聚丙烯
结晶
材料科学
侧链
极限抗拉强度
延伸率
苯
化学工程
化学
复合材料
有机化学
聚合物
工程类
作者
B. Liu,Lin Zou,Xin Qian,Ming‐Je Tang,Bo Chi,Xin Yang,Wei Jiao,Mu‐Hua Huang
出处
期刊:ACS applied polymer materials
[American Chemical Society]
日期:2023-10-31
卷期号:5 (11): 9681-9689
标识
DOI:10.1021/acsapm.3c02342
摘要
N,N′,N″-tripivaloyl-1,3,5-triaminobenzene (XT386) has been proven to be a highly efficient nucleating agent (NA) for polypropylene (PP), though it remains relatively expensive, which hinders its broader adoption. Herein, a methyl addition to benzene and a side-chain engineering strategy on XT386 led to the discovery of N,N′,N″-triacetyl-1,3,5-triaminotoluene (1a) as a very efficient NA for PP. It could raise the crystallization temperature (Tc) of iPP by 10.0 °C at a content not exceeding 1 wt %, reduce haze by 12.3, and increase tensile strength by 4.9 MPa. Refinement of PXRD data revealed that 1a has a c-axis size (∼6.5 Å) similar to PP, which has the ability to form epitaxial matching. Considering that 1a could be made from retired 2,4,6-trinitrotoluene (TNT) by a simple and green procedure of hydrogenation followed by N,N′,N″-triacylation, it will be a very promising NA for PP with good cost performance in the near future.
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