Date Published:May. 10. 2016

Plastic and Rubber

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Characteristics item
Thermoplastics resin
FRP  Polyacetal   Polypropylene  Nylon 6  Nylon 66  Polycarbonate
ABS 
Specific gravity  1.5 - 2.1 1.42 0.9 - 1.04 1.12 - 1.14 1.13 - 1.15 1.20 1.04 - 1.07
Hardness(Rockwel) M70 - 120 M94 R80 - 110 R119 R100 - 118 M78 R90 - 115
Tensile strength(N/mm2)  98 - 200 69 29 - 38 69 - 81 75 - 82 64 - 79 35 - 59
Compression strength(N/mm2)  98 - 200 130 38 - 55 89 110 76 18 - 56
Izod impact value(kJ/m2)  11 - 100 11 2.7 - 10.9 8 10 90 15 - 50
Bending strength(N/mm2)  69 - 270 98 41 - 55 120 120 94 49 - 88
Heat resistance temperature(℃)  150 - 180 90 - 100 120 - 130 80 - 120 80 - 150 120 60 - 95
Flame resistance
Combustible
Frame resistance
Slow-burning
Extremely delayed combustion
Extremely delayed combustion
Selfextinguishing
Slow-burning
Weather Resistance  Slight change in color Slight change in color
Cracks
Slight change in color
Slight change in color
Excellent
Change in color
Weak Acid Resistance
Good
Minor effect
Large resistance
Endure
Endure
Good
Good
Strong Acid Resistance
Minor effect
Effect
Endure other than oxidizing acid
Effect
Effect
Minor effect
Minor effect
Weak Alkali Resistance
Slight change
Minor effect
Extreme resistance
Unchanged
Unchanged
Endure
Unchanged
Strong Alkali Resistance  Effect
Minor effect
Extreme resistance
Unchanged
Unchanged
Effect
Unchanged
Organic Solvent Resistance  Slight change
Has effect
Endure below 80℃ Has effect Has effect
Effect
Effect

Characteristics item
Thermosetting resin
Phenol Resin  Urea resin  Melamine resin 
Specific gravity
1.36 - 1.42 1.5 1.47 - 1.52
Hardness(Rockwell)  M110 - 116 M110 - 120 M110 - M125
Tensile strength(N/mm2 
41 - 52 38 - 69 49 - 90
Compression strength(N/mm2)  180 - 210 180 - 260 170 - 294
Izod impact value(kJ/m2)  1.5 - 5 1.5 - 3.3 1.5 - 3.3
Bending strength(N/mm2)  62 - 75 55 - 110 69 - 110
Heat resistance temperature(℃)  150 - 180 77 100
Flame resistance  Extremely delayed combustion
Extremely delayed combustion
Selfextinguishing
Weather Resistance  Gradual discoloration
Discoloration to gray
Gradual discoloration
Weak Acid Resistance  Good
Slight change
Unchanged
Strong Acid Resistance
Good except effect of oxidizing acid
Erosion on surface
Effect
Weak Alkali Resistance  Good
Slight change
Unchanged
Strong Alkali Resistance
Effect of hot strength alkaline
Decomposition
Effect
Organic Solvent Resistance
Has effect
Slight change
Has effect

Characteristics item Rubber
Natural rubber(NR) Synthetic natural rubber(IR) Styrene rubber(SBR) Butadiene rubber(BR) Chloroprene rubber(CR) Butyl rubber(IIR)
Specific gravity 0.92 0.92 - 0.93 0.92 - 0.97 0.91 - 0.94 1.15 - 1.25 0.91 - 0.93
Tensile strength(N/mm2 3 - 35 3 - 30 2.5 - 30 2.5 - 20 5 - 25 5 - 20
Extension(%) 100 - 1000 100 - 1000 100 - 800 100 - 800 100 - 1000 100 - 800
Impact resilience Excellent Excellent Good Excellent Excellent OK
Tensile Excellent Good OK Good Good Good
Abrasion resistance Excellent Excellent Excellent Excellent Good Good
Flex-crack resistance Excellent Excellent Good OK Good Excellent
Allowable Operating Temperature(℃) -75 - 90 -75 - 90 -60 - 100 -100 - 100 -60 - 120 -60 - 150
Aging Resistance
Good
Good
Good
Good
Excellent
Excellent
Light resistance Good
Good
Good
Good
Excellent
Excellent
Electrical insulation
(Ω・cm)
1010 - 1015 1010 - 1015 1010 - 1015 1014 - 1015 1010 - 1012 1015 - 1018
Gasoline / Gas Oil Impossible Impossible Impossible Impossible Good Impossible
Benzene / Toluene Impossible Impossible Impossible Impossible Impossible OK
Alcohol Excellent Excellent Excellent Excellent Excellent Excellent
Ether Impossible Impossible Impossible Impossible Impossible OK
Ethyl Acetate Impossible Impossible Impossible Impossible Impossible Excellent
Water
Excellent
Excellent
Excellent
Excellent
Excellent
Excellent
Organic Acid  Impossible
Impossible
Impossible
Impossible
Impossible
OK
High temperature inorganic acid
OK
OK
OK
OK
Good
Excellent
Low temperature inorganic acid Good Good Good Good Excellent Excellent
Weak Alkali Resistance Good Good Good Good Excellent Excellent
Strong Alkali Resistance Good Good Good GoodExcellent Excellent


Characteristics item Rubber 
Nitrile rubber(NBR) Propylene rubber(EPDM) Urethane rubber(U) Silicone rubber(Si) Fluoro-rubber(FPM)
Specific gravity 0.96 - 1.02 0.86 - 0.87 1.00 - 1.30 0.95 - 0.98 1.80 - 1.82
Tensile strengt(N/mm2 5 - 25 5 - 20 20 - 45 3 - 12 7 - 20
Extension(%) 100 - 800 100 - 800 300 - 800 50 - 500 100 - 500
Impact resilience Good Good Excellent Excellent OK
Tensile Good OK Excellent Impossible Good
Abrasion resistance Excellent Good Excellent Impossible Excellent
Flex-crack resistance Good Good Excellent Impossible Good
Allowable Operating Temperature(℃) -50 - 120 -60 - 150 -60 - 80 -120 - 280 -50 - 300
Aging Resistance Excellent Excellent Good Excellent Excellent
Light resistance Good Excellent Excellent Excellent Excellent
Electrical insulation
(Ω・cm)
102 - 1011 1012 - 1016 108 - 1012 1011 - 1016 1010 - 1014
Gasoline / Gas Oil Excellent Impossible Excellent Impossible Excellent
Benzene / Toluene Impossible OK Impossible Impossible Excellent
Alcohol Excellent Excellent OK Excellent Excellent
Ether Impossible Good Impossible Impossible Impossible
Ethyl Acetate Impossible Excellent OK OK Impossible
Water Excellent Excellent OK Good Excellent
Organic Acid Impossible Impossible Impossible Good Impossible
High temperature inorganic acid Good Good Impossible OK Excellent
Low temperature inorganic acid Good Excellent OK Good Excellent
Weak Alkali Resistance Good Excellent Impossible Excellent OK
Strong Alkali Resistance Good Excellent Impossible Excellent Impossible



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