Water tolerance and moisture resistance of wet method PA modified starch were higher than those of native and dipping method PA modified starch.
湿法植酸改性淀粉制得的膜的耐水性和阻湿性优于浸渍法植酸改性淀粉和原淀粉。
Heat ageing, natural ageing and water tolerance etc. tests are carried out to study and improve the ageing resistance of copper conductive adhesive.
将铜导电胶进行热老化、自然老化、耐水等试验,以研究其老化性能,并探求改善铜胶抗老化性能的途径。
Then the prescription is optimized by orthogonal method. Thus a sodium silicate composite coating with good water tolerance and strong adhesion is prepared.
然后利用正交法优选配方,制得耐水性良好、附着力强的水玻璃复合涂料。
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