China GPPS Chemical GPPS Granule Plastic

Product Description
GPPS(General purpose polystyrene)General-purpose polystyrene is a thermoplastic resin that is a colorless, odorless, odorless, shiny, transparent beaded or granulated solid. The density is 1.04~1.09, the transparency is 88%~92%, and the refractive index is 1.59~1.60. Under the action of stress, birefringence is produced, the so-called stress-optical effect. The melting temperature of the product is 150~180°C, the thermal decomposition temperature is 300°C, the heat distortion temperature is 70~100°C, and the long-term use temperature is 60~80°C.Advantages
It is soluble in aromatic hydrocarbons, chlorinated hydrocarbons, aliphatic ketones and esters, but only swells in acetone. Low water absorption, optical performance is second only to acrylic resin. Excellent electrical properties, high volume resistivity and surface resistivity, independent of temperature and humidity changes, and not affected by corona discharge. Radiation resistance is also very goodDisadvantages
Its main disadvantages are brittle and fragile, low impact strength, poor heat resistance, inability to withstand boiling water, and can only be used at lower temperatures and lower loads. Low sunlight resistance and flammable. Black smoke when burning, and has a special odor.ParametersItemTest conditionsTest methodTest dataDensityISO 1183:19871040kg/m3Water absorptionISO 62:1999Electronic Tube & Transistor <0.1%Melt flow rate200°C/5kgISO 1133:19973.8cm3/10miProcess shrinkageISmart Card & Card Reader SO 294-4:19971eUCharpy impact strength1eUISO 179:199315kj/m2Tensile modulus1mm/minISO 527-2:19933300MPaElongation50mm/minISO 527-2:19933%Other Equipment & Components Tensile strength at break50mm/minISO 527-2:199355MPaBall indentation hardness H358N/30sISO 2039-1:1993150N/mm2HDT1.8MPaISO 75-2:199384°CBending strength2mm/minISO 178:1993100MPaLinear coefficient of thermal(23-80)°CDIN 53 7520.8-1.0K-1Heat conductionDIN 52 6120.16W/mKVicat softening pointB50/oilISO 306:199493°CFlame retardance>1.4mmUL-Standard 9494HBClassDetailed ImagesPacking & Delivery
Packing:
25KG/PP BAG
50KG/PP BAG OR AS YOUR REQUESTSDelivery:
Generally , the goods is transported by sea , for sample, the transportations are DHL ,FedEx and Shunfeng etc.
ApplicationFood packing.
Due to the transparency of GPPS and excellent rigidity, electrical properties and printing performance, especially good hygiene and low cost, it has broad application prospects in food packaging.Electromechanical industry, instrumentation, communication equipment industry.Hydraulic Tool
Instrument housing, lampshade, optical parts, instrument parts;Acid trough, telecommunications parts, high frequency capacitors,etc.Daily necessities.
Bottle caps, containers, decorations, buttons, combs, toothbrushes, soap boxes, cigarette boxes and toys,etc.FAQ
Q1.Are you manufacturer or trading company ?
We are manufacturer of GPPS .Q2.How long is your delivery time ?
Generally ,it 's 7-15 days.Q3.What's your terms of payment ?
We can accept T/T ,L/C at sight ,Westen Union ,Moneygram and cash .Q4. Do you provide free samples? or extra charge ?
For samples , it is free, you only pay the freight of them .Q5. What is your MOQ ?
It is 5 tons for GPPS.
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