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Foaming raw material of bio-based polyurethane foaming plastic foamed by pentane serving as foaming agent and product thereof

A technology of foamed plastics and foaming raw materials, applied in the field of bio-based polyurethane foamed plastics foamed raw materials and its products, can solve the problems of high dosage and poor dimensional stability of rigid polyurethane foamed plastics, and achieve the effect of easy degradation

Inactive Publication Date: 2010-11-24
ZIBO LIANCHUANG POLYURETHANE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] According to the existing formula, if the rigid polyurethane foam adopts cyclopentane as blowing agent, the consumption of bio-based polyether polyol is high (such as exceeding 10% of the total weight of raw materials), and the dimensional stability of the obtained rigid polyurethane foam will be reduced. Therefore, when producing polyurethane insulation layers in refrigerators and other electrical equipment, the industry always avoids using pentane and bio-based polyether polyols at the same time, or uses them at the same time, but the amount of bio-based polyether polyols is negligible Almost, according to the definition of relevant European agencies: the amount of bio-based polyether polyol is less than 20%, and it cannot be called bio-based polyurethane foam

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0007] Embodiment 1: Take 5.7kg bio-based polyether polyol, 0.8kg high activity polyether polyol and 2.0kg functionality is 3 petroleum-based polyether polyol and 1.5kg functionality is 5 petroleum-based polyether polyol, evenly Mixed into 10kg polyether polyol mixture.

[0008] Get 0.2kg foam stabilizer, 0.1kg deionized water, 0.2kg composite catalyst (composite catalyst is mixed by the weight ratio of 1: 0.2 by tertiary amine catalyst and trimer catalyst) and 1.2kg cyclopentane, with aforementioned 10kg The polyether polyol mixture is uniformly mixed into material A and packaged separately.

[0009] Take another 13.5kg PAPI and pack it separately into material B.

Embodiment 2

[0010] Embodiment two: get 6.2kg bio-based polyether polyol, 0.8kg highly reactive polyether polyol and 1.5kg functionality is 3 petroleum-based polyether polyol and 1.5kg functionality is 6 petroleum-based polyether polyol, evenly Mixed into 10kg polyether polyol mixture.

[0011] Get 0.3kg foam stabilizer, 0.15kg deionized water, 0.4kg composite catalyst (composite catalyst is mixed by the weight ratio of 1:5 by tertiary amine catalyst and trimer catalyst) and 1.4kg cyclopentane, with aforementioned 10kg The polyether polyol mixture is uniformly mixed into material A and packaged separately.

[0012] Take another 14.5kg of PAPI and pack it separately into material B.

Embodiment 3

[0013] Embodiment three: get 5.7kg bio-based polyether polyol, 0.8kg highly active polyether polyol and 1.8kg functionality is 4 petroleum-based polyether polyol and 1.7kg functionality is 5 petroleum-based polyether polyol, evenly Mixed into 10kg polyether polyol mixture.

[0014] Get 0.25kg foam stabilizer, 0.125kg deionized water, 0.3kg composite catalyst (composite catalyst is mixed by tertiary amine catalyst and trimer catalyst in a weight ratio of 1: 1) and 1.3kg cyclopentane, and the aforementioned 10kg The polyether polyol mixture is uniformly mixed into material A and packaged separately.

[0015] Take another 14.5kg of PAPI and pack it separately into material B.

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Abstract

The invention relates to a foaming raw material of bio-based polyurethane foaming plastic foamed by pentane serving as a foaming agent and a product thereof. The conventional pentane-foamed bio-based polyurethane foaming plastic has poor dimensional stability. Therefore, the foaming raw material comprises a material A and a material B separately packaged, wherein the material A consists of 100 weight parts of polyether polyols, 2 to 3 weight parts of foam stabilizer, 1.0 to 1.5 weight parts of deionized water, 2 to 4 weight parts of composite catalyst and 12 to 14 weight parts of cyclopentane or isopentane; and the material B comprises 135 to 155 weight parts of PAPI, wherein the 100 weight parts of polyether polyols in the material A consists of 57 to 62 weight percent of bio-based polyether polyols, 15 to 20 weight percent of petroleum-based polyether polyols with the functionality of 3 or 4, 8 to 12 weight percent of high-activity polyether polyols and 15 to 20 weight percent of petroleum-based polyether polyols with the functionality of 5 or 6. The foaming raw material is suitable to be used as a thermal insulation material of electric equipment.

Description

technical field [0001] The invention relates to a bio-based polyurethane foam foaming raw material with pentane as a foaming agent and its products. Background technique [0002] According to the existing formula, if the rigid polyurethane foam adopts cyclopentane as blowing agent, the consumption of bio-based polyether polyol is high (such as exceeding 10% of the total weight of raw materials), and the dimensional stability of the obtained rigid polyurethane foam will be reduced. Therefore, when producing polyurethane insulation layers in refrigerators and other electrical equipment, the industry always avoids using pentane and bio-based polyether polyols at the same time, or uses them at the same time, but the amount of bio-based polyether polyols is negligible Almost, according to the definition of relevant European agencies: the amount of bio-based polyether polyol is less than 20%, which cannot be called bio-based polyurethane foam. Contents of the invention [0003]...

Claims

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Application Information

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IPC IPC(8): C08G18/48C08J9/14C08G101/00
Inventor 李洪国
Owner ZIBO LIANCHUANG POLYURETHANE
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