Application of various types of functional masterbatch in nonwoven materials

Application of various types of functional masterbatch in non-woven materials 1. Overview: Non-woven (non-woven) materials have been widely used in many fields such as clothing, medical and health, filtration, prosthesis corrosion, agricultural protection, thermal insulation and sound insulation. application. In the application of different fields, different properties of FE nonwoven materials are required, such as: antibacterial, antistatic, flame retardant, soft, anti-aging, hydrophilic, anti-mildew, etc. One or several properties of nonwoven materials can be enriched by adding functional masterbatch. The following functional masterbatch is briefly introduced. 2. Introduction of functional masterbatch (1) Flame-retardant masterbatch Nonwoven materials are widely used in clothing, construction, automobile, decoration and other fields. It also puts forward higher requirements for its flame retardant performance. Adding flame-retardant masterbatch in the preparation process of the material can effectively improve the flame-retardant performance of the product. (2) Antibacterial masterbatch. In the human living environment, microorganisms that cannot be seen by the naked eye are everywhere, and pathogenic bacteria such as bacteria and molds are the main factors affecting human health. Therefore, the research and development of antibacterial functional materials has attracted widespread attention. (3) The anti-aging masterbatch polymer material may be deteriorated at all stages of its synthesis, storage, processing and final use, that is, the performance of the material is reduced, such as yellowing, surface cracking of the product, loss of gloss, and reduced impact strength And so on; the fiber shows the decrease of mechanical properties such as tensile strength and elongation at break, thus affecting the normal use of the product. This phenomenon is the aging of the polymer material. The aging of nonwoven materials can generally be solved by choosing different anti-aging masterbatches according to different application fields. (4) Antistatic masterbatch The classification of antistatic agents: One is conductive materials, such as carbon black, carbon fiber, stainless steel microwire, conductive polymer, etc. The other type is to adsorb water molecules in the air. This type of antistatic agent is a polar compound with a hydrophilic hydrophilic group. The hydrophilic group can adsorb water molecules around the air to the material, making The surface resistivity of the material is reduced and static electricity is eliminated. Such as: glycerol monostearate, N,N-bis(2-hydroxyethyl) fatty amide and its ester mixture. Later antistatic agents are more commonly used to prepare antistatic masterbatches. (5) Hydrophilic masterbatch Polyolefin-based nonwoven materials have poor hydrophilicity, and need to improve their hydrophilicity in some applications, such as baby diapers, facial masks, medical wound patches, etc. (6) Flexible masterbatch Conventional polypropylene avant-garde has a high thermal bonding temperature and soft hand feeling, so its status as a thermal bonding fiber in non-woven materials is restricted. The user wants to reduce the melting point of polypropylene fiber to 140°C or even below 130°C in order to adapt to the higher speed of nonwoven thermal bonding production and reduce energy consumption. If the melting point is too high, it will be difficult to make nonwovens with high strength and soft touch. Therefore, it is necessary to modify the polypropylene fiber to improve its flexibility and reduce the thermal bonding temperature. By adding a soft masterbatch during the preparation process, the melting point of the fiber can be effectively reduced, and the softness of the polypropylene fiber can be improved. (7) Anion masterbatch according to research shows that anion can regulate the excitement and inhibition of the central nervous system, improve the function of the cerebral cortex; increase the amount of oxygen absorption and carbon dioxide emissions, can promote the body's metabolism, accelerate the redox of the tissue Process, increase the body's immunity. Therefore, in recent years, negative ion products have become more and more popular. (8) Anti-mold masterbatch Mold brings many inconveniences to our lives, such as: mildew of food and clothing. As the application field of nonwoven materials becomes more and more light, and more and more functional requirements, for functional masterbatch companies, it is both an opportunity and a challenge. We must have keen insight, keep up with the pace of the market, and focus on the development of new products. The development trend of functional masterbatch: composite multi-functional masterbatch, such as: antibacterial, mold-proof and deodorizing masterbatch, hydrophilic soft masterbatch, negative ion far-infrared masterbatch, etc. Low-addition high-performance masterbatch, such as: selecting high-performance nano-fillers, selecting appropriate dispersants to enhance the dispersion of fillers, etc.