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Modified polypropylene air guide sleeve for van

A van and polypropylene technology, applied in the field of automobile spoilers, can solve the problems of high tensile strength and impact toughness, low use effect of spoilers, and easy deformation, etc., to achieve enhanced impact strength, Not easy to deform and improve the effect of bearing capacity

Pending Publication Date: 2020-11-20
安徽国泰智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the design of the top of the existing shroud increasingly reduces the air resistance when the truck is running, there are still certain defects in use. It is easy to deform when encountering excessive wind force, and has a negative impact on the tensile strength and impact toughness. higher requirements, resulting in lower use of the entire shroud

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A modified polypropylene fairing for a van, the raw materials of which include: 60kg of modified polypropylene, 20kg of polyethylene, 5kg of polyvinyl chloride, 5kg of maleic anhydride grafted polypropylene, 1kg of maleic anhydride, potassium titanate Whiskers 5kg, magnesium stearate 2kg, glass fiber 10kg, allyl chloroacetate 0.1kg, 3-methyl-2-butenal 0.5kg, tetraethoxymethane 1kg, paraffin 2kg, zinc oxide 0.7kg, Pigment 0.3kg.

[0023] During the preparation of modified polypropylene, mix 10kg of nano-silica, 1kg of silane coupling agent KH570, and 100kg of 65% ethanol solution, reflux and stir at 80°C for 20min, add 50kg of polypropylene, heat up to 140°C and reflux and stir 6min, filtered, washed, dried, and pulverized to obtain modified polypropylene.

[0024] The preparation method of the above-mentioned van truck with modified polypropylene shroud comprises the following steps:

[0025] Put the raw materials in a mixer with a rotating speed of 400r / min, and mix ...

Embodiment 2

[0029] A modified polypropylene fairing for a van, the raw materials of which include: 80kg of modified polypropylene, 10kg of polyethylene, 15kg of polyvinyl chloride, 2kg of maleic anhydride grafted polypropylene, 2kg of maleic anhydride, potassium titanate Whiskers 1kg, magnesium stearate 4kg, glass fiber 4kg, allyl chloroacetate 0.5kg, 3-methyl-2-butenal 0.1kg, tetraethoxymethane 2kg, paraffin 1kg, zinc oxide 1kg, pigment 1kg.

[0030] During the preparation of modified polypropylene, mix 4kg of nano-silica, 2kg of silane coupling agent KH570, and 50kg of 80% ethanol solution, stir at 70°C for 30 minutes, add 40kg of polypropylene, heat up to 160°C and stir at reflux 2min, filtered, washed, dried, and pulverized to obtain modified polypropylene.

[0031] The preparation method of the above-mentioned van truck with modified polypropylene shroud comprises the following steps:

[0032] Put the raw materials in a mixer with a rotating speed of 600r / min, and mix them at 70°C ...

Embodiment 3

[0036] A modified polypropylene fairing for a van, the raw materials of which include: 65kg of modified polypropylene, 17kg of polyethylene, 8kg of polyvinyl chloride, 4kg of maleic anhydride grafted polypropylene, 1.3kg of maleic anhydride, titanic acid Potassium whiskers 4kg, magnesium stearate 2.5kg, glass fiber 8kg, allyl chloroacetate 0.2kg, 3-methyl-2-butenal 0.4kg, tetraethoxymethane 1.3kg, paraffin 1.8kg, oxidation Zinc 0.9kg, pigment 0.4kg.

[0037] During the preparation of modified polypropylene, mix 8kg of nano-silica, 1.3kg of silane coupling agent KH570, and 80kg of 70% ethanol solution, reflux and stir at 77°C for 22min, add 47kg of polypropylene, and heat up to 145°C to reflux Stir for 5 minutes, filter, wash, dry, and pulverize to obtain modified polypropylene.

[0038] The preparation method of the above-mentioned van truck with modified polypropylene shroud comprises the following steps:

[0039] Put the raw materials in a mixer with a rotating speed of 45...

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PUM

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Abstract

The invention discloses a modified polypropylene air guide sleeve for a van. The raw materials comprise the following components in parts by weight: 60 to 80 parts of modified polypropylene; 10-20 parts of polyethylene, 5-15 parts of polyvinyl chloride, 2-5 parts of maleic anhydride grafted polypropylene, 1-2 parts of maleic anhydride, 1-5 parts of potassium titanate whiskers, 2-4 parts of magnesium stearate, 4-10 parts of glass fibers, 0.1-0.5 part of allyl chloroacetate, 0.1-0.5 part of 3-methyl-2-butenal, 1-2 parts of tetraethoxymethane, 1-2 parts of paraffin and 1-2 parts of auxiliaries. The invention discloses a preparation method of the modified polypropylene air guide sleeve for the van. The preparation method comprises the following steps: mixing raw materials to obtain a premix; granulating the premix to obtain granules; adding the granules into an injection molding machine to form a melt, injecting the melt into a cavity of a mold, maintaining the pressure of the mold at 70-80 DEG C and 15-25 MPa for 10-20 seconds, and cooling to obtain the modified polypropylene air guide sleeve for the van.

Description

technical field [0001] The invention relates to the technical field of automobile wind deflectors, in particular to a modified polypropylene wind deflector for van trucks and a preparation method thereof. Background technique [0002] With the rapid development of my country's traffic construction, the expressway network between cities has expanded rapidly. Compared with cars, the box body of a van has a larger frontal area, and its drag reduction and energy saving problems have become increasingly prominent. When the vehicle is running, the air resistance is unavoidable, and it is generally overcome by the traction provided by the car engine. The faster the speed, the greater the aerodynamic resistance the car has to overcome, and a large amount of fuel efficiency is lost. Reducing the air resistance of the truck and minimizing the fuel consumption of the car engine has attracted more and more countries' attention. [0003] The air deflector is an air guide device installe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/06C08L27/06C08L51/06C08K13/04C08K3/36C08K5/5425C08K7/14C08K5/098C08K7/08
CPCC08L23/12C08L2205/02C08L2205/035C08K2201/011C08L23/06C08L27/06C08L51/06C08K13/04C08K3/36C08K5/5425C08K7/14C08K5/098C08K7/08
Inventor 徐文祥许心勇黄先军王玉
Owner 安徽国泰智能科技有限公司
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