文献类型：期刊文献

英文题名：Properties of polylactic acid/gelatin/acetyl tributyl citrate blend materials

作者：He, Ruhui Tao, Yao Luo, Zhu Yang, Le Liao, Jingshun Xu, Mengxia Yang, Shenglong Lin, Yechun

第一作者：He, Ruhui

通信作者：Luo, Z[1];Lin, YC[2]

机构：[1]Guizhou Univ, Coll Mat & Met, Guiyang 550025, Peoples R China;[2]Guizhou Inst Technol, Sch Mat & Energy Engn, Guiyang, Peoples R China;[3]Guizhou Acad Tobacco Sci, Upland Flue Cured Tobacco Qual & Ecol Key Lab Chin, Guiyang 550081, Guizhou, Peoples R China

第一机构：Guizhou Univ, Coll Mat & Met, Guiyang 550025, Peoples R China

通信机构：corresponding author), Guizhou Univ, Coll Mat & Met, Guiyang 550025, Peoples R China;corresponding author), Guizhou Acad Tobacco Sci, Upland Flue Cured Tobacco Qual & Ecol Key Lab Chin, Guiyang 550081, Guizhou, Peoples R China.

年份：2024

外文期刊名：JOURNAL OF APPLIED POLYMER SCIENCE

收录：;EI(收录号：20241916051052);Scopus(收录号：2-s2.0-85192242423);WOS:【SCI-EXPANDED(收录号:WOS:001214874700001)】；

基金：This work was supported by the Guizhou Academy of Tobacco Sciences of Guizhou Province (2022521300640117).

语种：英文

外文关键词：blends; copolymers; degradation; grafting; mechanical properties

摘要：The inherent brittleness and high cost of polylactic acid (PLA) hinder its further application. Developing low-cost, flexible, and biodegradable gelatin (GEL)-modified PLA is a way to broaden the application prospects of PLA applications. Acetyl tributyl citrate (ATBC) was added to overcome the process difficulty of PLA/GEL melt blending and toughening the blends. Maleic anhydride (MAH) grafted PLA (PLA-g-MAH) was prepared to improve the compatibility of the PLA/GEL/ATBC. Because of the interface, physical and chemical interaction induced by PLA-g-MAH, the compatibility among PLA, GEL, and ATBC was enhanced, which significantly improved the plasticizing efficiency of ATBC. Results showed that the elongation at break of the blends can be improved by 491%, 68 times higher than that of pristine PLA. Moreover, the modified blends did not break under the conditions of notch impact, which exhibited excellent toughness. The blends possessed a high degradation rate owing to the hydrophilic gelatin and PLA-g-MAH, significantly accelerated the degradation process of PLA. The prepared PLA/GEL/ATBC/PLA-g-MAH biomass blended plastics exhibited good comprehensive performance, with true sustainability and environmental friendliness. Highly plastic and rapidly degradable all-biomass polylactic acid/gelatin/acetyl tributyl citrate blends were prepared by melt blending. image