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Double-component polyurethane foaming adhesive for attaching XPS and EPS walls and preparation method thereof

A technology of two-component polyurethane foam, which is applied in the field of two-component polyurethane foam and polyurethane two-component foam, and can solve the problems of material waste, environmental pollution, poor bonding force, etc.

Inactive Publication Date: 2010-09-29
辽宁鼎力科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to solve the shortcomings of traditional adhesives such as material waste, complicated process, polluting the environment, and poor bonding force, the two-component polyurethane foam adhesive of the present invention has controllable sticking time, temperature resistance, cold resistance, hydrolysis resistance, and high strength. , strong adhesion, so the adhesive paste condition is loose, saving man-hours and costs

Method used

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  • Double-component polyurethane foaming adhesive for attaching XPS and EPS walls and preparation method thereof
  • Double-component polyurethane foaming adhesive for attaching XPS and EPS walls and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] 1. Preparation of white material (polyol)

[0021] Step 1: Take 60% polyether polyol and polymerize with triethylene ditertiary amine and glycerin raw materials first, and stir at a high speed at a temperature of 18-25°C to be even.

[0022] Step 2: Add other components such as sorbitol, trimethylolpropane, triethanolamine, 1.8 diazacycloundecene, magnesium hydroxide, silicone oil, antioxidant, etc. to the polymerization product of step 1 according to the ratio, and heat to 40 ~ 50 ℃, and stirring for about 2 to 3 hours, that is complete.

[0023] Step 3: After cooling the white material prepared in Step 2, put it in barrels and seal it, and store it in a cool place.

[0024] 2. Preparation of black material (ISO)

[0025] Step 1: Put 50% of modified polyol diphenylmethane diisocyanate, 35% polymethylene phenyl isocyanate, and 15% plasticizer (styrene) into a container.

[0026] Step 2: Heat the raw materials in the above step 1 to 50-60°C, and stir for about 1 hour ...

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Abstract

The invention relates to a double-component polyurethane foaming adhesive for buildings. The foaming adhesive is dedicated for adhering polystyrene board (EPS), cement board (GRC) and extruded sheet (XPS) internal and external wall insulation boards. The double-component polyurethane foaming adhesive has controllable adhering time and has temperature resistance, cold resistance, hydrolysis resistance and strong adhesive power. When the double-component polyurethane foaming adhesive is adhered to the wall, a user can loose hand in time to assemble a fastener. Compared with the conventional adhesive, the double-component polyurethane foaming adhesive saves working hours and cost, also relates to energy saving of a building system and greatly reduces waste generated in the constructing process. A material of the invention is formed by mixing an A adhesive (a white material) with a B adhesive (a black material). The range of the mass ratio of the A adhesive to the B adhesive is wide. 100 parts by mass of A adhesive and 50 to 70 parts by mass of B adhesive can be attached and do not influence the bonding strength. The double-component polyurethane foaming adhesive can be operated in harsh environment of low temperature between minus 3 DEG C and 5 DEG C, but the walls must be dried. The A and B adhesives can be bonded after being mixed precisely and stirred uniformly. Under the condition that the wall is not flat slightly, microfoam of the double-component polyurethane foaming adhesive of the invention can help to fill in gaps between the boards and the wall to make the inside generate an isolation layer to more achieve the effects of insulating heat and preserving heat.

Description

technical field [0001] The invention belongs to the technical field of building materials, and relates to a two-component polyurethane foam glue used for laminating interior and exterior walls in buildings, especially a two-component polyurethane foam glue specially used for pasting cement walls with XPS and EPS insulation boards in buildings Styrofoam. Background technique [0002] In recent years, with the continuous advancement of China's building energy-saving work and the development of external thermal insulation technology, cement, EPS or XPS construction methods are generally used to process and paste thermal insulation laminates on external walls. Paste materials are mostly made of cement, hanging nets, nails, etc. The strength of these paste materials increases during construction and takes a long time to harden. The disadvantages are summarized as follows: [0003] (1) Cement and epoxy glue are generally used, and the bonding time is too long, which must be 3 hou...

Claims

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Application Information

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IPC IPC(8): C09J175/08E04B1/80
Inventor 张东辉
Owner 辽宁鼎力科技有限责任公司
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