摘要:
The invention relates to a sandwich material comprising at least 3 layers, the layers being a first cover layer, an intermediate layer and a second cover layer. The intermediate layer is in the form of at least one segmented sheet and comprises a mixture of at least one polymer and cellulose fibres. Sheets may comprise susceptors. Processes for manufacturing the sandwich material are also described.
摘要:
This invention concerns motion-controlled, layered mechano-active materials comprising at least one first fiber-based layer and at least one second layer capable of releasing or inducing tension, whereby the extension of the material is anisotropically controllable by heat and/or moisture. The motion control may be exterted by moisture or heat, e.g. by an electrical current. Products of the invention may be used for packaging or display purposes.
摘要:
The present invention is a method for manufacturing a composite material having reduced mechanosorptive creep comprising the following steps: a) mixing fibers of a lignocellulosic material with a thermoplastic material where the thermoplastic material is in fiber form, b) adding the mixture made in step a) onto a wet web, thus forming a composite material and c) hot pressing of the composite material. The present invention also provides a composite material having reduced mechanosorptive creep being the manufacturing result of the method. The present invention also comprises the use of the method and the composite material.