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the production of heat shrinkable tubes
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PVDF Heat Shrink Tubing Product Description

Source: Time:2023-06-10 10:39:20 views:

PVDF heat-shrinkable tube is a kind of heat-resistant transparent flame retardant heat-shrinkable sleeve, composed of polyvinylidene fluoride (PVDF) material, is made of irradiated cross-linked special fluoropolymer, with excellent chemical resistance and solvent resistance, good toughness and semi-hard, thin-walled light heat-shrinkable tube, especially suitable for high temperature resistance and the need to resist wear and tear on the mechanical performance requirements of the environment,


Our fluorine heat shrinkable tube is a high temperature resistant transparent flame retardant heat shrinkable sleeve, composed of polyvinylidene fluoride (PVDF) material, made of irradiated cross-linked special fluorine polymer, with excellent chemical resistance and solvent resistance, good toughness and semi-hard, thin-walled and light heat shrinkable tube, especially suitable for high temperature resistance and the need to resist abrasion and high mechanical performance requirements of the environment, such as aerospace, radar, locomotive and other wire and cable connections and electronic components of the insulation protection, stress relief and the identification of the covered components.


PVDF characteristics: shrinkage ratio 2:1, semi-hard, thin-walled insulation, excellent flame retardancy, high temperature resistance 175°C , good toughness, excellent wear resistance and chemical resistance , compliant with RoHS, REACH environmental regulations

Operating temperature range: continuous use temperature: -55°C to 175°C , minimum starting shrinkage temperature: 155°C , minimum complete shrinkage temperature: 175°C

Conformity: SAE AMS-DTL-23053/8, UL224 , VW-1

Performance indicators:

Performance

Indicator requirements

Test Method

Typical values

Radial shrinkage (%)

≥200%

ASTM D 2671

200%

Tensile strength

34.5 MPa min.

ASTM D 638

≥45MPa

Elongation at break

150% min.

ASTM D 638

≥300%

Elongation at break after ageing
(Thermal ageing 250°C, 168 hours)

50% min.

ASTM D 638

≥200%

Thermal shock (300°C, 4 hours)

No cracks

ASTM D 2671

No cracks

Low temperature flexibility (-55°C, 4 hours)

No cracks

ASTM D 2671

No cracks

Insulation withstand voltage and breakdown

2500V, 60sec, no breakdown

ASTM D 2671

No breakdown

Volumetric resistivity

1013Ω·cm min.

ASTM D 876

≥1013Ω·cm

Corrosive

Non-corrosive

ASTM D 2671

Non-corrosive

Flame retardancy

VW-1

UL224

By

Longitudinal shrinkage (Φ0.8-Φ6.4)

≤5%

Ovens

97%

Longitudinal shrinkage (Φ7.9 - Φ25.4)

≤7%

Ovens

93%


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