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Environment-friendly urethane foam insulation material and preparation method thereof

A technology of polyurethane foam and thermal insulation materials, applied in the field of thermal insulation materials, can solve problems such as damage, reduce production costs and improve environmental protection

Inactive Publication Date: 2019-08-27
XUZHOU COLLEGE OF INDAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional methods usually use chlorofluorocarbons as blowing agents when preparing polyurethane rigid foams, but chlorofluorocarbons are restricted due to the destruction of the atmospheric ozone layer. Therefore, under the premise that polyurethane rigid foams are so widely used , in order not to affect the application of polyurethane foam, the environmental protection of polyurethane foam must be improved

Method used

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  • Environment-friendly urethane foam insulation material and preparation method thereof
  • Environment-friendly urethane foam insulation material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] An environment-friendly polyurethane foam insulation material, made of the following raw materials: 100kg of polyether polyol, 100kg of isocyanate, 1kg of catalyst, 2kg of water, 2kg of pulp waste liquor with a pH of 9 obtained from alkaline pulping, and 1kg of foam stabilizer;

[0025] The above-mentioned environment-friendly polyurethane foam insulation material is prepared by the following steps:

[0026] S1: Weigh the following raw materials respectively, polypolyol (a mixture of pentaerythritol ether and glycerol polyether in a mass ratio of 1:3, with a hydroxyl value of 500mgKOH / g and a viscosity of 3600mPa·s) 100kg, isocyanate 100kg, catalyst ( N, N-dimethylcyclohexylamine) 1kg, water 2kg, pulp waste liquid 2kg, foam stabilizer (silicone oil) 1kg;

[0027] S2: Put polyether polyol, catalyst, water, pulp waste liquid and foam stabilizer in a mixer, and stir evenly for 30 minutes to prepare mixture a;

[0028] S3: under stirring conditions, add isocyanate to the m...

Embodiment 2

[0031] An environment-friendly polyurethane foam insulation material, made of the following raw materials: 120kg of polyether polyol, 130kg of isocyanate, 3kg of catalyst, 4kg of water, 5kg of pulp waste liquor with a pH of 10 obtained from alkaline pulping, and 3kg of foam stabilizer;

[0032] The above-mentioned environment-friendly polyurethane foam insulation material is prepared by the following steps:

[0033] S1: Weigh the following raw materials respectively, polyether polyol (a mixture of pentaerythritol ether and glycerol polyether in a mass ratio of 1:5, the hydroxyl value is 520mgKOH / g, and the viscosity is 3700mPa·s100kg) 120kg, isocyanate 130kg, catalyst ( Diethanol monoisopropanolamine) 3kg, water 4kg, pulp waste liquid 5kg, foam stabilizer (silicone oil) 3kg;

[0034] S2: Put polyether polyol, catalyst, water, pulp waste liquid and foam stabilizer in a mixer, and stir evenly for 40 minutes to prepare mixture a;

[0035] S3: under stirring conditions, add isocy...

Embodiment 3

[0038] An environmentally friendly polyurethane foam insulation material, made of the following raw materials: 140kg of polyether polyol, 150kg of isocyanate, 5kg of catalyst, 6kg of water, 6kg of pulp waste liquor with a pH of 9.2 obtained from alkaline pulping, and 4kg of foam stabilizer;

[0039] The above-mentioned environment-friendly polyurethane foam insulation material is prepared by the following steps:

[0040] S1: Weigh the following raw materials respectively, polyether polyol (a mixture of pentaerythritol ether and glycerol polyether in a mass ratio of 1:4, the hydroxyl value is 510mgKOH / g, and the viscosity is 3650mPa·s100kg) 140kg, isocyanate 150kg, catalyst ( Hydroxyethylethylenediamine) 5kg, water 6kg, pulp waste liquid 6kg, foam stabilizer (silicone oil) 4kg;

[0041] S2: Put polyether polyol, catalyst, water, pulp waste liquid and foam stabilizer in a mixer, and stir evenly for 45 minutes to prepare mixture a;

[0042] S3: under stirring conditions, add iso...

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Abstract

The invention discloses an environment-friendly urethane foam insulation material and a preparation method of the material and belongs to the technical field of insulation materials. The material is prepared from the following raw materials in parts by weight: 100-150 parts of polyether polyol, 100-170 parts of isocyanate, 1-6 parts of catalyst, 2-7 parts of water, 2-7 parts of spent pulping liquor and 1-4 parts of foam stabilizer. The urethane foam insulation material is successfully prepared by replacing original chlorofluorocarbon with the spent pulping liquor as a foaming agent; the environmental friendliness of the urethane foam insulation material is improved; at the same time, the production cost is lowered; in addition, the spent pulping liquor is effectively utilized and changed into valuables; and the material is energy-saving and environment-friendly and meets a green and sustainable development concept.

Description

technical field [0001] The invention belongs to the technical field of thermal insulation materials, and in particular relates to an environment-friendly polyurethane foam thermal insulation material and a preparation method thereof. Background technique [0002] Polyurethane rigid foam is made of isocyanate and polyether as the main raw materials, under the action of various additives such as foaming agent, catalyst, flame retardant, mixed by special equipment, and foamed on-site by high-pressure spraying polymer. Polyurethane rigid foam is a new type of synthetic material with thermal insulation and waterproof functions. Its thermal conductivity is low, equivalent to half of extruded board, and it is the lowest thermal conductivity of all thermal insulation materials. Rigid polyurethane foam is mainly used in construction. External wall insulation, roof waterproof and thermal insulation integration, cold storage insulation, pipeline insulation materials, building panels, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/14C08G18/48C08G18/08C08L75/08C08G101/00
CPCC08G18/08C08G18/4804C08G2101/00C08J9/14C08J2375/08
Inventor 张晓红
Owner XUZHOU COLLEGE OF INDAL TECH
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