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首页> 外文期刊>Journal of Applied Polymer Science >Composites based on eucalyptus tar pitch/castor oil polyurethane and short sisal fibers
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Composites based on eucalyptus tar pitch/castor oil polyurethane and short sisal fibers

机译：基于桉木焦油沥青/蓖麻油聚氨酯和短剑麻纤维的复合材料

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摘要

Polymeric materials are being developed with renewable resources to promote industrial progress with environmentally friendly technologies. For this reason, polyurethane samples were prepared with 4,4'-diphenyl-methane diisocyanate (NCO/OH 1), eucalyptus tar pitch (biopitch), castor oil as a polyol, and dibutyltin dilaurate as a catalyst. These materials were reinforced with different contents of short sisal fibers (0, 2.5, 5.0, 7.5, and 10.0%) and were prepared by resin-transfer molding. The composites were characterized by IR absorption spectroscopy, thermal analysis (thermogravimetry and differential scanning calorimetry), impact resistance, scanning electron microscopy, and water absorption resistance. These materials showed hydrophobic characteristics, despite the addition of sisal fibers. (C) 2003 Wiley Periodicals, Inc. [References: 11]
机译：正在开发具有可再生资源的聚合物材料，以利用环保技术促进工业进步。因此，用4,4'-二苯基甲烷二异氰酸酯（NCO / OH 1），桉油沥青沥青（生物沥青），蓖麻油作为多元醇和二月桂酸二丁锡作为催化剂制备聚氨酯样品。这些材料用不同含量的短剑麻纤维（0％，2.5％，5.0％，7.5％和10.0％）增强，并通过树脂传递模塑法制备。通过红外吸收光谱，热分析（热重分析和差示扫描量热法），抗冲击性，扫描电子显微镜和吸水率来表征复合材料。尽管增加了剑麻纤维，这些材料仍显示出疏水特性。 （C）2003 Wiley Periodicals，Inc. [参考：11]

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