TPE whether it is really good than PVC? Is it really so? Here we take a look at it.
Soft PVC feature presentation:
PVC soft powdery PVC polymer, plasticizer, and other components to enhance the material plasticity, reducing the hardness of the resulting soft PVC material. Soft PVC is mainly due to the toxicity of plasticizers, PVC is still present, most adopt DOP as a plasticizer, such as phthalates, cheap. But DOP is considered great harm to human health: Scientific research shows that inhaled and food can cause shortness of breath and heart rate after the acceleration of such large amounts may cause central nervous system disorders and gastrointestinal discomfort after being absorbed, such as long-term exposure, the male will their physical impact, especially for future generations of women is the baby, resulting in deformity. PVC toy industry was once an important application areas, but with environmental directives issued abroad increasingly stringent, PVC material gradually restricted, such as the EU EN71-3, REACH, phthalic, polycyclic aromatic hydrocarbons PAHS test, the US ASTM F963 Detection , PVC materials can not pass the test, and the use of TPE, TPR soft, completely comply with environmental testing.
TPE soft basic features introduced:
It is based on SEBS elastomer as a matrix resin, adding other formulation components, blending the resulting modified functional polymer materials. TPE thermoplastic rubber material having an elastic and plastic, and by adjusting the formula to give the TPE material of different hardness and physical properties. TPE soft direct injection, production of alternative rubber accessories. Another application is the soft TPE by adjusting the formula, with the ABS, PP, PC, PC / ABS plastic coated engagement. Meet product functional requirements. TPE material can be extruded, is environmentally friendly high-grade low-voltage wire outside is the ideal raw material. In addition, the need to point out that some customers mentioned TPR, TPE or modified SEBS is the same kind of material, or very similar, but different customers call it.
By experts, the current wire and cable products on the market are 90% done with PVC protective layer, mainly PVC wire and cable technology is simple, mature, low cost, can produce different products softness, overall performance is better . However, PVC is not environmentally friendly, in the production of PVC wire and cable materials in the formulation process, a lot of companies are still adding toxic substances (lead, cadmium, chromium and other heavy metals) and highly carcinogenic substance, in less developed countries this phenomenon is particularly evident. When you add the production of PVC plasticizers, mostly belonging to environmental hormones, development and fertility, children's toys manufactured in Europe and selected materials, the use of PVC, there are a lot of restrictive regulations. Because the production of PVC material formulation process serious environmental damage, and therefore the world, many countries have not invested PVC plant, the existing capacity is gradually reduced.
Experts pointed out that with the EU ROHS (a mandatory standard developed by the EU legislation, which is called "on the restriction of the use of certain hazardous substances in electrical and electronic equipment directive"), a registered REACH (EU Regulation "chemicals , evaluation, authorization and restriction "for short) implementation of environmental regulations, people focus on the environment and life safety, electronics and life increasingly demanding environmentally friendly products, PVC plastic applications will be more and more limited. Therefore, the development of environmentally friendly flame retardant wire and cable is undoubtedly important. Currently, in the field of electronic wire, TPE material has been a lot of professionals that is an alternative to PVC material of choice.