聚四氟乙烯改性水性聚氨酯自润滑涂料的制备与应用

PTFE

聚四氟乙烯改性水性聚氨酯自润滑涂料的制备与应用   
Preparation and Application of PTFE Aqueous Dispersion Modified Waterborne Polyurethane Self-lubrication Coatings

作　　者：杨静 张吕 章于川
YANG Jing1,2,ZHANG Lyu1,2 ,ZHANG Yuchuan1,2.3 （ 1 .Anhui ADZD Rubber Technology Development Co., Ltd, Hefei 230088, China; 2.Anhui Key Laboratory of High Performance Rubber Materials and Products,Hefei 230088,China;3. Anhui Province Key Laboratory of Environment-friendly Polymer Materials,Hefei 230601 ,China）

机构地区：[1]安徽安大中鼎橡胶技术开发有限公司,安徽合肥230088 [2]高性能橡胶材料及制品安徽省重点实验室,安徽合肥230088 [3]安徽省绿色高分子材料重点实验室,安徽合肥230601

出　　处：《橡胶工业》2018年第7期752-755,共4页
China Rubber Industry

基　　金：安徽省绿色高分子材料重点实验室资助项目（2015kf05）

摘　　要：通过向封闭型有机硅改性水性聚氨酯（PU）乳液中,加入聚四氟乙烯（PTFE）水性分散液及色浆、助剂等,制备三元乙丙橡胶（EPDM）制品用水性自润滑涂料,考察用其涂装EPDM硫化试样表面时涂层厚度、附着力和摩擦性能。试验结果表明：涂层为亚光黑色,厚度为5～10μm,滑动摩擦因数在0.4以下,附着良好。加入10份PTFE水性分散液（以有机硅改性水性PU乳液为100份计）时,在满足涂层附着力要求的前提下,显著降低了涂层表面滑动摩擦因数,达到自润滑和耐磨的使用要求。
Wear-resistant self-lubrication coatings for EPDM goods were prepared by adding the PTFE aqueous dispersion,color paste and additives into organosilicone modified waterborne PU emulsion,and the thickness,adhesive force and wear-resistance of the coating on the surface of vulcanized EPDM sample were studied. The test results showed that the thickness of the matte black coating with strong adhesion was about 5～10 μm,and the sliding friction coefficient was under 0. 4. When the addition level of the PTFE aqueous dispersion was 10 phr（when the addition level of organosilicone modified waterborne PU emulsion was 100 phr）,the adhesive force of the coating met the requirements,the sliding friction coefficient was significantly decreased,and the self-lubrication property and wear-resistance could reach the requirements of application.

关 键 词：聚四氟乙烯水性分散液 耐磨性 三元乙丙橡胶 聚氨酯 水性涂料

分 类 号：TQ63[化学工程—精细化工] TQ334.1