Ordinary wear-resistant rubber sheets are generally processed with natural rubber and styrene-butadiene rubber as the main raw materials; wear-resistant rubber sheets with special requirements for oil resistance mostly use nitrile rubber. In actual production, when using natural rubber/styrene-butadiene rubber to produce wear-resistant rubber sheets, a certain proportion of latex reclaimed rubber can be blended, or latex reclaimed rubber can be used directly instead of natural rubber, which is more cost-effective when combined with styrene-butadiene rubber. The wear-resistant rubber sheet.
1. Reference formula for natural rubber/styrene-butadiene rubber production wear-resistant rubber sheet
50 parts of natural rubber, 50 parts of styrene butadiene rubber, 5 parts of zinc oxide, 2.5 parts of stearic acid, 2.2 parts of accelerator; 2 parts of sulfur, 65 parts of carbon black, 22.5 parts of softener, 2.5 parts of antioxidant, total: 201.7 parts .
2. Selection of latex reclaimed rubber for natural rubber/styrene butadiene rubber wear-resistant rubber sheet
When using latex reclaimed rubber in the formulation of wear-resistant rubber sheets produced with natural rubber/styrene butadiene rubber, it is recommended to use black latex reclaimed rubber for ordinary black wear-resistant rubber sheets, which have high mechanical strength, good elasticity, and relatively low price. In the wear-resistant rubber sheet 2YLYY76, the cost of raw materials can be effectively reduced under the premise of ensuring the quality of the rubber sheet. In actual production, the amount of black latex reclaimed rubber mixed in the wear-resistant rubber sheet needs to be determined according to the performance requirements of the rubber sheet and the basic mechanical indicators of the latex reclaimed rubber, and it can even completely replace natural rubber.
3. Design of various coordination systems for wear-resistant rubber sheets containing latex reclaimed rubber
When using latex reclaimed rubber to reduce the raw material cost of wear-resistant rubber sheets with natural rubber/styrene butadiene rubber as the main raw material, it is recommended to use sulfur vulcanization. The accelerator CZ and the accelerator DM can be used together, and a small amount of the accelerator TMTD can be used for better coordination. Vulcanization effect and quality of vulcanizate. To improve the mechanical strength and wear resistance of the latex reclaimed rubber wear-resistant rubber sheet, you can choose high wear-resistant carbon black with a small amount of medium and super wear-resistant carbon black to strengthen; adjust the amount of softener to coordinate the wear resistance and hardness, tensile strength, and tensile strength of the rubber sheet.
4. The production process of wear-resistant rubber sheets containing latex reclaimed rubber
The main production steps of using natural rubber/latex reclaimed rubber/styrene butadiene rubber or latex recycled/styrene butadiene rubber to produce wear-resistant rubber sheets are as follows: raw rubber→plasticizing→mixing→heating→discharging→vulcanization→trimming Check → Pack and store. When mixing rubber, it is recommended that different types of rubber are fully masticated and then mixed. When the wear-resistant rubber sheet is produced, choose a calender to produce the pieces. When vulcanizing, it is recommended to continuously pressurize and vulcanize section by section. Later, the editor will have the opportunity to continue to share with you the skills of using recycled rubber to produce wear-resistant rubber sheets.
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