通过化学改性，甲壳素和甲壳胺可以获得更多的性能。
By chemical modification, chitin and chitosan could gain more useful properties.
用本体聚合的方法，通过化学改性，使低分子二聚酸聚酰胺树脂的性能得到大幅度提高。
The properties of low molecule dimeric dibasic acid polyamide resin were improved by chemical modified in mass polymerization.
棉纤维通过化学改性和交联作用，增加棉纤维与活性染料的反应能力，达到增深和提高染色牢度的目的。
The reactivity of cotton fibers with reactive dye is enhanced by chemical modification and crosslinking, and the depth of shade and color-fastness are improved.
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