Method for rapid crystallization of polymer at high temperature

A polymer and rapid technology, applied in the field of polymer materials, can solve the problems of complex process, low temperature, difficult continuous operation, etc., and achieve the effect of easy industrial production, wide application and low cost
CN106519610AInactive Publication Date: 2017-03-22JIANGNAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGNAN UNIV
Publication Date
2017-03-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for rapid crystallization of a polymer at high temperature. The method includes the steps of (1) subjecting a polymer and an organic nucleating agent to melt blending according to a weight part at a first temperature to obtain a uniformly dispersed composition; and (2) shearing the composition at a second temperature to promote rapid crystallization of the polymer. At the second temperature, the semi-crystallization time t1 / 2 of the polymer material is shortened to less than 25min, thus endowing the material with excellent physical and mechanical properties and heat resistance, etc.
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Description

technical field

[0001] The invention relates to the technical field of polymer materials, in particular to a method for rapid crystallization of polymers at high temperatures. Background technique

[0002] Polyester materials are widely used in various fields of the current national economy due to their outstanding advantages such as wide source of raw materials, convenient processing, and light weight. However, the poor flexibility of the molecular chain of crystalline polyester materials leads to problems such as slow crystallization rate and low crystallinity, which lead to long molding cycle, low heat resistance temperature and low material strength of polyester materials. These problems restrict the development and application of polyester, especially as engineering materials. Therefore, improving the crystallization rate and crystallinity of polyester is the most urgent problem to be solved in the development of polyester industry.

[0003] At present, adding an inor...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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