Polyurethane engineering tire for mine use and preparation method thereof

A technology for engineering tires and polyurethane, applied in the field of organic polymer material products, can solve the problems of non-abrasion-resistant engineering tires, large pollution and environmental protection, short service life, etc., and achieves low processing cost, no production equipment, and long service life. Effect

Active Publication Date: 2013-12-11
淄博启明星新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the existing technologies use rubber to make engineering tires, the process is complex, the cost is high, and the pollution is not environmentally frien

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The polyol is made by mixing polyester polyol 218 and polytetrahydrofuran ether at a weight ratio of 2:6.

[0028] (1) Heat 50g of polyol to 110°C for 4 hours in vacuum dehydration, lower to 70°C, add 25g of TDI T100, control the temperature at 90°C, mix and react for 2 hours to prepare semi-prepolymer;

[0029] (2) Heat 50g of polyol to 110°C for 4 hours for vacuum dehydration, lower it to 70°C, and mix it with 10g of curing agent DADMT;

[0030] (3) Mix the products prepared in step (1) and step (2), add the reaction control agent dibutyltin dilaurate T120.01mg, stir and react for 10 minutes, inject the mold into an oven at 120°C, and vulcanize for 20 Hours, then unmould.

[0031] Carry out performance test to the engineering tire prepared in embodiment 1:

[0032] The hardness of the tire prepared in Example 1 is 90 degrees Shore A; the hardness of the rubber tire is about 70 degrees, and the hardness of ordinary polyurethane is adjustable from 15 to 90 degrees.

...

Embodiment 2

[0036] (1) Heat 24kg of polyol to 115°C for 6 hours and vacuum dehydrate it for 6 hours, lower it to 75°C, add 20kg of TDI T100, control the temperature at 98°C, and mix for 4 hours to prepare a semi-prepolymer;

[0037] (2) Heat 16kg of polyol to 115°C for 6 hours in vacuum dehydration, lower it to 75°C, and mix it with 10kg of curing agent DADMT;

[0038] (3) Mix the products prepared in step (1) and step (2), add a drop of 0.01 mg of the reaction control agent dibutyltin dilaurate, stir and react for 10 minutes, inject the mold into an oven at 120°C, and vulcanize for 20 Hours, then unmould.

[0039] Among them: polyol is made by mixing polyester polyol 218 and polytetrahydrofuran ether at a weight ratio of 2:10.

[0040] Carry out performance test to the engineering tire prepared in embodiment 2:

[0041] The hardness of the tire prepared in Example 2 is Shore A90 degrees; the hardness of the rubber tire is about 70 degrees, and the hardness of ordinary polyurethane is a...

Embodiment 3

[0045] (1) Heat 48kg of polyol to 120°C for 8 hours and vacuum dehydrate it for 8 hours, lower it to 75°C, add 30kg of TDI T100, control the temperature at 78°C, and mix for 4 hours to prepare a semi-prepolymer;

[0046] (2) Heat 72kg of polyol to 120°C for 8 hours for vacuum dehydration, lower it to 75°C, and mix it with 15kg of curing agent DADMT;

[0047] (3) Mix the products prepared in step (1) and step (2), add a drop of 0.01 mg of the reaction control agent dibutyltin dilaurate, stir and react for 10 minutes, inject the mold into an oven at 120°C, and vulcanize for 20 Hours, then unmould.

[0048] Among them: polyol is made by mixing polyester polyol 218 and polytetrahydrofuran ether at a weight ratio of 2:8.

[0049] Carry out performance test to the engineering tire that embodiment 3 prepares:

[0050] The hardness of the tire prepared in Example 3 is 90 degrees Shore A; the hardness of the rubber tire is about 70 degrees, and the hardness of ordinary polyurethane i...

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Abstract

The invention belongs to the technical field of organic polymer material products, and in particular relates to a polyurethane engineering tire for mine use and a preparation method thereof. The polyurethane engineering tire is made from the following materials in parts by weight: 0.8-1.2 parts of polyol, 0.25-0.4 part of polyisocyanate, 0.1-0.2 part of curing agent, and 0.00001 part of reaction control agent, wherein polyol is made by mixing polyester polyol 218 and polytetrahydrofuran at a weight ratio of 2:(6-10). The invention further provides a preparation method of the polyurethane engineering tire, which comprises first preparing a performed polymer and a curing component and then casting to obtain the final product. The prepared and obtained engineering tire has a wear resistance 3-10 times as that of rubber, a large load bearing capacity and a penetration resistance. Besides, the generation of internal heat of this process is low, the service life is long and is 2-4 times as that of a rubber tire. Furthermore, the fabrication cost is low, and the pollution is eliminated. The polyurethane engineering tire has the advantages of low cost, good elasticity, low rolling resistance, low heat generation and the like. A preparation method thereof is further provided, which has a simple process and a low cost.

Description

technical field [0001] The invention belongs to the technical field of organic polymer material products, and in particular relates to a polyurethane engineering tire for mines and a preparation method thereof. Background technique [0002] Due to the rapid increase in automation of the underground mining industry in recent years, the market demand for engineering tires has increased sharply. In addition, traditional rubber tires have higher technical requirements for production technology, stricter requirements for production equipment precision, and huge investment. [0003] Most of the prior art adopts rubber to make engineering tires, which has complicated process, high cost, great pollution and is not environmentally friendly. The produced OTR products have disadvantages such as non-wear resistance, oil resistance, puncture resistance, small bearing capacity, and short service life. Contents of the invention [0004] The object of the present invention is to provide ...

Claims

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Application Information

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IPC IPC(8): C08G18/76C08G18/66C08G18/42C08G18/48C08G18/32C08G18/10C08L75/06C08L75/08
Inventor 辛浩波张合军张宗喜高宗山张雪颖
Owner 淄博启明星新材料股份有限公司
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