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化工新型材料  2018, Vol. 46 Issue (7): 262-265    
  开发与应用 本期目录 | 过刊浏览 | 高级检索 |
废弃硬质聚氨酯泡沫塑料填充增强丁腈橡胶的研究
陈晓松, 熊煦, 周慧, 马立波
常州工程职业技术学院,常州213164
Study on NBR filled and reinforced with waste rigid polyurethane foam
Chen Xiaosong, Xiong Xu, Zhou Hui, Ma Libo
Changzhou Vocational Institute of Engineering,Changzhou 213164;
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摘要 废弃硬质聚氨酯泡沫(WRPUF)用常温固相力化学反应粉碎活化为活性微粉(WRPUFP),再以四乙烯五胺(TEPA)为解交联剂,利用热-力解交联反应对WRPUFP进行表面改性。用表面改性的废弃硬质聚氨酯泡沫活性微粉(MWRPUFP)作为增强填料,以马来酸酐(MAH)为接枝单体、过氧化二异丙苯(DCP)为引发剂与丁腈橡胶(NBR)反应生成的丁腈橡胶接枝马来酸酐(NBR-g-MAH)为相容剂,通过模压法制备MWRPUFP填充增强NBR材料。考察了TEPA、MAH、DCP、MWRPUFP用量对MWRPUFP填充增强NBR材料性能的影响。结果表明:当 TEPA质量分数为5%(相对于MWRPUFP质量)、MAH用量为3.5份、DCP用量为0.75份、MWRPUFP用量为20份时,MWRPUFP填充增强NBR材料的性能最佳,其邵氏硬度为59,拉伸强度为8.61MPa,断裂伸长率为1723%,撕裂强度为28kN/m。MWRPUFP填充增强NBR材料撕裂断面的扫描电镜图表明,在热-力作用下生成的相容剂NBR-g-MAH可以改善MWRPUFP与NBR的相容性,从而提高MWRPUFP填充增强NBR材料的力学性能。
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陈晓松
熊煦
周慧
马立波
关键词:  废弃硬质聚氨酯泡沫塑料  丁腈橡胶  固相力化学反应  解交联反应  填充增强    
Abstract: By solid-phase mechanochemical reaction,waste rigid polyurethane foam (WRPUF) was pulverized to activated powder (WRPUFP) at normal temperature.WRPUFP was surface modified by heat-force retrocrosslinking reaction (MWRPUFP),using tetraethylene pentamine (TEPA) as retrocrosslinking agent.The reinforced NBR was prepared by compression molding,when MWRPUFP used as intensifier,NBR-g-MAH which was produced with maleic anhydride (MAH) and nitrile rubber (NBR) through the graft reaction under the initiation of dicumyl peroxide (DCP) used as compatibilizer.The effects of dosages of TEPA,MAH,DCP and MWRPUF to the reinforced NBR were investigated.The results showed that the reinforced NBR with better comprehensive property was obtained,when TEPA content was 5wt% (relative to MWRPUFP),the dosages of MAH,DCP and MWRPUF were 3.5phr,0.75phr and 20phr separately,i.e.the shore A hardness of reinforced NBR was 59,the tensile strength was 8.61MPa,the elongation at break was 1723%,and the tear strength was 28kN/m.The scanning electron microscopy (SEM) photos on the tear section of reinforced NBR showed that the generated NBR-g-MAH under the action of heat-force could improve the compatibility of MWRPUFP and NBR,so as to improve the mechanical property of NBR.
Key words:  waste rigid polyurethane foam    acrylonitrile butadiene rubber    solid-phase mechanochemical reaction    retrocrosslinking reaction    filling and reinforcing
收稿日期:  2017-03-31                出版日期:  2018-07-20      发布日期:  2018-08-07      期的出版日期:  2018-07-20
基金资助: 2016年江苏省大学生创新创业训练计划院级培育项目(CZYB2016007)
作者简介:  陈晓松(1975-),男,硕士,副教授,研究方向为高分子材料改性与高分子材料固体废弃物的回收利用。
引用本文:    
陈晓松, 熊煦, 周慧, 马立波. 废弃硬质聚氨酯泡沫塑料填充增强丁腈橡胶的研究[J]. 化工新型材料, 2018, 46(7): 262-265.
Chen Xiaosong, Xiong Xu, Zhou Hui, Ma Libo. Study on NBR filled and reinforced with waste rigid polyurethane foam. New Chemical Materials, 2018, 46(7): 262-265.
链接本文:  
http://www.hgxx.org/CN/  或          http://www.hgxx.org/CN/Y2018/V46/I7/262
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