Page 69 - 《橡塑技术与装备》2023年7期

理论与研究 温浩宇 等·晶须增强 PET 复合材料的增韧改性研究

3 结论 [4] 丁圆 . 不同尺寸钛酸钾晶须对 LDPE/EVA 共混物改性及性能
研究 [D]. 西北民族大学硕士毕业论文，2022.
（1）添加硅灰石和钛酸钾晶须均能够明显提升
[5] 房尚龙，宋绪丁，陈克文，等 . 片状钛酸钾镁对摩擦材料性能
PET 的玻璃化转变温度，并且随晶须添加量增加提升 的影响 [J]. 材料导报 . 2022, 36(08):87-91.
幅度更大，但晶须添加量由 5% 上升至 10% 时，玻璃 [6] 郑夏莲，马元好 . 六钛酸钾晶须制备及在尼龙 6 中应用 [J]. 工
程塑料应用，2021, 49(08):140-144.
化温度进一步上升的趋势减缓。
[7] 周立权，温浩宇，徐刚 . 等 . PET/PC 合金的研制与性能研究 [J].
（2）硅灰石和钛酸钾晶须对 PET 的拉伸强度、弯 现代塑料加工应用，2017, 29(06):13-15.
曲模量和硬度均有明显的提升作用，且提升效果随晶 [8] 阳培翔，高灵强，温浩宇 . GMA-g-POE 增韧 PET 的结构与
须添加量增加而增加，但会造成材料塑性和冲击强度 性能研究 [J]. 合成纤维工业，2019, 42(05):54-57.
[9] 阳培翔，温浩宇 , 高灵强等 . 酒包装用增韧改性 PET 的研究 [J].
的大幅降低 ；与硅灰石相比，添加钛酸钾晶须对 PET
现代塑料加工应用，2019, 31(03):22-24.
强度和弯曲模量的改善效果更加明显，但所致的材料 [10] 温浩宇，高灵强，邹耀邦 . 几种 PETG 和 PET 的性能比较 [J].
塑性和冲击强度降低也更大。 现代塑料加工应用，2015, 27(04):24-27.
[11] 雷明辉，针涛 . 复配成核剂对玻纤增强阻燃 PET 性能及加工
（3）添加增韧剂能够有效提升硅灰石增强 PET 的
性的影响 [J]. 中国石油和化工标准与质量，2021, 41(23):43-
抗冲击强度和韧性，但对材料的玻璃化转变温度、熔 46+48.
点及结晶温度等热性能不会产生明显影响，对材料硬 [12] 徐斌，王恒旭，陆杰，等 . 重组竹 / 玻纤 /PET 泡沫复合多层
结构保温板制备及性能评价 [J]. 浙江农林大学学报，2021,
度的影响也较小。
38(02):396-402.
[13] 郭彬，许云川，温浩宇 . TPU 对 PET 力学性能及电镀性能的
参考文献 : 影响 [J]. 包装工程，2022, 43(11):70-74.
[1] Liu Y Y, Timmers H. Micro-scratching of polyethylene [14] Starostin E L, Goss V G A, Van der Heijden G H M.
terephthalate: Mechanisms of wear debris generation [J]. Whisker Sensing by Force and Moment Measurements at
European Polymer Journal, 2013, 49(8):1 984-1 993. the Whisker Base [J]. Soft robotics[J]. 2022, Doi: 10.1089/
[2] 郝建淦 . PET 树脂基无机纤维状矿物填充改性复合材料的制 soro.2021.0085.
备及性能研究 [D]. 中北大学硕士毕业论文 , 2014. [15] Agam O, Aleiner I L, Orgad D. New exact results for the
[3] 刘志伟，贾润礼，郝建淦，等 . 硫酸钙晶须及硅灰石纤维填充 two-phase model with several conserved currents [J].
PA6 复合材料的非等温结晶动力学研究 [J]. 塑料助剂，2014, Annals of Physics, 2019, DOI: 10.1016/j.aop.2019.168004.
02:47-52.
Study on toughening modification of whisker reinforced PET
composite materials

1
Wen Haoyu , Wu Bo , Gao Lingqiang , Guo Bin , Li Xuan 2
1
1
1
(1. Sichuan Yibin Plastic Packaging Materials Co. LTD., Yibin 644007, Sichuan, China;
2. Sichuan University of Science and Engineering, Zigong 643000, Sichuan, China)
Abstract: PET composites reinforced with Wollastonite and potassium titanate whiskers were prepared
by twin-screw extruder. In this paper, the effects of two kinds of whiskers on the thermal and mechanical
properties of PET were compared, and the modification effect of tougheners on the thermal and mechanical
properties of Wollastonite whiskers reinforced PET was analyzed. The results showed that the addition of
Wollastonite and potassium titanate wh iskers could significantly increase the glass transition temperature
of PET, and also significantly improve the tensile strength, flexural modulus and hardness of PET, but could
significantly reduce the plasticity and impact strength of the material; Compared with Wollastonite, the
addition of potassium titanate whiskers can significantly improve the strength and flexural modulus of PET,
but it will reduce the plasticity and impact strength of the material. The addition of toughening agent can
effectively improve the impact strength of Wollastonite reinforced PET, but has no significant impact on the
hardness and thermal properties of the material, such as glass transition temperature, melting point and
crystallization temperature.
Key words: PET; whiskers; toughening agent; thermal performance; hardness; mechanical property
(R-03)

2023 第 49 卷 ·21·
年