Production method of polyurethane rubber adhesive
A polyurethane rubber, production method technology, applied in the direction of polyurea/polyurethane adhesives, adhesives, adhesive types, etc. Good low temperature performance, good fatigue resistance and good electrical insulation
Inactive Publication Date: 2011-10-05
王平议
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AI Technical Summary
Problems solved by technology
Its disadvantages are: sensitive to water, easy to produce bubbles in the glue layer, poor heat resistance (60-80°C), poor water resistance, poor heat and humidity resistance, poor resistance to strong acid and strong alkali
Polyurethane rubber adhesives are widely used, and can be used for bonding metal, rubber, plastic, fiber, wood, ceramics, glass, leather, etc. to themselves or between each other, but the structure of the components has a great influence on the performance. The process of polyester Poor resistance, but high strength; and polyether low viscosity, but easy construction, elastic
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment
[0006] Step 1: First add 66 parts of trichlorethylene to the chemical reaction kettle, increase the temperature by 55°C, start the mixer, slowly add 18 parts of polyurethane rubber particles, keep stirring until completely dissolved.
[0007] The second step: add 3 parts of N,N'-m-phenylene bismaleimide, and keep stirring for 1 hour.
[0008] Step 3: Add 2 parts of sodium carbonate, 4 parts of modified rosin resin, and 4 parts of carbon black in sequence, and continue to stir and react for 1.5 hours.
[0009] Step 4: Cool down to normal temperature, add 2 parts of silicone coupling agent and 1 part of p-phenylenediamine, stir and react for 0.5 hours to obtain polyurethane rubber adhesive.
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The invention discloses a production method of a polyurethane rubber adhesive, which is used for self-bonding or mutual bonding of metal, rubber, plastic, fiber, timber, ceramic, glass and leather, etc., and can be solidified at room temperature or by heating. The agent has strong bonding force, high elasticity, impact resistance, vibration resistance, good low temperature resistance (bonding intensity at a low temperature is 2-3 times higher than that at a room temperature), oil resistance, ozone resistance, wear resistance, good tightness, good electric insulativity, good manufacturability, good fatigue resistance, good infiltration, and can be solidified at room temperature or at high temperature. Raw materials for producing the agent comprise polyurethane rubber particles, trichloro ethylene, N, N<,>-m-phenylenedimaleimide, sodium carbonate, modified abietic resin, carbon black, organosilicon coupling agent and p-phenylenediamine.
Description
Technical field: [0001] The product of the invention belongs to the field of chemical industry. Background technique: [0002] Polyurethane rubber is polymerized from polyester (or polyether) and diisocyanate compounds. It has the highest wear resistance among all kinds of rubber, and it is characterized by good strength, high elasticity, good oil resistance, ozone resistance, aging resistance, and air tightness. The disadvantage is that it has poor moisture resistance, poor water and alkali resistance, and poor solvent resistance. It is mainly used to make tires, benzene-resistant parts, gaskets and shock-proof products, etc. It can also be used in occasions that require high wear resistance, high strength, and oil resistance. Another use is to make adhesives. Polyurethane rubber adhesives exhibit a high degree of activity and polarity when used. Its advantages are: strong adhesion, high elasticity, impact resistance, vibration resistance, good low temperature resistance...
Claims
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IPC IPC(8): C09J175/04
Inventor 王平议
Owner 王平议