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SRM adds products, shows continued growth
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MARCO ISLAND, Fla.—SRM Industries Inc., a supplier of protective products and accessories used in the hose industry, has introduced two new products as the company continues to see strong...
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MARCO ISLAND, Fla.—SRM Industries, a supplier of protective products and accessories used in the hose industry, has introduced two new products as the company continues to see strong sales growth. MARCO ISLAND, Fla.—SRM Industries, a supplier of protective products and accessories used in the hose industry, has introduced two new products as the company continues to see strong sales growth. $MARCO ISLAND, Fla.—SRM Industries, a supplier of protective products and accessories used in the hose industry, has introduced two new products as the company continues to see strong sales growth.
Trump CAFE proposal faces legal thicket
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WASHINGTON—For the federal government's proposed freeze of the Corporate Average Fuel Economy Standard to prevail, Trump administration officials will have to win on the legal battlefield....
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WASHINGTON—For the federal government's proposed freeze of the Corporate Average Fuel Economy Standard to prevail, Trump administration officials will have to win on the legal battlefield. WASHINGTON—For the federal government's proposed freeze of the Corporate Average Fuel Economy Standard to prevail, Trump administration officials will have to win on the legal battlefield. $WASHINGTON—For the federal government's proposed freeze of the Corporate Average Fuel Economy Standard to prevail, Trump administration officials will have to win on the legal battlefield.
3M adds to long-term wearable adhesives line
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ST. PAUL, Minn.—3M Inc. already is expanding its popular line of extended wear medical adhesives. The firm in June released 4077, a single coated medical extended wear adhesive nonwoven...
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ST. PAUL, Minn.—3M already is expanding its popular line of extended wear medical adhesives. ST. PAUL, Minn.—3M already is expanding its popular line of extended wear medical adhesives. $ ST. PAUL, Minn.—3M already is expanding its popular line of extended wear medical adhesives.
West to close Indiana plant, consolidate Florida sites
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EXTON, Pa.—West Pharmaceutical Services Inc. plans to close its contract manufacturing plant in Frankfort, Ind., and consolidate its facility in Clearwater, Fla., with one in nearby St....
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EXTON, Pa.—West Pharmaceutical plans to close its contract manufacturing plant in Frankfort, Ind., and consolidate its facility in Clearwater, Fla., with one in nearby St. Petersburg, Fla. EXTON, Pa.—West Pharmaceutical plans to close its contract manufacturing plant in Frankfort, Ind., and consolidate its facility in Clearwater, Fla., with one in nearby St. Petersburg, Fla. $EXTON, Pa.—West Pharmaceutical plans to close its contract manufacturing plant in Frankfort, Ind., and consolidate its facility in Clearwater, Fla., with one in nearby St. Petersburg, Fla.
Photos: GRI donates computers school in Sri Lanka
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MAKANDURA, Sri Lanka—Specialty tire manufacturer Global Rubber Industries Pvt. Ltd. has donated 10 computer units with power backups to the Nalawalana Kanishta School in Makandura, a village ...
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MAKANDURA, Sri Lanka—Specialty tire manufacturer Global Rubber Industries has donated 10 computer units with power backups to the Nalawalana Kanishta School in Makandura, a village that GRI says didn't have the means to teach computer education previously. MAKANDURA, Sri Lanka—Specialty tire manufacturer Global Rubber Industries has donated 10 computer units with power backups to the Nalawalana Kanishta School in Makandura, a village that GRI says didn't have the means to teach computer education previously. $MAKANDURA, Sri Lanka—Specialty tire manufacturer Global Rubber Industries has donated 10 computer units with power backups to the Nalawalana Kanishta School in Makandura, a village that GRI says didn't have the means to teach computer education previously.
Tenneco, Federal-Mogul deal close to completion
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MILAN, Ohio—Tenneco Inc. still is in the process of closing its acquisition of Federal-Mogul L.L.C., which was announced in April. The $5.4 billion deal is expected to close in the second...
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MILAN, Ohio—Tenneco still is in the process of closing its acquisition of Federal-Mogul, which was announced in April. MILAN, Ohio—Tenneco still is in the process of closing its acquisition of Federal-Mogul, which was announced in April. $MILAN, Ohio—Tenneco still is in the process of closing its acquisition of Federal-Mogul, which was announced in April.
Reed Rubber uses consistency to help cement 95-year legacy
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ST. LOUIS—Consistency is tough to establish, especially for a long period of time. But 95 years after its founding, Reed Rubber Products Inc. is still thriving. The St. Louis-based custom...
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ST. LOUIS—Consistency is tough to establish, especially for a long period of time. But 95 years after its founding, Reed Rubber Products is still thriving. ST. LOUIS—Consistency is tough to establish, especially for a long period of time. But 95 years after its founding, Reed Rubber Products is still thriving. $ST. LOUIS—Consistency is tough to establish, especially for a long period of time. But 95 years after its founding, Reed Rubber Products is still thriving.
Lanxess to sell stake in Arlanxeo to Saudi Aramco
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COLOGNE, Germany—Lanxess A.G. plans to sell its remaining 50 percent stake in Arlanxeo to its joint venture partner Saudi Arabian Oil Co.The two companies signed the sales agreement on Aug. ...
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COLOGNE, Germany—Lanxess plans to sell its remaining 50 percent stake in Arlanxeo to its joint venture partner Saudi Aramco. COLOGNE, Germany—Lanxess plans to sell its remaining 50 percent stake in Arlanxeo to its joint venture partner Saudi Aramco. $COLOGNE, Germany—Lanxess plans to sell its remaining 50 percent stake in Arlanxeo to its joint venture partner Saudi Aramco.
Photos: Rubber Division moves into new headquarters building in Akron
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AKRON—After leasing office space for its entire 108-year history, the Rubber Division of the American Chemical Society finally has a home of its own. The organization, the top technical...
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AKRON—After leasing office space for its entire 108-year history, the Rubber Division of the American Chemical Society finally has a home of its own. AKRON—After leasing office space for its entire 108-year history, the Rubber Division of the American Chemical Society finally has a home of its own. $ AKRON—After leasing office space for its entire 108-year history, the Rubber Division of the American Chemical Society finally has a home of its own.
A living laboratory for connected cars
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ANN ARBOR, Mich.—At this high-tech proving ground, the roads are packed, and there's no tall fence to keep everything hidden from view. The vehicles being tested look no different than what ...
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ANN ARBOR, Mich.—At this high-tech proving ground, the roads are packed, and there's no tall fence to keep everything hidden from view. Amid it all, the University of Michigan Transportation Research Institute is studying how vehicles can communicate with the world around them. ANN ARBOR, Mich.—At this high-tech proving ground, the roads are packed, and there's no tall fence to keep everything hidden from view. Amid it all, the University of Michigan Transportation Research Institute is studying how vehicles can communicate with the world around them. $ANN ARBOR, Mich.—At this high-tech proving ground, the roads are packed, and there's no tall fence to keep everything hidden from view. Amid it all, the University of Michigan Transportation Research Institute is studying how vehicles can communicate with the world around them.
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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