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Método sándwich: procesamiento de residuos de plástico reciclados o bioplásticos

Resumen

Tipo:
Oferta Tecnológica
Referencia:
TODE20160719001
Publicado:
08/08/2016
Caducidad:
08/08/2017
Resumen:
Una pequeña empresa alemana de ingeniería ha desarrollado módulos para modernizar máquinas de moldeo por inyección que permitan fabricar componentes de plástico con nuevas propiedades y utilizar nuevos tipos de materiales, por ejemplo, procesando plásticos reciclados o bioplásticos mediante moldeo por sándwich-inyección. Las ventajas ofrecidas incluyen ahorro de costes y materiales, reducción del peso mediante el uso de polímeros expandidos, aumento de la resistencia mediante el uso de polímeros reforzados con fibra y efectos de color gracias a la utilización de polímeros de diferentes colores. La empresa busca socios industriales y centros de investigación con el fin de establecer acuerdos de cooperación y comercialización con asistencia técnica.


Details

Tittle:
Sandwich method - processing of recycled waste plastics or of bio-based "Green" plastics
Summary:
A small German engineering company has developed modules to retrofit a broad range of injection moulding machines to enable the production of plastic parts with new properties and/or the usage of new types of materials e.g. by processing recycled plastics or bio-based plastics, based on using sandwich-injection moulding. The Industrial partners and research institutions are searched for technical cooperation agreement and/or commercial agreement with technical assistance.
Description:
The small German engineering company is developing
supplementary modules for injection moulding machines and offering support to exploit them with the matching technologies, the matching materials and the matching product structures. It offers modules to retrofit a broad range of single- and multi-component injection moulding machines to enable sandwich-injection moulding processes.
With sandwich-injection moulding (also called co-injection), plastic parts with extended properties and advantages can be produced, i.e.
· material cost savings with regrind as core material,
· weight reduction by using foamed polymers in the core,
· increase in strength by fibre reinforced polymers,
· colour effects by different coloured polymers.
In one single process two different plastic materials are injected successively (and also shot time simultaneously) into the injection mould as skin material and core material.
The different characteristics of the skin and the core material and their combination provide a broad variety of features of the resulting multi-functional mouldings.
One outstanding possibility of sandwich-injection moulding is the possibility to utilize plastics after use (waste plastics) not only thermally (burning) but as a core material again.
Depending on the part geometry and the type of plastic, more than 50% of waste plastics can be processed. A specificity of the method is that the core layer is completely enclosed by (new) skin material. Experiences show that changes in the molding properties are expected only in a very small scale.
As well, to save the scarce and expensive resource of oil, increasingly so-called "Green" - or even "organic" - plastics are used for the production of various moldings.
These plastics are based on renewable resources.
A processing of these plastics in the sandwich method is possible, too.

Sandwich-injection moulding is currently not widespread because it is commonly connected to 2-component machines, which are by 1,2-times to 1,6-times more expensive than standard machines and the moulds must have a cold runner in the most cases.
The developed solution consists of a variety of add-on modules like 2-component sandwich nozzles and intermediate plates and their selection/design as well as of the provided knowhow of the company to select the raw materials and to configure the moulding process to reach the desired product features.

The SME is searching for industrial partners and research institutions for technical cooperation agreement or commercial agreement with technical assistance to implement the modules jointly and to share their knowhow regarding the development and production of sandwich-injection moulded parts.
The searched partners should be active in the area of plastic parts production, the production of moulding machines or components.
The actual type of the agreement depends on the type and the needs of the partner for support.
Advantages and Innovations:
The developed solution opens the way for almost all standard and multicomponent injection moulding machines to execute sandwich-injection moulding processes with very low material efforts for the upgrade.
This enables
· plastic parts production in a very cost saving and
environmentally friendly way regarding material consumption
(i.e. regrind resp. Green plastics as core material),
· weight reduction of the parts by using foamed polymers in
the core,
· increase in strength by fibre reinforced polymers,
· colour effects by different coloured polymers.

Depending on the type of the parts other effects, basing on possible new product features, are expected.
Stage of Development:
Already on the market
IPs:
Secret Know-how

Partner sought

Type and Role of Partner Sought:
Industrial partners, producing plastic parts by injection moulding, are sought for upgrading their machines, joint development of sandwich-injection moulded parts.

Industrial partners, producing injection moulding machines or core parts (tools) are sought for upgrading their portfolio and retrofit their customer´s machines.

Research partners, developing new injection moulding technologies respectively parts, are sought for qualifying their technologies/parts.

Industrial or research partners considering the usage of waste plastics or Green plastics are sought for upgrading their portfolio and retrofit their customer´s machines.

The type of cooperation depends on the R-Y-D-level of the partner and on the necessary R-Y-D-involvement of the SME.

Client

Type and Size of Client:
Industry SME <= 10
Already Engaged in Trans-National Cooperation:
Si
Languages Spoken:
English
German

Keywords

Technology Keywords:
02002009 Machine Tools
02002013 Moulding, injection moulding, sintering
02007014 Plastics, Polymers