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Transparent polyurethane elastomer component material and using method thereof

A polyurethane elastomer, transparent technology, applied in the field of polyurethane elastomer, to achieve excellent mechanical properties, shorten demoulding time, and improve production efficiency

Active Publication Date: 2008-01-02
SHANDONG INOV POLYURETHANE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, the advantages of making pulleys from polyurethane elastomers are lost.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Polymer components: polyether polyol (PPG) with functionality 3, molecular weight 6000 (PPG) 79%, MOCA 20%, organic zinc (zinc naphthenate) catalyst 0.5% and UV-9 0.5%.

[0021] Prepolymer: It is composed of propylene oxide polyether polyol (PPG) with 2 functionalities and molecular weight of 2000 (PPG) 75%, toluene diisocyanate (TDI) 20%, and diphenylmethane diisocyanate (MDI) 5%.

[0022] When in use, the polymer component and the prepolymer are uniformly mixed at 30° C. according to a weight ratio of 1:1. Products are produced according to known product production methods (casting, vulcanization molding), and the product vulcanization temperature is 60° C. to 75° C. for 20 minutes.

Embodiment 2

[0024] Polymer components: 52% polyether polyol (PPG) with a functionality of 3 and a molecular weight of 6000, 30% of a polyether polyol with a functionality of 2 and a molecular weight of 2000, 17% of MOCA, and 1.0% of an organic zinc (zinc isooctanoate) catalyst and UV-3280.5%%.

[0025] Prepolymer: It is composed of 65% of polyether polyol (PPG) with bifunctionality and molecular weight of 2000, 27% of toluene diisocyanate (TDI), and 8% of isophordione diisocyanate (IPDI).

[0026] When in use, the polymer component and the prepolymer are uniformly mixed at 40° C. according to a weight ratio of 1:1. The product is produced according to a known product production method, and the vulcanization temperature of the product is 60° C. to 75° C., and the vulcanization takes 20 minutes.

Embodiment 3

[0028] Polymer components: functionality 3, polyether polyol (PPG) with a molecular weight of 4000 (PPG) 75%, MOCA 23%, organic bismuth (bismuth quinanoate) catalyst 1.5% and UV-531 0.5%%

[0029] Prepolymer: 70% of polyether polyol (PPG) with bifunctionality and molecular weight of 1000, 25% of toluene diisocyanate (TDI), and 5% of MDI modified by carbonized diimide.

[0030] When in use, the polymer component and the prepolymer are uniformly mixed at 25° C. according to a weight ratio of 1:1. The product is produced according to a known product production method, and the vulcanization temperature of the product is 60° C. to 75° C., and the vulcanization takes 20 minutes.

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PUM

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Abstract

The invention provides a hypergolic transparent urethane elastomer combination material, wherein the polymer component comprises 2000-6000 molecular weight polyether polyol, aromatic diamine MOCA, accelerant and light-stability agent; the prepolymer (NCO%=7%-10%)is made by the mixture of 2000 molecular weight, 2 functionality polyether polyol and more than two-type diisocyanate with toluene diisocyanate at 70-90Deg. C. The weight ratio of prepolymer and polymer is 1:1, the mixing temperature is 25Deg. C-40Deg. C, and the vulcanizing temperature is 60Deg. C-75Deg. C. The elastomer not only guarantees transparency, but also is provided with the good mechanic property, which makes the light transmittance ratio of the product more than 85%, makes the product produce in the lower temperature, and is fit for manufacturing the transparent skating shoe wheel or the slide board wheel.

Description

technical field [0001] The invention belongs to polyurethane elastomers, in particular to a transparent polyurethane elastomer composite material and its application method. Background technique [0002] Polyurethane is a polymer synthetic material with properties between rubber and plastic. It is characterized by a wide range of hardness adjustment. It has both the elasticity of rubber and the hardness of plastic, and has good mechanical properties, wear resistance and resilience. . Because of its advantages, it is used to make wheels of roller shoes, but it is difficult for ordinary polyurethane elastomers to be colorless and transparent. Therefore, although it has excellent wear resistance and resilience, it is not beautiful in appearance and is not welcomed by people. . In order to obtain transparent polyurethane elastomers, the mechanical properties, resilience properties and wear resistance properties of the products are often compromised. Like this just lost the ad...

Claims

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Application Information

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IPC IPC(8): C08G18/48C08G18/76C08G101/00
Inventor 陈海良陈伟
Owner SHANDONG INOV POLYURETHANE
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