壳层组分对芯壳结构竹塑复合材料热解特性的影响

doi:10.19491/j.issn.1001-9278.2018.01.009

中国塑料 ›› 2018, Vol. 32 ›› Issue (01): 51-58.DOI: 10.19491/j.issn.1001-9278.2018.01.009

壳层组分对芯壳结构竹塑复合材料热解特性的影响

羡瑜^1，4，李海栋²，王翠翠³，王戈⁴，程海涛^4*

(1.山西农业大学林学院，山西太谷 030801；2.河南理工大学建筑与艺术设计学院，河南焦作 454000；
3.北京林业大学木质材料科学与应用教育部重点实验室，北京 100083；4.国际竹藤中心，北京 100102)

收稿日期:2017-08-20 修回日期:2017-09-25 出版日期:2018-01-26 发布日期:2018-01-17
基金资助:
国际竹藤中心基本科研业务费专项资金（1632016001）

Effect of Shell Composition on Pyrolysis Kinetics Characteristics of Core-shell Structured Bamboo Plastic Composites

Received:2017-08-20 Revised:2017-09-25 Online:2018-01-26 Published:2018-01-17

摘要/Abstract

摘要： 以高密度聚乙烯（PE-HD）/竹屑作为芯层材料，PE-HD、PE-HD/竹浆纤维、PE-HD/纳米碳酸钙、PE-HD/白泥分别作为壳层材料，熔融共挤制备了芯壳结构竹塑复合材料，讨论了不同升温速率对芯壳结构竹塑复合材料热解行为的影响，并引入Coats和Redferm模型和Flynn-Wall-Ozawa模型量化了芯壳结构竹塑复合材料的表观活化能。结果表明，壳层中加入白泥和纳米碳酸钙可以改善芯壳结构竹塑复合材料的热稳定性，加入竹浆纤维对其热稳定性略有影响；在壳层中分别添加10 %的竹浆纤维、纳米碳酸钙和白泥后，芯壳结构竹塑复合材料的表观活化能变化不显著。

Abstract: This paper reported an investigation on pyrolysis characteristics of core-shell structured bamboo-plastic composites (BPC) prepared by a co-extrusion processing method. These BPC were constituted by a core layer of high-density polyethylene (PE-HD)/bamboo residue fiber composite and four types of shells including pristine PE-HD/bamboo pulp fiber composite, PE-HD/nano-CaCO3 compound and PE-HD/white mud composite. The pyrolysis characteristics of BPC were evaluated by thermogravimetric analysis at different heating rates, and their pyrolysis kinetics was analyzed by Coats-Redferm‘s and Flynn-Wall-Ozawa‘s models. The results indicated that the thermal stability of BPC was improved in the presence of PE-HD/nano-CaCO3 and PE-HD/white mud shells, however, the formation of PE-HD/bamboo pulp fiber shell exhibited few effects on their thermal stability. Moreover, the apparent activation energy of BPC presented a slight change with addition of 10 wt % bamboo pulp fiber, nano-CaCO3 and white mud into their shell.

中图分类号:

TQ325.1+2

羡瑜李海栋王翠翠王戈程海涛. 壳层组分对芯壳结构竹塑复合材料热解特性的影响[J]. 中国塑料, 2018, 32(01): 51-58.

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壳层组分对芯壳结构竹塑复合材料热解特性的影响

Effect of Shell Composition on Pyrolysis Kinetics Characteristics of Core-shell Structured Bamboo Plastic Composites

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