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Vip launches university-style training program
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LA HABRA, Calif.—Vip Rubber and Plastic Co. has taken on-the-job training of its employees to a new level. With an eye on continuous companywide improvement, the firm launched a university-...
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LA HABRA, Calif.—Vip Rubber and Plastic has taken on-the-job training of its employees to a new level. LA HABRA, Calif.—Vip Rubber and Plastic has taken on-the-job training of its employees to a new level. $LA HABRA, Calif.—Vip Rubber and Plastic has taken on-the-job training of its employees to a new level.
Enviro taking steps toward scrap-tire derived fuel
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STOCKHOLM—Swedish recycled carbon black maker Enviro Systems A.B. is touring the results of a study showing that the pyrolysis oil it extracts from scrap tires can be used as fuel. The study ...
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STOCKHOLM—Swedish recycled carbon black maker Enviro is touring the results of a study showing that the pyrolysis oil it extracts from scrap tires can be used as fuel. STOCKHOLM—Swedish recycled carbon black maker Enviro is touring the results of a study showing that the pyrolysis oil it extracts from scrap tires can be used as fuel. $STOCKHOLM—Swedish recycled carbon black maker Enviro is touring the results of a study showing that the pyrolysis oil it extracts from scrap tires can be used as fuel.
EPA racing clock for 50-state emissions plan
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WASHINGTON—Acting EPA Administrator Andrew Wheeler defended Jan. 16 the Trump administration's proposal to scale back tailpipe emissions standards and held out hope for an agreement with...
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WASHINGTON—Acting EPA Administrator Andrew Wheeler defended the Trump administration's proposal to scale back tailpipe emissions standards and held out hope for an agreement with California on a national program that would make compliance less costly for auto makers. WASHINGTON—Acting EPA Administrator Andrew Wheeler defended the Trump administration's proposal to scale back tailpipe emissions standards and held out hope for an agreement with California on a national program that would make compliance less costly for auto makers. $WASHINGTON—Acting EPA Administrator Andrew Wheeler defended the Trump administration's proposal to scale back tailpipe emissions standards and held out hope for an agreement with California on a national program that would make compliance less costly for auto makers.
Experts say electric vehicles put greater emphasis on lightweight parts
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DETROIT—In case you hadn't noticed, what with the steady background thrum of the U.S. auto industry having just wrapped up its fourth-strongest sales year on record—while at the same...
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DETROIT—The global auto industry has taken a big shine to electric vehicles, and the shockwave is hitting auto makers, materials companies and parts suppliers at nearly every tier level. DETROIT—The global auto industry has taken a big shine to electric vehicles, and the shockwave is hitting auto makers, materials companies and parts suppliers at nearly every tier level. $DETROIT—The global auto industry has taken a big shine to electric vehicles, and the shockwave is hitting auto makers, materials companies and parts suppliers at nearly every tier level.
Rivian CEO RJ Scaringe: Making EVs is 'the hardest part' of being an auto maker
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DETROIT—With its battery-electric concept pickup and full-size SUV now fully revealed and with orders on the books, upstart auto maker Rivian Automotive now hits "the hardest part" of...
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DETROIT—With its battery-electric concept pickup and full-size SUV now fully revealed and with orders on the books, upstart auto maker Rivian Automotive now hits "the hardest part" of becoming a full-on auto maker: actually making autos. DETROIT—With its battery-electric concept pickup and full-size SUV now fully revealed and with orders on the books, upstart auto maker Rivian Automotive now hits "the hardest part" of becoming a full-on auto maker: actually making autos. $DETROIT—With its battery-electric concept pickup and full-size SUV now fully revealed and with orders on the books, upstart auto maker Rivian Automotive now hits "the hardest part" of becoming a full-on auto maker: actually making autos.
Wacky World of Rubber: Goodbye to Le Grand K
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Deep in a vault just outside of Paris, a hunk of metal sits vacuum-sealed under three jars. This was arguably the most important piece of metal in the world. Now, it's just another rock....
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Deep in a vault just outside of Paris, a hunk of metal sits vacuum-sealed under three jars. This was arguably the most important piece of metal in the world—the universal definition of a kilogram. Now, it's just another rock. Deep in a vault just outside of Paris, a hunk of metal sits vacuum-sealed under three jars. This was arguably the most important piece of metal in the world—the universal definition of a kilogram. Now, it's just another rock. $Deep in a vault just outside of Paris, a hunk of metal sits vacuum-sealed under three jars. This was arguably the most important piece of metal in the world—the universal definition of a kilogram. Now, it's just another rock.
Lord looks to keep pushing past $1 billion sales milestone
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CARY, N.C.—There's always another summit in the business world, but that doesn't mean Lord Corp. can't stop and enjoy the view after reaching a pretty big one. The Cary-based provider of...
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CARY, N.C.—There's always another summit in the business world, but that doesn't mean Lord Corp. can't stop and enjoy the view after reaching a pretty big one. CARY, N.C.—There's always another summit in the business world, but that doesn't mean Lord Corp. can't stop and enjoy the view after reaching a pretty big one. $ CARY, N.C.—There's always another summit in the business world, but that doesn't mean Lord Corp. can't stop and enjoy the view after reaching a pretty big one.
Trump expected to propose legislation to broaden powers to impose tariffs (updated)
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WASHINGTON—Industry officials are waiting to see the details of a Trump administration draft bill that would substantially change the imposition of tariffs on foreign goods. The...
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WASHINGTON—Industry officials are waiting to see the details of a Trump administration draft bill that would substantially change the imposition of tariffs on foreign goods. WASHINGTON—Industry officials are waiting to see the details of a Trump administration draft bill that would substantially change the imposition of tariffs on foreign goods. $WASHINGTON—Industry officials are waiting to see the details of a Trump administration draft bill that would substantially change the imposition of tariffs on foreign goods.
BASF plans major R&D projects to cut carbon emissions
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LUDWIGSHAFEN, Germany—BASF S.E. has announced a number of R&D projects to reduce carbon emissions as part of its new corporate strategy, which will see the company becoming CO2-neutral...
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LUDWIGSHAFEN, Germany—BASF has announced a number of R&D projects to reduce carbon emissions as part of its new corporate strategy, which will see the company becoming CO2-neutral by 2030. LUDWIGSHAFEN, Germany—BASF has announced a number of R&D projects to reduce carbon emissions as part of its new corporate strategy, which will see the company becoming CO2-neutral by 2030. $LUDWIGSHAFEN, Germany—BASF has announced a number of R&D projects to reduce carbon emissions as part of its new corporate strategy, which will see the company becoming CO2-neutral by 2030.
Cooper Standard looking beyond automotive, diversifying with acquisitions
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NOVI, Mich.—Cooper Standard Automotive Inc. changed a lot in 2018. After executing five major deals—four acquisitions and a divestiture of one of its primary product...
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NOVI, Mich.—After executing five major deals—four acquisitions and a divestiture of one of its primary product lines—Cooper Standard has reshaped its core product offerings and set the foundation for its non-automotive business. NOVI, Mich.—After executing five major deals—four acquisitions and a divestiture of one of its primary product lines—Cooper Standard has reshaped its core product offerings and set the foundation for its non-automotive business. $ NOVI, Mich.—After executing five major deals—four acquisitions and a divestiture of one of its primary product lines—Cooper Standard has reshaped its core product offerings and set the foundation for its non-automotive business.
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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