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Sports field poly(ethylene carbonate) polyurethane paving material and preparation method thereof

A technology of polyethylene carbonate and sports fields, applied in pavement, construction, roads, etc., can solve the problems of polyurethane pavement material research reports and industrial application examples, etc., achieve broad market application space, low cost, wear resistance excellent effect

Active Publication Date: 2012-11-28
HUIZHOU DAYAWAN DAZHI FINE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are no research reports and industrial application examples of polyurethane paving materials for sports fields based on polyethylene carbonate diol.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A polyethylene carbonate-type polyurethane paving material for sports fields, which is composed of component A, component B, black rubber particles and a catalyst; component A is composed of 20-50% diisocyanate, poly Ethylene carbonate diol 50-80%; the composition of component B according to weight percentage is: polyethylene carbonate 30-50%, processing aids 30-70% filler, 0.1-2% pigment, 0.01-0.1% UV absorber, 0.01-0.1% anti-aging agent, wherein the weight ratio of component A to component B is 1:1-6, black rubber particles It is 10-40% of the total weight of components A and B, and the catalyst is 0.05%-1% of the total weight of components A and B.

[0032] The diisocyanate is toluene diisocyanate (TDI), 1,6-hexamethylene diisocyanate (HDI), diphenylmethane diisocyanate (MDI), carbodiimide modification (MDI), 1,5-naphthalene One or a mixture of diisocyanate (NDI), isophorone diisocyanate (IPDI), polyisocyanate (PAPI).

[0033] The polyethylene carbonate diol is fo...

Embodiment 2

[0041] 1. Preparation of A component

[0042] 1. Add polyethylene carbonate diol with a mass percentage of 78.5% and a molecular weight of 3000 into the reaction kettle; after the addition, start stirring, raise the temperature to 90°C, vacuum dehydrate for 1 hour, and cool down to 20°C.

[0043] 2) Then add diphenylmethane diisocyanate with a mass percentage of 21.5%, keep it warm for 30 minutes, slowly raise the temperature to 75-85°C under stirring conditions, react at this temperature for 1.5 hours, and cool down to 20°C.

[0044] Two, the preparation of component B

[0045] 1) According to the order of ingredients: 35% polyethylene carbonate with a molecular weight of 3000, 15% chlorinated paraffin, 49% filler, 0.8% pigment, 0.1% UV absorber, anti-aging Add 0.1% of the agent, put it into the batching kettle, and stir it with a stirrer for 5-10 minutes.

[0046] 2) Use a colloid mill to grind the prepared material to a particle size of less than 80 microns.

[0047] 3) Pu...

Embodiment 3

[0051] 1. Preparation of A component

[0052] 1. Add polyethylene carbonate diol with a molecular weight of 80% and a molecular weight of 3000 into the reaction kettle; start stirring after the addition, raise the temperature to 90°C, vacuum dehydrate for 1 hour, and cool down to 40°C.

[0053] 2) Then add diphenylmethane diisocyanate with a mass percentage of 20%, keep it warm for 30 minutes, slowly raise the temperature to 75-85°C under stirring conditions, react at this temperature for 1.5 hours, and cool down to 40°C.

[0054] Two, the preparation of component B

[0055] 1) According to the order of ingredients: 45% polyethylene carbonate with a molecular weight of 3000 in terms of mass percentage, 15% chlorinated paraffin, 39% filler, 0.8% pigment, 0.1% ultraviolet light absorber, anti-aging agent 0.1%, put it into the batching kettle, stir with a stirrer for 5-10 minutes.

[0056] 2) Use a colloid mill to grind the prepared material to a particle size of less than 80 m...

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Abstract

The invention discloses a sports field poly(ethylene carbonate) polyurethane paving material, which consists of a component A, a component B, black rubber particles and a catalyst. The component A comprises the following components in percentage by weight: 20 to 50 percent of diisocyanate, and 50 to 80 percent of poly(ethylene ether carbonate)diol. The component B comprises the following components in percentage by weight: 30 to 50 percent of poly(ethylene ether carbonate), 5 to 25 percent of processing aid, 30 to 70 percent of filler, 0.1 to 2 percent of pigment, 0.01 to 0.1 percent of ultraviolet absorber and 0.01 to 0.1 percent of inhibitor. The weight ratio of the component A to the component B is 1:(1-6), the content of black rubber particles is 10 to 40 percent based on the total weight of the components A and B, and the content of the catalyst is 0.05 to 1 percent based on the total weight of the components A and B. The invention discloses the preparation method of the paving material. The indexes of the paving material reach the performance indexes of polyether polyurethane paving materials. Compared with the polyether polyurethane paving materials, the paving material hashigher weather resistance, scrape resistance, wear resistance and caking property, and is lower in cost, nontoxic and environmentally-friendly.

Description

technical field [0001] The invention relates to a paving material for sports grounds, in particular to a polyethylene carbonate type polyurethane paving material for sports grounds. The invention also relates to the preparation method of some kinds of pavement materials. The utility model belongs to the field of sports field pavement materials. Background technique [0002] The track and field track, basketball court, volleyball court, badminton court, tennis court and other venue paving materials of modern sports grounds are mostly made of polyurethane materials. This material has suitable elasticity, excellent sports safety performance, non-slip, good pressure resistance and impact resistance. , not affected by climatic conditions and other advantages, it is very popular among the public. [0003] According to different raw materials, polyurethane materials can be divided into polyester type and polyether type. Polyester polyurethane molecules contain a large number of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L75/04C08L21/00C08G18/44E01C13/06
Inventor 蔡志华
Owner HUIZHOU DAYAWAN DAZHI FINE CHEM
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