Coarse-cell polyurethane foam board produced with wet method

A polyurethane foam board and cell technology, which is applied in the field of polyurethane foam, can solve the problems of affecting product quality, low production efficiency, and easy explosion of interior ceilings, so as to improve the molding production efficiency, reduce the production molding waste rate, and highlight the essence effects of sexuality

Active Publication Date: 2012-04-04
YANTAI ZHENGHAI HIGH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art, and

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Example 1, accurately weigh 100Kg of polyether 1000 and polyether 450, amine catalysts A-33 and AS-330.1Kg, foaming agent water 5Kg, hard foam silicone oil AK8805 1.0Kg, soft foam silicone oil and high resilience silicone oil 0.5Kg of the mixture, 0.1Kg of delayed catalyst C-225, 1Kg of organosilicon series cell opener, mix them evenly, then mix with PM-200 120Kg and stir at high speed for 40 seconds, foaming into large polyurethane foam blocks, plasticized De-edge and slice the polyurethane foam blocks to prepare coarse-cell polyurethane foam boards for the interior ceiling of high-end cars.

Embodiment 2

[0013] Example 2, accurately weigh 100Kg of polyether 330N, polyether 700, polyether 3050, polyether TED2817 and polyether 260, 2.0Kg of hard foam silicone oil AK-8835, 1.5Kg of a mixture of soft foam silicone oil and high resilience silicone oil , amine catalyst DMEA, C6608 and HP15 0.5Kg, blowing agent HCFC-141b 20Kg, delayed catalyst LY-95 0.3Kg, organosilicon series cell opener 2.0Kg, mix them evenly, and then mix with 44V20 160Kg and stir at high speed In 45 seconds, the foamed polyurethane foam block was formed, and the plasticized polyurethane foam block was removed and sliced ​​to obtain a thick-cell polyurethane foam board for the interior ceiling of high-end cars.

Embodiment 3

[0014] Example 3, accurately weigh 100Kg of polyether 1000, polyether 450 and polyester 3152, 0.3Kg of amine catalysts HP15 and HP301, 12.5Kg of foaming agent HCFC-141b and water, soft foam silicone oil and high resilience silicone oil The mixture is 0.85Kg, hard foam silicone oil L-6860 1.55Kg, delayed catalyst C-225 0.2Kg, organosilicon series cell opener 1.25Kg, mix them evenly, then mix with M20S 140Kg and stir at high speed for 40 seconds, foaming into polyurethane foam Foam block, the plasticized polyurethane foam block is removed and sliced ​​to prepare a coarse-cell polyurethane foam board dedicated to the interior ceiling of high-end cars.

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PUM

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Abstract

The invention discloses a coarse-cell polyurethane foam board produced with a wet method. The foam board is characterized in that: the foam board is produced from materials of, by weight: 100 parts of a mixture of 2-5 types of polyether glycol or 2-3 types of polyether glycol and 1-2 types of polyester polyol, 1-2 parts of 1-2 types of hard-bubble silicone oil, 0.1-0.5 parts of 2-3 types of aminecatalysts, 5-20 parts of a foaming agent, 0.5-1.5 parts of mixed silicone oil, 0.1-0.3 parts of a delayed action catalyst, 1.0-2.0 parts of an open-cell agent, and 120-160 parts of coarse MDI. The produced polyurethane foam board has cell sizes of 1-1.5mm. With the foam board, molding production efficiency of car inner decorative ceilings is improved by above 30%, and a rejection rate of the car inner decorative ceiling molding production is reduced by above 5%.

Description

Technical field: [0001] The invention relates to the technical field of polyurethane foaming, in particular to a wet-process coarse-cell polyurethane foam board, which is suitable for the ceiling interior decoration of high-end cars, especially the ceiling of Audi cars. Background technique: [0002] At present, the interior ceiling of high-end cars is made by wet method, that is, the polyurethane foam board is double-sided glued or roller glued, sprinkled with water, and then compounded with non-woven fabrics, glass fibers, etc., and then molded, heated and solidified to form the prototype of the car interior ceiling. [0003] For some high-end cars, such as Audi cars, the roof is formed by ordinary polyurethane foam board due to its shape and mold, and the repair rate and defect rate are over 30%. cutting, which improves the production efficiency, but due to the PU sheet roller rubber and water spraying during wet forming, the reaction generates CO2 and water vaporization ...

Claims

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Application Information

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IPC IPC(8): C08L75/08C08L75/06C08G18/48C08G18/42C08J9/08C08J9/14C08G101/00
Inventor 盛习民柳春斌
Owner YANTAI ZHENGHAI HIGH TECH
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