High-strength oil-resistant conveying belt and preparation process thereof
A conveyor belt and high-strength technology, applied in the field of conveyor belts, can solve problems such as swelling and reducing the service life of conveyor belts, and achieve the effects of improving compatibility, improving processing performance, and improving processing performance
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preparation example preparation example 1
[0048] 1. Preparation example of maleic anhydride grafted EPDM Preparation Example 1: ①Grafting: Add 100kg EPDM rubber to the torque rheometer, and then add 2.8kg maleic anhydride, 0.2 kg dibenzoyl peroxide, 1.2kg tripropylene glycol diacrylate, 0.8kg glycidyl methacrylate and 0.02kg N,N-dimethylaniline, at a temperature of 170°C, at a speed of 60r / min Mix for 8 minutes to obtain a graft;
[0049] ②Purification: Take 10kg of primary graft, immerse it in 100kg of xylene, heat it to 60°C to dissolve it, then add 50kg of acetone, stir at a speed of 40r / min to obtain a precipitate, and vacuum the precipitate After filtering, the secondary graft was obtained; the secondary graft was dried at a temperature of 60°C for 10 hours to obtain purified maleic anhydride grafted EPDM rubber.
preparation example 2
[0050] Preparation example 2: ① Grafting: Add 100kg EPDM rubber to the torque rheometer, and then add 2.9kg maleic anhydride, 0.22kg dibenzoyl peroxide, 1.3kg tripropylene glycol di Acrylate, 0.9kg glycidyl methacrylate and 0.03kg N,N-dimethylaniline were mixed at a temperature of 175°C for 9 minutes at a speed of 65r / min to obtain a primary graft;
[0051] ②Purification: Take 10kg of primary graft, immerse it in 105kg of xylene, heat it to 65°C to dissolve it, then add 55kg of acetone, stir at a speed of 45r / min to obtain a precipitate, and vacuum the precipitate After filtering, the secondary graft was obtained; the secondary graft was dried at a temperature of 65° C. for 11 hours to obtain purified maleic anhydride grafted EPDM rubber.
preparation example 3
[0052] Preparation example 3: ① Grafting: Add 100kg EPDM rubber to the torque rheometer, and then add 3kg maleic anhydride, 0.24kg dibenzoyl peroxide, and 1.4kg tripropylene glycol diacrylic acid after 60 seconds Esters, 1kg glycidyl methacrylate and 0.04kg N,N-dimethylaniline were mixed at a temperature of 180°C at a speed of 70r / min for 10min to obtain a primary graft;
[0053] ②Purification: Take 10kg of primary graft, immerse it in 110kg of xylene, heat it to 70°C to dissolve it, then add 60kg of acetone, stir at a speed of 50r / min to obtain a precipitate, and vacuum the precipitate After filtering, the secondary graft was obtained; the secondary graft was dried at a temperature of 70° C. for 12 hours to obtain purified maleic anhydride grafted EPDM rubber.
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