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Roving for long-span pultrusion applications
TECHNOLOGY
Guang Wei Composites – a prepreg partner in China CHINESE COMPANY Guang Wei Composites is supplying GL approved prepregs to wind turbine blade producers and is developing products for the marine, public transportation and other markets. Guang Wei Composites started out as a fishing rod manufacturer, using imported carbon fibre prepreg. Around 20 years ago it started manufacturing its own prepreg materials. Today, Guang Wei Composites employs 1000 people and its prepreg production is a big business. It employs around 1000 people and operates 10 prepreg lines, several Liba multiaxial machines (including the only Liba MAX 5 in China) and around 30 weaving looms. The company produces around 12 million m2 of prepreg per year at its facility in Weihai, Shangdong.
Guang Wei has also invested RMB30 million (€3.3 million) in a research and development facility at its Weihai headquarters. This will officially open in June. The 1000 m2 facility will house 40 technicians who will focus on composite material developments such as surface coatings, fire retardant products for aerospace applications, adhesives, lightweight carbon fibre products for the marine and sports sectors, and heavyweight materials for wind and infrastructure. Around 60% of the prepreg Guang Wei produces is used in house – the company makes 8 million carbon fibre fishing rods a year – but over the past 3-4 years the company has diversified into other markets. Today, Guang Wei is the only 100% Chinese company
making prepregs for the wind energy market and it supplies GL (Germanischer Lloyd) approved prepregs to Spanish wind turbine producer Gamesa’s Chinese facilities. Guang Wei was also recently awarded a Chinese patent for its ‘semipreg’ materials for wind energy applications. These comprise layers of dry reinforcement fibres and a catalysed resin matrix film. The company expects its sales to the wind energy market to grow as Chinese wind energy players switch to using prepreg materials. In addition to wind energy, Guang Wei is developing products for other markets with growth potential. It is currently testing prepregs designed for marine applications, and in the longer term it hopes to develop fire retardant prepreg suitable for aircraft and train interiors. Guang Wei has started working towards the aerospace qualification AS9100. In March, Guang Wei Composites attended the JEC Composites Show in Paris for the second time where it showcased its products, including its prepreg materials and dry unidirectional carbon reinforcements. The show offers Guang Wei an opportunity to promote its brand internationally. The company wants to become known as a good partner for companies coming to set up production in China.
Glass roving being processed into unidirectional prepreg for the wind energy market at Guang Wei Composites’ facility.
REINFORCEDplastics
MAY/JUNE 2011
Guang Wei Composites; www.guangweicomposites.com
Roving for longspan pultrusion applications OWENS CORNING is introducing XStrand® H roving, a high-performance glass reinforcement for long-span composite parts manufactured using the pultrusion process. The XStrand H roving is designed to help fabricators to create longer span, lighter weight components with lower deformation and higher strength. Potential applications include ladder rails, lighting poles and telescopic rods. Although specifically developed for use with polyester, vinyl ester and epoxy resin systems, the reinforcement can also be used in acrylic and polyurethane systems to produce long span structural beams. The XStrand H roving is made with a proprietary boronfree glass formulation that meets R-Glass standards ISO 2078, ASTM C162 and DIN B1259-1. Owens Corning claims it performs better than conventional E-glass, providing: up to 15% more stiffness; up to 20% more strength; up to 10 times more fatigue resistance at a given load; and resistance to strong acids equal to E-CR glass. • Owens Corning has also introduced a multi-end roving designed for use in architectural applications such as skylights, cladding, and greenhouses. The HiLight™ roving is made with Advantex® E-CR glass and features a proprietary sizing. It is designed for unsaturated polyester resin panel applications. Owens Corning; www.owenscorning.com
www.reinforcedplastics.com
Guang Wei Composites – a prepreg partner in China CHINESE COMPANY Guang Wei Composites is supplying GL approved prepregs to wind turbine blade producers and is developing products for the marine, public transportation and other markets. Guang Wei Composites started out as a fishing rod manufacturer, using imported carbon fibre prepreg. Around 20 years ago it started manufacturing its own prepreg materials. Today, Guang Wei Composites employs 1000 people and its prepreg production is a big business. It employs around 1000 people and operates 10 prepreg lines, several Liba multiaxial machines (including the only Liba MAX 5 in China) and around 30 weaving looms. The company produces around 12 million m2 of prepreg per year at its facility in Weihai, Shangdong.
Guang Wei has also invested RMB30 million (€3.3 million) in a research and development facility at its Weihai headquarters. This will officially open in June. The 1000 m2 facility will house 40 technicians who will focus on composite material developments such as surface coatings, fire retardant products for aerospace applications, adhesives, lightweight carbon fibre products for the marine and sports sectors, and heavyweight materials for wind and infrastructure. Around 60% of the prepreg Guang Wei produces is used in house – the company makes 8 million carbon fibre fishing rods a year – but over the past 3-4 years the company has diversified into other markets. Today, Guang Wei is the only 100% Chinese company
making prepregs for the wind energy market and it supplies GL (Germanischer Lloyd) approved prepregs to Spanish wind turbine producer Gamesa’s Chinese facilities. Guang Wei was also recently awarded a Chinese patent for its ‘semipreg’ materials for wind energy applications. These comprise layers of dry reinforcement fibres and a catalysed resin matrix film. The company expects its sales to the wind energy market to grow as Chinese wind energy players switch to using prepreg materials. In addition to wind energy, Guang Wei is developing products for other markets with growth potential. It is currently testing prepregs designed for marine applications, and in the longer term it hopes to develop fire retardant prepreg suitable for aircraft and train interiors. Guang Wei has started working towards the aerospace qualification AS9100. In March, Guang Wei Composites attended the JEC Composites Show in Paris for the second time where it showcased its products, including its prepreg materials and dry unidirectional carbon reinforcements. The show offers Guang Wei an opportunity to promote its brand internationally. The company wants to become known as a good partner for companies coming to set up production in China.
Glass roving being processed into unidirectional prepreg for the wind energy market at Guang Wei Composites’ facility.
REINFORCEDplastics
MAY/JUNE 2011
Guang Wei Composites; www.guangweicomposites.com
Roving for longspan pultrusion applications OWENS CORNING is introducing XStrand® H roving, a high-performance glass reinforcement for long-span composite parts manufactured using the pultrusion process. The XStrand H roving is designed to help fabricators to create longer span, lighter weight components with lower deformation and higher strength. Potential applications include ladder rails, lighting poles and telescopic rods. Although specifically developed for use with polyester, vinyl ester and epoxy resin systems, the reinforcement can also be used in acrylic and polyurethane systems to produce long span structural beams. The XStrand H roving is made with a proprietary boronfree glass formulation that meets R-Glass standards ISO 2078, ASTM C162 and DIN B1259-1. Owens Corning claims it performs better than conventional E-glass, providing: up to 15% more stiffness; up to 20% more strength; up to 10 times more fatigue resistance at a given load; and resistance to strong acids equal to E-CR glass. • Owens Corning has also introduced a multi-end roving designed for use in architectural applications such as skylights, cladding, and greenhouses. The HiLight™ roving is made with Advantex® E-CR glass and features a proprietary sizing. It is designed for unsaturated polyester resin panel applications. Owens Corning; www.owenscorning.com
www.reinforcedplastics.com