间苯和对苯聚酯树脂在含醇汽油中的耐腐蚀性研究  

THE CORROSION RESISTANCE STUDY OF ISO-PHTHALIC & TERE-PHTHALIC POLYESTER RESINS IN ALCOHOL CONTAINING GASOLINE ENVIRONMENT

作　　者：JIN Li-xin 彭际梅 于浩 吕金艳 

机构地区：[1]雷可德贸易北京有限公司,北京100176

出　　处：《玻璃钢／复合材料》2015年第2期56-59,46,共5页Fiber Reinforced Plastics/Composites

摘　　要：防腐树脂除了提供耐化学腐蚀作用外,其FRP制品的外观也常被作为评判树脂的重要标准。交联密度高的树脂具有较好的耐腐蚀性能,但这种树脂因其分子量高而使得其最终制品的外观常出现问题。降低分子量可以提高树脂的玻纤浸润性从而提高制品外观,但其耐腐蚀性会低于高分子量树脂。本研究将对比2∶1(2mol顺丁烯∶1mol对苯二甲酸∶3mol丙二醇)对苯基聚酯和2∶1(2mol顺丁烯∶1mol间苯二甲酸∶3mol丙二醇)间苯基聚酯树脂,其重均(Mw)分子量从6000增加到20000,以确定能够耐乙醇汽油混合物腐蚀所需要的最小Mw分子量。不同分子量的间苯和对苯聚酯树脂的物理性能保留率的数据将作为分析依据。最终得出了对苯树脂比间苯树脂在含醇汽油中具有更好的耐腐蚀性的结论。The primary duty of a corrosion resin is to provide the required performance characteristics for its intended environment but often another critical requirement is to provide aesthetic characteristics, which are sometimes a problem to achieve with high molecular weight resin of a crystalline nature. Reduced molecular weight resins will provide improved glass wetting and aesthetics,but these reduced molecular weight polymers may not have the same corrosion performance as their higher weight counterparts. In this study,A 2 ∶1（2 moles of maleic ∶1 mole of terephthalic ∶3 moles of propylene glycol） terephthalic based polymer and a 2 ∶ 1（2 moles of maleic ∶ 1 mole of isophthalic ∶3 moles of propylene glycol） isophthalic based polymer with Mw values incrementally increasing from6000 to 20,000 to determine what is the minimum Mw value required to provide satisfactory corrosion performance in gasohol blends will be compared. Physical property performance retention data will be presented for the various Mw values of the two polymer types. The conclusion analyzed by the physical property retention performance is terephthalic based polymers has a better anticorrosion property than isophthalic based polymers in gasoline alcohol blend.

关 键 词：对苯树脂 间苯树脂 地下储油罐 含醇汽油 玻璃钢 分子量 耐腐蚀树脂 

分 类 号：TB332[一般工业技术—材料科学与工程]