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2020-08-12
Does TPE soft rubber material stink?
Does TPE soft rubber material stink? The TPE soft rubber formula is made of warm, non-corrosive and irritating raw materials to ensure the non-toxic safety of TPE soft rubber. TPE soft rubber material does not contain halogen, does not contain o-phenylene plasticizer, does not contain PAHs, does not contain nonylphenol NP, does not contain heavy metals and radioactive elements, does not contain bisphenol A, etc., in line with ROHs, REACH, EN71, FDA (water and alcohol testing) and other testing standards. TPE soft rubber material is also widely used, such as dining table mat, backpack base, foot pedal and so on. Wires and cables: cable jacket, connectors, plugs are covered, tool materials such as screwdrivers, hammers, wheels, etc., medical equipment: suction balls, instrument handles, wheels, straps, containers, gas masks, a variety of pipe fittings, corks, diving equipment, there are also many. So TPE soft rubber material will stink? 1. simply does not volatilize small molecules, such as table salt and other solids. But there is a smell only one possibility, that is, can volatilize small molecules, and small molecules have a smell. 2. The small molecules volatilized by the material itself have no smell, such as water. TPE soft rubber material will have some taste, but not odor. It is mainly due to the volatilization of small molecules from high temperature blending or processing components. tpe products processing. High-temperature injection molding, the smell is inevitable, the greater the oil content, the greater the smell. However, after the finished product is cooled, the odor of the product will slowly fade. Shangli Plastics is looking forward to your call! Contact:13925059389 Mr. Yan For more information, please see: http://www.dgshangli.cn http://1806260057.pool2-site.make.yun300.cn/product/5/#c_product_list-15330035904672074-2
2020-08-03
What is the material of TPU phone case? Will it turn yellow?
What is the material of TPU phone case? Will it turn yellow? Many users will give the phone with a "jacket" (phone case), so that accidentally dropped, can largely reduce the damage, these cases are also a variety of materials, such as silicone, plastic, resin, TPU, etc.. Today, Shangri-Li is going to explain the knowledge of TPU material phone case, mainly to answer the question of what material is TPU phone case? Is it soft? Will it turn yellow? How to do if it turns yellow? What is TPU phone case material? Polyurethane thermoplastic elastomer (TPU), also known as polyurethane rubber, belongs to a class of elastic polymer materials containing more carbamate groups (-NHCOO-) in the molecular chain. It is a plastic material that can be softened or changed repeatedly under certain heat, while at room temperature it can keep its shape unchanged can play the role of support and protection, and is widely used in shoe materials, adhesives, pipes, films, synthetic leather, wires and cables, instrument panels, cell phone cases, medical bandages, etc. If you are careful enough, you can find it on the fabric logo of some clothes and shoes. With the enhanced performance of TPU materials, sports equipment and shoes are increasingly inclined to TPU products, especially UV-resistant and transparent materials. Therefore, TPU materials have great potential for development in the field of sporting goods and sports footwear materials. Is TPU phone case hard or soft? TPU cases are soft, but silicone is a little harder and stronger, TPU is a block copolymer, and the ratio of hard to soft components determines the performance of TPU. TPU has excellent flexibility and resilience, from very soft to very hard, from good flexibility to great rigidity, or from hydrophilic type that can absorb moisture to water-repellent type that repels water, and maintain high elasticity in a wide range of hardness (Shore A10-D75), and in the same hardness Under the same hardness than other elastomers bearing capacity. Will TPU phone case turn yellow? Yes, if you buy a light color case such as transparent or white, it will turn yellow after three or four months at most. But if it only turns yellow without fogging or sticking to your hands, it means the quality of TPU case you bought is still good. The TPU case becomes yellow how to do? Either change, or stickers, or turn a blind eye. TPU phone case yellowing and the choice of raw materials have a relationship, aliphatic anti-aging properties than aromatic some good, in addition, you can add antioxidants and anti-UV additives to improve the problem of yellowing. The above is about TPU cell phone case is what material? Is it soft? Although TPU phone case will turn yellow, I still choose TPU case because it has high transparency and high wear resistance, outstanding bearing capacity, impact resistance and shock absorption performance. Shangli Plastic is looking forward to your call! Contact:139 2505 9389 Mr. Yan For more information, please see: http://www.dgshangli.cn http://1806260057.pool2-site.make.yun300.cn/product/16/
2020-07-27
TPE material color matching problem
TPE material color matching problem Recently, many customers are also consulting me about how to match the color of TPE materials, in fact, TPE materials are generally selected to color mixing color powder, because now the market, or no special for SEBS that is TPE particles specifically produced a masterbatch, the first TPE particles itself has its limitations, he is almost a modified material, but also belongs to the plastic class. Most TPE, TPR is transparent, translucent, this white, is very easy to color, should choose the appropriate color powder or color masterbatch coloring. Generally based on SBC. TPE/TPR is better than other types in coloring TPE/TPR materials. SBC-based TPE/TPR materials only need a small amount of color masterbatch to achieve the desired color effect, and the matched color is more pure and vivid than other types of TPE/TPR. It should be noted that the viscosity of masterbatch should be lower than that of TPE/TPR, because the melt index of TPE/TPR is higher than that of masterbatch, which is good for dispersion and makes the color distribution more even. 1) For TPE/TPR with SBS as the base, it is better to use polystyrene or EVA type color carrier. 2) For TPE/TPR with SEBS as the base, it is better to use polypropylene color carrier. 3) Softer TPE/TPR with SEBS as the matrix, it is better to use low-density polyethylene or ethylene vinyl acetate copolymer instead of polypropylene carrier, in order to avoid the hardness of the composite material being affected by polypropylene carrier. 4) SBS, SEBS are not allowed to use PVC as the base color masterbatch. 5) For some applications of overmolded TPE/TPR, polyethylene carrier should be avoided because polyethylene carrier may adversely affect the adhesion between TPE/TPR and the substrate. In fact, many times it is not only necessary to choose the color masterbatch. We also need to adjust the melt index of TPE, and familiarity with injection molding equipment is also essential. http://1806260057.pool2-site.make.yun300.cn/product/5/#c_product_list-15330035904672074-2