Gao Pujun Wang Xuejiao Qu Haibo Liu | 2019 | Science Bulletin2019，64，10： | 11 |
| 5 | Distribution and characteristics of volcanic reservoirs in China显示文摘About forty productive oil/gas fields hosted in volcanic reservoirs have been found since 1957 in fourteen basins of China.They can be simply subdivided into two groups,the east and the west.Reservoir volcanic rocks of the east group are predominantly composed of Late Jurassic to Early Cretaceous rhyolite and Tertiary basalt,preferred being considered as rift type volcanics developed in the circum-Pacific tectonic regime.Those of the west are Permo-Carboniferous intermediate/basic volcanic rocks,being island-arc type ones developed in paleo-Asian Ocean tectonic regime. | HUANG Yulong WANG Pujun CHEN Shuming | 2009 | Global Geology2009，12，2： | 10 |
| 6 | Progress on Continental Scientific Drilling Project of Cretaceous Songliao Basin(SK-1 and SK-2)显示文摘Scientific drilling is a significant exploration tool to better understand earth’s environmental and biological evolution,physical composition and structure,and natural resources and geohazards,through directly sampling on subsurface rock,fluid,living organisms and long-term monitoring of on-going deep processes.It plays a critical role in deciphering earth system dynamics and in solving socio-economic problems currently facing by humans. | Yuan Gao Chengshan Wang Pujun Wang Youfeng Gao Yongjian Huang Changchun Zou | 2019 | Science Bulletin2019，64，2： | 7 |
| 7 | Sedimentary Characteristics of the Cretaceous in the Songliao Basin显示文摘The rupture of the lithosphere in Late Jurassic brought about the eruption of basaltic magma in the Songliao Basin. The evolution of the basin in Cretaceous progressed through six stages: pre-rift doming, extensional fracturing, fault subsidence, fault downwarping, downwarping and shringkage, resulting in the deposition of terrstrial facies nearly 10,000 m thick. There are different depositional sequences in these stages: the depositional period of the Early Cretaceous Shahezi and Yincheng Formations is the development stage of the down-faulted basin, forming a volcanic rock-alluvial fan-fan delta-lacustrine (intercalated with episodic turbidites)-swamp facies sequences; the period of the Early Cretaceous Dengluku Formation is the transformation stage of fault subsidence into fault downwarping of the basin, forming a sequence mainly of alluvial plain-lacustrine facies; the depositional period of the Early Cretaceous Quantou Formation-Late Cretaceous Nenjiang Formation is the downwarping stage of the basin, forming an alluvial plain-delta-lacustrine facies sequence; the period of the Late Cretaceous Sifangtai Formation-Mingshui Formation is the shringkage stage of the basin, forming again a sequence mainly of alluvial plain-alluvial fan and small relict lacustrine facies. These vertical depositional sequences fully display the sedimentary characteristics of a failed continental rift basin. Many facts indicate that the two large-scale lake invasions, synchronous with the global rise of sea level, which took place in the downwarping stage of the basin development, led to the connection between the lake and sea. | Liu Zhaojun, Wang Dongpo, Liu Li, Liu Wanzhu, Wang Pujun, Du Xiaodi and Yang Guang Changchun University of Earth Sciences, Changchun, Jilin Sun Sheping | 1993 | Acta Geologica Sinica(English Edition)1993，67，2： | 7 |
| 8 | Au core-PtAu alloy shell nanowires for formic acid electrolysis显示文摘Inefficient electrocatalysts and high-power consumption are two thorny problems for electrochemical hydrogen(H2)production from acidic water electrolysis.Herein we report the one-pot precise synthesis of ultrafine Au core-Pt Au alloy shell nanowires(Au@PtxAu UFNWs).Among them,Au@Pt_(0.077) Au UFNWs exhibit the best performance for formic acid oxidation reaction(FAOR)and hydrogen evolution reaction(HER),which only require applied potentials of 0.29 V and-22.6 m V to achieve a current density of 10 m A cm^(-2),respectively.The corresponding formic acid electrolyzer realizes the electrochemical H2 production at a voltage of only 0.51 V with 10 m A cm^(-2) current density.Density functional theory(DFT)calculations reveal that the Au-riched Pt Au alloy structure can facilitates the direct oxidation pathway of FAOR and consequently elevates the FAOR activity of Au@Pt_(0.077) Au UFNWs.This work provides meaningful insights into the electrochemical H_(2) production from both the construction of advanced bifunctional electrocatalysts and the replacement of OER. | Qi Xue Xin-Yu Bai Yue Zhao Ya-Nan Li Tian-Jiao Wang Hui-Ying Sun Fu-Min Li Pei Chen Pujun Jin Shi-Bin Yin Yu Chen | 2022 | Journal of Energy Chemistry2022，31，2： | 5 |
| 9 | High resolution continuous sedimentary records of Upper Cretaceous obtained from the continental drilling(SK-1) borehole in Songliao Basin:Sifangtai and Mingshui Formations显示文摘The Sifangtai and Mingshui formations were continuously cored in the SK-1 n borehole(China Cretaceous Continental Scientific Drilling-SongKe1-the north borehole).The core is 767.96 m long,and the recovery is 94.7%.The ages of the formations range from middle Campanian to Danian.The sequence and process of lithology-lithofacies and cyclic stratigraphy were described in detail.Eight litho-types compose the Sifangtai Formation,and 15 litho-types compose the Mingshui Formation.Deposition was predominantly in meandering river and lacustrine environments,including 10 microfacies in the Sifangtai Formation and 15 microfacies in the Mingshui Formation.The complete sequence is composed of 535 m-scale cycles(sixth-order cycle),152 fifth-order cycles,42 fourth-order cycles and five third-order cycles.The centimeter-scale description of the section revealed some previously unknown horizons such as a special type of mudstone,marl,volcanic ash and favorable sand reservoirs in the formations.The new-found evidence is very important for the interpretation of the evolution of the basin,conditions such as lake oxic events,the K/Pg boundary,tectonism in the late sag basin stage,and the reservoir-cap rock assemblages in the shallow stratigraphy. | Guodong Wang Rihui Cheng Pujun Wang Youfeng Gao Chengshan Wang Yanguang Ren Qinghua Huang | 2015 | Geoscience Frontiers2015，6，6： | 5 |
| 10 | Microfacies of Deep-water Deposits and Forming Models of the Chinese Continental Scientific Drilling-SKII显示文摘湖水的广泛的违反在 Songliao 盆发生在白垩纪 Qingshankou 阶段和 Nengjiang 阶段期间,形成普遍深海的存款。深海的存款的微外形的十一种类型从 SKII 在连续核心岩石中被认出了,包括静止的水,泥灰岩, dolostone ,油页岩,暴烈的灰, turbidite ,商业萧条沉积, tempestite , seismite , ostracoda 石灰石和晶石的碳酸盐的泥石头,它被划分成二种类型:由于逐渐地改变环境产生的微外形(Ⅰ) 和微外形由于地质的事件产生了(Ⅱ) 。打字我由象泥灰岩,白云石石头和油那样的一些特殊好谷物沉积组成页岩以及泥石头和类型 II 由与地质的事件有关的一些沉积组成,例如暴烈的灰, turbiditie,商业萧条沉积, tempestite, seismite, ostracoda 石灰石。晶石的碳酸盐的形成可以被与环境和事件有关的因素控制。通常,静止的水的泥石头沉积能被认为是背景沉积,并且剩余的沉积都是事件沉积,它有独特形成的模型,它可以思考控制 climatics 和 tectonics 的效果。 | CHENG Rihui WANG Guodong WANG Pujun GAO Youfeng | 2007 | Acta Geologica Sinica(English Edition)2007，81，6： | 4 |
| 11 | Chronostratigraphy and Stratigraphic Classification of the Cretaceous of the Songliao Basin显示文摘Isotopic ages of synsedimentary clay minerals were directly determined with the ultrasonicscattering-settlement separation-K-Ar dilution technique. The apparent age of black mudstoneis 123 Ma for the Quantou Formation, 111.9-89.0 Ma for the Qingshankou Formation and77.6-76.8 Ma for the upper part of the Nenjiang Formation. The Rb-Sr isochrone age of themuddy limestone-mudstone sequence of the lower part of the Nenjiang Formation is 81 Ma andthat of the muddy evaporite of the middle part of the Quantou Formation is 122.2 Ma. On thebasis of the above isotopic ages, the authors propose a modified scheme of stratigraphic classifi-cation of the Cretaceous of the Songliao basin. | Wang Pujun Du Xiaodi Wang Jun and Wang Dongpo 1)Geoenergy Department, Changchun University of Earth Sciences, Changchun, Jilin 2)Earth Sciences Department,Nanjing University,Nanjing,Jiangsu | 1996 | Acta Geologica Sinica(English Edition)1996，70，2： | 4 |
| 12 | Filling Pattern of Volcanostratigraphy of Cenozoic Volcanic Rocks in the Changbaishan Area and Possible Future Eruptions显示文摘The Cenozoic volcanostratigraphy in the Changbaishan area had complex building processes.Twenty-two eruption periods have been determined from the Wangtian'e, Touxi, and Changbaishan volcanoes. The complex volcanostratigraphy of the Changbaishan area can be divided into four types of filling patterns from bottom to top. They are lava flows filling in valleys(LFFV), lava flows filling in platform(LFFP), lava flows formed the cone(LFFC), and pyroclastic Flow filling in crater or valleys(PFFC/V). LFFV has been divided into four layers and terminates as a lateral overlap. The topography of LFFV, which is controlled by the landform, is lens shaped with a wide flat top and narrow bottom.LFFP has been divided into three layers and terminates as a lateral downlap. The topography of LFFP is sheet and tabular shaped with a narrow top and wide bottom. It has large width to thickness ratio. It was built by multiple eruptive centers distributed along the fissure. The topography of LFFC, which is located above the LFFP, has a hummocky shape with a narrow sloping top and a wide flat bottom. It terminates as a later downlap or backstepping. It has large width to thickness ratio. It was built by a single eruptive center. The topography of PFFC/V, which located above the LFFC, LFFP, or valley, has the shape of fan and terminates as a lateral downlap or overlap. It has a small width to thickness ratio and was built by a single eruptive center. The filling pattern is controlled by temperature, SiO_2 content,volatile content, magma volume, and the paleolandform. In the short term, the eruptive production of the Changbaishan area is comenditic ash or pumice of a Plinian type eruption. The eruptive volume in future should be smaller than that of the Baguamiao period, and the filling pattern should be PFFC/V,which may cause huge damage to adjacent areas. | TANG Huafeng KONG Tan WU Chengzhi WANG Pujun PENG Xu GAO Youfeng | 2017 | Acta Geologica Sinica(English Edition)2017，91，5： | 4 |
| 13 | The Sequence Architecture of Volcanic Basin Fillings-An Example From Xujiaweizi Faulted Depression In Songliao Basin显示文摘The basin filling geometric pattern of volcanic eruptive rocks depends on both of the eruptive locations in a basin and structural styles of fault terraces. It is divided into three types by eruptive locations and occurrences of eruptive rocks, including the pattern of eruption along fault and occurrence (PEAFO), the pattern of eruption on footwall of a fault and occurrence (PEOFO) and the pattern of eruption on hangingwall of fault and occurrence (PEOHO) in Xujiaweizi fault depression of Songliao basin, Northeast of China. Those basin filling patterns of volcanic eruptive rocks are of specific geometric characteristics controlling or affecting sedimentation, geometry of sedimentary body and sequence architecture during a sequence evolution. The study shows that the volcanic rocks developed at different stages of lowstand, transgressive and highstand can give different controls or affects on the sequence architecture. | CHENG Rihui, LIU Wanzhu, SHAN Xuanlong, WANG Pujun (Faculty of Earth Sciences at Jilin University, Changchun, 130061, P.R.China) CHEN Shumin and QU Yongbao (Daqing Petroleum Bureau Prospecting and Exploration Institute, Daqing, 163712, P.R.China) | 2001 | Global Geology2001，6，2： | 3 |
| 14 | Reassessment of the Distribution of Mantle CO_(2) in the Bohai Sea,China:The Perspective from the Source and Pathway System显示文摘Research on the distribution of mantle CO_(2)should involve comprehensive analysis from CO_(2)source to accumulation.The crust-mantle pathway system is the key controlling factor of the distribution of mantle CO_(2),but has received little attention.The pathway system and controlling factors of CO_(2)distribution in the Bohai Sea are analyzed using data on fault styles and information on the mantle and lithosphere.The relation between volcanic rocks and the distribution of mantle CO_(2)is reassessed using age data for CO_(2)accumulations.The distribution of mantle CO_(2)is controlled by uplift of the asthenosphere and upper mantle,magma conduits in the mantle and fault systems in the crust.Uplifted regions of the asthenosphere are accumulation areas for CO_(2).The area with uplift of the Moho exhibits accumulation of mantle CO_(2)at depth.CO_(2)was mainly derived from vertical migration through the upper mantle and lower crust.The fault style in the upper crust controls the distance of horizontal migration and the locations of CO_(2)concentrations.The distribution of mantle CO_(2)and volcanic rocks are not the same,but both probably followed the same pathways sometimes.Mantle CO_(2)in the Bohai Sea is concentrated in the Bozhong sag and the surrounding area,particularly in a trap that formed before 5.1 Ma and is connected to crustal faults(the Bozhang faults)and lithospheric faults(the Tanlu faults). | TANG Huafeng GUO Tianchan WU Keqiang LIU Zilin XU Jianyong LU Baoliang WANG Pujun | 2022 | Acta Geologica Sinica(English Edition)2022，96，1： | 2 |
| 15 | Modeling the multi-level plumbing system of the Changbaishan caldera from geochemical, mineralogical, Sr-Nd isotopic and integrated geophysical data显示文摘Changbaishan,an intraplate volcano,is characterized by an approximately 6 km wide summit caldera and last erupted in 1903.Changbaishan experienced a period of unrest between 2002 and 2006.The activity developed in three main stages,including shield volcano(basalts),cone-construction(trachyandesites to trachytes with minor basalts),and caldera-forming stages(trachytes to comendites).This last stage is associated with one of the more energetic eruptions of the last millennium on Earth,the 946 CE,VEI 7 Millennium Eruption(ME),which emitted over 100 km^(3) of pyroclastics.Compared to other active calderas,the plumbing system of Changbaishan and its evolution mechanisms remain poorly constrained.Here,we merge new whole-rock,glass,mineral,isotopic,and geobarometry data with geophysical data and present a model of the plumbing system.The results show that the volcano is characterized by at least three main magma reservoirs at different depths:a basaltic reservoir at the Moho/lower crust depth,an intermediate reservoir at 10-15 km depth,and a shallower reservoir at 0.5-3 km depth.The shallower reservoir was involved in the ME eruption,which was triggered by a fresh trachytic melt entering a shallower reservoir where a comenditic magma was stored.The trachytes and comendites originate from fractional crystallization processes and minor assimilation of upper crust material,while the less evolved melts assimilate lower crust material.Syn-eruptive magma mingling occurred during the ME eruption phase.The magma reservoirs of the caldera-forming stage partly reactivate those of the cone-construction stage.The depth of the magma storage zones is controlled by the layering of the crust.The plumbing system of Changbaishan is vertically extensive,with crystal mush reservoirs renewed by the replenishment of new trachytic to trachyandesitic magma from depth.Unlike other volcanoes,evidence of a basaltic recharge is lacking.The interpretation of the signals preceding possible future eruptions should consider the multi-level nature of the Changbaishan plumbing system.A new arrival of magma may destabilize a part of or the entire system,thus triggering eruptions of different sizes and styles.The reference model proposed here for Changbaishan represents a prerequisite to properly understand periods of unrest to potentially anticipate future volcanic eruptions and to identify the mechanisms controlling the evolution of the crust below volcanoes. | Jian Yi Pujun Wang Xuanlong Shan Guido Ventura Chengzhi Wu Jiannan Guo Pencheng Liu Jiahui Li | 2021 | Geoscience Frontiers2021，12，5： | 2 |
| 16 | Tenofovir disoproxil fumarate therapy in patients with chronic hepatitis B and advanced fibrosis or compensated cirrhosis显示文摘Background and aims:Tenofovir disoproxil fumarate(TDF)is the first-line therapy for chronic hepatitis B.This interim analysis presents the efficacy and safety data for TDF at Week 144 in patients with chronic hepatitis B and advanced fibrosis or compensated cirrhosis from China.Methods:Patients were assessed for incidence of newly diagnosed hepatocellular carcinoma(HCC)and disease progression,liver stiffness measurement(LSM),virological suppression(serum hepatitis B virus DNA<20 IU/mL),alanine aminotransferase normalization,hepatitis B e antigen(HBeAg)loss and seroconversion,histological liver fibrosis score,and safety at Week 144.Results:Overall,197 patients were enrolled.At Week 144,the incidence of newly diagnosed HCC was observed in 2.1%patients,and the incidence of disease progression was observed in 3.6%patients.The mean(standard deviation)change in LSM from baseline was5.1(5.85)kPa.Serum hepatitis B virus DNA<20 IU/mL was observed in 94.1%patients,alanine aminotransferase normalization in 33.5%patients,HBeAg loss in 35.6%patients,and HBeAg seroconversion in 14.4%patients.Among patients with stage F3 or F4 fibrosis at baseline by LSM,38.3%patients regressed to stage F0/1,and 22.0%of patients regressed to stage F2 at Week 144.Overall,67.7%patients experienced≥1 adverse events,13.8%patients experienced TDF-related adverse events,and 16.4%patients experienced serious(none were TDF-related).Conclusions:At Week 144 of TDF treatment,low incidence of HCC and disease progression were reported.Virological suppression was observed in 94.1%patients,which was associated with fibrosis regression.No new safety events were identified. | Huiying Rao Jia Shang Qing Xie Jianqi Lian Pujun Gao Junping Shi Xinyue Chen Jiefei Wang Min Xu Liaoyun Zhang Yingren Zhao QingMao Maorong Wang Wei Zhao Zong Zhang Jidong Jia Hong Tang Jiming Zhang Xin Zheng Chang Liu Lai Wei | 2022 | iLIVER2022，1，3： | 1 |
| 17 | ^40Ar/^39Ar and K/Ar dating on the volcanic rocks in the Songliao Basin, NE China: constraints on stratigraphy and basin dynamics显示文摘 | WANG Pujun LIU Wanzhu WANG Shuxue | 2002 | International Journal of Earth Sciences2002，91，： | 1 |
| 18 | The Cretaceous volcanic succession around the Songliao Basin NE China:relationship between volcanism and sedimentation 显示文摘 | Wang Pujun Ren Yanguang Shan Xuanlong | 2002 | Geological Journal2002，37，2： | 1 |
| 19 | Cretaceous volcanic reservoirs and their exploration in the Songliao Basin, northeast China显示文摘 | WANG Pujun CHEN Shumin | 2015 | AAPG Bulletin2015，99，3： | 1 |
| 20 | A New DOPO-Eugenol Adduct as an Effective Flame Retardant for Epoxy Thermosets with Improved Mechanical Properties显示文摘The development of efficient green flame retardants is an important way to realize more sustainable epoxy thermosets and downstream materials.In this work,a monoepoxide is synthesized through O-glycidylation of eugenol,and then reacted with DOPO(9,10-dihydro-9-oxa-10-phosphophenanthrene-10-oxide)to obtain a new bio-based flame retardant,DOPO-GE.DOPO-GE is blended with a bisphenol A epoxy prepolymer exhibiting good compatibility and DDS(4,4′-diaminodiphenylsulfone)is used as the curing agent to afford epoxy thermosets.Although DOPO-GE leads to the reduced glass transition temperature of the thermosets,the storage modulus increases considerably.The DOPO-GE-modified thermosets exhibit the high thermal stability with the onset thermal decomposition temperature in nitrogen and air exceeding 300℃.When the phosphorus content in the thermoset is 1.0%,the residual yield of the thermosets at 750℃ in nitrogen increases from 13.9%to 30.6%,due to the increased charring ability.More interestingly,when the phosphorus content is only 0.5%,the limiting oxygen index is as high as 30.3%with UL94 V0 achieved.Cone calorimeter results reveals the significantly decreased heat release rate,total heat release,mass loss and total smoke production.Furthermore,DOPO-GE can notably improve the flexural strength,flexural modulus and fracture toughness,whereas the shear and impact strength are reduced to varied extents.In short,DOPO-GE can be obtained via a facile way,and shows the good flame-retardant effect on the epoxy thermosets with an application potential. | Daqin Zhang Chufeng Yang Huayang Ran Juanli Wang Jintao Wan Yuhu Li Pujun Jin Daodao Hu | 2022 | Journal of Renewable Materials2022，10，7： | 1 |
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