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Teflon Digestion Tube Semi-permeable milky white transparent color complete
- Categories:Industry news
- Author:Miss Teflon tube
- Origin:Miss Teflon tube
- Time of issue:2007-12-21 15:21
- Views:
Teflon Digestion Tube Semi-permeable milky white transparent color complete
- Categories:Industry news
- Author:Miss Teflon tube
- Origin:Miss Teflon tube
- Time of issue:2007-12-21 15:21
- Views:
1. Teflon digestion tube is semi-permeable, milky white and transparent, with complete colors
Teflon digestion tubes are mainly used in food, disease control, academy of agricultural sciences, medicine, agriculture, forestry, environmental protection, chemical industry, biochemistry and other industries, as well as colleges and universities, The sample digestion treatment before chemical analysis of products, agricultural and sideline products, feed, heavy metals, ores, etc. can be used in conjunction with analytical instruments such as atomic absorption, atomic fluorescence and heavy metal electrothermal digestion.
Teflon (PTFE) digestion tube has good resistance to commonly used chemicals. The open mouth can be autoclaved, the inner wall is smooth, flat-bottomed, round-bottomed, and pointed-bottomed products can be customized, and the bottle mouth can also be processed into a socket Or threaded mouth, can be equipped with 12-position, 36-position, 54-position digestion apparatus for digestion experiments.
The Chinese name of PTFE is also called "Teflon" (teflon), "Teflon", "Teflon", "Teflon" and so on. It is a polymer compound formed by polymerization of tetrafluoroethylene. Its structure is simplified as -[-CF2-CF2-]n-. It has excellent chemical stability and corrosion resistance, and is the world’s best corrosion resistance. One of the materials, in addition to molten alkali metal, LV trifluoride, green pentafluoride and liquid fluorine, it can withstand all other chemicals, and it will not change after boiling in aqua regia. It is widely used in all kinds of acid and alkali resistance and organic solvents. Occasions. It has airtightness, high lubrication, non-stickiness, electrical insulation, good anti-aging ability, and excellent temperature resistance (it can work for a long time at a temperature of plus 250°C to minus 180°C). Teflon itself is not toxic to humans. The operating temperature is -190～250℃, allowing rapid cooling and heating, or alternate operation of cooling and heating. Pressure -0.1～6.4Mpa.
Teflon digestion tube characteristics
1. The appearance is pure white, the inner wall is smooth and does not hang water;
2. High temperature resistance: use temperature -200～+250℃;
3. Low temperature resistance: -196℃ can keep 5%;
4. It can withstand 10,000 revolutions per minute;
5. The outer diameter of the tetrafluoroethylene digestion tube is 30mm, and the total height is 105mm, which is consistent with the size of the PP digestion tube 50mL;
6. With extraordinary chemical resistance, it can withstand almost all chemical solvents (resistant to strong acids, strong bases, aqua regia and various organic solvents).
Picture 1: Teflon Digestion Tube Source: Shenzhen Dankai
2. Teflon flared tube
The Teflon flared tube is a socket connection. Put a circle of detergent on the big end of the apron tube port joint, and then cover the other end with a wooden board, hit it with a larger hammer, and push it The pipe connects the two pipes. The installation of the flared pipe is firmer than the joint bonding, the joint is not easy to burst, and the installation efficiency should be higher.
The mechanical properties of the Teflon flared tube are relatively soft. Has very low surface energy.
Teflon flared tube has a series of excellent performance:
High temperature resistance: long-term use temperature 200~260 degrees;
Low temperature resistance: still soft at -100 degrees;
Corrosion resistance: resistant to aqua regia and all organic solvents;
Weather resistance: the best aging life among plastics;
High lubrication: has the smaller coefficient of friction in plastics (0.04);
Non-sticky: It has a small surface tension in solid materials without adhering to any substances;
Non-toxic: It is physiologically inert; it has excellent electrical properties and is an ideal C-level insulating material. A thick layer of newspaper can block the high voltage of 1500V.
The full English name of Teflon is Polytetrafluoroetylene, Teflon, PTFE, F4, etc. for short. Teflon (Polytetrafluoroethene) is a synthetic polymer material that uses fluorine to replace all hydrogen atoms in polyethylene. This material is resistant to acids, alkalis, and various organic solvents, and is almost insoluble in all solvents. At the same time, Teflon has the characteristics of high temperature resistance, and its friction coefficient is very low, so it can be used as a lubricating effect, and it has become an ideal coating for easy-to-clean woks and the inner layer of water pipes. It can be used for pipeline anti-corrosion, high and low temperature resistance, and corrosion resistance. Used in harsh environments such as lubrication, engineering, electronics, electrical appliances, and aviation.
3. High temperature resistant Teflon casing
The temperature resistance of Teflon is a requirement that many people need to understand. High temperature resistance, Teflon has been working and can withstand 260 degrees, and the instantaneous high temperature can reach 400 degrees.
In addition to high temperature resistance and low temperature resistance, Teflon can be used for a long time to -190 degrees, but thermal expansion and contraction are large, and the general safe and effective limit use temperature is about -70 degrees.
Teflon is a special plastic with high temperature resistance, wear resistance, self-lubricating (very low friction coefficient), and chemical properties: corrosion resistance, strong acid and alkali resistance, and can withstand molten alkali metals , Fluorinated medium and all strong acids (including aqua regia), strong oxidants, reducing agents and various organic solvents except sodium hydroxide above 300℃, the chemical name is polytetrafluoroethylene (PTFE).
Figure 2: Teflon casing source: Shenzhen Dankai
Teflon is a registered trademark used by DuPont on a series of fluoropolymer products. It was invented and manufactured in the Jackson laboratory by Dr. Roy J. Plunkett.
Polytetrafluoroethylene is commonly known as the "Plastic King". It is a polymer compound formed by polymerization of tetrafluoroethylene. It has excellent chemical stability and corrosion resistance (it is one of the best corrosion resistance materials in the world today. In addition to molten sodium and liquid fluorine, it can withstand other All chemicals do not change when boiled in aqua regia. They are widely used in all kinds of anti-acid, alkali and organic solvents), airtightness, high lubrication and non-stickiness, electrical insulation, good anti-aging endurance, and excellent temperature resistance.
Shenzhen DanKai Technology Co., Ltd. (ShenZhen DanKai Technology Co.,ltd.), whose predecessor was Dongguan Dandi Insulation Material Co., Ltd. Fluoroplastic Material Factory, which was established in 1998, specializes in FEP, PFA, PTFE and other fluoroplastic pipes. R&D, production and sales of rod, sheet and film products and other insulating materials. The company has a senior R&D team with international standards and a production line of fluorine plastic products imported from abroad. Some fluoroplastic products have passed ISO9001, SGS, FDA certification, and have been fully affirmed by domestic and foreign cooperative customers such as Huawei, Foxconn, Midea, ZTE, Intel, and AirTAC. The main products of the company are: ①Tubes: Ptfe tube, Fep tube, Pfa tube, Pvdf tube; ②Heat shrinkable tube: Ptfe heat shrinkable tube, Fep heat shrinkable tube, Pfa heat shrinkable tube, Pvdf heat shrinkable tube; ③Plate rod Membrane: Ptfe board and rod film, Fep board and rod film, Pfa board and rod film, Pvdf board and rod film; ④Insulation materials: silica gel, PE, PVC, UPE, etc.; ⑤Special category: PFA imported connector, spiral tube, spring tube , Rotary cut tube, welding rod, tee, straight-through, gasket, joint, taper rod, flared tube, sealing tube, braided tube, bellows, etc. At the same time, fluorine plastic products of various specifications can be customized and processed according to customer requirements.
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