News from Composite & Electrical

Over the recent decades the produced amount of fiber reinforced plastics has grown dramatically, leading to unsolved questions concerning the disposal of these materials after their end of life cycle. The thermal disposal in incineration plants or in the cement industry is for sure not a sustainable solution of this problem. Not to mention the special problems caused by incompletely combusted carbon fibers, leading to troubles and short circuits in filter devices.

Aditya Birla has developed a new class of amines, enabling the chemical cleavage of epoxy resins by means of cheap solvents based on renewable raw materials. By separating the duroplastic matrix from the reinforcing fibers the recovery of both materials becomes possible and the recycling is significantly eased.

The newly developed resin system YDL 5557 / THR 9357 can be used for the vacuum infusion process and distinguishes itself by a very long pot life and a low viscosity. Composite parts made thereof show mechanical and thermal properties being absolutely comparable with conventional epoxy resins and can for instance be used for production of sporting goods, boats or rotor blades of wind turbines.

 

TDS Epotec YDL 5557 – THR 9357

Current SMC parts suffer from a bad image with regard to styrene emissions as well as limited mechanical properties in relation to their weight. For these reasons, in the recent years there was a growing interest in SMC applications based on epoxy resins.

CeTePox® AM 3802 is a newly developed product, offering a thermal stability up to 150 °C and can be processed in a cycle time below 10 minutes. Parts made thereof have a shiny surface and provide a high degree of mechanical strength.

Using optimum process conditions, an upper fiber volume content of 55 – 60 % can be achieved.

You are looking for a product to fix large-area textiles without additional equipment?

FabFix™ Blue and FabFix™ Clear combine easy handling with strong adhesion! Our FabFix™ Spray adhesives are packed in handy spray cans and allow application of spray adhesive by hand.

FabFix™ Blue and FabFix™ Clear are epoxy based spray adhesives and are perfectly suited for preparation and fixation of preforms. Never mind if you are using epoxy or vinyl ester resin our FabFix™ Spray adhesives are compatible with your favored handy-lay-up, Infusion or RTM systems.

FabFix™ Blue offers fast visual detection and control of applied amount of spray adhesive due to its blue color. FabFix™ Clear is optimally suitable for optically sophisticated components.

 

No matter if railway-, aerospace-, automotive- or marine- applications, in all areas the fire protection of composite parts is getting higher attention.

With CeTePox® AM 3661 A/B CTP Advanced Materials GmbH is providing a highly filled epoxy gelcoat for various fire protection applications.

The protective layer can either be applied as gelcoat directly into the mold or be used as a topcoat, by varnishing the ready-made composite part. The system can be applied by a roller in arbitrary thickness, typically in the range of 0,5 up to 1 mm. By heating to 40 – 60 °C the viscosity of the product can be reduced, in order to enable the spraying of the material.

Composites, being protected with CeTePox® AM 3661 A/B, are able to pass various national and international fire standards, like ASTM E 84, DIN EN 45545, DIN 4102, IMO FTP 3.

 

TDS CeTePox® AM 3661 A/B

Talk to us – we will be happy to advise you!

This low-viscosity epoxy resin system is hardly inflammable. In contrast to the vast majority of resin systems available on the market, it is free of solid flame retardants, so it can easily be used for resin injection or infusion processes, maintaining an excellent surface quality and transparency of the fabricated components. 

The resin component XP 345 A can be combined with several different hardeners to meet special requirements like hardening conditions, cycle time or thermal stability. 

In the case of particularly high requirements regarding fire characteristics or smoke density, it is possible to increase the resistance of the composites by adding small amounts of solid flame retardants to meet the requirements for rail vehicle construction (i.e. EN 45545). 

In addition, we offer fire protection gel coats and high-performance prepreg systems for the highest fire protection requirements, which are well suited to meet the requirements of rail vehicle construction, the aviation industry or shipbuilding. 

TDS CeTePox® AM XP 345 A / B

Get in touch for a consultation – We would love to help.

News from Coatings & Construction

We would like to inform you that the labelling of salicylic acid (CAS 69-72-7) will change as of May 1, 2020. This change corresponds to regulation (EU) 2018/1480 of October 4, 2018 of the European Parliament, amended for the purpose of adapting it to the current technical and scientific progress, regulation (EG) No. 1272/2008 of the European Parliament and the European Council regarding the classification, labelling and packaging of substances and mixtures as well as the amendment of regulation (EU) 2017/776 of the European Commission.

According to the new classification (H361d / Repr. 2) of salicylic acid as a reprotoxic substance, all products that contain more than 3% salicylic acid are marked with the pictogram GHS 08 (health hazard).

As with all dangerous substances, salicylic acid must be specified in section 3 of the safety data sheet if the content in products already marked as dangerous is above 0.1%. This means that if the salicylic acid content is between 0.1% and 3%, the GHS08 pictogram does not appear on the labels, but the raw material salicylic acid is listed in section 3 of the safety data sheet.

As soon as we were informed of these changes, we made great efforts to develop products with a reduced (<3%) or even completely replaced salicylic acid content.

Below is a list of our newly developed products:

Products containing salicylic acid Products with reduced salicylic acid content Products free of salicylic acid
CeTePox® VP 2203-27 H CeTePox® 1474-01 H CeTePox® 1474 H
CeTePox® VP 388-69 H CeTePox® 1472 H
CeTePox® 1588 H CeTePox® 1588-01 H
CeTePox® 1594 H CeTePox® 1594-01 H
CeTePox® 1393-08 NF H CeTePox® 1393-05 H
CeTePox® 1396 H CeTePox® 1396-01 H
CeTePox® 1537 H CeTePox® 1537-01 H

Here you can find more information about the new developments.

Präsentation VP 2203-27 H vs 1474 H

Präsentation 1594 H vs 1594-01 H

Präsentation 1393-08 NF H vs 1393-05 H

Präsentation 1396 H vs 1396-01 H

Präsentation 1537 H vs. 1537-01 H

In addition to these already optimized options, other binders from our portfolio are affected as well! We will continue working on other alternatives and technical solutions to this problem.

Please check, whether this new hazardous substance classification and the associated change in labelling are relevant for your company.

If you need technical support, further technical information, samples or TDS of the above products, please send your request to ctp@ctpgmbh.de.