General Purpose Polystyrene (GPPS)

General Purpose Polystyrene (GPPS)

High Impact Polystyrene (HIPS)

 

Polystyrene is a synthetic aromatic hydrocarbon polymer made from the monomer styrene.

And High Impact Polystyrene (HIPS) is a versatile, economical and impact-resistant plastic that is easy to machine and fabricate. It is frequently used machining pre-production prototypes since it has excellent dimensional stability and is easy to fabricate, paint, and glue. HIPS is often specified for low strength structural applications when impact resistance, mach inability, and low cost are required.

Application Area:

Food container, appliance components, toy, TV , audio-visual equipment parts, recording tape cassettes, bicycle trailer, toys, Instrument panels , fittings, gasoline tanks, hot, cold drinking cups and computer Housings etc.

Properties:

Tensile Strength 2.20 - 2.70 N/mm²
Notched Impact Strength 10.0 - 20.0 Kj/m²
Thermal Coefficient of expansion 80 x 10-6
Max Cont Use Temp 60 – 80 C
Density 1.03 - 1.06 g/cm3
Specific Gravity - 1.04g/cm

Tensile Strength - 3130 psi

Flexural Strength - 4620 psi

Impact Strength - 2.20ft.-lb/in

Maintains strength in high-impact applications

Can be painted

Recyclable with good property retention

Easily moldable

FDA compliant grades

Good dimensional stability

Good gloss

Low volatility

Processing:

Injection Molding

Extrusion

Polystyrene

Polystyrene

Polystyrene is slow to biodegrade and is therefore a focus of controversy among environmentalists. It is a synthetic aromatic hydrocarbon polymer made from the monomer styrene. Polystyrene can be naturally transparent, but can be colored with colorants and can be solid or foamed. General-purpose polystyrene is clear, hard, and rather brittle. It is an inexpensive resin per unit weight. It has low melting point and poor barrier to oxygen and water vapor. It is one of the most widely used plastics. The scale of its production being several million tons per year.  As a thermoplastic polymer, polystyrene is in a solid (glassy) state at room temperature but flows if heated above about 100 °C, its glass transition temperature. It becomes rigid again when cooled. This temperature behavior is exploited for extrusion (as in Styrofoam) and also for molding and vacuum forming, since it can be cast into molds with fine detail. Yoghurt pots, refrigerator linings, vending cups, bathroom cabinets, toilet seats and tanks, closures, instrument control knobs, protective packaging (such as packing peanuts and CD and DVD cases), containers, lids, bottles, trays, tumblers, disposable cutlery and in the making of models. It is increasingly abundant as a form of litter in the outdoor environment, particularly along shores and waterways, especially in its foam form, and also in increasing quantities in the Pacific Ocean.

Chemical Formula of polystyrene is (C₈H₈)_n  and IUPAC name is Poly(1-phenylethene).

Density: 0.96–1.04 g/cm³

Melting Point: ~ 240 °C (464 °F; 513 K) For Isotactic Polystyrene

Solubility in water is insoluble and Solubility in acetone is soluble.

Thermal conductivity :  0.033 W/(m·K) (foam, ρ 0.05 g/cm³)

Refractive Index(n_D): 1.6; dielectric constant 2.6 (1 kHz – 1 GHz)

Related Compound: Styrene

Polymethyl Methacrylate (PMMA) Resin

Polymethyl Methacrylate (PMMA) Resin

Introduction:

PMMA resin is a mature product and also known as acrylic or acrailic glass as well as by the trade names Crylux, Plexiglas, Acrylite, Lucite and Perspex. It has excellent weather resist and heat resist character and excellent transparency and gloss. Besides, it has stable physical, chemical,
optical, and electrical,etc., characters. It may be widely applied on electronic panel,
mechanical parts,watch and lock shell, motorcycle and automobile indicator, electrical communication material, insulation parts and sun glasses.

Property:

Property item		Test condition	Test method	Test number	units
Basic properties	hardness		ASTM D-785	M-95
	Bulk Density		ASTM D-1182	0.77	gm/cm3
	Water Absorption		ASTM D-570	0.3	%
Physical properties	Specific Gravity		ASTM D-792	1.19
	Light transmission		ASTM D-1003	92	%
	Melt Flow Index		ASTM D-1238	1.8	gm/10min
	Flammability			1/16"HB	UL-94
	Mould Shrinkage		ASTM D-955	0.002-0.006	mm/mm
Mechanical properties	Impact Notched IZOD		ASTM D-256	2.0	kg-cm/cm
	Tensile Strength		ASTM D-638/PSI	10200/720	Kg/cm2
	Flexural Strength		ASTM D-790/PSI	15600/1100	Kg/cm2
	Tensile Elongation		ASTM D-638	5.0	%
	Refractive index		ASTM D-542	1.491
	Dielectric strength		ASTM D-149	500	Volts/Mil
	Impact notched IZOD		ASTM D-256	0.37	ft-lbs/in2
Electrical Properties	Volume Resistivity		ASTM D-257	1015	Ω.m
	Loss Factor		ASTM D-150	0.19
	Dielectric Constant		ASTM D-150-647b	3.7
	Power Factor		ASTM D-150-647	0.5
Thermal Properties	Heat Distortion Temp		ASTM D-648	100/212	°C/°F
	Vicat Softening Point		ASTM D-648	113/235	°C/°F

Virgin PMMA Resin(Polymethyl Methacrylate)

PMMA Resin(Polymethyl Methacrylate)

virgin/recycled PMMA Resin

PMMA Resin(Polymethyl Methacrylate)

Transparent thermoplastic granule

Virgin & Recycled

resistance to flammability

Quick Details

Place of Origin:  Shandong, China

Brand Name:  Sinopac

Model Number:  PMMA

PMMA virgin:  white transparent

PMMA RECYCLE:  BLACK

Supply Ability:  2000 Metric Ton/Metric Tons per Month

Packaging & Delivery Packaging Details:  25 kg bag 20MT/20'FCL

Port:  xingang tianjin

Lead Time :  within 5 days

Application:

Transparent glass substitute

Daylight redirection

Medical technologies and implants

Artistic and aesthetic uses

Other use.

Advantages: 

Unparalleled Transparency and Luster 

Excellent Weather Resistance 

Unmatched Surface Hardness
Excellent Electrical Resistance
Superior Mechanical Property
Harmless to Humans