What are the differences between tpe and pvc?

The main difference between TPE and PVC is their different properties; TPE is a thermoplastic elastomer material that does not contain plasticizers and is environmentally friendly and non-toxic. PVC is polyvinyl chloride, which is recognized by the World Health Organization as a Class 3 carcinogen. A plasticizer is added during processing. Secondly, the hardness of the two is also different; TPE hardness is 10~95A, and PVC hardness is 10~20P. In addition, TPE and PVC are very different in terms of feel, combustion state, flame retardant level, temperature resistance, etc. 1. Different properties TPE is a thermoplastic elastomer material with high elasticity, high strength and high resilience of rubber. TPE material does not contain plasticizers and is an environmentally friendly and non-toxic material. PVC is polyvinyl chloride, which is recognized by the World Health Organization as a Class 3 carcinogen. A plasticizer is added during processing. PVC products will slowly decompose at high temperatures to produce hydrogen chloride gas, which is harmful to the human body and can easily pollute the environment. 2. TPE with different hardness: 10~95a. The hardness of TPE is usually expressed by Shore A, and special hardness is measured by OO and d. PVC: 10~20P. In China, PVC is expressed by the percentage P of plasticizer and PVC raw material, and the hardness unit is P. It should be noted that Yes, the greater the hardness value of TPE, the harder the material; the greater the hardness of PVC, the softer the material. 3. There is a difference in feel. TPE is soft to the touch, highly elastic, and mild in texture, but has weak elasticity and soft touch. PVC feels relatively hard. Adding plasticizers can make plastic products softer and easier to bend. 4. Different burning states of TPE: fragrant smell, yellow flame and blue flame, continue burning when the fire source is removed. PVC: chlorine smell, yellow-green flame, self-extinguishing when the fire source is removed. In terms of flame color, when TPE burns, the flame root is blue, while PVC is green. 5. Flame retardant PVC of varying degrees has better flame retardancy than TPE without adding flame retardant materials. The flame retardant grade of TPE is UL94-HB. It will burn when exposed to fire and will not extinguish after catching fire. PVC has a flame retardant rating of UL94-V2 and is self-extinguishing. The flame will generally go out when the ignition source is removed. 6. Temperature-resistant TPE: -50~90℃; PVC temperature-resistant: -10~80℃; TPE has better cold resistance and high temperature resistance than PVC, but PVC has higher chemical resistance and corrosion resistance and ozone resistance.