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Flame-retardant and oil-resistant marine rubber material and molding preparation method thereof
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A rubber material and marine technology, applied in the field of rubber products, can solve the problems of poor water resistance and oil resistance, and the abandonment of highly toxic lead-containing compounds, etc., to achieve strong aging resistance, good UV and ozone resistance, and excellent The effect of oil resistance
Active Publication Date: 2015-06-03
JIANGYIN HAIDA RUBBER & PLASTIC GROUP
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[0004] CSM has a variety of cross-linking methods, and the vulcanizate with the best comprehensive performance can be obtained by using the lead oxide vulcanization system. Jin Wanxiang studied in detail in "The Effect of the Combination of the Lead Oxide Vulcanization System on the Properties of Chlorosulfonated Polyethylene Rubber" The application of lead oxide in CSM is limited, but lead-containing compounds will be increasingly abandoned due to their severe toxicity
However, the water resistance and oil resistance of the magnesium oxide and pentaerythritol crosslinking system are relatively poor.
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Embodiment 1
[0038]The components and parts by mass are: 3695 granular CSM produced by Lianyungang Jintaida Company, 60 parts; nitrile rubber N230S produced by Japan JSR Company, 40 parts; carbon black N550, 25 parts; chlorinated paraffin 50 parts , 30 parts; decabromodiphenyl ether, 20 parts; antimony trioxide, 20 parts; barium sulfate, 10 parts; zinc oxide, 1.5 parts; stearic acid, 1 part; antioxidant RD, 1.5 parts; reactive antiaging anti-aging agent NBC, 0.8 parts; microcrystalline wax, 2 parts; ultraviolet absorber, 2 parts; processing aids RL-20 and RF-70 produced by Guangzhou Jinchangsheng Technology Co., Ltd. Agent CZ, 0.4 parts; Accelerator TMTD, 0.2 parts; Sulfur, 0.3 parts; HVA-2, 2 parts.
[0039] The preparation technology of embodiment 1 is: on 16 cun open type rubber mixing machines, granular chlorosulfonated polyethylene rubber and acrylonitrile-butadiene rubber are respectively blended to uniformity after 10 times of wrapping with minimum roll spacing; Add materials after...
Embodiment 2
[0041] Each component and mass parts are: CSM40 produced by domestic Jilin Chemical Company, 80 parts; Nitrile rubber N220S produced by Japan JSR Company, 20 parts; Carbon black SP5000, 30 parts; Chlorinated paraffin 50 (liquid, plasticized agent), 30 parts; chlorinated paraffin wax 70 (solid, flame retardant), 30 parts; clay, 10 parts; antimony trioxide, 15 parts; zinc oxide, 1 part; stearic acid, 1 part; antioxidant RD , 1 part; reactive anti-aging agent MC, 1 part; anti-aging agent AW, 1 part; microcrystalline wax, 1 part; ultraviolet absorber, 2 parts; processing aid RL-20 and RF-70 each 1.5 parts; Accelerator CZ, 0.5 parts; Accelerator DPTT, 0.4 parts; Sulfur, 0.3 parts; HVA-2, 2.5 parts.
[0042] The preparation process of Example 2 is as follows: first pass CSM and NBR 10 times with the minimum roll distance on a 16-inch open rubber mixing machine; then raw rubber, carbon black, plasticizer, protective agent, etc. Add it to the closed rubber mixer and mix evenly, disch...
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Abstract
The invention relates to a flame-retardant and oil-resistant marine rubber material which is composed of a raw rubber substrate, an activator, a plasticizer, carbon black, a flame retardant, a filler, a vulcanizer, a vulcanization accelerator, a protectant and a processing aid, wherein the raw rubber substrate is a comixture of CSM (Chlorosulfonated Polyethylene) and NBR (Nitrile Butadiene Rubber); and the vulcanizer is a mixture of HVA-2 and sulfur. During the molding process, a thinning-passing treatment is respectively conducted on the granular CSM and the granular NBR; then, all the components are sequentially added into the CSM and the NBR according to proportion by utilizing an open miller or an internal mixer so as to be evenly mixed and subjected to standing; a rubber compound is added into a single screw extruder to extrude the rubber material continuously; and the rubber material is molded in hot air of 180 to 220 DEG C or in a micro wave vulcanizing manner. The prepared rubber material is applied to rubber products on oil product transport marines, and has an excellent oil-resistant performance and a good flame-retardant performance.
Description
technical field [0001] The invention relates to a rubber product used on an oil transport ship, in particular to a flame-retardant and oil-resistant marine rubber material and a molding preparation method thereof. Background technique [0002] Chlorosulfonated polyethylene rubber (CSM) is based on polyethylene, introduced with a mass fraction of 23-47% chlorine and a small amount of chlorosulfonyl (1-1.7%). Due to the introduction of chlorine, the crystallinity of CSM macromolecules is reduced and it has certain elasticity and flame retardancy. At the same time, the polarity of chlorine gives CSM better oil resistance; chlorosulfonyl (-SClO 2 ) is a reactive functional group, the introduction of which endows CSM with active crosslinking points. Due to the saturation of the macromolecular main chain of CSM, compared with other diene rubbers, it has excellent weather resistance, heat resistance and ozone resistance. It is mainly used in the manufacture of oil-resistant hoses,...
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