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首页> 美国卫生研究院文献>Polymers >Effect of Different Compatibilizers on Injection-Molded Green Fiber-Reinforced Polymers Based on Poly(lactic acid)-Maleinized Linseed Oil System and Sheep Wool
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Effect of Different Compatibilizers on Injection-Molded Green Fiber-Reinforced Polymers Based on Poly(lactic acid)-Maleinized Linseed Oil System and Sheep Wool

机译：不同增容剂对基于聚乳酸-马来酸亚麻籽油体系和绵羊毛的注塑绿色纤维增强聚合物的影响

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摘要

A method to modify polymers is that of introducing fibers in a matrix to produce a fiber-reinforced polymer (FRP). Consequently, the aim of this work was to study the compatibility effect of four coupling agents on wool FRP properties, using poly(lactic acid) plasticized with maleinized linseed oil as polymer matrix. The content of wool assessed was 1 phr. The compatibilizers were (3-(2-aminoethylamino)propyl)-trimethoxysilane, trimethoxy (2-(7-oxabicyclo (4.1.0)hept-3-yl) ethyl) silane, tris(2-methoxyethoxy)(vinyl) silane and titanium (IV) (triethanolaminate)isopropoxide. Initially, wool was modified with coupling agents in an acetone/water (50/50) solution. Mechanical properties were evaluated by tensile and flexural properties, hardness by Shore D measurement and impact resistance by Charpy’s energy. Differential scanning calorimetry, dynamic thermo-mechanical analysis, and thermogravimetric analysis were conducted to evaluate the interaction among components and the effect of the coupling agents on the thermal properties of the original material. Color, wettability and scanning electron microscopy were used to describe physical and microstructural properties. Modification of fibers allows achieving improved mechanical properties and changes the thermal properties of the FRPs slightly. Coupling agent treatment helps to formulate PLA–MLO and sheep wool materials and to improve their performance, thereby creating a broader spectrum of applications for PLA maintaining the bio-based character of the material.
机译：改性聚合物的方法是将纤维引入基质中以生产纤维增强的聚合物（FRP）。因此，这项工作的目的是使用马来化亚麻籽油增塑的聚乳酸作为聚合物基质，研究四种偶联剂对羊毛FRP性能的相容性影响。评估的羊毛含量为1 phr。相容剂是（3-（2-氨基乙基氨基）丙基）-三甲氧基硅烷，三甲氧基（2-（7-氧杂双环（4.1.0）庚-3-基）乙基）硅烷，三（2-甲氧基乙氧基）（乙烯基）硅烷和（IV）（三乙醇胺）异丙醇钛。最初，羊毛是在丙酮/水（50/50）溶液中用偶联剂改性的。通过拉伸和挠曲性能评估机械性能，通过肖氏D测量评估硬度，并通过夏比能量评估抗冲击性。进行了差示扫描量热法，动态热力学分析和热重分析，以评估组分之间的相互作用以及偶联剂对原始材料热性能的影响。使用颜色，润湿性和扫描电子显微镜来描述物理和微观结构特性。纤维的改性可以实现改善的机械性能，并稍微改变FRP的热性能。偶联剂处理有助于配制PLA-MLO和绵羊毛材料，并改善其性能，从而为PLA保持材料的生物基特性创造了广泛的应用范围。

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