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Study the working environment of plasma to improve the hydrophilicity of PITFE material surface

  • Categories:Technical Support
  • Author:Plasma cleaning machine-CRF plasma plasma equipment-plasma surface treatment machine manufacturer-chengfeng intelligent manufacturing
  • Origin:
  • Time of issue:2022-08-21
  • Views:

(Summary description)Study the working environment of plasma to improve the hydrophilicity of PITFE material surface: Polytetrafluoroethylene (PIFE) has been widely used in industrial applications because of its unique properties such as excellent chemical stability, dielectric properties, extremely low coefficient of kinetic friction, good machinability and flame retardancy. Separator paper is also called polyethylene (PE) film. Its function in lithium-ion batteries is to isolate the positive and negative materials. The quality of the separator paper directly affects the safety performance and capacity of the battery. Therefore, the selection of high-quality separator paper has been It is the only way for battery manufacturers. Biocompatible silicone rubber and polyester as a new thermoplastic engineering plastic have a wide range of uses, but due to the poor surface wettability of such polymer materials, their application in some special industrial technology fields such as medical treatment and hygiene is limited. application. Most of the surfaces of new polymer materials are hydrophobic, which limits their applications in bonding and other aspects. Plasma surface modification is to optimize the structure and properties of the material surface by plasma, and it is a very forward-looking material surface modification method. The methods of surface activation mainly include chemical etching method, optical radiation method, plasma treatment method, ion implantation method, surface graft polymerization method, etc. Plasma surface modification is to optimize the structure of the material surface by discharging plasma. Because of its specific environment, cost and other advantages, it has become a commonly used material surface modification method in the industry. PIFE, PE, silicone rubber polyester, banner samples, all can be processed by continuous drive plasma. When the power is the same, the modification effect of plasma is Ar+H, N2, O2 in descending order. The increase of power is not conducive to the improvement of the hydrophilicity of the PIFE sample surface. This is because the high-energy particles in the plasma increase significantly under high power, which strengthens the impact on the surface of the material and makes some active groups on the surface inactive. , thereby reducing the introduction of reactive groups. When the discharge voltage is greater than 10Pa and less than 50Pa, the pressure has no obvious effect on the contact angle. However, when the air pressure is greater than 50Pa, the contact angle increases instead, which may be due to the high air pressure that makes it difficult for the gas to be completely ionized, thus affecting the modification of the PTFE surface. Plasma endows the material with new surface properties, but the effect of plasma surface treatment has a problem of timeliness. It shows a certain change with the placement time. With the extension of time, the surface contact angle will gradually increase. The reasons for the aging wettability decay of plasma treated but not grafted may be multi-faceted, which may be caused by the newly introduced hydrophilic groups sneaking into the surface of the material after being placed for a period of time; it may also be caused by surface generation. The cross-linking chemical reaction reduces the hydrophilicity of the material surface. Therefore, in order to prevent the failure of the plasma-treated surface, grafting, bonding and other treatments must be carried out within a specified time to maintain and make full use of its modification effect. Plasma contains a large number of active particles such as electrons, ions, excited atoms, molecules and free radicals. These active particles interact with polymer materials to cause various physical phenomena such as oxidation, reduction, cracking, cross-linking and polymerization on the surface of the material. And chemical reaction, so as to optimize the surface properties of the material, increase the surface hygroscopicity (or hydrophobicity), dyeability, adhesion, antistatic and biocompatibility. Plasma realizes the surface modification of polymer materials PTFE, PE battery separator, silicone rubber and polyester. Plasma working conditions have a significant effect on improving the hydrophilicity of PITFE material surfaces. After plasma treatment, a large number of polar groups are introduced on the surface of the material, which is the reason for improving its hydrophilicity.

Study the working environment of plasma to improve the hydrophilicity of PITFE material surface

(Summary description)Study the working environment of plasma to improve the hydrophilicity of PITFE material surface:
Polytetrafluoroethylene (PIFE) has been widely used in industrial applications because of its unique properties such as excellent chemical stability, dielectric properties, extremely low coefficient of kinetic friction, good machinability and flame retardancy. Separator paper is also called polyethylene (PE) film. Its function in lithium-ion batteries is to isolate the positive and negative materials. The quality of the separator paper directly affects the safety performance and capacity of the battery. Therefore, the selection of high-quality separator paper has been It is the only way for battery manufacturers. Biocompatible silicone rubber and polyester as a new thermoplastic engineering plastic have a wide range of uses, but due to the poor surface wettability of such polymer materials, their application in some special industrial technology fields such as medical treatment and hygiene is limited. application.
Most of the surfaces of new polymer materials are hydrophobic, which limits their applications in bonding and other aspects. Plasma surface modification is to optimize the structure and properties of the material surface by plasma, and it is a very forward-looking material surface modification method. The methods of surface activation mainly include chemical etching method, optical radiation method, plasma treatment method, ion implantation method, surface graft polymerization method, etc. Plasma surface modification is to optimize the structure of the material surface by discharging plasma. Because of its specific environment, cost and other advantages, it has become a commonly used material surface modification method in the industry. PIFE, PE, silicone rubber polyester, banner samples, all can be processed by continuous drive plasma. When the power is the same, the modification effect of plasma is Ar+H, N2, O2 in descending order. The increase of power is not conducive to the improvement of the hydrophilicity of the PIFE sample surface. This is because the high-energy particles in the plasma increase significantly under high power, which strengthens the impact on the surface of the material and makes some active groups on the surface inactive. , thereby reducing the introduction of reactive groups.
When the discharge voltage is greater than 10Pa and less than 50Pa, the pressure has no obvious effect on the contact angle. However, when the air pressure is greater than 50Pa, the contact angle increases instead, which may be due to the high air pressure that makes it difficult for the gas to be completely ionized, thus affecting the modification of the PTFE surface. Plasma endows the material with new surface properties, but the effect of plasma surface treatment has a problem of timeliness. It shows a certain change with the placement time. With the extension of time, the surface contact angle will gradually increase. The reasons for the aging wettability decay of plasma treated but not grafted may be multi-faceted, which may be caused by the newly introduced hydrophilic groups sneaking into the surface of the material after being placed for a period of time; it may also be caused by surface generation. The cross-linking chemical reaction reduces the hydrophilicity of the material surface. Therefore, in order to prevent the failure of the plasma-treated surface, grafting, bonding and other treatments must be carried out within a specified time to maintain and make full use of its modification effect.
Plasma contains a large number of active particles such as electrons, ions, excited atoms, molecules and free radicals. These active particles interact with polymer materials to cause various physical phenomena such as oxidation, reduction, cracking, cross-linking and polymerization on the surface of the material. And chemical reaction, so as to optimize the surface properties of the material, increase the surface hygroscopicity (or hydrophobicity), dyeability, adhesion, antistatic and biocompatibility. Plasma realizes the surface modification of polymer materials PTFE, PE battery separator, silicone rubber and polyester. Plasma working conditions have a significant effect on improving the hydrophilicity of PITFE material surfaces. After plasma treatment, a large number of polar groups are introduced on the surface of the material, which is the reason for improving its hydrophilicity.

  • Categories:Technical Support
  • Author:Plasma cleaning machine-CRF plasma plasma equipment-plasma surface treatment machine manufacturer-chengfeng intelligent manufacturing
  • Origin:
  • Time of issue:2022-08-21 15:23
  • Views:
Information

Study the working environment of plasma to improve the hydrophilicity of PITFE material surface:
Polytetrafluoroethylene (PIFE) has been widely used in industrial applications because of its unique properties such as excellent chemical stability, dielectric properties, extremely low coefficient of kinetic friction, good machinability and flame retardancy. Separator paper is also called polyethylene (PE) film. Its function in lithium-ion batteries is to isolate the positive and negative materials. The quality of the separator paper directly affects the safety performance and capacity of the battery. Therefore, the selection of high-quality separator paper has been It is the only way for battery manufacturers. Biocompatible silicone rubber and polyester as a new thermoplastic engineering plastic have a wide range of uses, but due to the poor surface wettability of such polymer materials, their application in some special industrial technology fields such as medical treatment and hygiene is limited. application.

Most of the surfaces of new polymer materials are hydrophobic, which limits their applications in bonding and other aspects. Plasma surface modification is to optimize the structure and properties of the material surface by plasma, and it is a very forward-looking material surface modification method. The methods of surface activation mainly include chemical etching method, optical radiation method, plasma treatment method, ion implantation method, surface graft polymerization method, etc. Plasma surface modification is to optimize the structure of the material surface by discharging plasma. Because of its specific environment, cost and other advantages, it has become a commonly used material surface modification method in the industry. PIFE, PE, silicone rubber polyester, banner samples, all can be processed by continuous drive plasma. When the power is the same, the modification effect of plasma is Ar+H, N2, O2 in descending order. The increase of power is not conducive to the improvement of the hydrophilicity of the PIFE sample surface. This is because the high-energy particles in the plasma increase significantly under high power, which strengthens the impact on the surface of the material and makes some active groups on the surface inactive. , thereby reducing the introduction of reactive groups.
When the discharge voltage is greater than 10Pa and less than 50Pa, the pressure has no obvious effect on the contact angle. However, when the air pressure is greater than 50Pa, the contact angle increases instead, which may be due to the high air pressure that makes it difficult for the gas to be completely ionized, thus affecting the modification of the PTFE surface. Plasma endows the material with new surface properties, but the effect of plasma surface treatment has a problem of timeliness. It shows a certain change with the placement time. With the extension of time, the surface contact angle will gradually increase. The reasons for the aging wettability decay of plasma treated but not grafted may be multi-faceted, which may be caused by the newly introduced hydrophilic groups sneaking into the surface of the material after being placed for a period of time; it may also be caused by surface generation. The cross-linking chemical reaction reduces the hydrophilicity of the material surface. Therefore, in order to prevent the failure of the plasma-treated surface, grafting, bonding and other treatments must be carried out within a specified time to maintain and make full use of its modification effect.
Plasma contains a large number of active particles such as electrons, ions, excited atoms, molecules and free radicals. These active particles interact with polymer materials to cause various physical phenomena such as oxidation, reduction, cracking, cross-linking and polymerization on the surface of the material. And chemical reaction, so as to optimize the surface properties of the material, increase the surface hygroscopicity (or hydrophobicity), dyeability, adhesion, antistatic and biocompatibility. Plasma realizes the surface modification of polymer materials PTFE, PE battery separator, silicone rubber and polyester. Plasma working conditions have a significant effect on improving the hydrophilicity of PITFE material surfaces. After plasma treatment, a large number of polar groups are introduced on the surface of the material, which is the reason for improving its hydrophilicity.

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