After the explosion of developments in polymer formulations over the last year, it is worth taking a closer look during Fakuma at details such as functional additives or application-specific modifications. Overall, lightweight design continues to spur development but defined surface characteristics are also in demand. The reported innovations do not just follow current consumer trends but also provide ideas for advanced product and process developments. 

Functional Modifications Characterize Developments in Additives and Compounds 

Hochleistungskunststoffe

Polyamide

Polypropylen

Compound

Verbundwerkstoffe / Werkstoffverbunde

Additive

Farbstoffe

Pigmente

Füllstoffe für Kunststoffe

Additive Fertigung

Oberflächentechnik

Medizintechnik

Compoundeure

Distribuenten

Polymers Can Be Expected Everywhere 

Styrenics Circular Solutions (SCS), the value chain initiative to increase the circularity of styrenic polymers, today announced that CEDAP, Compagnie Européenne Des Applications Plastiques, joins the organisation.

Polystyrol

Kunststoff Werkstoffe

Thermoplaste

Verbände, Institutionen, Messen

Dienstleistungen

Standardkunststoffe

ABS / ASA-Kunststoffe

Polystyrol-Platten

Halbzeuge und Zwischenprodukte

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Polypropylen-Compound

Kunststoffhandel

Handel

CEDAPJoins Styrenics Circular Solution

The Danish company Plastix recycles old fishing nets and ropes. The granules produced are used by JSP International, among others, to manufacture expanded polypropylene (EPP).

Expanded Polypropylene from Maritime Plastic Waste

Schaumstoffe und Vorprodukte

Schaumstoffe

Kunststoff-Aufbereitung

Kunststoffverarbeitung: Verfahren

Recycling

Umweltmanagement

Kunststoff

Bauwesen

Baustoffe

Kunststoff-Recycling

Kunststoff-Rezyklat

From Fishing Net to Particle Foam

Weight reduction is one of the major requirements of automotive components. Regardless of the vehicles in which they are used. One of the lightest materials that can be considered is polypropylene (PP).

PP Compounds for Automotive Lightweight Construction

Automotive

Elektronik

Elektromobilität

Mobilität

Easier to Reach the Destination

Higher mechanical properties with lower density make polypropylene an interesting alternative to polyethylene for a large number of applications. New catalysts and production processes offer a wider range of products. Monolayer films and recycling are under development. In the meantime, China consumes almost one-third of the PP produced worldwide.

Growth through Sustainability and Technical Specialization

Polypropylen-Platten

Verpackungsmaterial

Logistik

Polypropylene (PP)

Milliken PP additive for thermoforming uses cleaner chemistry to deliver brighter look.

Warmformen / Thermoformen

Kunststoffverarbeitung: Maschinen und Komponenten

New PP Additive for Thermoforming Food-Contact Applications

Milliken & Company will be showcasing its product portfolio of polymer additives and colorant capabilities at booth 01/A22 at Interplastica 2022 in Russia.

Polymer Additive Solutions

For hard-soft combination with liquid silicone, polyolefins are a lower-cost alternative to engineering thermoplastics as carrier materials. To achieve a satisfactory bond between silicone and polyolefin, a multilayer film was trialed as an adhesion promoter. The material bond is produced directly during the injection molding cycle using an in-mold decoration film, so saving time and money. 

Polyolefins Modified for Use as Carrier Materials in Thermoplastic-Liquid Silicone Rubber Combination by In-Mold Decoration  

Polyethylen

Silikone

Folien

An Incompatible Pair Stick Together 

The first series application of the lightweight material microsandwich in 2018 will reduce the weight of vehicle interior trim components by up to 50 %. The efficient one-shot process on existing manufacturing systems offers cost-effective component production by virtue of its short cycle times, as illustrated by the example of a door pocket. 

Microsandwich Made from a Fiber-Reinforced PP Nonwoven and a PET Foam Core for  Vehicle Interior Trim Components 

Polyethylenterephthalat

Hybridtechnik

Fasern

Lean Material Mix for Lightweight Interiors 

Induction as contactless heating technology is also attractive for composite materials. The efficiency of the technology has so far been limited by the resulting complex temperature distribution. Therefore, it is necessary to fundamentally investigate the influences of the laminate parameters on the induction heating behavior of CFRP. 

Influences of Laminate Parameters on the Induction Heating Behavior of CFRP 

Heizung

Kohlenstofffasern / -matten

Faserverarbeitung

Industrieroboter

Induction Heating of CF-Reinforced Polymers 

Thanks to its structure, customizable content of glass fibers and low density, a highly crystalline polypropylene compound possesses properties which allow it to act as a substitute for engineering polymers such as polyamide and PBT. Its performance at elevated temperatures opens up scope for using this commodity polymer in automotive applications that were hitherto the preserve of engineering polymers. It also makes for lighter parts. 

Polypropylene: PP Compound with New Properties 

A new glassfiber-reinforced polypropylene is on the verge of raising the bars to unprecedented heights in the areas of savings in production costs and environmental balance for vehicle intake manifolds. Its market potential is enormous, as is the challenge posed to the material, which is infringing polyamides’ long-standing domain. First serial applications are manifolds for fuel engines in Volkswagen vehicles. 

Intake Manifold: Light, Inexpensive, and Good for the Environment 

For communication in the future, dielectric mirrors made of custom-formulated polymer-based compounds could provide a key function. Their task would be to reflect THz waves for indoor data transmission. 

Titan

Modified Materials: Mirrors for Electromagnetic Waves 

Since a short time ago, BASF SE, Ludwigshafen, Germany, has been offering a new and patented type of Neopolen P foam (EPP: expanded polypropylene) for equipment used in heating, ventilation and plumbing applications. The metallic gray Neopolen P 9335 mg exhibits up to 10 % better thermal insulating characteristics than standard EPP. Because of the versatile characteristics of this new product, foamed Neopolen P molded parts can fulfill several functions simultaneously: This foam can serve as an efficient, impact-absorbing packaging material for shipping, be designed for use as an equipment carrier and even replace the actual metal housing, since it can be processed into a thermally insulating enclosure with anesthetic surface. The newly developed EPP foam thus helps to comply with the energy standards for low-energy residential housing construction and building renovation. 

Thermal Insulation in Designer Clothing 

Neopolen P 9335 mg 

Highly specialized polyolefins meet the high requirements for the healthcare market. Close collaboration between polymer producer and distributor provides an exceptional service for processors in terms of supply flexibility, formulation consistency and individual on-site consulting, which forms the basis for attractive, long-term successful projects. 

Healthcare Sector: Safety, Innovation, Service 

Modification of a polypropylene matrix by the use of hollow glass microspheres

To ensure better stability of expanded polystyrene insulation panels on the house wall, they are fastened with an additional polypropylene (PP) anchor. However, the fact that two different materials are used results in thermal bridges due to different thermal conductivities (TC), which can be seen visually as the formation of mold and algae, but also cause energy losses. The motivation for this work was to adjust the WLF of the two materials by using a filler, but not to negatively influence the mechanical strength of the anchor.

In the search for a suitable filler to reduce the TC, micro hollow glass spheres (MHGS) emerged as suitable candidates. MHGS, as the only inorganic filler, exhibit a lower TC than PP. In addition, they have a lower density and dielectric constant. The use of 50 vol.-% MHGK (33 wt.%) thus resulted in a reduction of 20% in thermal conductivity, 24% in density and 17% in dielectric constant.

However, the disadvantage of using MHGS was that, as a spherical filler, it reduced the mechanical properties of the matrix. The target approach was therefore to obtain a stable chemical bond between the two components by means of an adapted functionalization in order to counteract the mechanical losses. This could be achieved by a combination of using the adhesion promoter maleic anhydride-grafted polypropylene and silanizing the MHGS with an amino silane.

Plastic Composites, MHGS-PP Compound, Micro hollow glass spheres, Filler, Polypropylene, Plastics, Thermoplastic, Inorganic filler, Thermal Conductivity, Mechanical properties

Dissertation Laura Schwinger.pdf

20211206 Dissertation Laura Schwinger

issue 09/2021

issue 08/2021

issue 07/2021

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