期刊论文

中文

广州化工

1001-9677

2018

46

4

39-42

10.3969/j.issn.1001-9677.2018.04.014

本校为第一机构

以玉米淀粉为原料,经双氧水氧化、环氧氯丙烷交联改性后以碱糊化制得环氧氯丙烷改性淀粉基胶黏剂.通过单因素实验及正交设计实验优化了环氧氯丙烷交联改性的实验条件.最佳工艺条件为:环氧氯丙烷用量为2%(相对于淀粉的质量分数)、反应温度为50 ℃、反应时间为4 h、交联反应体系的pH值为11.制备的胶黏剂的胶合强度可达4.4 kg/m2,耐水时间为10 h,交联度为1.2.环氧氯丙烷交联改性淀粉基胶黏剂的性能明显优于氧化淀粉胶黏剂.

The starch-based adhesive cross-linked with epichloropropane was prepared by oxidation of starch of hydrogen peroxide,cross-linked with epichlorohydrin, and gelatinization with alkali. The cross-linked conditions were optimized through single factor experiments and orthogonal design experiment. The optimum reaction conditions were as follows:epichlorohydrin was 2% (relative to the mass of starch),the reaction temperature was 50 ℃,the reaction time was 4 h with pH=11 of reaction mixtures. The average crosslinking degree of the adhesive prepared...