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A partially or completely ionised gas with approximately equal amounts of positively and negatively charged particles is referred to as plasma. Since plasma has characteristics of both gases and liquids but is neither a gas nor a liquid, some scientists have called it the "fourth state of matter."
The clean surface is left behind because the broken-down molecules are effectively removed from the surface thanks to the vacuum atmosphere. In order to clean important surfaces before additional processing, such as bonding, coating, or assembly, vacuum plasma cleaners are frequently used in a variety of sectors, including semiconductor manufacturing, medical device manufacturing, and aircraft. Compared to conventional cleaning techniques, they have benefits like less solvent usage, better surface adhesion, and better process control.
Ionized gases produced at temperatures between 0.1 and 2 torr are used to create low temperature plasmas, which are used to modify surfaces and clear organic materials. These plasma kinds function inside a vacuum chamber where atmospheric gases have usually been expelled below 0.1 torr. Low pressure enables accelerated electrons and ions to travel along a comparatively lengthy open route. The reaction continues to occur at low temperature because the ions and neutral particles are at or near ambient temperatures, and because the lengthy free route of electrons, which are at high temperature or electron volt levels, collide with molecules relatively infrequently at this pressure.
Eltech Engineers supplies plasma solutions to improve the surface energy of plastic and rubber components to ensure good adhesion of printing inks, paints, adhesives, coatings etc. and for the surface cleaning of plastic, rubber and metal parts. Plasma surface modification equipment is widely used throughout a diverse range of industries and onto an ever increasing range of substrates. Our growing list of customers includes many in the following industries: medical, automotive component, electronics, cable, pipe and many more. Through our many years of experience and continuous product development we have become one of the leading suppliers of Plasma Surface Modification equipment, Eltech Engineers is here to help you find the most appropriate surface modification technology and equipment to solve your problem.
Vacuum Plasma provides innovative surface modification technology and offers effective solutions to adhesion and wetting problems in many industries. Component preparation using plasma treatment is an important step prior to printing, bonding, painting, varnishing and coating processes.Plasma surface modification provides an economical solution for the cleaning and activation of part surfaces before further processing.
To obtain good adhesion to low surface energy materials i.e. low or non-polar materials like PP, PE, HDPE etc. we need to modify the surface i.e. increase its polarity. Placing your components in the highly active environment that exists inside a plasma chamber is the ideal method to increase the material's polarity. The free radicals and other particles that exist in the highly active plasma discharge can attach to the material surface resulting in the formation of additional polar groups on the material surface, these have a strong chemical attraction to inks, paint, coatings, adhesives etc. leading to significantly enhanced surface energy and therefore adhesion.
