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PCTFE rod plate material
PCTFE rod plate material
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DESCRIPTION / Introduction

Technical parameters of PCTFE

Polychlorotrifluoroethylene (PCTFE), abbreviated as PCTFE, is a high molecular weight compound formed by the polymerization of chlorotrifluoroethylene. Low molecular weight substances are liquids or wax like substances. High molecular weight refers to white solids or dispersions. Solid density of 2.1~2.2. Melting point: 208-210 ℃. Heat resistant, acid resistant, alkali resistant, and organic solvent resistant (excluding halides), but not resistant to molten caustic soda and elemental fluorine. Dissolve in aromatic hydrocarbons and carbon tetrachloride. The chemical resistance performance is second only to polytetrafluoroethylene. Can be used as engineering plastics. The tensile strength is 3.096~4.135 megapascals (316~422 kgf/cm2). Generally applied to chemical equipment, insulated cables, radio equipment, capacitors, and heat-resistant or low-temperature accessories with high performance requirements. Dispersible liquids are used to produce corrosion-resistant coatings and films.

The synthesis methods of polytetrafluoroethylene include bulk polymerization, solution polymerization, and dispersion polymerization, which are prepared by free radical polymerization using peroxides as initiators.

Polytrifluorochloroethylene has excellent chemical stability, insulation, and weather resistance, and can be used for a long time at -196~125 ℃. Its mechanical strength and hardness are superior to polytetrafluoroethylene, and when made into thin films, it has good transparency and lower air permeability.

Polytrifluorochloroethylene is suitable for applications in contact with highly corrosive media, sealing and gasket materials for high-pressure systems, transparent materials for observation windows, and electrical insulation materials. Therefore, it has special significance in the chemical and atomic energy industries, but its price is more expensive than polytetrafluoroethylene. Low molecular weight polytetrafluoroethylene has high density, excellent viscosity temperature characteristics, and chemical corrosion resistance. It can be used as a sealing fluid, lubricating grease, and balancing fluid for navigation gyroscopes in highly corrosive media.

PCTFE has excellent rigidity, low temperature resistance, and cold flow resistance, making it an ideal sealing material under low temperature and high pressure conditions. It has special applications in high-tech fields.

Application:

1. Contact with highly corrosive media, sealing and gasket materials for high-pressure systems, transparent materials for observation windows, etc.

2. Electrical insulation materials, etc.

3. Low molecular weight PCTFE is used as a sealing fluid, lubricating grease, and balancing fluid for navigation gyroscopes in highly corrosive media.

Specifications

Our company has various specifications of PCTFE rods, pipes, and plates. The specific specifications refer to the PTFE product specifications (PCTFE products comply with relevant enterprise standards).

PCTFE related performance table;

characteristic

unit

test method(ASTM)

PCTFE

physical property

melting point

D4591

220

density

D792

2.10-2.20

mechanical

tensile strength

Mpa

D638

31-41

Stretchability

%

D638

80-250

compressibility

Mpa

D695

31-51

impact strength(Isod)

J/m

D526

135-145

hardness(Rockwell)

D785

R-80

hardness(shore)

D2240

D75-80

Bending elasticity ratio

Gpa

D790

1.25-1.79

Tensile elasticity ratio

Gpa

D638

1.03-2.10

coefficient of kinetic friction

0.69Mpa

3m / min

D1894

0.4

heat nature

Thermal conductivity

W/m.k

C177

0.22

specific heat

103

0.9

coefficient of linear expansion

10-5/℃

D696

6

Ball pressure temperature

170

Thermal distortion temperature

1.81Mpa

D648

90

0.45 Mpa

126

最高使用温度

无纪录

120

Electrical properties

Volume resistance rate

Ω.㎝

D257

(50%RH.23℃)

>1018

Insulation endurance (short time)

MV/m

(3.2mm厚)

D149

22

conductivity

60Hz

D150

2.6

103 Hz

D150

2.6

106 Hz

D150

2.6

Induced positive connection

60Hz

D150

0.0012

103 Hz

D150

0.025

106 Hz

D150

0.020

ARC resistance

s

D495

>360

chemical resistance

other

Water absorption (24H)

%

D570

0.01

Flammability (3.2mm thick)

(UL-94)

V-0

Acid index

D2863

>95

direct sunlight

None

weak acid

D543

excellent

strong acid

D543

excellent

weak base

D543

excellent

strong base

D543

excellent

organic solvent

D543

excellent