Bio-based Mg(OH)2@M-Phyt: improving the flame-retardant and mechanical properties of flexible poly(vinyl chloride)

被引：32

作者：

Meng, Weihua ^{[1
]}

Wu, Weihong ^{[2
]}

Zhang, Weiwei ^{[1
]}

Cheng, Luyao ^{[1
]}

Han, Xiangzhuo ^{[1
]}

Xu, Jianzhong ^{[1
]}

Qu, Hongqiang ^{[1
]}

机构：

[1] Hebei Univ, Coll Chem & Environm Sci, Key Lab Analyt Sci & Technol Hebei Prov, Flame Retardant Mat & Proc Technol Engn Technol R, Baoding, Peoples R China

[2] Agr Univ Hebei, Coll Sci, Baoding, Peoples R China

来源：

POLYMER INTERNATIONAL | 2019年 / 68卷 / 10期

关键词：

MH; phytate salt; flame retardant; poly(vinyl chloride); PHYTIC ACID; THERMAL-DEGRADATION; MAGNESIUM-HYDROXIDE; PHYTATE; COMPLEX; BRUCITE; NANOCOMPOSITES; COMPOSITES; BEHAVIOR; FABRICS;

D O I：

10.1002/pi.5885

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Two novelty bio-based multifunctional metallic phytate coated (M-Phyt, M equivalent to Cu, Zn) Mg(OH)(2) (MH@M-Phyt) were designed and incorporated into flexible poly(vinyl chloride) (PVC). MH@M-Phyt was incorporated into PVC materials in a powder form. The morphology of the interface between MH and M-Phyt and their binding states were characterized by TEM and X-ray photoelectron spectroscopy (XPS), respectively. The TEM images of MH@M-Phyt indicated that M-Phyt was successfully coated on the MH surface. Additionally, from the XPS spectra M-Phyt and MH were connected by Mg-O-P bonds. The flame retardancy and mechanical properties of the PVC composites were investigated through the limiting oxygen index, cone calorimetry and mechanical tests. The char residues were analyzed by SEM. The results revealed that the MH@M-Phyt powder functioned well in PVC, with a flame retardancy, smoke density, tensile strength and elongation at break better than those of PVC/MH. With 10 phr loading, the peak heat release rate of PVC/MH@Zn-Phyt and PVC/MH@Cu-Phyt decreased by 33.5% and 24.6%, respectively, benefitting from the formation of firmer and denser char layers on the char residues. (c) 2019 Society of Chemical Industry

引用

页码：1759 / 1766

页数：8

共 33 条

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