高厚度聚酯玻璃纤维毡板的制备及应用  

Preparation and application of high thickness polyester glass fiber felt board

作　　者：李定祥 李先德[1] 黄洪驰[1] 王炳生[1] 党晓东[1] LI Dingxiang;LI Xiande;HUANG Hongchi;WANG Bingsheng;DANG Xiaodong(National insulating materials engineering Technology Research Center,Sichuan EM Technology Co.,Ltd.,Mianyang 621000,China)

机构地区：[1]四川东材科技集团股份有限公司国家绝缘材料工程技术研究中心,四川绵阳621000

出　　处：《绝缘材料》2023年第1期18-22,共5页Insulating Materials

摘　　要：采用乙烯基树脂、低收缩剂、粉料、引发剂、阻聚剂等制得树脂糊,通过树脂糊浸渍连续玻璃毡,熟化后得到聚酯玻璃纤维毡板预浸料;通过模压热压成型得到聚酯玻璃纤维毡板,并对树脂制备、引发体系的选择、压制成型工艺进行研究。结果表明:随着聚酯玻璃纤维毡板厚度的增加,其成型越困难,内部缺陷也越多。采用自制的乙烯基树脂、选用碳碳中温引发剂,在120~125℃和7.5 MPa压力下制备了耐热等级为155级(F)的高厚度聚酯玻璃纤维毡板,同时解决了高厚度聚酯玻璃纤维毡板内部气孔、开裂的问题。A resin paste was prepared from vinyl resin, low shrinkage agent, powder, initiator, and polymerization inhibitor.The resin paste was used to impregnate continuous glass felt, then a polyester glass fiber felt board prepreg was obtained after curing, and a polyester glass fiber felt board was prepared by mould pressing and hot pressing. The preparation of resin,the selection of initiator system, and the pressing molding process were studied. The results show that with the increase of the thickness of polyester glass fiber felt board, it is more difficult to mold, and there are more internal defects in it. A high thickness polyester glass fiber felt board with grade 155(F) of heat resistance is obtained by using the self-prepared vinyl resin and carbon-carbon intermediate temperature initiator under 120-125℃ and 7.5 MPa, and the problems of pores and cracks in the high thickness polyester glass fiber felt board are solved at the same time.

关 键 词：聚酯玻璃毡板 高厚度 乙烯基树脂 热压成型 连续毡 

分 类 号：TM215[一般工业技术—材料科学与工程]