2) polyvinyl formal
聚乙烯醇缩甲醛
1.
The polyvinyl formal was prepared via acetalation from polyvinyl alcohol and formaldehyde in water-solution under the condition of pH value was 1.
5~2的条件下,以聚乙烯醇和甲醛为原料,在水溶液中发生缩醛反应制备聚乙烯醇缩甲醛胶,然后向胶中添加适量的尿素和分散助剂PAAM/COB,经调配得到新型水溶性聚乙烯醇缩甲醛涂料。
2.
In accordance with the princiole that in acid media the condensation reaction of hydroxylaldehyde is inversible, a way is given for the regeneration of the gel formed in the process of preparing polyvinyl formal.
根据在酸性介质中羟醛缩合反应是可逆的原理,对聚乙烯醇缩甲醛的制备过程中出现的凝胶进行再生处理,减少了原料浪费。
3) polyvinyl formaldehyde
聚乙烯醇缩甲醛
1.
This paper introduced how to make a fast-drying emulsion adhesive based on polyvinyl formaldehyde.
介绍了一种以改性的聚乙烯醇缩甲醛为基料的强力快干型抗冻乳白胶。
4) poly(vinyl formal)
聚乙烯醇缩甲醛
1.
The nonionic poly(vinyl formal) hydrogels with different porosities were synthesized by adding pore-forming agents, their swelling/deswelling behaviors and mechanical properties were measured in order to evaluate the effects of porosity.
通过成孔剂法制备不同孔隙率的聚乙烯醇缩甲醛凝胶(PVFM),其具有对含水量变化快速响应的特性,研究其在吸水、脱水过程中孔隙率对体积、质量、力学性能变化的影响。
6) polyvinyl formal fiber
聚乙烯醇缩甲醛化纤维
补充资料：聚乙烯醇缩甲醛
| 聚乙烯醇缩甲醛 polyvinyl formal 见维纶。 |
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
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