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Case studies / Friction
Controlling the degradation of the phenolic resin: The role of titanates on a friction material.
A clean PAD ensures the stability of its properties during its lifetime

To obtain a top-notch friction material, it is not enough to protect the phenolic resin. Indeed, it is a key parameter the control the performance and wear of the finished product. However, HOW this organic binder decompose is a crucial factor that will determine the comfort and the NVH properties of the pad.  Can we control this? Let’s go deep on that.

We start from the fact that the mentioned phenolic resin transforms into a sticky substrate on the friction surface when it degradates. And, as if it was like a smoker/non-smoker lung, a cleaner surface will help us to avoid groan, noise and vibrations, while obtaining a smooth and stable braking. And how can we do so? The answer is on titanates.

By intervening on the thermal decomposition reaction of the phenolic resin, they helps to decompose the long chain, crossed organic polymer that is the phenolic resin into light, small size molecules (monomers, dimers). These are able to volatilize more easily, instead of large size molecules that would get gripped over the friction surface.

TITAN series from TAM Ceramics are a cost-effective alternative to the common titanates available in the market that ensures fibre-free morphology, avoiding health issues.

This way, we obtain a cleaner surface and so, when the counterpart contacts the friction material, we do not have that viscous residue between them which, as you might have guessed, will help us to reduce the CoF (μ) amplitude and improve μ stability, which are straightly related with the NVH and groan properties of a friction material.

Nowadays, there are a wide range of titanates with different morphologies and chemical compositions in the market. However, titanates commonly available in friction industry are a fibrous product with health issues. To make them fibre-free either the production costs are increased or they contain other metals on their composition.

On that lead, since 2019 rimsa has join forces with TAM Ceramics to tackle the challenges concerning this particular aspect of a friction material performance with innovative products specially developed for friction industry.

 

TAM ceramics high quality and cost-effective alternatives includes the new TITAN-S (fibre-safe sodium titanate), while the new TITAN-PS grades are a new option of fibre-safe potassium titanates that contain lower percentage of K2O. TITAN-PV grade guarantees a double digit 0,00% of fibres and ultra-fine particle size.

All them are truly fibre-safe products because doesn’t make fibres while synthesized and have the same mechanism of reaction than the commonly available potassium titanate. Also, TAM collaborates with Buffalo University and Fraunhofer Institut to guarantee by certifications their products are fiber-free.

AKM test evince the similar performance of both sodium and potassium titanates regarding Intra-Stop behaviour and NVH properties, as both share the same mechanism of reaction. TITAN-S also stabilizes the CoF while reducing wear compared to potassium titanate.

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      Case studies / Friction
      The green alternative to the alumina industry
      Roots from plants can absorb the ionic species of metals such as aluminium in acid soils

      Al2O is a standard abrasive used in friction materials to increase the coefficient of friction and keep clean the rotor surface. It derives however in aluminium contamination when in service, aluminum oxide is released to the environment. Roots from plants can absorb the ionic species of metals such as aluminium in acid soils, which has a clear environmental impact, including the growth of these plants due to the bioaccumulation capacity of this element. Furthermore, there are also articles suggesting a possible connection between the increase of the concentration of  Al3+ ions in the environment due to human activity and some neurotoxic diseases in human beings

      Ironically, the increase in the use of the “green” metal can bring massive disruption to the supply chain

      It is considered like that, as among other reasons, it is a key material to reduce weight. However, China is the largest producer of aluminum and Alumina, and uses mainly coal for power. The worrying increase of smog and airborne particulate matter has forced China to boot on his “blue skies” politics, which will cut the production up to 30 %, due to its enormous environmental impact, which would derive in a massive disruption of the supply chain

      Zirconium compounds are getting more and more applications as abrasives in friction industry and, despite their usual higher cost, do not present the previously commented hazards (data provided by Zircon Industry Association).

      They can come from natural, like the zirconium silicate, or synthetic origin, like the zirconium oxide. Moreover, Zircon Industry Association (ZIA) reveals the lower environmental impact of zircon products in comparison with Al2O3

      Friction
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        Contact us
        We would love to talk about your next project

        Do not hesitate to contact us for any question or requirement you may have. We will be happy to collaborate with you

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        Armenteres s / n – Pol.Ind. MATACÀS- Nave 21 08980

        Sant Feliu de Llobregat Barcelona, Spain

        Call us

        +34 93 666 46 11 / +34 635 519 002

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          Case study / Fricción
          Our quality department

           

           

          At rimsa we dedicate all our efforts to ensure excellent quality in each of our products and services, guaranteeing the satisfaction of all customers.

          Our quality department, made up of highly qualified people with vast experience, guarantee the management of all processes according to the ISO9001: 2015 standard.

           

          We are committed to continuous improvement in order to optimize our productivity and quality, which begins with the selection of suppliers and strict quality control of all raw materials. From here we adhere to strict control plans that we apply in all operating processes, until the product is received by the customer.

          We are proud that this effort is recognized by customers, who in the 2019 satisfaction survey rated us with the highest marks in terms of product quality, confidence in rimsa and responsiveness, having stated 52% of the same an increase in the quality perceived in the last 5 years.

           

          Thus, we aspire this 2020 to meet for the sixth consecutive year our goal of 0% customer rejection of manufactured product (0 defects), and for the fourth consecutive year of our commercialized products.

          We guarantee the highest quality standards

          Having made the recycled product the base of our initial growth, our objective is to ensure that the raw material received and the intermediate product are properly analyzed and obey the specified parameters in order to guarantee a homogeneous final product, which complies not only with the specification, but ensure stable performance.

          Regarding the products that we commercialize, the selection of suppliers is essential. From rimsa we guarantee compliance with the specifications before each shipment, with a specific control plan.

          Characterized by an excellent Quality Management System

          Rimsa has been certified by ISO9001 since 2001. As a company that assumes the principles and requirements established by ISO 9001, we adhere to our commitment to quality and recognize that customer satisfaction and continuous improvement are two essential elements. for our organization.

          This year 2020 we will also certify our commitment to continuous improvement in environmental management, as we will complete the integration process of ISO14001. We believe that this is a universal tool that allows evaluating an organization’s efforts to achieve adequate and reliable environmental protection.

          Friction
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            Contact us
            We would love to talk about your next project

            Do not hesitate to contact us for any question or requirement you may have. We will be happy to collaborate with you

            Visit us

            Armenteres s / n – Pol.Ind. MATACÀS- Nave 21 08980

            Sant Feliu de Llobregat Barcelona, Spain

            Call us

            +34 93 666 46 11 / +34 635 519 002

            Write to us

            friction@rimsa.com

            Or leave us a message and one of our agents will contact you