MBS | Methacrylate-butylacrylate-styrene
Thermoplastics > Acrylates
MBS - Copolymer of methyl methacrylate, acrylonitrile, butadiene and styrene | |||||||||
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In Mexpolimeros we offer a wide range of MBS resin and compounds developed according to their needs, ensuring quality products and service. It is available in a wide range of degree with special additives and special lubricant, colored grades, high gloss, high impact, with improved thermal properties, flame-retardant, conductors. |  | ||||||||
| MBS - Copolymer of methyl methacrylate, acrylonitrile, butadiene and styrene | |||||||||
MBS is a styrene - acrylic copolymer impact modified that provides a balance of clarity and resistance with outstanding strength and rigidity. MBS resin also has characteristics superior processing for demanding applications injection molding. Methyl methacrylate acrylonitrile butadiene styrene, or MBS, is a more recent modification of the SMMA copolymer, methyl methacrylate, acrylonitrile, butadiene and styrene. MBS is a polymer of methyl methacrylate butadiene styrene, created by modifying an acrylic styrene SMMA with an impact modifier SBC . It is also known as an MBS or terpolymer, or a copolymer impact modified. Both materials are transparent and can be easily colored by adding liquid concentrates or colors. MBS key properties are excellent transparency, high impact resistance and good chemical resistance. This is an outstanding combination of properties for a thermoplastic impact - modified. MBS can be used to create brilliant visual effects such as very deep or sparkling colors, pearlescent effects. MBS is an optimal choice for exclusive and design - oriented applications. |  | ||||||||
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| Properties MBS | |||||||||
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| MBS physical and mechanical properties | |||||||||
Methyl methacrylate styrene, MBS resins as an alternative to acrylic resins, low density, low moisture absorption and good moldability. MBS resins with a good balance of transparency, strength and fluidity. You can not compete with the impact resistance of PC and resistance to high temperature heat. However MBS can overcome polystyrene, SAN and PMMA for impact strength and distortion temperatures have similar heat. It has excellent processability and high impact resistance and excellent scratch resistance and coloring property originated from PMMA. |  | ||||||||
| MBS Thermal properties | |||||||||
Similar level of heat distortion temperatures such as PMMA, stable property during the injection process. Acrylic copolymers modified light impact styrene elastomer MBS offer practical toughness, excellent clarity and superior processing on competitive materials like polycarbonate and copolyesters. In tests spiral flow, the MBS resins polymer flow the same distance as the polycarbonate at significantly lower temperatures. This leads to higher productivity, lower energy consumption and less stress molded. |  | ||||||||
| MBS Electrical properties | |||||||||
| Being a slightly polar material, with a high TG and low water absorption, the electrical properties are hardly affected by the temperature variation, frequency (up to 106 Hz) and humidity within normal working ranges. |  | ||||||||
| MBS Optical properties | |||||||||
MBS is a polymer of methyl methacrylate butadiene styrene, created by modifying an acrylic styrene SMMA with an impact modifier SBC. Matching precision of the refractive indices of the two components of the MBS polymers impregnated multiphase high optical clarity with an exceptionally high level of transparency , excellent stiffness and toughness demanding very good flowability for injection molded parts. MBS pellets offer excellent transparency, optical property like polycarbonate, adjustable optical property as the fusion of materials can be used to create particularly brilliant visual effects such as deep colors, pearly or sparkle effects and can be injected. |  | ||||||||
| MBS Chemical properties | |||||||||
Generally good but depends on the degree of the resin, chemical concentration, temperature and stress on the parts. They are generally not affected by water, inorganic salts, alkalis and many acids. They are soluble in esters, acetone, aldehydes and some chlorinated hydrocarbons. Not degrade oils are recommended for bearings operating under moderate loads and speeds. S and also characterized by high chemical stability and high resistance to stress cracking. sterilizable. MBS can undergo sterilization by radiation methods of electron beam or gamma rays without limiting the discoloration of the material. MBS granules resists yellowing caused by sterilization methods of high energy.It retains its properties after undergoing methods gaseous sterilization such as ethylene oxide and nitrogen oxide. MBS offers good resistance to lipids and alcohol and bonds well with various pipe materials, making it an excellent choice for system applications IV. |  | ||||||||
| MBS vs PC | |||||||||
Methyl methacrylate butadiene styrene is also known as methyl methacrylate styrene impact modified (SMMA). This polymer has excellent clarity, high rigidity, high impact performance and easy processability. The medical and diagnostic devices are usually made with polymers such as polyvinyl chloride (PVC), polycarbonate (PC), polyethylene terephthalate (PET), polyethylene terephthalate glycol (PETG), Some of these polymersThey are used because they meet certain basic requirements required for various applications as impact performance, clarity, chemical resistance and / or heat resistance. The products can have a benefit in terms of one physical or chemical attribute, which may be offset by a deficiency in another area, for example, a product can provide excellent clarity and toughness, but may be dibajo of impato or may provide good chemical resistance but low thermal resistance. Polycarbonate can overcome MBS both impact resistance and high temperature performance but MBS scores well for stress cracking resistance and processability with good flow in the melt. |  | ||||||||
| MBS Processability | |||||||||
MBS elastomer can be easily molded by injection, extrusion or rotation using the system. Has a higher melt volume flow rate, this excellent fluidity facilitates transformation of the material in multiple molds, multi-cavity, and allows complex components produced particularly economically transparent. SBC may be most machines conventional injection molding. It can be processed at temperatures ranging between 195 to 235 ° C. However, the main benefits of optical clarity and impact resistance may be decreased as it processes the temperatures are increased Thermal degradation can be caused by high melting temperatures for prolonged residence time in the molding machine or molds distribution system. Molded parts, the resin thermally degraded appears as high haze, low clarity, silver stripes, black spots or poor surface finish, as "separation marks". To minimize degradation temperature, the material must be plasticized evenly with minimum heat. Because not absorb moisture, MBS elastomer generally does not require drying. However, they can retain sufficient surface moisture to require drying when stored in open containers under wet conditions.To avoid degradation of the resin, crushing the flakes should be carefully dried. The drying temperatures must be kept as short as possible to 60 ° C an hour. Or excessive drying temperatures should not be permitted even if the resin does not degrade, the surface may be softened enough to adhere to other granules, thus interrupting the supply of resin injection. Mold temperature It can be used a wide range of mold temperatures in molding SBC. Mold temperatures below 10 ° C and above 65 ° C may affect the clarity of fabricated parts. Higher mold temperatures maximize surface gloss and detail reproduction mold. The lower mold temperatures maximize the impact resistance and reduce the cycle time. Degree of contraction The degree of contraction of a real piece depends on both designs and processing variables. As with most resins, the thick sections shrink m ore than thin sections. When the copolymer is highly oriented during injection, it shrinks more in the direction of flow in the transverse direction. Some other design features of molds and can also affect the ability to control shrinkage. |   | ||||||||
| Polimerization MBS - Compound | |||||||||
In general, these polymers have a special architecture blocks created by combining SBC SMMA polymers and polymers in a single compounding step. MBS is a methylmethacrylate butadiene styrene polymer, a clear and resistant material created by modifying a styrene acrylic copolymer (SMMA) with an impact modifier. It is also known as an MBS or terpolymer, or a copolymer impact modified. Also they can be mixed in lcompound. Both materials are transparent and can be easily colored by adding liquid concentrates or colors. |  | ||||||||
| MBS Applications | |||||||||
Continuously new applications for transparent and resistant polymers based on styrene butadiene methacrylate (MBS) in segments of high - growth market, for example parts of the transparent casing impact arising p ara domestic and screens and transparent panels for fitness equipment vacuum. Applications MBS materials in medical technology and packaging quality consumer goods are well established, but has not yet been exhausted. Due to its technical properties and unique optical, the thermoplastic MBS can be used in many applications, but particularly in the area of consumer goods; aspirators, water containers, housewares and appliances, housings, toys, gardening, various consumer goods, medical components, boxes lipstick, and lectrodomésticos and consumer goods , to ccesories Office v iviendas and covers industrial, v asos reusable, cosmetic containers, for example caps, medical devices, sanitary housings, appliances, eg. housings for vacuum cleaners, shaving systems, transparent toys, pens (clips).Electrical and electronic materials, frames and panels, is taking the lead in the market for scratch resistance materials for housing TV. Its superior surface quality makes it suitable for external parts, are just some of the applications that our customers can produce with MBS. Meanwhile it is also possible to replace many applications of polycarbonate with MBS. MBS product line ranges from thermoplastic high - strength brands have sufficient scratch resistance for visualization and outlets for very resistant and soft materials products for medical devices such as dialyzers accommodations in medical technology.Production of hollow blow molded articles, transparent variant cans PE established. |  | ||||||||