氰化溫度 的英文怎麼說
中文拼音 [huàwēndù]
氰化溫度
英文
cyaniding temperature-
The title mid - etherified melamine - formaldehyde resin was synthesized in two steps and used as a curing agent of water borne paint, the best reaction conditions were investigsted, in ferms of the influence of temperature, time and catalyst
摘要採用兩步法合成了用於塗料交聯劑的甲醚化三聚氰胺樹酯，考察了溫度、時間、催化利等因素對交聯劑中不同組分含量的影響。Abstract : in this paper, a imidazole - salt was synthsised and was used with a polyphenol compound to modify the dicyandiamide curing epoxy resin system
文摘:本文針對雙氰胺固化環氧樹脂時的固化溫度高，固化產物耐濕熱性差的缺點，利用自行合成的咪唑鹽和多羥基酚類化合物，對雙氰胺固化體系進行了改進。The influence of catalyst on the copolymerization of epoxy and cyanate was investigated, and the mechanism of their copolymerization was discussed. the catalyst can obviously accelerate the curing of the resin to decrease the curing temperature. the three kinds of reactions ( cyclotrimerization, co - reaction and polyetherification ) in their copolymerization are not simultneous and independent to each other. in the lack of cyanate functional group, the main structures are oxazoine and polyether structure in the cured resin, and the triazine ring structure is of miner importance
研究了催化劑對環氧樹脂與氰酸酯樹脂的共聚固化反應行為的影響，並初步探索氰酸酯/環氧固化的反應歷程.研究表明，催化劑能明顯地促進其固化反應，降低固化溫度，縮短固化時間；氰酸酯與環氧共聚反應歷程是首先氰酸酯三聚反應生成三嗪環結構，然後三嗪環開環與環氧共聚反應，最後是未能參與共聚反應的環氧官能團在唑啉結構和三嗪環的催化下發生聚醚化反應；在氰酸酯官能團欠量的條件下，固化樹脂中主要是唑啉和聚醚結構，而三嗪環結構的含量很少The curing conditions were studied and the result indicated that the product showed a good storage, decreased the curing temperature, improved adhesion and brittleness, with an excellent film performance. expecially the adadhesion, flexibility and chemicol resistance
結果表明，合成的交聯劑貯存性能良好，醚化三聚氰胺樹酯作為交聯利加入到丙烯酸環氧樹酯中，可以明顯降低固化溫度且改善原有塗膜的脆性，成膜性能好，尤其是具有優良的附著力、柔韌性和耐化學品性。Cyanation of aryl halides is widely used in the synthesis of liquid crystals, but its traditional heating reactions require long time and high temperature
摘要鹵代芳烴的氰化反應在液晶單體合成中廣泛應用，但傳統的加熱方法反應時間長、溫度高。分享友人