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A kind of polymer ceramic material and preparation method thereof

A technology for polymerizing pottery and liquid materials, applied in the field of polyurethane materials, can solve the problems of poor comprehensive properties such as mechanical properties, insufficient hardness, and high cost, and achieve the effects of broadening application fields, increasing hardness, and reducing production costs

Active Publication Date: 2017-04-05
北京聚合陶科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The present invention designs a polymer ceramic material and its preparation method. The technical problem it solves is that ordinary polyurethane rigid foam, as a pure polymer material, has defects such as insufficient hardness, easy combustion, poor mechanical properties, and high cost.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Select 60 g of talc powder with a size of 400 mesh or more and 40 g of kaolin clay with a size of more than 200 mesh, and mix them uniformly as inorganic powder.

[0042] Then 45g of which was mixed into 100g of isocyanate liquid material as a mixture of diphenylmethane diisocyanate (MDI), toluene diisocyanate (TDI) and hexamethylene diisocyanate (HDI) in a mass ratio of 3:1:1 In the isocyanate liquid material, another 55g of inorganic powder was mixed into 300g of polyether polyol and polyester polyol combined liquid material, wherein, the polyether polyol and polyester polyol combined liquid material described in The mass ratio of polyether polyol and polyester polyol is 2:7, and the polyether polyol is a mixture of active polyether polyol and flame-retardant polyether polyol in a mass ratio of 5:1, and the The polyester polyol is a phthalic anhydride polyester polyol.

[0043] The liquid black material and white material mixed evenly with the inorganic powder are fu...

Embodiment 2

[0046] Select 30 g of calcium oxide above 400 mesh and 70 g of expanded graphite above 100 mesh, and mix them uniformly as inorganic powder.

[0047] Then 50g of it was mixed into 150g of isocyanate liquid material as a mixture of diphenylmethane diisocyanate (MDI), toluene diisocyanate (TDI) and hexamethylene diisocyanate (HDI) in a mass ratio of 3:1:1 In the isocyanate liquid material, another 50g of inorganic powder is mixed into 100g of the liquid material of the combination of polyether polyol and polyester polyol, wherein the liquid material of the combination of polyether polyol and polyester polyol is The mass ratio of polyether polyol and polyester polyol is 2:7, and the polyether polyol is a mixture of active polyether polyol and flame-retardant polyether polyol in a mass ratio of 5:1, and the The polyester polyol is a phthalic anhydride polyester polyol.

[0048]The liquid black material and white material mixed evenly with the inorganic powder are further mixed ev...

Embodiment 3

[0051] Select 20 g of expanded graphite with a size of more than 100 mesh and 80 g of kaolin with a size of more than 200 mesh, and mix them uniformly as inorganic powder.

[0052] Then 60g of it was mixed into 300g of isocyanate liquid material, which was a mixture of diphenylmethane diisocyanate (MDI), toluene diisocyanate (TDI) and hexamethylene diisocyanate (HDI) in a mass ratio of 3:1:1. In the isocyanate liquid material, another 40g of inorganic powder was mixed into 100g of polyether polyol and polyester polyol combined liquid material, wherein, the polyether polyol and polyester polyol combined liquid material described in The mass ratio of polyether polyol to polyester polyol is 2:7, and the polyether polyol is a mixture of active polyether polyol and flame-retardant polyether polyol in a mass ratio of 5:1. The polyester polyol is a phthalic anhydride polyester polyol.

[0053] The liquid black material and white material mixed evenly with the inorganic powder are fu...

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Abstract

The invention relates to a polymeric ceramic material and a preparation method thereof. The method includes the steps of: selecting an isocyanate liquid material as the black material, selecting a polyether polyol and polyester polyol combined liquid material as the white material, or doping inorganic powder into the black material and the white material simultaneously; mixing the black material and the white material that are doped with the inorganic powder, and adding an assistant; and subjecting the obtained mixture to polymerization reaction by means of die injection or free foaming, thus finally obtaining the needed modified polyurethane hard foam material. According to the invention, the isocyanate and the polyether polyol and polyester polyol combined material are mixed with different types of inorganic powder, the inorganic powder shows stable performance after mixing with the polyurethane raw material, the oxygen index and burning residual amount directly related to anti-burning properties are increased, and the material hardness is improved. At the same time, because of the adding of the assistant, the comprehensive properties of the polyurethane material are greatly enhanced.

Description

technical field [0001] The invention belongs to the field of polyurethane materials, and in particular relates to a preparation method of a polymeric ceramic material. Background technique [0002] Polyurethane rigid foam is a solid with a microcellular structure formed by isocyanate (commonly known as black material) and polyether polyol (commonly known as white material) or a combination of polyether polyol and polyester polyol through polymer polymerization. Due to its cell structure has a certain strength, under the conditions of different densities, polyurethane rigid foam exhibits strength, stiffness, toughness, dimensional stability, water resistance, temperature resistance, aging resistance, electrical insulation that meet the needs of specific use. , low thermal conductivity, sound absorption and sound insulation and sufficient processability, are widely used in the following fields: [0003] 1. Refrigeration equipment in food and other industries: such as refriger...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/76C08G18/73C08G18/48C08G18/42C08K13/04C08K13/02C08K5/3492C08K5/18C08K3/36C08K5/10C08K3/34C08K3/16C08K7/24C08K3/22
CPCC08G18/724C08K2003/162C08K2003/2227C08K2201/003C08K2201/014C08G2110/0025C08G2110/0066
Inventor 张磊
Owner 北京聚合陶科技有限公司
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