A kind of plastic machine rubber roller and plastic machine rubber roller material
A technology of over-molding machine and rubber material, applied in the direction of rubber layered products, transportation and packaging, wrapping objects, etc., can solve the problems such as the failure of the over-molding machine to seal well, the deterioration of the plastic sealing effect, and the change of contact pressure, so as to avoid contact pressure. The effect of large changes, improved service life, and improved wear resistance
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Embodiment 1
[0020] Example 1 Laminating machine cots
[0021] Such as figure 1 As shown, the present invention provides a plastic machine rubber roller, which comprises a metal roller core 1, a foamed rubber layer 2 made of a foamed rubber material, and a non-foamed rubber layer made of a non-foamed rubber material 3. The foamed rubber layer 2 is arranged outside the metal roller core 1, and the non-foamed rubber layer 3 is arranged outside the foamed rubber layer 2; the difference between the foamed rubber layer and the non-foamed rubber layer The thickness ratio is 1:2.
[0022] The rubber roller of the plastic laminating machine described in this embodiment uses the foamed rubber layer made of foamed rubber material as the "backing layer", and then uses the non-foamed rubber layer made of non-foamed rubber material to "cover", A composite material layer with a double-layer structure is formed, which can effectively avoid large volume changes when heated, and avoid large changes in th...
Embodiment 2
[0023] Embodiment 2 Preparation of rubber roller material for plastic machine
[0024] The rubber roller material of the plastic machine is non-foaming rubber material
[0025] The weight ratio of the non-foaming rubber material is: 225 parts of methyl vinyl silicone raw rubber; 112.5 parts of precipitated silica; 3.5 parts of hydroxyl silicone oil; 1.2 parts of hydrogen-containing silicone oil; 6.0 parts of dimethyl silicone oil; 3.5 parts of dimethyldiethoxysilane; 2.5 parts of internal release agent; 100 parts of silicon micropowder; 2.0 parts of 2,5-dimethyl-2,5-di-tert-butylperoxyhexane.
[0026] The preparation method of the non-foaming rubber material: methyl vinyl silicone raw rubber, precipitated silica, hydroxyl silicone oil, hydrogen-containing silicone oil, dimethyl silicone oil, dimethyldiethoxysilane, internal mold release agent , microsilica powder and 2,5-dimethyl-2,5-di-tert-butylperoxyhexane are placed in a double-roll mill and mixed evenly to obtain the non...
Embodiment 3
[0028] Embodiment 3 Preparation of rubber roller material for plastic machine
[0029] The rubber roller material of the plastic machine is non-foaming rubber material
[0030] The weight ratio of the non-foaming rubber material is: 225 parts of methyl vinyl silicone raw rubber; 112.5 parts of precipitated silica; 3.5 parts of hydroxyl silicone oil; 1.2 parts of hydrogen-containing silicone oil; 6.0 parts of dimethyl silicone oil; 3.5 parts of dimethyldiethoxysilane; 2.5 parts of internal mold release agent; 100 parts of modified silica powder; 2.0 parts of 2,5-dimethyl-2,5-di-tert-butylperoxyhexane;
[0031] The modified silicon micropowder is prepared by the following method: Soak the silicon micropowder in an aqueous solution containing polyethyleneimine with a molecular weight of 70,000 and polydimethyldiallyl ammonium chloride with a molecular weight of 300,000 for 12 hours. Dry to obtain the modified silica powder; the mass fraction of polyethyleneimine in the aqueous s...
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