Light, high-toughness strong-sound-absorption thermoplastic composite material for automobile wheel casing fender and fabrication process thereof

A composite material and thermoplastic technology, which is applied in the field of thermoplastic composite materials for light weight, high toughness, and high sound-absorbing automotive wheel cover guards and its preparation technology, can solve the problems of no sound-absorbing effect and high cost of EPDM, and achieve low cost, The effect of adjustable toughness and excellent impact toughness

Active Publication Date: 2013-12-11
浙江华江科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The wheel guard made of PP+EPDM has excellent impact toughness, but the cost of E

Method used

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  • Light, high-toughness strong-sound-absorption thermoplastic composite material for automobile wheel casing fender and fabrication process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) After the modified PP fiber and glass fiber are opened by a fiber opener, they are cross-laid, and the mass ratio of the two is 6:4, and the aspect ratio of the glass fiber is 500. Sprinkle 5 parts of 500-mesh high-density polyethylene rubber powder through a powder spreader, and then perform double-sided needle punching after rolling and lamination to obtain a composite felt;

[0029] (2) The composite felt is firstly heated by a contact heating device in the form of being sandwiched between upper and lower layers of parallel Teflon belts. The transmission speed is 2m / min, and the temperature is controlled at 170°C. ℃ and then unwind 100g of toughened film and 150g of spunlace PET non-woven fabric at the same time above and below it, and enter the hot-pressing device together with the composite felt, and carry out hot-pressing lamination at 210°C and 5MPa, and hold the pressure for 5s. Among them, the toughened film is a co-extruded film of PE and POE, with a mass ...

Embodiment 2

[0031] (3) After the modified (PP fiber + PA fiber) and (glass fiber + bamboo fiber) are opened by the fiber opener, they are then cross-laid. Among them, the polymer fiber: reinforced fiber is 7:3, and the PP fiber: The PA fiber is 8:2, the glass fiber:bamboo fiber is 8:2, and the aspect ratio of the reinforcing fiber is 1500. Sprinkle 10 parts of 200-mesh carbon black through a powder spreader, and then perform double-sided needle punching after rolling and lamination to obtain a composite felt;

[0032] (4) The composite felt is firstly heated by a contact heating device in the form of being sandwiched between upper and lower layers of parallel Teflon belts. The transmission speed is 5m / min, and the temperature is controlled at 190°C. Then unwind 150g of toughened film and 100g of hot-rolled PET non-woven fabric at the same time above and below it, enter the hot-pressing device together with the composite felt, and carry out hot-pressing lamination at 195°C and 20MPa, and h...

Embodiment 3

[0034] (5) After the modified (PP fiber + PET fiber) and basalt are opened by the fiber opener, they are then cross-laid, in which the polymer fiber: basalt fiber is 8:2, and the PP fiber: PET fiber is 7:3 , The aspect ratio of basalt fiber is 3000. Sprinkle 15 parts of 80-mesh talcum powder through a powder spreading machine, and then perform double-sided needle punching after rolling and lamination to obtain a composite felt;

[0035] The composite felt is firstly heated by a contact heating device in the form of being sandwiched between upper and lower layers of parallel Teflon belts. The transmission speed is 10m / min, and the temperature is controlled at 230°C. Then unwind 250g of toughened film and 50g of spunlace PET non-woven fabric at the same time above and below it, enter the hot-pressing device together with the composite felt, and carry out hot-pressing lamination at 170°C and 50MPa, and hold the pressure for 50s. Among them, the toughened film is a co-extruded fi...

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Abstract

The invention relates to a light, high-toughness strong-sound-absorption thermoplastic composite material for an automobile wheel casing fender and a fabrication process of the thermoplastic composite material. The thermoplastic composite material is formed by a non-woven fabric, a toughening membrane, an inorganic modified thermoplastic composite material, another toughening membrane and another non-woven fabric which are sequentially overlapped from bottom to top, wherein the inorganic modified thermoplastic composite material takes thermoplastic resin fibers and reinforced fibers as a main body and contains a powdery reinforcing filler. According to the thermoplastic resin composite material for the automobile wheel casing fender, thermoplastic resin reinforced by the reinforced fibers can achieve good rigidity, the toughening membrane can provide excellent impact toughness, the combination of the powdery filler and the fibers can achieve an excellent sound-absorption property, and therefore, the thermoplastic composite material can ensure riding comfort. Besides, the thermoplastic composite material with the scheme has the advantages of simple process, continuous production and controllable toughness, is lower than a PP (Propene Polymer) and EPDM (Ethylene-Propylene-Diene Monomer) system in cost, and can be popularized as a composite material for a new generation of automobile wheel casing fender.

Description

technical field [0001] The invention relates to the material and preparation process of automobile wheel cover guards, in particular to a thermoplastic composite material for automobile wheel cover guards with light weight, high toughness and high sound absorption and its preparation process. Background technique [0002] The main function of the wheel guard on the top of the car wheel is to block the impact of mud and stones, reduce the impact of mud and stones and the noise generated by the friction between the wheel and the ground, so the material of the wheel guard must have good impact toughness and sound absorption . In addition, since the wheel guard is an exterior trim, it still needs to function in bad weather, so the material is required to have good weather resistance. [0003] At present, the research and reports on the wheel guard at home and abroad are mostly limited to structural components, and less attention has been paid to its material composition. The m...

Claims

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Application Information

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IPC IPC(8): B32B27/02B32B27/08B32B27/20B32B27/12B32B37/00
Inventor 傅华康楼娣赵涛马国维周立
Owner 浙江华江科技股份有限公司
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