Protomax converting waste into panels
A Swansea, Wales, engineering company has developed machinery that can turn waste plastic into panels for construction and industrial uses.
Protomax Plastics Ltd. says the panels can replace plywood in building and pallets as well as form a raw material to make kayaks and military products. The feedstock can be discarded plastic bags, old milk cartons and other waste, according to Protomax.
The firm expects to produce the machinery in January. It is getting financial assistance from the Welsh Assembly Government to develop and manufacture the machinery. Protomax now is conducting major trials at companies in the United Kingdom.
Tel. 44-207-251-5326, e-mail [email protected]
Symphony additive assists degradation
Symphony Environmental Technologies plc is planning to help set up an operation in Montreal to distribute its oxo-biodegradable plastics additive in the United States and Canada.
The firm, based in Borehamwood, England, says its d2w-brand additive promotes degradation in a controlled manner after the plastic is subjected to heat, light and stresses. Once degradation starts, it continues even in landfills and under water, the company claims. Degradation periods of 60 days to six years can by designed into a product, Symphony said. The additive is mixed with a range of plastics during the extrusion stage.
Tel. 44-208-207-5900, e-mail [email protected]
DuPont says PBT cuts cycle time and costs
DuPont Engineering Polymers has debuted fast-cycling polybutylene terephthalate for injection molding.
Crastin SF grades can cut cycle time by up to 30 percent and costs by up to 20 percent, the Wilmington, Del., company claims. They are particularly well-suited to make thin-wall parts such as connectors and large parts like structural housings.
Fast cycling is due to the resin's exceptionally high flow, DuPont explains. A 30 percent glass-filled grade has melt viscosity that is 43 percent lower than a standard grade at 482° F, according to the company. High flow can translate into major reductions in melt temperature, saving time during pressure hold and cooling. High flow also can lead to thinner walls and more intricate flow paths as well as greater mold cavitation.
Mechanical properties of the new materials are comparable to standard PBT grades. DuPont offers Crastin SF in 30 percent glass-filled, 15 percent filled and unfilled versions.
LyondellBasell HDPE resists biodiesel fuels
LyondellBasell Industries AF SCA has introduced a family of high density polyethylenes with improved resistance to biodiesel fuels.
New Lupolen materials are suited to blow molding and injection molding of automotive fuel tanks. Greater chemical resistance allows them to contain higher levels of biodiesel in fuels, the Rotterdam, Netherlands, firm claims.
After 1,500 hours of contact with 100 percent biodiesel fuel, the resins changed their intrinsic viscosity by 1.7 percent, a nearly thirtyfold improvement over standard HDPE grades, the company said. The products also retain physical and chemical properties at the same level as conventional Lupolen resins. Melt viscosity, for example, is unchanged so existing molds and machinery shouldn't require modifications. LyondellBasell said it developed new test methods for biodiesel to realistically simulate resin performance.
Tel. 49-69-305-85838, fax 49-69-305-1929131, [email protected] lyondellbasell.com.
Ticona increases, improves PBT lineup
Ticona Engineering Polymers has expanded its nonhalogenated, flame-retarded XFR polybutylene terephthalate lineup.
The Florence, Ky., firm is debuting its Celanex 6842 series with improved processability and equivalent properties as replacements for use in electrical and electronic components. Ticona claims they can be used without modifying molds or tooling.
Materials in the XFR product line don't migrate or corrode terminals during use. They exhibit lower density than halogenated systems. They also have good colorability and electrical properties.
Tel. 800-833-4882, fax 859-372-3125, e-mail [email protected] .com.
RTP PP concentrate suitable for auto uses
RTP Co. has developed a long-glass-fiber polypropylene concentrate especially suited to automotive applications.
The concentrate contains 60 percent by weight of long glass fibers and other additives so it can be blended with neat PP at the injection press.
The Winona, Minn., firm says RTP199X118012 was designed for simple use in large volume jobs.
RTP claims the concentrate allows processors to achieve performance targets while reducing material costs, improving profits and increasing their competitiveness. It can be used to increase stiffness, impact resistance and long-term durability. Typical end uses could be auto front-end modules and door plates and large profile extrusions.
Tel. 800-433-4787 or 507-454-6900, e-mail [email protected] .com.
Axel's mold release reduces pockmarks
Axel Plastics Research Laboratories Inc. has a new mold release designed for rotational molding of cross-linked polyethylene.
The new MoldWiz EM-606SFL grade is water based with extra slip demanded by XLPE, according to the Woodside, N.Y., company. It also maintains enough surface tension to allow the resin to easily coalesce. Those properties make parts easier to release and with fewer pockmarks and surface defects.
The new product is an 8 percent active, silicone-free emulsion of organic phosphate esters, fatty acids and fluoropolymer.
Tel. 800-332-2935 or 718-672-8300, e-mail [email protected]
PlastiComp's LFTs can take on metals
PlastiComp LLC has applied its long-fiber thermoplastic technology to high-temperature polymers.
The Winona, Minn., firm said its hot-melt impregnation of reinforcing carbon fibers gives materials with very high tensile modulus. Long fibers present at 40-50 percent by weight give a balance of mechanical properties at elevated temperatures.
PlastiComp has adapted its technology to polyphenylene sulfide, polyether sulfone, polyether imide and polyetherether ketone. Tensile modulus of a 40 percent carbon fiber reinforced PES, for example, is 5.2 million pounds per square inch, compared with 4.3 million psi for 50 percent carbon-fiber-reinforced nylon 6/6. Flexural modulus is 4 million psi compared with 3.1 million psi.
PlastiComp targets metal replacement for its new materials in military, industrial and aerospace uses.
Tel. 507-454-4334, fax 507-452-5642, e-mail [email protected] com.