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2567422869

木虫 (小有名气)

引用回帖:
7楼: Originally posted by 张会丹 at 2013-12-06 14:49:25
请问比例是质量比还是摩尔量比?还有就是能不能说下KH-550改性的原理呢?...

正常实验试剂添加量应该是质量比吧
11楼2014-07-29 09:21:02
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yumo32946

新虫 (小有名气)

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4楼: Originally posted by fengbin806 at 2012-08-13 13:52:53
KH-550 氨丙基三乙氧基硅烷 是一种活性很高的硅烷!在少量水中就很快水解,不需要加酸促进水解,而且丙酮一般不适宜用作偶联剂的稀释剂。
具体使用方法:将KH-550用乙醇和水稀释(水:乙醇:硅烷=8:72:20此比例为经 ...

我想问下为什么丙酮不适于做稀释剂?是会反应么?应该不是很容易反应的吧,求指点~
12楼2014-12-02 15:34:46
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瘦比南瓜1987

金虫 (小有名气)

引用回帖:
6楼: Originally posted by sssu at 2013-06-08 12:15:58
硅烷(20%).醇(72%).水(8%),然后用乙酸调PH4~5醇解3~4小时于80度下搅拌反应2小时即可。我做的事KH570也做过550的,效果还行不过硅烷跟凹土的比例是最重要的,要不然改性效果不会很好。我做570的时候凹土一硅烷的 ...

你好,请问KH570水解的条件怎么控制啊?
13楼2014-12-08 17:19:47
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