Solutions industrielles personnalisées avec des élastomères de polyuréthane
Définition des élastomères de polyuréthane
Les élastomères de polyuréthane sont des matériaux polyvalents qui se caractérisent par leurs excellentes propriétés physiques et leur adaptabilité à un large éventail d'exigences industrielles. Grâce à leur structure unique, les élastomères de polyuréthane de P+S offrent une combinaison exceptionnelle d'élasticité, de résistance à l'abrasion et de produits chimiques
Consistency.
These properties make our materials the first choice for demanding technical applications in numerous industries. For over 50 years, P+S has been developing individual solutions based on polyurethane elastomers — with the aim of combining maximum performance, quality and sustainability.
Chemical structure of polyurethane elastomers
The chemical basis of polyurethane elastomers is the reaction of Isocyanates with polyols, supplemented by crosslinkers,
which stabilize the material in its final structure and functionalize it relevant to the application. Depending on the requirements,
produce a wide variety of polyurethane systems using this basic reaction.
Compact elastomers are characterized by their particularly high mechanical strength and wear resistance. you
are ideal for heavy-duty machine elements such as rollers, damping elements or technical moldings.
With a very wide range of formulations, P+S offers tailor-made material solutions that are precisely tailored to the technical and
are tailored to the economic requirements of customers — always based on the latest polyurethane-elastomer technology.
Differentiation of polyurethane elastomers manufactured by P+S from other elastomers on the market
Compared to other elastomers, in particular rubber grades, P+S polyurethane elastomers offer a wide range of
technical advantages. These include:
High abrasion resistance:
Les élastomères de polyuréthane présentent des propriétés d'usure nettement meilleures que de nombreux types de caoutchouc standard. Ceci est particulièrement avantageux dans les applications abrasives telles que les convoyeurs ou les systèmes de dénudage.
Cellular and compact variants:
La variété des matériaux va des conceptions solides et résistantes à l'usure aux structures en mousse élastique, réglables en fonction de l'absorption d'énergie souhaitée, et permet ainsi une adaptation individuelle à un large éventail d'exigences.
Individual system development:
While standard elastomers are often only available in certain hardnesses and formulations, polyurethane elastomers allow customized design the material properties.
Technically superior to many rubber qualities:
Although rubber is generally cheaper to procure materials, our high-quality polyurethane elastomers impress with significantly longer lifespan, resilience and performance — especially in highly stressed areas.
Lower tool investment costs:
In contrast to injection molding processes — which involve high initial costs for tools — many polyurethane elastomer components can be produced efficiently using the casting process. This is particularly advantageous in small to medium batch sizes.
Excellent volume compressibility:
En particulier dans les applications soumises à des charges de pression élevées, les élastomères de polyuréthane offrent une déformation fiable sans endommager le matériau de manière permanente.
Minimal lateral expansion for foam types:
Cette propriété garantit un transfert de force précis sans expansion indésirable, ce qui est idéal pour les solutions techniques précises, les espaces d'installation restreints et les structures peu encombrantes.
Higher Shore hardnesses can be achieved:
While many elastomers have a limited range of hardness, polyurethane elastomers can have hardnesses of up to 60-64 Shore D achieve — a characteristic that is particularly sought after in mechanical engineering.
Polyurethane elastomer production and manufacturing processes
The production of polyurethane elastomers is a precise and controllable process that has a high level of material expertise
and requires technical expertise. At P+S, we rely on flexible low-pressure casting systems And on to the tried and tested
Hot casting process for producing compact and microcellular polyurethane elastomers.
In contrast to classic injection molding processes — which are used for thermoplastic polymers — our
Proceedings on the Reaction of liquid raw material componentsthat react under controlled conditions. Through the exact
Controlling temperature, mixing ratio and demolding time, we achieve high-quality, homogeneously reacted molded parts with
reproducible quality.
Raw materials and components
The selection of raw materials plays a central role in the performance of the subsequent component. For the production of our
We work with polyurethane elastomers with a variety of high-quality components that allow targeted adjustment of
Material properties enable:
- Isocyanates How to form NDI (naphthalene 1,5-diisocyanate), TDI (toluene diisocyanate) and MDI (diphenylmethane diisocyanate)
together with the polyols, the backbone of polyurethanes. These substances react with polyols to form long-lasting, elastic
structures. - polyols: Depending on the area of application, we use polyester, polyether or polycarbonate polyols. These influence
Properties such as hydrolysis resistance, recovery behavior and media resistance. Within these groups are
numerous types of polyols with different chain lengths and functionalities are available. - Networker: Various chemical crosslinkers are used to specifically control crosslinking density —
either on a petrochemical or bio-based basis. - additives: By adding specific additives, polyurethane elastomers can be further individualized:
- colorway
- antistatic agents
- anti-microbiotics
- Hydrolysis protection
- Glide enhancer
This modular selection of raw materials makes it possible to create a tailor-made property profile for every application — economically and sustainably at the same time.
Polymerization processes
At the core of material production is polyaddition: A chemical reaction in which the isocyanates and polyols are added
from crosslinkers, additives and, if appropriate, propellants react to form a solid, elastic plastic. The exact control of this
Reaction is essential for the reproducibility of product properties.
Polyurethane elastomer injection molding techniques
P+S does not process polyurethane elastomers by injection molding. Our focus is on low-pressure casting and hot-casting processes, which can be used to produce significantly more individual molded parts and higher material properties — even in small series and special formats.
Polyurethane elastomers in the transportation industry
Polyurethane elastomers meet high load capacity and durability requirements in the transportation industry. The P+S materials offer tailor-made solutions for transport applications that enable efficient power transmission and vibration damping.
Transport crowds &
move
Le Vulkollan® et le Diepothan® sont idéaux pour le transport des rouleaux et des composants d'entraînement. Ils offrent une protection élevée contre l'abrasion et une excellente adhérence, ce qui les rend parfaits pour le travail en équipes continues. Leur élasticité et leur dureté garantissent une résistance stable dans des conditions changeantes.
Isolate & decouple vibrations
Vulkocell® and Diepolast® are ideal for vibration and body sound insulation. They offer precise damping characteristics and are compressible, ideal for compact structures and mobile devices, adapted for maximum efficiency in the installation space.
Dampen masses & absorb energy
Diepocell® is the right choice for applications that need to absorb energy. It offers robust buffer elements and is volume-compressible to adapt to installation space and load profile, and is also suitable for global operating conditions.
Polyurethane elastomers in the engineering industry
Polyurethane elastomers are in demand in mechanical engineering due to their adaptability and robustness. They withstand high temperatures and aggressive environmental influences. They are suitable for a wide range of applications, from seals to high-volume dampers.
Seal sensitive areas
Vulkollan® et Vulkocell® fournissent des solutions d'étanchéité durables pour les applications dynamiques. Leur capacité autolubrifiante et leur capacité de charge les rendent idéales pour les conditions de pression changeantes et les conceptions compactes.
Wipe off materials and media
Le Vulkollan® et le Diepothan® sont parfaits pour les grattoirs et les racleurs. Leur élasticité et leur résistance à l'usure garantissent des processus propres dans les environnements industriels, de la transformation des aliments à la transformation des métaux.
Masses du ressort et emmagasine de l'énergie
Vulkocell® et Diepothan® proposent des éléments de ressort personnalisables pour les systèmes mécaniques qui réduisent les vibrations et stockent l'énergie. Ils permettent d'économiser de l'espace et sont adaptables individuellement, ce qui est idéal pour les conceptions complexes.
Polyurethane elastomers in agricultural industry
Technical components made of polyurethane elastomers are particularly popular in the manufacture of agricultural vehicles and machinery, as they are extremely robust and chemically resistant. They are resistant to moisture and microbes and can withstand the harshest conditions.
Dampen masses & absorb energy
Le Diepocell® est idéal pour amortir de grandes masses. Il peut être utilisé de manière très rentable, en particulier dans la fabrication de machines et d'équipements agricoles. Il fournit des éléments absorbant l'énergie qui fonctionnent de manière fiable même dans des conditions difficiles et prolongent la durée de vie de l'équipement.
Spring masses & store energy
Vulkocell® et Diepothan® proposent des éléments de ressort durables pour la technologie agricole. Ils sont adaptables en termes de dureté et de géométrie, idéaux pour les conditions environnementales changeantes et les conceptions compactes.
Sustainability and environmental aspects
Sustainability is not a trend, but part of our responsibility — even in the production of high-performance polyurethane elastomers. Our solutions not only impress with their technical performance, but also with a resource-saving and future-oriented development approach. The high robustness and long lifespan of our polyurethane elastomers ensure sustainable use in a wide range of applications. Where possible, we use bio-based raw materials and only use REACH and RoHS compliant components and coatings. In addition, a large proportion of the energy used for production comes from alternative sources. Ours EcoVadis certification confirms our commitment to transparency, responsibility and sustainability along the entire value chain.
recycling options
The recycling of polyurethane elastomers is only technically possible to a limited extent. Nevertheless, we are constantly working on innovative solutions to extend the life cycle of our materials. One example of this is Upcycling foam waste, which are reused in other industrial systems. The vast majority of retired elastomers are currently used as a energy recovery supplied — a process in which thermal energy can be recovered and used efficiently.
Energy efficiency in production
The production of polyurethane elastomers is associated with a high energy requirement, as high temperatures are required during processing. Nevertheless, we are able to make our use of energy more and more efficient. With heat exchangers throughout the production process valuable process heat is recovered. At the same time, we cover a large part of our electricity consumption alternatively produced energy. Even the complete conversion to LED technology The lighting of our production facilities contributes to increasing energy efficiency.
conclusion
élastomères de polyuréthane
Are you looking for a durable, adaptable and sustainable material for your application? Then rely on our expertise in P+S polyurethane elastomers.
Contact us — we will be happy to provide you with individual and solution-oriented advice.