Polyurethane composite material and preparation method thereof
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A polyurethane composite material and material technology, applied in the field of concrete and its preparation, to achieve the effects of low heat of reaction, lower reaction temperature, and uniform heat dissipation
Inactive Publication Date: 2013-03-27
ANHUI JIATAI COAL MINING TECH
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[0003] The invention object of the present application is to overcome the shortcoming of existing polyurea elastomer, and provide a kind of polyurethane combination material and preparation method thereof
Method used
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Embodiment 1
[0024] The polyurethane compound material of the present invention, it is made up of A group material and B group material, wherein:
[0025] The composition of group A materials by mass parts is as follows:
[0026]
[0027] The components of group B materials by mass ratio are as follows:
[0028] 10-70 parts of isocyanate
[0029] Stone powder 70-10 parts
[0030] Mix the above-mentioned group A materials of equal quality with the above-mentioned group B materials of equal quality to obtain the polyurethane composite material of the present invention.
[0031] The hydroxyl value of polyether is between 1 and 1000. It is a mixture of one or several polyethers; such as the polyether produced by Jiangsu Zhongshan Chemical Co., Ltd., its trade name can be N-403, ZS-4110, etc. One or a mixture of several of them. Isocyanate is any kind of polyurethane black material, such as MDI M20S, 5005, 44V20, PM-200, M200 and so on. The stone powder mesh number should be above 20 me...
Embodiment 2
[0039] The composition of group A materials by mass parts is as follows:
[0040]
[0041] The components of group B materials by mass ratio are as follows:
[0042] 10-70 parts of isocyanate
[0043] Stone powder 70-10 parts
[0044] Conductive graphite 1-30 parts
[0045] Mix the above-mentioned group A materials of equal quality with the above-mentioned group B materials of equal quality to obtain the polyurethane composite material of the present invention.
[0046] The hydroxyl value of polyether is between 1 and 1000. It is a mixture of one or several polyethers; such as the polyether produced by Jiangsu Zhongshan Chemical Co., Ltd., its trade name can be N-403, ZS-4110, etc. One or a mixture of several of them. Isocyanate is any kind of polyurethane black material, such as MDI M20S, 5005, 44V20, PM-200, M200 and so on. The stone powder mesh number should be above 20 mesh. The mesh number of conductive graphite should be above 80 mesh.
[0047] The method for p...
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Abstract
The invention relates to a polyurethane composite material and a preparation method thereof. The polyurethane composite material is formed by a group A material and a group B material, wherein the group A material contains the following components in parts by mass; 10-70 parts of polyether, 5-10 parts of triethylene diamine, 1-10 parts of fire retardant DMMP (Dimethyl Methyl Phosphonate) and 70-10 parts of stone powder; the group B material contains the following components in parts by mass; 10-90 parts of isocyanate and 90-10 parts of the stone powder; the equal mass of the group A material and the equal mass of the group B material are mixed uniformly to obtain the polyurethane composite material. Compared with the existing polyurea elastic body, the polyurethane composite material has the characteristics of high inflaming retarding, low reaction heat, anti-static electricity and the like. The polyurethane composite material can replace the traditional polyurea elastic body to be widely applied to the fields of coal mine anchor-plate retaining, anchoring, rock mass reinforcing, closing, plugging, emergency, water resistance, buildings, water and electricity, tunnels, metros and the like.
Description
technical field [0001] The invention relates to concrete and a preparation method thereof, in particular to a polyurethane composite material and a preparation method thereof. Background technique [0002] Polyurea elastomer, also known as SPUA, is a new type of construction material developed abroad in the past ten years to meet the needs of environmental protection. Traditional polyurea elastomers have been applied in the reinforcement of coal and rock masses in coal mines, but the internal reaction temperature is high, which often brings safety hazards to coal mine production, and at the same time, the cost is high. Contents of the invention [0003] The purpose of the invention of this application is to overcome the shortcomings of the existing polyurea elastomers, and provide a polyurethane composite material and a preparation method thereof. [0004] In order to complete the invention purpose of the application, the application adopts the following technical solutio...
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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