In the field of plastics processing, thermoplastic elastomers (TPEs) are widely used due to their excellent elasticity, abrasion resistance, oil resistance and recyclability. TPE materials have a wide range of applications, suitable for building materials, shoes, toys, automobiles, home appliances, optical fibre, communication pipes, cables and so on.
During the extrusion moulding process, the flowability of TPEs directly affects production efficiency, product quality and energy costs. Improving the extrusion flowability of TPE can not only accelerate the production speed and reduce energy consumption, but also reduce the wear and tear of equipment and improve product quality. In this paper, we will discuss the feasibility of improving the processing fluidity of TPE through silicone additives to provide practical solutions for the plastics processing industry.
The basic concept of TPE extrusion fluidity
Extrusion fluidity of TPE refers to the flow performance of TPE material when it passes through the die orifice under the shear force of the extruder screw. Good extrusion fluidity means that the material can flow smoothly and uniformly, reducing the resistance in the extrusion process, thus achieving efficient and stable extrusion moulding. Improving the extrusion fluidity of TPE is important for improving production efficiency, reducing energy consumption and decreasing scrap rate.
Adjusting TPE formulations to improve extrusion fluidity
The flowability of TPEs is closely related to their chemical composition. By adjusting the type and proportion of monomers, the flowability of TPEs can be improved.
Increasing the proportion of soft-segment monomers (e.g. butadiene, isoprene, etc.) lowers the glass transition temperature of the TPE and improves the flexibility and flow of the material. Selecting monomers with low molecular weight and good compatibility also helps to improve the fluidity of TPE.
Adding an appropriate amount of flow improver, such as lubricant and plasticiser, to the TPE formulation can significantly reduce the frictional resistance and melt viscosity of the material in the extrusion process, thus improving the extrusion flowability.
Lubricants such as stearates and silicone additives can reduce the friction between the material and the surface of the equipment; plasticisers can penetrate between the molecular chains of the TPE, increase the distance between the chain segments, and reduce the melt viscosity.
SILIKE Silicone Masterbatch LYSI-406, bringing efficient and stable solutions to the plastics processing industry
SILIKE silicone Masterbatch additives LYSI-406 is a pelletized formulation. It is widely used as an efficient additive for PP compatible resin system to improve the processing properties and surface quality, such as better resin flow ability , mold filling & release, less extruder torque , lower coefficient of friction , greater mar and abrasion resistance.
The addition of SILIKE silicone Masterbatch additives LYSI-406 to TPE resin processing provides the following benefits:
1. Adding appropriate amount of SILIKE silicone masterbatch LYSI-406 can effectively improve the processing fluidity of TPE resin, reduce the extrusion torque, improve the mould release performance and mould filling performance of the products;
2. SILIKE Silicone masterbatch LYSI-406 can reduce the coefficient of friction, improve the surface performance of TPE products, giving products a smooth feel;
3. When the addition amount reaches a certain proportion, SILIKE silicone masterbatch LYSI-406 can improve the surface wear and scratch resistance of TPE products, prolonging the service life of the products;
4. Compared with traditional low molecular weight processing aids (such as silicone oil, etc.), SILIKE silicone masterbatch LYSI-406 has better stability, improve the TPE extrusion rate, significantly reduce the product defective rate.
To improve the processing flow performance of TPE resin, choosing SILIKE silicone additives LYSI-406 is a good choice, SILIKE will bring more efficient, stable and environmentally friendly solutions for the plastics processing industry.
Chengdu Silike Technology Co., Ltd, a chinese leading Silicone Additive Supplier for modified plastic, offer innovative solutions to enhance the performance and functionality of plastic materials. Welcome to contact us, SILIKE will provide you with efficient plastics processing solutions.
Contact us Tel: +86-28-83625089 or via email: amy.wang@silike.cn
website: www.siliketech.com to learn more.
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