成核剂对共聚甲醛MC90结晶与力学性能的影响OACSTPCD
Effects of Nucleator on Crystallizing and Mechanical Property of POM
利用差示扫描量热仪、偏光显微镜和万能材料试验机等研究了不同成核剂用量对聚甲醛MC90的结晶行为和力学性能的影响。结果表明,成核剂的加入可有效减小POM的球晶尺寸,提高POM的结晶温度和缺口冲击强度。当成核剂添加量为0．8%时,最大结晶温度由139．2℃提高到143．3℃,球晶平均尺寸约60μm,为未加成核剂的POM 球晶尺寸的1/2,缺口冲击强度由5．5kJ·m-2增加到6．1kJ·m-2。
Effects of the different dosage of nucleator on crystallizing and mechanical property of POM were stud-ied by means of differential scanning calorimetry,polarizing microscopy and universal material testing machine. The results indicated that nucleators effectively decreased spherocrystal size of POM. And the nucleators could improve crystallization temperature and notched impact strength. When the addition amount was 0. 8%,it made crystalliza-tion peak…查看全部>>
杨玮婧;方伟;胡琳;李丽英
神华宁夏煤业集团煤制油化工 研发中心，宁夏银川750411神华宁夏煤业集团煤制油化工 研发中心，宁夏银川750411神华宁夏煤业集团煤制油化工 研发中心，宁夏银川750411神华宁夏煤业集团煤制油化工 研发中心，宁夏银川750411
化学化工
聚甲醛成核剂结晶力学性能
polyoxymethylenenucleatorcrystallizationmechanical property
《合成材料老化与应用》 2016 (6)
29-32,4
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