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Premixed polyether polyol for polyurethane insulation board for electrothermic floor heating system and application method of premixed polyether polyol

A technology of polyurethane thermal insulation board and combined polyether, which is applied in the field of combined polyether, can solve the problem that it is difficult to satisfy flame retardancy and high compressive strength at the same time, and achieve the effects of good adhesion, high foam strength and stable performance.

Active Publication Date: 2015-03-11
SHANDONG INOV NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When the traditional combination of polyether is used in polyurethane insulation boards for floor heating, it is difficult to meet the requirements of flame retardancy and high compressive strength at the same time, but flame retardancy and high compressive strength are the basic requirements of polyurethane insulation boards for floor heating, so it is necessary to combine Polyethers for further development and improvement

Method used

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  • Premixed polyether polyol for polyurethane insulation board for electrothermic floor heating system and application method of premixed polyether polyol
  • Premixed polyether polyol for polyurethane insulation board for electrothermic floor heating system and application method of premixed polyether polyol
  • Premixed polyether polyol for polyurethane insulation board for electrothermic floor heating system and application method of premixed polyether polyol

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) Preparation of component A, 200kg: Weigh polyether polyol A: EDS-5083, 70kg (Jiangsu Changneng), polyether polyol B, SA460 (Bluestar Dongda), 23kg, polyether polyol C: 403 (Bluestar Dongda), 6kg, foam stabilizer L-6920 (Momentive), 1.5kg and AK-6688 (Momentive), 0.5kg, deionized water, 3kg, catalyst selection N, N -Dimethylcyclohexylamine, N,N,N',N",N"-pentamethyldiethylenetriamine, tetramethylethylenediamine, and a mixture of potassium isooctanoate, each weighing 2.2kg, 1kg, 1.5kg and 0.8kg, physical blowing agent HFC-365mfc / n-pentane (a mixture of HFC-365mfc and n-pentane, the weight ratio of the two is 29:21), 50kg, flame retardant TCPP, 40kg.

[0033] Add the weighed polyether polyol A, polyether polyol B, polyether polyol C, foam stabilizer, chemical foaming agent, catalyst, flame retardant, and physical foaming agent into the reaction kettle in sequence, at room temperature Stir for 0.5 hour and mix well.

[0034] (2) Weigh component B: diphenylmethane diisocyana...

Embodiment 2

[0037] (1) Prepare component A, prepare component A, 200kg: Weigh polyether polyol A: EDS-5083, 75kg (Jiangsu Changneng), polyether polyol B, SA460 (Bluestar Dongda), 18kg , Polyether polyol C: 403 (Bluestar Dongda), 2kg, foam stabilizer L-6952 (Momentive), 1kg and AK-6688 (Momentive), 1kg, deionized water, 2.2kg, catalyst Choose the mixture of N,N-dimethylcyclohexylamine, tetramethylethylenediamine, potassium isooctanoate, the weights are 3.1kg, 0.9kg and 1.8kg respectively, the physical blowing agent HFC-365mfc / n-pentane (HFC -A mixture of 365mfc and n-pentane, the weight ratio of the two is 29:21), 55kg, flame retardant TCPP, 20kg.

[0038] Add the weighed polyether polyol A, polyether polyol B, polyester polyol, foam stabilizer, chemical foaming agent, catalyst, flame retardant, and physical foaming agent into the reaction kettle in sequence, and at room temperature Stir for 0.8 hours and mix well.

[0039] (2) Weigh component B: diphenylmethane diisocyanate, 330kg.

[0040] (...

Embodiment 3

[0042] (1) Preparation of component A, 200kg: Weigh polyether polyol A: EDS-5083, 80kg (Jiangsu Changneng), polyether polyol B, SA460 (Bluestar Dongda), 22kg, foam stabilizer B -8545 (Evonik Degussa), 2kg and AK-6688 (Momentive), 1kg, water, 3kg, the catalyst is N,N-dimethylcyclohexylamine, N,N,N',N" ,N"-Pentamethyldiethylenetriamine, a mixture of tetramethylethylenediamine and potassium isooctanoate, weights are 1.4kg, 1.2kg, 0.9kg and 1.5kg, physical blowing agent HFC-365mfc / N-pentane (a mixture of HFC-365mfc and n-pentane, the weight ratio of the two is 29:21), 52kg, flame retardant TCPP, 35kg.

[0043] Add the weighed polyether polyol A, polyether polyol B, polyester polyol, foam stabilizer, chemical foaming agent, catalyst, flame retardant, and physical foaming agent into the reaction kettle in sequence, and at room temperature Stir for 1.0 hour and mix well.

[0044] (2) Weigh component B: polymethyl polyphenyl isocyanate, 324 kg.

[0045] (3) Component A and component B ar...

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Abstract

The invention relates to premixed polyether polyol for a polyurethane insulation board for an electrothermic floor heating system and an application method of the premixed polyether polyol and belongs to the technical field of premixed polyether polyol. The premixed polyether polyol, which is disclosed by the invention, for the polyurethane insulation board for the electrothermic floor heating system consists of polyether polyol A, polyether polyol B, polyether polyol C, a foam stabilizer, a chemical foaming agent, a physical foaming agent, a catalyst and a flame retardant. The premixed polyether polyol, which is disclosed by the invention, for the polyurethane insulation board for the electrothermic floor heating system is wide in raw material source and is low in cost; the polyurethane insulation board prepared from the premixed polyether polyol has high low-temperature size stability, the heat conductivity coefficient of the polyurethane insulation board meets the use requirements, compression intensity is high and flame retardance is good; the invention also provides the application method of the premixed polyether polyol for the polyurethane insulation board for the electrothermic floor heating system; and the application method is simple in process and is high in production efficiency.

Description

Technical field [0001] The invention relates to a polyurethane thermal insulation board combined polyether used for electric heating type floor heating and an application method thereof, belonging to the technical field of combined polyether. Background technique [0002] Indoor floor heating system is a new heating method in recent years. It is generally laid between the floor heating heater and the structural floor, which can effectively prevent the heat insulation energy from dissipating to the structural floor and achieve the purpose of maintaining indoor temperature during the heating season and reducing energy consumption. . Floor heating is divided into water floor heating and electric floor heating. Both water floor heating and electric floor heating belong to low-temperature radiant heating. They are both comfortable heating methods. The difference is their heat source. Water floor heating uses low-temperature hot water not higher than 60℃ as the heat medium. The floor ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/48C08G18/76C08J9/14C08J9/08C08K5/521C08G101/00
CPCC08G18/4816C08G18/7664C08G18/7671C08G2101/00C08J9/08C08J9/141C08J9/146C08J9/149C08J2203/02C08J2203/14C08J2203/142C08J2203/204C08J2375/08C08K5/521
Inventor 徐业峰张佳佳李明友殷晓峰朱文静
Owner SHANDONG INOV NEW MATERIALS CO LTD
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