Fabrication of a hybrid from metal organic framework and sepiolite (ZIF-8@SEP) for reducing the fire hazards in thermoplastic polyurethane

被引：31

作者：

Li, Hefu ^{[1
]}

Meng, Dan ^{[1
]}

Qi, Peng ^{[1
]}

Sun, Jun ^{[1
]}

Li, Hongfei ^{[1
]}

Gu, Xiaoyu ^{[1
]}

Zhang, Sheng ^{[1
]}

机构：

[1] Beijing Univ Chem Technol, State Key Lab Organ Inorgan Composites, Beijing 100029, Peoples R China

来源：

APPLIED CLAY SCIENCE | 2022年 / 216卷

基金：

中国国家自然科学基金;

关键词：

Flame retardancy; Sepiolite; Thermoplastic polyurethane; Smoke suppression; INTUMESCENT FLAME-RETARDANT; MECHANICAL-PROPERTIES; THERMAL-DEGRADATION; WATER RESISTANCE; COMPOSITES; SAFETY; GRAPHENE; NANOCOMPOSITES; ENHANCEMENT; NANOSHEETS;

D O I：

10.1016/j.clay.2021.106376

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Aluminum hypophosphite (AHP) is an effective flame retardant to thermoplastic polyurethane (TPU), but it also results in increase on smoke release caused by the presence of phosphorus groups. In this work, a novel synergistic flame retardant was fabricated from metal organic framework (ZIF-8) and sepiolite (SEP). For the compsosite of TPU/8.0AHP/1.0ZIF-8@SEP, limiting oxygen index (LOI) reached 27.5% and it satisfied the UL-94 V-0 grade. The heat release rate and the total heat release decreased by 78.9% and 39.1% compared with the control TPU respectively. The increased smoke production caused by AHP was partly adsorbed by ZIF-8@SEP, therefore, the sample of TPU/8.0AHP/1.0ZIF-8@SEP showed the lowest smoke release in cone calorimeter test. Unsimilar as other flame retardant, the using of 8.0AHP/1.0 ZIF-8@SEP just brought less than 2.0% loss on tensile strength and 7.8% drop on the elongation at break of TPU. Consequently, the ZIF-8@SEP was documented as excellent synergistic flame retardant for TPU and it brought limited damage on mechanical performance.

引用

页数：11

共 57 条

[1] Synthesis and characterization of conductive copper-based metal-organic framework/graphene-like composites [J].