Overmolded PC, ABS series TPE, can be second injection bonded with ABS, PC and PC/ABS alloy and other base materials overmolded. Bonding series products can be substituted with PC, such as Tritan

　　Previously, a customer asked us on our, why TPE wrapped ABS package is not strong? It is easy to fall off. Shibe asked him if he bought it from my house. The customer replied no. He bought it from a TPE manufacturer in Jiangsu, and tried their material many times, but it was still not good and wasted a lot of time. 　

Overmolding in the field of thermoplastic elastomers is a special kind of overmolding. And what is overmolding? Simply put, overmolding can be plastic overmolding, or soft plastic overmolding, or soft plastic over soft plastic.

　　The elastomer industry commonly refers to TPEs as SEBS modified by a composite functional material. TPE elastomers have excellent overall properties and are soft materials used in molding and two-color injection molding processes.

　　Before some users asked how to do TPE transparent material? Or TPE how to do more transparent and so on technical issues. Today, plastic uncle for you to introduce the TPE material whitening tips. 　　White is a color that contains all the colors of light in the spectrum and is usually considered "colorless". White has the highest brightness and no color phase. However, it does not have a strong personality and does not evoke taste associations, but white should not be absent from the color that arouses appetite, because it indicates cleanliness and deliciousness. TPE pelletizing manufacturers even reach the point of faultfinding when it comes to white. 　　Speaking of TPE whitening must be mentioned coloring agent, and speaking of coloring agent has to mention the coloring agent several important parameters. 　　1. Coloring power 　　Coloring power is the configuration of a certain color is the amount of coloring agent added, the general coloring power is expressed as a percentage of the coloring power of the standard sample. Common white colorant coloring power as follows: 　　Lead white: 200 　　Zinc titanium white: 7.7 　　Lead sulfate: 235.3 　　Anatase titanium white: 16 　　Rutile titanium white: 12.5 　　As you can see above, titanium dioxide is not the strongest coloring power, but in addition to the coloring power, the toxicity of the colorant also has a great impact. The coloring power of the colorant is related to its nature, but also to its TPE particle size. The larger the particle size, the better the dispersion, the higher the coloring power. But the particle size has a limit value, more than the limit value will reduce the coloring power. 　　2. Covering power 　　Covering power refers to the ability to cover the underlying color on the surface of the object, and it is generally used as the number of grams of colorant required per square meter. The smaller the number of grams required, the stronger the covering power. Covering power is 45-50g/m2 for titanium dioxide, 100g/m2 for zinc white, 137g/m2 for zinc titanium dioxide, and 137g/m2 for lead white. titanium dioxide has the strongest covering power. 　　Like coloring power, particle size also has an effect on covering power, the larger the particle size, the greater the covering power, and there is also a limit value. 　　3. Dispersion 　　The dispersion of colorant refers to the uniformity of dispersion in TPE material, and the good or bad dispersion affects the coloring power and covering power. Common white colorant will be blue if the dispersion is good, and will be yellow if the dispersion is poor. Dispersion can be improved by grinding, blending, using surface treatment agents and other methods. 　　In addition to the above points, heat resistance, light resistance, migration resistance, toxicity, etc. are also properties that affect the performance of colorants. Common white white colorants are titanium dioxide, zinc dioxide, zinc oxide, etc.. Among them, titanium dioxide is divided into rutile and anatase, rutile can shield ultraviolet light, mainly for outdoor use, anatase mainly for indoor use.

　　Polystyrene-based elastomer TPE-S 　　1 TPE-S concept 　　TPE-S is a type of thermoplastic elastomer obtained by modifying SBS (polystyrene-butadiene-styrene block copolymer) or hydrogenated SBS - SEBS as the base material. The TPE-S elastomer modified with SEBS is customarily referred to as TPE and the TPE-S elastomer modified with SBS is referred to as TPR (unless otherwise noted below, TPE refers to the TPE-S class, not the broad TPE thermoplastic elastomer concept).

　　1、Applications for home appliances: washing machine filter seal, dryer roller wheel, sink cover and door of dishwasher, paneling, seal of refrigerator, air conditioner, garbage disposal, ice machine seal, vacuum cleaner (upright and portable) after the dirt cover and seal and pulley, iron wire bending sheath and grip, blender grip, food processor, coffee machine, toaster, detergent compartment Seals, appliance feet, refrigerator compressor fixed standoffs, dryer door seals, drainage pipe connectors.

　　I. Basic characteristics: 　　TPE80A, also known as TPE80 degree. TPE80A is a polymer alloy material based on SEBS thermoplastic elastomer blended and modified by TPE manufacturers. The appearance is translucent or white granules, specific gravity 0.9~1.4, shrinkage rate 1.4~1.7%.

　　Definition of shaded surface of injection molded products 　　A TPE|TPR injection molded product surface appears to have a difference between bright and dark colors, while the corresponding mold surface does not have this rough and detailed difference.