All-plastic tail door outer plate material low in linear expansion coefficient and easy to bond and preparation method of all-plastic tail door outer plate material

A low linear expansion, plate material technology, applied in the field of full plastic tailgate outer plate material and its preparation, can solve the problems of large difference in linear expansion coefficient, large product size gap, poor bonding performance, etc., and achieve low linear expansion coefficient. , Improve the bonding strength, reduce the effect of linear expansion coefficient
CN114539664APending Publication Date: 2022-05-27HEFEI GENIUS NEW MATERIALS
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
HEFEI GENIUS NEW MATERIALS
Publication Date
2022-05-27

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Abstract

The invention discloses an all-plastic tail door outer plate material with low linear expansion coefficient and easy adhesion. The all-plastic tail door outer plate material is prepared from the following components in parts by weight: 45 to 61 parts of polypropylene, 8 to 15 parts of styrene-isoprene-styrene block copolymer, 5 to 10 parts of polarity improver, 15 to 30 parts of enhancer, 3 to 6 parts of compatilizer, 0.4 to 0.6 part of antioxidant and 0.2 to 0.4 part of light stabilizer. The invention further discloses a preparation method of the all-plastic tail door outer plate material. By adding the reinforcing agent, the mechanical property of the material is improved, and the linear expansion coefficient of the material is reduced; the surface polarity of the material is improved by adding the styrene-isoprene-styrene block copolymer; through the synergistic effect of the nitrile rubber and the compatilizer, the surface polarity of the material is improved, and the bonding strength of the material is improved. The material prepared by the invention has the characteristics of low linear expansion coefficient and easiness in adhesion, and is particularly suitable for manufacturing an all-plastic tail door outer plate.
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Description

technical field

[0001] The invention belongs to the technical field of polymer material modification and processing technology, and particularly relates to an all-plastic tailgate outer panel material with low linear expansion coefficient and easy bonding and a preparation method thereof. Background technique

[0002] In recent years, with the vigorous development of new energy vehicles, vehicle lightweighting has become a key focus area for enterprises. As an emerging lightweight technical solution, the all-plastic tailgate is favored by major OEMs for its excellent lightweight effect. Generally, the inner panel of the all-plastic tailgate is made of long glass fiber reinforced PP (LGF+PP) material or SMC material with low linear expansion coefficient. Acrylic material.

[0003] The two parts of the inner panel and the outer panel of the all-plastic tailgate need to be pasted by glue. In order to achieve a better bonding effect and a higher dimensional accuracy of the par...

Claims

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