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Polyurethane foam for all-plastic plastic runway and preparation method thereof

A polyurethane foam and plastic track technology, applied in the field of all-plastic plastic track, can solve the problems of affecting the health of athletes, the smell of mixed track, impact absorption and vertical deformation can not be achieved.

Active Publication Date: 2015-12-09
JIANGMEN CHANGHE CHEM IND GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing air-permeable track materials are made of granule laying and granule spraying, and the impact absorption and vertical deformation cannot meet the requirements of the new national standard; and the mixed track often has a large smell after construction, which affects the health of athletes
But, also do not see the report that polyurethane foam is used to make plastic runway elastic layer at present

Method used

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  • Polyurethane foam for all-plastic plastic runway and preparation method thereof
  • Polyurethane foam for all-plastic plastic runway and preparation method thereof
  • Polyurethane foam for all-plastic plastic runway and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Weigh the above-mentioned 28kg polyether diol, 52kg talcum powder and 10kg plasticizer into the line for high-temperature dehydration, and then react with 8kg diphenylmethane diisocyanate at 70°C for 4 hours, and then detect the The number of isocyanates, when the number of isocyanates is 7.0, then drop 0.5kg gamma-glycidyloxypropyltrimethoxysilane into the reaction system, the number of isocyanates in the system is measured to be 5.0, and then cool down to 50- 55°C, then add 1kg of antioxidant, then cool down, filter and pack to obtain polyurethane; then add 0.5kg of foaming agent at room temperature for foaming during construction to obtain the polyurethane foam, disperse evenly after foaming, and scrape. The thickness is 5mm.

Embodiment 2

[0023] Weigh the above-mentioned 30kg polyether trihydric alcohol, 46kg quartz powder and 12kg plasticizer into the line for high-temperature dehydration, and then react with 10kg diphenylmethane diisocyanate at 65°C for 4 hours, and then detect the The number of isocyanates, when the number of isocyanates is 7.5, then add 1 kg of vinyltriethoxysilane dropwise to the reaction system, and the number of isocyanates in the system is measured to be 5.0, then cool down to 50-55 °C, and then Add 0.8kg antioxidant, then cool down and filter and pack to obtain polyurethane; then add 0.2kg foaming agent at normal temperature to foam to obtain the polyurethane foam during construction, disperse evenly after foaming and scrape, and the thickness of the coating is 5.5 mm.

Embodiment 3

[0025] Weigh the above-mentioned 35kg polyether triol, 45kg quartz powder and 8kg plasticizer into the line for high-temperature dehydration, and then react with 10kg toluene isocyanate at 65°C for 3 hours, and then detect the amount of isocyanate in the reaction system , when the number of isocyanate is 7.5, add 0.8kg of vinyltriethoxysilane dropwise to the reaction system, and the number of isocyanate in the system is measured to be 5.5, then lower the temperature to 50-55°C, and then add 1.1kg Ultraviolet absorber, then cool down, filter and package to obtain polyurethane; then add 0.1kg foaming agent at room temperature to foam to obtain the polyurethane foam during construction, disperse evenly after foaming, and scrape with a thickness of 6.0mm.

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Abstract

The invention provides polyurethane foam for an all-plastic plastic runway and a preparation method thereof. The preparation method comprises the steps that 28-35% of polyether polyol, 45-52% of stuffing, 8-12% of plasticizers and 8-15% of isocyanate are weighed by weight and react at 65-70 DEG C for 3-4 hours; the isocyanato quantity in the reaction system is detected; when the isocyanato quantity is 7.0-7.5, 0.5-1.5% of silane coupling agents are dropwise added in the reaction system until the isocyanato quantity in the system is 5.0-5.5; the temperature is lowered to 50-55 DEG C, then antiaging agents are added, the temperature is lowered, filtering and packaging are performed, and polyurethane is obtained; when construction is performed, foaming agents are added at room temperature for foaming to obtain the polyurethane foam. According to the polyurethane foam, the polyurethane is modified through the silane coupling agents, the foaming efficiency is improved, the better micro-air-bag structural material is obtained, and the requirements of an elastic layer of the plastic runway are met.

Description

technical field [0001] The invention belongs to the technical field of all-plastic plastic runways, and in particular relates to a polyurethane foam for all-plastic plastic runways and a preparation method thereof. Background technique [0002] The existing air-permeable track materials are made of granule laying and granule spraying, and the impact absorption and vertical deformation cannot meet the requirements of the new national standard; and the mixed track often has a large smell after construction, which affects the health of athletes . Rigid polyurethane foam insulation material is a foam material made of polyhydric hydroxyl compound and isocyanate as the main raw material, under the action of catalyst and foaming agent, through addition polymerization and foaming. Rigid polyurethane foam has excellent physical and mechanical properties, electrical properties, acoustic properties and chemical corrosion resistance. But, also do not see the report that polyurethane f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/08C08K3/34C08J9/04C08G18/48C08G18/83
Inventor 赵文海王清明
Owner JIANGMEN CHANGHE CHEM IND GRP
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