摘要
以α,ω-聚二甲基硅氧烷为基胶、甲基三丁酮肟基硅烷和纳米碳酸钙构成单组分脱酮肟型室温固化硅橡胶中,分别加入二乙胺基甲基三乙氧基硅烷(ND22)、苯胺基甲基三乙氧基硅烷(ND42)催化,研究密封胶的表干时间、力学性能和粘接性,并与有机锡(DBTDL)、γ-氨丙基三乙氧基硅烷(APTS)体系进行对比。结果表明:适当增大α-氨基硅烷的用量,密封胶的表干时间、粘接性与有机锡催化效果相近,同时其力学性能相应提升。
Two kinds ofα-aminosilanes catalysts,aminomethyl triethoxysilane(ND22),and anilinomethyl triethoxysilane(ND42)were added to a one-component ketone-oxime room temperature vulcanization silicone rub⁃ber respectively,which consists ofα,ω-dihydroxy poly(dimethylsiloxane),methyltris-methylethylketoximosilane and nano calcium carbonate.The performance of the sealant was studied by the tack free time,mechanical proper⁃ties and adhesion.A comparison was performed with Organotin(DBTDL)andγ-aminopropyl triethoxysilane(APTS).The results show that by appropriately increasing the amount ofα-aminosilane,the tack free time and ad⁃hesion of the sealant can be equivalent to organotin catalysis,and its mechanical properties are correspondingly im⁃proved.
作者
周熠
付子恩
温子巍
王聪
蒋金博
ZHOU Yi;FU Zien;WEN Ziwei;WANG Cong;JIANG Jinbong(Guangzhou Baiyun Chemical Industry Co.,Ltd.,Guangzhou 510540,China)
出处
《粘接》
CAS
2023年第5期5-7,共3页
Adhesion
关键词
硅橡胶
α-氨基硅烷
脱酮肟型
力学与粘接性能
silicone rubber
α-aminosilane
ketone-oxime
mechanical and adhesive properties
作者简介
周熠(1992-),男,工程师,主要从事硅橡胶高分子材料研究,E-mail:1025619401@qq.com。
