Current Issue
×

Top Stories

Title Issue Date Category Formats Records Price
Rubber & Plastics News to honor rubber industry's best places to work
View Description View Full Details
AKRON—Rubber & Plastics News is launching a search to identify the Best Places to Work in the rubber industry. The publication, working with the Best Companies Group, is inviting U.S....
View Full Details »
AKRON—Rubber & Plastics News is launching a search to identify the Best Places to Work in the rubber industry. AKRON—Rubber & Plastics News is launching a search to identify the Best Places to Work in the rubber industry. $AKRON—Rubber & Plastics News is launching a search to identify the Best Places to Work in the rubber industry.
Editorial: Freudenberg takes early steps to ensure future
View Description View Full Details
Freudenberg Sealing Technologies is one firm that is taking a proactive approach to make sure that the fast-growing trend of electrification doesn't leave it behind, sealing deals that bring it...
View Full Details »
Freudenberg Sealing Technologies is one firm that is taking a proactive approach to make sure that the fast-growing trend of electrification doesn't leave it behind, sealing deals that bring it the know-how to participate in this business of the not-so-distant future. Freudenberg Sealing Technologies is one firm that is taking a proactive approach to make sure that the fast-growing trend of electrification doesn't leave it behind, sealing deals that bring it the know-how to participate in this business of the not-so-distant future. $Freudenberg Sealing Technologies is one firm that is taking a proactive approach to make sure that the fast-growing trend of electrification doesn't leave it behind, sealing deals that bring it the know-how to participate in this business of the not-so-distant future.
Trelleborg to expand Czech OTR, farm tire plant
View Description View Full Details
TRELLEBORG, Sweden—Trelleborg A.B. is moving forward with a previously disclosed expansion plan at its OTR and farm tire plant in Otrokovice, Czech Republic, according to a company...
View Full Details »
TRELLEBORG, Sweden—Trelleborg is moving forward with a previously disclosed expansion plan at its OTR and farm tire plant in Otrokovice, Czech Republic. TRELLEBORG, Sweden—Trelleborg is moving forward with a previously disclosed expansion plan at its OTR and farm tire plant in Otrokovice, Czech Republic. $TRELLEBORG, Sweden—Trelleborg is moving forward with a previously disclosed expansion plan at its OTR and farm tire plant in Otrokovice, Czech Republic.
Michelin, Goodyear top J.D. Power Consumer Satisfaction Study
View Description View Full Details
COSTA MESA, Calif.—Michelin ranked first in three of four vehicle segments in J.D. Power's 2019 U.S. Original Equipment Tire Customer Satisfaction Study, with Goodyear ranking highest in a...
View Full Details »
COSTA MESA, Calif.—Michelin ranked first in three of four vehicle segments in J.D. Power's 2019 U.S. Original Equipment Tire Customer Satisfaction Study, with Goodyear ranking highest in a fourth. COSTA MESA, Calif.—Michelin ranked first in three of four vehicle segments in J.D. Power's 2019 U.S. Original Equipment Tire Customer Satisfaction Study, with Goodyear ranking highest in a fourth. $COSTA MESA, Calif.—Michelin ranked first in three of four vehicle segments in J.D. Power's 2019 U.S. Original Equipment Tire Customer Satisfaction Study, with Goodyear ranking highest in a fourth.
ZF acquires 60 percent of mobility provider 2getthere
View Description View Full Details
FRIEDRICHSHAFEN, Germany—ZF Friedrichshafen A.G. has acquired a majority stake in European mobility provider 2getthere.The world's fifth-largest auto supplier said March 19 that it acquired ...
View Full Details »
FRIEDRICHSHAFEN, Germany—ZF Friedrichshafen has acquired a majority stake in European mobility provider 2getthere. FRIEDRICHSHAFEN, Germany—ZF Friedrichshafen has acquired a majority stake in European mobility provider 2getthere. $FRIEDRICHSHAFEN, Germany—ZF Friedrichshafen has acquired a majority stake in European mobility provider 2getthere.
Wacky World of Rubber: Using the rubber industry to fill out my March Madness bracket
View Description View Full Details
It's the most wonderful time of the year.Christmas? No. March Madness, the time where office productivity screeches to a halt as hardcore hoops fans fill out dozens of brackets only to lose to the ...
View Full Details »
News Editor Chris Sweeney is a huge sports fan and this year he's developed the perfect way to win his bracket pool: Pick teams based on their connection to the rubber industry. News Editor Chris Sweeney is a huge sports fan and this year he's developed the perfect way to win his bracket pool: Pick teams based on their connection to the rubber industry. $News Editor Chris Sweeney is a huge sports fan and this year he's developed the perfect way to win his bracket pool: Pick teams based on their connection to the rubber industry.
Elkem Silicones shows off LSR Select at MD&M West
View Description View Full Details
ANAHEIM, Calif.—Elkem Silicones USA Corp. has been working on its new process for liquid silicone rubber for a few years, and now it's ready to show the industry. The company officially...
View Full Details »
ANAHEIM, Calif.—Elkem Silicones USA has been working on its new process for liquid silicone rubber for a few years, and now it's ready to show the industry. ANAHEIM, Calif.—Elkem Silicones USA has been working on its new process for liquid silicone rubber for a few years, and now it's ready to show the industry. $ANAHEIM, Calif.—Elkem Silicones USA has been working on its new process for liquid silicone rubber for a few years, and now it's ready to show the industry.
Lord to add production in Germany
View Description View Full Details
HUECKELHOVEN, Germany—Lord Corp. plans to expand operations at its facility in Hueckelhoven in response to what it sees as a fast-growing electric vehicle market. The firm will invest about ...
View Full Details »
HUECKELHOVEN, Germany—Lord plans to expand operations at its facility in Hueckelhoven in response to what it sees as a fast-growing electric vehicle market. HUECKELHOVEN, Germany—Lord plans to expand operations at its facility in Hueckelhoven in response to what it sees as a fast-growing electric vehicle market. $HUECKELHOVEN, Germany—Lord plans to expand operations at its facility in Hueckelhoven in response to what it sees as a fast-growing electric vehicle market.
Natural rubber, latex drive Momentum's growth
View Description View Full Details
UNIONTOWN, Ohio—Momentum Technologies Laboratories Inc. expanded both its facility and capabilities to handle natural rubber and natural latex requests. The additions, which included new...
View Full Details »
UNIONTOWN, Ohio—Momentum Technologies Laboratories expanded both its facility and capabilities to handle natural rubber and natural latex requests. UNIONTOWN, Ohio—Momentum Technologies Laboratories expanded both its facility and capabilities to handle natural rubber and natural latex requests. $UNIONTOWN, Ohio—Momentum Technologies Laboratories expanded both its facility and capabilities to handle natural rubber and natural latex requests.
Kraton considers divestment of Cariflex business
View Description View Full Details
HOUSTON—Kraton Corp.'s Cariflex polyisoprene products unit is a strong and growing business, the company said in its 2018 financial statement. And that is part of the reason why Kraton is...
View Full Details »
HOUSTON—Kraton's Cariflex polyisoprene products unit is a strong and growing business. That is part of the reason why Kraton is thinking about selling it. HOUSTON—Kraton's Cariflex polyisoprene products unit is a strong and growing business. That is part of the reason why Kraton is thinking about selling it. $HOUSTON—Kraton's Cariflex polyisoprene products unit is a strong and growing business. That is part of the reason why Kraton is thinking about selling it.
Digital Edition
Digital Edition
Published on September 9, 2014

ITEC 2014 Paper 43: The Development and Application of a Methodology to Quantify Exposure to Nanoscale Amorphous Silica and Carbon Black During Tire Manufacturing

Have a question? Need some help?
Click here to view the FAQ

Tags

Date Published September 9, 2014
Category

To date, no studies have been conducted to quantify exposure to nanoscale particles from the use of amorphous silica and carbon black in tire manufacturing.  Because both carbon black and amorphous silica are nanostructured materials, with primary particles in the nanoscale and aggregates and agglomerates of much larger size (up to 100 microns), exposure to nanoscale particles of these materials during tire manufacturing is expected to be negligible.  However, because of the strong sheer forces imparted by the mixer during rubber compounding, there is a potential to break apart the agglomerates.  In the absence of data to understand this hypothesis, we developed a methodology to determine if and to what degree workers were exposed to nanoscale particles of amorphous silica and carbon black during the tire manufacturing process.  In this study, we collected air samples using the Dekati Electrical Low Pressure Impactor (ELPI) in a tire manufacturing facility and developed a methodology to analyze the size-fractionated samples for carbon black and amorphous silica, using scanning transmission electron microscopy, coupled with electron dispersive spectroscopy.  This methodology allowed us to predict what percentage of particles were carbon black, amorphous silica, or "other" in an effort to semi-quantitatively understand the potential for worker exposure to these materials in the nanoscale.  Coupling this information with size-specific particle counts from the particle counting function of the ELPI, we were able to estimate size-specific air concentrations for carbon black and amorphous silica.  Based on the results of this analysis, we determinded that workers had potential exposure to nanoscale particles of carbon black and amorphous silica, previously determined to be improbable due to aggregation and agglomeration that naturally occurs with these materials.  However, the magnitude of nanoscale (d50 between 17 and 94 nm) exposure was low and unliely to represent a health risk, with nanoscale carbon black air concentrations ranging from approximately 8,900 to 77,600 particles/cm³ and nanoscale amorphous silica air concentrations ranging from approximately 400 to 22,200 particles/cm³.  With pending development of occupational exposure estimates for nanoscale materials, this methodology will allow occupational health and safety practitioners to estimate worker exposures to specific materials, even in scenarios where many particle types may be contributing to total particulate exposure.   Presented by Marisa Kreider, Managing Health Scientist, Cardno ChemRisk.

ERROR: Object template cce_CCI_SITE is missing!