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就通常的粘结剂来说,有有机、无机两种。有机的如乳胶、球氧树脂,甲基纤维素,聚乙烯醇等等。这些粘结剂都不能耐高温,一般在300℃左右就要挥发并燃烧,然后丧失粘结能力。处于高温状态使用的耐火纤维粘结剂必须是无机粘结剂。无机粘结剂以一些高温下不挥发、不燃烧的物质,如三氧化二铝、二氧化硅等细粉作骨料,加上一些能将骨料在高温及低温下都能结合在一起的物质做结合剂,再加上少量的促凝剂、活性剂组成。对于耐火纤维粘结剂的一般要求是:(1)具有良好的低温硬化性和粘结性、
The usual binder, organic, inorganic two. Organic such as latex, ball oxygen resin, methyl cellulose, polyvinyl alcohol and so on. These adhesives are not high temperature, usually about 300 ℃ will be volatile and burning, and then lose the bonding ability. The refractory fiber binder used at high temperatures must be an inorganic binder. Inorganic binder to some high temperature non-volatile, non-combustible material, such as alumina, silica and other fine powder as aggregate, together with some of the aggregate at high temperature and low temperature can be combined together Material to do the binding agent, plus a small amount of coagulant, active agent. The general requirements for refractory fiber binders are: (1) good low temperature hardenability and cohesion,