Comparison of High Temperature Heat Shrink Tubing of Several Materials

Silicone rubber: polycondensates with organic groups consisting of silicon oxygen atoms

High temperature and low temperature performance, excellent electrical insulation, thermal oxidation and ozone stability. Disadvantages are low mechanical strength, oil, acid and alkali, solvent resistance is poor, the price is more expensive.

Fluorine rubber: Fluorinated monomer copolymer derived

High temperature up to 300 ℃, medium corrosion resistance than other rubber (not afraid of acid and alkali, oil resistance is the best rubber), anti-radiation and high vacuum excellent. In addition, the mechanical strength, electrical insulation, anti-aging properties are good, is a comprehensive performance of synthetic rubber. The disadvantage is poor processing, expensive.

Chlorinated Polyethylene Rubber: Ternary Copolymer of Ethylene, Vinyl Chloride and Vinyl Chloride

Weather resistance, ozone resistance, electrical insulation is acceptable, Naisuan Jian, good oil resistance, water resistance, fire resistance, wear resistance, but poor flexibility, compression deformation, performance and chlorinated polyethylene rubber similar.

High temperature heat shrink tube application High temperature heat shrinkable tube is mainly used in high temperature oil environment electronic components protection; resistance capacitors, thermocouple insulation and protection; all kinds of metal wire type of mechanical protection; wire ends, Protection and reinforcement. Technical parameters of high temperature heat shrinkable tube

temperature range

Continuous operating temperature: -55 ~ 175 ℃

Minimum starting shrinkage temperature: 155 ° C

Minimum full shrinkage temperature: 175 ° C n

Standard UL224 150 ° C 600V VW-1AMS-DTL-23053 / 8n

Performance parameters

Tensile strength 34.5MPa min.ASTM D 638 ≥ 35MPa

Elongation at break 150 [%] min.ASTM D 638 ≥ 200 [%]

Thermal shock (300 ℃, 4 hours) No cracks ASTM D2671

No cracks at low temperature (-55 ° C, 4 hours) ASTM D2671

By heat aging at 250 ° C for 168 hours

Aging elongation after aging 50 [%] min.ASTM D 638 ≥ 50

[%] Electrical characteristics:

Insulation withstand voltage and breakdown 2500V, 60sec,

No breakdown ASTM D2671

By volume resistivity 1013Ω 穋 m min.ASTM D 876 ≧ 1013Ω 穋 m

Chemical properties:

Corrosive, non-corrosive ASTM D2671 Pass

Flame retardant VW-1UL224 through n

Specifications Size mm / inch