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Elastosil - FVMQ, VMQ - Wacker Chemie AG
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Kunststoffe international, 2005-11-21, Driving the Automotive Industry: Engineering Elastomers
Trend Report Crosslinking Plastics Engineering Elastomers Driving the Automotive Industry. Within the elastomer-manufacturing industry, there is increasing concentration and focus on product groups. Regardless of this, the trend towards relocating production of standard products within the expanded European Union continues to advance. In the future, China and India will also increasingly emerge both as markets and production locations for engineering elastomer products. Werner P. Lauhus The Eu...
Kunststoffe international, 2005-11-21, Elastomers
... for extrusion (hose and profiles). Wacker Chemie, Burghausen/Germany, also offers solid and liquid rubbers. At K’01 it presented ElastosilLR 3023/60, a new coolant-resistant liquid silicone rubber for radiator seals. This material guarantees leak tightness and resistance up to 200°C. A self-adhesive product grade, ElastosilLR3070/40 has been developed for rigid/flexible composites. The adhesion promoter migrates to the surface on curing, making it unnecessary to primer the metal or thermopl...
Kunststoffe international, 2005-11-21, Elastomers: Flexible and Customised
...d with any required thermoplastic without compatibility problems. Preferred uses include compounds for cable applications and moulded automotive components. The extremely media-resistant liquid silicone fluororubber Elastosil FLR (Wacker-Chemie GmbH) for high-quality seal applications can be readily coloured and is therefore able to meet mandatory coloured labelling requirements that apply in certain cases. An enhanced sealing effect is promised by a silicone oil incorporated into the material,...
Kunststoffe international, 2005-11-21, Materials with Multiple Functions
...sliding qualities with relatively small wall thickness are required [2]. High voltage shielding: Due to the high voltage the energised connection of a CRT monitor requires particularly good screening. Anode caps made of silicone rubber (Elastosil) from Wacker insulate the electrical contact from other components. High requirements are put on the shaped part concerning the dielectric strength and flame resistance. Additionally it must to be heatproof and possible to manufacture fully automatical...
Kunststoffe international, 2005-11-21, Multi-component Technique: Safeguarding the Future through Process Integration
Special Safeguarding the Future through Process Integration Multi-component Technique. Multi-component injection moulding has gained enormous importance over the last fifteen years. This is due both to the development of sophisticated products and to the efforts being made generally to economise. The combination of well-known processes, such as sandwich moulding with injection-compression moulding or the fluid injection technique, offers fresh possibilities for lowering costs and creating inn...
Kunststoffe international, 2005-11-21, Silicone Composites
...bonnet applications in the automotive industry [3]. An "office butler" produced by two-component injection moulding from a semi-aromatic polyamide (grade: Trogamid CX 7323, manufacturer: Degussa-Hüls AG) and a liquid silicone rubber (grade: Elastosil LR 3070/40, manufacturer: Wacker-Chemie GmbH) was developed as part of a research project at the IKV Plastics Processing Institute in Aachen (title picture). Composite Technologies One of the properties typical of silicones is their hydrop...
Kunststoffe international, 2006-02-23, Silicone Elastomers: An Attractive Alternative
...ducing hard/soft composite parts using a self-adhesive, fast-curing liquid silicone rubber grade. A self-adhesive LSR requires neither an undercut nor a primer for anchoring the two components. Because liquid silicone rubber (such as Elastosil LR 3070) bonds very rapidly to the thermoplastic substrate, thermoplastic/silicone elastomer composites can be produced in a single operation by a fully automated two-component injection moulding process. Such a process can produce, for example, multifunc...
Kunststoffe international, 2006-04-24, Silicone Foams: Significant Weight Reduction
...uck in order to obtain a good quality foam. This is easy to illustrate by showing the effect on the extrusion of a conventional peroxide-curing solid silicone of changing the amount or nature of the peroxide. In Fig.1, the blowing agent is Elastosil AUX MTB, which generates an open-cell foam, i.e. one with an “empty” structure and thus low densities. In the following discussion, the base mixture (a grade with 40 Shore A hardness) and the dosage of MTB (1%) remain unchanged. When we increase the...
Kunststoffe international, 2010-09-24, Elastic Diversity
...id silicone rubbers with good friction properties. Silpuran 2149 UV silicone adhesive, which is suitable for wound closure plasters, is attracting considerable attention. (Fig. 5). For automotive engineering, e. g. engine mountings, Elastosil R101 injection moldable silicone elastomer is used (Fig. 6). There is no other material that retains almost constant mechanical-dynamic properties over a extreme temperature range of -50 to 180 °C, and even higher with good stabilization. It continues to be...
Kunststoffe international, 2015-11-23, Process Development for the Extrusion of Liquid Silicone Rubber
...hick-walled extrudates or high conveyor speeds. The conveying speeds of the pilot plant for the die and extruded part geometry of 4 mm strand diameter were with 1.7 cm/min too low for industrial production.Experiments with the LSR Elastosil LR 3003/60 (manufacturer: Wacker Chemie AG, Burghausen, Germany) were successfully carried out. Also LSR with lower shore hardness or low-viscosity RTV (RTV = room temperature vulcanizing silicone) can basically be processed in this way. This was shown, for e...
Kunststoffe international, 2018-03-09, Efficient Heat Dissipation
...n hairpins and laminations (Fig. 4). Tests are also being conducted to establish whether the heat can be transported along the copper hairpins to the heat sinks via a thermally conductive silicone encapsulant such as Elastosil RT 744 TC. The use of heat-resistant silicone fluids to actively cool the electric drive components is currently under discussion. Compared with the conventional water/glycol mixtures used to cool modern combustion engines, chemically stable, non-flammable silicone fluids,...
Trend Report Crosslinking Plastics Engineering Elastomers Driving the Automotive Industry. Within the elastomer-manufacturing industry, there is increasing concentration and focus on product groups. Regardless of this, the trend towards relocating production of standard products within the expanded European Union continues to advance. In the future, China and India will also increasingly emerge both as markets and production locations for engineering elastomer products. Werner P. Lauhus The Eu...
Kunststoffe international, 2005-11-21, Elastomers
... for extrusion (hose and profiles). Wacker Chemie, Burghausen/Germany, also offers solid and liquid rubbers. At K’01 it presented ElastosilLR 3023/60, a new coolant-resistant liquid silicone rubber for radiator seals. This material guarantees leak tightness and resistance up to 200°C. A self-adhesive product grade, ElastosilLR3070/40 has been developed for rigid/flexible composites. The adhesion promoter migrates to the surface on curing, making it unnecessary to primer the metal or thermopl...
Kunststoffe international, 2005-11-21, Elastomers: Flexible and Customised
...d with any required thermoplastic without compatibility problems. Preferred uses include compounds for cable applications and moulded automotive components. The extremely media-resistant liquid silicone fluororubber Elastosil FLR (Wacker-Chemie GmbH) for high-quality seal applications can be readily coloured and is therefore able to meet mandatory coloured labelling requirements that apply in certain cases. An enhanced sealing effect is promised by a silicone oil incorporated into the material,...
Kunststoffe international, 2005-11-21, Materials with Multiple Functions
...sliding qualities with relatively small wall thickness are required [2]. High voltage shielding: Due to the high voltage the energised connection of a CRT monitor requires particularly good screening. Anode caps made of silicone rubber (Elastosil) from Wacker insulate the electrical contact from other components. High requirements are put on the shaped part concerning the dielectric strength and flame resistance. Additionally it must to be heatproof and possible to manufacture fully automatical...
Kunststoffe international, 2005-11-21, Multi-component Technique: Safeguarding the Future through Process Integration
Special Safeguarding the Future through Process Integration Multi-component Technique. Multi-component injection moulding has gained enormous importance over the last fifteen years. This is due both to the development of sophisticated products and to the efforts being made generally to economise. The combination of well-known processes, such as sandwich moulding with injection-compression moulding or the fluid injection technique, offers fresh possibilities for lowering costs and creating inn...
Kunststoffe international, 2005-11-21, Silicone Composites
...bonnet applications in the automotive industry [3]. An "office butler" produced by two-component injection moulding from a semi-aromatic polyamide (grade: Trogamid CX 7323, manufacturer: Degussa-Hüls AG) and a liquid silicone rubber (grade: Elastosil LR 3070/40, manufacturer: Wacker-Chemie GmbH) was developed as part of a research project at the IKV Plastics Processing Institute in Aachen (title picture). Composite Technologies One of the properties typical of silicones is their hydrop...
Kunststoffe international, 2006-02-23, Silicone Elastomers: An Attractive Alternative
...ducing hard/soft composite parts using a self-adhesive, fast-curing liquid silicone rubber grade. A self-adhesive LSR requires neither an undercut nor a primer for anchoring the two components. Because liquid silicone rubber (such as Elastosil LR 3070) bonds very rapidly to the thermoplastic substrate, thermoplastic/silicone elastomer composites can be produced in a single operation by a fully automated two-component injection moulding process. Such a process can produce, for example, multifunc...
Kunststoffe international, 2006-04-24, Silicone Foams: Significant Weight Reduction
...uck in order to obtain a good quality foam. This is easy to illustrate by showing the effect on the extrusion of a conventional peroxide-curing solid silicone of changing the amount or nature of the peroxide. In Fig.1, the blowing agent is Elastosil AUX MTB, which generates an open-cell foam, i.e. one with an “empty” structure and thus low densities. In the following discussion, the base mixture (a grade with 40 Shore A hardness) and the dosage of MTB (1%) remain unchanged. When we increase the...
Kunststoffe international, 2010-09-24, Elastic Diversity
...id silicone rubbers with good friction properties. Silpuran 2149 UV silicone adhesive, which is suitable for wound closure plasters, is attracting considerable attention. (Fig. 5). For automotive engineering, e. g. engine mountings, Elastosil R101 injection moldable silicone elastomer is used (Fig. 6). There is no other material that retains almost constant mechanical-dynamic properties over a extreme temperature range of -50 to 180 °C, and even higher with good stabilization. It continues to be...
Kunststoffe international, 2015-11-23, Process Development for the Extrusion of Liquid Silicone Rubber
...hick-walled extrudates or high conveyor speeds. The conveying speeds of the pilot plant for the die and extruded part geometry of 4 mm strand diameter were with 1.7 cm/min too low for industrial production.Experiments with the LSR Elastosil LR 3003/60 (manufacturer: Wacker Chemie AG, Burghausen, Germany) were successfully carried out. Also LSR with lower shore hardness or low-viscosity RTV (RTV = room temperature vulcanizing silicone) can basically be processed in this way. This was shown, for e...
Kunststoffe international, 2018-03-09, Efficient Heat Dissipation
...n hairpins and laminations (Fig. 4). Tests are also being conducted to establish whether the heat can be transported along the copper hairpins to the heat sinks via a thermally conductive silicone encapsulant such as Elastosil RT 744 TC. The use of heat-resistant silicone fluids to actively cool the electric drive components is currently under discussion. Compared with the conventional water/glycol mixtures used to cool modern combustion engines, chemically stable, non-flammable silicone fluids,...
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