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High-acrylonitrile NBR/PVC (nitrile-butadiene rubber/polyvinyl chloride) oil-resistant ozone-resistant rubber material and preparation method thereof
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A rubber material, acrylonitrile technology, applied in the field of rubber materials and its preparation, can solve the problems of little research on NBR/PVC
Inactive Publication Date: 2014-01-01
SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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Problems solved by technology
Although there are certain studies on the preparation of NBR and PVC blends, there are very few studies on NBR / PVC with high acrylonitrile content, and the comprehensive research on the oil resistance and ozone resistance of NBR / PVC with high acrylonitrile content is even rarer. Therefore, it is very meaningful to study the oil resistance and ozone resistance of NBR / PVC with high acrylonitrile content.
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Embodiment 1
[0023] The NBR / PVC oil-resistant and ozone-resistant rubber material with high acrylonitrile content described in this embodiment is composed of NBR, PVC, filling reinforcing agent, plasticizer, anti-aging agent, vulcanizing agent, stabilizer and other rubber processing aids .
[0024] This example includes 70 parts of NBR, 30 parts of PVC, 2.0 parts of stabilizer, 20 parts of DOP, 25 parts of 3G8, 30 parts of N550, 30 parts of N774, 1.5 parts of 4010NA, 1.5 parts of RD, 2.5 parts of sulfur, 1.5 parts of CZ, 2.0 parts Part paraffin, 5.0 parts zincoxide, 1.5 parts stearic acid.
[0025] The preparation method of the NBR / PVC oil-resistant and ozone-resistant rubber material with high acrylonitrile content of the present invention is a mechanical blending method, and the specific steps are as follows:
[0026] (1) NBR / PVC blending: Pre-plasticize PVC, plasticizers, stabilizers, etc. in a high-speed mixing mixer, masticate evenly in a double-roller open mill (130~140°C), and...
Embodiment 2
[0033] The composition of this example is basically the same as that of Example 1, except that 1.5 parts of sulfur, 1.2 parts of CZ, and 0.3 parts of TMTD are used instead of 2.5 parts of sulfur and 1.5 parts of CZ.
[0034] The mechanical performance test results of the NBR / PVC oil-resistant and ozone-resistant rubber material with high acrylonitrile content obtained in this example are shown in Table 1, the oil resistance test results are shown in Table 3, and the ozone aging resistance results are shown in Table 5.
Embodiment 3
[0036] The composition of this example is basically the same as that of Example 1, except that 0.5 parts of sulfur, 1.0 part of CZ, and 0.5 parts of TMTD are used instead of 2.5 parts of sulfur and 1.5 parts of CZ.
[0037]The mechanical performance test results of the NBR / PVC oil-resistant and ozone-resistant rubber material with high acrylonitrile content obtained in this example are shown in Table 1, the oil resistance test results are shown in Table 3, and the ozone aging resistance results are shown in Table 5.
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Abstract
The invention relates to a rubber material and a preparation method thereof, particularly a high-acrylonitrile NBR / PVC (nitrile-butadiene rubber / polyvinyl chloride) oil-resistant ozone-resistant rubber material and a preparation method thereof. The material comprises the following components in parts by mass: 70 parts of NBR, 30 parts of PVC, 5 parts of ZnO, 1.5 parts of stearic acid, 40-50 parts of plasticizer, 50-80 parts of filler reinforcer, 0.5-2 parts of vulcanizing agent, 1.5-3.5 parts of accelerator, 3.0 parts of anti-aging agent, 2 parts of stabilizer and 2 parts of paraffin. The universal synthetic resin PVC has excellent ozoneaging resistance and chemical corrosion resistance; the composite material blended from the NBR and PVC integrates the property advantages of the NBR and PVC, and overcomes the defects of the NBR and PVC, thereby becoming an important new rubber / plastic composite material. The high-acrylonitrile-content NBR and the PVC are blended, so that the blended rubber has favorable oil resistance and ozone resistance.
Description
Technical field [0001] The invention relates to a rubber material and a preparation method thereof, in particular to a high acrylonitrile NBR / PVC oil-resistant and ozone-resistant rubber material and a preparation method thereof. Background technique [0002] The main material usually used to make oil-resistant rubber products is mostly nitrile rubber (NBR). However, NBR is prone to cracking in weather and aging environments, making the product lose its use value. Therefore, people hope to obtain an oil-resistant and ozone-resistant product. Good rubber products. And continue to explore various types of materials modified NBR in order to achieve good performance. [0003] General-purpose synthetic resinpolyvinyl chloride (PVC) has excellent flame retardancy, self-extinguishing properties, ozone aging resistance, chemical corrosion resistance, electrical insulation, chemical stability and thermoplasticity. NBR and PVC are both polar polymers. Their solubility parameter...
Claims
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