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Contact adhesive allows faster processing
Processing news
Thermoplastic core meets fire standards
Divinycell P is a recyclable thermoplastic core material.
DIAB HAS added a recyclable thermoplastic core material to its product range. Divinycell P is said to be particularly suitable for producing composite sandwich structures for public transportation, wind energy and construction applications. The product is reported to offer excellent fire, smoke and toxicity (FST) performance, good acoustic and thermal insulation properties, low water absorption, and good chemical resistance. It can be readily thermoformed and is currently available in three densities: 60 kg/m3, 100 kg/m3 and 150 kg/m3. DIAB is targeting Divinycell P at applications where good FST properties are required; the material has M1/F1 rating according to French standard
NF F 16-101 and compliance with the DIN 5510 S4 ST2 SR2 standard. Interior and exterior panelling of trains, trams, buses and coaches are examples of potential applications in the transportation market. Construction applications include domes, architectural cladding, portable buildings and heating and ventilation insulation. In the wind energy sector the material could be used in nacelles and spinners. Divinycell P is said to be compatible with virtually all commonly used resin systems, including those with high styrene contents. It can be processed using hand laminating, vacuum bagging and infusion techniques. The high processing temperature (150°C) allows it to be used with a wide variety of industrial prepregs. The material can also be supplied to meet specific processing requirements, in grid-scored, double cut and infusion grooved/perforated forms. It can also be produced as ready-to-use core kits.
Contact adhesive allows faster processing
Applying the adhesive.
POWER ADHESIVES, based in Basildon, UK, says it has developed a solvent-free alternative to the aerosol adhesives commonly used to position and secure reinforcement materials during the vacuum infusion process. The VAC-TAC adhesive system is designed to hold in place materials such as reinforcement fabrics, core materials, breathers, peel plies and release films. Boat builder African Cats is one company which has switched from using a traditional aerosol contact adhesive to the VAC-
Diab; www.diabgroup.com
Growth for glass fibre PC in Asia BAYER MaterialScience has started up its 5000 tonne/year glass fibre reinforced polycarbonate (PC) line in Shanghai, China. This is the company’s first facility of its kind in the Asia Pacific region. “We see a growing demand for such polycarbonate compounds in China and in Asia Pacific, from industry sectors such as the electrical and
electronic, and automotive sectors,” says Dr Rainer Rettig, Head of Advanced Resins (APAC), Business Unit Polycarbonates, Bayer Material-Science. Glass reinforced PC is currently used in car parts, mobile phones, electrical sockets, and many other applications. Bayer MaterialScience; www.bayermaterialscience.com
Boat builder African Cats has switched to the Vac-Tac adhesive system.
TAC system. The company uses the vacuum infusion process to manufacture its one-piece hulls and lower decks “We found we could build the composite structures much faster, saving time and reducing production cost," says African Cats' Managing Director Gideon Goudsmit. "We also eliminated health and safety issues because the old system depended on us using a solvent-based contact adhesive,” he adds. The VAC-TAC system incorporates a hot melt glue gun, 6 m of hose, adhesive and toolbox/carry case. The adhesive is supplied in a hot melt cartridge and the glue gun is connected to an air and electrical supply. The adhesive is melted inside the gun chamber and sprayed directly onto one of the substrates. The materials can be bonded instantly although the adhesive remains sticky for up to five minutes, allowing for positioning of the substrates. Power Adhesives; www.poweradhesives.com
December 2007
REINFORCEDplastics
15
Thermoplastic core meets fire standards
Divinycell P is a recyclable thermoplastic core material.
DIAB HAS added a recyclable thermoplastic core material to its product range. Divinycell P is said to be particularly suitable for producing composite sandwich structures for public transportation, wind energy and construction applications. The product is reported to offer excellent fire, smoke and toxicity (FST) performance, good acoustic and thermal insulation properties, low water absorption, and good chemical resistance. It can be readily thermoformed and is currently available in three densities: 60 kg/m3, 100 kg/m3 and 150 kg/m3. DIAB is targeting Divinycell P at applications where good FST properties are required; the material has M1/F1 rating according to French standard
NF F 16-101 and compliance with the DIN 5510 S4 ST2 SR2 standard. Interior and exterior panelling of trains, trams, buses and coaches are examples of potential applications in the transportation market. Construction applications include domes, architectural cladding, portable buildings and heating and ventilation insulation. In the wind energy sector the material could be used in nacelles and spinners. Divinycell P is said to be compatible with virtually all commonly used resin systems, including those with high styrene contents. It can be processed using hand laminating, vacuum bagging and infusion techniques. The high processing temperature (150°C) allows it to be used with a wide variety of industrial prepregs. The material can also be supplied to meet specific processing requirements, in grid-scored, double cut and infusion grooved/perforated forms. It can also be produced as ready-to-use core kits.
Contact adhesive allows faster processing
Applying the adhesive.
POWER ADHESIVES, based in Basildon, UK, says it has developed a solvent-free alternative to the aerosol adhesives commonly used to position and secure reinforcement materials during the vacuum infusion process. The VAC-TAC adhesive system is designed to hold in place materials such as reinforcement fabrics, core materials, breathers, peel plies and release films. Boat builder African Cats is one company which has switched from using a traditional aerosol contact adhesive to the VAC-
Diab; www.diabgroup.com
Growth for glass fibre PC in Asia BAYER MaterialScience has started up its 5000 tonne/year glass fibre reinforced polycarbonate (PC) line in Shanghai, China. This is the company’s first facility of its kind in the Asia Pacific region. “We see a growing demand for such polycarbonate compounds in China and in Asia Pacific, from industry sectors such as the electrical and
electronic, and automotive sectors,” says Dr Rainer Rettig, Head of Advanced Resins (APAC), Business Unit Polycarbonates, Bayer Material-Science. Glass reinforced PC is currently used in car parts, mobile phones, electrical sockets, and many other applications. Bayer MaterialScience; www.bayermaterialscience.com
Boat builder African Cats has switched to the Vac-Tac adhesive system.
TAC system. The company uses the vacuum infusion process to manufacture its one-piece hulls and lower decks “We found we could build the composite structures much faster, saving time and reducing production cost," says African Cats' Managing Director Gideon Goudsmit. "We also eliminated health and safety issues because the old system depended on us using a solvent-based contact adhesive,” he adds. The VAC-TAC system incorporates a hot melt glue gun, 6 m of hose, adhesive and toolbox/carry case. The adhesive is supplied in a hot melt cartridge and the glue gun is connected to an air and electrical supply. The adhesive is melted inside the gun chamber and sprayed directly onto one of the substrates. The materials can be bonded instantly although the adhesive remains sticky for up to five minutes, allowing for positioning of the substrates. Power Adhesives; www.poweradhesives.com
December 2007
REINFORCEDplastics
15