摘要
将纳米TiO_2、稻壳粉、聚氯乙烯(PVC)和稳定剂等按一定比例混合,用挤出成型法制备PVC/稻壳粉木塑复合材料。考察纳米TiO_2添加量对PVC/稻壳粉木塑复合材料性能的影响。实验结果表明,随着纳米TiO_2含量的增加,木塑复合材料的力学性能、防水性能和热稳定性呈现先增加后降低的趋势,但木塑复合材料的表面颜色却随着纳米TiO_2含量的增加而逐渐变浅。当纳米TiO_2含量为1.00份时,木塑复合材料的综合性能最好,与未添加纳米TiO_2的木塑复合材料相比,其拉伸强度、冲击强度和弯曲强度分别提高了40.6%,62.2%和19.7%,8 d的吸水率从2.5%降低为1.6%,表面接触角从78.5°增加到82.1°,800℃时的残炭率从21.1%提高到29.5%。
Nano TiO2,rice husk powder,poly(vinyl chloride) (PVC) and stabilizer and so on were blended according to certainproportion to prepare PVC/rice husk powder wood plastic composites with the extrusion. The effects of nano TiO2 content on theproperties of the wood plastic composites were examined. The experimental results show that the mechanical properties,waterproofperformance and thermal stability of the wood plastic composites first increase then decrease,but surface colors become shallowgradually along with nano TiO2 content increasing. The wood plastic composite which the content of nano TiO2 is 1.00 phr has bestcomprehensive properties,compared with non-adding nano TiO2 wood plastic composite,the tensile strength,impact strength,andbending strength are increased by 40.6%,62.2% and 19.7% respectively,the water absorption rate for 8 days is reduced from 2.5%to 1.6%,the contact angle is increased from 78.5° to 82.1°,and the content of remaining carbon at 800℃ is increased from 21.1% to29.5%. The surface color of the wood plastic composites become shallow gradually along with nano TiO2 content increasing.
作者
王宣博
陈小丹
陈佳伟
刘玉涛
姚雪霞
Wang Xuanbo;Chen Xiaodan;Chen Jiawei;Liu Yutao;Yao Xuexia(College of Engineering, Nanjing Agricultural University, Jiangsu Key Laboratory for Intelligent Agricultural Equipment, Nanjing 210031, China)
出处
《工程塑料应用》
CAS
CSCD
北大核心
2016年第7期31-36,共6页
Engineering Plastics Application
基金
国家自然科学基金项目(41301261)
江苏省自然科学基金项目(BK20130680)
中国博士后基金项目(2015M571765)
关键词
纳米TIO2
稻壳
聚氯乙烯
力学性能
吸水性能
热性能
nano TiO2
rice husk
poly(vinyl chloride)
mechanical property
water absorption property
thermal property
