摘要
研究线性低密度聚乙烯(LLDPE)与聚苯乙烯(PS)共混制备的塑料合金的性能并用不同制备条件的塑料合金与木纤维复合形成塑料合金/木纤维复合材料,研究该种复合材料的外观质量及物理力学性能。结果表明:不同共混比例与共混温度对制备的塑料合金熔体流动性、力学强度有较显著影响。塑料合金/木纤维复合材料的性能与塑料合金共混比例及共混温度有较强的相关性。2种塑料在共混比为50/50,共混温度为200℃时,形成的塑料合金与木纤维具有相对最好的相容性和最好的材料外观质量与力学性能。DMA试验表明:塑料合金/木纤维复合材料的耐热性明显优于相应的塑料合金。
The preparation and the properties of liner low density polyethylene （LLDPE）/polystyrene （PS） alloy were investigated. The composites of woodfiber and LLDPE/PS alloy in different blend ratios and blend temperatures were prepared and the appearance quality and the mechanical and physical properties of the composites were evaluated also. The results indicated that the melt flow properties and physical strength of alloy were different with different blend temperature and blend proportions. The properties of plastic alloy/woodfiber composites are relevant to the blend temperature and proportion of LLDPE and PS. The LLDPE/PS alloy of 50/50 blending at 200℃ has a good compatibility with woodfiber and appearance and physical properties of their composites are the best. The DMA data indicated that the thermal stability of plastic alloy/woodfiber composites is more excellent than correspondent plastic alloy.
出处
《林业科学》
EI
CAS
CSCD
北大核心
2006年第3期59-66,共8页
Scientia Silvae Sinicae
基金
引进国际先进林业科学技术"948"项目"农林纤维废料
废塑料混融制造新型复合材料技术"(2001-33)
