精细与专用化学品
精細與專用化學品
정세여전용화학품
FINE AND SPECIALTY CHEMICALS
2011年
11期
19-22
,共4页
脂肪族环氧树脂%低黏度%凝胶时间%力学性能
脂肪族環氧樹脂%低黏度%凝膠時間%力學性能
지방족배양수지%저점도%응효시간%역학성능
aliphatic epoxy resin%low viscosity%gel time%mechanical properties
以聚丙二醇和环氧氯丙烷为原料合成出了低黏度的脂肪族环氧树脂。使用上述环氧树脂与双酚A型环氧树脂按不同的比例混合后,再加入大分子胺类固化剂,由此构筑出环氧树脂固化体系并对其黏度、凝胶时间和固化物的力学性能进行了表征。结果显示,该环氧树脂固化体系在常温下具有很低的黏度与较长的凝胶时间,其固化物的拉伸与弯曲性能较好,且冲击韧性有了明显的改善。
以聚丙二醇和環氧氯丙烷為原料閤成齣瞭低黏度的脂肪族環氧樹脂。使用上述環氧樹脂與雙酚A型環氧樹脂按不同的比例混閤後,再加入大分子胺類固化劑,由此構築齣環氧樹脂固化體繫併對其黏度、凝膠時間和固化物的力學性能進行瞭錶徵。結果顯示,該環氧樹脂固化體繫在常溫下具有很低的黏度與較長的凝膠時間,其固化物的拉伸與彎麯性能較好,且遲擊韌性有瞭明顯的改善。
이취병이순화배양록병완위원료합성출료저점도적지방족배양수지。사용상술배양수지여쌍분A형배양수지안불동적비례혼합후,재가입대분자알류고화제,유차구축출배양수지고화체계병대기점도、응효시간화고화물적역학성능진행료표정。결과현시,해배양수지고화체계재상온하구유흔저적점도여교장적응효시간,기고화물적랍신여만곡성능교호,차충격인성유료명현적개선。
A aliphatic epoxy（AEP） resin with low viscosity was synthesized by the reaction of polypropylene glycol 1000 and epichlorohydrin.The AEP was mixed with the bisphenol A epoxy resin,and then the resulting epoxy resin system was cured with the polymeric amine curing agent.The effect of AEP content on gel time of the epoxy resin system was studied and the mechanical properties of the cured resin containing AEP were also discussed.It showed that the epoxy resin system had very low viscosity and longer gel time at room temperature, and its cured product possessed good stretching and bending properties and better impact toughness.
