Polyurethane waterproof coating material

A polyurethane waterproof and coating technology, which is applied in the field of architectural waterproof coatings, can solve the problem that the right-angle tear strength of high-strength polyurethane waterproof coatings cannot meet the national standards, and achieve high bonding strength, high brightness and low cost.
CN109554101AActive Publication Date: 2019-04-02TANGSHAN DONGFANG YUHONG WATERPROOF TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TANGSHAN DONGFANG YUHONG WATERPROOF TECH CO LTD
Publication Date
2019-04-02

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Abstract

The invention discloses a polyurethane waterproof coating material, which comprises a component A and a component B, wherein the component A comprises: isocyanate, hydroxyl-terminated polyether diol having a molecular weight of 2000-5000, hydroxyl-terminated polyether diol having a molecular weight of 200-1000, a plasticizer and a silane coupling agent, and the component B comprises: hydroxyl-terminated polyether polyol, a plasticizer, an organic solvent, a pigment filler, a catalyst, a curing agent, a high performance auxiliary agent and an acidic aid. According to the present invention, thepolyurethane waterproof material has advantages of high tensile strength, high elongation at break, high right angle tear strength, high bond strength, moisture heat resistance, aging resistance, chemical corrosion resistance, low cost, dense film sheet, high brightness, reliable construction and the like, has all the performances higher than the standards of TB / T 2965-2011 Technical specificationfor waterproof layer of railway concrete bridge, and is especially suitable for railway bridges.
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Description

Technical field

[0001] The invention belongs to the field of building waterproof coatings, and more specifically, relates to a polyurethane waterproof coating. Background technique

[0002] Polyurethane waterproof coating is a waterproof material for on-site construction using polyurethane resin as the main material. Developed to overcome the shortcomings of traditional asphalt waterproof coatings and waterproof membranes. It is a chemically reactive waterproof coating. After curing, it is a rubber-like high-elastic coating film. The coating film is seamless as a whole. It has strong adaptability to the deformation and deformation of the base cracks and is convenient for construction and maintenance. Polyurethane waterproof coating is an amorphous viscous liquid substance before curing. It can be applied to any complex base surface layer. Because of its excellent comprehensive performance, it is called "liquid coil" by the industry and is widely used worldwide. After more than ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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