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Low cost polyurethane material for safe tyre internal filling and using method thereof

A technology of polyurethane material and safety tire, applied in the field of tire inner filling material, can solve the problems of high cost, large amount of polyether, high viscosity, etc., and achieve the effects of simple operation, low raw material cost and fast filling speed

Active Publication Date: 2017-02-15
LIMING RES INST OF CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the viscosity of components A and B of the composition is high, which is not conducive to mixing and filling; the amount of polyether is large and the cost is high

Method used

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  • Low cost polyurethane material for safe tyre internal filling and using method thereof
  • Low cost polyurethane material for safe tyre internal filling and using method thereof

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Embodiment Construction

[0021] The present invention is described in detail below in conjunction with embodiment. The used raw material of embodiment formula:

[0022] (1) PPG 1 uses glycerin as the initiator of ethylene oxide and propylene oxide block polyols, with a functionality of 3 and a hydroxyl value of 36.

[0023] (2) PPG 2 uses glycerol as the initiator of ethylene oxide and propylene oxide block polyols, with a functionality of 3 and a hydroxyl value of 24.

[0024] (3) PPG 3 uses glycerin as the initiator of ethylene oxide and propylene oxide block polyols, with a functionality of 3 and a hydroxyl value of 28.

[0025] (4) PPG 4 uses ethylene glycol as the initiator of ethylene oxide and propylene oxide block polyols, with a functionality of 2 and a hydroxyl value of 28.

[0026] Embodiment 1-4 raw material parts by weight are shown in Table 1, raw materials (15), (16) and (3), (14) were stirred and reacted rapidly at 90 DEG C for 2 hours, and prepolymer was made, and (7)( 8) (9) (10) ...

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Abstract

The invention discloses a low cost polyurethane material for safe tyre internal filling and a using method thereof, and the low cost polyurethane material comprises components A and B, the component A comprises, by weight, 5%-15% of diisocyanate, 15%-40% of a polyether polyol a and 50%-75% of a diluent; and the component B includes, by weight, 20%-47.5% of a polyether polyol b, 1%-5% of a chain extender, 1%-5% of a crosslinking agent, 50%-75% of the diluent, 0.3%-1.0% of a catalyst and 0-2% of an antioxidant. The polyether polyol a is selected from a polypropylene oxide ether polyol with the functionality of 2 or 3 and the molecular weight of 2000-5000, the polyether polyol b is selected from a polypropylene oxide ether polyol with the functionality of 2 or 3 and the molecular weight of 4000-8000, the diluent is selected from naphthenic oil, aromatic hydrocarbon oil, tris(clorisopropyl) phosphate and 2,2,4-trimethyl-1,3-pentanediol diisobutyrate. The material is low in raw liquid viscosity and low in cost, and after mixing, operable time is long, and filling speed is fast.

Description

technical field [0001] The present invention relates to a tire inner filling material, in particular to a polyurethane material for tire filling. Background technique [0002] The polyurethane material filled inside the safety tire is a new type of tire filling material, which has the advantages of good physical properties, easy adjustment of hardness, fast recovery from deformation, less hysteresis heat generation, less product defects, and long service life. Filling tires with polyurethane materials uses a static mixer to mix raw materials and fill at room temperature. The products do not need to be cured at high temperatures and consume less energy. The production cycle is short and the production efficiency is high, which can save a lot of manpower and material resources and facilitate continuous production. [0003] Patent document CN102585147A discloses a polyurethane elastomer composition for engineering equipment, which adopts a two-component system, one is component...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/76C08G18/66C08G18/48C08G18/32C08G18/12C08G18/08
CPCC08G18/0842C08G18/0852C08G18/12C08G18/4816C08G18/4837C08G18/7607C08G18/7614C08G18/7671C08G18/6685C08G18/664
Inventor 杜俊超孙海欧赵修文于文杰
Owner LIMING RES INST OF CHEM IND
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