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Phenolic resin - foam substance compositions and method for the preparation of phenol resin foam materials
Phenolic resin - foam substance compositions and method for the preparation of phenol resin foam materials
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机译:酚醛树脂-泡沫物质组合物及制备酚醛树脂泡沫材料的方法
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摘要
Phenolic foam products are fabricated from phenol-aldehyde resol; a blowing agent; a condensation catalyst; a cell control agent; and an allyl ether of methylol-substituted phenol wherein the said allyl ether is present in a range from 0.5 to 25 percent by weight of the phenol-aldehyde resol. The function of the allyl ether is to overcome the extreme friability of the phenolic foam system.
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