Poly(vinyl chloride) composite emulsion resins modified by polyurethane

Xiaolei ZHANG ¹Mingwang PAN ²Shengnan XING ²Jingsheng LI³

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作者信息

1. Institute of Polymer Science & Engineering, Hebei University of Technology, Tianjin 300130, China;Hebei Institute of Energy, Shijiazhuang 050081, China
2. Institute of Polymer Science & Engineering, Hebei University of Technology, Tianjin 300130, China
3. College of Chemical & Pharmaceutical Engineering, Hebei University of Science & Technology, Shijiazhuang 050018, China
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Abstract

An ionomer-type of polyurethane (PU) emul-sion was prepared from toluene diisocyanate (TDI), polypropylene glycol (PPG) and dimethylol propionic acid (DMPA) following a self-emulsification process. The modified poly(vinyl chloride) (PVC) emulsion resin was obtained by in situ emulsion copolymerization using the PU as seeds in an autoclave. The effects of PU molecular weight on the mechanical properties and thermal stability of the PU/PVC materials were investigated. The composite latex particles and composite materials were determined and characterized using a laser particle size analyzer, transmission electron microscopy or scanning electron microscopy. The study results showed that the PU/PVC hybrid emulsion particles possess a core/shell structure. When the general mechanical properties of the composite materials increase, the thermal stabilities decrease a little. The tough fractures on the surface of the PU/PVC composite sample following impact are quite obvious.

Key words

polyurethane/poly(vinyl chloride)/emulsion resin/modifying

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基金项目

河北省自然科学基金(B2006000014)

Hebei Province Education Office Fund(2004420)

出版年

2008

中国化学前沿

高等教育出版社

中国化学前沿

ISSN：1673-3495

参考文献量6

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