[1]任强,亓云霞,宋艳,等.母料法制备LDPE/EVA/粘土纳米复合材料及其性能研究[J].常州大学学报(自然科学版),2016,(05):1-6.[doi:10.3969/j.issn.2095-0411.2016.05.001]
　REN Qiang,QI Yunxia,SONG Yan,et al.Study on the Preparation of LDPE/EVA/Clay Nanocomposites by Masterbatch Method and Structure-Property Relationship[J].Journal of Changzhou University(Natural Science Edition),2016,(05):1-6.[doi:10.3969/j.issn.2095-0411.2016.05.001]
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母料法制备LDPE/EVA/粘土纳米复合材料及其性能研究()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
期数:
2016年05期
页码:
1-6
栏目:
材料科学与工程
出版日期:
2016-09-30

文章信息/Info

Title:
Study on the Preparation of LDPE/EVA/Clay Nanocomposites by Masterbatch Method and Structure-Property Relationship
作者:
任强; 亓云霞; 宋艳; 吴盾; 汪称意; 李坚
常州大学 材料科学与工程学院,江苏 常州 213164
Author(s):
REN Qiang;  QI Yunxia;  SONG Yan;  WU Dun;  WANG Chenyi;  LI Jian
School of Material Science and Engineering, Changzhou University, Changzhou 213164, China
关键词:
母料法;  聚乙烯;  粘土;  纳米复合材料;  阻燃性能
Keywords:
masterbatch;  polyethylene;  clay;  nanocomposites;  flame retardance
分类号:
TQ 327.8
DOI:
10.3969/j.issn.2095-0411.2016.05.001
文献标志码:
A
摘要:
采用熔融插层工艺制备低密度聚乙烯(LDPE)/乙烯-醋酸乙烯酯共聚物(EVA)/粘土纳米复合材料,比较了母料法与一步共混法对粘土的分散状态和材料性能的影响。通过X射线衍射仪(XRD)和透射电镜(TEM)表征了粘土在基体中的分散状态。结果表明,母料法制备得到的纳米复合材料粘土片层已均匀剥离于基体中。呈剥离状的5%粘土更好地促进了材料燃烧过程中的成炭,形成的致密连续的炭层起到了很好地隔热隔氧效果,使材料的热释放速率峰值降低了54%。热失重分析表明,粘土的加入促进了体系成炭,提高了高温下的残炭量。母料法制备的LDPE/EVA/5%粘土纳米复合材料的弹性模量为324.98 MPa,比LDPE/EVA基体增加了45.8%。
Abstract:
Polyethylene clay nanocomposites were prepared from melt intercalation process. Influence of two kinds of preparation methods including masterbatch and one-step process on the dispersion state and properties of nanocomposites were compared. The dispersion state of the clay layers in matrix were evaluated using X-ray diffraction and transmission electron microscopy. The results showed that masterbatch method is favorable to exfoliation of clay layer in LDPE/EVA matrix. The homogeneous dispersion of clay layer in polymer matrix promotes the char formation greatly. The resulting compact and continuous char layer suppress the transfer of heat and oxygen effectively. The peak heat release rate(pHRR)of nanocomposites prepared by masterbatch method was decreased by 54% relative to LDPE/EVA matrix. Thermogravimetric analysis results indicate that clay can play a catalytic role on the promotion of char forming reactions and so increase the residual char. The elastic modulus of LDPE/EVA/5% Clay nanocomposite is 324.98 MPa, increased by 45.8% relative to LDPE/EVA matrix.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2016-03-21。基金项目:江苏省高校优势学科建设工程资助项目(苏学科办[2014]9); 江苏省产学研前瞻项目(BY2011124)。作者简介:任强(1977—),男,四川渠县人,博士,副教授,主要从事阻燃及多孔聚合物材料、涂料研究。
更新日期/Last Update: 2016-10-10