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Anji Jiahe Fluorous Rubber Co.,Ltd

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The Main Properties Of Fluorine Rubber

Edit:Anji Jiahe Fluorourubber Made Products Co.,Ltd      Date:Jun 20, 2017

  The main properties of fluorine rubber

  Good stability

  Fluorine rubber has a high degree of chemical stability, is currently all the elastomer resistance to the best performance of a kind of medium. 26 type fluorine rubber resistant oil-based oil, diester oil, silicon ether oil, silicic acid oil, resistant to inorganic acid, resistant to organic, inorganic solvents, drugs, etc., only low molecular weight ketones, Ester, intolerance amine, ammonia, hydrofluoric acid, chlorosulfonic acid, phosphoric acid hydraulic oil. The properties of the 23-type fluorophene are similar to those of the 26 type, and it is more unique. It is resistant to strong oxidizing inorganic acids such as fuming nitric acid and concentrated sulfuric acid is better than 26, and is immersed in 98% HNO3 at room temperature. Day its volume expansion is only 13% to 15%.

  High temperature resistance

  Fluorine rubber high temperature performance and silicone rubber, it can be said that the best in the current elastomer. 26-41 fluoro glue can be used at 250 ℃ for a long time, short-term use at 300 ℃; 246 fluoride glue heat better than 26-41. The physical properties of 26-41 after heat aging at 300 ° C for 100 hours are equivalent to those of 246 type after hot air aging at 300 ° C × 100 hours, and the elongation at break is maintained at about 100% and the hardness is 90 to 95 ° The 246 was maintained in good elasticity after aging at 350 ° C for 16 hours, maintained well after 110 minutes of hot air aging at 400 ° C, and after 110 minutes of hot air aging at 400 ° C, it contained a sprayed carbon black, a thermal cracking carbon black or a carbon fiber Of the elongation of the rubber increased by about 1/2 to 1/3, the intensity decreased by about 1/2, still maintain good flexibility. 23-11 type fluorine glue can be used at 200 ℃ for a long time, 250 ℃ short-term use.

  Aging resistance

  Fluorine rubber has excellent weather resistance, ozone resistance. It has been reported that VitonA, developed by DuPont, is still satisfactory after ten years of natural storage and has no significant cracking in 45% of the air with an ozone concentration of 0.01%. 23 type fluorine rubber weather resistance aging, ozone resistance is also excellent.

  Vacuum performance

  26 type fluorine rubber has excellent vacuum performance. 246 Fluorine rubber The basic formula vulcanizate vacuum degassing rate is only 37 × 10-6 Torr / s. Cm 2.246 type fluorine rubber has been successfully applied in the vacuum conditions of 10-9 Torr.

  Mechanical behavior

  Fluorine rubber has excellent physical and mechanical properties. 26 type fluorine rubber generally with the strength of 10 ~ 20MPa between the elongation at break between 150 ~ 350%, tear strength between 3 ~ 4KN / m. 23 type fluorine rubber strength between 15.0 ~ 25MPa, elongation of 200% to 600%, tear strength between 2 ~ 7MPa. In general, the compressive permanent deformation of the fluororubber at high temperatures is large, but if compared with the same conditions, such as the compression and permanent deformation at the same time from 150 ° C, the butadiene rubber and the neoprene are larger than the 26 type fluorine glue, 26 type fluorine rubber at 200 ℃ × 24 hours under the compression deformation is equivalent to the small rubber at 150 ℃ × 24 hours of compression deformation.

  Electrical performance

  23 type fluorine rubber electrical performance is better, moisture absorption than other elastomers, can be used as a better electrical insulation material. Type 26 rubber can be used at low frequency and low pressure.

  Small ventilation

  Fluorine rubber on the gas solubility is relatively large, but the diffusion rate is relatively small, so the overall performance of the permeability is also small. It is reported that 26-type fluorine rubber at 30 ℃ for oxygen, nitrogen, helium, carbon dioxide gas permeability and butyl rubber, butadiene rubber, neoprene, natural rubber is better.

  Low temperature performance

  Fluorine rubber low temperature performance is not good, it is due to its own chemical structure, such as 23-11 type Tg> 0 ℃. The actual use of fluorine rubber low temperature performance is usually used brittle temperature and compression cold coefficient to represent. The formulation of the compound and the shape of the product (such as thickness) have a greater impact on the brittle temperature, as the amount of filler in the formulation increases, the brittle temperature is sensitively deteriorated, the thickness of the product increases, and the brittleness is also susceptible to deterioration.

  Radiation resistance

  The radiation resistance of fluororubber is a relatively poor kind of elastomer, 26-type rubber radiation after the performance of cross-linking effect, 23 type fluorine rubber is the performance of the cracking effect. 246 type fluorine rubber in the air at room temperature radiation in the 5 × 107 Lun dose under the dramatic changes in the conditions of 1 × 107L under the conditions of hardness increased by 1 to 3 degrees, the intensity decreased by 20%, elongation decreased by 30% to 50% , It is generally believed that 246-type fluorine rubber can withstand 1 × 107 Lun, the limit of 5 × 107 Lun.


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ANJI JIAHE FLUOROURUBBER MADE PRODUCTS CO.,LTD is one of the leading China teflon sheet, PTFE sheet, teflon tube, PTFE tube, PTFE membrane manufacturers and suppliers, equipped with a productive teflon sheet factory, we are able to offer you cheap products. We welcome new and old customers from all walks of life to contact us for future business relationships and achieving mutual success!
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