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Preparation method for polymeric ceramic material

A technology of polymerizing pottery and white materials, applied in the field of polyurethane materials, can solve the problems of high cost, poor flame retardancy, poor mechanical properties and other comprehensive properties, and achieve high temperature resistance and hardness, reduce production costs, and excellent flame retardancy sexual effect

Inactive Publication Date: 2015-12-02
陈民
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The present invention designs a method for preparing polymeric ceramic materials, which solves the technical problems that ordinary polyurethane rigid foam has insufficient hardness, poor high temperature resistance, poor flame retardancy, poor mechanical properties and other comprehensive properties as a pure polymer material. high cost defects

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Select 60g of talc powder with a mesh size of 400 or more, and kaolin clay with a mesh size of 200 or more, 40g, and mix them uniformly to make 100g of inorganic powder.

[0040] Then 45g of it is mixed into 100g polymethylene polyphenyl polyisocyanate (PAPI), triphenylmethane triisocyanate (TTI) and hexamethylene diisocyanate (HDI) according to the composition of mass ratio 5:2:1 In the isocyanate liquid material of the mixture, another 55g of inorganic powder was mixed into the liquid material of 300g polyether polyol and polyester polyol combination. Wherein, the mass ratio of polyether polyol and polyester polyol described in the polyether polyol and polyester polyol combination liquid material is 1:10; Described polyether polyol is graft type polyether A mixture of polyol and high temperature resistant polyether polyol in a mass ratio of 5:1, and the polyester polyol is an aromatic polyester polyol.

[0041] Mix the liquid black material and white material evenly ...

Embodiment 2

[0044] Select 30g of talcum powder with a mesh size of 400 or more, and expanded graphite with a mesh size of 100 or more. 70g, and mix them uniformly as inorganic powders totaling 100g.

[0045] Then 50g of it is mixed into 150g of polymethylene polyphenyl polyisocyanate (PAPI), triphenylmethane triisocyanate (TTI) and hexamethylene diisocyanate (HDI) according to the composition of mass ratio 5:2:1 In the isocyanate liquid material of the mixture, another 50g of inorganic powder was blended into 100g of polyether polyol and polyester polyol combined liquid material. Wherein, the mass ratio of polyether polyol and polyester polyol described in the polyether polyol and polyester polyol combination liquid material is 1:10; Described polyether polyol is graft type polyether A mixture of polyol and high temperature resistant polyether polyol in a mass ratio of 5:1, and the polyester polyol is an aromatic polyester polyol.

[0046]Mix the liquid black material and white material ...

Embodiment 3

[0049] Select 20g of expanded graphite above 100 mesh and 80g of kaolin above 200 mesh, and mix them uniformly as inorganic powder, totaling 100g.

[0050] Then 60g of it is mixed into 300g polymethylene polyphenyl polyisocyanate (PAPI), triphenylmethane triisocyanate (TTI) and hexamethylene diisocyanate (HDI) according to the composition of mass ratio 5:2:1 In the isocyanate liquid material of the mixture, another 40g of inorganic powder was blended into 100g of polyether polyol and polyester polyol combined liquid material. Wherein, the mass ratio of polyether polyol and polyester polyol described in the polyether polyol and polyester polyol combination liquid material is 1:10; Described polyether polyol is graft type polyether A mixture of polyol and high temperature resistant polyether polyol in a mass ratio of 5:1, and the polyester polyol is an aromatic polyester polyol.

[0051] Mix the liquid black material and white material evenly mixed with the inorganic powder, th...

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Abstract

The invention relates to a preparation method for a polymeric ceramic material. The preparation method comprises the following steps: selecting an isocyanate liquid material as a black material, selecting a polyether polyol and polyester polyol combined liquid material as a white material, and adding inorganic powder into both the black material and the white material; mixing the black material and the white material which contain the inorganic powder, and adding additives to obtain a mixture; conducting a polymerization reaction on the mixture in a mould injecting or free foaming manner, so as to obtain a required modified polyurethane rigid foam material finally, namely the polymeric ceramic material. The preparation method has the advantages that isocyanate and the polyether polyol and polyester polyol combined liquid material are mixed with various types of inorganic powder, and the inorganic powder has stable performance after being mixed with the polyurethane raw material, so that the oxygen index and the residual burning amount which are directly related to the anti-burning performance are improved, and the rigidity of the polymeric ceramic material is improved; meanwhile, the comprehensive performance of the polyurethane material is greatly improved due to addition of the additives.

Description

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

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/76C08G18/73C08G18/63C08G18/42C08G18/48C08K13/02C08K13/04C08K3/34C08K5/523C08K5/39C08K5/18C08K7/24C08G101/00
CPCC08G18/4208C08G18/48C08G18/632C08G18/73C08G18/7664C08K3/34C08K3/346C08K5/18C08K5/39C08K5/523C08K7/24C08K13/02C08K13/04C08G2110/0025
Inventor 张磊汤燕
Owner 陈民
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