Flame retardant PP board refers to PP plastic with flame retardant, and can pass ROHS testing, does not contain lead, chromium, mercury and other six heavy metals. Polypropylene is non-toxic, odorless, tasteless milky white high crystal polymer, density is only 0.90 –” 0.91g /cm3, is one of the lighter varieties of all plastics. Flame retardant PP board is particularly stable to water, water absorption rate is only 0. 01%, molecular weight of about 8 thousand 150 thousand.
Characteristics of flame retardant PP board
Flame retardant PP board has the characteristics of non-flammable, self-extinguishing and high temperature resistance. Flame retardant plate, also known as flame retardant, flame retardant, flame retardant plywood board such as plywood, rotary cutting is made into wood or by wood square plane cut into small pieces of wood square of wood fire-retardant treatment with adhesive glue together again after three layer or multilayer plywood, usually with an odd number of layers of wood, and make the adjacent layer of wood fiber direction perpendicular agglutination.
1, flame retardant PP board corrosion resistance.
2, flame retardant PP board impact resistance: flame retardant PP board its raw material polypropylene impact resistance in the first plastic.
3, flame retardant PP board aging resistance: flame retardant PP board quality stability, good aging resistance, ground, underground can be buried, 50 years of aging.
4 flame retardant PP board health non-toxic: flame retardant PP board raw material polypropylene tasteless, non-toxic, odorless, itself non-corrosive, very environmental health.
Application of flame retardant PP board
At present, flame retardant PP board has been widely used in chemical industry, machinery manufacturing, electronic equipment manufacturing, automobile manufacturing, mining, communication engineering, power construction and other fields.
Flame retardant PP board flame retardant grade
At present, there are many methods to evaluate flame retardancy, such as oxygen index determination, horizontal or vertical combustion test, etc. The flame retardant grade of plastics increases step by step from HB, V-2, V-1 to V-0:
1, HB: the lowest flame retardant grade in UL94 standard. Requires a combustion rate of less than 40 mm per minute for samples 3 to 13 mm thick; For samples less than 3 mm thick, combustion rate less than 70 mm per minute; Or go out at the 100mm sign.
2, V-2: after two 10-second combustion tests on the sample, the flame will be extinguished within 60 seconds. You can have combustion falling down.
3, V-1: after two 10-second combustion tests on the sample, the flame will be extinguished within 60 seconds. No incendiary material can fall.
4, V-0: after two 10-second combustion tests on the sample, the flame will be extinguished within 30 seconds. No incendiary material can fall.
Post time: May-31-2022