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Special material for sports helmet and preparation method thereof

A helmet and sports technology, which is applied in the field of special materials for sports helmets and its preparation, can solve the problems of high temperature resistance and wear resistance, hardness and tear strength that cannot meet the requirements, and reduce the use effect of TPU. , to improve the anti-strike performance, inhibit the growth of bacteria, and avoid the effect of scalp itching

Inactive Publication Date: 2018-11-20
江苏绿艳高分子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In many sports, sports helmets are essential protective equipment, but the requirements for high-quality protective equipment may also have problems such as lightness, wear resistance, impact resistance, and bacterial growth due to excessive sweating due to exercise. The existing TPU production material takes a long time to form in the production process, and its high temperature resistance and wear resistance cannot meet good indicators, and its hardness and tear strength cannot meet the requirements, which reduces the TPU The effect of using

Method used

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  • Special material for sports helmet and preparation method thereof
  • Special material for sports helmet and preparation method thereof
  • Special material for sports helmet and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0047] The preparation method of the solvent: take 22-30% by weight of methyl acetate, 22-28% by weight of tetrahydrofuran, 30-39% by weight of acetone and 3-8% by weight of toluene into a mixing vessel to mix.

[0048] The stabilizing agent is one of barium stearate and calcium stearate.

[0049] The reinforcing agent is phenolic resin.

Embodiment 1

[0052] 1. Weigh 20% by weight of PEBA-2000; 4% by weight of 1,4-BDO; 24% by weight of MDI; 8% by weight of antibacterial SBR; 0.5% by weight of nano silver; 2% by weight 1% by weight of white carbon black; 0.2% by weight of antioxidant; 5% by weight of stabilizer; 6% by weight of reinforcing agent; 18% by weight of solvent.

[0053] 2. Put 1,4-BDO and PEA-2000 in the No. 1 reactor, stir and mix evenly at a constant speed, and set the temperature at 95°C; place MDI in the No. 2 reactor, and set the temperature at 75°C;

[0054] 3. Pour the solvent into the No. 3 reaction kettle, then put the antibacterial SBR into the No. 3 reaction kettle, and stir for 3 hours. After the antibacterial SBR in the No. 3 reaction kettle is completely dissolved, add white carbon black, antioxidant, nano-silver, Chitosan, stabilizer, reinforcing agent, stirring for 1.5 hours, etc. are all dissolved;

[0055]4. When the temperature is stable, mix through the high-speed rotating mixing head with a p...

Embodiment 2

[0061] 1. Weigh 38% by weight of PEBA-2000; 8% by weight of 1,4-BDO; 24% by weight of MDI; 16% by weight of antibacterial SBR; 1% by weight of nano silver; 3% by weight 3% by weight of white carbon black; 0.4% by weight of antioxidant; 6% by weight of stabilizer; 8% by weight of reinforcing agent; 22% by weight of solvent.

[0062] 2. Put 1,4-BDO and PEA-2000 in the No. 1 reactor, stir and mix evenly at a constant speed, and set the temperature at 105°C; place MDI in the No. 2 reactor, and set the temperature at 85°C;

[0063] 3. Pour the solvent into the No. 3 reaction kettle, then put the antibacterial SBR into the No. 3 reaction kettle, and stir for 5 hours. After the antibacterial SBR in the No. 3 reaction kettle is completely dissolved, add white carbon black, antioxidant, nano-silver, Chitosan, stabilizer, reinforcing agent, stirring for 3 hours, etc. are all dissolved;

[0064] 4. When the temperature is stable, it is mixed through the high-speed rotating mixing head w...

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Abstract

The invention discloses a special material for a sports helmet and a preparation method thereof. The special material comprises 20-38 percent by weight of PEBA-2000, 4-8 percent by weight of 1,4-BDO,24-38 percent by weight of MDI, 8-16 percent by weight of antibacterial SBR, 0.5-1 percent by weight of nano-silver, 2-3 percent by weight of chitosan, 1-3 percent by weight of white carbon black, 0.2-0.4 percent by weight of antioxidant, 5-6 percent by weight of stabilizing agent, 6-8 percent by weight of reinforcing agent and 18-22 percent by weight of solvent. The special material disclosed bythe invention achieves good earthquake and wear resistance while having better impact resistance and good toughness, and can inhibit the growth of bacteria and fungi, so that scalp itching caused by fungi and bacteria growth in the helmet is avoided; and the use effect of the product is improved, and the impact resistance of the helmet is effectively improved.

Description

technical field [0001] The invention relates to the field of sports equipment, in particular to a special material for sports helmets and a preparation method thereof. Background technique [0002] When the existing TPU production materials are applied to many fields, they often have strict requirements for their various performance indicators, especially high temperature resistance, wear resistance, hardness and toughness. [0003] In many sports, sports helmets are essential protective equipment, but the requirements for high-quality protective equipment may also have problems such as lightness, wear resistance, impact resistance, and bacterial growth due to excessive sweating due to exercise. The existing TPU production material takes a long time to form in the production process, and its high temperature resistance and wear resistance cannot meet good indicators, and its hardness and tear strength cannot meet the requirements, which reduces the TPU use effect. Content...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/06C08L9/06C08L5/08C08L61/06C08K13/02C08K5/098C08K3/08C08K3/36C08G18/32C08G18/42C08G18/66
CPCC08G18/3206C08G18/4238C08G18/664C08K2003/0806C08K2201/011C08L75/06C08L2205/035C08L9/06C08L5/08C08L61/06C08K13/02C08K5/098C08K3/08C08K3/36
Inventor 方超
Owner 江苏绿艳高分子材料有限公司