Hybrid component with a local reinforcement made of a two stage crosslinked composite material based on polyurethane fibre

A component and fiber technology that is used in the production of hybrid components and can solve the problems of maintaining cross-linked state and not having the required metal adhesion

Inactive Publication Date: 2017-03-15
EVONIK OPERATIONS GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However these prepregs are not intended for use in hybrid components and due to their specific formulation do not have the required metal adhesion to remain in the intended position in a partially cross-linked state

Method used

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  • Hybrid component with a local reinforcement made of a two stage crosslinked composite material based on polyurethane fibre
  • Hybrid component with a local reinforcement made of a two stage crosslinked composite material based on polyurethane fibre
  • Hybrid component with a local reinforcement made of a two stage crosslinked composite material based on polyurethane fibre

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Embodiment

[0117] The present invention will now be explained with reference to examples.

[0118] Torayca FT 300 3K 200tex carbon fiber was processed in all experiments. The fiber is in the form of a twill weave sheet fabric structure Typ Style e452 manufactured by Engineered Cramer Composites (ECC). Basis weight is 200g / m 2 .

[0119] A metal body in the form of a miniature B-pillar supplied by Benteler Automobiltechnik is used. The metal body is made of hot-formed steel (22MnB5 alloy) / easily formable aluminum alloy.

[0120] In Comparative Example 0 which is not the present invention, the reactive polyurethane composition produced according to Example 2 of US2014087613A1 was selected. The formulation is reported in Table 0. Since the binder does not contain polar functional groups selected from ester functional groups, carbonate functional groups, amide functional groups, carbamate functional groups, urea functional groups, thioester functional groups or thiocarbonate functional groups, ...

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Abstract

The invention relates to a hybrid component part comprising a local stiffening made of a two-stage-crosslinked polyurethane-based fibre composite material, more particularly to the production of such a hybrid component part. Said invention has for its object to specify a technology which makes it possible in cost-effective fashion to effect local stiffening of metal parts with a fibre composite material in order thus to obtain a hybrid component part. It is a fundamental concept of the process according to the present invention to use a particular polyurethane formulation which in a first crosslinking reaction can be converted into a thermoplastic polymer and later in a second crosslinking reaction is fully crosslinked to afford a thermoset matrix material. The thermoplastic polymer is characterized by a good adhesion to metal surfaces. The metal can be subjected to further forming with the attached thermoplastic material. The polyurethane is subsequently thermosettingly cured and achieves its final stiffness.

Description

Technical field [0001] The present invention relates to hybrid component parts including partial reinforcement made of fiber composite materials based on two-stage crosslinked polyurethane; more specifically, the invention relates to the production of such hybrid component parts. Background technique [0002] The term hybrid component should be understood to mean the component parts of a machine, land-craft, aircraft, spacecraft or ship, device, equipment or appliance constructed from different indivisible interconnected materials. The hybrid component basically satisfies the mechanical function normally used as a load-bearing structural component, but it can be further endowed with non-mechanical functions, such as electrical, thermal, acoustic or optical functions. To this end, the materials used are not only utilized mechanically, but also, for example, due to their optical and / or electrical properties. [0003] Hybrid components combine chemically very different materials in o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B37/12C08G18/79B32B37/10B32B37/06B32B15/14B32B15/04B32B5/02C09J175/06C09J175/08
CPCB29C70/02B29C70/028B32B15/095B29K2105/0872B29L2031/3002C08J5/249C08J5/248B32B5/02B32B15/04B32B15/14B32B37/06B32B37/10B32B37/12C08G18/798C09J175/06C09J175/08B29C70/86B29C35/02C08G59/42C08G18/42C08L75/04B29K2105/243B29C2791/001C08J2375/06C08G59/4028C08L63/00B29C70/64B29C70/887C08G18/7825C08J5/04C08J5/06B29K2105/16B29K2303/06B29C65/02B29C65/48B29L2031/731
Inventor C·迪尔M-E·施密特T·古特曼U·斯塔佩尔芬内S·雷默斯L·伊克尔特
Owner EVONIK OPERATIONS GMBH
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