当前位置：
X-MOL 学术
›
Polym. Int.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Compatibility and toughening mechanism of poly(ethylene terephthalate)/polycarbonate blends
Polymer International ( IF 2.9 ) Pub Date : 2020-07-05 , DOI: 10.1002/pi.6081 Juan Liu 1 , Xiaowen Zhao 1 , Lin Ye 1
Polymer International ( IF 2.9 ) Pub Date : 2020-07-05 , DOI: 10.1002/pi.6081 Juan Liu 1 , Xiaowen Zhao 1 , Lin Ye 1
Affiliation
|
Poly(ethylene terephthalate) (PET)/polycarbonate (PC) blends with methyl methacrylate‐styrene‐butadiene copolymer as compatibilizer (CP) were prepared. Compared with pure PET, the notched impact strength of the blend was improved significantly, while high tensile strength and 50%–70% optical transparency could be maintained. In particular, for the PET/70 wt% PC sample the notched impact strength sharply increased by 955% with the addition of compatibilizer. The ΔTg of the two phases of the blends decreased on blending, exhibiting partial compatibility. Below 50 wt% PC, the dispersed PC phase presented uneven dispersion with large aggregates and a clear interface, while above 50 wt% PC a reverse phase transformation occurred and the PET phase was evenly dispersed in the PC matrix with small aggregates and obvious interface transition areas. The introduction of CP promoted spherical PC particles to uniformly disperse in the matrix, and the interface transition area of the two phases became very wide. Moreover, the CP itself ran through the matrix to form a ‘quasi‐network distribution’ and the compatibility was greatly improved, thus leading to an obvious enhancement of the impact toughness of the blend. © 2020 Society of Industrial Chemistry
中文翻译：
聚对苯二甲酸乙二醇酯/聚碳酸酯共混物的相容性和增韧机理
制备了聚对苯二甲酸乙二醇酯（PET）/聚碳酸酯（PC）与甲基丙烯酸甲酯-苯乙烯-丁二烯共聚物作为增容剂（CP）的混合物。与纯PET相比，共混物的缺口冲击强度得到了显着改善，而高拉伸强度和50％–70％的光学透明性得以保持。特别是，对于PET / 70 wt％的PC样品，添加相容剂后，缺口冲击强度急剧提高了955％。该Δ Ť克共混物的两个相的当量在共混时降低，表现出部分相容性。PC含量低于50 wt％时，分散的PC相表现出不均匀的分散，具有大的聚集体和清晰的界面，而PC含量高于50 wt％时，发生了反相转变，PET相均匀地分散在PC基质中，聚集体较小，界面过渡明显地区。CP的引入促进了球形PC颗粒均匀地分散在基体中，并且两相的界面转变区域变得非常宽。此外，CP本身贯穿矩阵形成“准网络分布”，并且相容性大大提高，从而显着提高了混合物的冲击韧性。©2020工业化学学会
更新日期：2020-07-05
中文翻译：
聚对苯二甲酸乙二醇酯/聚碳酸酯共混物的相容性和增韧机理
制备了聚对苯二甲酸乙二醇酯（PET）/聚碳酸酯（PC）与甲基丙烯酸甲酯-苯乙烯-丁二烯共聚物作为增容剂（CP）的混合物。与纯PET相比，共混物的缺口冲击强度得到了显着改善，而高拉伸强度和50％–70％的光学透明性得以保持。特别是，对于PET / 70 wt％的PC样品，添加相容剂后，缺口冲击强度急剧提高了955％。该Δ Ť克共混物的两个相的当量在共混时降低，表现出部分相容性。PC含量低于50 wt％时，分散的PC相表现出不均匀的分散，具有大的聚集体和清晰的界面，而PC含量高于50 wt％时，发生了反相转变，PET相均匀地分散在PC基质中，聚集体较小，界面过渡明显地区。CP的引入促进了球形PC颗粒均匀地分散在基体中，并且两相的界面转变区域变得非常宽。此外，CP本身贯穿矩阵形成“准网络分布”，并且相容性大大提高，从而显着提高了混合物的冲击韧性。©2020工业化学学会
京公网安备 11010802027423号