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

A technology for thermoplastic resins and automotive interior panels, applied in synthetic resin layered products, chemical instruments and methods, layered products, etc. More direct and powerful assistance in the material forming stage to achieve the effect of automation and good rheological properties

Active Publication Date: 2015-04-15
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 Topping

[0025] 30kg of polyester fiber, 20kg of spandex fiber, 30kg of polypropylene fiber, and 408-20kg of hot-melt fiber are fed under control, and the mixed fiber is opened in the opener. The mixed and loosened fibers form a fiber web with a certain thickness through the joint action of the screen and the laying curtain. After laying the curtain, the fiber enters the oven, and there is a straight-line reciprocating spraying device at the entrance of the oven and the second floor of the oven. The spraying method is used to spray the phosphorus nitrogen flame retardant guanidine phosphate and the organic silicon quaternary ammonium antibacterial agent on the fiber mat. DC-5700 mixed solution. Then the fiber felt is shaped by hot pressing rollers and finally cut and wound.

[0026] Step 2: Prepare the core layer

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

Embodiment 2

[0031] Step 1: Prepare the Topping

[0032] 40kg of polyester fiber, 20kg of spandex fiber, 22kg of polypropylene fiber and 408016kg of hot-melt fiber are fed under control, and the mixed fiber is opened in the opener. The mixed and loosened fibers form a fiber web with a certain thickness through the joint action of the screen and the laying curtain. The fibers formed into a net by the laying machine enter the needle loom, and the fibers are entangled by the up and down reciprocating motion of the needles of the needle loom. After passing through the acupuncture machine, it enters the oven, and there is a linear reciprocating spraying device at the entrance of the oven and the second floor of the oven. Spray the fiber mat with the phosphorus-nitrogen flame retardant guanidine phosphate and the organic silicon quaternary ammonium antibacterial agent DC-5700 by spraying. Mixture. Finally cut and roll.

[0033] Step 2: Prepare the core layer

[0034] Dissolve maleic anhydrid...

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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 an automobile interior panel, in particular to a production method of a natural fiber / thermoplastic resin composite material automobile interior panel, and belongs to the technical field of composite material preparation. Background technique [0002] In recent years, the automobile industry has developed rapidly. According to the data released by the world-renowned American automobile industry magazine Wardsauto, the total number of all kinds of cars in use in 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 issues such as its quality, economy, environmental protection, and recyclability. Currently, composite substrates used in the manufacture of automotive interior panels are gradually being replaced by natural fiber composites. [0003] The patent document (publication number: CN 102145553A) discloses a...

Claims

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Application Information

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