• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Applied Polymer Science >BLENDS OF POLY(BUTYLENE TEREPHTHALATE) WITH CO[POLY(ETHYLENE TEREPHTHALATE-P-OXYBENZOATE)] - CRYSTALLIZATION BEHAVIORS
【24h】

BLENDS OF POLY(BUTYLENE TEREPHTHALATE) WITH CO[POLY(ETHYLENE TEREPHTHALATE-P-OXYBENZOATE)] - CRYSTALLIZATION BEHAVIORS

机译：聚（对苯二甲酸丁二醇酯）与[聚（对苯二甲酸乙二酯-对羟基苯甲酸酯）]的共混物-结晶行为

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Polyblends of poly(butylene terephthalate) (PBT) with four different types of co[poly(ethylene terephthalate-p-oxybenzoate)] copolyester, designated as P28, P46, P64, and P82, were prepared by melt-blending. The crystallization behaviors of the blends were then studied by differential scanning calorimetry and polarized optical microscopy (POM). Crystallization rate and temperature of neat PBT are increased when less than 10 wt % of P28 is blended. On the contrary, crystallization rate and temperature of neat PBT decrease when 10 wt % of P46, P64, or P82 copolyesters is blended. The crystallization behaviors of the blends are confirmed by the POM observations at the cooling cycles of the melts. On the other hand, melting endotherm onset temperature and melting peak width for all blends are comparable with those of neat PBT. These results imply that the stability and distribution of PBT crystallites in the blends are not significantly influenced by blending. The effects of POB content in the composition of the blends on the crystalline morphology were also presented. It is found that the structure of crystallites of the blends changed gradually with increasing the POB content in the composition of copolyester from lamellar to cross-like spherulite structures. (C) 1996 John Wiley & Sons, Inc. [References: 13]
机译：通过熔融共混制备聚对苯二甲酸丁二酯（PBT）与四种不同类型的共聚[对苯二甲酸乙二酯-对-氧苯甲酸酯）共聚酯的共混物，分别命名为P28，P46，P64和P82。然后通过差示扫描量热法和偏振光学显微镜（POM）研究了共混物的结晶行为。当掺入少于10wt％的P28时，纯PBT的结晶速率和温度增加。相反，当共混10重量％的P46，P64或P82共聚酯时，纯PBT的结晶速率和温度降低。共混物的结晶行为通过熔体冷却循环中的POM观察得到证实。另一方面，所有共混物的熔融吸热起始温度和熔融峰宽与纯PBT相当。这些结果暗示，共混物中PBT微晶的稳定性和分布不受显着影响。还介绍了共混物组成中POB含量对结晶形态的影响。发现共混物的微晶结构随着共聚酯组成中POB含量的增加而逐渐变化，从层状到十字形球晶结构。 （C）1996 John Wiley＆Sons，Inc. [参考：13]

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号