PTFE, PFA, FEP, PVDF Fluoroplastic products industry experts
Introduction and specification of PVDF tube
Classification:
Industry dynamics
Author:
PTFE tube little sister
Source:
PTFE tube little sister
Release time:
2005-08-13
Visits:
1. PVDF tube factory direct
PVDF tube (polyvinylidene fluoride tube), closely arranged between molecular chains, strong hydrogen bonds, natural flame resistance, crystallinity of 65% ~ 78%, long-term use temperature -40~150 ℃. Its outstanding features are high mechanical strength, good radiation resistance, and can be used outdoors for a long time without maintenance. It has good chemical stability and is not corroded by acid, alkali, strong oxidant and halogen at room temperature. It is widely used in petrochemical, electronic and electrical, steel pickling, and acid-base transportation.
Figure 1:PVDF Tube Source: Shenzhen Dankai
PVDF tube features:
1 very good chemical resistance, at room temperature is not acid, alkali strong oxidant, halogen corrosion.
2 high impact strength, wear resistance, creep resistance, high mechanical strength and good toughness.
3 good heat resistance, non-flammable, long-term use temperature -40~150 ℃, and high dielectric strength.
4 with outstanding weather resistance, ozone resistance, resistance to ultraviolet and nuclear rays.
PVDF performance parameters
| Performance Items | Test conditions [Status] | Test Method | Test data | Data Unit | |
| Basic performance | melt flow rate | 230 ℃,5000g | He K-7210 | 20 | G/10min |
| Physical Performance | Specific Gravity | 30℃ | ASTM D-792 | 1.78 | g/ml |
| Mold shrinkage | Injection Molding | 2.6(230) | % | ||
| Mechanical properties | Shore hardness | ASTM D-2240 | 78 | D scale | |
| tensile modulus | 5mm/min | ISO R-527 | 2280 | MPa | |
| Tensile yield strength | 50mm/min | ISO R-527 | 59 | MPa | |
| Elongation at break | 50mm/min | ISO R-527 | 60 | % | |
| extrusion strength | 1.5mm/min | ASTM D-695 | 80 | MPa | |
| bending strength | 1.5mm/min | ASTM D-790 | 62 | MPa | |
| IZODnotched impact strength | ASTM D-256 | 10 | KJ/m2 | ||
| Tensile yield strength | 5mm/min | ISO R-527 | 53 | MPa | |
| flexural modulus | 1.5mm/min | ASTM D-790 | 1540 | MPa | |
| Die | 1.5mm/min | ASTM D-695 | 1320 | MPa | |
| Rockwell hardness | ASTM D-785 | 116 | R scale | ||
| Electrical Performance | volume resistivity | He K-6723 | 1015 | Ω.cm | |
| Thermal performance | Melting Point | 240 ℃,S.R.50S-1 | Capirograph | 12000 | Poise |
| thermal deformation temperature | 0.45MPa | ASTM D-648 | 156 | ℃ | |
| Critical shear vate of melt fracture | 240℃ | Capirograph | 1000 | S-1 | |
| thermal deformation temperature | 1.82MPa | ASTM D-648 | 100 | ℃ | |
| coefficient of linear thermal expansion | 30-80 ℃ | TMA | 17 | 10-5/℃ | |
| Vicat softening temperature | 1000g lead | ASTM D-1526 | 174 | ℃ | |
| The Sweel | 240 ℃,S.R.50S-1 | Capirograph | 1.3 | ||
| Other performance | Tm | 10℃/min | DSC | 177 | ℃ |
| Tc | 10℃/min | DSC | 142 | ℃ | |
| Phew inh | DMF30 ℃ | 0.85 | dl/g | ||
| Tc | 10℃/min | DSC | 56 | J/g | |
2. PVDF pipe specification
PVDF tube features:
1 good chemical resistance, at room temperature is not acid, alkali strong oxidant, halogen corrosion.
2 high impact strength, wear resistance, creep resistance, high mechanical strength and good toughness.
3 good heat resistance, non-flammable, long-term use temperature -40~150 ℃, and high dielectric strength.
4 with outstanding weather resistance, ozone resistance, resistance to ultraviolet and nuclear rays.
Material: pvdf pipe construction is vinylidene fluoride homopolymer or copolymer of vinylidene fluoride and other less recorded fluorine-containing vinyl monomers. pvdf resin has the characteristics of fluorine resin and general-purpose resin. besides good chemical corrosion resistance, high temperature resistance, oxidation resistance, weather resistance and ray radiation resistance, pvdf pipe also has special properties such as piezoelectricity, dielectric property and thermoelectric property. pvdf pipe is currently the second largest product in fluorine-containing plastics.
PVDF pipe price
Figure 2:PVDF tube Source: Shenzhen Dankai
Uses: Protection of electronic components in high temperature and oil environment; Insulation and protection of resistance, capacitor and heat couple; Mechanical protection of various metal wires; Insulation, protection and reinforcement of wire terminal, connection and terminal.
Because of the excellent product characteristics of PVDF, it is widely used in various fields.
PVDF pipe specification table:
Common specifications: inner diameter * outer diameter (unit: mm)
Metric: 2*4 3*5 4*6 5*7 6*8 8*10 8*12 9*12 10*12
12*14 14*16 16*18 18*20 20*22
Imperial: 1/8 inch (1.6*3.2) 1/4 inch (3.96*6.35) 3/8 inch (6.35*9.525)
1/2 inch (9.5*12.7) 3/4 inch (15.88*19.05) 1 inch (22.2*25.4)
Other producible specifications, inner diameter 0.5mm to 200mm, wall thickness 0.12mm to 3mm
3. PVDF connection method
1 hot melt butt welding, 2 hot melt socket
At present, high-purity water and ultra-pure water transport pipeline materials are used PVDF pipe pipe, because PVDF pipe has good chemical stability, cleanliness, smoothness and other properties, it has been widely used in the microelectronics industry, and achieved good social and economic benefits.
pvdf pipe has good chemical stability, chemical resistance and thermal stability. It can be used for a long time in the temperature range of -62 ℃- 150 ℃, and can withstand all salts, acids, alkalis, aromatics, halogens and other media except strong solvents. Its flame retardant, anti-fatigue Su is not easy to break, anti-wear, self-lubricating properties, good insulation materials. Its high mechanical strength: compared with PTFE: tensile strength is 2 times larger, compression strength is 6 times larger. Wear resistance: only slightly inferior to NYLON6,UHMWPE.
When the temperature and pressure exist at the same time, its performance is much better than other plastic pipes. It is mainly used for the transportation of corrosive media in the fields of waste acid recovery and regeneration in the smelting industry.
Shenzhen Dankai Technology Co., Ltd. (ShenZhen DanKai Technology Co., Ltd.), whose predecessor was the Fluoroplastic Material Factory of Dongguan Dandi Insulation Material Co., Ltd. established in 1998, specializes in the research and development, production and sales of FEP, PFA, PTFE and other fluoroplastic tube rod sheet membrane products and other insulation materials. The company has international standards of senior R & D team and the introduction of foreign fluorine plastic products production line. Some fluoroplastic products through ISO9001, SGS, FDA certification, Huawei, Foxconn, the United States, ZTE, Intel, AirTAC and other domestic and foreign cooperation customers fully affirmed. The company's main products are: ① pipes: Ptfe pipes, Fep pipes, Pfa pipes, Pvdf pipes; ② Heat shrinkable tubes: Ptfe heat shrinkable tubes, Fep heat shrinkable tubes, Pfa heat shrinkable tubes, Pvdf heat shrinkable tubes; ③ Plate rod film: Ptfe plate rod film, Feep plate rod film, Pfa plate rod film, Pvdf plate rod film, etc. PE: PE, special, spiral tube, spring tube, rotary cutting tube, welding rod, tee, straight, gasket, joint, cone rod, flared tube, sealing tube, braided tube, corrugated tube, etc. At the same time can be customized according to customer requirements processing production of various specifications of fluorine plastic products.
Key words:
Dankai Technology
Address: Area B, 4th Floor, Building 1, North Yongfa Science and Technology Park, Yanchuan North, Chaoyang Road, Songgang Town, Bao'an District, Shenzhen, China
Tel: +86-755-29979617 23127719 23127819
E-mail: dkt@szdankai.com
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