A Universal Equipment for Biaxial Stretching of Polymer Films

Ling-pu Meng Yuan-fei Lin Jia-li Xu Xiao-wei Chen Xue-yu Li Qian-lei Zhang Rui Zhang Nan Tian Liang-bin Li

Citation:  Ling-pu Meng, Yuan-fei Lin, Jia-li Xu, Xiao-wei Chen, Xue-yu Li, Qian-lei Zhang, Rui Zhang, Nan Tian, Liang-bin Li. A Universal Equipment for Biaxial Stretching of Polymer Films[J]. Chinese Journal of Polymer Science, 2015, 33(5): 754-762. doi: 10.1007/s10118-015-1623-1 shu

A Universal Equipment for Biaxial Stretching of Polymer Films

  • 基金项目:

    This work was financially supported by the National Natural Science Foundation of China (Nos. 51227801, 51325301).

摘要: A biaxial stretching equipment was designed and constructed to enable fundamental studies of the relationship between film processing conditions and structures of oriented film products. With programmable drive motors and scissor-like mechanism, all stretching modes, including uniaxial stretching with constant and free width, simultaneous and sequential biaxial stretching, can be applied to a square-shaped sheet. Parameters related to film stretching manufacturing, such as temperature, draw ratio and stretching speed can be set independently to meet the requirement of different polymers. The force information during stretching is recorded by two miniature tension sensors in two directions independently, which can monitor the mechanical stimulus and stress response. Using this equipment, experiments are conducted to investigate the influence of stretching parameters on the structure of polypropylene films, which provides an effective method to tailor the processing conditions to obtain the films with desired properties.

English


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  • 发布日期:  2015-05-05
  • 收稿日期:  2014-09-16
  • 修回日期:  2014-10-16
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