How to identify plastic materials
1 . PP===Fast Polypropylene, Polypropylene
Lightweight and tough, easy processing, good heat resistance, high impact strength at room temperature, high tensile strength, good rigidity, corrosion, difficult to paint, bending up to millions of times, excellent electrical properties, high shrinkage. PP.PE.PA is soft and bendable, with hard wax-like touch, creamy feel, and soft horny sound, while PS.ABS.PC.PMMA is non-ductile and percussion sound is crisp. PE is generally the same, there may be a small amount of black pods, after the flame is extinguished, it smells like kerosene like petroleum, no toxicity.
2. LDPE===soft rubber, high pressure low density polyethylene
HDPE===hard soft rubber, low pressure high density polyethylene
VHDPE===Superhard soft rubber, Ultrahigh-pressure polyethylene
Light and tough. Easy to process, good heat resistance, good low temperature toughness, hard, impervious, but good grind, PE is flammable, can still burn after leaving fire, yellow and blue on the flame when burning, very little black Near the flame, the plastic has molten dripping phenomenon, similar to the flow of candles, after the flame is extinguished, there is a more obvious burning smell of paraffin, non-toxic PE.pp proportion is less than water, floating in water. Most other plastics have a greater proportion Water, sinking in water.
3 . PC=== Bulletproof Adhesive, Polycarbonate
Colorless, transparent, impact strength is the first plastic, excellent electrical properties, anti-aging, small shrinkage, product size is stable, PC combustion phenomenon close to the PS but the burning speed is slow, after the fire will be slow extinguishing, the flame is yellow, with black The charcoal beam, which melts and blisters when combusted, extinguishes the fruit and fruit odor.
4 . PMMA===Perspex (Acrylic), Polymethyl Methacrylate
Excellent transparency, can be dyed into a variety of colors, crisp, easy to crack, poor surface hardness, easy to wipe flowers, good leakage resistance. PMMA and PS primary colors are transparent, but different combustion conditions, PMMA no charcoal fly, and PS, PMMA flame when burning light blue, white top, burning bubble when burning, emitting a strong flower and fruit odor and rot vegetable odor, Huiyin.
5. PS===Hard glue (ordinary hard glue), Polystyrene, Transparent brittle crack
HIPS===non-shastic, modified polystyrene, elasticity, toughness and high impact strength
ABS===ABS glue, super shatterproof rubber, acrylonitrile-butadiene-styrene, easy electroplating, high strength, impact resistance, cold, grinding, corrosion.
SAN(AS)===Transparent and non-shattering, styrene-acrylic copolymer
EPS===Styrofoam, Expanded Polystyrene
PS primary color is transparent, HIPS primary color is milky white, ABS primary color is light ivory color.
PS.HIPS.ABS difference is mainly: PS is more brittle, HIPS and ABS toughness is better. When bending the sample, PS is very easy to embrittlement, HIPS and ABS is very difficult to break, bent part of the white. PS primary color is Transparent color, HIPS primary color is milky white, ABS is light tooth color. PS.HIPS. and ABS are flammable, can continue to burn after taking away the fire source, the flame is yellow, and there is a thick black charcoal beam, with helium Yi, PS char bundle slightly less, burning, near the flame at the plastic surface softening and not easy to drop, PS and HIPS surface will blistering, ABS is not foaming and coking state, the smell of these plastics when extinguished The difference is very large, PS monomer smell of styrene, ABS emits a pungent odor, there is a certain toxicity. Cosmetics plastic tube
1 . PP===Fast Polypropylene, Polypropylene
Lightweight and tough, easy processing, good heat resistance, high impact strength at room temperature, high tensile strength, good rigidity, corrosion, difficult to paint, bending up to millions of times, excellent electrical properties, high shrinkage. PP.PE.PA is soft and bendable, with hard wax-like touch, creamy feel, and soft horny sound, while PS.ABS.PC.PMMA is non-ductile and percussion sound is crisp. PE is generally the same, there may be a small amount of black pods, after the flame is extinguished, it smells like kerosene like petroleum, no toxicity.
2. LDPE===soft rubber, high pressure low density polyethylene
HDPE===hard soft rubber, low pressure high density polyethylene
VHDPE===Superhard soft rubber, Ultrahigh-pressure polyethylene
Light and tough. Easy to process, good heat resistance, good low temperature toughness, hard, impervious, but good grind, PE is flammable, can still burn after leaving fire, yellow and blue on the flame when burning, very little black Near the flame, the plastic has molten dripping phenomenon, similar to the flow of candles, after the flame is extinguished, there is a more obvious burning smell of paraffin, non-toxic PE.pp proportion is less than water, floating in water. Most other plastics have a greater proportion Water, sinking in water.
3 . PC=== Bulletproof Adhesive, Polycarbonate
Colorless, transparent, impact strength is the first plastic, excellent electrical properties, anti-aging, small shrinkage, product size is stable, PC combustion phenomenon close to the PS but the burning speed is slow, after the fire will be slow extinguishing, the flame is yellow, with black The charcoal beam, which melts and blisters when combusted, extinguishes the fruit and fruit odor.
4 . PMMA===Perspex (Acrylic), Polymethyl Methacrylate
Excellent transparency, can be dyed into a variety of colors, crisp, easy to crack, poor surface hardness, easy to wipe flowers, good leakage resistance. PMMA and PS primary colors are transparent, but different combustion conditions, PMMA no charcoal fly, and PS, PMMA flame when burning light blue, white top, burning bubble when burning, emitting a strong flower and fruit odor and rot vegetable odor, Huiyin.
5. PS===Hard glue (ordinary hard glue), Polystyrene, Transparent brittle crack
HIPS===non-shastic, modified polystyrene, elasticity, toughness and high impact strength
ABS===ABS glue, super shatterproof rubber, acrylonitrile-butadiene-styrene, easy electroplating, high strength, impact resistance, cold, grinding, corrosion.
SAN(AS)===Transparent and non-shattering, styrene-acrylic copolymer
EPS===Styrofoam, Expanded Polystyrene
PS primary color is transparent, HIPS primary color is milky white, ABS primary color is light ivory color.
PS.HIPS.ABS difference is mainly: PS is more brittle, HIPS and ABS toughness is better. When bending the sample, PS is very easy to embrittlement, HIPS and ABS is very difficult to break, bent part of the white. PS primary color is Transparent color, HIPS primary color is milky white, ABS is light tooth color. PS.HIPS. and ABS are flammable, can continue to burn after taking away the fire source, the flame is yellow, and there is a thick black charcoal beam, with helium Yi, PS char bundle slightly less, burning, near the flame at the plastic surface softening and not easy to drop, PS and HIPS surface will blistering, ABS is not foaming and coking state, the smell of these plastics when extinguished The difference is very large, PS monomer smell of styrene, ABS emits a pungent odor, there is a certain toxicity. Cosmetics plastic tube
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