Rubber containing copper tailings as well as preparation method and application of rubber
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A technology of copper tailings and rubber, applied in the field of rubber materials, can solve problems such as insufficient compatibility, achieve the effects of improving various performances, reducing experimental procedures, and easy mixing
Active Publication Date: 2022-03-18
CHINESE ACAD OF GEOLOGICAL SCI +1
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[0005]
The invention provides a rubber containing copper tailings and its preparation method and application to solve the technical problem of insufficient compatibility of copper tailings in rubber products at present
Method used
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Embodiment 1-3
[0050] A kind of rubber containing copper tailings, including natural rubber, 10phr copper tailings (phr represents the number of grams added per 100g of natural rubber base material, that is, the mass ratio of copper tailings to natural rubber is 1:10), oxidation Zinc, antioxidant 4010NA, stearic acid, silane coupling agent Si69, accelerator D, accelerator CZ and sulfur, the specific reagent content and process parameters of each step are as shown in Table 2, including the following preparation steps:
[0051] (1) Tailings pretreatment: After drying the copper tailings, first crush them with a jaw crusher, and then grind them with a planetary ball mill to grind the copper tailings into powder;
[0052] (2) Rubber internal mixing process: set the initial temperature of the internal mixer to 80°C-85°C, and the rotational speed to 25r / min, add masticated natural rubber, increase the rotational speed to 40r / min, and add after mixing for 30s Zinc oxide, anti-aging agent 4010NA, st...
Embodiment 4
[0059] A kind of rubber containing copper tailings, each step and the reagents used in each step, process parameters are all the same as embodiment 3, the difference is that the addition of copper tailings is 30phr (the quality of copper tailings and natural rubber The ratio is 3:10), the mass ratio of copper tailings and Si69 is 10:1, specifically, the amount of copper tailings added is 30g, and the amount of Si69 added is 3g.
Embodiment 5
[0061] A kind of rubber containing copper tailings, each step and the reagents used in each step, process parameters are all the same as embodiment 3, the difference is that the addition of copper tailings is 50phr (the quality of copper tailings and natural rubber The ratio is 5:10), the mass ratio of copper tailings to Si69 is 10:1, specifically, the amount of copper tailings added is 50g, and the amount of Si69 added is 5g.
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Abstract
The invention discloses rubber containing copper tailings as well as a preparation method and application of the rubber, and relates to the field of rubber materials. The rubber is prepared through the following steps that natural rubber, zinc oxide, an anti-aging agent and stearic acid are mixed, then copper tailings and Si69 are added in two times for mixing, and then rubber discharging is conducted; mixing a product obtained after internal mixing with an accelerant and sulfur, carrying out open milling process treatment, standing, and then carrying out a vulcanization process, so as to obtain the rubber. Interface bonding is generated between the copper tailings and the rubber through Si69, the bridge connection effect is achieved, the compatibility of the copper tailings and the rubber is improved, agglomeration is reduced, on the premise that the filling amount of the copper tailings is increased, all properties of the rubber are improved, the production cost of the raw materials is reduced, and the mechanical strength and wear resistance of the rubber are improved; and the temperature rise value of compression heat generation is relatively low, so that the performance requirements when the material is applied to specific products can be met.
Description
technical field [0001] The invention relates to the field of rubber materials, in particular to a copper tailings-containing rubber and a preparation method and application thereof. Background technique [0002] Due to the rapid development of mining activities, the discharge of tailings has increased year by year, which not only pollutes the environment, but also directly affects the safety and environmental protection of tailings ponds during flood seasons, causing serious environmental pollution and resource utilization problems. It is understood that since the Tonglushan mine tailings pond was put into use in 1970, a total of 7×10 tailings have been piled up. 6 m 3 (2005), occupying a large amount of land and endangering the environment. [0003] At present, improving the comprehensive utilization rate of mineral resources, material utilization and harmless treatment of tailings resources have become the inevitable trend of comprehensive utilization of tailings at home...
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