Composite polyether for environmentally-friendly sheet material, polyurethane raw material composition, rigid polyurethane foam and preparation method and use of rigid polyurethane foam

A technology of combining polyether and foam stabilizer, applied in the field of polyurethane, can solve problems such as poor operability, environmental pollution, and high requirements for use conditions, and achieve the effects of low smoke density, environmental friendliness, and excellent flame retardant performance.

Active Publication Date: 2014-02-12
SHANGHAI DONGDA POLYURETHANE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem solved by the present invention is to overcome the defects that the atomized droplets of the existing polyurethane raw materials in the spraying construction process pollute the environment, and the requirements for use conditions are too high and the operability is poor, and a combined Polyether, polyurethane raw material composition, rigid polyurethane foam, preparation method and use thereof

Method used

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  • Composite polyether for environmentally-friendly sheet material, polyurethane raw material composition, rigid polyurethane foam and preparation method and use of rigid polyurethane foam
  • Composite polyether for environmentally-friendly sheet material, polyurethane raw material composition, rigid polyurethane foam and preparation method and use of rigid polyurethane foam
  • Composite polyether for environmentally-friendly sheet material, polyurethane raw material composition, rigid polyurethane foam and preparation method and use of rigid polyurethane foam

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] (1) Preparation of combined polyether:

[0046] Polyether polyol SU-450L 2 parts, polyester polyol PS-23528 parts, foam stabilizer B85250.2 parts, catalyst N,N'-dimethylbenzylamine 0.1 parts, Dabco TMR-20.2 parts and Dabco 33- 0.1 part of LV, 0.9 part of blowing agent n-pentane, 0.2 part of water and 2.5 parts of flame retardant TCPP.

[0047] According to the above formula, add each ingredient into a stainless steel mixing kettle, stir at a speed of 500 rpm at room temperature for 1 hour, and then discharge the ingredients.

[0048] (2) Preparation of rigid polyurethane foam board:

[0049] The combined polyether and isocyanate PM-200 of Example 1 were mixed at 20°C according to the mass ratio of 1:1.5, foamed in a high-pressure foaming machine at 20-25°C, injected into a double-track continuous molding machine, and the track temperature was 50- 60°C, the core density is about 40Kg / m 3 The rigid polyurethane foam board, the pouring surface material is color steel plat...

Embodiment 2

[0059] (1) Preparation of combined polyether:

[0060] Polyether polyol SU-450L 4 parts, polyester polyol PS-23526 parts, foam stabilizer B85250.2 parts, catalyst N,N'-dimethylbenzylamine 0.1 parts, Dabco TMR-20.2 parts and Dabco 33- 0.2 parts of LV, 0.9 parts of blowing agent n-pentane, 0.2 parts of water and 2.5 parts of flame retardant TCPP.

[0061] According to the above formula, add each ingredient into a stainless steel mixing kettle, stir at a speed of 500 rpm at room temperature for 1 hour, and then discharge the ingredients.

[0062] (2) Preparation of rigid polyurethane foam board:

[0063] The combined polyether and isocyanate PM-200 in Example 2 were mixed at 20°C according to the mass ratio of 1:1.5, foamed in a high-pressure foaming machine at 20-25°C, injected into a double-track continuous molding machine, and the track temperature was 50- 60°C, the core density is about 40Kg / m 3 The rigid polyurethane foam board, the pouring surface material is color steel...

Embodiment 3

[0073] (1) Preparation of combined polyether:

[0074] Polyether polyol SU-450L 3 parts, polyester polyol PS-23527 parts, foam stabilizer B85250.2 parts, catalyst N,N'-dimethylbenzylamine 0.1 parts, Dabco TMR-20.2 parts and Dabco 33- 0.15 parts of LV, 0.9 parts of blowing agent n-pentane, 0.2 parts of water and 2.5 parts of flame retardant TCPP.

[0075] According to the above formula, add each ingredient into a stainless steel mixing kettle, stir at a speed of 500 rpm at room temperature for 1 hour, and then discharge the ingredients.

[0076] (2) Preparation of rigid polyurethane foam board:

[0077] The combined polyether and isocyanate PM-200 of Example 3 were mixed at 20°C according to the mass ratio of 1:1.5, foamed in a high-pressure foaming machine at 20-25°C, injected into a double-track continuous molding machine, and the track temperature was 50- 60°C, the core density is about 40Kg / m 3 The rigid polyurethane foam board, the pouring surface material is color stee...

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Abstract

The invention discloses a composite polyether for an environmentally-friendly sheet material, rigid polyurethane foam and a preparation method of the rigid polyurethane foam. The composite polyether comprises, by weight, 2-4 parts of polyether polyol SU-450L, 6-8 parts of polyester polyol PS-2352, 0.2-0.3 parts of a foam stabilizer, 0.3-0.5 parts of a catalyst, 0.8-1.0 part of an alkane foaming agent, 0.18-0.22 parts of water and 2-3 parts of a fire retardant. Through use of the alkane foaming agent, the composite polyether has an ODP value of 0 and a low GWP value. The rigid polyurethane foam has excellent flame retardation, side stability and compressive strength. The polyurethane raw material composition has low smoke density in use, is environmentally friendly, and has strong operationality and wide application prospects in the building industry.

Description

technical field [0001] The invention relates to the field of polyurethane, in particular to a combined polyether, a polyurethane raw material composition, a rigid polyurethane foam prepared from the raw material composition, a preparation method and application thereof. Background technique [0002] Since 2005, China's building energy-saving standards have been significantly improved. To achieve the 65% energy-saving target by 2020, comprehensive energy-saving measures must be implemented on 43 billion square meters of building exterior walls. [0003] Rigid polyurethane foam is an excellent thermal insulation material, and it also has many advantages such as sound insulation, moisture resistance, and corrosion resistance. It is widely used in refrigerators, freezers, heating, water heaters and other industries. In developed countries, the sales market of rigid polyurethane foam is dominated by construction, accounting for more than 50%, and the refrigeration industry accoun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/48C08G18/42C08J9/14C08K5/521C08K5/5333C08L75/08C08L75/06
CPCC08G18/42C08G18/48C08J9/0038C08J9/141C08J2203/14C08J2205/10C08J2375/06C08J2375/08C08G2110/0025
Inventor 李心强信延垒许凤华倪军
Owner SHANGHAI DONGDA POLYURETHANE
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