精细与专用化学品
精細與專用化學品
정세여전용화학품
FINE AND SPECIALTY CHEMICALS
2012年
10期
25-28
,共4页
石建华%赵满堂%韩新稳%王重辉
石建華%趙滿堂%韓新穩%王重輝
석건화%조만당%한신은%왕중휘
聚酯型多元醇%水性聚氨酯%激活反应%同化剂%黏结强度
聚酯型多元醇%水性聚氨酯%激活反應%同化劑%黏結彊度
취지형다원순%수성취안지%격활반응%동화제%점결강도
polyester type polyol%waterborne polyurethane%activation%curing agent%adhesion strength
聚乙二醇(PEG-1000)与甲基六氢苯酐(MHHPA)在催化剂XCT-cat81的存在下生成聚酯多元醇,再在催化剂XCT-cat57存在下,再与二苯基甲基4,4’-二异氰酸酯(MDI)反应生成聚氨酯预聚体,最后用苯酚封端制得水性聚氨酯。使用FTIR红外光谱仪分别对聚酯多元醇和水性聚氨酯进行了表征。使用大分子聚胺XCT-802及低分子二乙烯三胺(DETA)两种固化剂研究了水性聚氨酯封端基的激活反应,讨论了二种固化剂在不同固化温度与固化时间对水性聚氨酯木材黏结强度的影响。
聚乙二醇(PEG-1000)與甲基六氫苯酐(MHHPA)在催化劑XCT-cat81的存在下生成聚酯多元醇,再在催化劑XCT-cat57存在下,再與二苯基甲基4,4’-二異氰痠酯(MDI)反應生成聚氨酯預聚體,最後用苯酚封耑製得水性聚氨酯。使用FTIR紅外光譜儀分彆對聚酯多元醇和水性聚氨酯進行瞭錶徵。使用大分子聚胺XCT-802及低分子二乙烯三胺(DETA)兩種固化劑研究瞭水性聚氨酯封耑基的激活反應,討論瞭二種固化劑在不同固化溫度與固化時間對水性聚氨酯木材黏結彊度的影響。
취을이순(PEG-1000)여갑기륙경분항(MHHPA)재최화제XCT-cat81적존재하생성취지다원순,재재최화제XCT-cat57존재하,재여이분기갑기4,4’-이이청산지(MDI)반응생성취안지예취체,최후용분분봉단제득수성취안지。사용FTIR홍외광보의분별대취지다원순화수성취안지진행료표정。사용대분자취알XCT-802급저분자이을희삼알(DETA)량충고화제연구료수성취안지봉단기적격활반응,토론료이충고화제재불동고화온도여고화시간대수성취안지목재점결강도적영향。
A kind of polyester type polyol was synthesized by the reaction between polyethylene glycol (PEG- 1000 ) and methyl hexahydrophthalic anhydride (MHHPA) in the presence of catalyst XCT-cat 81. The waterborne pol- yurethane (WPU) was prepared by the reaction between the resulting polyol and MDI in the presence of catalyst XCT- cat 57, and then two end groups of the resulting product was reacted with phenol. The polyester type polyol and water- borne polyurethane were characterized by FTIR spectroscopy. The activation of the WPU was investigated using poly- amine XCT-802 and DETA as curing agent, respectively. The adhesion strength from the WPU on wood sample was ex- amined using two curing agents at different curing temperature and curing time.