改性二氧化硅基黄原酸盐对天然胶乳性能影响研究  

Effect of Silica Xanthate on the Properties of Natural Latex

作　　者：仪明源 闫思彤 方林[1] 汪志芬[1] YI Mingyuan;YAN Sitong;FANG Lin;WANG Zhifen(College of Materials Science and Engineering,Hainan University,Haikou Hainan 570228,China)

机构地区：[1]海南大学材料科学与工程学院,海南海口570228

出　　处：《热带农业科学》2023年第7期84-89,共6页Chinese Journal of Tropical Agriculture

基　　金：海南省基础与应用基础研究计划(自然科学领域)高层次人才项目(No.2019RC140)。

摘　　要：为了研究改性二氧化硅基黄原酸钠(SSXF)对天然胶乳硫化胶膜和配合胶乳胶体性能的影响,采用聚偏氟乙烯包覆二氧化硅基黄原酸钠,以提高二氧化硅基黄原酸钠在水中的稳定性,制备出对天然胶乳具有硫化促进作用的改性二氧化硅基黄原酸钠(SSXF)。结果表明,SSXF具有良好的热稳定性,在水中具有较好的稳定性,可以作为天然胶乳的硫化促进剂。与硫化促进剂乙基黄原酸钠(SEX)和常用的二乙基二硫代氨基甲酸锌(ZDC)相比,SSXF的硫化胶膜具有更好的拉伸强度和撕裂强度,最佳用量分数为5 phr(每100份橡胶所含的份数)。SSXF可以提高配合胶乳的机械稳定性和热稳定性。Modified sodium silica xanthate(SSXF)with vulcanization promotion effect on natural latex was prepared by using polyvinylidene fluoride coated with sodium silica xanthate to improve the stability of sodium silica xanthate in water to study the SSXF effect on the vulcanization film of natural latex and the colloidal properties of mating latex.The results showed that SSXF has good thermal stability and well stability in water and can be used as a vulcanization accelerator for natural latex.Compared to the vulcanization accelerator sodium ethylxanthate(SEX)and the commonly used zinc diethyl dithiocarbamate(ZDC),the vulcanized latex film with SSXF has better tensile and tear strength with an optimum dosage fraction.

关 键 词：天然胶乳 二氧化硅 黄原酸盐 硫化促进剂 力学性能 胶体性能 

分 类 号：TQ331.2[化学工程—橡胶工业]