Latex reclaimed rubber retains the basic performance characteristics of natural rubber, such as good elasticity and high strength, and can completely or partially replace natural rubber in the production of various products. Treadmill shock absorption mats are mainly used for cushioning and noise reduction, requiring good damping, shock absorption, wear resistance, and resilience, and can be processed using natural rubber. Using latex reclaimed rubber to reasonably replace natural rubber in the production of treadmill shock absorption mats can effectively reduce raw material costs while ensuring the performance of the finished products.
1. The role of using latex reclaimed rubber in treadmill shock absorption mats
The use of latex reclaimed rubber in treadmill shock absorption mats made primarily from natural rubber mainly serves the following four purposes:
① Latex reclaimed rubber can provide the mat with good shock absorption and cushioning effects, and can quickly rebound after compression; ② The price of latex reclaimed rubber is much lower than natural rubber, and it can replace a suitable proportion of natural rubber to produce E5LYY1013 treadmill shock absorption mats, reducing raw material costs; ③ Latex reclaimed rubber has better aging resistance than natural rubber, and producing mats with it can extend their service life; ④ Reclaimed rubber has high plasticity and good flow, facilitating mixing and vulcanization, which can reduce the energy consumption in treadmill shock absorption mat production and improve dimensional stability.
2. Tips for choosing latex reclaimed rubber for treadmill shock absorption mats
When using latex reclaimed rubber to replace natural rubber in treadmill shock absorption mats, it is recommended to choose latex reclaimed rubber with a rubber content ≥40% (the higher the rubber content, the closer the performance to natural rubber and the lower the dynamic-static stiffness ratio), mesh size ≥60 (good dispersion in mixing), tensile strength ≥8MPa, elongation at break ≥300%, Shore hardness 40-70, moderate Mooney viscosity, and compliance with EU RoHS certification. Latex reclaimed rubber is easy to process, with good elasticity and durability in the finished product.
When mixing latex reclaimed rubber into treadmill shock absorption mats, the dosage is generally above 30%, and some products may use 100% latex reclaimed rubber. The exact proportion should be determined based on the performance requirements of the mat and the physical properties of the selected latex reclaimed rubber.
3. Key points of mixing and vulcanization process when producing treadmill shock absorption mats with latex reclaimed rubber
When producing treadmill shock absorption mats with latex reclaimed rubber, strictly controlling mastication, mixing, and vulcanization processes can improve product quality and further reduce costs.
(1) Mastication process: When producing treadmill shock absorption mats with a combination of natural rubber and latex reclaimed rubber, thorough mastication is needed to achieve a plasticity of over 0.5, ensuring uniform foaming.
(2) Mixing process: Latex reclaimed rubber can be thinly masticated alone or pre-mixed with a portion of natural rubber and additives to ensure uniformity; control mixing temperature to prevent scorching.
(3) Vulcanization process: Match the vulcanization speed with the decomposition speed of the blowing agent to ensure even foam cells and effective shock absorption in the treadmill mat.
When using latex reclaimed rubber to reduce production costs of treadmill shock absorption mats, manufacturers also need to reasonably design rubber formulations. We will later share key points of formula design and low-cost vulcanization formulas for producing treadmill shock absorption mats with latex reclaimed rubber.
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