Struktol - A World of Capabilities

The February Digital Edition
 
 
Home The Magazine Digital Edition Red Book Blue Book Book Store RW China Archives IEC - Expo
 
 
Celebrating 129 years of service to the Worldwide Rubber Industry
 
 
News/Markets Hotlinks Media File Chemical Suppliers Machinery Suppliers Testing Services Custom Services Community
 
  AkzoNobel
Expos - Meetings - Golf Outings
Add your event
- courtesy of AkzoNobel


Translate Page To German
Tranlate Page To Spanish
Translate Page To French
Translate Page To Italian
Translate Page To Japanese
Translate Page To Korean
Translate Page To Portuguese
Translate Page To Chinese
Click to translate

Akrochem

Click here to read the
February issue.



Product Spotlight

Rubber post-curing oven
Click here for more information

Rubber World's Product News Online

Equipment | Materials | Instruments | Hardware/Software | Services

 
 
Tire industry solutions
Solutions for the manufacture of tires provided by the company include a range of environmentally friendly Rhenodiv release agents, Rhenomark tire marking paints, Rhenoshape tire vulcanization bladders, Rhenogran aramid fiber masterbatches and additives. In addition to traditional silicone-based products such as Rhenodiv BP-286 and Rhenodiv BP-2864, which are removed after vulcanization from the tires in mechanical washing systems or by means of laser technology, new 100% silicone-free products such as Rhenodiv BP-166 and Rhenodiv BP-9500 are now available. The company is said to provide ideal solutions for nitrosamine-free and highly reinforced tire compounds. Dithiophosphates, including Rhenogran TP-50 and Rhenogran SDT-50, are nitrogen-free accelerators that can replace typical sulfenamide, thiuram and carbamate accelerators. Under extreme mechanical, dynamic and thermal loads, the aramid fiber masterbatches of the Rheogran P91-40 series are said to provide outstanding reinforcing performance for tire compounds. The addition of Vulkanol TOF to a silica-filled compound for tire treads is said to significantly improve wet grip performance.

Lanxess
www.lanxess.com

Post date: 2/23/2018

 
Aromatic resin tackifiers
Aromatic resin tackifiers are said to offer improved performance and a better environmental profile compared with current market options. Tackifiers are chemicals used to increase surface stickiness in adhesive formulations. In independent, ISO 17025 certified third-party testing, the Resonance HF90-300 series of tackifier resins performed better than the market benchmark in tack, elongation and tear and tensile bond strength, according to the company. These enhancements should lead to improved stability and performance in tire, rubber and adhesive applications, according to the firm. At the same time, these resins are formulated without butyl, octyl or nonylphenol monomers, and can be used to reduce or eliminate alkylphenol monomer levels from adhesive formulations. This is said to allow the development of a variety of formulations.

Hexion
www.hexion.com

Post date: 2/23/2018

 
Precipitated silica solutions for rubber use
Precipitated silica solutions for industrial rubber applications are provided by the company. Precipitated silica is colorless, odorless and chemically inert, yet the interaction between silica particles and rubber is said to be important for the performance of composites that few rubber compounders regard it as a commodity product. With the introduction of chemically-modified Agilon performance silica and other advanced products, the company continues to develop products that enable rubber manufacturers to create goods that last longer and perform better. In addition to optimized processing characteristics, such as faster cure rates, easier mixing, improved flow or more flexible extrusion and color compounding capabilities, the company's silica technologies also are said to impart specific properties to finished high-performance products. Compared to rubber compounds using carbon black fillers with similar surface areas, these characteristics are said to include increased stiffness and reinforcing strength, enhanced resistance to heat build-up, better tear strength with equal tensile strength, improved color retention and/or translucence, superior chip and chunk resistance, and extended product life in high-temperature environments, according to the company. Hi-Sil reinforcing fillers are said to remain among the best known and most trusted brands in the industry, encompassing a broad range of materials engineered to help end-users achieve specific processing and performance requirements. Each Hi-Sil silica formulation is controlled by the company for surface area, particle size and other physical properties to regulate finished characteristics such as reinforcing strength, dispersibility, viscosity, cure rate, compression set and abrasion, tear and temperature resistance. The company's semi-reinforcing fillers are said to be designed with lower surface areas to limit stiffness, lower compression set, control heat build-up and improve dynamic modulus and resilience.

PPG Silica Products
www.ppgsilica.com

Post date: 2/23/2018

 
Reinforcement materials
Research, development, manufacturing and sale of carbon black for tires and automotive, construction and other industrial rubber products are provided by the company. The firm's portfolio of products includes reinforcing, semi-reinforcing, conductive, ultra-clean and low-PAH products from the Vulcan, Sterling, Regal, Spheron and Propel families. The company's additives for industrial rubber products are said to allow manufacturers to tailor mechanical, electrical and thermal properties to improve product performance while maximizing production efficiency in a wide range of applications, such as hoses and belts, automotive weatherstripping and molded rubber products.

Cabot
www.cabotcorp.com

Post date: 2/23/2018

 
White reinforcing fillers
Rubbersil white reinforcing fillers include precipitated silicas and synthetic sodium aluminum silicates. Rubbersil products are said to be white reinforcing fillers that provide excellent performance and processing properties to mechanical and technical rubber goods, according to the company. Rubbersil products are available in a wide range of surface areas to offer required performance, from easiest processing to maximum reinforcement. Applications for Rubbersil include conveyor belts, hoses, translucent and colored shoe soles and rubber articles, low hardness joints, piping, rollers, rubber support, flooring, micro cellular plates, cables, boat dock bumpers, tank lining and OTR tire tread. Rubbersil RS-250 is said to provide outstanding reinforcement power compared to all precipitated silica grades. Rubbersil RS-200 is said to impart excellent reinforcing properties like hardness, tensile strength, tear and abrasion resistance.

Glassven
www.glassven.com

Post date: 2/23/2018

 
Pelletized carbon blacks
SR409 is a next generation high structure pelletized carbon black. It is said to offer an effective surface area that places it between the traditional tread and carcass carbon black groups. Its broad aggregate size distribution, combined with high structure, provides elastomeric compounds with good processing, reduced hysteresis and high physical properties, according to the company. Typical applications for SR409 are said to include tire components where low hysteresis, high physical properties and good extrusion/calendering quality are required, and dynamic mechanical rubber components requiring low heat build-up and flex to fatigue resistance. Performance features of SR409 are said to include low hysteresis, and good mixing, dispersion and processing characteristics.

Sid Richardson Carbon & Energy
www.sidrich.com

Post date: 2/23/2018

 
Specialty carbon products
Specialty carbons for rubber compounds provided by the company include Ensaco Timcal carbon black and Timrex Timcal graphite. Properties of Ensaco Timcal 250G conductive carbon black are said to include high structure/low surface area, soft flakes, low oxygen content, high purity and high graphiticity. It is said to provide electrical conductivity, excellent dispersion, low viscosity increase, low cure inhibition, easy mixing and processing, some thermal conductivity, and it meets the most stringent purity requirements, according to the company. Properties of Timrex Timcal graphite are said to include high crystallinity, high carbon content, lamellar structure, and various shapes and sizes. It is said to provide self-lubrication, thermal and electrical conductivity, and a gas barrier.

Imerys Graphite & Carbon
www.imerys-graphite-and-carbon.com

Post date: 2/23/2018

 
Social value of carbon black examined
Carbon black is said to be a safe, highly engineered microscopic carbon that plays an important role in many areas. Carbon black is a virtually pure, elemental carbon in the form of colloidal particles, which are microscopic and arranged in a grape-like form. Its physical appearance is that of a black, finely divided pellet or powder; individual particles of carbon black are invisible to the human eye. The size of the particles and the way they are aggregated provide specific properties to the carbon black and define its use. For example, a large particle-sized soft carbon black grade will contribute to the elasticity of the tire sidewalls, while a small particle-sized hard carbon black grade will be essential to ensure the durability of the tire's tread. Whenever one uses something that is black, it probably contains carbon black. From cars to computers, plumbing to agriculture, and banknotes to shoes, carbon black is making lives better, according to the company. It makes travel safer, communication possible, and enables access to clean water for drinking and irrigation. This company is said to lead the way in the industry in terms of pollution control technology, and aims to be as efficient as possible in the carbon mass balance efforts and sustainable practices, while providing a secure, consistent supply of the highest quality to customers across the globe. The company's campaign, called Social Value of Carbon Black, is the beginning of an initiative started by the firm for the industry at large. The company's footprint extends across 12 countries with 16 manufacturing facilities. The firm provides a complete portfolio of products across ASTM grades and specialty blacks to meet specific end requirements.

Birla Carbon
www.birlacarbon.com

Post date: 2/23/2018

 
Recycled carbon black
The value of the market for carbon blacks is said to be huge, and as a material approved for use in rubber products by companies such as Volvo cars, Enviro recycled carbon black is said to find customers in many different industries. Vibration damping, shock and collision protection, gaskets, seals and rubber sheet are examples of products where Enviro recycled material can replace new product. Recycled carbon black is said to have the potential to replace newly produced carbon black in the majority of these products, and the company is seeking acceptance in more markets and sees potential in products made from natural rubber and synthetic rubber compounds such as EPDM.

Scandinavian Enviro Systems
www.envirosystems.se

Post date: 2/23/2018

 
Customized treated silica
PV-Sil customized treated silica products for the rubber industry have been helping improve efficiency for decades, according to the company. PV-Sil treated silicas are said to eliminate or reduce VOC emissions, improve coupling efficiency, reduce mixing cycle time, possibly reduce a pass in multi-stage mixing, and provide for customer specific options. The company also provides kaolin clays, silica products, carbon black, custom treating and packaging, and value added services, including material blending, bulk carbon black transfer from super sacks to bulk trucks, de-densification of fillers, vibratory screening to classify materials, pre-weighs and testing.

Polymer Valley Chemicals
www.polymervalleychemicals.com

Post date: 2/23/2018

 
Cradle to Cradle Certified carbon black
Carbon black from the company has received an official Cradle to Cradle Certified Bronze Certificate, assessed by the Environmental Protection Encouragement Agency. This is said to be the first time that a carbon black has received this certification. The company's carbon black is upcycled because the output material is of higher quality than the input material (furnace black in car tires). Its extremely low content of polycyclic aromatic hydrocarbons (PAHs) means that it is of such good quality that the firm recommends its use in all kinds of applications, including those involving a lot of skin contact, such as bicycle handlebars, stroller handles, wheelchairs, and car and bicycle tires, where abrasion and inhalation of carcinogenic PAH-containing particles can be hazardous. The use of a high-quality product like the company's carbon black is said to have the potential to positively impact on the health and well-being of many people, and it is therefore said to be a beneficial Cradle-to-Cradle product. The Cradle-to-Cradle Certified products program is an independent, third party verified certification program that certifies products and materials that are developed to respect human and environmental health, designed for future use cycles, and that utilize clean energy and water throughout the supply chain. Certified products are required to show continuous improvement every two years. One of the interesting findings of the certification activities was said to be a reconfirmation that the company's carbon black has extremely low levels of harmful PAHs. A low level of PAHs is increasingly becoming important, given health considerations and increased REACH regulation, according to the company.

Black Bear Carbon
www.blackbearcarbon.com

Post date: 2/23/2018

 
Polybutene products
Indopol polybutenes are non-drying synthetic hydrocarbon polymers made by polymerization of C4 olefins (primarily isobutene), and are available in a wide range of viscosities. By controlling the polymerization conditions, polymer chains of varying length are manufactured providing polybutene grades with a unique set of physical properties, according to the company. Short chain-length polybutenes are characterized as low viscosity fluids with free-flowing oil-like properties; medium chain-length polybutenes are sticky with a honey-like consistency; while those with the longest chain length are very tacky, semi-solid materials.

Ineos Oligomers
www.ineosoligomers.com

Post date: 2/15/2018

 
Butadiene/acrylonitrile
Paracril NBR powder is supplied by the company. Nitrile rubber is a polar elastomer that can be blended with other elastomers and thermoplastics. The predominant thermoplastic blend with NBR is with PVC. These two polymers form a miscible blend which imparts ozone resistance to the NBR and flexibility to the PVC. The NBR acts as a high molecular weight plasticizer to replace the normal monomeric plasticizer used in PVC compounds. This benefits the oil resistance, fuel resistance, tear strength, abrasion and flex resistance, according to the company. Since the NBR is not extractable versus the fugitive monomeric plasticizer, it will remain after heat aging, oil and fuel immersion, yielding better aged properties and low temperature performance after aging. The lower level of monomeric plasticizer also is said to reduce cracking of adjacent thermoplastics due to migration of the monomeric plasticizer to the thermoplastic, which swells the plastic, causing crazing. NBR powder is used in friction products such as brake pads and clutch discs. ()

Dynasol Group
www.dynasol.com

Post date: 2/15/2018

 
Liquid rubber for EPDM
Several liquid rubber grades that are suitable for EPDM peroxide curing applications have been developed by the company. Specifically, substituting LBR-361 for TAC as a coagent will offer similar mechanical properties while reducing volatile organic compound (VOC) content, according to the company. Possible applications include plumbing components, since the company's liquid rubber/EPDM compounds can meet local drinking water regulations. Also, LBR-361 is said to improve compression set, which is beneficial for rubber compounds used to produce automotive parts, hoses, etc. LBR-361 is said to provide the optimum soft-elasticity ratio described by hardness versus compression set.

Kuraray
www.kuraray.com

Post date: 2/15/2018

 
TPU compounds
Estane thermoplastic polyurethane is said to provide high performance solutions to surface protection and graphics. Estane TPU is said to provide exceptional performance for surface protection applications in the harshest environments, including road salt, flying stones, acid rain, and extreme hot and cold. More recently, Estane TPU has been recommended for use in demanding graphics applications, such as transportation wraps, building signage and durable labels. The Estane TPU product line consists of polyester, polyether and specialty adhesive compounds. The Estane TPU portfolio is said to bridge the gap between flexible rubber and rigid plastics.

Lubrizol
www.lubrizol.com

Post date: 1/8/2018

 
Organic peroxide for EPDM
Luperox Air-XL is an organic peroxide for EPDM (ethylene propylene diene monomer) compounds. Luperox is said to be a hot air curable organic peroxide for improved productivity and mechanical performance. The peroxide formulation was introduced for curing EPDM compounds used in a wide range of applications. Air-XL technology is said to offer the flexibility to cure EPDM compounds in the presence of air with a tack-free surface. Users can exceed the compression set and heat-aging performance offered by traditional sulfur vulcanization, without nitrosamine by-products, according to the manufacturer. RPA rheometer cure data are said to show that Luperox Air-XL offers equivalent crosslink density to sulfur, and achieves a tack-free rubber surface in the presence of oxygen. Performance of Luperox Air-XL in percent compression set is similar to standard peroxide, and it outperforms sulfur cure, even in the presence of air, according to the company. It also is said to show improved heat aging performance in high temperature applications compared to sulfur cure. When testing for tensile strength and percent elongation at break, mechanical properties of Luperox Air-XL are said to be comparable to sulfur cure, and the organic peroxide is said to offer excellent performance compared to standard peroxide cure, even in the presence of air.

Arkema
www.arkema.com

Post date: 1/8/2018

 
Melt strength additive
A global provider of liquid polybutadiene offers a method to improve melt strength of polypropylene (PP). Dymalink 9200 is a polar zinc salt that can be added to conventional PP to provide very high melt strength behavior, even at very low loadings. Adding Dymalink 9200 to standard PP compounds is said to enable them to be used in applications where melt stretching and drawing are critical, such as foam molding, blow molding, thermoforming or pipe extrusion. Dymalink 9200 reacts with aliphatic polymers to create a C-C link. Within the polymer, the zinc salts assemble into ionic clusters that offer unique dynamic networks, according to the company.

Total Cray Valley
www.crayvalley.com

Post date: 1/8/2018

 
Perfluoroelastomers
Kalrez 9600 perfluoroelastomer compound was developed to meet the needs of the semiconductor fabricating industry. Said to be a well-balanced, high-purity perfluoroelastomer product, Kalrez 9600 is said to provide longer seal life by offering enhanced performance properties in an array of aggressive and emerging high-temperature plasma applications. Kalrez is said to have shown excellent ozone, ammonia, fluorine and oxygen radical resistance, as well as ultralow outgassing and outstanding thermal stability. Kalrez 9600 is based on a proprietary crosslinking system and is uniquely identifiable by its olive-green color. It is said to be especially suited in plasma deposition applications such as atomic layer deposition and chemical vapor deposition, as well as etch processes used to fabricate next-generation chips in the semiconductor industry.

DowDuPont Transportation and Advanced Polymers
www.dow-dupont.com

Post date: 1/8/2018

 
Mold cleaning compound
Glo-Mold is a patented rubber compound for in-place mold cleaning. It is said to eliminate or reduce typical problems and hidden costs of conventional mold cleaning techniques. Glo-Mold is said to minimize press downtime, minimize excessive labor in mold handling, reduce mold damage or abrasion, reduce delays due to scheduling of cleaning equipment, reduce the number of rejects due to defects or poor surface appearance, and reduce heat transfer loss. Normal processing techniques are used with Glo-Mold in injection, compression and transfer molding.

Glo-Mold
www.valleyrubber.com

Post date: 1/8/2018

 
Predispersed short fibers
Rhenogran wood pulp type and Rhenogran aramid type short fibers are used as additives in rubber compounds. Rubber products, such as tires, automotive components, industrial or technical rubber goods, are said to be under continual pressure for improved performance, while concurrently facing downward cost pressure, according to the company. Reinforcement is said to be an extremely important aspect of compounding, and plays a significant part in this cost versus performance analysis. The use of short fibers as an additive to rubber compounds has been shown to both improve physical properties and have a lowering effect on the cost of producing rubber products.

Lanxess
www.lanxess.com

Post date: 11/20/2017

 
Fluoroelastomer grades
Aflas 400E has been added to the company's line of extrudable fluoroelastomer grades. Aflas 400E is a tetrafluoroethylene propylene (FEPM) material that is said to offer performance and processing advantages over FKMs and other Aflas grades. The product incorporates a new cure-site monomer, making Aflas 400E ideal for wire and cable constructions, according to the company. It is said to cure rapidly and is colorable, while maintaining the characteristics and resistance of standard Aflas. Products made with Aflas 400E are said to last longer in harsh environments, and they do not deteriorate under prolonged exposure at 230C. Additional processing advantages of Aflas 400E over conventional FKMs and other Aflas grades are said to include easier extrusion, excellent electrical resistivity, superior thermal resistance, outstanding resistance to bases and acids, improved compression set, enhanced tear resistance, white base resin color, and a specific peroxide is not required.

AGC Chemicals Americas
www.agcchem.com

Post date: 11/20/2017

 
EPDM product solutions
Three Nordel EPDM (ethylene propylene diene terpolymer) products are said to enable automotive part manufacturers and brand owners to make higher performing weatherstrip parts and meet consumer demands and market trends for lightweighting, safety and aesthetics. The extra fast cure (XFC) grades of Nordel EPDM are said to allow OEMs to create high quality dynamic and static automotive weatherstrip products more efficiently so brand owners can meet increasing consumer and regulatory demands for lightweight, fuel-efficient cars with dampened vibrations, isolated road noise and appealing aesthetics, according to the company. Used in automotive sealing applications for car doors, glass and window, trunk and hood seals, Nordel EPDM XFC products are said to be extremely high quality, low gel polymers that provide the optimum balance of surface sealing and aesthetics, part strength, and improved elastic and compressive properties.

Dow Elastomers
www.dow.com

Post date: 11/20/2017

 

 
 
This page, and all contents, are Copyright (c) 2018 Rubber World Magazine.
This site was created by Rubber World Magazine's Electronic Publishing Division, Akron, Ohio.