Overview of filled reinforced nylon graphene superconducting sheet production line
DATE：2021/7/13 8:38:02 / READ： / SOURCE：This station
Overview of filled reinforced nylon graphene superconducting sheet production line
Filling modification is a process of adding fillers (usually inorganic fillers) which are different from polymer in composition and structure into polymer by mechanical mixing to form a well dispersed composite system. There are three kinds of fillers in common use: 1. Emotional fillers: for the purpose of increasing volume and reducing cost; 2. Active fillers: for the purpose of improving some mechanical and physical properties of polymers; 3. Functional filler: for the purpose of endowing or improving some functional properties of polymer. Graphene superconducting sheet production line www.handern.comIn the preparation process of filled nylon, a certain amount of inorganic fillers such as graphite, molybdenum disulfide, carbon black, etc. and a certain amount of additives (such as flame retardant, antioxidant, colorant, etc.) are added into nylon raw materials to prepare a variety of filled modified nylon. The purpose of filling modified nylon is to improve the dimensional stability of nylon, reduce the molding shrinkage and warpage of products, improve the toughness and wear resistance of products, reduce the production cost and improve the rigidity of products. Graphene superconducting sheet production line www.handern.com
Filler type for nylon: 1 calcium carbonate (CaCO) calcium carbonate can be divided into heavy and light according to its source. The uncoated fine-grained calcium carbonate acts as a real reinforcing agent in nylon. It can improve the tensile strength, has excellent surface quality, high hot deformation temperature, excellent rigidity and toughness, and is resistant to many solvents, fuel oils, vegetable oils and animal oils. Calcium carbonate filled nylon reduces the cost of raw materials and is widely used in electrical appliances, household goods, washing machines and automobile gears. Silicate silicate includes mica, talc, wollastonite and kaolin. For crystalline nylon, talc has the effect of nucleating agent, which can improve the crystal size and integrity of nylon, reduce crystal defects and improve the properties of nylon. The interfacial adhesion between silicate and nylon can be improved by using aminosilane as coupling agent. The use of aluminum, bronze, lead, molybdenum, copper and nickel powder can obtain high hot deformation temperature and electrical conductivity. Nylon filled with 80% barium ferrite can be used as a small magnet. Graphene superconducting sheet production line www.handern.com
The fillers with needle like, rod-shaped and layered crystal structure can not only be used as fillers to reduce production costs, but also have a certain strengthening effect. Most of the conventional fillers directly added to nylon resin will cause the decline of some properties of nylon plastics, such as impact strength, tensile strength, surface gloss and processing fluidity. However, the surface treatment or direct addition of reinforcing fillers will not cause the decline of tensile strength, but will improve the tensile strength to a certain extent. In recent years, with the continuous development of filler shape control and crushing technology, ultra-fine inorganic filler can improve the rigidity and toughness of plastics at the same time, and become a very promising inorganic filler, which can reduce the cost and improve the rigidity and toughness, which is incomparable with most materials. But generally speaking, the reinforcing effect of filler is far less than that of reinforced fiber, which can only be used in some occasions where the strength requirement is not too high. Graphene superconducting sheet production line www.handern.com
Characteristics of filled reinforced nylon: the reinforcing effect of nylon resin due to filler depends on the particle size, shape (needle, flake, spherical), length diameter ratio and surface treatment agent of filler. In addition to the above factors, the heat resistance, drug resistance and electrical characteristics of fillers should also be considered when selecting fillers. At present, the commercial filler reinforced nylon aims at improving the properties of low warpage, low coefficient of linear expansion, surface modification and electroplating. The so-called hybrid reinforcement is not only used alone, but also combined with glass fiber. The main characteristics of filled reinforced nylon are high rigidity, small molding shrinkage, high hardness and low cost. Graphene superconducting sheet production line www.handern.com
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