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PP/PA6合金材料的结晶行为和亲水性 被引量:2

Crystallization Behavior and Hydrophilicity of PP / PA6 Composite
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摘要 通过非等温冷却实验研究PP/PA6合金的结晶过程,通过DSC研究Li Cl含量对PP/PA6合金中PP相结晶行为的影响,结果表明:随着Li Cl含量的增加,PP相的结晶温度先升高后降低。通过XRD分析,结果表明:Li Cl的加入可使PA6由半结晶向无定型转变,从而促进PP的β晶型的形成。另外,PP中加入少量亲水的PA6材料,可以明显改善PP材料的亲水性,PP-PA2.25的纯水接触角由PP的103°降低到了65°。 The crystallization behavior of PP/PA6 composite prepared by melt blending was analyzed by differential scanning calorimetry and X-ray diffraction. Nonisothermal experiments were used to evaluate the effect of LiCl on the crystallization process of polypropylene(PP) from molten state. The addition of LiC1 dramatically modified the nonisothermal crystallization behavior of the PP matrix, the crystallization temperature firstly increased and then decreased with the increase of LiC1. In addition, the hydrophilicity of PP was largely improved due to the introduction of hygroscopic PA6 and LiCl. The water contact angle of PP-PA 2. 25 decreased from 103° to 65° when compared with pure PP.
出处 《塑料》 CAS CSCD 北大核心 2015年第6期15-18,共4页 Plastics
关键词 聚丙烯 尼龙6 相容性 非等温结晶 亲水性 polypropylene PA6 compatibility nonisothermal crystallization hydrophilicity
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