聚醚改性有机硅匀泡剂的制备与性能  

Preparation and Properties of Polyether Modified Silicone Foam Stabilizer

作　　者：李德全 何辛 高晟弢 陈清萍 姜琴 吴蓁 LI Dequan;HE Xin;GAO Shengtao;CHEN Qingping;JIANG Qin;WU Zhen(Material Science and Engineering School,Shanghai Institute of Technology, Shanghai 201418, China;Shanghai Resin Factory Co. Ltd, Shanghai 200336, China)

机构地区：[1]上海应用技术大学材料科学与工程学院,上海201418 [2]上海树脂厂有限公司,上海200336

出　　处：《聚氨酯工业》2019年第1期9-12,共4页Polyurethane Industry

基　　金：上海应用技术大学绿色涂料协同创新平台建设资助项目(3921NH166015);上海市防水材料硕士点建设项目(1021ZK180002004)

摘　　要：以高含氢硅油、八甲基环四硅氧烷(D4)、六甲基二硅氧烷(MM)和烯丙基聚醚等为主要原料制备聚醚改性硅油。对影响聚醚改性硅油性能的因素进行了考察,将其作为匀泡剂应用于聚氨酯硬泡和软泡发泡,并对发泡效果和普适性进行了研究。结果表明,采用特定含氢量的低含氢硅油和烯丙基聚醚,硅氢加成的最佳反应条件为:催化剂用量10μg/g,n(Si—H)/n(CC)=1∶1. 4,反应时间2 h,反应温度110℃。该聚醚改性硅油对于硬泡、软泡具有良好的发泡效果和普适性,最佳用量为质量分数2%。The high-hydrogen silicone oil, octamethylcyclotetrasiloxane, hexamethyldisiloxane and allyl polyether were used as the main raw materials for the preparation of polyether modified silicone oil. The factors affecting the performance of polyether modified silicone oil were investigated. The polyether modified silicone oil was applied as a foam stabilizer for rigid and flexible polyurethane (PU) foam respectively. The general applicability of the foa-ming were studied. The results showed that, when certain low-hydrogen silicone oil and allyl polyether were used, the optimal conditions in the hydrosilylation reaction were showed as below: catalyst dosage of the total reactants was 10 μg/ g, n(Si-H)∶ n(C=C) was 1 ∶ 1.4 and reacted 2 hours at 110 ℃. The polyether modified silicone oil with 2% of dosage had good foaming effect and universality for the rigid PU foam and flexible PU foam.

关 键 词：聚醚改性硅油 匀泡剂 聚氨酯泡沫塑料 发泡效果 普适性 

分 类 号：TQ314.24[化学工程—高聚物工业]