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Enhanced ethylene propylene diene monomer and preparation method thereof
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A kind of EPDM rubber and enhanced technology, which is applied in the field of rubber materials, can solve the problems of poor surface adsorption capacity of modified rubber and achieve the effect of improving anti-aging ability
Pending Publication Date: 2021-02-02
TAICANG RONGNAN SEAL TECH +2
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Problems solved by technology
[0007] The technical problem to be solved by the present invention is: the problem of poor surface adsorption capacity of existing nanocrystalline cellulose modified rubber
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Embodiment 1
[0031] A kind of preparation method of reinforced EPDM composite material, concrete steps are as follows:
[0032] (1) Add NCC to deionized water through a high-speed mixer to disperse into an NCC suspension with a mass concentration of 1%, and the speed of the high-speed mixer is 5000r / min;
[0033] (2) Add betaine to the above NCC suspension, first stir at low speed (1000r / min) for 3min, then stir at medium high speed (5000r / min) for 5-10min;
[0034] (3) heating the suspension in step (2) in a water bath for 1 h, the temperature of the water bath being 60° C.;
[0036] (5) Soak the suspension in step (4) with absolute ethanol for 1d (replenish in time after the solution volatilizes, and keep the suspension soaked state);
[0037] (6) Soak the suspensio...
Embodiment 2
[0040] This embodiment provides a method for preparing a reinforced EPDM composite material, the specific steps are as follows:
[0041] (1) Add NCC to absolute ethanol and disperse into NCC suspension with a mass concentration of 3% through a high-speed mixer, and the speed of the high-speed mixer is 10000r / min;
[0042](2) Add Tween-80 to the above NCC suspension, first stir at low speed (rotating speed: 2000r / min) for 1-5min, then stir at medium and high speed (rotating speed: 10000r / min) for 5min;
[0043] (3) heating the suspension in step (2) in a water bath for 2 hours, the temperature of the water bath being 60°C;
[0044] (4) soak the suspension in step (3) with ethanol aqueous solution for 1d, and the volume fraction of the ethanol aqueous solution is 30% (replenish in time after the solution volatilizes, and keep the suspension soaked state);
[0045] (5) Soak the suspension in step (4) with absolute ethanol for 1d (replenish in time after the solution volatilizes,...
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technical field [0001] The invention relates to a reinforced EPDM rubber and a preparation method thereof, belonging to the technical field of rubber materials. Background technique [0002] In the field of rubber, it is difficult to satisfy the reinforcement and toughening of rubber at the same time. The mechanism of filler-reinforced rubber can be explained by the theory of "binding glue": "binding glue" is the rubber adsorbed on the surface of filler particles. The more "binding glue" content, the greater the strength of the rubber. Traditional rubber reinforcing fillers (such as carbon black, etc.) can be well dispersed in rubber and have strong adsorption capacity to rubber, so the reinforcing performance is excellent. However, carbon black is a non-renewable resource, and it is used in a large amount (accounting for about 50% of rubber consumption) in the process of processing, and the dust pollution is serious. It is very necessary to find alternative reinforcing fil...
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