Unlock instant, AI-driven research and patent intelligence for your innovation.

Lightweight high-strength glass fiber-reinforced polypropylene composite board for vehicles

A glass fiber and composite plate technology, which is applied in the direction of glass/slag layered products, vehicle parts, synthetic resin layered products, etc., can solve the problems of bearing capacity and reduction of abnormal resonance noise, etc., so that it is not easy to resonate and shake , Improving the load-bearing performance and improving the effect of bending performance

Inactive Publication Date: 2018-06-15
浙江华江科技股份有限公司
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, it is impossible for a single LWRT composite material to improve the overall bearing capacity and reduce the abnormal resonance noise without increasing the overall weight and adding shock-absorbing accessories. It is very necessary to find a new composite material

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Lightweight high-strength glass fiber-reinforced polypropylene composite board for vehicles
  • Lightweight high-strength glass fiber-reinforced polypropylene composite board for vehicles
  • Lightweight high-strength glass fiber-reinforced polypropylene composite board for vehicles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] figure 1 It is a lightweight and high-strength glass fiber reinforced polypropylene composite sheet structure for vehicles. From top to bottom, there are shock absorption layer 4, LWRT compression layer 1, reinforcement layer 2, LWRT tensile layer 3, and shock absorption layer 4. The damping layer 4 is TPO, and its weight per unit area is 50g / m 2 , LWRT compression layer 1 has a bulk density of 0.6g / cm 3 , The weight ratio of glass fiber in the reinforcement layer 2 is 40%, the melt index of polypropylene is 30g / 10min, the weight ratio of glass fiber in the LWRT stretch layer 3 is 30%, the LWRT compression layer 1, the reinforcement layer 2, and the LWRT stretch layer 3 The weight ratio per unit square area is 1:1:1;

Embodiment 2

[0023] figure 1 It is a lightweight and high-strength glass fiber reinforced polypropylene composite sheet structure for vehicles. From top to bottom, there are shock absorption layer 4, LWRT compression layer 1, reinforcement layer 2, LWRT tensile layer 3, and shock absorption layer 4. The shock absorption layer 4 is TPO, and its unit area weight is 100g / m 2 , LWRT compression layer 1 has a bulk density of 0.5g / cm 3 , The weight ratio of glass fiber in reinforcement layer 2 is 60%, polypropylene melt index is 20g / 10min, the weight ratio of glass fiber in LWRT stretch layer 3 is 40%, LWRT compression layer 1, reinforcement layer 2, LWRT stretch layer 3 The weight ratio per unit square area is 1:0.5:1;

Embodiment 3

[0025] figure 1 It is a lightweight and high-strength glass fiber reinforced polypropylene composite sheet structure for vehicles. From top to bottom, there are shock absorption layer 4, LWRT compression layer 1, reinforcement layer 2, LWRT tensile layer 3, and shock absorption layer 4. The damping layer 4 is TPO, and its weight per unit area is 20g / m 2 , LWRT compression layer 1 has a bulk density of 0.8g / cm 3 , The weight ratio of glass fiber in the reinforcement layer 2 is 40%, the melt index of polypropylene is 100g / 10min, the weight ratio of glass fiber in the LWRT stretch layer 3 is 20%, the LWRT compression layer 1, the reinforcement layer 2, the LWRT stretch layer 3 The weight ratio per unit square area is 3: 1: 3;

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
Login to View More

PUM

PropertyMeasurementUnit
densityaaaaaaaaaa
melt flow indexaaaaaaaaaa
densityaaaaaaaaaa
Login to View More

Abstract

The invention relates to a lightweight high-strength glass fiber-reinforced polypropylene composite board for vehicles. The structure of the board comprises a shock absorbing layer, a LWRT compressionlayer, a reinforcing layer, a LWRT tensile layer and a shock absorbing layer from top to bottom. Under a downward force and heavy object load, the forces to the board along a vertical direction belong to different types, the compressing force acts the upper surface of the board and the drawing force acts the lower surface of the board. Through dissection analysis of forces on the board, a corresponding method is provided and a multi-layer composite structure is designed. Through different effects of a compression layer, a tensile layer and a reinforcing layer, the bending strength of the board is improved, the whole weight of the board in unit square meter is kept, the mass is not increased and the board strength is greatly improved.

Description

Technical field [0001] The invention relates to the field of composite materials for automobile interior decoration, in particular to a lightweight and high-strength glass fiber reinforced polypropylene composite board for vehicles. Background technique [0002] Lightweight glass fiber reinforced polypropylene composite material, also known as LWRT, is a composite material made of glass fiber and polypropylene fiber through unpacking, carding, netting, needle punching, and hot pressing. Because of its high specific strength and high specific modulus, it is widely used in automotive interior parts, such as coat racks, spare tire covers, trunk side walls, roofs, etc. [0003] As a part of the car interior, the car coat rack has the functions of stacking debris, shielding the trunk, and child seat card holders. The car coat rack made of LWRT material has the advantages of simple structure and simple molding, but for some For models with high load-bearing capacity, due to their large ...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/32B32B27/02B32B17/04B32B27/06B32B33/00
CPCB32B27/32B32B5/02B32B27/08B32B33/00B32B2262/0253B32B2262/101B32B2307/546B32B2605/003
Inventor 丁文鹏周立陈佳扬赵涛方晶马国维
Owner 浙江华江科技股份有限公司