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A technology of nitrile rubber and sheath, which is applied in other chemical processes, chemical instruments and methods, etc., can solve the problems of low oilfield environmental performance index, roughness, rough nitrile rubber sheath, etc., and achieve performance improvement and reduction The effect of dosage and adaptability improvement
Inactive Publication Date: 2011-05-25
山东宝世达电缆有限公司
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Problems solved by technology
In addition, from the appearance point of view, the nitrile rubber sheath is rough and not smooth, and its various performance indicators of oil field environment resistance are low
Method used
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Embodiment 1
[0013] The ratio of parts by weight of the nitrile rubber sheath is: nitrile rubber: 20, calcined clay: 2, talcum powder: 6, chlorinated paraffin: 1, phthalocyanine blue 0.01, zinc oxide: 0.5, anti-aging agent RD: 0.1, antioxidant H: 0.1, stearic acid: 0.2, coumarone: 0.5, silica: 8, DOP softener: 1, accelerator DM: 0.5, accelerator TMTD: 0.2, sulfur: 0.1.
Embodiment 2
[0015] The ratio of parts by weight of the nitrile rubber sheath is: nitrile rubber: 30, calcined clay: 8, talcum powder: 10, chlorinated paraffin: 4, phthalocyanine blue 0.04, zinc oxide: 0.5, anti-aging agent RD: 0.5, antioxidant H: 0.4, stearic acid: 0.6, coumarone: 2, silica: 12, DOP softener: 4, accelerator DM: 1.2, accelerator TMTD: 0.8, sulfur: 0.3.
Embodiment 3
[0017] The ratio of parts by weight of the nitrile rubber sheath is: nitrile rubber: 26.18, calcined clay: 6, talcum powder: 8, chlorinated paraffin: 2, phthalocyanine blue 0.026, zinc oxide: 1.61, antioxidant RD: 0.335, antioxidant H: 0.235, stearic acid: 0.405, coumarone: 1.345, silica: 10.74, DOP softener: 2.2, accelerator DM: 0.84, accelerator TMTD: 0.535, sulfur: 0.2.
[0018] By gradually increasing the dosage of acid-resistant, alkali-resistant, oil-resistant, temperature-resistant, wear-resistant, flame-retardant and other filling reinforcing agents, softening flame retardants, etc., a large number of tests have been carried out on the flat vulcanizer, and the product performance after production has been tested. , the physical and mechanical properties such as tensile strength and elongation at break have kept the original data unchanged, and on the basis of this performance, the acid resistance, alkali resistance, oil resistance, temperature resistance, wear resistanc...
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Abstract
The invention belongs to the field of sealing materials, in particular to a nitrile rubber protective sleeve, which comprises the following ingredients in parts by weight: 20 to 30 parts of nitrile rubber, 2 to 8 parts of calcined clay, 6 to 10 parts of talcum powder, 1 to 4 parts of chlorcosane, 0.01 to 0.04 part of phthalocyanine blue, 0.5 to 3 parts of zinc oxide, 0.1 to 0.5 part of age inhibitors RD, 0.1 to 0.4 part of age inhibitors H, 0.2 to 0.6 part of stearic acid, 0.5 to 2 parts of coumarone, 8 to 12 parts of white carbon black, 1 to 4 parts of di octyl phthalate (DOP) softening agents, 0.5 to 1.2 parts of accelerators DM, 0.2 to 0.8 part of accelerator tetramethylthiuram disulfide (TMTD) and 0.1 to 0.3 part of sulphur. The nitrile rubber protective sleeve adopting the recipe has the advantages that the physical and mechanical performance of the nitrile rubber protective sleeve are not reduced, but the cost is greatly reduced, the surface smoothness of products and each applicability of an oil well are also greatly improved, and the properties such as acid resistance, base resistance, oil resistance, temperature resistance, wear resistance, flame retardance and the like of the products are also greatly improved.
Description
technical field [0001] The invention belongs to the field of sealing materials, in particular to a nitrile rubber sheath. Background technique [0002] The rubber content of the nitrile rubber sheath produced by the existing formula is generally about 52%. Since the price of the rubber is more expensive, the higher the rubber content of the sheath, the higher the cost. The commercially available rubber sheath Due to its higher rubber content, the price is also more expensive. If you want to reduce the cost of the nitrile rubber sheath, you need to reduce its rubber content, and if you directly reduce the rubber content, it will inevitably affect the various properties of the nitrile rubber sheath, for example, due to the reduction of the rubber content resulting in Its physical and mechanical properties are reduced, and the properties of the product such as acid resistance, alkali resistance, oil resistance, temperature resistance, wear resistance, and flame retardancy wil...
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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Application Information
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