Effect of organosilicon resin containing disulfide bonds on elastic properties of cotton fabric
2022
Wang, Rong | Deng, Shuang | Cao, Lixia | Liu, Yanmei | Yang, Wenyu | Min, Jie | Fang, Jin
Cotton fabrics are popular for their excellent properties, but their property of creasing easily largely limits the wide application of cotton fabrics. In this paper, an organosilicon resin emulsion containing disulfide bonds was prepared with epoxy-terminated silicone oil and 4,4-diaminodiphenyl disulfide (AFD) as raw materials, and it was used as a finishing agent for the elastic finishing of cotton fabrics. The effects of raw material ratio on the elastic properties of organosilicon polymer film and the effects of emulsifier dosage and emulsification time of emulsion polymerization on the properties of organosilicon resin emulsion were studied. In addition, the effects of organosilicon finishing agent dosage, curing temperature, and curing time on the elastic properties of cotton fabric were also studied. The research results show that the average particle size of the prepared organosilicon resin emulsion is about 250 nm, the particle size distribution is concentrated and the emulsion is stable. The delayed elastic recovery angle of the cotton fabric treated with an organosilicon finishing agent can reach 185°, showing excellent high delayed elasticity. At the same time, it was found that the finished cotton fabric exhibited an excellent and special temperature-responsive shape memory function based on the existence of disulfide bonds in the organosilicon polymer network structure.
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