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Automotive spoiler cured in stages and preparation method of automotive spoiler

A segmented vulcanization and spoiler technology, which is applied in the field of auto parts, can solve the problems of cracks, damage, and reduced mechanical properties of auto spoilers, and achieve the effect of easy-to-obtain raw materials and simple processes

Active Publication Date: 2017-11-24
彭超昀莉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Because the car spoiler is located on the outside of the vehicle, in severe cold conditions, especially in the northern environment, the car spoiler is often affected by the cold environment, which reduces its mechanical properties, which causes the car to be damaged during driving. The spoiler will appear cracked or even damaged

Method used

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  • Automotive spoiler cured in stages and preparation method of automotive spoiler

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preparation example Construction

[0014] The invention provides a method for preparing a section vulcanized automobile spoiler, the preparation method comprising:

[0015] 1) Vulcanize isoprene rubber, dimethyl diphenylthiuram disulfide, 2-mercaptobenzothiazole, and strontium peroxide in a closed environment to obtain modified isoprene rubber;

[0016] 2) MBS (methacrylic acid-butadiene-styrene copolymer), PC (polycarbonate), nano-dysprosium oxide, zinc borate, sorbitan monostearate, attapulgite, magnesium hydroxide, mixing carbon fibers, followed by first melting; then adding modified isoprene rubber to the first melted system for second melting to obtain a melted product;

[0017] 3) Molding the melted product to produce a segmented vulcanized automobile spoiler;

[0018] Wherein, in step 1), the pressure in the vulcanization treatment consists of successively alternating high-pressure sections and low-pressure sections, the pressure of the high-pressure sections is 2-4 MPa, and the pressure of the low-pres...

Embodiment 1

[0029] 1) Vulcanize isoprene rubber, dimethyldiphenylthiuram disulfide, 2-mercaptobenzothiazole, and strontium peroxide in a closed environment at a weight ratio of 1:0.2:0.02:0.02 ( The vulcanization temperature is 100°C, and the vulcanization time is 6 hours; the pressure is composed of continuous alternating high-pressure section and low-pressure section, the pressure of the high-pressure section is 3MPa, and the pressure of the low-pressure section is 0.3MPa; the pressure of the high-pressure section and the low-pressure section The time ratio is 1:2.5) to produce modified isoprene rubber;

[0030] 2) Mix MBS, PC, nano-dysprosium oxide, zinc borate, sorbitan monostearate, attapulgite, magnesium hydroxide, and carbon fiber, and then perform the first melting (melting temperature is 265°C, melting time is 5h ); then the modified isoprene rubber is added to the first melting system for the second melting (melting temperature is 250°C, melting time is 50min) to obtain molten p...

Embodiment 2

[0033] 1) Vulcanize isoprene rubber, dimethyl diphenylthiuram disulfide, 2-mercaptobenzothiazole, and strontium peroxide in a closed environment according to the weight ratio of 1:0.15:0.01:0.01 ( The vulcanization temperature is 80°C, and the vulcanization time is 5 hours; the pressure is composed of continuous alternating high-pressure section and low-pressure section, the pressure of the high-pressure section is 2MPa, and the pressure of the low-pressure section is 0.1MPa; the pressure of the high-pressure section and the low-pressure section The time ratio is 1:2) to obtain modified isoprene rubber;

[0034] 2) Mix MBS, PC, nano-dysprosium oxide, zinc borate, sorbitan monostearate, attapulgite, magnesium hydroxide, and carbon fiber, and then perform the first melting (melting temperature is 260°C, melting time is 4h ); then the modified isoprene rubber is added to the first melting system for the second melting (melting temperature is 240°C, melting time is 40min) to obtai...

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Abstract

The invention discloses an automotive spoiler cured in stages and a preparation method of the automotive spoiler. The preparation method comprises the following steps: (1) carrying out sulfidizing on isoprene rubber, dimethyl-diphenyl thiuram disulphide, a-mercaptobenzothiazole and strontium peroxide in a closed environment to obtain modified isoprene rubber; (2) mixing MBS, PC, nano dysprosium oxide, zinc borate, sorbitan monostearate, attapulgite, magnesium hydrate and carbon fibers, and then carrying out first fusion; and adding the modified isoprene rubber in a first fusion system to carry out second fusion to obtain a fusion product; and (3) carrying out forming treatment on the fusion product to obtain the automotive spoiler cured in stages. In the step (1), pressure intensity in sulfidizing consists of high-pressure-intensity section and a low-pressure-intensity section alternately continuously, the pressure intensity of the high-pressure-intensity section is 2-4 MPa, and the pressure intensity of the low-pressure-intensity section is 0.1-0.5 MPa. The automotive spoiler cured in stages has excellent cold resistance.

Description

technical field [0001] The invention relates to automobile parts, in particular to a segmented vulcanized automobile spoiler and a preparation method thereof. Background technique [0002] The car spoiler refers to the additional plate installed above the rear of the car, also known as the car tail. The role of the car spoiler is mainly to reduce the lift at the rear of the vehicle; if the lift at the rear is greater than the lift at the front, it will easily lead to excessive steering, reduced rear wheel grip and poor high-speed stability. Like wind resistance, the lift force is proportional to the square of the vehicle speed, that is to say, the lift force at a speed of 120 kilometers per hour is 4 times that of a speed of 60 kilometers per hour, and 9 times that of a speed of 40 kilometers per hour. Therefore, cars with higher speeds, such as limousines and sports cars, are generally equipped with car spoilers. [0003] Because the car spoiler is located on the outside ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L9/00C08L33/02C08K13/04C08K7/06C08K3/38C08K3/22C08K3/34C08K5/40C08K5/47C08K3/18B29C49/00
CPCB29C49/00C08K2003/221C08K2003/2224C08K2003/387C08K2201/011C08L69/00C08L2205/03C08L9/00C08L33/02C08K13/04C08K7/06C08K3/38C08K3/22C08K3/346C08K5/40C08K5/47C08K3/18
Inventor 彭超昀莉袁辉龙
Owner 彭超昀莉