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Bubble-free fast and deep curing one-component modified PU court material and preparation method thereof

A deep curing, one-component technology, applied in coatings, polyurea/polyurethane coatings, etc., can solve the problems of construction personnel, bulging bubbles, strict environmental temperature requirements, etc., to achieve easy mass production and construction application, The effect of low TVOC content and simple preparation method

Inactive Publication Date: 2020-03-06
广东盛天体育股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, either way will cause huge troubles to construction workers
The thickness of the single-component material can only be about 2mm each time. If the thickness is too thick, air bubbles will appear, and the air bubbles will greatly reduce the mechanical properties of the entire elastic layer.
Moreover, the one-component material has strict requirements on the ambient temperature, and the construction cannot be carried out if the temperature is too high.
The two-component is usually an isocyanate component and a hydroxyl component, which requires precise mixing of the two components. Too much isocyanate component may cause bubbles and bulges, and too much hydroxyl component may cause slow drying and sticky surface Even the case of not doing

Method used

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  • Bubble-free fast and deep curing one-component modified PU court material and preparation method thereof
  • Bubble-free fast and deep curing one-component modified PU court material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051]Embodiment 1 A kind of one-component modified PU court material of foam-free rapid deep layer curing, the single-component modified PU court material of foam-free rapid deep layer solidification, comprises each component of following percentage by weight:

[0052] Polyether polyol: 60g polyoxyethylene / propylene copolyethylene glycol (2000 molecular weight), 70g polyoxypropylene glycol (4000 molecular weight) and 50g polyoxypropylene trihydric alcohol (5000 molecular weight);

[0053] Isocyanate: 31.25g diphenylmethane diisocyanate;

[0054] Filler: 401.9g ground calcium carbonate;

[0055] Environmental diluent: 235.85g epoxy soybean oil;

[0056] Composite stabilizer: 8g antioxidant tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester, 8g ultraviolet absorber 2-(2-hydroxyl-3-dodeca Alkyl-5-methyl)benzotriazole, 8g light stabilizer bis(1,2,2,6,6-pentamethyl-4-piperidinyl) sebacate);

[0057] Latent curing agent: 50g of Incozol 4 purchased f...

Embodiment 2

[0075] A one-component modified PU court material with no foam and rapid deep curing, the one-component modified PU court material with no foam and rapid deep cure, comprising the following components in weight percentage:

[0076] Polyether polyol: 80g polyoxyethylene glycol (2000 molecular weight), 50g polyoxypropylene glycol (4000 molecular weight), 50g polyoxypropylene trihydric alcohol (5000 molecular weight);

[0077] Isocyanate: 33.75g of diphenylmethane diisocyanate;

[0078] Filler: 411.9g ground calcium carbonate;

[0079] Environmental diluent: 218.35g synthetic vegetable ester;

[0080] Composite stabilizer: 8g antioxidant triethylene glycol bis-[3-(3-tert-butyl-4-hydroxyl-5-methylphenyl) propionate], 8g ultraviolet light absorber 2-(2'- Hydroxy-3', 5'-di-tert-amylphenyl) benzotriazole and 8g light stabilizer bis(2,2,6,6-tetramethyl-4-piperidinyl) sebacate;

[0081] Latent curing agent: 45g of Incozol K purchased from Incorez Ltd.;

[0082] Described auxiliary ...

Embodiment 3

[0098] A one-component modified PU court material with no foam and rapid deep curing, the one-component modified PU court material with no foam and rapid deep cure, comprising the following components in weight percentage:

[0099] Polyether polyol: polytetrahydrofuran glycol (2000 molecular weight) of 70g, polyoxypropylene glycol (4000 molecular weight) of 60g, polyoxypropylene trihydric alcohol (5000 molecular weight) of 50g;

[0100] Isocyanate: 32.5g diphenylmethane diisocyanate;

[0101] Filler: 360g ground calcium carbonate;

[0102] Environmental diluent: 274.5g citric acid ester;

[0103] Composite stabilizer: 8g antioxidant 3,5-di-tert-butyl-4-hydroxyphenylpropionate isooctyl, 8g ultraviolet absorber 2-(2-hydroxy-3-dodecyl-5-methyl Phenyl) benzotriazole, 8g light stabilizer Tinuvin PUR 68 8g;

[0104] Latent solidifying agent: 42g is purchased from the Incozol HP of Incorez Ltd. company;

[0105] Described auxiliary agent comprises each component that accounts for...

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Abstract

The invention provides a bubble-free fast and deep curing one-component modified PU court material. The material comprises the following components in percentage by weight: 10-30% of a polyether polyol, 2-7% of an isocyanate, 15-50% of a filler, 15-40% of an environment-friendly diluent, 1.5-4.5% of a composite stabilizer, 2-10% of a latent curing agent, and 3.42-20% of an auxiliary agent, whereinthe latent curing agent is a mixture of one or more of aldimines, ketimines, and oxazolidines. Compared with the silicon PU court of the prior art, the bubble-free fast and deep curing one-componentmodified PU court material uses the latent curing agent to replace a blocked silane coupling agent, has small use amount and low price, and has the advantages of low TVOC content, convenient and simple construction, fast curing speed, no bubbles when curing, excellent physical properties, and the like.

Description

technical field [0001] The invention relates to the field of polyurethane modified materials, in particular to a non-foaming fast deep-layer solidified single-component modified PU court material and a preparation method thereof. Background technique [0002] Silicon PU has the characteristics of being hard and elastic, and elastic but not soft. It is a professional structure designed for healthy sports. Silicon PU is used in the construction of stadiums. On the one hand, the hard surface can bring professional sports texture. On the other hand, the elastic sports ground can effectively increase sports cushioning and reduce the reaction force of athletes' ankles, joints, and ligaments due to the ground. At the same time, it can effectively reduce sports accidental injuries caused by falling and falling during sports. In addition, silicon PU also has the characteristics that it can be directly constructed on cement and asphalt foundations, and the surface will not be discolo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/08C09D7/61C09D7/48C09D7/63C08G18/48
CPCC08G18/4812C08G18/4825C08G18/4829C08G18/4837C08K2003/265C09D175/08C09D7/48C09D7/61C09D7/63C08K13/02C08K3/26C08K5/1345C08K5/5425
Inventor 张书申文强谢燕平
Owner 广东盛天体育股份有限公司
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