RFP - Rubber Fibres Plastics International

Dear Reader,

My name is Jörg Spangemacher. I have been a successful journalist and publisher for more than 40 years. During this time, I have turned each specialist title (German, English and Chinese) I managed into market leaders in terms of subscriptions and advertising sales.

After my family took over all shares in the company, I became the publisher and managing director of Dr. Gupta Verlags GmbH on 1 September 2021.

After a transitional phase, the publishing house will now be completely reorganized – to the benefi t of all. Together with the most important editors, we are currently developing a new contemporary appearance with additional journalistic content. How this work is coming to life will be refl ected in the fi rst issue of each magazine next year.

At the same time, new, qualifi ed employees in administration and sales are modernizing the internal processes of our publishing house. All business areas are being reorganized, supported by the installation of state-of-the-art digital infrastructure for internal and external communication.

In this way, I can assure you that Dr. Gupta Verlags GmbH, with its high-quality German and international titles, will be led into a successful future - building on its traditional past.

Dr. Gupta Verlag is fi rmly committed to the interests, goals and values of the rubber industry. Therefore, I will be pleased if your company recognizes this and your marketing budget will take our titles into account.

I would also like to invite you to send interesting and groundbreaking technical articles and presentations by your employees to our editors for publication at any time – but without advertising content. After all, a serious trade journal thrives on well-founded information, objective facts and open discourse from the industry whose interests it represents. This will only be possible if your company underlines its affi liation with the industry with a statement in the form of trade-specifi c advertisements – with the effect that you can address your customers directly.

If you have any questions or suggestions, please call me at any time or send me an e-mail:
Phone: +49 172 668 5550
Mail: j.spangemacher@gupta-verlag.de

With kind regards
Jörg Spangemache


Fakuma recap:
A welcome opportunity for personal exchange along the value chain

The 27th Fakuma international trade fair for plastics processing celebrated an inspiring restart in Friedrichshafen from 12-16 October 2021. Organiser Schall welcomed in total 1470 exhibitors from 39 countries. (2018: 1933 exhibitors). Approximately 30,000 visitors attended the show (2018: ca. 48,000), happy to be able to meet customers and business partners in person again.


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European Plastics Converters:
Different packaging rules across EU member states

According to European Plastics Converters (EuPC) European plastic packaging manufacturers are concerned that many member states have either not implemented the mandatory requirements of the EU Single-use Plastics Directive (SUPD) in time or provide for exemptions and tightening.


Plastics Industry Association report:
“Plastics have smaller environmental impact than alternatives”

The U.S.A. Plastics Industry Association (PLASTICS) has published a report in October 2021 that analyzes scientific data on the environmental impacts of plastics.


Foaming simulation:
Bubble shrinkage no longer unpredictable

In the plastic foaming injection process, the supercritical fluid (N2 or CO2) and the melt are firstly mixed into a uniform single-phase fluid through the screw, and the homogeneous mixture leads to thermodynamic instability due to instantaneous pressure release during the injection process. It makes the supercritical fluid in the melt generate tens of thousands of tiny bubbles through phase change, and after the mould cooling and solidification, the products with cell structures are obtained.


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Shaping sustainable recovery:
Fall Conference 2021 of the German wdk

Markets, liquidity problems in the automotive supply chain, and increasing regulation – these mixed and volatile developments were the focus of this year's fall conference of the Wirtschaftsverband der deutschen Kautschukindustrie (wdk, German Rubber Industry Association) held in Frankfurt am Main on 18 November 2021. Around 200 participants – in person as well as online – followed the fall conference, which was held as a hybrid event for the first time.


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New books

  • Rubber Reinforcement with Particulate Fillers
    Meng-Jiao Wang, Michael Morris, Hanser, Munich, 1. edition, 2021, 550 pages, hardcover, 199,99 EUR, 978-1-56990-719-1, ebook, 159,99 EUR, ISBN 978-1-56990-720-7
  • Ecodesign – A Life Cycle Approach for a Sustainable Future
    Karine Van Doorsselaer, Rudolf J. Koopmans, Hanser, Munich, 1. edition, 2020, 269 pages, hardcover, 99,99 EUR, ISBN 978-1-56990-861-7, e book, 79,99 EUR, ISBN 978-1-56990-895-2


Silicone elastomers
Graphene nanotubes enable touch screen use for prosthetic hands

The use of graphene nanotubes in fingerstalls made of electrically conductive silicones allowed scientists from Motorica to make functional prosthetic hands that can interact with touch screens.


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Silicone elastomers
Silicone elastomer for optical applications

The demands on materials involved with light management are becoming broader and more stringent as applications continue to push the technology requirements for optical materials. A material that has excellent UV and thermal stability, good physical properties and excellent processability is clearly an asset to a materials engineer. Optical silicone elastomers have excellent processability, inherent UV stability, low glass transition temperature (Tg), inherent high temperature stability and flame retardance.


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Silicone elastomers
Market report: Silicone elastomers rebound strongly from Covid disruption

A new report from Smithers shows that silicone elastomers have been one of the better performing segments of the market in the past two years.


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Mineral kaolin for rubber reinforcement

Hydrous aluminium phyllosilicates or clay minerals such as kaolin (China clay) are relatively inexpensive and less toxic than carbon black for use in rubber. EPDM is used to make a wide range of industrial rubber articles such as conveyor belts, roofing sheets, and electrical cables. Raw EPDM rubber is mechanically weak and requires reinforcement with solid fillers. This study measured the effect of reduced chemicals on the cure and mechanical properties of an EDPM rubber reinforced with an increasing loading of a mineral kaolin filler. The filler was pre-treated with a mercaptosilane to improve its dispersion in the rubber. The addition of up to 60 phr by weight of kaolin, shortened the scorch time but had a detrimental effect on the optimum cure time and the rate of cure. The hardness, tensile strength, elongation at break, stored energy density at break, and tear energy improved noticeably when kaolin was added to the rubber. The early indications are that a significant improvement in the mechanical properties is achievable, despite reducing the chemical curatives by almost 57 wt%.


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TBP as a nitrosamine-free alternative to OTOS in natural rubber compounds

As a curing additive OTOS (N-oxydiethylenethiocarbamyl-N'-oxydiethylene sulfonamide) is known to impart rubbers with a very low compression set and very good dynamic properties. It is commonly used in natural rubber compounds. Due to its toxicity OTOS will have to be replaced. Besides the single REACH registered supplier decided to disrupt its production. A t-butyl-phenol disulfide based polymer, TBP could be a viable replacement for OTOS in natural rubber compounds.


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