叙述了以聚乙烯醇为原料，经缩醛化后和硅溶胶制备有机—无机复合粘合剂。介绍了配方、制备程序和拉伸粘结强度的试验结果。
The paper introduces the formula, process and tensile strength of the organic-inorganic composite adhesive which is prepared by mixing acetalization of polyvinyl alcohol with silicasol.
探讨了聚乙烯醇缩醛的粘接强度的影响。
The effect of polyvinyl acetals on its adhesive strength was investigated.
研究表明甲苯二异氰酸酯对聚乙烯醇缩醛胶粘剂耐水性改性是可行的并且能提高胶粘剂的粘接强度。
The results of this paper have shown that it is successful for improvement on the water proof and adhesive strength of PVF with TDI.
综述了聚乙烯醇缩丁烯醛胶的制备原理和制备方法，并主要讨论了聚乙烯醇缩丁烯醛在国内外的应用进展情况。
This paper summarized to prepare the principle and method of poly(vinyl crotonal), as well as mainly discussed state-of-arts of poly(vinyl crotonal)at home and abroad.
此机理不同于只有1,2加成方式的聚乙烯醇缩饱和醛化反应。
This mechanism is different from that for the acetalization reaction of polyvinyl alcohol with saturated aldehydes, which has only 1, 2 addition.
并对作为增韧剂和增粘剂的聚乙烯醇缩醛的缩醛结构对其热稳定性的影响进行了分析。
And we also study the acetal structure and its influence of thermal stability of polyvinyl acetal which was used as toughening agent and tackifier.
实验结果表明，交联后的聚乙烯醇粘合剂性能优于聚乙烯醇缩醛粘合剂，而且无毒无害，是一种优良的环保材料。
Experimental results showed that the properties of crosslinked adhesive of PVA are superior than those of polyvinyl acetal adhesive. Further-more, it has innoxious to people, it is a excellent en...
讨论了聚乙烯醇缩甲醛胶、聚醋酸乙烯酯胶、脲醛胶、淀粉胶的改性途径，介绍了各改性产品的配方及其性能比较。
Ways to modify the gels of polyvinyl formal, polyvinyl acetate, urea-formaldehyde and amylum are plesented and formulae and alternate properties of various modified products introduced.
加成主要导致聚乙烯醇缩丁烯醛的交联。
Crosslinking in polyvinyl butenal was mainly resulted from the 1,4 addition.
加成主要导致聚乙烯醇缩丁烯醛的交联。
Crosslinking in polyvinyl butenal was mainly resulted from the 1,4 addition.
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