轻薄低温防护手套用复合织物的制备及其性能

为利用相变微胶囊制备轻薄低温防护手套用复合织物，以正十八烷为芯材、三聚氰胺/ 尿素/ 甲醛树脂为壁材，采用原位聚合法制备合适的相变微胶囊，再将其转移涂层整理到纬平针织物上。探讨了相变微胶囊质量分数、涂层厚度对复合织物性能的影响，并对相变微胶囊分散情况、复合织物储热和耐低温性能进行测试及分析。结果表明：在相变微胶囊质量分数为40%，水质量分数为10%，黏合剂质量分数为50%条件下配制涂层液，涂层厚度为1.1mm时，制备的复合织物在-40、-80 ℃的环境下由初始温度降至0 ℃所需的时间分别为397、206 s，能满足短时间生物与医药技术低温操作需要，带来一定程度的保护。

Preparation and properties of composite fabric for light-weight low temperature protective gloves

In order to prepare the composite fabric for light-weight low temperature protective gloves using the phase change microcapsules (MEPCM),a kind of phase change microcapsule based on n-octadecane as core and melamine-urea-formaldehyde as shell was synthesized by in-situ polymerization method,and then the microcapsules were coated to weft knitted fabric's surface by transfer coating technique.The influences of the MEPCM mass fraction and coating thickness on the properties of the composite fabric were discussed,and the dispersion of MEPCM,heat storage and low temperature resistance performance of the composite fabric were tested and analyzed.The results shows that the optimal preparation process of the composite fabrics is that the coating thickness is 1.1 mm and the mass fraction of MEPCM,water and adhesive are 40％,10％ and 50％,respectively,and the time that the initial temperature of the internal environment drops to 0 ℃ of the composite fabric in the environment of -40 ℃ and-80 ℃ are 397 s and 206 s.The composite fabric can meet the needs of short-time low temperature operation and bring a certain degree of protection.