Lianli Yang

Sichuan University of Science and Engineering

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Guozheng Liang

Soochow University

Shaobo He

Zhejiang Ocean University

Xiaoyan Ma

Beihang University

Jinhe Wang

China Southern Power Grid (China)

Guo Nai-ni

Xianyang Normal University

Hongxia Yan

Northwestern Polytechnical University

Shouyong Zhou

Huaiyin Normal University

Weihong Xing

Nanjing Tech University

Yijiang Zhao

Huaiyin Normal University

Juanli Deng

Chang'an University

Cooperative Institutions

Northwestern Polytechnical University

Huaiyin Normal University

Xianyang Normal University

Northwest University

Nanjing University

Yangzhou University

Sichuan University of Science and Engineering

Chinese Academy of Sciences

Tianjin University of Science and Technology

Qingdao University of Technology

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Study of Acrylated Soybean Oil Modified Bisphenol-A Epoxy Resin

华南师范大学学报（自然科学版） (2018)

H Zhang Lianli Yang Li Y T

Acrylated epoxidized soybean oil was synthesized from acrylic acid and epoxidized soybean oil. To investigate thermal properties,mechanical properties and Shore D hardness of acrylated epoxidized soybean oil modified bisphenol-A epoxy resin using triethylenetetramine as curing agent,fourier transform infrared spectroscopy (FTIR) ,differential scanning calorimetry (DSC) ,thermal gravity analysis (TG) ,mechanical propertie tests and shore D hardness testing were utilized. The results indicated that the enthalpy of acrylated epoxidized soybean oil (∆H=28.63 J/g) was far less than that of bisphenol-A epoxy resin (∆H=428.25 J/g) when both reacted with triethylenetetramine. With the content of acrylated epoxidized soybean oil in blends increased,the enthalpy,glass transition temperature,tensile strength,tensile modulus and hardness obviously decreased while peak curing temperature,impact strength and breaking elongation gradually increased. Moreover,modified biphenol-A epoxy resin gradually came into ductile fracture,which demonstrated that acrylated epoxidized soybean oil can toughen bisphenol-A epoxy resin.

Epoxidized soybean oil

Shore durometer

Soybean oil

Triethylenetetramine

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Preparation and characteristics of sodium alginate/Na+rectorite-g-itaconic acid/acrylamide hydrogel films

Carbohydrate Polymers (2014)

Lianli Yang Xiaoyan Ma Guo Nai-ni Yang Zhang

Itaconic acid

Sodium alginate

10.1016/j.carbpol.2014.01.043

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Citations (13)

Thermodynamics of the production of condensed phases in the chemical vapor deposition of ZrC in the ZrCl4–CH4–H2–Ar system

Thin Solid Films (2014)

Haiping Liu Juanli Deng Lianli Yang Laifei Cheng Lei Luo

Deposition

Inert

Inert gas

10.1016/j.tsf.2014.03.023

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Citations (8)

Carbon dots doped with nitrogen and sulfur and loaded with copper(II) as a “turn-on” fluorescent probe for cystein, glutathione and homocysteine

Microchimica Acta (2016)

Ying Guo Lianli Yang Wu‐Wu Li Xiaofang Wang Yonghui Shang

Quantum yield

Carbon fibers

Nanochemistry

10.1007/s00604-016-1779-6

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Citations (114)

Curing behavior and mechanical properties of hollow glass microsphere/bisphenol a dicyanate ester composites

Journal of Applied Polymer Science (2010)

Jinhe Wang Guozheng Liang Shaobo He Lianli Yang

Abstract Hollow glass microsphere (HGS)/bisphenol A dicyanate ester (BADCy) composites have been prepared by mechanical mixing, followed by a stepped curing process. The effect of HGS on the curing behavior of BADCy was studied using differential scanning calorimetry (DSC) and Fourier transform infrared spectroscopy (FTIR). The mechanical properties of the composites were examined by mechanical tests, and the improvements of the mechanical properties were investigated by scanning electron microscopy (SEM) and dynamic mechanical analysis (DMA). The results show that HGS is catalytic for the polycyclomerization of the BADCy, which is advantageous to reduce the maximal processing temperature. The impact strength, flexural strength, flexural modulus and storage modulus of BADCy are improved. The improvements of the mechanical properties without sacrificing thermal properties, the ability of lowing processing temperature and the low cost make HGS good filler for cyanate ester resin. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010

Cyanate ester

Flexural modulus

Heat deflection temperature

Thermal Stability

10.1002/app.32446

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Citations (18)

Purification and characterization of glucoamylase of Aspergillus oryzae from Luzhou-flavour Daqu

Biotechnology Letters (2020)

Chuan Wang Lianli Yang Lunan Luo Shichao Tang Qiang Wang

Thermostability

Aspergillus oryzae

Thermal Stability

10.1007/s10529-020-02956-4

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Citations (17)

High performance toughened cyanate ester resin with low injection temperature for RTM process

Polymers for Advanced Technologies (2008)

Shaobo He Guozheng Liang Hongxia Yan Jinhe Wang Lianli Yang

Abstract A high‐performance modified cyanate resin system with low injection temperature for fabricating advanced composites via resin transfer molding (RTM) was developed, which was made of bisphenol A dicyanate ester (BADCy) and diallyl phthalate (DAP). The processing characteristics, mechanical, and thermal properties of the resin were studied, and the effect of the content of DAP on the processing and performance parameters was discussed. The results show that the processing properties of the modified cyanate system are dependent on the content of DAP. All the formulations studied in this paper have good processing characteristics; their injection temperatures are between 30 and 40°C and the pot life is about 20 hr at 50°C. The cured resins exhibited good thermal stability, excellent toughness, and good hot–wet resistance, suggesting that the toughened cyanate resin is a potential high‐performance RTM matrix for advanced composites. Copyright © 2008 John Wiley & Sons, Ltd.

Cyanate ester

Thermal Stability

Transfer molding

Cyanate

10.1002/pat.1291

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Citations (16)

Spectrophotometric determination of manganese based on fading reaction of indigo

Metallurgical Analysis (2009)

Lianli Yang

A novel spectrophotometric method for the determination of manganese was estabilished.It was based on the fact that the fading reaction of indigo could be oxidized by Mn in the medium of 0.03-0.10 mol/L H2SO4,and the fading extent is linear with the amount of manganese.The optimum conditions of the fading reaction were examined along with the interference of coexisting ions on the determination.The method was applied to the determination of manganese in steel and aluminium alloy.It was indicated experimentally that,at 610 nm,the absorbency difference between non-catalytic reaction and catalytic reaction was the maximum and exhibited a good linear relationship with the mass concentration of manganese in the range of 0-2.0 μg/mL.Common metal elements in steel did not interfere with the determination,and a large amount of iron could be masked by adding sodium fluoride solution.For the determination of manganese in steel and aluminium alloy samples,the found values by the proposed method were consistent with the certified values,with RSDs(n=6) of 1.1%-1.6% and recoveries between 99% and 102%.

Spectrophotometry

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Preparation of Superabsorbent Polymer through Multi-constituties Grafting of Modified Pulp

Chemical Intermediates (2008)

Lianli Yang

SA was prepared from CMP through multi-constitutes graft copolymerization. The optimal preparating craft of SA was researched. The structure and morphology of copolymer were anylized by IR and SEM. The optimal conditions of SA are that DS is 0.52, mass ratio of monomer and CMP is 8∶1, mass ratio of AM and AA is 0.5, amount of crosslinker is 0.032%, and the volume ratio of methanol and water is 6∶4. Absorbency of SA for Water and 0.9%NaCl solution are 639g/g, 110g/g respectly. The absorbency and absorb water rate of SA can be raised by adding methanol.

Superabsorbent polymer

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Influence of the Ratio of Epoxy/cyanate Ester on the Curing Behavior of Epoxy/dicyclopentadiene Bisphenol Cyanate Ester System

High Performance Polymers (2008)

Jinhe Wang Guozheng Liang Hongxia Yan Shaobo He Lianli Yang

The influence of the ratio of epoxy (EP) to dicyclopentadiene bisphenol cyanate ester (DCPDCE) on the curing behavior of EP/DCPDCE system was studied using differential scanning calorimetry and Fourier transform infrared spectroscopy. The conversion of —OCN groups and the formation of the reaction products in the different EP/DCPDCE systems and at different curing steps were determined. The results show that the epoxy resin has both a catalytic effect and a dilution effect on the trimerization reaction of —OCN groups. These two effects reach an approximate balance when the content of epoxy resin in the EP/DCPDCE system is 15 wt.%. In addition, the epoxy resin can improve the final conversion of —OCN groups, and the initial amount of epoxy resin has a significant influence on the final structure of the co-polymers.

Dicyclopentadiene

Cyanate ester

Cyanate

Epichlorohydrin

10.1177/0954008308097424

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Citations (8)