Material Properties

Insulation & Sheath Material Properties In General

Characteristics of Thermoplastic Insulating and Sheath Materials

Designation

 

 Electrical

 
VDE initial-code Abbre-viations Materials Density Break down voltage Specific
volume
resistivity		 Dielectric-constant Dielectric loss factor tan δ
g/cm3 KV/mm (20°C) Ohm·cm 20°C 50 Hz/20°C
Y PVC Polyvinylchloride compounds 1,35 – 1,5 25 1013– 1015 3,6 – 6 4 x 10–2
to
1 x 10–1
Yw PVC Heat-resistant 90°C 1,3 – 1,5 25 1012– 1015 4 – 6,5
Yw PVC Heat-resistant 105°C 1,3 – 1,5 25 1012– 1015 4,5 – 6,5
Yk PVC Cold resistant 1,2 – 1,4 25 1012– 1015 4,5 – 6,5
2Y LDPE Low density Polyethylene 0,92 – 0,94 70 1017 2,3 2 x 10–4
2Y HDPE High density Polyethylene 0,94 – 0,98 85 1017 2,3 3 x 10–4
2X VPE Cross-linked Polyethylene 0,92 50 1012– 1016 4 – 6 2 x 10–3
O2Y

 

 Foamed Polyethylene 0,65 30 1017 1,55 5 x 10–4
3Y PS Polystyrene 1,05 30 1016 2,5 1 x 10–4
4Y PA Polyamide 1,02 – 1,1 30 1015 4 2 x 10–2 to 1 x 10–3
9Y PP Polypropylene 0,91 75 1016 2,3 – 2,4 4 x 10–4
11Y PUR Polyurethane 1,15 – 1,2 20 1010– 1012 4 – 7 2,3 x 10–2

 

 CPE Chlorinated Polyethylene 1,16 20 1010-1013 5,5 2,8 x 10–2
12Y TPE-E Polyester Elastomer 1,2 – 1,4 40 ＞1010 3,7 – 5,1 1.8 x 10–2

 

 TPE-O Polyolefine Elastomer 0,89 – 1,0 30 ＞1010 2,7– 3,6
Designation Thermic
VDE initial- code Abbre-viations Materials Working temp. Melt-temp Oxygen index LOI Heating value H0 Thermal-conductivity Corrosive gases in case of fire Radiation resistance
Permanent (°C) Short time(°C) +°C (% O2) MJ·kg-1 W·K-1·m-1 Mrad
Y PVC Polyvinylchloride compounds

 

 -30+70 +100 ＞140 23-42 17-25 0,17 Hydrogen chloride 80
Yw PVC Heat-resistant 90°C -20+90 +120 ＞140 16-22
Yw PVC Heat-resistant 105°C -20+105 +120 ＞140 24-42 16-20
Yk PVC Cold resistant -40+70 +100 ＞140 17-24
2Y LDPE Low density Polyethylene -50+70 +100 105-110 ≤22 42-44 0,3 No 100
2Y HDPE High density Polyethylene -50+100 +120 130 0,4
2X VPE Cross-linked Polyethylene -35+90 +100 — 0,3
O2Y

 

 Foamed Polyethylene -40+70 +100 105 18-30 0,25
3Y PS Polystyrene -50+80 +100 ＞120 ≤22 40-43 0,25 No 80
4Y PA Polyamide -60+105 +125 210 ≤22 27-31 0,23 No 10
9Y PP Polypropylene -10+100 +140 160 42-44 0,19
11Y PUR Polyurethane -55+80 +100 150 20-26 20-26 0,25 100(500)

 

 CPE Chlorinated Polyethylene -55+60 +100 150-170 22-27 27,6 0,144 Hydrogen chloride 50
12Y TPE-E Polyester Elastomer -50 +100 +140 190 ≤29 20-25 0,5 No 10

 

 TPE-O Polyolefine Elastomer +130 150 ≤25 23-28 1,5 10
Designation Mechanical Halogen
VDE initial-code Abbre-viations Materials Tensile strength Elongation at break Shore hardness Water absorbtion Halogen-free
N/mm2 % %
Y PVC Polyvinylchloride compounds

 

 10-25 130-350 70-95(A) 0,4 No
Yw PVC Heat-resistant 90°C
Yw PVC Heat-resistant 105°C
Yk PVC Cold resistant
2Y LDPE Low density Polyethylene 10-20 400-600 43-50(D) 0,1 Yes
2Y HDPE High density Polyethylene 20-30 500-1000 60-63(D)
2X VPE Cross-linked Polyethylene 12,5-20 300-400 40-45(D)
O2Y

 

 Foamed Polyethylene 8-12 350-450 — — Conditional*
3Y PS Polystyrene 55-65 300-400 35-50(D) 0,4 Yes
4Y PA Polyamide 50-60 50-170 — 1,0-1,5
9Y PP Polypropylene 20-35 300 55-60(D) 0,1
11Y PUR Polyurethane 30-45 500-700 70-100(A) 1,5 Yes**

 

 CPE Chlorinated Polyethylene 12,5 700 70(A) 0.01 NO
12Y TPE-E Polyester Elastomer 30 ＞300 85(A)70(D) 1,5 Yes

 

 TPE-O Polyolefine Elastomer 20 55(A)70(D)
The propellent may be e.g. Fluor-Chlor-Hydrocarbon
**depend on the type compound
Designation Properties
VDE initial-code Abbre-viations Materials Oxidation resistance Heat resistance Oil resistance Low-temperature flexibility Weather, sun resistance Ozone resistance Abrasion resistance Flame resistance
Y PVC Polyvinylchloride compounds E G-E F P-G G-E E F-G E
Yw PVC Heat-resistant 90°C
Yw PVC Heat-resistant 105°C
Yk PVC Cold resistant
2Y LDPE Low density Polyethylene E G G-E E E E G P
2Y HDPE High density Polyethylene E E G-E E E E E P
2X VPE Cross-linked Polyethylene E G G O G E F-G F-G
O2Y

 

 Foamed Polyethylene E G G E E E F P
3Y PS Polystyrene

 

 

 

 

 F

 

 G P
4Y PA Polyamide E E E G E E E P
9Y PP Polypropylene E E F P E E F-G P
11Y PUR Polyurethane E G E G G E O P

 

 CPE Chlorinated Polyethylene E E E E E E E-O E
12Y TPE-E Polyester Elastomer E E E E E E E F

 

 TPE-O Polyolefine Elastomer E E F E E E F F-G
P = Poor; F= Fair; G = Good; E = Excellent; O = Outstanding
Designation Properties
VDE initial-code Abbre-viations Materials Water resistance Acid resistance Alkali resistance Aliphatic hydrocarbons resistance (Gasoline, kerosene, etc) Aromatic hydrocarbons resistance(Benzol, toluol, etc.) Halogenated hydrocarbons resistance (Degreaser solvents) Alcohol resistance
Y PVC Polyvinylchloride compounds F-G G-E G-E P P-F P-F P-F
Yw PVC Heat-resistant 90°C
Yw PVC Heat-resistant 105°C
Yk PVC Cold resistant
2Y LDPE Low density Polyethylene E G-E G-E G-E P G E
2Y HDPE High density Polyethylene E E E G-E P G E
2X VPE Cross-linked Polyethylene G-E G-E G-E F F F E
O2Y

 

 Foamed Polyethylene E G-E G-E G P G E
3Y PS Polystyrene

 

 

 

 

 

 

 
4Y PA Polyamide P-F P-F E G G G P
9Y PP Polypropylene E E E P-F P-F P E
11Y PUR Polyurethane P-G F F P-G P-G P-G P-G
  CPE Chlorinated Polyethylene E E E G-E E E E-O
12Y TPE-E

 

 Polyester Elastomer E F F G-E E E E-O

 

 TPE-O Polyolefine Elastomer E G G G-E E E E-O
P = Poor; F= Fair; G = Good; E = Excellent; O = Outstanding