Engineering Rubber and Plastics in Use

 Why Butyl Tapes used in Sound and Accoustic Damping? ‘A rubber that absorbs a greater amount of energy is a better damper’, This is the principle of noise, vibration and harshness reduction and cancellation using butyl tapes. Butyl Tapes from CENFUSE are high viscoelastic and it absorbs vibrations, noises, harshness by converting mechanical energy into heat energy in low level. When a vibration in the form of noise, shock, sudden impact (like a jerk in automotive) butyl tape absorbs and converts this into low heat acting as a absorber or an NVH shield. CENFUSE tapes are made from Butyl Rubber, along with high viscosity polybutylene with high extending non toxic fillers which will keep the tape non curing and flexible. Due to its non curing property it stays highly viscous and never hardens or become brittle over time during the change in temperature. The tape is of high density and the same can be increased or decreased under tight lab conditions based on the customer require...

  Silicone Curing: Types, What to Choose according to your Industry? In Silicone Rubbe r chemistry majorly 5 types of curing happen Addition Curing using Platinum Catalyst Free Radical Curing using peroxide Condensation Curing using Tin like Catalyst Moisture Curing using Acetoxy, Alkoxy etc. UV Curing using UV Light In this article we will explain the benefits of each curing system and how it helps on selecting the product for different applications. Our Major Focus area will be Platinum based , Peroxide based Curing which is majorly used in the fabrication of silicone rubber. Platinum catalyst based curing is chemical reaction used by Hydrosilylation where vinyl groups in the rubber and silane hydrides react in presence of platinum catalyst to do cross linking. Si–H + CH₂=CH–Si —Pt→ Si–CH₂–CH₂–Si The hydride molecule will connect many vinyl-silicone chains in the presence of platinum, causing an addition reaction, the major factors contribute the reaction is the hydride, v...

  Recycling of Silicone Rubber: Past, Present and Future: Attaining Sustainability Ever since the starting of processing of Silicone Rubber we were curious about the recycling and reuse of Silicone rubber produced in the process as nonconformance, rejections, trial material etc., When the volumes gone up the leftover pieces, non-confirmed parts, line rejections also had gone up. This created a necessity for introduction of recycling or reuse of silicone rubber profiles, Molded parts, cured rubber pieces from extruder. As Silicone Rubber is resistant to weathering, ozone, ultraviolet etc. due to its strong silicone bonds it cannot be broken on normal heat and temperature(You can read  here  for more details). Even above 250 degree Celsius makes it brittle, and on heating above that it gets converted to silicon oxide along with emitted gases of Carbon dioxide and others. The disposal of silicone can be achieved by simply burning it or heating it at higher temperatures but i...