Preparation method of anti-aging water-permeable plastic runway

Abstract

The invention belongs to the technical field of plastic material preparation, and particularly relates to a preparation method of an anti-aging water-permeable plastic runway. The preparation method comprises the following steps: mixing and dispersing mixed monomers, a pre-emulsifier and water to obtain water-permeable paint; mixing isophthalic acid, neopentyl glycol and trimethylolpropane, and adding cyclohexanedicarboxylic acid, carboxylated asphalt, an anti-aging modification filler and the like to obtain anti-aging toughened polyester paint; and firstly spraying the anti-aging toughened polyester paint on a plastic runway base layer, then spraying a silicon dioxide / titanium dioxide composite hydrosol for impregnation and modification, and finally smearing the water-permeable paint to obtain the anti-aging water-permeable plastic runway. According to the invention, carboxylated asphalt and polyester resin are subjected to decarboxylation polymerization for improving the surface toughness of cured polyester resin, meanwhile, the carboxylated asphalt can serve as an electron acceptor for improving absorption of ultraviolet light by titanium dioxide, the photoinduced hydrophilicityof the whole plastic runway polyester coating can be improved through doping of silicon dioxide, water accumulation is not likely to happen, and the application prospect is wide.

Description

technical field

[0001] The invention belongs to the technical field of plastic material preparation, and in particular relates to a preparation method of an anti-aging permeable plastic runway. Background technique

[0002] At present, plastic runways are laid on the playgrounds and sports fields of various primary and secondary schools in our country. The plastic runway is composed of polyurethane prepolymer, mixed polyether, pigments, additives, etc. Compared with cinder and sand and gravel fields, plastic track has the advantages of beautiful appearance, good flatness, high compressive strength, appropriate hardness and elasticity, good shock absorption performance, wear resistance and anti-aging, does not pollute the environment, and is easy to clean and maintain. For this reason, the plastic track has been internationally recognized as the best race track.

[0003] According to the structural materials used for construction, the plastic track can be divided into: pref...

Examples

preparation example Construction

[0031] Preparation of pre-emulsion: In parts by weight, 50 parts of styrene, 20 parts of isooctyl acrylate and 30 parts of acrylic acid are mixed to obtain a mixed monomer, and 0.8 parts of OP-10 and 1.2 parts of sodium vinyl sulfonate are mixed to obtain Pre-emulsifier, add the mixed monomers, pre-emulsifier and 70 parts of deionized water into the pre-emulsification kettle, start the agitator, and stir at a speed of 300r / min for 25min to obtain a pre-emulsion.

[0032] Preparation of water seepage paint: In parts by weight, add 80 parts of the above-mentioned pre-emulsion, 20 parts of ammonium persulfate solution with a mass fraction of 20%, and 20 parts of sodium bicarbonate into the reaction kettle, heat up to 80°C, and start Agitator, stirring at a rotating speed of 60r / min, heat preservation reaction for 30min, then dropwise add the remaining pre-emulsion and 15 parts of mixed solution with a mass fraction of 10% ammonium persulfate solution in the reactor, after the drop...

technical field

[0001] The invention belongs to the technical field of plastic material preparation, and in particular relates to a preparation method of an anti-aging permeable plastic runway. Background technique

[0002] At present, plastic runways are laid on the playgrounds and sports fields of various primary and secondary schools in our country. The plastic runway is composed of polyurethane prepolymer, mixed polyether, pigments, additives, etc. Compared with cinder and sand and gravel fields, plastic track has the advantages of beautiful appearance, good flatness, high compressive strength, appropriate hardness and elasticity, good shock absorption performance, wear resistance and anti-aging, does not pollute the environment, and is easy to clean and maintain. For this reason, the plastic track has been internationally recognized as the best race track.

[0003] According to the structural materials used for construction, the plastic track can be divided into: pref...

Examples

preparation example Construction

[0031] Preparation of pre-emulsion: In parts by weight, 50 parts of styrene, 20 parts of isooctyl acrylate and 30 parts of acrylic acid are mixed to obtain a mixed monomer, and 0.8 parts of OP-10 and 1.2 parts of sodium vinyl sulfonate are mixed to obtain Pre-emulsifier, add the mixed monomers, pre-emulsifier and 70 parts of deionized water into the pre-emulsification kettle, start the agitator, and stir at a speed of 300r / min for 25min to obtain a pre-emulsion.

[0032] Preparation of water seepage paint: In parts by weight, add 80 parts of the above-mentioned pre-emulsion, 20 parts of ammonium persulfate solution with a mass fraction of 20%, and 20 parts of sodium bicarbonate into the reaction kettle, heat up to 80°C, and start Agitator, stirring at a rotating speed of 60r / min, heat preservation reaction for 30min, then dropwise add the remaining pre-emulsion and 15 parts of mixed solution with a mass fraction of 10% ammonium persulfate solution in the reactor, after the drop...

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