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products | Polymers and additives REINFORCEMENTS AGY develops high modulus S-glass


US-based glass reinforce- ment maker AGY has introduced a new high-mod- ulus glass fibre and extended its range of sizings for thermoplastic composite applications. Developed using AGY’s Modular Direct Melt (MDM) manufacturing method and a proprietary S-glass formula- tion, the new S-3 UHM glass fibre provides a tensile modulus of 99 GPa, which the company says is a 40% improvement over traditional E-glass products. According to AGY presi-


dent Drew Walker, the new grade will allow material formulators to use glass in


CONDUCTIVE COMPOUNDS RTP meets ATEX pump challenge


US compounder RTP Company has developed a special electrically conductive version of its 100 Series glass-rein- forced PP for an all-polymer diaphragm pump that meets the most stringent require- ments for use in potentially explosive environments. The pump is produced by


All-Flo, a well-established supplier of polymer-based pumps for applications such as mining where the light weight and improved corrosion and wear resistance is a major benefit over metallic alternatives. One of its most popular models for mining applications is the All-Flo It 1 inch (25 mm)


60 COMPOUNDING WORLD | December 2012


AOD air-operated diaphragm pump, which is manufactured in RTP’s Series 100 PP. While the pump meets the


requirements of the interna- tional ATEX Directive for use in potentially explosive require- ments, All-Flo sales and marketing manager Paul McGarry says certain national


markets and end-users have their own more demanding specifications. One of these customers asked for a special design using conductive polymers. Working in partnership with All-Flo and its injection moulding partner – Ohio- based Royal Plastics – RTP developed an RTP 100 Series compound using a carbon powder additive. “Not only did RTP


Company provide a conduc- tive material that had the properties and met the requirements, it had the same processability and worked with our existing moulds,” says McGarry. ❙ www.rtpcompany.com


applications that would have previously required more costly alternatives. “It brings a new level of tensile modulus to the arena of glass fibre without losing any of the unique properties that glass brings as a component of composites such as electrical and thermal insulation, and high impact absorption and low coloration of the resin system,” he says. The introduction of the new


glass follows an updating of the AGY sizing options, with a number of new sizing systems being made available to improve compatibility with a range of engineering thermo- plastics, including PA 6 and 6,6, PA 11, PA 12, PBT, PC, PEI,


AGY is producing glass fibre with a tensile modulus of 99 GPa


impact performance compared with traditional chopped products. This could result in higher performance compounds or allow glass content to be reduced to make weight savings without sacrificing performance, says the company. “We expect these sizings,


PEKK and PEEK. The new sizings are said to


have been evaluated on a range of fibres from low diameter E-glass to S-2 types and are claimed to provide improved mechanical and


combined with our S-2 Glass technologies, to open up new applications in the automo- tive, aerospace and industrial markets,” says Walker. The sizings are available


on directly sized rovings or as chopped fibre in lengths from 3.2 mm (0.125 inch) to 6.4 mm (0.25 inch). ❙ www.agy.com


MASTERBATCH


PCC goes direct with PLA blue pigment


Plastics Color Corporation (PCC) is now marketing its SoluPLAs TN 920259 blue tint masterbatch, originally developed for Ingeo PLA producer NatureWorks, directly as a new addition to its SoluPLAs family of PLA enhancers. Aside from the TN 920259


colour concentrate, the SoluPLAs product line includes additives for modifying the clarity, UV protection and acoustics of bio-based PLA resins. ❙ www.plasticscolor.com


www.compoundingworld.com


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