CAJ | 학술논문

采用一种氮丙啶交联剂对聚乙烯醇(PVA)进行交联,通过红外等测试表征研究交联剂用量对交联膜化学结构、力学性能、溶胀性及耐水性的影响,从而确定薄膜性能最优时交联剂的用量.当交联剂用量质量分数为3%时,其拉伸强度和断裂伸长率分别提高25.9%和38.1%,力学性能得到明显改善.将性能最优交联膜与纳米SiO_2复合,测试复合膜的力学性能,结果表明:其性能得到进一步提高.
채용일충담병정교련제대취을희순(PVA)진행교련,통과홍외등측시표정연구교련제용량대교련막화학결구、역학성능、용창성급내수성적영향,종이학정박막성능최우시교련제적용량.당교련제용량질량분수위3%시,기랍신강도화단렬신장솔분별제고25.9%화38.1%,역학성능득도명현개선.장성능최우교련막여납미SiO_2복합,측시복합막적역학성능,결과표명:기성능득도진일보제고.
A kind of aziridine crosslinker was used to crosslink with poly (vinyl alcohol) (PVA). The properties of the crosslinked PVA were investigated with the various contents of the crosslinker and the best content of aziridine crosslinker was fixed on. When the crosslinker was 3 wt% , its tensile strength and elongation at break increased 25. 9 % and 38. 1 % respectively,which were improved observably. Then SiO_2 nanoparticles were added to the croslinked PVA to prepare composite films, which enhanced the properties of the composite film further.