Product Details

Specifications

GPPS General Purpose Polystyrene -Injection grade
1.Competitive price, good quality
2. Fress samples
3. ISO, SGS, BV

GPPS General Purpose Polystyrene -Injection grade

1. Physical and Chemical Properties

Appearance :Clear pellets

Solubility in water: Insoluble

Usage: Common commercial polymer.

2. Introduction of GPPS:

General Purpose Polystyrene is a kind of thermoplastic resin, is a colorless, odorless, tasteless, shiny, transparent beaded or granular solid. Density is 1.04 to 1.09, transparency is 88% to 92%, refractive index is 1.59 to 1.60. In the stress function, resulting in birefringence, the so-called stress - optical effect. Product of the melting temperature is 150 to 180 ° C, thermal decomposition temperature is 300 ° C, the heat distortion temperature is 70 to 100 ° C, long-term use temperature is 60 ~ 80 °C.

3. Technical data:

Item	Test conditions	Test method	Test data	unit
Density		ISO 1183:1987.	1040	kg/m3
Water absorption		ISO 62:1999	<0.1	%
Melt flow rate	200°C/5kg	ISO 1133:1997	3.8	cm3/10min
Process shrinkage		ISO 294-4:1997	0.4-0.6	%
Charpy impact strength	1eU	ISO 179:1993	15	kj/m2
Tensile modulus	1mm/min	ISO 527-2:1993	3300	MPa
Elongation	50mm/min	ISO 527-2:1993	3	%
Tensile strength at break	50mm/min	ISO 527-2:1993	55	MPa
Ball indentation hardness H	358N/30s	ISO 2039-1:1993	150	N/mm2
Bending strength	2mm/min	ISO 178:1993	100	MPa
HDT	1.8MPa	ISO 75-2:1993	84	°C
Linear coefficient of thermal expansion	(23-80)°C	DIN 53 752	0.8-1.0	K-1
Heat conduction		DIN 52 612	0.16	W/mK
Vicat softening point	B50/oil	ISO 306:1994	93.	°C
Flame retardance./	>1.4mm	UL-Standard 94	94HB	Class

Item	Testing standards	Test Conditions	Units	PG-22	PG-33	PG-80	PG-80N	PG-383	PG-383M
Melt flow index	D-1238	200°C*5kg	g/10min.	17.5	7.4	4.0	5.7	3.0	3.0
Softening point	D-1525	1kg.	°C	87.0	94.0	97.7	97.6	105.0	96.3
Tensile strength	D-638		Kg/cm²	420	470	500	490	560	520
Tensile modulus	D-638	-		26460	26220	26720	26720	28140	-
Bending strength	D-790	-	Kg/cm²	540	670	690	690	820	-
Flexural modulus	D-790		Kg/cm²	31000	31000	31000	31000	33000	-
Heat distortion temperature	D-648	-	°C	75	79	81	81	86	-
Use	-	-	-	Mixed leveling	Injection level	Injection level	Injection level	Board-level charge	Injection level

4. Application:

1.Food packaging, drink cup, egg box, extrusion package materials, medical articles, vegetable box in refrigerator Sheet, Cups, Containers, Bottle Cap, Comb, Toothbrush, Soapbox.

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, such as Plastic Cutlery, Toys, vs

5. Handling and Storage:

[Storage]

Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.

[Handling]

Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation.

6. Package:

25kg/ pp woven bag or 1000kgs / woven bag, 20MTs for 20’ft container without pallets.