Environment-friendly type polyurethane combined material and using method

A polyurethane composite material, an environmentally friendly technology, used in polyurea/polyurethane coatings, coatings, buildings, etc., can solve problems such as poor ventilation, harm to health, and small harm to human body.

Inactive Publication Date: 2008-01-02
SHANGHAI DONGDA CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing domestic plastic runway products are basically TDI type. Due to the high vapor pressure of TDI (1.33Pa, 20°C), there is a strong pungent smell, which is easy to damage the human respiratory system during construction and use. deals damage, and MDI has a low vapor pressure (1.5×10 -4 Pa, 20°C), basically odorless and less harmful to the human body, so it is recommended by IST
At the same time, the existing domestic plastic runway products also contain toxic and harmful substances such as MOCA, phthalic plasticizers, and lead catalysts, which are harmful to human health.
Especially when laying indoor sports venues, due to poor ventilation, it is more harmful to the health of construction workers and users

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A component:

[0027] 330N: 27; Talc powder: 32; Calcium carbonate: 10; Silica: 2; Ethylene glycol: 3; TXIB: 20; Iron oxide red: 5;: 0.5; UV-9: 0.5; Bismuth octoate): 2.0

[0028] During preparation, polyether polyol 330N, filler (talc powder, calcium carbonate, white carbon black), crosslinking agent ethylene glycol, plasticizer TXIB, pigment iron oxide red, antiaging agent BHT, ultraviolet absorber UV- 9 Add it to the reaction kettle and stir evenly, then add it to a colloid mill or a three-roller grinder to grind until the fineness is below 80um, then vacuumize and dehydrate and degas at 80°C-100°C for 2-3 hours, then cool down to 40°C Add the organic bismuth catalyst, stir evenly, and pack into barrels.

[0029] B component:

[0030] DL-3000: 48; Pure MDI: 52

[0031] Preparation: Add polyether polyol to the reaction kettle at room temperature, stir at 80°C-100°C, vacuumize and dehydrate for 2-3 hours, cool down to 40°C, add diphenylmethane diisocyanate, 80-85°C...

Embodiment 2

[0034] A component:

[0035] MN-3050: 40; Talcum powder: 25; Clay: 9; Silica: 2; Butanediol: 2; TXIB: 15; Iron oxide red: 5; 1010: 1; UV531: 1; Bismuth alkanoate): 1.0

[0036] B component:

[0037] DL-2000: 68; Pure MDI: 32

[0038] During on-site construction, according to the weight ratio of component A: component B = 2:1, mix well, lay and cure.

Embodiment 3

[0040] MN-3050: 40; DL-2000: 20; Talc powder: 17; Silica: 2; Propylene glycol: 5; TXIB: 10; Iron yellow: 5; BHT: 0.5; Bismuth quinanoate): 5.0

[0041] B component:

[0042] DL-3000: 80; Pure MDI: 20

[0043] During on-site construction, according to the weight ratio of component A: component B = 5:1, mix well, lay and cure.

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Abstract

The invention discloses an environment-protective polyurethane composition of indoor playground, which consists of component A and component B, wherein the component A contains basic component and organic bismuth catalyst; the basic component is composed of polyether polyol, filler, crosslinking agent, plasticizer, pigment, age resister and ultraviolet absorber; the component B concludes methane diphenyl diisocyanate (MDI)and polyester polyol; the blending rate of component A and component B is 2-5: 1 evenly, which are paved and solidified to produce the product without TDI, MOCA and DOP. The invention is superior to international index of runway, which is especially for paving indoor playground.

Description

technical field [0001] The invention relates to an environment-friendly polyurethane paving material suitable for laying indoor sports grounds and a preparation method thereof, more precisely a non-TDI (toluene diisocyanate), MOCA (3,3'-dichloro-4 , 4'-diphenyl diaminomethane), DOP, environmentally friendly polyurethane paving materials suitable for indoor laying of toxic catalysts. Background technique [0002] Polyurethane rubber sports field (referred to as plastic sports field) has the characteristics of good elasticity, wear resistance, non-slip, and not affected by weather conditions. It is popular with the public and is also the development direction of modern sports field construction. [0003] With the enhancement of people's awareness of environmental protection, the environmental protection requirements for sports venues are also increasingly strong. As early as 1994, IST (International Sports Track Technology Association) proposed "do not accept monomeric TDI com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/08E01C13/06
Inventor 孙清峰张芳
Owner SHANGHAI DONGDA CHEM
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