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A kind of polyurethane ball court material and preparation method thereof

A polyurethane and court technology, which is applied in the field of polyurethane court materials and their preparation, can solve the problems of non-conformity with environmental protection concepts and high toxicity, and achieve the effects of good hydrolysis resistance stability, low cohesive energy and good curing effect.

Active Publication Date: 2021-03-19
江苏耐斯坦建设有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the Chinese patent with the application publication number CN104087147A among the existing patents discloses a one-component polyurethane waterproof coating and its preparation method, including polyether polyol, toluene diisocyanate, organic solvent, filler, defoamer , plasticizers, dispersants and catalysts, organic solvents are selected from one or more of toluene, xylene and acetone, most of which are precursor chemicals and are highly toxic, which does not conform to the environmental protection concept of modern production

Method used

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  • A kind of polyurethane ball court material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] (1) According to parts by weight, select 75 parts of polyoxypropylene polyol, 25 parts of polytetrahydrofuran diol, 8 parts of diphenylmethane diisocyanate, 15 parts of mineral powder, 15 parts of calcined clay, and 20 parts of dearomatized solvent oil part, 0.05 part of composite catalyst for batching;

[0039] (2) Add 75 parts of polyoxypropylene polyol, 25 parts of polytetrahydrofuran diol, 15 parts of mineral powder, 15 parts of calcined clay and 20 parts of aromatic hydrocarbon solvent oil into the dehydration kettle, and dehydrate under reduced pressure at 115 ° C. The vacuum degree is -0.09MPa, and the extracted solvent and water are condensed and collected. After the solvent and water are separated, the solvent is recovered and reused;

[0040] (3) After the dehydration is completed, the temperature is lowered to 75° C., and 8 parts of diphenylmethane diisocyanate and 0.05 part of composite catalyst are added, and the reaction is carried out for 2 hours;

[004...

Embodiment 2

[0043] (1) According to parts by weight, select 60 parts of polyoxypropylene polyol, 20 parts of polytetrahydrofuran diol, 10 parts of diphenylmethane diisocyanate, 10 parts of mineral powder, 10 parts of calcined clay, and 15 parts of dearomatized solvent oil , 0.07 parts of composite catalyst and 2 parts of auxiliary agent for batching;

[0044] (2) Add 60 parts of polyoxypropylene polyol, 20 parts of polytetrahydrofuran diol / 10 parts of mineral powder, 10 parts of calcined clay and 15 parts of dearomatized solvent oil into the dehydration kettle, dehydrate under reduced pressure at 115 ° C, and control The vacuum degree is -0.09MPa, and the extracted solvent and water are condensed and collected. After the solvent and water are separated, the solvent is recovered and reused.

[0045] (3) After the dehydration is completed, the temperature is lowered to 75°C, and 10 parts of diphenylmethane diisocyanate and 0.07 parts of composite catalyst are added, and the reaction is carr...

Embodiment 3

[0048] (1) According to parts by weight, select 45 parts of polyoxypropylene polyols, 15 parts of polytetrahydrofuran diol, 12 parts of diphenylmethane diisocyanate, 7 parts of mineral powder, 8 parts of calcined clay, and 20 parts of dearomatized solvent oil part, 0.08 part of composite catalyst and 2 parts of auxiliary agent for batching;

[0049] (2) Add 45 parts of polyoxypropylene polyol, 15 parts of polytetrahydrofuran diol, 7 parts of mineral powder, 8 parts of calcined clay and 20 parts of dearomatized solvent oil into the dehydration kettle, and dehydrate under reduced pressure at 115 ° C. The vacuum degree is -0.09MPa, and the extracted solvent and water are condensed and collected. After the solvent and water are separated, the solvent is recovered and reused;

[0050] (3) After the dehydration is completed, the temperature is lowered to 75° C., and 12 parts of diphenylmethane diisocyanate and 0.08 parts of composite catalyst are added, and the reaction is carried o...

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Abstract

The invention discloses a polyurethane court material and a preparation method thereof. The technical scheme mainly includes that the polyurethane court material comprises, by weight, 60-100 parts of polyether polyol, 8-15 parts of diphenylmethane diisocyanate, 15-30 parts of reinforcing fillers, 10-20 parts of aromatics removing solvent oil, 0.05-0.1 part of composite catalysts and 0.5-3 parts of auxiliaries. In an environment with the aromatics removing solvent oil, the polyether polyol and water in other fillers can be taken out, the steric hindrance of the aromatics removing solvent oil is reduced, the polarity difference among the aromatics removing solvent oil and other components is decreased, the aromatics removing solvent oil is prevented from forming hydrogen bonds with hydroxyl of alcohol and affecting reaction speed, dehydration efficiency can be improved, and reaction thoroughness is enhanced.

Description

technical field [0001] The invention relates to a dehydration method, in particular to a polyurethane court material and a preparation method thereof. Background technique [0002] Polyurethane material is a widely used court material. It is a polymer with repeating structural units of carbamate groups in the main chain. The English abbreviation is PU. One-component polyurethane is made by mixing polyether for dehydration, adding diisocyanate and various additives for epoxy modification. The solvent used for the production of polyurethane should focus on heavy NCO groups in the polyurethane. Solvents such as alcohols and ether alcohols that react with NCO groups should not be selected. The solvent should not contain impurities such as water and alcohols, and should not contain alkali substances, which will cause the deterioration of polyurethane. , so the dehydration process is very important. [0003] At present, the Chinese patent with the application publication number ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/76C08G18/48C08G18/22C08K3/26C08K3/34C08L75/08C08L29/04C08L71/02C08K13/02C08K5/46
CPCC08G18/222C08G18/227C08G18/4825C08G18/4854C08G18/7671C08K3/26C08K3/346C08K2003/265C08K2201/014C08L75/08C08L2201/08C08L2205/03C08L29/04C08L71/02C08K13/02C08K5/46
Inventor 潘毅
Owner 江苏耐斯坦建设有限公司
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