Automobile bumper and preparation method thereof

A technology for automobile bumpers and materials, which is applied in the field of bumper preparation and can solve problems such as poor impact resistance

Active Publication Date: 2021-09-14
CIXI LONGSHAN AUTOMOBILE PART
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a new automobile bumper and a preparation method thereof for the deficiencies such as poor impact resistance of the materials used for automobile bumpers in t

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] S1: Mix 70g of polypropylene matrix, 15g of polyolefin elastomer and 3g of polyvinylpyrrolidone, melt and mix until uniform at a temperature of 160°C; then add 1g of glycerol, raise the temperature to 261°C at a rate of 3°C / min, and keep warm for the reaction 5min, get material A;

[0027] S2: Mix 1g nano-molybdenum disulfide, 0.5g nano-silicon dioxide, 1g graphene powder and 20g absolute ethanol to obtain material B; add material B to step S1, and stir and react at a temperature of 80°C for 25min to obtain Material C;

[0028] S3: Add 2 g of seaweed fiber, 1 g of magnesium sulfate whiskers, and 3 g of lauryl acrylate to the material C described in step S2, raise the temperature to 140-160° C., and stir for 30-50 minutes to obtain material D;

[0029] S4: React 1 g of wollastonite with 0.5 g of titanate coupling agent to obtain modified wollastonite; then add it to step S3, and continue to stir and react at a temperature of 160° C. for 25 minutes to obtain material E; ...

Embodiment 2

[0032] S1: Mix 90g of polypropylene matrix, 25g of polyolefin elastomer and 5g of polyvinylpyrrolidone, melt and mix until uniform at a temperature of 180°C; then add 3g of glycerol, raise the temperature to 280°C at a rate of 5°C / min, and keep warm for the reaction 10min, get material A;

[0033] S2: Mix 3g nano-molybdenum disulfide, 1g nano-silica, 3g graphene powder and 30g absolute ethanol to obtain material B; add material B to step S1, and stir and react at a temperature of 100°C for 35min to obtain material C;

[0034] S3: Add 5 g of seaweed fiber, 3 g of magnesium sulfate whiskers, and 6 g of lauryl acrylate to the material C described in step S2, raise the temperature to 160° C., stir and react for 50 minutes, and obtain material D;

[0035] S4: react 3g of wollastonite and 1.5g of titanate coupling agent to obtain modified wollastonite; then add it to step S3, and continue to stir and react at a temperature of 180°C for 45min to obtain material E;

[0036]S5: Put t...

Embodiment 3

[0038] S1: Mix 80g of polypropylene matrix, 18g of polyolefin elastomer and 4g of polyvinylpyrrolidone, melt and mix until uniform at a temperature of 175°C; then add 2g of glycerol, raise the temperature to 270°C at a rate of 2°C / min, and keep warm for the reaction 8min, get material A;

[0039] S2: Mix 2g nano-molybdenum disulfide, 0.8g nano-silicon dioxide, 2.5g graphene powder and 25g absolute ethanol to obtain material B; add material B to step S1, and stir and react at a temperature of 90°C for 35min, Get material C;

[0040] S3: Add 4 g of seaweed fiber, 2 g of magnesium sulfate whiskers, and 4 g of lauryl acrylate to the material C described in step S2, raise the temperature to 150° C., stir and react for 35 minutes, and obtain material D;

[0041] S4: react 2g of wollastonite with 1g of titanate coupling agent to obtain modified wollastonite; then add it to step S3, and continue to stir and react at a temperature of 170°C for 30 minutes to obtain material E;

[0042...

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PUM

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Abstract

The invention provides an automobile bumper. The automobile bumper is prepared from the following raw materials in parts by weight: 70 to 90 parts of a polypropylene matrix, 15 to 25 parts of a polyolefin elastomer, 3 to 5 parts of polyvinylpyrrolidone, 1 to 3 parts of glycerol, 1 to 3 parts of nano molybdenum disulfide, 0.5 to 1 part of nano silicon dioxide, 1 to 3 parts of graphene powder, 20 to 30 parts of absolute ethyl alcohol, 2 to 5 parts of alginate fibers, 1 to 3 parts of magnesium sulfate whiskers, 3 to 6 parts of lauryl acrylate, 1-3 parts of wollastonite and 0.5-1.5 parts of a titanate coupling agent. According to the prepared automobile bumper, through a two-phase composite system of a net structure and a hole structure, the requirement for light weight is met, and the excellent impact resistance, flame retardance and other performance are achieved.

Description

technical field [0001] The invention relates to the technical field of bumper preparation, in particular to an automobile bumper and a preparation method thereof. Background technique [0002] Automobile bumper is a relatively important large-scale component in the automobile industry. It not only plays the role of decoration and beauty, but also protects the body in low-speed collisions and acts as a buffer for the driver. Its use environment requires excellent high and low temperature impact toughness, rigidity, aging resistance, heat resistance, cold resistance, and oil, lubricating oil, paint and other properties. Among them, the most important ones are high impact toughness and good formability. [0003] At present, most of the materials for automobile bumpers are toughened polypropylene (PP) and blends of ethylene-propylene elastomers and polyolefins (PP / EPDM), etc., which have better tensile strength and rigidity in terms of mechanical properties, but impact resistan...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/00C08L39/06C08L5/04C08K13/06C08K3/30C08K3/36C08K3/04C08K9/04C08K3/34C08K7/08C08K5/101
CPCC08L23/12C08L2201/02C08L2205/02C08L2205/035C08L2205/16C08K2201/011C08K2003/3009C08L23/00C08L39/06C08L5/04C08K13/06C08K3/30C08K3/36C08K3/042C08K9/04C08K3/34C08K7/08C08K5/101
Inventor 金云康
Owner CIXI LONGSHAN AUTOMOBILE PART
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