24小时热门版块排行榜    

Znn3bq.jpeg
查看: 396  |  回复: 1

clytze_520

金虫 (小有名气)

[求助] 请虫友帮忙翻译这段,谢谢! 已有1人参与

A curing agent for epoxy resins prepared by reacting 25- and 26-bis(aminomethyl)-bicyclo[2.2.1]heptanes (1 equivalent of the active hydrogen in the amino group) with an epoxy resin (a reaction product of bisphenols or a novolak resin with epichlorohydrin; an epoxy equivalent of 150-300 g/eq.; two or more epoxy groups per molecule; bisphenol-A diglycidyl ether or bisphenol-F diglycidyl ether in particular)(0.025-0.50 equivalents of the epoxy group). The reaction temperature is 40.degree.-120.degree. C. The amount of the curing agent is within the range of 20-75 parts by weight relative to 100 parts by weight of an epoxy resin to be cured. The curing agent has a high curing rate at a room temperature and the epoxy resins cured by it have a good appearance as well as excellent adhesion water resistance and chemical resistance. Therefore the curing agent is suitable for paints civil engineering and construction materials adhesives casting resins laminates etc.
回复此楼

» 猜你喜欢

» 本主题相关价值贴推荐,对您同样有帮助:

已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

小浩子郭

金虫 (正式写手)

【答案】应助回帖

感谢参与,应助指数 +1
环氧树脂的固化剂是通过25、26-二(氨甲基)双环[2.2.1]庚烷(与氨基酸中的氢活性相同)与环氧树脂反应制得的,并且这种环氧树脂(是双酚的反应产物或者是酚醛清漆树脂与环氧氯丙烷结合的产物,一个环氧当量大约是150-300g/当量,两个或两个以上环氧树脂组为一个分子,尤其是双酚A环氧丙醚或者双酚F环氧丙醚是这个样子的)(为0.025-0.5环氧基的等价物)。反应温度为40--120度,如果加入环氧树脂的量为100质量数,则固化剂应加入量的质量数为20-75。固化剂在室温下就有很高的固化率并且环氧树脂拥有一个良好的表面以及优异的附着力、耐水性和耐化学腐蚀性。因此,固化剂适用于油漆土木工程和建筑材料粘合剂铸造树脂复合材料等。
谁的等待,恰逢花开
2楼2014-09-26 16:58:11
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
相关版块跳转 我要订阅楼主 clytze_520 的主题更新
最具人气热帖推荐 [查看全部] 作者 回/看 最后发表
[考研] 296求调剂 +12 汪!?! 2026-04-10 14/700 2026-04-11 08:24 by zhq0425
[考研] 0703化学 +32 妮妮ninicgb 2026-04-04 37/1850 2026-04-10 22:18 by bljnqdcc
[考研] 求调剂 +16 MAX怅惘 2026-04-09 18/900 2026-04-10 20:24 by 小鬼喔~~
[考研] 吉大计算机技术331分,英语六级,求调剂 +3 峰峰021116 2026-04-09 3/150 2026-04-10 20:01 by chemisry
[考研] 本9 一志愿西工大085601 324求调剂 +5 wysyjs25 2026-04-10 5/250 2026-04-10 16:57 by luoyongfeng
[考研] 08工学 309分求调剂 +6 Yin DY 2026-04-08 6/300 2026-04-10 09:18 by Delta2012
[考研] 268分085602化学工程调剂 +24 月照花林。 2026-04-09 24/1200 2026-04-10 08:09 by Sammy2
[考研] 278求调剂 +27 范婷娜 2026-04-07 31/1550 2026-04-09 20:49 by zhouxiaoyu
[考研] 一志愿中国科学院上海有机所,有机化学356分找调剂 +11 Nadiums 2026-04-09 11/550 2026-04-09 18:04 by lijunpoly
[考研] 085600材料与化工,求调剂 +11 won_qii 2026-04-07 11/550 2026-04-09 17:03 by luoyongfeng
[考研] 材料专硕322 +14 哈哈哈吼吼吼哈 2026-04-05 14/700 2026-04-09 13:25 by 5268321
[考研] 338求调剂 +8 wxygxsaaaaa 2026-04-06 8/400 2026-04-08 06:58 by 无际的草原
[考研] 316求调剂 +4 15318418673 2026-04-07 4/200 2026-04-07 22:12 by hemengdong
[考研] 0854求调剂 +9 亨氏番茄沙司 2026-04-06 10/500 2026-04-07 14:37 by shdgaomin
[考研] 285求调剂 +8 AZMK 2026-04-04 11/550 2026-04-06 13:56 by BruceLiu320
[考研] 331求调剂 +8 于征yz 2026-04-05 8/400 2026-04-06 00:54 by fmesaito
[考研] 考研调剂 +11 小sun要好运 2026-04-04 11/550 2026-04-05 08:02 by qlm5820
[考研] 320求调剂 +3 一样圆 2026-04-04 3/150 2026-04-04 22:29 by 啵啵啵0119
[考研] 325求调剂 +4 春风不借意 2026-04-04 4/200 2026-04-04 22:08 by 啵啵啵0119
[考研] 22408求调剂 354分 可跨专业 +3 hannnnnnn 2026-04-04 3/150 2026-04-04 14:35 by 土木硕士招生
信息提示
请填处理意见