【摘要】：采用模壓成型制備了一系列聚氯乙烯(PVC)/氯化聚氯乙烯(CPVC)配比不同、無(wú)機(jī)剛性粒子含量不同的木塑復(fù)合材料。通過(guò)力學(xué)性能測(cè)試、熱變形溫度測(cè)試、掃描電子顯微鏡觀察等手段對(duì)上述木塑復(fù)合材料的耐熱性及力學(xué)性能進(jìn)行了研究。結(jié)果表明,CPVC和無(wú)機(jī)剛性粒子均顯著改善了PVC木塑復(fù)合材料的耐熱性和力學(xué)性能。與PVC木塑復(fù)合材料相比,當(dāng)PVC/CPVC配比為50/50,白云母或凹凸棒土的用量為3份時(shí),改性木塑復(fù)合材料的熱變形溫度分別提高了14.3℃和19.7℃,且力學(xué)性能較好。凹凸棒土對(duì)木塑復(fù)合材料的耐熱增強(qiáng)改性效果優(yōu)于白云母。
[Abstract]:A series of wood-plastic composites with different (PVC) / (CPVC) ratios and different contents of inorganic rigid particles were prepared by moulding. The heat resistance and mechanical properties of the wood-plastic composites were studied by means of mechanical property test, thermal deformation temperature test, scanning electron microscope observation and so on. The results showed that both CPVC and inorganic rigid particles significantly improved the heat resistance and mechanical properties of PVC wood-plastic composites. Compared with PVC wood-plastic composite, when the ratio of PVC/CPVC is 50 / 50 and the amount of Muscovite or attapulgite is 3 phr, the thermal deformation temperature of the modified wood-plastic composite is increased by 14.3 鈩，

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