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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, 2002

Natural Rubber Biodegradation in Soil in Relation to the Waste Disposal of Used Latex Products

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Date Published January 1, 2002
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This Report has been authored by:A. Ikram at Rubber Research Institute of Malaysia #with# Amir Hashim at Rubber Research Institute of Malaysia

Biodegradation was studied by burying natural rubber (NR) latex gloves in tropical soils amended with nitrogen (N) and phosphorus (P), and in a composting environment created from dried grass clippings, cattle manure and soil. Manipulating soils to favor microbial growth enhanced biodegradation compared to natural attenuation processes in unamended soils. The mean specific degradation rate of NR glove pieces in a high soil neoprene and nitrile remained intact after 40 weeks, while vinyl showed small weight losses due to plasticizer and other additive losses. In a composting environment, biodegradation rates over a 24-week period were twice that compared to the fertilized treatment in soils, suggesting an efficient means of waste disposal. Leachates of accelerator residues from NR gloves undergoing 12-weeks burial in soil lysimeters were however not significant. Soil degradation of NR condoms were slower compared to gloves with 42% of their initial weights remaining after 48 weeks. In contrast, the manufactured polyurethane condoms were hardly biodegradable. The stimulating effect of nutrient application on indigenous soil microbes, the likely effects of accelerators or antioxidant, or of the interactions of modulus and thickness in affecting NR latex product degradation are discussed.

 
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