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Polyurethane sports knee-pad composition and preparation method thereof

A technology of polyurethane and composition, applied in the field of polyurethane sports knee pad composition and its preparation, can solve the problems such as the inability to absorb and disperse impact energy effectively, achieve excellent shock resistance, cushioning and sports comfort, improve protection effect, and facilitate industrial production. Effect

Active Publication Date: 2014-11-19
SHANDONG INOV POLYURETHANE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sports knee pads in the traditional sense are generally "knee pads" made of thick felt materials, which can only reduce or avoid injuries during exercise to a certain extent, and cannot effectively absorb and disperse the impact energy received by the athlete's knees during exercise, thus making sports knee pads There are certain limitations in the protection of the athlete's knee

Method used

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  • Polyurethane sports knee-pad composition and preparation method thereof
  • Polyurethane sports knee-pad composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] (1) Preparation of component A materials:

[0048] Weigh respectively: special polyether polyol (hydroxyl value is 270mgKOH / g, functionality is 2.9, with the mixture of propylene glycol and glycerol as initiator) 50Kg, high activity polyether polyol (primary hydroxyl content is 70%) , number average molecular weight is 4000, with glycerol as initiator) 30Kg, polymer polyol POP93 / 28 is 20Kg, chain extender diethylene glycol 1.2Kg, foam stabilizer DC5125 is 1.2Kg, water 3.0Kg, The catalyst Dabco 8154 is 1.3Kg, the antioxidant Chinox TP-22 is 4.1Kg, the light stabilizer Chisorb B2652 is 1.4Kg, and the fine activated calcium carbonate is 2.0Kg. Put the weighed special polyether polyol, highly active polyether polyol, and polymer polyol into the reaction kettle for stirring, and then put in accurately measured chain extender, catalyst, foam blowing agent, foam stabilizer, Light stabilizers, antioxidants, and solid fillers are physically stirred at room temperature for 3.0 h...

Embodiment 2

[0053] (1) Preparation of component A materials:

[0054] Weigh respectively: special polyether polyol (hydroxyl value is 320mgKOH / g, functionality is 3.1, with the mixture of propylene glycol and diethylene glycol as initiator) 65Kg, high activity polyether polyol (primary hydroxyl content is 70%) , the number average molecular weight is 8000, the mixture of glycerol and triethanolamine is the initiator) 20Kg, the polymer polyol POP36 / 28 is 20Kg, the chain extender 1,4-butanediol is 0.6Kg, and the foam stabilizer DC193 is 0.1Kg, water 2.5Kg, catalyst Dabco 33LV is 2.5Kg, antioxidant Chinox TP-10H is 1.6Kg, light stabilizer is a mixture of 1.1Kg Chisorb B2690 and 1.1Kg Chisorb B2652, fine activated calcium carbonate is 4.0Kg. Put the weighed special polyether polyol, highly active polyether polyol, and polymer polyol into the reaction kettle for stirring, and then put in accurately measured chain extender, catalyst, foam blowing agent, foam stabilizer, Light stabilizers, anti...

Embodiment 3

[0059] (1) Preparation of component A materials:

[0060] Weigh respectively: special polyether polyol (hydroxyl value is 300mgKOH / g, functionality is 3.0, with the mixture of propylene glycol, glycerol and trimethylolpropane as initiator) 80Kg, high activity polyether polyol (primary The hydroxyl content is 75%, the number average molecular weight is 5000, with trimethylolpropane as the initiator) 10Kg, the polymer polyol HPOP40 is 8Kg, the chain extender is 0.2Kg 1,6-hexanediol, 0.5Kg ethyl A mixture of glycol and 0.5Kg propylene glycol, foam stabilizer DC6070 is 0.2Kg, water 4.5Kg, catalyst is a mixture of 1.5Kg Dabco 33LV and 1Kg Dabco BL-17, antioxidant Chinox TP-35 is 1.6Kg, light stabilizer Chisorb B2689 is 2.2Kg, and fine activated calcium carbonate is 5.0Kg. Put the weighed special polyether polyol, highly active polyether polyol, and polymer polyol into the reaction kettle for stirring, and then put in accurately measured chain extender, catalyst, foam blowing agent...

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Abstract

The invention relates to a polyurethane sports knee-pad composition and a preparation method thereof. The invention relates to the technical field of polyurethane application. The polyurethane sports knee-pad composition provided by the invention is composed of a component A and a component B. A weight ratio of the component A to the component B is 100:30-60. The raw materials for the component A are special polyether polyol, high-activity polyether polyol, polymer polyol, a chain-extender, a foam stabilizer, a foaming agent, a catalyst, an antioxidant, a light stabilizer and a solid filling material. The raw materials for the component B are polyether polyol, isocyanate and a storage stabilizer. The polyurethane sports knee-pad composition provided by the invention has excellent shock cushioning performance and sport comfortableness. Compared with a traditional protection tool, with the product provided by the invention, protection effect is greatly improved. The invention also provides a preparation method of the polyurethane sports knee-pad composition. First, component A and component B are prepared; the component A and the component B are uniformly mixed manually or by using a manipulator; and the mixture is injected into an aluminum knee-pad mold. The cost is low, and the method is easy to implement.

Description

technical field [0001] The invention relates to a polyurethane sports knee pad composition and a preparation method thereof, belonging to the technical field of polyurethane application. Background technique [0002] The knee is not only an extremely important part in sports, but also a relatively fragile and easily injured part, and it is also a part that is extremely painful and recovers slowly when injured. Therefore, professional protective tools-knee pads are needed when exercising. Knee pads generally refer to a piece of cloth used to protect people's knees. In modern sports, sports knee pads specially used in the sports field are widely used. Sports knee pads in the traditional sense are generally "knee pads" made of thick felt materials, which can only reduce or avoid injuries during exercise to a certain extent, and cannot effectively absorb and disperse the impact energy received by the athlete's knees during exercise, thus making sports knee pads There are certa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/66C08G18/48C08K3/26C08G101/00
CPCC08G18/10C08G18/4072C08G18/4816C08G18/482C08G18/6564C08G18/6674C08G2350/00C08K3/26C08K2003/265C08K2201/003C08G2110/0083
Inventor 徐军孙清峰尹玉鹏牛富刚陈伟郭永生
Owner SHANDONG INOV POLYURETHANE
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