CN211054560U

CN211054560U - Novel automotive interior composite sheet

Info

Publication number: CN211054560U
Application number: CN201921940975.7U
Authority: CN
Inventors: 黄良胜
Original assignee: Zhenjiang Changjiang Automobile Interior Materials Co ltd
Current assignee: Zhenjiang Changjiang Automobile Interior Materials Co ltd
Priority date: 2019-11-12
Filing date: 2019-11-12
Publication date: 2020-07-21
Anticipated expiration: 2029-11-12

Abstract

The utility model discloses a novel automotive interior composite board in the field of automotive interior panels, which comprises a PU board substrate layer, wherein the upper surface of the PU board substrate layer is connected with an upper wood fiber layer in an adhesive manner, the upper wood fiber layer is connected with an upper surface layer in an adhesive manner, the lower surface of the PU board substrate layer is connected with a lower wood fiber layer in an adhesive manner, and the lower wood fiber layer is connected with a lower surface layer in an adhesive manner; replace glass fiber with wood fiber for can regenerate environmental protection material and replace poisonous and harmful material, reduce manufacturing cost, get rid of glass fiber, promote the security in the production process, and improved the elastic modulus of panel, strengthened shock resistance, the utility model discloses can be used to automotive interior.

Description

Novel automotive interior composite sheet

Technical Field

The utility model relates to a composite board.

Background

The prior art discloses the announcement number as: CN 203901835U, the announcement date is: 2014.10.29A panel for use in automotive interiors. The panel for automotive interior includes: the composite board comprises a composite layer and an outer lining layer attached to the outer surface of the composite layer, wherein the composite layer comprises an outer side layer, an inner side layer and a middle layer, the outer side layer is made of PUR materials, the inner side layer is made of glass fiber materials, and the middle layer is a paper core. The utility model provides a pair of a panel for automotive interior compares with interior trim part among the prior art, and it adopts multilayer structure shock resistance effectual, and the bearing is effectual, and is not fragile moreover, uses more lastingly. However, the sheet contains glass fibers, which are harmful to human body when in contact with the glass fibers for a long time, and the sheet has insufficient elastic modulus and insufficient impact resistance.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a novel automotive interior composite sheet gets rid of glass fiber, has promoted the security in the production process to improve the elastic modulus of panel, strengthened shock resistance.

In order to achieve the above object, the utility model provides a novel automotive interior composite sheet, including the PU board substrate layer, the upper surface and the last wood fiber layer adhesive bonding of PU board substrate layer, go up wood fiber layer and last surface course adhesive bonding, the lower surface adhesive bonding of PU board substrate layer has lower wood fiber layer, lower wood fiber layer adhesive bonding has lower surface course.

Compared with the prior art, the beneficial effects of the utility model reside in that, replace glass fiber with wood fiber for can regenerate environmental protection material and replace poisonous and harmful material, reduced manufacturing cost, get rid of glass fiber, promoted the security in the production process, and improved the elastic modulus of panel, strengthened shock resistance, the utility model discloses can be used to automotive interior.

As a further improvement of the utility model, the upper wood fiber layer and the lower wood fiber layer both comprise wood fiber foaming boards, the upper surface and the lower surface of the wood fiber foaming boards are both provided with wood fiber reinforcing boards, wood fibers and renewable resin are uniformly mixed and then enter a screw extruder to be plasticized and micro-foamed, then the wood fiber foaming boards are pressed, meanwhile, the wood fibers, the renewable resin and limestone powder are uniformly stirred and sent into the extruder to be fully plasticized, the wood fiber reinforcing boards are pressed, as the wood fiber foaming boards and the wood fiber reinforcing boards contain the renewable resin with the same components, when the two boards are pressed by a sandwich structure, the two boards can be tightly combined with each other without adhesive at high temperature, the use of the adhesive can be eliminated, harmful gas can be released, and the wood fiber foaming boards have small density in the later period after micro-foaming treatment, can effectively reduce the panel quality, can also increase the buffering simultaneously, inhale the sound, inhale shake, heat retaining performance, rethread wood fiber reinforced board promotes sandwich structure's bulk strength, has further promoted shock resistance.

As the utility model discloses a further improvement, the PU board substrate layer is low density foaming PU board, and the sunshade can further promote the sound absorbing performance of panel for the deflection of panel reduces, and the rigidity is good, and non-deformable makes the gram weight of panel low moreover, and the percent opening is high, and the air permeability is good, is difficult for going mildy.

As a further improvement, the thickness of the wood fiber foaming plate is 8mm, so that the plate can have certain strength while having good buffering, sound absorption, shock absorption and heat preservation performances.

As the utility model discloses a further improvement, the thickness of wood fiber reinforcement board is 2mm, still gets the holistic thickness of panel and can not be too big when guaranteeing panel bulk strength like this, the processing of the panel of being convenient for.

As a further improvement of the utility model, the upper surface layer adopts warp knitting knitted fabric, so that the structure and the appearance of the upper surface layer are more stable, are not easy to be disassembled, can not be curled and have good air permeability.

As a further improvement, the lower surface layer adopts the non-woven fabrics for the lower surface layer is softer, and the gas permeability is good, and the bacterinertness is good, is difficult for the moldy moth worm, and environmental protection more.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the middle wood fiber layer of the present invention.

Wherein, 1 lower surface course, 2 wooden fiber layers down, 3PU board substrate layer, 4 wooden fiber layers on, 5 upper surface courses, 6 wooden fiber reinforced board, 7 wooden fiber foaming board.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

the novel automotive interior composite board shown in fig. 1-2 comprises a PU board base material layer 3, wherein the upper surface of the PU board base material layer 3 is in adhesive connection with an upper wood fiber layer 4, the upper wood fiber layer 4 is in adhesive connection with an upper surface layer 5, the lower surface of the PU board base material layer 3 is in adhesive connection with a lower wood fiber layer 2, and the lower wood fiber layer 2 is in adhesive connection with a lower surface layer 1; the upper wood fiber layer 4 and the lower wood fiber layer 2 both comprise wood fiber foaming plates 7, and wood fiber reinforced plates are arranged on the upper surface and the lower surface of each wood fiber foaming plate 7; the PU board base material layer 3 is a low-density foamed PU board; the thickness of the wood fiber foaming board 7 is 8 mm; the thickness of the wood fiber reinforced plate is 2 mm; the upper surface layer 5 adopts warp knitting knitted fabric; the lower layer 1 adopts non-woven fabrics.

In the utility model, the upper wood fiber layer 4 and the lower wood fiber layer 2 both adopt a three-layer sandwich structure, the middle is a wood fiber foaming plate 7, the thickness is 8mm, and the wood fiber foaming plate contains renewable thermoplastic resin, wood fiber and foaming agent; the upper layer and the lower layer are wood fiber reinforced plates, the thickness is 2mm, the wood fiber reinforced plates contain renewable thermoplastic resin, wood fiber and limestone powder, wherein the renewable thermoplastic resin in the wood fiber foamed plate 7 and the wood fiber reinforced plates is the same substance, the two plates are conveyed to a hot press for hot pressing, and then conveyed to a cold press for cooling and molding.

In the actual use process, the content of harmful volatile organic compounds can be effectively reduced, the whole composite board has good buffering, sound absorbing, shock absorbing and heat insulating performances, and is high in strength, strong in impact resistance, not easy to mildew, and the production cost is well reduced.

The present invention is not limited to the above embodiments, and based on the technical solutions of the present disclosure, those skilled in the art can make some substitutions and transformations to some technical features without creative labor according to the disclosed technical contents, and these substitutions and transformations are all within the protection scope of the present invention.

Claims

1. The utility model provides a novel automotive interior composite sheet, includes PU board substrate layer, its characterized in that: the upper surface and the last wood fiber layer adhesive bonding of PU board substrate layer, go up wood fiber layer and upper strata adhesive bonding, the lower surface adhesive bonding of PU board substrate layer has lower wood fiber layer, wood fiber layer adhesive bonding has lower surface course down.

2. The novel automotive interior composite panel of claim 1, wherein: the upper wood fiber layer and the lower wood fiber layer both comprise wood fiber foaming plates, and wood fiber reinforcing plates are arranged on the upper surfaces and the lower surfaces of the wood fiber foaming plates.

3. The novel automotive interior composite panel of claim 2, wherein: the PU board substrate layer is the low density foaming PU board.

4. The novel automotive interior composite panel of claim 3, wherein: the thickness of the wood fiber foaming plate is 8 mm.

5. The novel automotive interior composite panel of claim 4, wherein: the thickness of the wood fiber reinforced plate is 2 mm.

6. The novel automotive interior composite panel according to any one of claims 1 to 5, wherein: the upper surface layer is made of warp knitting knitted fabric.

7. The novel automotive interior composite panel according to any one of claims 1 to 5, wherein: the lower surface layer is made of non-woven fabrics.