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Non-woven fabric wheel cover and one-time forming method thereof

A non-woven fabric and molding method technology, applied in textiles, papermaking, non-woven fabrics, etc., can solve the problems of limited mechanical strength, time-consuming and laborious, unstable strength, etc., and achieve excellent sound absorption and noise reduction. The effect of reducing energy consumption

Active Publication Date: 2018-05-01
上海天原集团胜德塑料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method can only be combined with the wheel cover one by one with the nonwoven fabric, if a product must be combined by multiple pieces of nonwoven fabric, multiple bonding or welding steps will be carried out to complete a product, so that Time-consuming and labor-intensive, if the product requires more than five non-woven fabrics, it must go through more than five processes to complete; in addition, the welding parts are different, and positioning tools and fixtures during welding are also required; because it is combined one by one, the wheel cover welding The surface is also a space curved surface, and the bonding strength is unstable due to different parts. Because the direction of the clamping force of the fixture is different during welding, the magnitude of the force is also different, and the mechanical strength of the bonded product is limited.

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
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  • Non-woven fabric wheel cover and one-time forming method thereof
  • Non-woven fabric wheel cover and one-time forming method thereof
  • Non-woven fabric wheel cover and one-time forming method thereof

Examples

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Effect test

preparation example Construction

[0079] The preparation method of the hydroxyl-terminated star-shaped polycaprolactone is as follows: firstly synthesizing a hexahydroxyl ring-containing trimeric phosphazene derivative as an initiator, and then triggering the ring-opening of the caprolactone monomer under the catalysis of stannous isooctanoate Polymerization to obtain star-shaped polycaprolactone. Concrete preparation method:

[0080] (1) Add 5g of hexachlorocyclotriphosphazene, 20g of potassium carbonate and 130ml of tetrahydrofuran into a 250mL three-necked round-bottomed flask equipped with magnetic stirring and reflux condenser, pass nitrogen gas for 30min, and slowly add 7.5g of p-hydroxyl in an ice-water bath Benzaldehyde. After the dropwise addition, it was raised to room temperature and reacted for 72 hours. After the reaction, the white precipitate was removed by suction filtration, and the filtrate was rotary evaporated to obtain a concentrated solution. The concentrated solution was added dropwise...

Embodiment approach 1

[0107] Embodiment 1, a non-woven fabric wheel cover, at least comprising a thermoplastic frame that maintains the overall shape of the non-woven fabric wheel cover and connects the bumper and the vehicle body, and a non-woven fabric located in the thermoplastic frame; the thermoplastic The raw materials of the plastic frame include 100 parts of thermoplastic polyolefin, 0.05-15 parts of inorganic fillers, 0.01-5 parts of glass fibers and 0.01-5 parts of halloysite nanotubes in parts by weight; the raw materials of the non-woven fabric, Calculated by weight, it contains 100 parts of polyester fiber and 20-45 parts of polypropylene fiber.

Embodiment approach 2

[0108] Embodiment 2 is the same as Embodiment 1, except that the thermoplastic polyolefin contains 50-80 wt% propylene homopolymer and / or propylene copolymer and 10-30 wt% maleic anhydride-modified polypropylene.

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
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Abstract

The invention provides a nonwoven fabric wheel casing which at least comprises a thermoplastic plastic frame and a nonwoven fabric located in the thermoplastic plastic frame.The thermoplastic plastic frame keeps the overall shape of the nonwoven fabric wheel casing and is connected with a bumper bar and an automobile body.The thermoplastic plastic frame is prepared from, by weight, 100 parts of thermoplastic polyolefin, 0.05-15 parts of inorganic filler, 0.01-5 parts of glass fiber, and 0.01-5 parts of halloysite nanotubes.The nonwoven fabric is prepared from, by weight, 100 parts of polyester fiber and 20-45 parts of polypropylene fiber.The nonwoven fabric is stable in performance, good in sound insulation effect, capable of being used in common conditions and capable of better meeting special requirement of rain, snow and other severe weather and complex road conditions for the wheel casing.

Description

technical field [0001] The invention relates to a wheel cover and its one-time forming method, in particular to a plastic wheel cover with non-woven fabric and its one-time forming method. Background technique [0002] Automobiles have become a very common means of transportation, and the market share of household cars is increasing continuously. The standards of public consumers for passenger cars are also gradually changing. Indicators such as comfort, humanization, light weight, and low fuel consumption have become the main evaluation indicators. The key components that affect these indicators have also become the key directions for technology upgrades and product adjustments of various OEMs. [0003] As a key part of the car, the wheel cover is mainly used to protect the wheels. The earliest car wheel cover is formed by metal stamping. Stamped wheel cover is a typical cover part. Compared with general stamped parts, it has the characteristics of complex space surface sh...

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
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L51/06C08L23/16C08K13/06C08K9/06C08K9/02C08K7/14C08K7/26C08K3/34B29C70/36D04H1/4382D04H1/4291D04H1/435D04H1/46
CPCB29C70/36C08K2201/011C08L23/12C08L2205/03D04H1/4291D04H1/435D04H1/4382D04H1/46C08L51/06C08L23/16C08K13/06C08K9/06C08K9/02C08K7/14C08K7/26C08K3/34
Inventor 王恩洪
Owner 上海天原集团胜德塑料有限公司
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