Production method of automobile interior trim panels made of natural fiber/thermoplastic resin composite materials

A thermoplastic resin and automotive interior panel technology, which is applied in synthetic resin layered products, chemical instruments and methods, layered products, etc. Lack of integrated planning of composite material preparation and molding processing to achieve the effect of automation and good rheological properties

Active Publication Date: 2013-12-25
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, both of the above two patents reflect a common shortcoming: the early stage of composite material preparation at room temperature and the later stage of interior trim panel heating and forming are separated, and there is a lack of integrated planning for composite material preparation and molding processing. More immediate and powerful assistance in the material forming phase

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Step 1: Prepare the surface layer

[0025] 30kg of polyester fiber, 20kg of spandex fiber, 30kg of polypropylene fiber, and 408020kg of hot melt fiber are controlled and fed, and the mixed fiber is opened in the opener. The mixed and opened fibers are combined by the screen and the laying curtain to form a fiber web with a certain thickness. After laying the curtain and forming a net, the fiber enters the oven, and there is a linear reciprocating spraying device at the entrance of the oven and the second layer of the oven. The spraying method is used to spray the phosphorus-nitrogen flame retardant guanidine phosphate and the organic silicon quaternary ammonium salt antibacterial agent on the fiber mat DC-5700 mixed liquid. Afterwards, the fiber mat is shaped by hot pressing rollers and finally cut and reeled.

[0026] Step 2: Prepare the core layer

[0027] Dissolve maleic anhydride as an esterification reagent in xylene solvent, weigh a certain amount of hemp fiber into t...

Embodiment 2

[0031] Step 1: Prepare the surface layer

[0032] 40kg of polyester fiber, 20kg of spandex fiber, 22kg of polypropylene fiber, and 408016kg of hot melt fiber are controlled and fed, and the mixed fiber is opened in the opener. The mixed and opened fibers are combined with a screen and a curtain to form a fiber web with a certain thickness. The fibers that are made into a net by the laying machine enter the needle punching machine, and the up and down reciprocating cloud tops of the needle punch of the needle punching machine make the fibers entangled. After the needle punching machine, it enters the oven. There is a linear reciprocating spraying device at the entrance of the oven and the second layer of the oven. The fiber mat is sprayed with the phosphorus-nitrogen flame retardant guanidine phosphate and the organic silicon quaternary ammonium salt antibacterial agent DC-5700. Mixture. Finally cut and rewind.

[0033] Step 2: Prepare the core layer

[0034] Dissolve maleic anhyd...

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PUM

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Abstract

The invention discloses a production method of automobile interior trim panels made of natural fiber / thermoplastic resin composite materials. The method includes the steps of carrying out opening treatment on fiber in core-layer materials and fiber in surface-layer materials respectively, mixing and spreading out the fiber to form fiber nets, carrying out heating and gluing preforming treatment, carrying out rolling preforming treatment, cutting the preformed fiber nets into rolls to obtain core-layer fiber mats and surface-layer fiber mats, carrying out preheating treatment on the core-layer fiber mats and the surface-layer fiber mats, carrying out hot compression molding on the core-layer fiber mats to obtain core panels, carrying out hot compression molding on the surface-layer fiber mats on the core panels to enable surface panels of the trim panels to be tightly integrated with the core panels of the interior trim panels, then placing one integrated trim panel below a punching and blanking die, and carrying out punching and blanking simultaneously on the integrated trim panel to obtain one automobile interior trim panel. The production method achieves integration of designing, manufacturing and forming of the composite materials, and provides a progressive hot compression molding process to manufacture the automobile interior trim panels made of the natural fiber / thermoplastic resin composite materials.

Description

Technical field [0001] The invention relates to a production method of automotive interior trim panels, in particular to a production method of natural fiber / thermoplastic resin composite automotive interior trim panels, and belongs to the technical field of composite material preparation. Background technique [0002] In recent years, the automobile industry has developed rapidly. According to data released by the world-renowned American automotive industry magazine Wardsauto, the total number of vehicles in use around the world has exceeded 1 billion as of August 16, 2011. The huge demand for automotive interior panels has prompted people to pay more attention to their quality, economy, environmental protection, and recyclability. At present, the composite substrate used in the manufacture of automotive interior panels is gradually being replaced by natural fiber composite materials. [0003] The patent document (Publication No.: CN 102145553A) discloses an environment-friendly...

Claims

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Application Information

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IPC IPC(8): B32B27/02B32B27/12B32B37/10
Inventor 贾玉玺董琪孙筱辰王照静
Owner SHANDONG UNIV
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