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首页> 外文期刊>Journal of Applied Polymer Science >Solvents effect in horseradish peroxidase catalyzed modification of UHMWPE fiber
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Solvents effect in horseradish peroxidase catalyzed modification of UHMWPE fiber

机译：辣根过氧化物酶催化UHMWPE纤维改性的溶剂作用

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摘要

Graft copolymerization of acrylamide onto ultrahigh molecular weight polyethylene (UHMWPE) using horseradish peroxidase as catalyst was performed in different reaction solution to study the solvent effect. The factors affecting the grafting effect such as the solvents composition, initiator, reaction temperature, and reaction time were investigated. The grafted UHMWPE fiber surface was characterized by IR spectrum, scanning electron microscopy, thermal analysis, contact angle measurement, and single fiber pull out test. Polar groups such as -CO and -NH2 are approved to appear on the surface after treatment. The contact angle with water decreased from 85 to 50, indicating the wettability of the fiber has been increased. The surface of the grafted fiber became rougher and its adhesion to resin increased significantly, and hence is expected to produce reinforced plastics with resin. It was also found that the grafting effect was higher in dioxane than in other solvents used and the initiator substituted by electron donating group facilitates the grafting reaction. And the optimum reaction condition was determined to be reacting in 40% (v/v) dioxane solution at 30 degrees C for 2 h. (c) 2006 Wiley Periodicals, Inc.
机译：在不同的反应溶液中，以辣根过氧化物酶为催化剂，将丙烯酰胺接枝到超高分子量聚乙烯（UHMWPE）上，研究了溶剂的作用。研究了影响接枝效果的因素，如溶剂组成，引发剂，反应温度和反应时间。通过红外光谱，扫描电子显微镜，热分析，接触角测量和单纤维拉出试验对接枝的UHMWPE纤维表面进行了表征。极性基团（例如-CO和-NH2）被批准在处理后出现在表面上。与水的接触角从85降低到50，表明纤维的润湿性已经提高。接枝纤维的表面变得更粗糙，并且其与树脂的粘合力显着提高，因此有望用树脂生产增强塑料。还发现在二恶烷中的接枝作用比在其他使用的溶剂中更高，并且被给电子基团取代的引发剂促进了接枝反应。并确定最佳反应条件为在40％（v / v）二恶烷溶液中在30摄氏度下反应2小时。 （c）2006年Wiley Periodicals，Inc.

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