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A technology of thermoplastic elastomers and parts by weight, applied in the field of thermoplastic elastomers, can solve the problems of difficult to achieve uniform mixing of raw materials, poor structural strength and elasticity of thermoplastic elastomer composite materials, poor compatibility, etc. The effect of slowing down aging and improving surface gloss
Inactive Publication Date: 2018-08-24
ZHEJIANG HONGSHENGYUAN CAR ACCESSORIES
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Problems solved by technology
[0005] However, in this thermoplastic elastomer composite material, due to the poor compatibility among styrene-based thermoplastic resins, polyethylene, polypropylene, and polyolefin elastomers, it is difficult to achieve uniform mixing of raw materials by directly mixing the above raw materials. , which in turn leads to poor structural strength and elasticity of the obtained thermoplastic elastomer composite, which needs to be improved
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Embodiment 1
[0029] Embodiment 1: A kind of thermoplastic elastomer, each component of raw material and weight parts are as shown in Table 1, and preparation method comprises the following steps:
[0030] Step 1, SEBS (hydrogenated styrene-butadiene block copolymer), SBS (styrene-butadiene-styrene block copolymer), PS (polystyrene), PP (polypropylene), carbon Black, nano-calcium carbonate, naphthenic oil 4010, antioxidant, stearic acid, silicone masterbatch, zinc stearate and dibutyl hydroxytoluene are put into a rotary mixer and mixed evenly to obtain a mixture;
[0031] In step 2, the mixture is added to a twin-screw extruder, the mixture is extruded through the extruder and injected into a mold, cooled, dried, and packaged to obtain a product made of thermoplastic elastomer.
Embodiment 2
[0032] Example 2: A thermoplastic elastomer, the difference from Example 1 is that the components and parts by weight of the raw materials are shown in Table 1.
Embodiment 3
[0033] Embodiment 3: A kind of thermoplastic elastomer, each component of raw material and weight parts are as shown in Table 1, and preparation method comprises the following steps:
[0034] Step 1, SEBS (hydrogenated styrene-butadiene block copolymer), SBS (styrene-butadiene-styrene block copolymer), PS (polystyrene), PP (polypropylene), carbon Black, nano-calcium carbonate, naphthenic oil 4010, antioxidant, stearic acid, silicone masterbatch and dibutyl hydroxytoluene are put into a rotary mixer and mixed evenly to obtain a mixture;
[0035]In step 2, the mixture is added to a twin-screw extruder, the mixture is extruded through the extruder and injected into a mold, cooled, dried, and packaged to obtain a product made of thermoplastic elastomer.
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Abstract
The invention discloses a thermoplastic elastomer prepared from raw materials comprising the following components in parts by weight: 1-12 parts of SEBS, 3-15 parts of SBS, 1-12 parts of PS, 1-10 parts of PP, 1-5 parts of carbon black, 10-35 parts of nanometer calcium carbonate, 10-20 parts of naphthenic oil, 0.1-0.5 part of antioxidant and 0.1-1 part of stearic acid. SEBS, SBS, PS and PP are usedas matrix materials, and nanometer calcium carbonate is capable of improving the compatibility among the matrix materials, so that the mixing uniformity of the matrix materials is improved. Micromolecules of the naphthenic oil is capable of entering among molecular chains to play a role in wetting an interface, so that the matrix materials are better combined, and furthermore, the compatibility among the matrix materials is improved. Stearic acid has dispersion and emulsion effects and is capable of improving the compatibility among the matrix materials, and furthermore, the mixing uniformityof the matrix materials is improved, so that the internal structural strength of a product is improved; and meanwhile, stearic acid is also capable of increasing the dispersity of nanometer calcium carbonate and the naphthenic oil in the matrix materials, so that the effect that the combination degree of the matrix materials is increased by nanometer calcium carbonate and the naphthenic oil is improved.
Description
technical field [0001] The invention relates to the technical field of automotive supplies, and more specifically, relates to a thermoplastic elastomer. Background technique [0002] The car floor mat is an environmentally friendly car interior that integrates the five main functions of water absorption, vacuuming, decontamination, sound insulation, and protection of the main blanket. Car floor mats are interior decorations, which keep the interior of the car clean and play the role of beautiful and comfortable embellishment. [0003] Thermoplastic elastomers, also known as thermoplastic rubbers, are materials that combine the properties of rubber and thermoplastics. It shows rubber characteristics at room temperature and can be plasticized and formed at high temperature. Its products not only have the high elasticity, aging resistance, oil resistance and other excellent properties of traditional cross-linked vulcanized rubber, but also have the convenience and wide process...
Claims
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Application Information
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