Xyron modified from PPE, Xyron™ resins are engineering resins, composed of polyphenylene ether (PPE) modified by polystyrene (PS), polyamide (PA), or other polymeric materials.

PS-modified Xyron™ has an amorphouse molecular structure that provides excellent heat resistance, dimensional stability, and mechanical properties. It also exhibits outstanding superiority in flame retardancy (free from halogens), electrical properties, hot-water resistance, and reworkability.

PA-modified Xyron™ grades provide special heat resistance and oil resistance, in addition to the properties of PS-modified Xyron™ grades.

Health and Safety
Combustibility
Xyron is combustible and must be kept strictly away from heat, sparks, and flame during handing and storage. Xyron may emit toxic gases during combustion. Extinguish with water, or with foam or powder chemical extinguisher.

Disposal
Dispose of Xyron by landfill burial or by incineration in a properly equipped facility, in accordance with relevant laws and regulations. Xyron may emit carbon monoxide and other toxic gasses during incineration.

Storing
Keep Xyron strictly away from direct sunlight, water, high humidity, and moisture.

Key Use

• Body panels
• Mirror shells
• Fuel door covers
• Hinge covers
• Relay blocks
• Door handles
• Fuse carriers
• Fuse box covers
• Interior electrical outlets
• Interior plugs/switches
• Interior high precesion parts
• casing for printer, mechanical device on printer
• casing for tray, casing for DVD, CD
• Do not use Xyron for food packaging applications.
• Do not use Xyron for medical devices designed or intended for intracorporeal implantation or contact, whether direct or indirect, with bodily fluids.

Mechanical , Electrical Properties
click on  link for detail properties, 
Non Reinforced ISO Properties
Non Reinforced ASTM Properties

Reinforced ISO Properties
Reinforced ASTM Properties

Resin GroupXyron PS/PPE	Key Attributes Wide range of heat resistance Low specific gravity Low water absorption	Typical Applications Pool & spa parts Impellers Valve Bodies
Xyron PA/PPE	High resistance to hot water Superiority in flame retardant (non-halogen) Excellent Dimensional stability	Electrical boxes Fuse box parts Body panels
Xyron PP/PPE	High resistance to acids and alkalis Excellent electrical properties	Mirror shells Fuel Door covers
Xyron PPS/PPE		Junction box Battery Cases Tractor hoods Motorcycle fairings Relay blocks

Molding

Pre-drying
Modified PPE has the lowest moisture absorption of any engineering plastic and displays excellent hydrolysis resistance. To help ensure against surface appearance faults such as silver streaks, it is nonetheless good practice to pre-dry the material. For applications where surface appearance is critical, always be sure to pre-dry the material. When using a PPE/PA grade, pre-drying is especially important due to the high moisture absorption properties of PA.

Pre-drying should be done at the proper temperature range specified for each grade. A closed loop dehumidifying/drying hopper system is the most efficient equipment for pre-drying Xyron. When using hot-air circulating ovens, Xyron pellets will be efficiently pre-dried when spread out in trays at a uniform depth of 20 to 30 mm.

Take care to ensure that Xyron is not pre-dried for longer than 8 hours. Excessive pre-drying may result in degradation of physical properties and color changes.

Regrind
Properly molded Xyron (sprues, runners, molded articles, etc.) may be reground, dried, and remolded without adverse effects. It is essential that material to be reground be free from oil, grease, dirt, and foreign substances, and shows no signs of degradation. Regrind levels up to 20% can be used successfully, but it is not advisable to use reground material for applications where surface appearances are critical.

Purging
High viscosity GPPS and Asaclean SA™ (available from Asahi Kasei Chemicals Corporation and distributors) are recommended purging materials for all Xyron grades. Purging should be performed at temperature ranges appropriate for each grade.

Downtime
In order to prevent polymer degradation when molding operation is stopped or interrupted, the following measures are recommended.

Up to 30 minutes:

• Maintain cylinder temperature. Purge barrel using same material prior to the re-start of molding operation.

From 30 minutes to 12 hours:

• Decrease cylinder temperature to 200–220°C. Purge barrel using high viscosity GPPS. Upon commencement of molding operation, Purge barrel using material for molding after increasing cylinder temperature to the required level.

For downtime longer than 12 hours:

• Purge barrel with high viscosity GPPS, and shut down machine.

Mold release
Generally, mold release agents are not required for molding Xyron resins. In cases where mold release agents are needed due to the complex shape of the mold, minimal use is recommended. Silicone-based mold release agents such as Pelicoat B™ (manufactured and sold by Chyuko-Kasei, Co., Ltd., Japan) are recommended, as the chemical ingredients do not react with Xyron.

Acrylonitrile butadiene styrene, or ABS, (chemical formula (C8H8· C4H6·C3H3N)n) is a common thermoplastic used to make light, rigid, molded products such as piping, plastic for electronics component, gear, automotive body parts, wheel covers, enclosures, protective head gear, toys, small appliance housings and power tools applications (hair dryers, blenders, food processors, lawnmowers, etc.


ABS is the polymerization of Acrylonitrile, Butadiene, and Styrene monomers, the proportions can vary from 15 to 35% acrylonitrile, 5 to 30% butadiene and 40 to 60% styrene. The result is a long chain of polybutadiene criss-crossed with shorter chains of poly(styrene-co-acrylonitrile). The nitrile groups from neighboring chains, being polar, attract each other and bind the chains together, making ABS stronger than pure polystyrene. this polymers can be engineered by the manufacturer togive a range of physical properties, depending on the ratio of the monomeric constituents and the molecular level connectivity. Typically, a styrene-acrylonitrile glassy phase is toughened by an amorphous butadiene/butadiene-acrylonitrile rubber phase.

ABS Properties
ABS polymers are resistant to aqueous acids, alkalis, concentrated hydrochloric and phosphoric acids, alcohols and animal, vegetable and mineral oils, but they are swollen by glacial acetic acid, carbon tetrachloride and aromatic hydrocarbons and are attacked by concentrated sulfuric and nitric acids. They are soluble in esters, ketones and ethylene dichloride.

Injection molding processing conditions
Melt Temperature
200 - 280 C (392 - 536 F); Aim: 230 C (446 F). Average value: 232 °C
Feed Temperature 191 - 210 °C 375 - 410 °F Average value: 200 °C
Rear Barrel Temperature 149 - 227 °C 300 - 441 °F Average value: 196 °C
Middle Barrel Temperature 177 - 250 °C 350 - 482 °F Average value: 214 °C
Front Barrel Temperature 191 - 249 °C 375 - 480 °F Average value: 225 °C
Nozzle Temperature 191 - 274 °C 375 - 525 °F Average value: 227 °C
Adapter Temperature 221 - 241 °C 430 - 465 °F Average value: 231 °C
Mold Temperature 25 - 80 C (77 - 176 F). Mold temperatures control the gloss properties; lower mold temperatures produce lower gloss levels.
Dry Time 2.00 - 24.0 hour 2.00 - 24.0 hour Average value: 4.01 hour
Material Injection Pressure 50 - 100 MPa, Average value: 45.9 MPa
Back Pressure 0.172 - 2.00 MPa 24.9 - 290 psi Average value: 0.702 MPa
Shot Size 30.0 - 80.0 % 30.0 - 80.0 % Average value: 57.9 %
Vent Depth 0.00380 - 0.00760 cm 0.00150 - 0.00299 in Average value: 0.00487 cm G
Screw Speed 25.0 - 100 rpm 25.0 - 100 rpm Average value: 63.7 rpm


Physical Properties
Density 0.350 - 1.26 g/cc 0.0126 - 0.0455 lb/in³ Average value: 1.05 g/cc
Water Absorption 0.0500 - 2.30 % 0.0500 - 2.30 % Average value: 0.565 %
Moisture Absorption at Equilibrium 0.200 - 0.450 % 0.200 - 0.450 % Average value: 0.339 %
Water Absorption at Saturation 0.300 % 0.300 % Average value: 0.300 %
Maximum Moisture Content 0.150 0.150 Average value: 0.150
Linear Mold Shrinkage 0.00240 - 0.00800 cm/cm 0.00240 - 0.00800 in/in Average value: 0.00536 cm/cm
Linear Mold Shrinkage, Transverse 0.00250 - 0.00700 cm/cm 0.00250 - 0.00700 in/in Average value: 0.00519 cm/cm
Melt Flow 0.0800 - 56.7 g/10 min 0.0800 - 56.7 g/10 min Average value: 10.1 g/10 min

ABS Resistance:
Excellent resistance (no attack) to Glycerine, Inorganic Salts, Alkalis, Many Acids, Most Alcohols and Hydrocarbons
Limited resistance (moderate attack and suitable for short term use only) to Weak Acids
Poor resistance (not recommended for use with) Strong Acids and Solvents, Ketones, Aldehydes, Esters, and some Chlorinated Hydrocarbons.

Mechanical Properties
Hardness, Rockwell R 90.0 - 119 90.0 - 119 Average value: 107
Tensile Strength, Ultimate 20.0 - 43.0 MPa 2900 - 6240 psi Average value: 31.8 MPa

Tensile Strength, Yield 20.0 - 65.0 MPa 2900 - 9430 psi Average value: 43.5 MPa
Elongation at Break 2.40 - 110 % 2.40 - 110 % Average value: 27.0 %
Elongation at Yield 1.70 - 6.00 % 1.70 - 6.00 % Average value: 3.00 %
Modulus of Elasticity 1.52 - 6.10 GPa 220 - 885 ksi Average value: 2.34 GPa
Flexural Modulus 1.50 - 25.0 GPa 218 - 3630 ksi Average value: 2.47 GPa
Flexural Yield Strength 40.0 - 95.1 MPa 5800 - 13800 psi Average value: 69.0 MPa
Izod Impact, Unnotched 0.981 J/cm - NB 1.84 ft-lb/in - NB Average value: 3.46 J/cm
Izod Impact, Unnotched (ISO) 39.2 kJ/m² - NB 18.7 ft-lb/in² - NB Average value: 39.2 kJ/m²
Izod Impact, Unnotched Low Temp 0.600 - 2.00 J/cm 1.12 - 3.75 ft-lb/in Average value: 1.28 J/cm
Izod Impact, Notched, Low Temp (ISO) 5.00 - 14.0 kJ/m² 2.38 - 6.66 ft-lb/in² Average value: 8.18 kJ/m²
Charpy Impact Unnotched 2.00 J/cm² - NB 9.52 ft-lb/in² - NB Average value: 14.3 J/cm²
Charpy Impact, Notched, Low Temp 0.200 - 1.60 J/cm² 0.952 - 7.61 ft-lb/in² Average value: 0.831 J/cm²
Charpy Impact, Unnotched Low Temp 0.300 J/cm² - NB 1.43 ft-lb/in² - NB Average value: 7.15 J/cm²
Charpy Impact, Notched 0.500 - 14.0 J/cm² 2.38 - 66.6 ft-lb/in² Average value: 2.18 J/cm²
Gardner Impact 1.80 - 22.6 J 1.33 - 16.7 ft-lb Average value: 15.5 J
Falling Dart Impact 2.82 - 37.6 J 2.08 - 27.7 ft-lb Average value: 22.7 J
Impact Test 5.40 - 58.0 J 3.98 - 42.8 ft-lb Average value: 40.4 J
Tensile Creep Modulus, 1 hour 2000 - 2500 MPa 290000 - 363000 psi Average value: 2200 MPa Grade Count:6
Tensile Creep Modulus, 1000 hours 1150 - 1900 MPa 167000 - 276000 psi Average value: 1550 MPa Grade Count:11
Izod Impact, Notched @ -40°C 0.350 - 3.95 J/cm 0.656 - 7.40 ft-lb/in Average value: 2.32 J/cm
Izod Impact, Notched 0.100 - 6.40 J/cm 0.187 - 12.0 ft-lb/in Average value: 2.32 J/cm
Izod Impact, Notched, Low Temp 0.500 - 2.14 J/cm 0.937 - 4.01 ft-lb/in Average value: 0.792 J/cm
Izod Impact, Notched (ISO) 5.00 - 25.0 kJ/m² 2.38 - 11.9 ft-lb/in² Average value: 15.5 kJ/m²

Standard and References
D 2282 Spesification for ABS Plastic Pipe
D 2468 Spesification for ABS Plastic Pipe fitting
D 3965-05 Standard Specification for Rigid Acrylonitrile-Butadiene-Styrene (ABS) Materials for Pipe and Fittings
D 1527 - 99(2005) Standard Specification for Acrylonitrile-Butadiene-Styrene (ABS) Plastic Pipe
ASTM D4673 - 02 Standard Classification System for Acrylonitrile-Butadiene-Styrene (ABS) Plastics and Alloys Molding and Extrusion Materials
ASTM D3641 - 02 Standard Practice for Injection Molding Test Specimens of Thermoplastic Molding and Extrusion Materials