Img preview " Development of a new Bio-Composite from renewable resources with improved thermal and fire resistance for manufacturing a truck internal part with high quality surface finishing "

TECHNOLOGICAL WATCH SERVICE
NEWS

Fire Resistant, Sprayable and Ecologically Friendly

The new development is based on the tried and tested BMC 0204, which already contained two eco-friendly materials with calcium-carbonate as a bulking agent and ATH as a flame retardant. The new natural fibers also replace the glass fibers, which leads to lower energy consumption during production, which in turn leads to an improved carbon footprint.

The type and length of the fiber to be used can be chosen according to the intended use; for instance, compounds with sisal are characterised by a very low degree of processing shrinkage of -0.1 to -0.3 %, while cotton-reinforced thermosets have a high elasticity modulus of over 8,000 MPa and a low abrasion. They all have a very low density of 1.65 to 1.7 g/cm3, which leads to lower weights, even in comparison with FRP. This makes the produced parts ideal for lightweight construction.

Flame retardant, moisture resistant and flexibly processable

Natural fiber-reinforced plastics (biocomposites) generally offer good thermal and acoustic insulation. By changing the actual composition of the BMC, the specific properties can also be adjusted individually. This allows giving the normally highly flammable natural fibers excellent fire resistant properties. In UL94 flammability tests, a 1.5 mm thick sample could be put out within ten seconds. This result corresponds to the best classification, V0.

The problem of moisture absorption, very common in biocomposites, could also be solved through the right material composition so that, measure according to ISO 62, it is only at â?¤ 0,5% for the eco-friendly BMC with cotton, â?¤ 1,3 % with jute and â?¤ 1,8 % with sisal.

  • Cotton ...

  • Jute ...

  • or sisal: the new eco-friendly BMC by Lorenz Kunststofftechnik save energy during production by replacing the standard glass fibers with natural materials. This gives the materials an outstandingly low carbon footprint and allow for ecologically friendly recycling or recovery

  • Thanks to their low density, the natural fiber-reinforced plastics are lighter than even regular FRP without losing any of their rigidity and robustness, which can be fine-tuned even further by individual adjustments to the composition

  • As BMC, the Lorenz eco-material composites can be produced not only through compression moulding, but also in injection moulding. The allows for more complex geometries to be produced from the ecologically friendly materials as well

  • With a UL94 classification of V0 for a 1.5 mm sample, the ecologically friendly materials achieve the highest fire protection class

1 | 0 loadSlideAdFunctions['4_6319'] = function() { loadAd4_6319(); }; function loadAd4_6319(){ var adSearchMarker = 'search.text='; var adSearch = '; var adKey = '; if(typeof window.location.search !== 'undefined' && window.location.search.indexOf(adSearchMarker) !== -1 ){ var pos = window.location.search.indexOf(adSearchMarker); adSearch = window.location.search.substring(adSearchMarker.length + pos, window.location.search.indexOf("&",pos) ); if(adSearch.length !== 0){ adKey = escape(decodeURIComponent(adSearch)); } } if(typeof ADTECH === 'object'){ $('#6290423').parents('div.slideshow').find('.slideAd.position4').remove(); $('#6290423').parents('div.slideshow').find('.slideAd.position9').remove(); $('#slidead_6319_4').attr('id', '6290423'); var script = document.createElement( 'script' ); script.type = 'text/javascript'; script.text = "ADTECH.config.placements[6290423] = { sizeid: '154', complete: function() {adjustAds()}, params: { target: '_blank', key: '+adKey+' }};ADTECH.enqueueAd(6290423);ADTECH.executeQueue();"; $('#6290423').append(script); } }

Commercial - the next slide will be displayed in seconds - skip

loadSlideAdFunctions['9_6319'] = function() { loadAd9_6319(); }; function loadAd9_6319(){ var adSearchMarker = 'search.text='; var adSearch = '; var adKey = '; if(typeof window.location.search !== 'undefined' && window.location.search.indexOf(adSearchMarker) !== -1 ){ var pos = window.location.search.indexOf(adSearchMarker); adSearch = window.location.search.substring(adSearchMarker.length + pos, window.location.search.indexOf("&",pos) ); if(adSearch.length !== 0){ adKey = escape(decodeURIComponent(adSearch)); } } if(typeof ADTECH === 'object'){ $('#6290422').parents('div.slideshow').find('.slideAd.position4').remove(); $('#6290422').parents('div.slideshow').find('.slideAd.position9').remove(); $('#slidead_6319_9').attr('id', '6290422'); var script = document.createElement( 'script' ); script.type = 'text/javascript'; script.text = "ADTECH.config.placements[6290422] = { sizeid: '154', complete: function() {adjustAds()}, params: { target: '_blank', key: '+adKey+' }};ADTECH.enqueueAd(6290422);ADTECH.executeQueue();"; $('#6290422').append(script); } }

Commercial - the next slide will be displayed in seconds - skip

  • Cotton ...

  • Jute ...

  • or sisal: the new eco-friendly BMC by Lorenz Kunststofftechnik save energy during production by replacing the standard glass fibers with natural materials. This gives the materials an outstandingly low carbon footprint and allow for ecologically friendly recycling or recovery

  • Thanks to their low density, the natural fiber-reinforced plastics are lighter than even regular FRP without losing any of their rigidity and robustness, which can be fine-tuned even further by individual adjustments to the composition

  • As BMC, the Lorenz eco-material composites can be produced not only through compression moulding, but also in injection moulding. The allows for more complex geometries to be produced from the ecologically friendly materials as well

  • With a UL94 classification of V0 for a 1.5 mm sample, the ecologically friendly materials achieve the highest fire protection class

1 | 0

Commercial - the next slide will be displayed in seconds - skip

Commercial - the next slide will be displayed in seconds - skip

Unlike the traditional, often thermoplastic biocomposite panels, the production as BMC also opens up different processing options. It allows for parts to be produced not only in compression moulding processes, but also in injection moulding. This means that more complex and delicate parts, which up until now could only be produced from FRP, can be produced from biocomposites as well. The required moulding temperature in the cylinder is 20 to 40 °C and, in the mould itself, 140 to 170 °C. This means that the material is suitable for various fields of application; from large parts, for instance in car interiors, to tiny components, for example in electronics.

Eco-friendly and recyclable


All Lorenz natural fibre thermosets can be recycled; 100 percent of cutting and punching waste can be reused, in accordance with their material composition. Energy recovery of the fibres is carbon-neutral and they burn without residue. Since the RoHS conforming composites also contain neither halogens nor any heavy-metal compounds, they are overall highly ecologically friendly and harmless to humans and the ecosystem. To further enhance this, the experts at Lorenz are already at work on an organic resin matrix which is to replace the polyester resin currently used. With this, a composite material made entirely of natural substances is achieved.

» More Information

« Go to Technological Watch










This project has received funding from the European Union Seventh Framework Programme (FP7/2007-2013) under grant agreement n° [605658].

AIMPLAS Instituto Tecnológico del Plástico
C/ Gustave Eiffel, 4 (València Parc Tecnològic) 46980 - PATERNA (Valencia) - SPAIN
(+34) 96 136 60 40
naturtruck@aimplas.es