文献类型：期刊文献

中文题名：改性聚磷酸铵/改性淀粉阻燃聚乳酸

英文题名：Flame Retarded Poly(lactic acid)Using Modified APP/Modified Starch

作者：王儒旭[1];张伟阳[1];程树军[1];陆冲[1]

机构：[1]华东理工大学材料科学与工程学院,上海200237

年份：2016

卷号：42

期号：3

起止页码：351

中文期刊名：华东理工大学学报（自然科学版）

外文期刊名：Journal of East China University of Science and Technology

收录：CSTPCD;;Scopus;北大核心:【北大核心2014】；CSCD:【CSCD2015_2016】；

语种：中文

中文关键词：聚乳酸;聚磷酸铵;淀粉;阻燃;共混改性;增韧

外文关键词：polylactic acid （PLA）; ammonium polyphosphate; starch; flame retardant; blending modification; toughening

摘要：以改性聚磷酸铵(MAPP)和改性淀粉(MST)分别作为酸源和碳源,以聚合物Jonctyl?ADR-4368(简称ADR)作为体系增容剂,通过共混及热压成型制备了阻燃聚乳酸(PLA)材料。采用极限氧指数(LOI)来表征共混物的阻燃性能,采用热重分析(TGA)表征共混物的热稳定性能,差示扫描量热仪(DSC)表征共混物的热学性能,扫描电镜(SEM)表征各样品以及刻蚀淀粉后样品的表面形貌,拉伸试验表征各样品的韧性以及强度。PLA复合材料的阻燃性能以及韧性相对聚乳酸有较大程度的提升,加入MAPP后复合材料热稳定性增加,加入聚合物ADR后体系相容性提高。
Using modified APP as acid source, modified starch as carbon source, and ADR as compatibilizer,flame retared poly（lactic acid） composites were prepared by melt blending and then hot compression molding. Limiting oxygen index （LOI） was used to characterize the flame retardant property of the composites. Thermogravimetric analysis （TGA） was employed to determine the thermal stability of the composites. Differential secanning calorimetry （DSC） was used to characterize thermal properties of the composites. The structures and morphology of composites before and after starch etching were observed by scanning electron microscope （SME）. The toughness and strength of composites were characterized by mechanical property tests. Compared with PLA, both the toughness and flammability of modified PLA composites were improved. Upon addition of MAPP and ADR, the thermal stability and the compatibility of composites were improved respectively.