松香基交联剂的制备及其对硅橡胶性能的影响

doi:10.3969/j.issn.0253-2417.2018.02.012

林产化学与工业 ›› 2018, Vol. 38 ›› Issue (2): 87-93.doi: 10.3969/j.issn.0253-2417.2018.02.012

松香基交联剂的制备及其对硅橡胶性能的影响

李侨光¹, 刘鹤¹, 李建芳², 商士斌¹, 宋湛谦¹

1. 中国林业科学研究院林产化学工业研究所;生物质化学利用国家工程实验室;国家林业局林产化学工程重点开放性实验室;江苏省生物质能源与材料重点实验室, 江苏南京 210042;
2. 南京天翼专利代理有限责任公司, 江苏南京 210042

收稿日期:2017-09-24 出版日期:2018-04-25 发布日期:2018-04-28
通讯作者: 宋湛谦,男,研究员,博士生导师,从事松脂资源深加工利用研究;E-mail:songzq@hotmail.com。 E-mail:songzq@hotmail.com
作者简介:李侨光(1987-),男,广东化州人,博士生,从事天然资源化学与利用的研究;E-mail:liqiaoguang8799@163.com
基金资助:
国家自然科学基金资助项目（31570562）；江苏省生物质能源与材料重点实验室基本科研业务费重点项目（JSBEM-S-201504）；研究团队建设创新工程项目（LHSXKQ1）

Synthesis of Rosin Based Crosslinking Agent and Its Effect on Properties of Cured Silicone Rubber

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

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:2017-09-24 Online:2018-04-25 Published:2018-04-28

摘要/Abstract

摘要： 以松香为原料，经衍生化反应合成松香改性氨丙基三乙氧基硅烷（RA），并将其作为交联剂用于制备松香基硅橡胶，研究其对硅橡胶微观形貌、力学和热稳定性等性能的影响。结果表明：松香基硅橡胶比传统硅橡胶具有更好的力学性能和热稳定性，以30 g羟基封端聚二甲基硅氧烷（PDMS）为基础聚合物，当RA用量为11.1 g时，拉伸强度和断裂伸长率较好，分别为0.51 MPa和353%，相比传统硅橡胶提高了11%和84%；最大热失重速率温度为592℃，相比传统硅橡胶提高201℃，同时800℃残留率提高了4.17%，玻璃化转变温度也略有提升。

关键词: 松香, 硅橡胶, 交联剂, 性能

Abstract: Rosin modified aminopropyltriethoxysilane(RA) was obtained via rosin derivatization reaction. RA was used as crosslinking agent to prepare rosin based room temperature vulcanized silicone rubber and to study its effect on the morphology, mechanical and thermal properties of rubber. It was found that rosin based silicone rubber had better mechanical and thermal properties than those of the traditional silicone rubber. The tensile strength and elongation at break of rosin based silicone rubber were 0.51 MPa and 353% respectively, under the conditions of 11.1 g RA and 30 g hydroxyl terminated polydimethylsiloxane as primary polymers. Compared with the traditional silicone rubber, tensile strength and elongation at break of rosin increased by 11% and 84%, meanwhile the maximum weight loss rate temperature was 592℃, rising by 201℃. Correspondingly, the residual rate at 800℃ increased by 4.17% and the glass transition temperature of the silicone rubber also increased slightly.

Key words: rosin, silicone rubber, crosslinking agent, characterization

中图分类号:

TQ35

李侨光, 刘鹤, 李建芳, 商士斌, 宋湛谦. 松香基交联剂的制备及其对硅橡胶性能的影响[J]. 林产化学与工业, 2018, 38(2): 87-93.

LI Qiaoguang, LIU He, LI Jianfang, SHANG Shibin, SONG Zhanqian. Synthesis of Rosin Based Crosslinking Agent and Its Effect on Properties of Cured Silicone Rubber[J]. Chemistry and Industry of Forest Products, 2018, 38(2): 87-93.

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松香基交联剂的制备及其对硅橡胶性能的影响

Synthesis of Rosin Based Crosslinking Agent and Its Effect on Properties of Cured Silicone Rubber

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