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Glass fiber reinforced TPU material for automobile bumper bar and preparation method thereof

A technology of automobile anti-collision rods and glass fiber, which is applied in the field of polymer material synthesis, can solve the problems of limited mechanical properties of materials, harm to operators, complex production process, etc., and achieve high production efficiency, low cost and high strength. Effect

Inactive Publication Date: 2019-01-18
SHANDONG INOV POLYURETHANE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Among the currently used glass fiber reinforced TPU materials, the patent CN1432593A uses a glass fiber reinforced polyurethane skeleton with a length of 3 to 5 mm. This method uses a foaming process, which requires the use of a large amount of organic solvents, which is harmful to the health of the operator. The mechanical properties of the material The improvement is limited; the patent CN102532864A uses long glass fiber reinforced TPU material, and the glass fiber content in the finished product accounts for 39% to 42%. The glass fiber is dispersed through the impregnation equipment, the production process is complex and easy to shrink during processing, and the cost is high

Method used

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  • Glass fiber reinforced TPU material for automobile bumper bar and preparation method thereof
  • Glass fiber reinforced TPU material for automobile bumper bar and preparation method thereof
  • Glass fiber reinforced TPU material for automobile bumper bar and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The invention provides a glass fiber reinforced TPU material used for automobile bumper bars, comprising the following components and parts by weight:

[0024]

[0025] in:

[0026] The TPU particles are polyester TPU with a Shore hardness of 75A and a melt index of 50g / 10min under the test conditions of 10Kg and 185°C. The glass fiber is a short glass fiber with a length of 2 to 3mm. The antioxidant is Antioxidant 168. The heat stabilizer is tin dimethyl mercaptide. The flame retardant is an organic-inorganic composite flame retardant, and the organic flame retardant is triphenyl phosphate (TPP); the inorganic flame retardant is antimony oxide and zinc borate. The dispersant is modified ethylene bis stearic acid amide TAF.

[0027] Specifically include the following steps:

[0028] (1) The dried TPU particles, antioxidant, thermal stabilizer, and fire retardant that take parts by weight are added to the hopper of the twin-screw extruder to stir and mix; the mix...

Embodiment 2

[0031] The invention provides a glass fiber reinforced TPU material used for automobile bumper bars, comprising the following components and parts by weight:

[0032]

[0033] Among them: the TPU particles are polyester TPU with a Shore hardness of 85A and a melt index of 30g / 10min under the test conditions of 10Kg and 195°C. The glass fiber is a short glass fiber with a length of 2 to 3mm. The antioxidant is Antioxidant 168. The heat stabilizer is tin dimethyl mercaptide. The flame retardant is an organic-inorganic composite flame retardant, wherein the organic flame retardant is ammonium polyphosphate (APP); the inorganic flame retardant is antimony oxide and aluminum hydroxide. The dispersant is modified ethylene bis stearic acid amide TAF. According to the steps of Example 1, the TPU material used for automobile bumper bars was prepared, and the performance test results are shown in Table 1.

Embodiment 3

[0035] The invention provides a glass fiber reinforced TPU material used for automobile bumper bars, comprising the following components and parts by weight:

[0036]

[0037] in:

[0038] The TPU particles are polyester TPU with a Shore hardness of 95A and a melt index of 50g / 10min under the test conditions of 10Kg and 205°C. The glass fiber is a short glass fiber with a length of 2 to 3mm. The antioxidant is Antioxidant 168. The heat stabilizer is tin dimethyl mercaptide. The flame retardant is an organic-inorganic composite flame retardant, in which the organic flame retardant is a mixture of triphenyl phosphate (TPP) and ammonium polyphosphate (APP); the inorganic flame retardant is a mixture of antimony oxide, zinc borate and aluminum hydroxide . The dispersant is modified ethylene bis stearic acid amide TAF. According to the steps of Example 1, the TPU material used for automobile bumper bars was prepared, and the performance test results are shown in Table 1.

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Abstract

The invention belongs to the technical field of high polymer material synthesis and specifically relates to a glass fiber reinforced TPU material for an automobile bumper bar and a preparation methodthereof. The glass fiber reinforced TPU material comprises the following raw materials in parts by weight: 100-200 parts of TPU particles, 20-30 parts of glass fibers, 2-4 parts of antioxidants, 1-6 parts of heat stabilizers, 10-15 parts of fire retardants and 1-2 parts of dispersing agents. According to the invention, short glass fibers are adopted for reinforcing the performance of TPU material;a technology of dispersing and adding short glass fibers is adopted for guaranteeing that the glass fibers are uniformly dispersed in the material, so that the strength, shock resistance and heat resistance of the material are greatly promoted; when the material is used for preparing the automobile bumper bar, the product is free from shrinkage.

Description

technical field [0001] The invention belongs to the technical field of polymer material synthesis, and in particular relates to a glass fiber-reinforced TPU material for automobile bumper bars and a preparation method thereof. Background technique [0002] TPU has good processability, weather resistance and environmental protection, and is widely used in shoe materials, pipes, films, rollers, cables and wires and other industries. TPU is characterized by excellent wear resistance, excellent ozone resistance, low temperature resistance, oil resistance, chemical resistance and environmental resistance. The thermoplastic polyurethane elastomer material itself is not high in strength and poor in heat resistance, which greatly limits its application in other fields; adding glass fiber can greatly improve the strength and rigidity of TPU. [0003] Among the currently used glass fiber reinforced TPU materials, the patent CN1432593A uses a glass fiber reinforced polyurethane skelet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/06C08K13/04C08K7/14C08K5/526C08K5/58C08K3/22B29B9/06B29C48/92
CPCB29B9/06C08K3/2279C08K5/526C08K5/58C08K7/14C08K13/04C08L2201/08C08L75/06
Inventor 陈淑海马超高振胜范文庆
Owner SHANDONG INOV POLYURETHANE