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مهندسی پلیمر(polymer engineering) - لاستیک وایتون(Viton Rubber)
جمعه 20 بهمن 1391

لاستیک وایتون(Viton Rubber)

   نوشته شده توسط: محمد s    نوع مطلب :مقالات - کتاب -هندبوک ،

لاستیک وایتون(Viton Rubber):
لاستیک مقاوم در برابر روغن، اسید، گاز و درجه حرارتهای بالا که مشخصات فنی آن به شرح زیر میباشد.

TECHNICAL

SPACIFICATIONS

QUALITY:VITON RUBBER SHEETING CODE: SM149

Values

Test method

Values

Test method

Properties

Metric units

FPS units

1.95 g/cm³

DIN 53508

1.95 Lb/ft³

ASTM D297

DENSITY

75 5 SH A

DIN 53505

75 5 SH A

ASTM D2240

HARDNESS

50 kg/cm2

DIN 53504

710 PSI

ASTM D412

TENSILE STRENGTH(min)

200%

DIN 53504

200%

ASTM D412

ELONGATION AT BREAK(min)

N.A.

DIN 53516

N.A.

ASTM D 5963

ABRASION RESISTANCE(max)

62%

DIN 53517

62%

ASTM D5963

COMPRESSION SET (70 C/24 hrs25% set)(max)

30 kg/cm

DIN 53515

168 Lbs/Inch

ASTM D624

TEAR RESISTANCE (Angular) min





CHANGE IN PROPERTIES




ASTM D573

HEAT AGEING (72hrs.AT 150 C)

+ 2 (Max)


+ 2 (Max)


---HARDNESS(Pts)

+5 / -5


+5 / - 5


---TENSILE STRENGTH (%)

+5 / -5


+5 / -5


---ELONGATION AT BREAK (%)




ASTM D 471

VOLUME SWELL :AT 150 C FOR 24 HRS/IN

+ 1%


+ 1%


ASTM OIL NO.1

+ 3%


+ 3%


ASTM OIL NO.2

+ 5%


+ 5%


ASTM OIL NO.3





CHEMICAL RESISTANCE

EXCELLENT


EXCELLENT

ASTM D 1149

---OZONE

EXCELLENT


EXCELLENT


---DILUTE ACIDS AND BASES

VERY GOOD


VERY GOOD


---OILS

VERY GOOD


VERY GOOD


---SOLVENTS

-40 to + 300 C


-40 to +300 C


TEMPERATURE RANGE

BLACK


BLACK


COLOUR


Temp.range: -40 Deg C to +250 Deg C for continuousexposure and
300 Deg C for intermittent temp. Fluctuation
Mechanical Properties: Sp. Gr. 1.95, T.S:50 kg/cm2, Elong: 200%, H: 75 +/-5
Shore A
Chemical Properties :

Dilute Acids and bases

Excellent

Conc Acids and bases

Excellent

Ozone

Excellent

Oxygen

Excellent

Mineral oils

Very Good

Gasoline

Very Good

Synthetic Hydraulic fluids

Very Good

Fuels

Please advice details of fuels

Aromatics up to 50% hydro carbon content

Very Good

Water and water vapor

Excellent

High vacuum

Excellent

Watering and resistance to ageing

Excellent

Amines and alkalis

Very Good

solvents

Very Good

Gas permeability

Good


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