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EPDM rubber/nitrile rubber/organic montmorillonite oil-resistant material and preparation method thereof
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A technology of EPDM and organic montmorillonite, applied in the field of polymer materials, can solve problems such as intolerance, poor compatibility, and decreased mechanical properties of blends
Active Publication Date: 2016-01-27
SHENZHEN YATAIXING IND
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But it also has some disadvantages that limit the use of EPDM in a wider range of fields. It is not resistant to non-polar oils and solvents, such as gasoline, benzene, etc., so EPDM cannot be used as the basis in some environments that require oil resistance. materials, for which it is necessary to modify the existing shortcomings of EPDM to increase its application field
[0003] Nitrile rubber (NBR) has excellent oil resistance and wear resistance, so the oil resistance of EPDM can be improved after adding NBR, but due to the great difference in polarity between NBR and EPDM, the compatibility between NBR and EPDM is very poor, making it The mechanical properties of the blend rubber decreased
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preparation example Construction
[0030] Correspondingly, the embodiment of the present invention also provides the preparation method of the above-mentioned EPDM rubber / nitrile rubber / organic montmorillonite oil-resistant material, and its technological process is as follows figure 1 shown. The method comprises the steps of:
[0031] S01. Weigh the formula components: Weigh each component according to the above-mentioned EPDM rubber / nitrile rubber / organic montmorillonite oil-resistant material formula;
[0032] S02. Preparation of blended rubber: masticating the EPDM rubber and nitrile rubber weighed in step S01 respectively, and then blending the EPDM rubber, nitrile rubber and organic montmorillonite after mastication Plasticizing to prepare blended rubber;
[0033] S03. Material refining and thinning treatment: add the weighed EPDM rubber / nitrile rubber / organic montmorillonite oil-resistant material formula to the blended rubber in step S02, and perform rubber tapping and refining , Thin pass treatment,...
Embodiment 1
[0044] EPDM rubber / nitrile rubber / organic montmorillonite oil-resistant material and a preparation method thereof. Wherein, the formula of the EPDM rubber / nitrile rubber / organic montmorillonite oil-resistant material is as follows:
[0045]
[0046]
[0047] Wherein, the mass ratio of sulfur and DCP in the vulcanizing agent is 3:2, and the active agent preferably has a mass ratio of ZnO and octadecanoic acid of 4:2.
[0048] The preparation method of the EPDM rubber / nitrile rubber / organic montmorillonite oil-resistant material comprises the following steps:
[0049] 1) Preparation of blended rubber: firstly plasticize the weighed NBR and EPDM on the open mill, then mix the NBR and EPDM on the open mill, and finally mix the blended rubber and organic montmorillonite on the open mill;
[0050] 2) Material smelting and thinning treatment: mix the blended rubber prepared above into the compounding agent on the open mill, first plasticize the sample evenly and cover the roll...
Embodiment 2
[0053] EPDM rubber / nitrile rubber / organic montmorillonite oil-resistant material and a preparation method thereof. Wherein, the formula of the EPDM rubber / nitrile rubber / organic montmorillonite oil-resistant material is as follows:
[0054]
[0055] Wherein, the mass ratio of sulfur and DCP in the vulcanizing agent is 3:2, and the active agent preferably has a mass ratio of ZnO and octadecanoic acid of 4:2.
[0056] The preparation method of the EPDM rubber / nitrile rubber / organic montmorillonite oil-resistant material comprises the following steps:
[0057] 1) Preparation of blended rubber: as in step (1) of Example 1;
[0058] 2) Material refining and thinning treatment: as in step (2) of Example 1;
[0059] 3) Vulcanization treatment of materials: Vulcanize the samples extruded on the rollers on a flat vulcanizer at a pressure of 15 MPa and a temperature of 160°C for 0.5 hours to prepare EPDM / NBR / organic montmorillonite oil-resistant materials.
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Abstract
The invention discloses an ethylene-propylene-dienemonomer / nitrile rubber / organic montmorillonite oil resisting material and a preparation method thereof. The ethylene-propylene-dienemonomer / nitrile rubber / organic montmorillonite oil resisting material comprises the following components in parts by weight: 60-77 parts of ethylene-propylene-dienemonomer, 15-35 parts of nitrile rubber, 3-5 parts of organic montmorillonite, 4-6 parts of organic montmorillonite, 1-2 parts of accelerant, 5-7 parats of active agent and 0.8-1.5 parts of anti-aging agent. According to the ethylene-propylene-diene monomer / nitrile rubber / organic montmorillonite oil resisting material, the ethylene-propylene-diene monomer is modified by the nitrile rubber and the organic montmorillonite, and the nitrile rubber has excellent oil resistance and abrasive resistance. According to the preparation method of the ethylene-propylene-diene monomer / nitrile rubber / organic montmorillonite oil resisting material, the components only need to be mixed according to a formula and then are vulcanized to obtain the ethylene-propylene-diene monomer / nitrile rubber / organic montmorillonite oil resisting material, the preparation method has the characteristics that the process is simple, the conditions are easy to control, the cost is low, and the requirements on equipment are low, and the ethylene-propylene-diene monomer / nitrile rubber / organic montmorillonite oil resisting material is suitable for industrial production.
Description
technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to an EPDM rubber / nitrile rubber / organic montmorillonite oil-resistant material and a preparation method thereof. Background technique [0002] EPDM has excellent heat resistance, ozone resistance, aging resistance and electrical insulation, and is easy to blend with polyolefin plastics. It has been widely used in many fields such as auto parts, waterproof membranes, wires and cables, and plastic modification. Due to its wide range of uses, it accounts for about 7% of the world's total synthetic rubber consumption, and its production and consumption ranks third in synthetic rubber. But it also has some disadvantages that limit the use of EPDM in a wider range of fields. It is not resistant to non-polar oils and solvents, such as gasoline, benzene, etc., so EPDM cannot be used as the basis in some environments that require oil resistance. Materials, for this re...
Claims
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Application Information
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