Product category:
Materials and components
News Release from: Polymer-Chemie | Subject: LGF compounds
Edited by the Engineeringtalk Editorial
Team on 21 January 2008
Re-inforced PVC boosts strength and
stiffness
The new material's increased strength and stiffness will usually permit a reduction in wall thickness while keeping product characteristics unchanged.
Injection moulded and extruded parts made from Polymer-Chemie's new compounds attain a strength and stiffness which is many times higher than that of their counterparts produced from conventional PVC stock The glass fibre re-inforced PVC compounds are being developed with both short (SGF) and long (LGF) reinforcing fibres
This article was originally published on Engineeringtalk on 18 Jan 2008 at 8.00am (UK)
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The LGF compounds contain glass fibres of uniform length, corresponding to the pellet length.
As a result, mouldings made from this material will not only provide high levels of tensile and bending strength but also show a high notched impact resistance.
SorVyl compounds are available with different glass fibre concentrations.
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The LGF re-inforced varieties can additionally be ordered in different pellet (and hence, fibre) lengths.
Moreover, Polymer-Chemie supplies both LGF and SGF compounds tailored to customer specifications.
PVC is a thermoplastic material used in large quantities for plastic products.
Construction industry demand accounts for well over two-third of the total consumption of PVC, followed by packaging, electrical engineering and electronics, the furniture industry, automotive manufacturing and, ultimately, medical equipment applications.
Wherever parts must withstand elevated mechanical loads, Polymer-Chemie's new glass fibre re-inforced PVC compounds are capable of providing improved product performance or can open up altogether new application fields.
Conversely, in existing applications, the new material's increased strength and stiffness will usually permit a reduction in wall thickness while keeping product characteristics unchanged.
Material and weight savings gained without impairing product performance constitute an important economic and technological advantage.
In window construction, for instance, the re-inforced PVC compound can partly - or even fully - replace previously used metallic joining and reinforcing hardware.
Apart from weight reduction advantages, improved thermal insulating properties will thus be obtained, which may in turn give rise to new design options.
To produce high-strength PVC mouldings which simultaneously feature a high visual surface quality, glass fibre re-inforced SorVyl compounds can be conveniently combined with a nonre-inforced PVC formulation that will yield the desired smooth surface finish.
The necessary processing methods, co-extrusion and multicomponent injection moulding, constitute mature technologies.
Under the SorVyl trade name, Polymer-Chemie's PVC Compounds Business Unit develops and markets unplasticised PVC granules and dry blends as well as plasticised PVC granules.
A total of 15 production lines at the Bad Sobernheim site currently deliver about 70,000 tonnes a year of compounding capacity.
In addition to standard formulations, the company develops compounds to customer specfications.
To this end, a comprehensively equipped R and D centre with attached materials testing laboratory is available at Bad Sobernheim.
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