聚丙二醇消泡剂对天然橡胶性能的影响研究  

Effect of PPG Defoamer on Properties of Natural Rubber

作　　者：杨春 余守宽 罗建宇 高东阳 朱严瑾 YANG Chun;YU Shoukuan;LUO Jianyu;GAO Dongyang;ZHU Yanjin(Yunnan Natural Rubber Industry Group Co.,Ltd,Kunming 650216,China;Natural Rubber Processing Engineering&Technology Research Center of Yunnan Province,Kunming 650216,China)

机构地区：[1]云南天然橡胶产业集团有限公司,云南昆明650216 [2]云南省天然橡胶加工工程技术研究中心,云南昆明650216

出　　处：《橡胶科技》2022年第4期166-171,共6页Rubber Science and Technology

基　　金：云南省科技人才和平台计划项目(2019IC027)。

摘　　要：在天然橡胶(NR)造粒过程中因残留的酸和碱相互作用会产生大量泡沫。采用聚丙二醇(PPG)水溶液作为消泡剂,研究其消泡效果及对NR性能的影响,并采用红外光谱分析PPG的残留情况。结果表明:使用PPG消泡可有效解决NR传统生产造粒工段产生大量泡沫的问题,且PPG不会残留在NR产品中;PPG消泡对NR生胶的理化性能、混炼胶的硫化特性、硫化胶的物理性能基本没有影响;NR制胶厂的现场管理水平得到有效提升,工作环境明显改善,在有效控制成本的同时还可提高产品质量,建议PPG消泡剂在NR行业推广使用。In the granulation process of natural rubber(NR),a large amount of foam will be generated due to the interaction of residual acid and alkali. In this study,the aqueous solution of polypropylene glycol(PPG) was used as the defoamer to study its defoaming effect and its influence on the properties of NR,and the residue of PPG was analyzed by infrared spectroscopy. The results showed that the use of PPG defoaming could effectively solve the problem of large amount of foam produced in the traditional granulation section of NR production,and PPG would not remain in NR products. Using PPG as defoamer had no effect on the physical and chemical properties of NR raw rubber,the curing characteristics of the NR compound and the physical properties of the NR vulcanizate. The on-site management level and the working environment of the NR factory had been effectively improved,and the product quality could be improved while effectively controlling the cost. It was recommended to promote the use of PPG defoamer in the NR industry.

关 键 词：天然橡胶 聚丙二醇 消泡 性能 

分 类 号：TQ330.52[化学工程—橡胶工业]