Combination of fumed silica with carbon black for simultaneously improving the thermal stability, flame retardancy and mechanical properties of polyethylene

被引：34

作者：

Gong, Jiang ^{[1
,2
]}

Niu, Ran ^{[1
,2
]}

Tian, Nana ^{[1
]}

Chen, Xuecheng ^{[1
,3
]}

Wen, Xin ^{[1
]}

Liu, Jie ^{[1
]}

Sun, Zhaoyan ^{[1
]}

Mijowska, Ewa ^{[3
]}

Tang, Tao ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[3] West Pomeranian Univ Technol, Inst Chem & Environm Engn, PL-70322 Szczecin, Poland

来源：

POLYMER | 2014年 / 55卷 / 13期

基金：

中国国家自然科学基金;

关键词：

Fumed silica; Carbon black; Polyethylene nanocomposite; FLAMMABILITY PROPERTIES; POLYMER NANOCOMPOSITES; FIRE RETARDANCY; NANOTUBE NANOCOMPOSITES; CATALYZING CARBONIZATION; POLYPROPYLENE; CLAY; COMPOSITES; NI2O3; MONTMORILLONITE;

D O I：

10.1016/j.polymer.2014.05.006

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The combination of fumed silica (SiO2) with carbon black (CB) for improving thermal stability, flame retardancy and mechanical properties of linear low density polyethylene (LLDPE) was investigated. The temperature at the maximum weight loss rate of LLDPE was dramatically increased by 92 degrees C, and the peak value of heat release rate measured by cone calorimeter was significantly reduced by 80.7%. The improved thermal stability and flame retardancy of LLDPE were partially attributed to the formation of a percolated network structure in LLDPE matrix, and partially to the accelerated oxidation crosslinking reaction of LLDPE or other radicals by CB and SiO2. More importantly, although both SiO2 and CB were used without any pre-treatment, ternary LLDPE nanocomposites showed much higher mechanical properties compared to those of neat LLDPE. This was ascribed to good dispersions of two kinds of nanoparticles and strorig matrix-nanoparticle interfacial interactions with LLDPE matrix. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：2998 / 3007

页数：10

共 53 条

[1] SURFACE INTERACTIONS OF DIMETHYLSILOXY GROUP-MODIFIED FUMED SILICA [J].