Emerald‘s high performance antioxidants, plasticizers, nucleating agents, epoxy resins and modifiers are the key components you need to ensure lasting performance and optimize processing characteristics. Today‘s toughest, most flexible plastics rely on Emerald‘s innovative chemistry and expertise. Featuring:

Emerald Performance Materials  

https://www.emeraldmaterials.com

Additive

Kunststoff Werkstoffe

Antioxidantien

Beschichten von Kunststoffen

Chemisches Bearbeiten (Auftragen)

Oberflächentechnik

Beschichten von Metallen, allgemein

Duroplaste

Farbstoffe

Harze

Holz

Kautschuk / Elastomere

Klebstoffe

Chemisches Fügeverfahren

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Kunststoffverarbeitung: Verfahren

Silikone

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Verbundwerkstoffe / Werkstoffverbunde

Vernetzungsmittel

Weichmacher

Marbling is often a real eye-catcher in plastic components. However, the effect is difficult to create and there are some pitfalls when it comes to reproducibility. Novel nozzles for injection molding machines in combination with a special dosing technology allow marbled molded parts to be produced far more easily in a much more robust process.

Marbling leads to attractively designed molded plastic parts, but is not so easy to implement in production

A 3D-Printed Nozzle and Modified Dosing Method Deliver Reproducible Marbling  in a Robust Process

Spritzgießen

Spritzgießwerkzeuge

Kunststoffverarbeitung: Maschinen und Komponenten

Werkzeuge für die Kunststoffverarbeitung

Kunststoffe

Photonik

Optik

Dienstleistungen

Werkzeug-, Formen- und Modellbau

Additive Fertigung

Farben, flüssig

Exciting Design instead of  Exciting Manufacturing

tesa develops e. g. adhesives for smartphone components and investigate the added value that additive manufacturing with plastics freeforming can bring.

“Printed” pressure-sensitive adhesives can be used, for example, to bond smartphone components together, without producing any waste

16:9

tesa Uses Freeformer for Novel Bonding Applications

Arburg Kunststoff Freiformen

Verfahren für die additive Fertigung

Freiraumverfahren

What Holds the World together

are continuing their advance as lightweight engineering materials. An important factor in the part design is the orientation of the fibers in the loading direction. However, the method of laying individual fiber rovings in the direction of force is almost never used. It is facilitated by a new process in which a robot tracks the lines of force and fixes the filaments with a cold adhesive system. 

Kohlenstofffasern / -matten

Faserverarbeitung

Verbindungstechnik

Fiber Composites: Adhesive Fixing of Rovings Increases Load Bearing 

In the medical device field, materials and end products must satisfy extremely demanding requirements. Adhesives are being used to an ever-increasing degree to join individual components, with a trend toward techniques employing light-curing adhesives 

Medizintechnik

Trends at the Exhibition: Biocompatible Thanks to the Process 

Bonding plastics poses a challenge because of the special problems associated with low-energy surfaces. While these can prove intriguing for researchers and users alike, they can be resolved successfully thanks to innovative adhesive technologies and high-performance bonding solutions. 

Surfaces: The Art of Strong Bonds 

At the European Coatings Show 2015, Wacker Chemie AG, Munich, Germany, will introduce novel, silane-terminated polymers for the formulation of industrial adhesives and for sealing flat surfaces. Known as Geniosil XT, the new binder makes it possible to produce materials that are extremely tear-resistant and at the same time highly elastic. 

Highly Ductile and Tear-Resistant 

Polyether

Silane-Terminated Polymers for High-Performance Adhesives 

Resulting from a partnership agreement signed in 2011, a new lactide (Puralact B3, Corbion) caprolactone co-polymer (Capa, Perstorp) has been developed by Perstorp Holding AB, Malmö, Sweden, and Corbion, Amsterdam, Netherlands, that delivers superior benefits in hot melt adhesive applications. 

Fully Compostable 

Lactide Caprolactone Copolymer for Hot Melt Adhesives 

Panacol-Elosol GmbH, Steinbach/Taunus, Germany, presents a new adhesive from its Vitralit UV 4050s series: Vitralit UV 4050 MV is best suited for bonding plastics, especially for medtech applications. With 450 to 650 mPas Vitralit UV 4050 MV is of medium viscosity. When cured it shows a very good flexibility and an excellent stability. This transparent adhesive has a very low shrinkage of only 2%. 

Vitralit UV 4050 MV 

UV Adhesive for Plastic Bonds 

Huntsman Advanced Materials has announced at JEC World 2016 that it has developed a new epoxy resin system and a novel and cost efficient process to give an entirely new compression molding concept. By combining a new fast-cure Araldite epoxy chemistry with a new compression molding process, Huntsman is not only facilitating the simple production of structural composite parts, but is also enabling cycle times as low as one minute without any further post-curing. For high-volume applications such as automotive, this process makes cost-efficient manufacture of high-performance structural parts using thermoset technology a reality. 

New Compression Molding Process with Araldite 

One-Minute Cycle Time for Structural Composites 

Huntsman introduces two new Araldite adhesives with extended performance in automotive assembly applications. Araldite 2021-1 and 2022-1 will see vehicle manufacturers and the automotive aftermarket benefitting from increased levels of productivity and performance on structural adhesive applications. 

Extend Performance in Automotive Assembly Applications 

Araldite 2021-1 and 2022-1 

The Polyurethanes division of Huntsman has announced the launch of Vitrox ABR adhesives – a new range of specialty, two-component, polyurethane-based resins that can make the manufacture of abrasive products more flexible, time efficient and cost effective. 

Vitrox ABR Adhesives 

Polyurethan

For Abrasive Applications 

Plastic/metal hybrid structures for industrial applications have been established for years, e. g. for front-end carriers in automotive vehicles. Previously, in assembly injection molding joints were based on form/force fit or friction locking. Novel adhesion promoters now permit adhesive bonding of hybrid structures with improved component properties. 

Primer Joins Metal and Plastic Components with Adhesive Bond 

Verbindungstechnik, hybride

Adhesion Promoter for Unequal Pairs 

Demand for commercial aircraft is booming worldwide. With the new flame-retardant structural adhesive, Delo-Duopox AB8162, Delo Industrie Klebstoffe GmbH & Co. KGaA, Windach, Germany wants to make the production faster. The company has developed its new, two-component epoxy resin especially for lightweight structural joints in aircraft interiors, focusing on fast build-up of strength. The resin cures at room temperature, but has been optimized for temperature-accelerated curing. For example, at a temperature of 60 °C, a curing time of 15 minutes is sufficient to achieve functional strength (>= 10 MPa). Consequently, components can be further processed after this time. 

Flame-Retardant Structural Adhesive Delo-Duopox AB8162 

Lightweight Construction in Aircraft Interiors 

Dow and Menshen present a new transformative Reverse Spout Sealing Technology that enables the production of spouted pouches made of mono-material films. This technology allows converters to address the recycling criteria for flexible packaging and can help brands meet their sustainability packaging goals.  

Reversing the Traditional Sealing Process Brought the Solution 

Kunststoff-Recycling

Dow and Menshen bring Sustainable Design to Spouted Pouches 

Online Tool for an Easier Adhesive Search

Searching for the right adhesive is a very complex process. The wide range of manufacturers and products makes it hard to keep track. Users can find a suitable adhesive more easily and quickly with the Substratec search engine. Further functions have now been added to this search engine.

These days, even in the business world, products are often searched for online. For complex problems, however, this search, frequently via Google, quickly reaches its limits. The range of suppliers and products is just too confusing. Since 2016, the search engine Substratec (<a href="http://www.substratec.com">www.substratec.com</a>) has been offering a more targeted way to find the right adhesive. This year, the website is to be relaunched with the introduction of various new functions.

At the heart of Substratec is the substrate navigator. This is an online tool that makes it possible to search for adhesives according to various categories. Users first specify the two substrates they want to join. Then they can choose further parameters such as heat resistance, curing mechanism, and processing. Over 100 different substrates and 26 parameters are available.

On the basis of this selection, an algorithm determines which adhesives can be considered and how suitable these are. On the results page, users can see the possible adhesives displayed together with an assessment of how far, in percentage terms, they meet requirements. The basic data for the algorithm come from the technical data sheets of the adhesives and the information provided by the manufacturers. “We carry out a substrate comparison together with the manufacturers, in which we discuss how well an adhesive works with different substrates,” explained the founder of Substratec, Andreas Reisenzahn.

For the algorithm, the various parameters were also assessed for their relevance to the adhesive bond. Heat resistance, for example is therefore a KO criterion. If an adhesive fails to meet the specified expectations in this respect, it is automatically rejected. With other parameters, on the contrary, it is only downgraded.

Until now, the relevance of the criteria has still depended on the assessment of the Substratec creators. After the relaunch, however, users themselves can determine how important certain parameters are to them and what might even be KO criteria. “In the new version of Substratec, users themselves can determine which adhesive properties are key to them. While we may not regard, for example, the color of the adhesive to be particularly important, it may play a crucial role for many users and even be a KO criterion. In future, we would like to allow users to make this judgment themselves,” explained Reisenzahn. Once website visitors have decided on an adhesive, they can see additional information displayed on an overview page and download the data sheet. They also have the option of contacting the manufacturer via a form.

So far, some 400 adhesives from 30 different manufacturers, including names such as Weiss Chemie and Rampf, can be found through the search engine. This number is set to increase, thinks Reisenzahn, especially since the website has been available in English as well. International companies, in particular are showing great interest. Merz+benteli AG and Kisling AG, two Swiss companies, for example, now are added. The search engine’s database does not actually include every available adhesive and manufacturer. The Substratec business model is based on companies paying an annual fee for mention on the website. The fee is determined by how many products are listed. At present, companies can list a maximum of 20. This is intended to prevent a manufacturer from dominating the search engine.

Besides searching via substrates, it will also be possible to see suitable adhesives displayed for different application sectors such as automotive, medical technology or microelectronics. This application navigator is at present still in the beta phase but should be fully available from May. In addition, visitors to the website can see companies displayed by competencies and areas of application served. As well as these navigators already available on the website, further ones will be introduced during 2020. For example, one is planned for application technologies and machinery. With this navigator, users will be able to search for fully and semi-automated adhesive application machines and manual dispensing equipment. “At this point, crosslinking between the search engines begins. Website visitors searching for a specific adhesive will also receive suggestions as to how it can be applied. And vice versa, the application machinery display will show the adhesives for which the equipment is suitable. This gives users a comprehensive insight into the whole subject of adhesives,” said Reisenzahn, summing up the concept.

By the end of the year, a search engine for coatings is also planned. With this tool, users will be able to see coatings displayed for various substrates. Here again, it will be possible to refine the search using different parameters such as corrosion classes, and abrasion and chemical resistance. In 2021, a navigator for 3D printing will be added. This will include both materials and software tools as well as the actual printers. Reisenzahn believes the individual navigators complement each other, which therefore offers users of Substratec an extra benefit: “Where companies carry out adhesive bonding, they are frequently also involved in coating application, and vice versa. In 3D printing, too, post-processing is very important, often with coatings. There are very many synergies between these two sectors.”

Substratec GmbH  

https://www.substratec.com

Ausgabenartikel

The adhesives market is complex. The Substratec search engine promises a quick overview of possible products

Substratec - Hauptartikel

Streifinger, Florian

Beschichtungen

issue 03/2022

issue 02/2022

issue 01/2022

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