CAJ | 학술논문

对凹凸棒土(AT)进行有机改性后,采用熔融复合法制备了AT的质量分数为1wt%、3wt%、5w%的聚乳酸/凹凸棒土纳米复合材料(PLA/OAT-x),对复合材料进行红外、SEM、DSC等表征.SEM结果表明,凹凸棒土粒子在复合材料中实现了均匀稳定分散,通过对复合材料的综合热性能分析和力学性能分析,PLA/OAT-3复合材料的拉伸强度、杨氏模量比纯PLA分别增加78.8%和119.3%.同时.复合材料的溶液降解性能也明显加快.
대요철봉토(AT)진행유궤개성후,채용용융복합법제비료AT적질량분수위1wt%、3wt%、5w%적취유산/요철봉토납미복합재료(PLA/OAT-x),대복합재료진행홍외、SEM、DSC등표정.SEM결과표명,요철봉토입자재복합재료중실현료균균은정분산,통과대복합재료적종합열성능분석화역학성능분석,PLA/OAT-3복합재료적랍신강도、양씨모량비순PLA분별증가78.8%화119.3%.동시.복합재료적용액강해성능야명현가쾌.
Organic-attapulgite (OAT) was obtained by pretreating attapulgite, then the polylactide acid (PLA)/OAT nanocomposie was prepared by melt polymerization. The nanocompositc was characterized by using infrared absorption spectroscopy (IR), scanning electronic microscope (SEM) and DSC, the mechanical and degradable capability of the nanocomposie was measured. Results show equably uniform dispersion and good interracial compatibility between PLA and OAT. Compared with pure PLA, the tensile strength and Young's modulus of the PLA/OAT-3 arc respectively improved by 78.8% and 119.3%. It also shows that the degradation capability of PLA/OAT-x is obviously speeded up.