室温固化硅橡胶长效抗菌性能的研究  

Study on long-term antibacterial properties of room temperature vulcanized silicone rubber

作　　者：戴飞亮 付子恩 蒋金博 罗元章 周波雄 洪展鹏 Dai Feiliang;Fu Zien;Jiang Jinbo;Luo Yuanzhang;Zhou Boxiong;Hong Zhanpeng(Guangzhou Baiyun Chemical Industry Co.,Ltd.,Guangzhou 510540,Guangdong,China)

机构地区：[1]广州市白云化工实业有限公司,广东广州510540

出　　处：《中国胶粘剂》2021年第12期32-36,共5页China Adhesives

基　　金：广州市产业技术重大攻关计划(201902010023);广州市白云区创新创业领军团队项目(BYCX-创新)。

摘　　要：将胍类低聚物(PHMG)与异氰酸酯丙基三烷氧基硅烷反应合成新型抗菌剂,进一步以该抗菌剂应用于单组分室温缩合型硅橡胶,以提高硅橡胶抗菌防霉的长效性。研究结果表明:当异氰酸酯丙基三甲氧基硅烷与质量分数为0.075%的二月桂酸二丁基锡混合时,其正常与储存后的操作时间最佳。TM-PHMG-1000与TM-PHMG-2000的耐热性明显优于TM-PHMG-500,且TM-PHMG-1000抑菌性能最优。当w(TM-PHMG-10)>17.5%时,硅橡胶的抗菌保持能力达到最佳状态;与同等质量分数的PHMG-1000物理复配的硅橡胶相比,化学法接入自制抗菌剂TM-PHMG-10可使硅橡胶的抗菌保持能力显著提升,且胶体的粘接效果保持较好。A new antibacterial agent was synthesized by the reaction of guanidine oligomer(PHMG)with isocyanate propyltrialkoxysilane,and the antibacterial agent was further applied to one-component room temperature condensation type silicone rubber,in order to improve the long-term antibacterial and antifungal properties of silicone rubber. The research results showed that when isocyanate propyltrimethoxysilane was mixed with 0.075% mass fraction of dibutyltin dilaurate,the operation time after normal and storage was excellent. The heat resistance of TM-PHMG-1000 and TM-PHMG-2000 was significantly better than that of TM-PHMG-500,and TM-PHMG-1 000 had the best antibacterial performance. When w(TM-PHMG-10)>17.5%,the antibacterial retention ability of silicone rubber reached the best state. Compared with the physically compounded silicone rubber with the same mass fraction of PHMG-1000,adding the self-made antibacterial agent TM-PHMG-10 by the chemical method could significantly improve the antibacterial retention ability of silicone rubber,and the bonding effect of colloid could be maintained well.

关 键 词：聚六亚甲基胍盐酸盐 异氰酸酯丙基三甲氧基硅烷 长效抗菌 硅橡胶 

分 类 号：TQ436.6[化学工程]