编号 lyqk011573

中文标题 竹纤维汽车内饰夹层结构轻量化复合材料性能

作者 李明鹏  李昊远  苑之童  梁国涛  王翠翠  程海涛 

作者单位 国际竹藤中心 竹藤科学与技术重点实验室 北京 100102

期刊名称 世界竹藤通讯 

年份 2024 

卷号 22

期号 5

栏目名称 学术园地 

中文摘要 “绿色化、轻量化、功能化”是汽车材料未来发展的主要方向。夹层结构复合材料由薄硬表层和缓冲芯层组成，具有高比强度和良好的保温隔声性能，已在汽车内饰中应用。以竹纤维增强聚丙烯/聚乳酸复合材料为原料，通过釜压发泡工艺制得发泡珠粒，研究饱和温度、压力和保压时间对其性能的影响，并制备聚丙烯发泡珠粒板材作为芯层，与竹纤维/聚丙烯复合板表层组合，比较不同竹纤维含量下的性能，探讨其在汽车内饰中的应用；并以三聚氰胺聚磷酸盐作为阻燃剂，研究其对复合材料性能的影响。结果表明，随着竹纤维含量增加，聚丙烯发泡珠粒夹层材料的弯曲模量相较于聚氨酯夹层材料最高提升了108.60%，滚筒剥离强度最大为20.13 (N·mm)/mm，导热系数约为0.040 W/(m·K)，吸声系数为0.177；加入三聚氰胺聚磷酸盐可延长燃烧时间，燃烧速度显著减小为13.5 mm/min。竹纤维汽车内饰夹层结构材料满足汽车内饰件轻量化的要求，有助于落实“以竹代塑”倡议，践行“双碳”理念，助力汽车领域绿色发展。

关键词 竹纤维  夹层结构  轻量化  汽车内饰件  以竹代塑 

基金项目 国家重点研发计划课题“竹纤维代塑复合产品加工关键技术开发与应用”(2023YFD2202102)。

英文标题 Performance of Lightweight Bamboo Fiber-Reinforced Sandwich Composites Applied in Automotive Interior

作者英文名 Li Mingpeng, Li Haoyuan, Yuan Zhitong, Liang Guotao, Wang Cuicui, Cheng Haitao

单位英文名 Key Laboratory of Bamboo and Rattan Science and Technology, International Centre for Bamboo and Rattan, Beijing 100102, China

英文摘要 Greenness, lightweight and functionality are the main development directions of automotive materials. Sandwich structure composites with high specific strength and good thermal and acoustic insulation properties are composed of a thin hard surface layer and a cushioning core layer, which have been applied in automotive interiors. With bamboo fiber reinforced polypropylene/poly(lactic acid) composites as raw materials, the paper studies the effects of saturation temperature, pressure and holding time on its performance using the kettle pressure foaming process to produce foamed beads, and polypropylene foamed beads sheets are prepared as core layer to be combined with bamboo fiber/polypropylene composite sheet surface layer. The performances of the composites with different fiber contents are compared to explore their application in automotive interiors. In addition, melamine polyphosphate is used as a flame retardant to study its effect on the performance of the composites. The results show that the flexural modulus of the sandwich composite material prepared with polypropylene foamed beads is enhanced by up to 108.60% compared to the polyurethane sandwich material as the bamboo fiber content increases. In the scenario, the maximum roller peel strength is 20.13 (N·mm)/mm, the thermal conductivity is about 0.040 W/(m·K), and the acoustic absorption coefficient is 0.177. The addition of melamine polyphosphate prolongs the combustion time, and the burning speed is significantly reduced to 13.5 mm/min. Bamboo fiber materials used in automotive interior sandwich structure can meet the requirements over lightweight automotive interior parts, which helps implement the initiative of “bamboo as a substitute for plastic”, practise the concept of “dual carbon”, and contributes to the green development of automotive industry.

英文关键词 bamboo fiber;sandwich structure;lightweight;automotive interior;bamboo as a substitute for plastic

起始页码 12

截止页码 21

作者简介 李明鹏，博生研究生，主要研究竹纤维复合材料制备。E-mail:limingpeng@icbr.ac.cn。

通讯作者介绍 程海涛，研究员，主要研究竹纤维复合材料加工与应用。E-mail:htcheng@icbr.ac.cn。

E-mail htcheng@icbr.ac.cn

DOI 10.12168/sjzttx.2024.08.28.001

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