甲酚羧酸 的英文怎麼說
中文拼音 [jiǎfēnsuōsuān]
甲酚羧酸
英文
cresol carboxylic acid-
Other : the dyewood is known as the suppression histidine decarboxylase, the catecha phenol - o - methyl shift enzyme action
其它:染料木素有抑制組氨酸脫羧酶，兒茶酚- o -甲基轉移酶作用( 3 ) volume shrinkage of composite decreases greatly with wpu increasing, even can arrive a negative number, but thermal stability is still good. ( 4 ) toughening mechanism is that : the formation of high molecular linear amino formate construct is the toughening reason ; hydroxyl - terminated pu - prepolymer and pf react to produce chemical bond effect which participate cure ; carboxyl - terminated pu - prepolymer and pf form semi - ipn which make toughened pf occur maximum
（ 4 ）通過紅外光譜對pf / pu共混物分子結構進行的定性分析、以及掃描電鏡對沖擊斷面形貌進行的分析，可證明聚氨酯預聚物增韌酚醛樹脂的機理是：兩個體系都是由於高分子量的線形氨基甲酸酯結構而增韌；端羥基pu與pf在共固化中產生化學鍵效應，參與pf的固化；而端羧基pu則與pf形成半互穿網路而增韌。
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