CSUK News DiCycloPentaDiene (DCPD) - a very cost effective answerDCPD is the most advanced solution for the manufacture of large parts, from low to high volumes, with a very large
range of applications.The increasing demand for energy saving building elements has
raised the market's interest towards these foam-insulated doors DCPD RIM Resins are liquid resins based on highly purified
that are supplied in a wide variety of sizes, colours and finishing DiCycloPentaDiene (DCPD). Mixed under pressure, the
surfaces. chemical reaction of components A and B gives the thermoset
Another developing market – the manufacture of large, polymer. Reaction Injection Moulding (RIM) of the low-
Cannon Solutions UK just completed their third year as lightweight structural elements made in SRIM (Structural viscosity resins is the preferred method of production of DCPD
Cannon Group's manufacturing centre for special Reaction Injection Moulding) and in PDCPD (Poly Di parts.
products: they have seen a further growth in activity and Cyclo Penta Diene) for various transportation and technical DCPD RIM polymers have high rigidity, excellent impact
results, reflecting the need within the Group for a centre applications – demands special Mould Carriers characterised by resistance, as well as good surface appearance and corrosion
that can respond to special enquiries and to their deep draw, wide opening angles, sometimes an extended tilting resistance for a wide range of applications.
established market in UK and EIRE. angle and relatively light structure. Last year they have delivered
– amongst others – special mould carriers to the Research & The DCPD catalyst system makes it possible to control the
The weakness with the UK currency means that their products Development Center of GE in Germany and to Linecross in the starting point of the reaction. This opens up the processing
are now more competitive than before, and they can and will UK. One book-opening carrier even rotates 270 degrees when window to the moulder by increasing the time available to fill the
deliver quality products with an attractive price structure. closed, to ensure a fully wetted out part after the injection of the mould. This makes it possible to make very large plastic parts (up
We have reported on the K2007 edition of the Cannon News liquid blend in the closed mould. to 100 Kg and over) in a very short time. The use of plastics in the modern truck has meant progress in
what they can supply in terms of special plants and technologies Complete Filter Plants are regularly supplied to the world leader DiCycloPentaDiene, or DCPD, is a product obtained from the design, comfort and safety. For the future DCPD is the major
for PUR-insulated Domestic Doors, which they are continuing in filter manufacture in the Czech Republic and in the UK: steam-cracking process. In its highly purified form, it can be breakthrough: lightweight parts can be produced industrially
to supply the market with: last year they have installed interesting these are repeat orders from a market leader and can only polymerised by the so called "metathesis" chemical reaction without sacrificing mechanical properties.
plants in France and Ireland, with several pending enquiries enhance Cannon Solutions Uk's reputation in this speciality which gives rise to a cross-linked 3-dimensional polymer For Agricultural and Earth moving equipment applications,
waiting to be converted this year into orders. application field. structure. The DCPD A and B components are liquids and image a material that doesn't rust or corrode, even in contact Large, lightweight structural elements in SRIM (Structural RIM) and PDCPD
(www.cannonsolutionsuk.com) contain a catalyst and a co-catalyst respectively. These promote with fertilizers, which doesn't break or split when it is bumped, (PolyDiCycloPentaDiene) are moulded with dedicated mould carriers built by
Cannon Solutions UK. the chemical reaction only when the two components are mixed banged and abused, that keeps it's appearance longer than together in controlled conditions. We make use of this painted steel, even when it is left outside for years on end.
metathesis reaction in Reaction Injection Moulding (RIM) This material can be made into tractor fenders, parts for the SRIM still the solution for low
Because of the number and size of tools involved the processing for the industrial production of DCPD Polymers. tractor cab or engine hood and for earth moving equipment.
daylight of the mould carrier had to operate between a DCPD Resins contain also additives to improve the Anti-corrosion - Marine parts: Parts for the chlorine/caustic
minimum of 500mm and a maximum of 1300mm requiring processability of the liquid resins, for example by lowering the industry, such as the cell cover, made out of DCPD, are more
a long platen stroke. This in turn lead to the decision to freezing point down to 0° C. The choice of the additives and co- than an inert barrier over the electrical hardware. Low thermal volume quality components
place the mould carriers in a pit which allows better monomers is carefully engineered to further enhance the conductivity, high electrical insulation, complete chemical
operator access to the mould and also better access for tool properties of the DCPD polymers. inertness to the reactants and products, DCPD is an integral part DCPD stands apart from all other liquid resin RIM systems of the process.
change. because of the unique patented catalyst system. This catalyst General industry parts: Excellent toughness is required to
From its facility at South Luffenham in the UK the Linecross has a strong reputation as a partner to many resist all kinds of treatment and for a long life. For those custom system makes it possible to vary the gel-time (which marks the
Linecross Group manufacture and supply components prestigious automotive marques in the low to medium The mould carriers are hydraulically operated with containers and pallets, where tooling cost is an important start of the polymerisation) in accordance with the requirements
to the international automotive, transport, leisure and volume OEM market. Components manufactured in SRIM independent hydraulic packs and use PLC control with influence in the choice of the material, DCPD has the of the moulder and the part to be moulded. Not only has the
packaging industries. The continued success of the are ideally suited to this type of market; relatively low touch screen control integrated with a lightguard and competitive edge.moulder full flexibility in production, but new concepts in
Group is based upon their ability to provide total tooling costs and competitive material prices offer the physical barrier safety system. engineering plastics have been made possible by DCPD RIM
customer support from design concept through automotive designer flexibility in design concepts, allowing resins.
development and prototyping, to high quality them the freedom to provide aesthetically pleasing contours Installation of the mould carriers and on site training in
production tooling and manufacture of high within the automotive interior. their use was carried out by Cannon Solutions Technical A careful processor should not think that processing
specification thermoplastic and thermoset service team and commissioned to the customers equipment for DCPD can easily be obtained by the adaptation
components. Many of the components manufactured will be covered in other materials and must also conform to stringent control satisfaction.
of flexural strength, resistance to temperature etc. all of Cannon Solutions – UK the Cannon Group's
which SRIM polyurethane can provide. Cannon Solutions have a long standing relationship with manufacturing facility for special products – recently
the Linecross Group and will continue to supply after sales installed two book opening mould carriers to produce
Both mould carriers were designed and manufactured by service for many years to come. automotive interior components in Polyurethane SRIM
Cannon Solutions UK Ltd in their facilities at Trafford (Structural Reaction Injection Moulding).
Park, Manchester with the customer fully involved in the
design to ensure the mould carriers would meet their The mould carriers were required to increase production
exacting requirements.and to improve flexibility in as the requirements of the
Linecross mean that moulding tools are changed regularly Both presses have a similar platen area, the larger being 2300 x 1300mm the PURMAQ PropertiesEngineering plastics with a wide range of applications must have Main advantages
to meet production demands. smaller 2000 x 1300mm and are designed to have a clamping force of 120 t. a wide range of properties: DCPD is no exception to this rule.
DCPD has the possibility to make complex parts modules and DCPD polymers have an excellent combination of stiffness and
As the result of an excellent understanding can compete advantageously with traditional high volume impact strength, as well as having very low density. materials and processes offering:
between organizations which have similar They generally do not require any de-moulding agent and any • Low part cost
objectives and wishes, PURMAQ LDA. was glass fibre reinforcement. The range of application • High perceived quality through the unique capability to
nominated agent -distributor of CANNON temperatures is very wide: from -40 °C to over 110 ° C. produce monolithic structures
products in Portugal. Resistance to acids and bases at all operating temperatures is • Fine aestheticsextremely good. The high quality surface appearance gives
• Good part integrity and dimensional stabilityhigh quality painted parts, with simple surface preparation.
Young team, but with great experience on the • Weight savingsPainting is always required. • Part design freedom in terms of variable thickness
Polyurethanes sector, placed at Maia city (6 Km DCPD polymers have excellent electrical insulation properties. within the piece
from Oporto) is formed to give all the technical • Part engineering freedom, by the possibility to use
and commercial support to the equipment and Applications inserts in the mould
installations from CANNON. For automotive and after market, sport and leisure and • Lower investments for machinery, tooling in comparison
(www.purmaq.com) gardening equipment: DCPD meets the automotive challenge, with other technologies (RRIM, SRIM, etc)providing cost-reduction on the assembly line by part
consolidation. A homogeneous "look" and quality surface
appearance (with the standard paint systems) is possible with
good tools. DCPD parts are ready to paint and achieve a high-
quality finish for the right image and sports look.
Cannon equipment for DCPD processing
Cannon have developed dedicated metering machines and
moulding systems to process DCPD:
• High pressure metering units and mixing heads.
Conceived specifically for this application, these dosing
machines and heads perfectly suit the peculiar chemical and
physical characteristics of the DCPD process.
All pictures courtesy of TELENE s.a.s - www.telene.com
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