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    Welcome: Guangdong Blue Plastic Technology Co., Ltd.
    Language: Chinese ∷  English

    Industry new

    Method to reduce odors of TPE materials and products

          With the continuous expansion of TPE and TPR thermoplastic elastomers, more attention has been paid to the smell of TPE and TPR materials in recent years. The original is no longer normal, TPE, TPR odor is too large, one does not smell good, and then is that consumers feel that the material is not environmentally toxic.
    People smell the principle of smell
          The reason why people feel the smell of incense is actually a substance of molecular diffusion into the nose, the human olfactory organs produce a series of reactions, the formation of specific information into the brain, thus forming a certain smell judgments, such as aromatic , Smell and so on. So the scent we smell is a small molecule that evaporates into the air.
           Speaking of small molecules that evaporate into the air, I have to mention one of the raw materials - VOC (volatile organic compounds) volatile organic compounds. There are two possibilities of tastelessness. One is that the small molecules that the material volatilizes are odorless, such as water; the other is that they do not volatilize small molecules such as salt and other solids. But there is only one possibility of taste, that is, can emit small molecules, and small molecules smell.

    Analysis of TPE Odor of Thermoplastic Elastomer
           Thermoplastic elastomers TPE is a blend of polymer materials, the most volatile compounds in the system is a variety of oils (operating oil, essential components of the system, such as white oil, naphthenic oil, etc.), the main oil Ingredients are organic hydrocarbons, which are easily volatile at high temperatures. And the quality of the oil directly affects the size of the product odor; other VOC content of the various formulations should try to choose the raw material with small VOC content. The smaller the VOC content, the lighter the odor of the product.
           In the case of thermoplastic elastomers TPE (usually based on SBC styrenic blend modified TPES), the process oil is an essential component and the process oil is a volatile organic hydrocarbon (VOC), which requires a 150 ~ 200 ° C blends made of the production process of the operating oil and other VOC-containing components will volatilize a variety of odor of small molecules, so TPE odor is inevitable. However, TPE, including the operating oil, is the main component of the environment-friendly non-toxic, so although TPE may have a certain smell, but no harm to human health.
    Method to reduce odors of TPE materials and products
           The reason why TPE smell, mainly high-temperature blending or processing components caused by the evaporation of small molecules. suggestions below:
           1.TPE compound system, try to choose a small VOC volatile oil and processing aids. Operating oil should choose a high degree of hydrogenation varieties.
           2.TPE blend. After fully cooled and packaged, the smell of pellets will be smaller.
           3.TPE product 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 gradually fade.

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