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[1]王世超,曹宇,张军.TiO2表面接枝偶联剂对高密度聚乙烯降温性能的影响[J].南京工业大学学报(自然科学版),2016,38(01):7-12.[doi:10.3969/j.issn.1671-7627.2016.01.002]
 WANG Shichao,CAO Yu,ZHANG Jun.Effects of titanium dioxide grafted by coupling agent on cool property of high density polyethylene[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2016,38(01):7-12.[doi:10.3969/j.issn.1671-7627.2016.01.002]
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TiO2表面接枝偶联剂对高密度聚乙烯降温性能的影响()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
38
期数:
2016年01期
页码:
7-12
栏目:
出版日期:
2016-01-10

文章信息/Info

Title:
Effects of titanium dioxide grafted by coupling agent on cool property of high density polyethylene
文章编号:
1671-7627(2016)01-0007-06
作者:
王世超曹宇张军
南京工业大学 材料科学与工程学院,江苏 南京 210009
Author(s):
WANG ShichaoCAO YuZHANG Jun
College of Materials Science and Engineering,Nangjing Tech University,Nanjing 210009,China
关键词:
高密度聚乙烯 表面改性 TiO2 降温材料
Keywords:
high density polyethylene surface modification titanium dioxide(TiO2) cool materials
分类号:
TQ325.1+2
DOI:
10.3969/j.issn.1671-7627.2016.01.002
文献标志码:
A
摘要:
通过化学改性的方法利用硅烷偶联剂γ-(甲基丙烯酰氧)丙基三甲氧基硅烷(KH570)对TiO2粉体进行表面改性,并通过傅里叶变换红外光谱(FT-IR)、差示扫描量热法(DSC)、力学性能分析、紫外-可见-红外分光光度计(UV-vis-NIR)、温度测试等方法考察改性前后TiO2对高密度聚乙烯(HDPE)的结晶行为、力学性能、太阳能反射率以及实际降温效果的影响。结果表明:KH570能成功地以共价键的形式接枝到TiO2表面; KH570有利于增进TiO2表面和HDPE表面之间的界面作用力; 与未改性TiO2相比,改性TiO2有利于提高材料的伸长率和屈服强度; TiO2的加入能大幅度提高样品在可见光和近红外光部分的反射率; 改性TiO2加入HDPE基体后具有最好的降温效果。
Abstract:
Titanium dioxide(TiO2)was modified by γ-methacryloxypropyltrimethoxy silane(KH570),and the modified TiO2 was added into high density polyethylene(HDPE)matrix to prepare HDPE/TiO2 composite.The properties of HDPE and HDPE/TiO2 composites were evaluated by Fourier transform infrared reflectance(FT-IR),differential scanning calorimetry(DSC),mechanic property,ultraviolet-visible-near infrared spectroscopy(UV-vis-NIR), and temperate test.It was found that KH570 could be grated on TiO2 surface by the covalent bond; the interface between TiO2 and HDPE was improved by surface modification.Compared with bare TiO2,the surface modification could improve the mechanical properties of HDPE,such as yield strength and elongation at break.At the presence of TiO2,solar reflectance of HDPE was improved,and HDPE/TiO2 with surface modification had the best cool property from the temperature test.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2014-09-01
基金项目:江苏高校优势学科建设工程
作者简介:王世超(1987—),男,四川眉山人,博士,主要研究方向为高分子材料的改性及结晶; 张军(联系人),教授,E-mail:zhangjun@njtech.edu.cn.
引用本文:王世超,曹宇,张军.TiO2表面接枝偶联剂对高密度聚乙烯降温性能的影响[J].南京工业大学学报(自然科学版),2016,38(1):7-12..
更新日期/Last Update: 2016-01-20