BMC Motor Accessories Flow Characteristics And Excellent Insulation And Flame Resistance

Is the abbreviation of Bulk (Dough) molding compounds, that is, BMC Motor Accessories Motor Accessories. Domestic often known as unsaturated polyester molding compound. The main raw material from the GF (chopped glass fiber), UP (unsaturated resin), MD (filler) and a variety of additives by the full mixing of the mass-like prepreg. BMC Motor Accessories material in the 1960s in the former West Germany and the United Kingdom, first applied, and then in the 1970s and 80s, respectively, in the United States and Japan have been a greater development. BMC Motor Accessories cluster molding compound with excellent electrical properties, mechanical properties, heat resistance, chemical resistance, but also to adapt to a variety of molding process, you can meet the performance requirements of various products, so more and more users favorite.

Grouped molding compound (BMC Motor Accessories) is a thermosetting plastic in which various inert fillers, fiber reinforcements, catalysts, stabilizers and pigments are mixed to form an adhesive "greasy" composite material for compression molding or injection molding The The bulk molding compound (BMC Motor Accessories) is highly filled and reinforced by short fibers, with glass fiber reinforcements between 10% and 30% and typically between 1/32 and 1/2 inch (12.5 mm) in length.

According to the different final application areas, the preparation of composite materials can be precisely controlled size, good flame resistance and resistance to electric marks, with high dielectric strength, corrosion resistance and stain resistance, excellent mechanical properties, low shrinkage Color stability. The flow characteristics of the molded polymer (BMC Motor Accessories) are excellent in insulation and flame retardancy, and are ideal for a wide range of applications where details and dimensions are required. The material has 75 colors to choose from, can withstand powder coating or water-based paint.

Nature: chopped glass fiber and unsaturated polyester paste mixed with the group of prepreg. It is suitable for molding by molding, transfer molding, injection molding and so on. The obtained products have good mechanical properties, high dimensional stability, good surface finish, water resistance, oil resistance, excellent corrosion resistance and good heat resistance and electrical properties. Arc resistance can reach about 190s. According to the formula dubbed resin paste, the main component with the sheet molding compound, filler increased, generally without thickener, and then resin slurry and chopped glass fiber (length of about 3 ~ 25mm) fully mixed in the system. Mainly used in electrical appliances, motors, radio, instrumentation, machinery manufacturing, chemical equipment, construction, transportation, defense and other departments.

⒈ general performance: BMC Motor Accessories (DMC) the proportion of the larger, between 1.3 to 2.1; product appearance bright, feel good, hard and heavy feeling; with fire will produce a lot of fumes, and styrene smell; some Varieties of BMC Motor Accessories (DMC) are flammable, but some varieties are very easy to burn, leaving inorganic substances after burning.

⒉ dimensional stability: BMC Motor Accessories (DMC) linear expansion coefficient (1.3 ~ 3.5) × 10-5K-1, smaller than the average thermoplastic, which makes BMC Motor Accessories (DMC) has a high dimensional stability and dimensional accuracy. The effect of temperature on the dimensional stability of BMC Motor Accessories (DMC) is very small, but the effect of humidity is more serious, BMC Motor Accessories will expand after moisture absorption. BMC Motor Accessories (DMC) linear expansion coefficient and steel, aluminum is very close, so it can be combined.

⒊ mechanical strength: BMC Motor Accessories (DMC) tensile, bending, impact strength and other properties than thermoplastic, creep resistance than thermoplastic.

⒋ water and solvent: BMC Motor Accessories (DMC) on water, ethanol, aliphatic hydrocarbons, grease, oil has good corrosion resistance, but not ketone, chlorinated hydrocarbons, aromatic hydrocarbons, acid and so on. BMC Motor Accessories (DMC) water absorption is low, soaking insulation after a day is still very good.

⒌ heat resistance: BMC Motor Accessories heat resistance than the general engineering plastics are good, heat distortion temperature HDT 200 ~ 280 ℃, long-term use at 130 ℃ temperature.

⒍ Aging resistance: BMC Motor Accessories anti-aging performance is very good, available in the room 15 to 20 years, outdoor exposure 10 years after its strength retention rate of 60% or more.

⒎ electrical performance: BMC Motor Accessories arc resistance of the most prominent, can reach about 190 seconds.

⒏ low odor: BMC Motor Accessories styrene crosslinking agent used in the curing will still have 0.1% residual, heating will be issued when the smell. Therefore, BMC Motor Accessories for food utensils (such as microwave utensils) should be used without residual styrene monomer type UP resin.