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Datwyler opens Delaware plant
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MIDDLETOWN, Del.—The sealing unit of Datwyler Holding A.G. celebrated the grand opening of its new medical manufacturing plant in Middletown. The site represents a $100 million investment,...
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MIDDLETOWN, Del.—The sealing unit of Datwyler Holding celebrated the grand opening of its new medical manufacturing plant in Middletown. MIDDLETOWN, Del.—The sealing unit of Datwyler Holding celebrated the grand opening of its new medical manufacturing plant in Middletown. $MIDDLETOWN, Del.—The sealing unit of Datwyler Holding celebrated the grand opening of its new medical manufacturing plant in Middletown.
Yokohama to combine R&D efforts into new center
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CORNELIUS, N.C.—Yokohama Tire Corp. has opened a new research and development facility in Cornelius, designed to bring together its R&D efforts into one location.Yokohama Development...
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CORNELIUS, N.C.—Yokohama has opened a new research and development facility in Cornelius, designed to bring together its research and development efforts into one location. CORNELIUS, N.C.—Yokohama has opened a new research and development facility in Cornelius, designed to bring together its research and development efforts into one location. $CORNELIUS, N.C.—Yokohama has opened a new research and development facility in Cornelius, designed to bring together its research and development efforts into one location.
Photos: Goodyear tires drive NASCAR tradition
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AKRON—The first thing you sense while you tour the Goodyear Innovation Center Manufacturing facility in Akron is the enormous amount of pride, workmanship and know-how that goes into each of ...
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AKRON—The first thing you sense while you tour the Goodyear Innovation Center Manufacturing facility in Akron is the enormous amount of pride, workmanship and know-how that goes into each of the 4,000-plus racing tires. AKRON—The first thing you sense while you tour the Goodyear Innovation Center Manufacturing facility in Akron is the enormous amount of pride, workmanship and know-how that goes into each of the 4,000-plus racing tires. $AKRON—The first thing you sense while you tour the Goodyear Innovation Center Manufacturing facility in Akron is the enormous amount of pride, workmanship and know-how that goes into each of the 4,000-plus racing tires.
Electrification shaking up rubber auto parts sector
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Electrification is shaking up the automotive parts supply-chain: forcing rubber product companies to add new capabilities to their established areas of expertise in materials science and...
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Electrification is shaking up the automotive parts supply-chain: forcing rubber product companies to add new capabilities to their established areas of expertise in materials science and technology. Electrification is shaking up the automotive parts supply-chain: forcing rubber product companies to add new capabilities to their established areas of expertise in materials science and technology. $Electrification is shaking up the automotive parts supply-chain: forcing rubber product companies to add new capabilities to their established areas of expertise in materials science and technology.
Evonik opens tire silicas plant in South Carolina
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GOOSE CREEK, S.C.—Evonik Industries has inaugurated a precipitated silica plant in South Carolina, aimed at better serving the U.S. tire industry.The $120 million investment comes in...
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GOOSE CREEK, S.C.—Evonik Industries has inaugurated a precipitated silica plant in South Carolina, aimed at better serving the U.S. tire industry. GOOSE CREEK, S.C.—Evonik Industries has inaugurated a precipitated silica plant in South Carolina, aimed at better serving the U.S. tire industry. $GOOSE CREEK, S.C.—Evonik Industries has inaugurated a precipitated silica plant in South Carolina, aimed at better serving the U.S. tire industry.
Long development journey pays off for Tweel, Michelin
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AKRON—For the record, Michelin's Steve Cron isn't a big fan of the name given to the product that has defined much of his 30-year career in the tire industry. That product is the Tweel, the ...
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AKRON—For the record, Michelin's Steve Cron isn't a big fan of the name given to the product that has defined much of his 30-year career in the tire industry. That product is the Tweel, the tire maker's easily recognizable product that combines a non-pneumatic tire with a polyurethane spoked wheel. AKRON—For the record, Michelin's Steve Cron isn't a big fan of the name given to the product that has defined much of his 30-year career in the tire industry. That product is the Tweel, the tire maker's easily recognizable product that combines a non-pneumatic tire with a polyurethane spoked wheel. $AKRON—For the record, Michelin's Steve Cron isn't a big fan of the name given to the product that has defined much of his 30-year career in the tire industry. That product is the Tweel, the tire maker's easily recognizable product that combines a non-pneumatic tire with a polyurethane spoked wheel.
Old Dana taps the fountain of youth
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MAUMEE, Ohio—With little fanfare this year, one of the global auto industry's oldest suppliers began repositioning itself for a business of the future. Dana Inc. has made two key...
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MAUMEE, Ohio—With little fanfare this year, one of the global auto industry's oldest suppliers began repositioning itself for a business of the future. MAUMEE, Ohio—With little fanfare this year, one of the global auto industry's oldest suppliers began repositioning itself for a business of the future. $MAUMEE, Ohio—With little fanfare this year, one of the global auto industry's oldest suppliers began repositioning itself for a business of the future.
Kent Elastomer to expand headquarters
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KENT, Ohio—Kent Elastomer Products Inc. is expanding its headquarters to accommodate its growing work force.The firm broke ground on an extension to the office area of its Kent facility,...
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KENT, Ohio—Kent Elastomer Products is expanding its headquarters to accommodate its growing work force. KENT, Ohio—Kent Elastomer Products is expanding its headquarters to accommodate its growing work force. $KENT, Ohio—Kent Elastomer Products is expanding its headquarters to accommodate its growing work force.
Private equity firm KKR set to acquire Minnesota Rubber & Plastics
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MINNEAPOLIS—Norwest Equity Partners has agreed to sell Quadion L.L.C., which does business as Minnesota Rubber & Plastics, to global investment firm KKR & Co. L.P. Terms of the...
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MINNEAPOLIS—Norwest Equity Partners has agreed to sell Quadion, which does business as Minnesota Rubber & Plastics, to global investment firm KKR. MINNEAPOLIS—Norwest Equity Partners has agreed to sell Quadion, which does business as Minnesota Rubber & Plastics, to global investment firm KKR. $ MINNEAPOLIS—Norwest Equity Partners has agreed to sell Quadion, which does business as Minnesota Rubber & Plastics, to global investment firm KKR.
Video: Miller calls Louisville Rubber Division meeting a success LOUISVILLE, Ky.—This week's ACS Rubber Division's International Elastomer Conference has been a success on all levels, according to Executive Director Ed Miller. LOUISVILLE, Ky.—This week's ACS Rubber Division's International Elastomer Conference has been a success on all levels, according to Executive Director Ed Miller. $LOUISVILLE, Ky.—This week's ACS Rubber Division's International Elastomer Conference has been a success on all levels, according to Executive Director Ed Miller.
Digital Edition
Digital Edition
Published on January 1, 2006

Surface Manipulation of Silicone Rubber Materials by SoftPlasma-Polymerisation

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Date Published January 1, 2006
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This Report has been authored by:Thomas Christensen at Nanon A/S

Silicone rubber becomes more and more common in medical, automotive and other industrial applications. The material has excellent mechanical and chemical properties and thermal resistance. However, one of the drawbacks of silicone rubber often is the low surface tension that makes it impossible to coat, print or glue the material. There exist a lot of surface treatment techniques such as flame and corona treatment, atmospheric plasma etching, low pressure plasma treatment or wet chemical etching that can be used to activate polymer surfaces prior to a coating. Wet chemical etching is always connected to great amounts of toxic chemical and waste. Most plasma activation techniques are quite usable for activation of polymer surfaces, but often it is not possible to activate three-dimensional shaped items. Furthermore, the durability of the activation is short, meaning that especially silicone rubber has to be coated a short time after the activation step. Nanon A/S has developed the so-called “Softplasma™” that can be used favorably for modifying surface properties of silicone rubber because of its low energy level. The surface is etched for a short time, and afterwards a thin polymer layer is plasma polymerized on the surface. The properties of the polymer layer are dependent on the functional groups of the initiated monomer that can be chosen from a broad list of compounds. Compared to other plasma types, the Softplasma™ is able to prevent the functional groups of these monomers from decomposing and activates only the sites that are supposed to polymerize. The surface itself will not be decomposed as is often seen in high energy plasma types. Only some bonds of the outer layer molecules will broken and react with monomer fragments which give strong bonds between the silicone rubber surface and the thin plasma coating. Softplasma™ can be used to make e.g. a PU like surface on silicone rubber to coat afterwards with a PU-varnish or in contrary to make a silicone like surface on a hard plastic to mold afterward with LSR.

 
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