T470A

上一篇:T465A  下一篇:没有了
Type: Estane® Skythane™ T470A is a Shore 77A, polyester grade, plasticizer-free, with low hardness thermoplastic polyurethane (TPU).
 
Uses: Injection Molding, Extrusion
 

Physical Properties

Standard No.

Units

Value

Hardness

ASTM D2240

Shore A

77

Specific Gravity

ASTM D792

g/cm3

1.13

Mechanical

 

 

 

Tensile Stress

ASTM D412

kgf/cm2

 

At 100% elongation

 

 

36

At 300% elongation

 

 

60

Tensile Strength

ASTM D412

kgf/cm2

280

Ultimate Elongation

ASTM D412

%

900

Tear Resistance (Die C)

ASTM D624

kgf/cm

75

Compression Set

ASTM D395

 

 

At 23°C X22hr

 

%

10

At 70°C X22hr

 

%

35

Mold Shrinkage

ASTM D955

m/m

0.006

Thermal

 

 

 

Vicat Softening Temperature

ASTM D1525

°C

77


Test samples were annealed at 100°C and 24 hours at room temperature before testing.
**These are typical values and should not be used for specifications.
 
June 4, 2007
 
The information contained herein is believed to be reliable, but no representations, guarantees or warranties of any kind are made as to its accuracy, suitability for particular applications or the results to be obtained. The information is based on laboratory work with small-scale equipment and does not necessarily indicate end product performance. Because of the variations in methods, conditions and equipment used commercially in processing these materials, no warranties or guarantees are made as to the suitability of the products for the applications disclosed. Full-scale testing and end product performance are the responsibility of the user. Lubrizol Advanced Materials, Inc. shall not be liable for and the customer assumes all risk and liability of any use or handling of any material beyond Lubrizol Advanced Materials, Inc.'s direct control. The SELLER MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Nothing contained herein is to be considered as permission, recommendation, nor as an inducement to practice any patented invention without permission of the patent owner.

Injection Molding Guide Test Machine
 
Manufacturer: Engel (Model: ES240/75P)
 
Clamping Force: 75 ton
 
Screw Diameter: 35mm
 
Screw Stroke: 160mm
 
Lubrizol Chemicals Mold No.: M-34
 
Cavity Dimension: 125*125*2.0 mm
 
Drying Conditions
 
Estane® Skythane™ T470A TPU

Drying

Conditions

Recommend 1

70~80°C for 4-5 hours by dehumidifying dryer


Injection Conditions

Barrel Temperature

 

Feeding Zone

170~185

Metering Zone

175~190

Nozzle

180~195

Injection Conditions (I)

 

Injection Pressure (psi)

1200~2000

Injection Speed

Slow

Hold Pressure (psi)

800~1400

Injection Time(s)

15~20


Mold Temperature

 

10-40

 

Injection Conditions (II)

 

Back Pressure (psi)

30~80

Screw Speed (rpm)

160-200

Cycle Time(s)

25~35