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Self-skinning microporous elastomer composite for polyurethane foam tire

A technology of microcellular elastomer and polyurethane, which is applied in the direction of pneumatic tires, special tires, tire parts, etc., can solve the problems that polyurethane foam tires cannot be prepared, and achieve good resilience, excellent mechanical properties, and high skin hardness. Effect

Active Publication Date: 2011-11-23
SHANDONG INOV POLYURETHANE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

CN1986592A reported a method for improving the mechanical properties of polyether polyurethane microcellular elastomers, but most of the microcellular elastomer materials mentioned in these patents are only used for polyurethane soles or insoles, and cannot be used for polyurethane foam tires preparation of
There are few reports on the polyether microcellular elastomer composite materials that can be used in polyurethane tires

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Weigh 85kg of polyether polyol (EP-330NG, product of Shandong Bluestar Dongda Chemical Co., Ltd.), 15kg of polymer polyol (POP36 / 28, product of Shandong Bluestar Dongda Chemical Co., Ltd.), and 1,4-butyl Glycol 12kg, ethylene glycol 7kg, glycerin 1kg, organosilicon foam stabilizer 8444 (product of Shanghai Goschmidt Chemical Co., Ltd.) 0.2kg, tertiary amine and organotin catalysts (A-33 and T-12) respectively 0.20 kg and 0.18 kg, 12 kg of blowing agent HCFC-141B, placed in a reaction kettle, fully mixed evenly at 25 ° C, discharged, sealed and stored.

[0026] Weigh 33.45kg of polyether polyol (EP-3600, product of Shandong Bluestar Dongda Chemical Co., Ltd.), place 1.76kg of dipropylene glycol in a reaction kettle, and dehydrate under vacuum (-0.09MPa) at a temperature of 100~110°C 1.5~2 hours, then lower the temperature to 30~50°C, add 61.62kg of 4,4-diphenylmethane diisocyanate (pure MDI), slowly raise the temperature to 80~85°C, keep it warm for 1.5~2 hours, add ...

Embodiment 2

[0029] Weigh 70kg of polyether polyol (EP-3600, product of Shandong Bluestar Dongda Chemical Co., Ltd.), 30kg of polymer polyol (POP36 / 28, product of Shandong Dongda Chemical Co., Ltd.), 1,4-butanediol 10kg, ethylene glycol 7kg, dipropylene glycol 2kg, glycerin 1kg, organosilicon foam stabilizer DC3043 (product of American Gas Chemical Products Co., Ltd.) 0.2kg, tertiary amines and organic tin catalysts (A-33 and T-12 ) were 0.3 kg and 0.08 kg respectively, and 12 kg of physical foaming agent HCFC-141B were placed in a reaction kettle, mixed thoroughly at 25°C, discharged, and sealed for storage.

[0030] Weigh 33.67kg of polyether polyol (EP-3600, product of Shandong Bluestar Dongda Chemical Co., Ltd.), place 2.53kg of dipropylene glycol in a reaction kettle, and dehydrate under vacuum (-0.09MPa) at a temperature of 100~110°C 1.5~2 hours, then lower the temperature to 30~50°C, add 60.54kg of 4,4-diphenylmethane diisocyanate (pure MDI), slowly raise the temperature to 80~8...

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PUM

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Abstract

The invention relates to a self-skinning microporous elastomer composite for a polyurethane foam tire. The composite is composed of a component A and a component B, wherein the component A comprises polyether polyol, polymer polyol, a cross-linking agent or / and a chain extender, a foam stabilizer, a catalyst and a foaming agent; the component B is alcohol-modified isocyanate with -NCO content of 18.0-20.0% by mass; and the mass ratio of the component A to the component B is 100: (70-100). The microporous elastomer material prepared from the composite has excellent mechanical performance, and can be used for replacing the existing conventional polyester sole raw material liquid to prepare the polyurethane foam tire.

Description

technical field [0001] The invention belongs to the field of polyurethane elastomers, in particular to a microporous polyurethane elastomer composition used for polyurethane foam tires. Background technique [0002] Self-skinned microcellular polyurethane elastomer is a polyurethane foam elastomer material that forms a surface material and a foam core material at one time during the foaming process. As a new type of material between foam and elastomer, it combines the good mechanical properties of elastomer and the comfort of foam material, with high strength, good toughness, light weight, stable compression stress transmission, oil or water resistance And excellent anti-fatigue performance and many other advantages, among which the excellent cushioning and shock absorption effect makes it gradually replace traditional rubber materials and is widely used in the preparation of soft parts of automobiles, such as tires. [0003] At present, the B material in the preparation of...

Claims

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Application Information

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IPC IPC(8): C08G18/78C08G18/66C08G18/42C08G18/63B60C1/00C08G101/00
CPCB60C1/00C08G18/78C08G18/12C08G18/42C08G2101/0066C08G18/7671C08G18/632B60C5/002C08G18/6674C08G18/66C08G18/63C08G2110/0066C08G18/4072C08L75/04
Inventor 孙清峰孙兆任栾森王琳琳牛富刚
Owner SHANDONG INOV POLYURETHANE
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