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Acrylonitrile-butadiene rubber powder and preparation method thereof
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A technology for nitrile-butadiene rubber and powder is applied in the field of nitrile-butadiene rubber powder and its preparation, and achieves the effects of good compatibility, remarkable benefit and improved elasticity
Inactive Publication Date: 2016-05-25
孙宝林
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[0004] The purpose of the present invention is to overcome the defective that existing nitrilerubber material is difficult to be processed into powder, provides a kind of nitrile rubber powder, and fineness can reach 60-200 order, is better than the existing rubber pulverizing particle diameter abroad, makes nitrile butadiene rubber powder Rubber can be more closely cross-linked with plastics to improve the material structure, thereby improving the physical and chemical properties of plastic materials, mainly manifested in increasing the elasticity, toughness, and weather resistance of plastics.
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[0030] Wherein, the nitrile rubber is the nitrile rubber commonly used as the elastic body of plastics in this field, such as NBR1704, NBR2707, NBR3604, NBR2907, NBR3305, NBR4005, XNBR1753, XNBR2752, XNBR3351, NBR1504, NBR2007, NBR3606, NBR2717 , one or more of NBR2737, NBR2624, NBR2625, NBR2626, NBR2741, NBR2742 and NBR2743.
[0043] The difference between this embodiment and Example 1 is that the component distribution ratio of the nitrile rubber powder is different, and the components of the nitrile rubber powder provided by the present embodiment include in terms of mass percentage: 50% of nitrile rubber, 5% zincoxide %, 1% of rubber accelerator, 20% of auxiliary dispersing filler, 20% of grease, 1% of anti-aging agent, 1.5% of lubricant and 1.5% of solid surfactant.
[0044] After testing, the particle size and fineness of the prepared nitrile rubber powder before sieving are 60-200 mesh, the color is beige, the hand feels elastic, and it forms agglomerates after being grasped by hand, but it can be removed by palm or vibrating sieve. Knead the powder.
Embodiment 3
[0046] The difference between this embodiment and Example 1 is that the component distribution ratio of the nitrile rubber powder is different, and the components of the nitrile rubber powder provided by the present embodiment include in terms of mass percentage: 55% of nitrile rubber, 4% of zinc oxide %, 2% of rubber accelerator, 25% of auxiliary dispersing filler, 10.5% of oily substance, 1.5% of anti-aging agent, 1% of lubricant and 1% of solid surfactant.
[0047] After testing, the particle size and fineness of the prepared nitrile rubber powder before sieving are 60-200 mesh, the color is beige, the hand feels elastic, and it forms agglomerates after being grasped by hand, but it can be removed by palm or vibrating sieve. Knead the powder.
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Abstract
The invention provides acrylonitrile-butadiene rubber powder. The acrylonitrile-butadiene rubber powder comprises the following components: 50-80% of acrylonitrile-butadiene rubber, 2-5% of zincoxide, 1-3% of a rubber promoter, 8-30% of an auxiliary dispersion filling material, 6-20% of a grease substance, 0.5-2% of an antioxidant, 0.2-1.5% of a lubricant, and 0.2-1.5% of a solid surfactant. The fineness of the acrylonitrile-butadiene rubber powder is 60-200 meshes, the acrylonitrile-butadiene rubber powder has the characteristics of small granularity, good fluidity, good compatibility and good processability, the acrylonitrile-butadiene rubber powder is mixed with a plastic material, and is directly introduced into an extruder, mixing is not required, the acrylonitrile-butadiene rubber powder has the advantages of convenient usage, time saving, energy saving, and obvious benefit, acrylonitrile-butadiene rubber and plastic are crosslinked and combined in a closer mode, a material structure is improved, so that physical and chemical performances of the plastic material can be increased, and the elasticity, toughness and weatherability of the plastic can be obviously increased.
Description
technical field [0001] The invention belongs to the field of polymer materials, in particular to a nitrile rubber powder and a preparation method thereof. Background technique [0002] With the continuous expansion of plastic materials in the field of industrial applications, the technical requirements for plastic materials are also continuously improved. The technology that is directly used at present is to modify the properties of plastic materials. At present, the main technology for modification is to use thermoplastic elastomers (such as: TPR) as the elastic body. The main method is granulation technology, which uses thermoplastic elastomers to change the plastic structure to enhance the willfulness, elasticity, and flexibility of plastics. weather resistance etc. Increase the expansion of plastic application fields. However, these materials can only improve and solve the performance of plastics to a certain extent, and because of the poor weather resistance of therm...
Claims
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