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Video: Puskas gives advice to women facing discrimination
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BEACHWOOD, Ohio—Throughout her career in both industry and academia, Judit Puskas experienced firsthand the discrimination females face in the rubber industry. Even back to university...
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BEACHWOOD, Ohio—Throughout her career in both industry and academia, Judit Puskas experienced firsthand the discrimination females face in the rubber industry. BEACHWOOD, Ohio—Throughout her career in both industry and academia, Judit Puskas experienced firsthand the discrimination females face in the rubber industry. $BEACHWOOD, Ohio—Throughout her career in both industry and academia, Judit Puskas experienced firsthand the discrimination females face in the rubber industry.
Semperit suspends outlook after tough first half
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VIENNA—With guidance from a new management team, Semperit Group took the first steps in a transition phase intended to restore the profitability of key business segments."We will not leave...
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VIENNAŚWith guidance from a new management team, Semperit Group took the first steps in a transition phase intended to restore the profitability of key business segments. VIENNAŚWith guidance from a new management team, Semperit Group took the first steps in a transition phase intended to restore the profitability of key business segments. $VIENNAŚWith guidance from a new management team, Semperit Group took the first steps in a transition phase intended to restore the profitability of key business segments.
Barcode system eliminates drum mix-ups during LSR molding
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OFTERING, Austria—Elmet GmbH, an Austrian operating system supplier for the injection molding of two-component liquid silicone rubbers, introduced a standardized barcode system for drum...
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OFTERING, AustriaŚElmet, an operating system supplier for the injection molding of two-component liquid silicone rubbers, introduced a standardized barcode system for drum labeling and recognition. OFTERING, AustriaŚElmet, an operating system supplier for the injection molding of two-component liquid silicone rubbers, introduced a standardized barcode system for drum labeling and recognition. $OFTERING, AustriaŚElmet, an operating system supplier for the injection molding of two-component liquid silicone rubbers, introduced a standardized barcode system for drum labeling and recognition.
NR supply, demand doesn't square with price trends
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Some things in life just don't make sense. Take the current state of natural rubber pricing supply and demand. According to the Association of Natural Rubber Producing Countries, there's a current ...
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Some things in life just don't make sense. Take the current state of natural rubber pricing supply and demand. Some things in life just don't make sense. Take the current state of natural rubber pricing supply and demand. $Some things in life just don't make sense. Take the current state of natural rubber pricing supply and demand.
Jobs, supply chain, growth: Why auto is an important part of NAFTA
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TORONTO—The future of Canada's more than one million automotive jobs has emerged as a critical part of what's at stake at the NAFTA renegotiation table in Washington after the U.S. chief...
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TORONTO—The future of Canada's more than one million automotive jobs has emerged as a critical part of what's at stake at the NAFTA renegotiation table in Washington. TORONTO—The future of Canada's more than one million automotive jobs has emerged as a critical part of what's at stake at the NAFTA renegotiation table in Washington. $TORONTO—The future of Canada's more than one million automotive jobs has emerged as a critical part of what's at stake at the NAFTA renegotiation table in Washington.
Continental, Kordsa partner on adhesion system development
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HANOVER, Germany—Continental A.G.'s tire division is partnering with Kordsa Inc., an international supplier of textile reinforcing materials for the tire industry, to develop a sustainable...
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HANOVER, Germany—Continental's tire division is partnering with Kordsa to develop a sustainable adhesion system standard for bonding textile reinforcing materials to rubber-based compounds. HANOVER, Germany—Continental's tire division is partnering with Kordsa to develop a sustainable adhesion system standard for bonding textile reinforcing materials to rubber-based compounds. $HANOVER, Germany—Continental's tire division is partnering with Kordsa to develop a sustainable adhesion system standard for bonding textile reinforcing materials to rubber-based compounds.
Funding leads Fluence Analytics to new phase
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NEW ORLEANS—Back in May, Fluence Analytics said it had raised a Series A round of funding led by Energy Innovation Capital, a venture capital firm that invests in growing companies in energy ...
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NEW ORLEANS—With a Series A round of funding led by Energy Innovation Capital, Fluence Analytics has set a course for growth. NEW ORLEANS—With a Series A round of funding led by Energy Innovation Capital, Fluence Analytics has set a course for growth. $NEW ORLEANS—With a Series A round of funding led by Energy Innovation Capital, Fluence Analytics has set a course for growth.
Barco opens new Georgia plant
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TALLAPOOSA, Ga.—British American Rubber Co., a subsidiary of Montague Investments L.L.C., invested about $10 million to build a specialty rubber compounding facility in Tallapoosa, according ...
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TALLAPOOSA, Ga.—British American Rubber, a subsidiary of Montague Investments, invested about $10 million to build a specialty rubber compounding facility in Tallapoosa, according to President Mike Cash. TALLAPOOSA, Ga.—British American Rubber, a subsidiary of Montague Investments, invested about $10 million to build a specialty rubber compounding facility in Tallapoosa, according to President Mike Cash. $TALLAPOOSA, Ga.—British American Rubber, a subsidiary of Montague Investments, invested about $10 million to build a specialty rubber compounding facility in Tallapoosa, according to President Mike Cash.
Decentralized approach works for Singer
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SAN ANTONIO—For SBP Holdings, parent of rubber goods distributor Singer Equities Inc., it was a big deal when it boosted the size of its corporate staff by 33 percent. That's right, it went ...
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SAN ANTONIO—SBP, parent of rubber goods distributor Singer Equities, has stuck to a decentralized business approach as it has grown significantly, aided by 19 acquisitions made since 1999. SAN ANTONIO—SBP, parent of rubber goods distributor Singer Equities, has stuck to a decentralized business approach as it has grown significantly, aided by 19 acquisitions made since 1999. $SAN ANTONIO—SBP, parent of rubber goods distributor Singer Equities, has stuck to a decentralized business approach as it has grown significantly, aided by 19 acquisitions made since 1999.
Katz sees growth opportunities for polyurethanes
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Linda Katz, the Polyurethanes Manufacturers Association's new president, is very familiar with the plastics world. Her father ran an injection molding company in Wisconsin and she worked there as ...
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Linda Katz discusses the potential of polyurethanes in a variety of industries. Linda Katz discusses the potential of polyurethanes in a variety of industries. $Linda Katz discusses the potential of polyurethanes in a variety of industries.
Digital Edition
Digital Edition
Published on September 1, 2002

IMPROVED POLYMER PROCESSING FOR CRITICAL EXTRUSIONS

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Date Published September 1, 2002
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The processability of a silane coupled silica-black-solution SBR with functional additives in an internal mixer and extruder was investigated.  The processability, rheological property, and vulcanization property of their composite were measured as a function of storage conditions including time and humidity. The processability was significantly improved by the addition of the processing additives.  The processability and vulcanization property of compounds were significantly influenced by the presence of the moisture and the effects of moisture were proportional to storage time. Processing additive added compounds exhibited better processability than without-additive compound (Control) when they were processed through single screw extruder and their viscosities were lower than the Control.  The viscosities of the humid specimens exhibited close to each other and proportionally increased as the storage time increased.  The degree of cross-linking of humid specimens was higher than that of the dry specimens.  As storage time increases, while the degree of cross-linking of the dry specimens remain constant that of the humid specimens increased especially after 5 days.  Processing aid added compounds exhibited lower order of cross-linking and longer cure time than the Control.  The cure time of the humid specimens was faster than that of the dry specimens and the rate changed on storage time.  As storage time increases, while the cure time of the dry specimens were different depending on mixing sequence; however that of the humid specimens decreased. 
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