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Polyurethane rigid foam material for external thermal insulation system of external wall

A polyurethane rigid foam and external wall thermal insulation technology, which is applied in thermal insulation, walls, climate change adaptation, etc., can solve the problems of high cost, swelling, falling off, etc., achieve smooth surface, strong adhesion, and relieve wall cracks Effect

Inactive Publication Date: 2008-01-23
青岛金北洋工程材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The invention provides a polyurethane rigid foam external wall insulation system material, which can solve the problems of high cost, easy delamination, bulging and falling off in the prior art

Method used

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  • Polyurethane rigid foam material for external thermal insulation system of external wall

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preparation example Construction

[0041] The invention relates to a rigid polyurethane foam for construction that can be directly sprayed on the wall and its matching external wall insulation material system, in particular to spray-coated modified asphalt polyurethane rigid foam, creosote polyurethane rigid foam and Rosin polyester polyurethane rigid foam and its preparation method, polyurethane moisture-proof primer and its preparation method matched with the rigid foam, vinyl acetate-ethylene copolymer emulsion interface agent and crack-resistant polymer dry prepared by redispersible latex powder Mortar-mixed plastering layer and preparation method thereof.

[0042] The present invention is realized by following technical scheme:

[0043] (1) Prepare spray-type polyurethane rigid foam combination polyether polyol;

[0044] (2) Carry out chemical foaming with prepared combination polyether polyol and polyisocyanate to prepare spray polyurethane rigid foam;

[0045] (3) Synthetic polyurethane moisture-proof ...

Embodiment 1

[0057] Embodiment 1. modified coal tar pitch polyurethane rigid foam

[0058] serial number

Name

parts by mass

1

Sucrose polyether polyol

40-60

2

Ethylenediamine polyether polyol

60-40

3

Modified coal tar pitch

60-80

4

Silicone Foam Stabilizer CGY-1

4-6

5

Triethanolamine crosslinking agent

20-30

6

Castor Oil Crosslinker

10-20

7

2,4,6-tris(dimethylaminomethyl)phenol

10-15

8

Potassium acetate

1.5-3.0

9

Dibutyltin dilaurate

0.5-1.0

10

TCEP

22-30

11

DMMP

8-15

12

water

1-2

13

Fluorodichloroethane

40-60

14

Polyisocyanate curing agent (isocyanate index)

1.05-1.10

[0059] Typical Foam Properties:

[0060] Free foam density: 32kg / m 3 ; Water absorption (V / V) 1.2%; Compres...

Embodiment 2

[0061] Embodiment 2. rosin polyester polyurethane rigid foam

[0062] serial number

name

parts by mass

1

Sucrose polyether polyol

40-60

2

Ethylenediamine polyether polyol

60-40

3

Rosin polyester

80-100

4

Silicone Foam Stabilizer AK8801

4-6

5

Triethanolamine crosslinking agent

30-50

6

2,4,6-tris(dimethylaminomethyl)phenol

6-8

7

Triethylenediamine

4-7

8

Potassium acetate

1.5-3.0

9

Dibutyltin dilaurate

0.5-1.0

10

TCEP

22-30

11

DMMP

8-15

12

water

1-2

13

Fluorodichloroethane

40-60

14

Polyisocyanate curing agent (isocyanate refers to

number)

1.05-1.10

[0063] Typical Foam Properties:

[0064] Free foam density: 30.6kg / m 3 ; Compressive strength: 164kpa; Wa...

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Abstract

The invention provides a external thermal-insulated system material of polyurethane rigid foam, which is characterized in that: said system material comprises polyurethane dampproof bottom paint, polyurethane rigid foam material, surface agent, anti-break polymer cement sand pulp containing glass fiber grid cloth and a paint decorated surface. The invention can reach compatibility and balance between each layer of external thermal-insulated material to be an organic integration. The layers can flexibly release distortion stress to effectively reduce the generation of seams on said wall, and flatten the surface of polyurethane rigid foam, without concave-convex surface. And the layers have strong adhesive force, to avoid departure between them.

Description

technical field [0001] The invention relates to a rigid polyurethane foam plastic used in construction that can be directly sprayed on the wall and the material for the external thermal insulation system of the external wall matched therewith. Background technique [0002] In recent years, with the rapid development of the urban construction industry, many new products have been continuously developed for external wall insulation materials in buildings. [0003] For example, the expansion perlite and sepiolite cement mortar thermal insulation slurry external wall thermal insulation system has the disadvantages of high water absorption, large drying shrinkage deformation and temperature and humidity deformation, easy cracking, falling off and poor thermal insulation performance. [0004] Rubber powder polystyrene particle cement mortar insulation slurry, because of its high thermal conductivity, usually greater than 0.07w / (m.k), is not economically reasonable to meet the requ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04F13/00E04B2/00E04B1/76
CPCY02A30/244
Inventor 张树华
Owner 青岛金北洋工程材料有限公司
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