在采用高真空两级薄膜蒸发分离甲苯二异氰酸酯(TDI)-三羟甲基丙烷(TMP)聚氨酯固化剂中游离TDI的实验研究基础上,进行了中试研究。
The free toluene diisocyanate(TDI) in the curing agent TDI-TMP(Trimethylol Propane) of polyurethane was separated in laboratory by means of high-vacuum two-stage thin-film evaporation.
尤其优选的是羟丙基三甲基铵季铵化的葡萄糖或果糖。
Particularly preferred are hydroxypropyl trimonium quaternized glucose or fructose.
蜜胺衍生物三羟甲基蜜胺C3N3(NHCH2OH)3与甲醛的缩聚反应制得的热固性树脂。
A thermosetting resin made by a condensation reaction of a melamine derivative, trimethylolmelamine, C3N3(NHCH2OH)3, with formaldehyde.
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