Speaking of rubber ring material, good elasticity, high elongation is a must have the performance, so the reclaimed rubber products latex reclaimed rubber is the most suitable material for the production of apron. However, the elasticity and elongation at break of latex reclaimed rubber are higher than those of other reclaimed rubber. However, it is also true that rubber reclaimed rubber has poor flex cracking resistance. Therefore, the following problems must be paid when using latex reclaimed rubber to produce apron :
1, the choice of Mooney viscosity higher latex reclaimed rubber: Mooney viscosity is a measure of reclaimed plastic plasticity standards, Mooney viscosity is too high plasticity is poor, processing difficulties, Mooney viscosity is too low will affect the apron elongation; Therefore, the need to make the best choice of high Mooney viscosity latex reclaimed rubber without affecting the processing technology.
2, adjust the latex reclaimed rubber ring formula
A good or bad recycled rubber products in addition to good raw materials, is a reasonable product formulations, and a good formula can make up for the impact of raw material defects on the products, so to improve the quality of latex reclaimed rubber can be achieved by adjusting its formula.
(1) Resin is used as reinforcing plasticizer for reclaimed rubber processing. Increasing the amount of resin in latex reclaimed rubber can improve the elongation at break of reclaimed rubber. It is better to use C9 petroleum resin because the same amount Next, add C9 petroleum resin latex reclaimed rubber gum tear elongation higher;
(2) In addition, rubber oil and rubber have a good compatibility affinity, can reduce the power consumption of mixing, and promote the uniform dispersion of various excipients, so as to improve the elasticity, flexibility, plasticity and kneadability of latex reclaimed rubber , Improve rubber ring elongation;
(3) The use of an acidic super accelerator as a second accelerator in the cure system, such as thiuram disulfide accelerator such as tetramethylthiuram (TMTD), tetraethylthiuram disulfide (TETD) , These additives in the rubber dispersion good performance, can effectively improve the physical and mechanical properties of reclaimed rubber, including its elongation at break.
As long as a reasonable design formula, latex reclaimed rubber can also be used in the production of aprons, and produce high-quality apron products.
Exclusive original article [commercial authorization] reprint, excerpt and excerpt in any form are prohibited without written authorization. Focus on Hongyun rubber: learn the process formula and raw material technology of producing rubber products from recycled rubber to help you reduce costs and increase profits