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Chemistry and Industry of Forest Products ›› 2018, Vol. 38 ›› Issue (4): 13-19.doi: 10.3969/j.issn.0253-2417.2018.04.003

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Synthesis and Properties of Fumaropimaric Acid Modified RTV Silicone Rubber

Qiaoguang1, LIU He1, LI Jianfang2, SHANG Shibin1, SONG Zhanqian1   

  1. 1. Institute of Chemical Industry of Forest Products, CAF;National Engineering Lab. for Biomass Chemical Utilization;Key and Open Lab. of Forest Chemical Engineering, SFA;Key Lab. of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China;
    2. Nanjing Tianyi Patent Agency Co., Ltd., Nanjing 210042, China
  • Received:2018-03-01 Online:2018-08-25 Published:2018-08-10

Abstract: Fumaropimaric acid modified aminopropyltriethoxysilane(FA) was prepared by derivative reaction with rosin as raw material and the structure of the product was confirmed by FT-IR, 1H NMR and 13C NMR. Fumaropimaric acid modified room temperature vulcanized(RTV)silicone rubber was prepared by the dealcoholization condensation reaction of crosslinking agent(FA) and hydroxyl end-blocked dimethylsiloxane(PDMS). And the effects of hydrogenated phenanthrene ring of rosin on the morphology, mechanical and thermal properties of fumaropimaric acid modified RTV silicone rubber were studied, it was found that fumaropimaric acid modified RTV silicone rubber had better the mechanical and thermal properties compared to the unmodified silicone rubber. The tensile strength and elongation at break were 1.22 MPa and 315%; and The 10% mass loss temperature increased to 472℃ (SRFA-1), the greatest rate of mass loss temperature increased to 569℃, and the residual rate was 3.88%, respectively.

Key words: fumaropimaric acid, silicone rubber, crosslinking agent, modified

CLC Number: