Virgin ABS resin Medical Grade

Product Item : 964
Category： ABS Resin
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Medical ABS compound has excellent comprehensive physical and mechanical properties, good impact resistance at low temperature. Dimensional stability. Electrical properties, scratch resistance, chemical resistance, dyeing, finished product processing and mechanical processing are good. ABS resin is resistant to water, inorganic salts, bases and acids, insoluble in most alcohols and hydrocarbon solvents, but easily soluble in aldehydes, ketones, esters and some chlorinated hydrocarbons. ABS resin thermal deformation temperature is low flammable, heat resistance is poor. The melting temperature is 217~237℃, and the thermal decomposition temperature is above 250℃.

Medical ABS plastic resin is the largest and most widely used polymer. It organically unifies the various properties of PB, PAN, and PS, and has excellent mechanical properties of toughness, hardness, and rigid phase balance. ABS is a terpolymer of acrylonitrile, butadiene and styrene, A stands for acrylonitrile, B stands for butadiene, and S stands for styrene. After actual use, it was found that: ABS plastic pipes have good performance due to their three compositions; acrylonitrile endows ABS resin with chemical stability, oil resistance, certain stiffness and hardness; butadiene makes it tough and impact The performance and cold resistance have been improved; styrene makes it have good dielectric properties and presents good processability.

Medical-grade ABS is usually not fire-resistant and flame-retardant. If it is made of fire-resistant, it is indeed difficult to pass the medical-grade standard due to the addition of flame retardants. Therefore, the flame-retardant grade of medical-grade ABS is HB, and the fire resistance grade is low. The fluidity of medical-grade ABS is medium, that is, the melt index is 11 g/10min. The temperature resistance of medical-grade ABS is not high, and the heat distortion temperature is 94 °C. , the grade of the material is higher, and it is mainly used in medical devices such as asthma inhalers, surgical knife handles and medical care products.

Physical Properties	Metric	English
Density	1.06 g/cc	0.0383 lb/in³
Linear Mold Shrinkage	0.0040 - 0.0070 cm/cm	0.0040 - 0.0070 in/in
Melt Flow	7.0 g/10 min @Load 3.80 kg, Temperature 230 °C	7.0 g/10 min @Load 8.38 lb, Temperature 446 °F
	21 g/10 min @Load 10.0 kg, Temperature 220 °C	21 g/10 min @Load 22.0 lb, Temperature 428 °F
Mechanical Properties	Metric	English
Hardness, Rockwell R	105	105
Tensile Strength, Yield	36.0 MPa	5220 psi
Tensile Modulus	2.20 GPa	319 ksi
Flexural Yield Strength	72.0 MPa	10400 psi
Flexural Modulus	2.40 GPa	348 ksi
Izod Impact, Notched	1.71 J/cm @Thickness 3.20 mm	3.20 ft-lb/in @Thickness 0.126 in
Thermal Properties	Metric	English
CTE, linear	90.0 µm/m-°C	50.0 µin/in-°F
Deflection Temperature at 0.46 MPa (66 psi)	88.0 °C @Thickness 3.20 mm	190 °F @Thickness 0.126 in
	92.0 °C @Thickness 12.7 mm	198 °F @Thickness 0.500 in
	100 °C @Thickness 3.20 mm	212 °F @Thickness 0.126 in
	102 °C @Thickness 12.7 mm	216 °F @Thickness 0.500 in
Deflection Temperature at 1.8 MPa (264 psi)	75.0 °C @Thickness 3.20 mm	167 °F @Thickness 0.126 in
	87.0 °C @Thickness 12.7 mm	189 °F @Thickness 0.500 in
	95.0 °C @Thickness 3.20 mm	203 °F @Thickness 0.126 in
	100 °C @Thickness 12.7 mm	212 °F @Thickness 0.500 in
Vicat Softening Point	106 °C	223 °F
Processing Properties	Metric	English
Rear Barrel Temperature	235 - 250 °C	455 - 482 °F
Middle Barrel Temperature	240 - 255 °C	464 - 491 °F
Front Barrel Temperature	245 - 260 °C	473 - 500 °F
Nozzle Temperature	245 - 260 °C	473 - 500 °F
Melt Temperature	245 - 265 °C	473 - 509 °F
Mold Temperature	45.0 - 65.0 °C	113 - 149 °F
Drying Temperature	71.0 - 77.0 °C @Time 14400 sec	160 - 171 °F @Time 4.00 hour
	82.0 - 88.0 °C @Time 7200 sec	180 - 190 °F @Time 2.00 hour
Moisture Content	<= 0.10 %	<= 0.10 %
Dew Point	<= -29.0 °C	<= -20.2 °F
Injection Pressure	68.9 - 110 MPa	10000 - 16000 psi
Back Pressure	0.345 - 0.689 MPa	50.0 - 100 psi
Clamp Pressure	30.8 - 61.6 MPa	4470 - 8930 psi
Cushion	<= 0.635 cm	<= 0.250 in
Hold Pressure	50-75% of Injection Pressure, Injection Molding
Injection Speed	High
Screw Compression Ratio	2.5:1
Screw Length-to-Diameter Ratio	>= 20:1
Screw Speed