Oil-absorptive resin and oil-absorptive expanding rubber comprising same
An oil-absorbing resin and oil-absorbing swelling technology, which is applied in the field of oil-absorbing swelling rubber, can solve the problems of low compressive strength and achieve high expansion ratio, easy operation, and excellent mechanical properties
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[0046] Example 1
[0047] This embodiment provides an oil-absorbing resin, in parts by weight, the oil-absorbing resin includes the following components:
[0048] 50 parts of butyl methacrylate, 20 parts of lauryl methacrylate, 1.5 parts of diethanol, 1 part of benzoyl peroxide (BPO), 0.01 part of 1,4-butanediol diacrylate, 30 parts of water .
[0049] The above oil-absorbing resin is prepared by the following method:
[0050] Step 1: Add butyl methacrylate and lauryl methacrylate into the reaction kettle at a temperature of 25° C., stir evenly to obtain a mixed solution;
[0051] Step 2: Add diethanol, benzoyl peroxide (BPO), and 1,4-butanediol diacrylate in batches to the mixed liquid, add water as the dispersed phase for dispersion, and stir to obtain a reaction liquid;
[0052] Step 3: Stir the reaction solution uniformly for 30 minutes and then discharge the material. After 3 hours, polymerize into particles with small pores inside and fluffy appearance to obtain oil-absorbing resi...
Example Embodiment
[0059] Example 2
[0060] This embodiment provides an oil-absorbing resin, which, in parts by weight, includes the following components:
[0061] 60 parts of butyl methacrylate, 10 parts of 2-ethylhexyl acrylate, 15 parts of isobutyl methacrylate, 1.5 parts of diethanol, 1 part of benzoyl peroxide (BPO), 1,4 parts of diacrylic acid -0.01 parts of butanediol ester and 30 parts of water.
[0062] The above oil-absorbing resin is prepared by the following method:
[0063] Step 1: Add butyl methacrylate, 2-ethylhexyl acrylate, and isobutyl methacrylate to the reaction kettle at a temperature of 25° C., stir evenly to obtain a mixed solution;
[0064] Step 2: Add diethanol, benzoyl peroxide (BPO), and 1,4-butanediol diacrylate in batches to the mixed liquid, add water as the dispersed phase for dispersion, and stir to obtain a reaction liquid;
[0065] Step 3: Stir the reaction solution uniformly for 20 minutes and then discharge it. After 2 hours, polymerize into particles with small pores ...
Example Embodiment
[0072] Example 3
[0073] This embodiment provides an oil-absorbing swellable rubber containing the oil-absorbing resin of embodiment 1. In parts by weight, the oil-absorbing swellable rubber includes the following components:
[0074] 100 parts of nitrile rubber, 80 parts of oil-absorbing resin, 60 parts of carbon black, 2 parts of stearic acid, 0.5 parts of sulfur, 10 parts of dibutyl phthalate (DBP), tetramethylthiuram disulfide (TMTD) 1 part, 0.5 part of 2,2'-dithiodibenzothiazole (DM), 1 part of N-isopropyl-N'-phenyl-p-phenylenediamine (4010NA), 8 parts of zinc oxide.
[0075] The above oil-absorbing swellable rubber is prepared according to the following steps:
[0076] Step 1. Mix the nitrile rubber and the oil-absorbing resin prepared in Example 1 in an internal mixer. The internal mixer is GK400. The mixing temperature is controlled at 120-130°C and the rotor speed is controlled at 50r / min. The top plug pressure is 0.3MPa, the glue discharge temperature is 90°C, and the mate...
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