Virgin Polystyrene Resin

General plastics are divided into hips, eps, gpps.
hips is opaque white bead-like or bead-like thermoplastic resin, characterized by high impact, the impact strength of more than 7 times for the gpps. Have excellent coloring and molding process, but its tensile strength, hardness, transmittance, optical resistance, weather resistance and thermal stability than gpps poor.
application:
1. Electrical appliances: televisions, tape recorders of the shell and components, refrigerators lining materials, air-conditioning, washing machines, telephones, vacuum cleaners, lighting fixtures and office machinery parts.
2. Automotive parts and medical equipment parts
3. Toys, furniture, and daily living products
4. Packing materials.
gpps is a thermoplastic resin, is a colorless, odorless, tasteless and shiny, transparent beads or granular solid. The impact of intolerance, easy to crack, processing prone to flash, poor heat resistance, optical activity were poor day, flammable. Liquidity, forming resistance.
application:
1. Food packaging.
2. Electrical industrial, instrumentation, communications equipment industry and other various instruments has been widely used as a shell, lamp, optical parts, equipment parts, transparent windows mirror, transparent model, acid, chemical storage tank, acid tank transport, telecommunications components, high frequency capacitors, high frequency insulation pads, brackets, inserts and frozen insulating materials.
3. All kinds of daily necessities. Toys.
eps expandable polystryrene
appearance: colorless translucent granule
proportion: 1.03, bulk specifi weight is about 0.6
main components:
polystyrene --- 93% -94%
foaming agent (c4, c5, c6) --- 6% -7%
moisture content
flame oxygen index >= 30
flame retardant grade also contain flame retardant agent (halogen compounds, mainly bromides), not containing cfc and ods
characteristics:
foaming: eps are heated to above 90 c, granule softening, foaming agent vaporization makes the volume expand 40-80 times. Our company supplies eps, more speed, high magnification, save steam. Meltbility: the eps foam granules or particles, when heated to above 110 c, beads or foam particles melting adhesive. The forming temperature is low, so it is easier to combine
application:
eps is a new filler material, it can be filled in toys, soft fabric home, cushion products, flexible and beautiful smooth features, also used in building insulation wall as thermal insulation.
item experimental condition test method test date test unit
mfr 200degree /5kg iso 1133/1997 4.8 g/10min
density --- iso 1183/1987 1030 kg/m 3
izod notch impact strength --- iso 180/1993 125 j/m
impact strength of cantilever beam --- iso 180/1993 1150 j/m
tensile yield strength --- iso 527-2/1993 25 mpa
elongation 50mm/min iso 527-2/1993 50 %
flexural modulus 2mm/min iso 178/1993 1700 mpa
heat distortion temperature 1.82mpa iso 75-2/1993 80 degree
vicat softening point b50/oil iso 306/1994 90 degree
vicat softening point b50/oil iso 306/1994 1030 degree