Wear-resistant flame-retardant TPU material and preparation method thereof

A composite flame retardant and raw material technology, applied in the field of TPU materials, can solve problems such as surface wear and affect the service life of TPU, and achieve the effects of strong heat insulation, good rigidity, and improved wear resistance

Pending Publication Date: 2021-12-31
荣威达光电(东莞)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the TPU in the related art generally has good comprehensive properties in terms of elasticity and mechanics, but during the long-term use of the TPU, the surface will be worn, which will affect the service life of the TPU.

Method used

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  • Wear-resistant flame-retardant TPU material and preparation method thereof
  • Wear-resistant flame-retardant TPU material and preparation method thereof
  • Wear-resistant flame-retardant TPU material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0042] A modified calcium sulfate dihydrate whisker prepared by the following method:

[0043] S1: Mix 10kg of calcium oxide and 90kg of water evenly to obtain a calcium hydroxide suspension, then place the calcium hydroxide suspension at a temperature of 70°C and stir at a speed of 150r / min for 25min;

[0044] S2: Heat the calcium hydroxide suspension to 90°C, stir at a speed of 380r / min, and at the same time add concentrated sulfuric acid dropwise to the calcium hydroxide suspension at a flow rate of 1mL / min for 30min, then Insulate for 35 minutes, cool down, then carry out suction filtration, put the filter residue at a temperature of 80°C and dry to constant weight to obtain calcium sulfate dihydrate whiskers;

[0045] S3: Put calcium sulfate dihydrate whiskers into ethanol solution to prepare a suspension of calcium sulfate dihydrate whiskers with a calcium sulfate dihydrate whisker concentration of 8%, raise the temperature to 75°C, Add tetrabutyl titanate to the suspen...

preparation example 2

[0048] A modified calcium sulfate dihydrate whisker prepared by the following method:

[0049] S1: Mix 11kg of calcium oxide and 95kg of water evenly to obtain a calcium hydroxide suspension, then place the calcium hydroxide suspension at a temperature of 75°C and stir at a speed of 200r / min for 30min;

[0050] S2: Heat the calcium hydroxide suspension to 95°C, stir at a speed of 400r / min, and at the same time add concentrated sulfuric acid dropwise to the calcium hydroxide suspension at a flow rate of 2mL / min for 35min, then Insulate for 40 minutes, cool down, and then perform suction filtration, put the filter residue at a temperature of 90°C and dry to constant weight to obtain calcium sulfate dihydrate whiskers;

[0051] S3: Put calcium sulfate dihydrate whiskers into ethanol solution to prepare a suspension of calcium sulfate dihydrate whiskers with a calcium sulfate dihydrate whisker concentration of 9%, raise the temperature to 80°C, Add tetrabutyl titanate to the susp...

preparation example 3

[0054] A modified calcium sulfate dihydrate whisker prepared by the following method:

[0055] S1: Mix 12kg of calcium oxide and 100kg of water evenly to obtain a calcium hydroxide suspension, then put the calcium hydroxide suspension at a temperature of 80°C and stir at a speed of 250r / min for 35min;

[0056] S2: Warm up the calcium hydroxide suspension to 100°C, stir at a speed of 420r / min, and at the same time add concentrated sulfuric acid dropwise to the calcium hydroxide suspension at a flow rate of 3mL / min for 40min, then Insulate for 45 minutes, cool down, and then carry out suction filtration, put the filter residue at a temperature of 100°C and dry to constant weight to obtain calcium sulfate dihydrate whiskers;

[0057] S3: Put calcium sulfate dihydrate whiskers into ethanol solution to prepare a suspension of calcium sulfate dihydrate whiskers with a calcium sulfate dihydrate whisker concentration of 10%, raise the temperature to 85°C, Add tetrabutyl titanate to t...

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Abstract

The invention relates to the technical field of TPU materials, and particularly discloses a wear-resistant flame-retardant TPU material and a preparation method thereof. The TPU material is prepared from the following raw materials in parts by weight: 60 to 100 parts of polyurethane, 15 to 30 parts of epoxy resin, 3 to 10 parts of di-o-chlorodiphenylamine methane, 20 to 50 parts of polyethylene, 10 to 28 parts of modified calcium sulfate dihydrate whisker, 10 to 28 parts of composite flame retardant and 2 to 6 parts of silicone oil. The preparation method comprises the following steps: uniformly mixing the silicone oil and the modified calcium sulfate dihydrate whisker to obtain a mixture A; uniformly mixing polyurethane, epoxy resin, di-o-chlorodiphenylamine methane and polyethylene to obtain a mixture B; then adding the composite flame retardant into the mixture B, and uniformly stirring to obtain a mixture C; finally, uniformly mixing the mixture A and the mixture C to prepare the wear-resistant and flame-retardant TPU material. The wear-resistant flame-retardant TPU material disclosed by the invention has the advantages of high wear resistance and high flame retardance.

Description

technical field [0001] This application relates to the technical field of TPU materials, more specifically, it relates to a wear-resistant and flame-retardant TPU material and a preparation method thereof. Background technique [0002] The name of TPU is thermoplastic polyurethane elastomer rubber. TPU is a polymer material formed by the reaction and polymerization of diisocyanate molecules such as diphenylmethane diisocyanate or toluene diisocyanate, macromolecular polyols and low molecular polyols. TPU material has a relatively special soft and hard block copolymer structure, which has high strength and excellent mechanical properties. Compared with other elastic materials, TPU has a wider range of hardness and can be reprocessed. The load-bearing capacity and impact resistance of TPU products Excellent performance and shock absorption. [0003] At present, the TPU in the related art generally has good comprehensive properties in terms of elasticity and mechanics. However...

Claims

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Application Information

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IPC IPC(8): C08L75/04C08L63/00C08L23/06C08L83/04C08K9/04C08K7/08C08K5/18C08K3/32C08K3/04C08K5/053C08K3/22C08K7/26
CPCC08L75/04C08L2201/02C08K2003/323C08L2207/04C08K2003/2227C08L2201/08C08L63/00C08L23/06C08L83/04C08K9/04C08K7/08C08K5/18C08K3/32C08K3/04C08K5/053C08K3/22C08K7/26Y02W30/91
Inventor 周芳李湘岳
Owner 荣威达光电(东莞)有限公司
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