A kind of natural rubber composite material and preparation method thereof
A technology of natural rubber and composite materials, applied in the field of rubber reinforcement, can solve problems such as the decline of wear resistance of rubber materials
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
preparation example Construction
[0064] The present invention also provides a kind of preparation method (A+B method) of natural rubber composite material, comprises the following steps:
[0065] mixing the white carbon black dispersion with the first natural rubber to obtain a mixed material containing white carbon black;
[0066] Mixing the mixed material containing white carbon black with the first coagulant to obtain a white carbon black masterbatch after solidification;
[0067] mixing the silica dispersion with the second natural rubber to obtain a mixed material containing silica;
[0068] Mixing the mixed material containing silica with a second coagulant to obtain a silica masterbatch after solidification;
[0069] After mixing and vulcanizing the silica masterbatch, silica masterbatch, carbon black, coupling agent, softener, antioxidant, active agent, accelerator and vulcanizing agent, a natural rubber composite material is obtained;
[0070] Described white carbon black, the first natural rubber,...
Embodiment 1
[0105] Add 45g of white carbon black powder to 360g of water, use a high-shear homogenizer, disperse the resulting mixed material at 10,000rpm for 30min, add it to 400g of fresh latex with a dry content of 20%, and mechanically stir at 500rpm for 30min , add 32g of acetic acid solution with a mass fraction of 5% to solidify for 10min, dehydrate and dry at 100°C for 4h to obtain a white carbon black masterbatch; add 5g of silica to 50g of water, and use a high-shear homogenizer at 10,000rpm The obtained mixed material was dispersed for 30 minutes, added to 100 g of fresh latex with a dry content of 20%, mechanically stirred at 500 rpm for 30 minutes, and 8 g of acetic acid solution with a mass fraction of 5% was added to solidify for 10 minutes, dehydrated and dried at 100 ° C. After 4 hours, the white carbon black masterbatch was obtained. Then the white carbon black masterbatch of 125g preparation and the silica masterbatch of 25g preparation, with 5g carbon black N330, 4g bi...
Embodiment 2
[0107] Add 45g of white carbon black powder and 5g of silica to 360g of water, use a micro-jet homogenizer to disperse the obtained mixed material at 200MPa, the number of cycles is 5 times, and add it to 500g of 20% dry In fresh latex, mechanically stir at 500rpm for 30min, add 40g of formic acid solution with a mass fraction of 2% for coagulation for 30min, dehydrate and dry at 100°C for 4h to obtain a silica / silica masterbatch. Then the white carbon black / silica masterbatch of 150g preparation, with 5g carbon black N330, 4g two (triethoxypropyl silane) tetrasulfides, 1g antioxidant RD, 4g TDAE oil, 1g stearic acid, 3g of ZnO, 1.5g of CZ, 2g of D and 1.5g of sulfur were mixed and vulcanized according to the conventional mixing process to obtain rubber composite materials.
PUM
| Property | Measurement | Unit |
|---|---|---|
| particle diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More