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UHMWPE types in the DREYPLAS portfolio that are suitable for injection moulding, extrusion and 3D printing allow considerable cost savings compared with the machining of semi-finished products. © Dreyplas
Meerbusch/Germany, August 2021 – At Fakuma, plastics distributor DREYPLAS (www.dreyplas.com) will showcase innovative application possibilities for the ultra-high-molecular-weight polyethylene (UHMWPE) LUBMER™ from Mitsui Chemicals. Compared with conventional sintered semi-finished products, this offers possibilities for considerable cost savings in the production of moulded parts and profiles that also boast excellent surface slip properties. This advantage comes from the thermoplastic processability by injection moulding and extrusion. In this way, it is no problem with Lubmer to produce parts with narrow tolerances and very low depths of roughness. As a result, the amount of time required is significantly reduced, and the large quantities of costly, non-reusable production scrap from the machining of semi-finished products are no longer produced. In current sampling trials at customers, Lubmer has also proved that the product is suitable for 3D printing.
The difference between the various UHMWPE types lies in the length of the molecule chains. With conventional types, they are so long that they cannot be melted but have to be sintered into the semi-finished products. Compared with that, the molecular weight of the Lubmer types supplied in granule form is reduced by just enough for processing to be possible on conventional injection moulding machines and extruders. As a result, it provides greater design freedom than with the machining of semi-finished products and, furthermore, the production scrap – which is less anyway – can be melted again and returned to the process in an environmentally friendly manner.
Despite the reduced molecular weight, Lubmer offers, with smooth friction partners such as steel, equally good tribological properties as components made of a sintered semi-finished product. This and its recyclability in the polyolefin stream make it in many applications a sustainable alternative to engineering plastics such PPS, POM, PA or PBT. Lubmer can be used in applications at long-term temperatures down to –200°C, and its chemical resistance, heat resistance and (low-temperature) impact strength are the same as those of UHMWPE semi-finished products. It complies with all the REACH regulations and is approved to FDA and EU10/2011 for food-contact applications.
Alongside the basic types, namely Lubmer L3000 with the highest flowability, L4000, and L5000, which is also suitable for extrusion and has the highest abrasion resistance, DREYPLAS also markets the higher temperature-resistant Alloy LS4140, which, thanks to its polyamide modification, combines elevated temperature resistance with good flow properties. Lubmer can be used both with hot runner systems and with traditional tunnel gates. The light and opaque intrinsic colour facilitates the use of colour masterbatches. Other functional additives can also be incorporated via the conventional metering systems.
Lubmer offers very good sound insulation and better electrical insulation properties than most other polyolefins. It is suitable, for example, for low-noise cogwheels and also for applications that specify low-temperature resistance and high chemical resistance. The combination of low sliding friction and high abrasion resistance also make it an effective alternative for applications such as bearings that are subjected to high stresses, and generally also for technical components that are subjected to sliding friction during use. At the same time, extruded guide elements and profiles also offer the typical benefits of UHMWPE.
In addition to the sales and marketing of Lubmer, the development of innovative applications and products is a core competency of DREYPLAS. This involves accompanying customer projects as well as in-house developments. The latter also include the UHMWPE types Dreylub 5HK5 and 5HK10 with 5 and 10 % by wt. respectively of hollow glass spheres, combining high abrasion resistance and low specific weight with almost complete freedom from warpage.
DREYPLAS is a distributor founded in 2010 and based in Meerbusch, Germany. The portfolio covers high-performance additives and polymers as well as adhesive raw materials, mainly produced by large Asian companies. The focus is on technically high-quality alternatives to established products. Its customers are polymer manufacturers, compounders, coating producers and plastics processors in Europe. The US subsidiary DREYTEK Inc., New Jersey, founded in 2015, markets these products in Mexico, the US and Canada. With this subsidiary and a partner in Asia, DREYPLAS offers global technical support in development and processing. All products are marketed globally and stored and invoiced locally.
DREYCHEM GmbH, Moormerland, Germany, which also belongs to the DREYPLAS group, develops, produces and markets highly efficient cleaning granules for injection molding and extrusion, also for the high temperature range. EFP GmbH, Meerbusch, Germany, which is also part of the group, markets specialty films, e.g. of polycarbonate and PMMA, as well as flame-retardant film in Europe and the US. EFP is currently the only provider worldwide of extruded films of UHMWPE.
Norbert Hodrius, DREYPLAS GmbH, Meerbuscher Str. 64-78 Haus 6A, D-40670 Meerbusch
Tel. +49-2159-815 31-11, Fax. +49-2159-815 31-29, firstname.lastname@example.org
Editorial contact and voucher copies:
Dr. Jörg Wolters, Konsens PR GmbH & Co. KG, Im Kühlen Grund 10, D-64823 Groß-Umstadt
Tel: +49 (0) 60 78/93 63-0, E-Mail: email@example.com
DREYPLAS GmbH is now distributing Graphite powders from Nippon Graphite Industries.
Nippon Graphite Industries is specialising in the production and purification of graphite powders for more than 100 years.
The product range includes not only highly purified powders with minimal ash content, but also flake type graphite, synthetic graphite with superior hardness, laminated, expendable and amorphous types.
Also surface treated types with a variety of sizings like wax, titanite, stearic acid and other surface treatment agents are available upon request.
Because of its high electrical/ thermal conduciveness our graphite types are used to produce carbon brushes, brake pads, conductive materials for batteries, bearings, gaskets and many more.
Please find the full product line here: PDF – File
In the recent years Polycarbonate has undergone a very fast change from a former engineering to a mass polymer. Despite the loss of volume markets like optical memory discs and food applications the overall demand for Polycarbonate is continuously growing.
China – originally a pure import market for PC – has new, own capacities by the worldwide well known industry leaders. On top of such international investments there are at least 7 Chinese industry groups who already have own, local capacities or will launch new capacities in the near future.
China increasingly is becoming an important potential supplier for polycarbonate. This fits to our philosophy to offer technical and qualitywise high value materials at competitive prices to Europe.
Already since the late 2019 DREYPLAS and Chinese LUXI ( http://en.luxichemical.com/ ) entered into a sales agreement for Europe’s German speaking countries. Luxi started back in 2015 and has since the first expansion in 2018 already a capacity of 200,000MT PC resin.
Basically LUXI produces MFR from 3 to 20. All grades will be also available with UV protection.
To be costwise for the customers most competitive DREYPLAS is concentrating in the first phase on few grades like MFR 9 and 15, MFR 9 also with UV. As soon as the supply prooved to be routine business also other MFR shall be made available step by step.
Existing customers are served from local stock in Germany. New customers may have a lead time of up to 8weeks for the first delivery. After that stocks can be increased to ensure a lead time of few working days.
DREYPLAS is represented in China directly with a reliable group partner. By that we are able to locally control the cargo logistics as well as the quality and make sure that our standards are kept.
LGMMA/Korea – one of leading manufacturer for PMMA and SMMA – will increase during 2020 it’s production capacities to 260.000MT. By this increased capacity it will be possible to expand the presence also in Europe further.
In addition to standard application in injection and extrusion molding DREYPLAS is especially concentrating on specialities like
DREYPLAS suppliers containerloads directly from Korea to customers. Smaller quantities as well as buffer quantities are delivered from European stockpoints within few days after order.
Newly added to the DREYPLAS product portfolion is alumina as additive to improve the thermal conductivity. We understand the following materials as direct competition to our material:
Our products in platelet shape are produced by Japanese DIC. We see the following advantages to established materials:
Current sph Al is consumed by more than 10,000MT/a worldwide. Our commercial available platelet grade AP-10 has higher cost than sph Al, finds however even today application i.e. in mixture with sph Al to improve the meachanical properties at a moderate increase of compound price.
Compared to AlN and BN the price difference is smaller. It is expected that the better abrasion properties and the still higher heat conductivity are the reason to shift to platelet Al.
Current we have access to a few hundred ton production capacity, a substantial increase is targeted as soon as possible.