National Engineering Research Center for Compound Modified Polymer Materials

Guiyang, China

National Engineering Research Center for Compound Modified Polymer Materials

Guiyang, China
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Liu X.,Huaqiao University | Liu X.,National Engineering Research Center for Compound Modified Polymer Materials | Xu L.,National Engineering Research Center for Compound Modified Polymer Materials | Ji W.,Huaqiao University | And 2 more authors.
Gongneng Cailiao/Journal of Functional Materials | Year: 2016

The authors studied the influences of Halogen-free flame retardant to elastic ethylene-vinyl acetate (EVA) foaming material, especially its flame retardant properties. Three types of flame retardants were investigated: magnesium hydroxide (MH), aluminum hydroxide (ATH), and red phosphorus. The results showed that, individually, each of the flame retardant improved the flame retardant properties of EVA foaming material, to various degrees.However, none of the flame retardant by itself provided adequate improvement. On the other hand, by compounding MH, ATH and red phosphorus together, the flame retardant properties were improved significantly. The best improvement was achieved with the following combination: MH 32.1%, ATH 10.7% and red phosphorus 5%. The corresponding properties of the resulting EVA foaming material were: coefficient of thermal conductivity: 0.079 W/(m·K); the limit oxygen index (LOI): 34.5%; the vertical burning level:V-O; the horizontal burning level: HB. In summary, the resulting EVA foaming material meets the burning level requirements B1 for insulation materials, while at the same time resolved the brittleness issue of EVA foaming materials. © 2016, Chongqing Functional Materials Periodical Press Co. Ltd. All right reserved.


Xu G.-M.,National Engineering Research Center for Compound Modified Polymer Materials | Luo Z.,National Engineering Research Center for Compound Modified Polymer Materials | Ji Y.-B.,National Engineering Research Center for Compound Modified Polymer Materials | Yang Z.,National Engineering Research Center for Compound Modified Polymer Materials | And 2 more authors.
Gongneng Cailiao/Journal of Functional Materials | Year: 2012

Nano-TiO2/PVC paste composition films, which were prepared by ATBC, PVC paste resin and nano-TiO2, were studied in the irradiation condition of UV light. GPC, SEM, FT-IR and other special analyses were used to characterize the films. The results indicate that the degradation efficiency of nano-TiO2/PVC composition films is increased about 128.43% GPC test results indicate that after 720 h irradiation on the films, the Mn and Mw decrease 24.75% and 17.7% respectively, the surface morphology of nano-TiO2/PVC composition films shows many cracks and some cracking to pieces.

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