Pentane type composite polyether and composition containing same, rigid polyurethane rigid foam and application thereof

A combination of polyether and pentane-type technology, applied in the energy industry, solar thermal devices, solar thermal power generation, etc., can solve the problems of poor compatibility and unsuitable solar water heaters, and achieve good compatibility, obvious environmental protection advantages, Good fluidity effect

Inactive Publication Date: 2012-07-25
SHANGHAI DONGDA POLYURETHANE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a kind of Pentane type combination polyether, a kind of composition for preparing polyurethane rigid foam, a kind of polyurethane rigid foam and application thereof

Method used

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  • Pentane type composite polyether and composition containing same, rigid polyurethane rigid foam and application thereof
  • Pentane type composite polyether and composition containing same, rigid polyurethane rigid foam and application thereof
  • Pentane type composite polyether and composition containing same, rigid polyurethane rigid foam and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] 1. Formula of cyclo / isopentane combined polyether:

[0039] Polyether polyol 8210H 7 parts, polyether polyol SA4603 parts, silicone foam stabilizer B8462 0.2 parts, N,N,N`,N``,N```-pentamethyldiethylenetri 0.02 parts of amine, 0.20 parts of triethylenediamine, 0.08 parts of potassium isooctanoate, 0.7 parts of cyclopentane, 0.3 parts of isopentane and 0.10 parts of deionized water.

[0040] 2. The preparation method of the cyclo / isopentane type combined polyether: according to the formula of the cyclo / isopentane type combined polyether, the above components are stirred at room temperature at a speed of 500 revolutions per minute for 2 hours, and the material is released.

[0041] 3. Preparation of polyurethane rigid foam insulation material: the cyclo / isopentane combined polyether and isocyanate are reacted at 20°C at a mass ratio of 1:1.15 to obtain a foam density of 35kg / m 3 Polyurethane rigid foam insulation material for solar energy. The physical and chemical properties of...

Embodiment 2

[0048] 1. The formula of cyclopentane type combined polyether:

[0049] Polyether polyol 8210H 8 parts, polyether polyol SA4602 parts, silicone foam stabilizer L6900 0.3 parts, N,N,N`,N``,N```-pentamethyldiethylenetri 0.03 part of amine, 0.15 part of triethylenediamine, 0.12 part of potassium acetate, 1.0 part of cyclopentane and 0.05 part of deionized water.

[0050] 2. Preparation method of cyclopentane-type combined polyether: according to the formula of cyclopentane-type combined polyether, stir the above-mentioned components at room temperature at a speed of 500 revolutions per minute for 2 hours, and then discharge the materials.

[0051] 3. Preparation of polyurethane rigid foam insulation material: the cyclopentane combined polyether and isocyanate are reacted at a mass ratio of 1:1.0 at 25°C to obtain a foam density of 37kg / m 3 Polyurethane rigid foam insulation material for solar energy. The physical and chemical properties of the polyurethane rigid foam are shown in Table ...

Embodiment 3

[0058] 1. The formula of cyclopentane type combined polyether:

[0059] Polyether polyol 8210H 6 parts, polyether polyol SA4604 parts, silicone foam stabilizer L6900 0.2 parts, N,N,N`,N``,N```-pentamethyldiethylenetri 0.02 part of amine, 0.1 part of triethylenediamine, 0.1 part of potassium oleate, 1.3 part of cyclopentane and 0.08 part of deionized water.

[0060] 2. Preparation method of cyclopentane-type combined polyether: according to the formula of cyclopentane-type combined polyether, stir the above-mentioned components at room temperature at a speed of 500 revolutions per minute for 2 hours, and then discharge the materials.

[0061] 3. Preparation of polyurethane rigid foam insulation material: the mass ratio of the above cyclopentane-type combined polyether and isocyanate is 1:1.30, and the foam density is 38kg / m 3 Polyurethane rigid foam insulation material for solar energy.

[0062] 4. Comparison 3 Preparation of polyurethane rigid foam insulation material:

[0063] 1. HCFC...

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Abstract

The invention provides pentane type composite polyether, which comprises the following components: polyether polyol 8210H, polyether polyol SA460, foam stabilizer, polyurethane synthesis catalyst, pentane foaming agent and water. In the pentane type composite polyether, pentane is used as the foaming agent; the pentane foaming agent has the advantages of low GWP value and zero ODP value and completely conforms to the environmental protection requirements for replacing HCFC-141B in the industry of a solar water heater, while the cost is low. The composite polyether overcomes the shortcoming oflow compatibility between pentane and polyether and has high compatibility with pentane, high flow property and good foaming effect; and the viscosity of the composite polyether is suitable for the production technology of the solar water heater. The composite polymer has obvious advantages on application in the industry of solar water heater. The rigid polyurethane foam prepared by the action between the composite polymer and isocyanate has high heat conductivity and size stability.

Description

Technical field [0001] The present invention relates to the field of polyurethane rigid foam foaming, in particular to a pentane type combined polyether. The present invention also relates to a composition containing the pentane type combined polyether, and a composition made from the pentane type combined polyether The obtained rigid polyurethane foam and its application. Background technique [0002] With the wide application of rigid polyurethane foam, its negative impact on the environment has also attracted more and more attention. The refrigerator-freezer industry in my country has basically shifted from HCFC-141B type combined polyether to cyclopentane type combined polyether. But in the solar energy industry, HCFC-141B combined polyether is still the mainstay. However, as a transitional product, HCFC-141B will still cause damage to the atmospheric ozone layer. Catalyzed by the low-carbon economy, the demand for "green" polyurethane rigid foams with low global warming p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/48C08J9/14C08L75/08F24J2/51C08G101/00
CPCY02E10/40Y02P80/20
Inventor 李心强李欣郑广朋于楠
Owner SHANGHAI DONGDA POLYURETHANE
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