Title:
METHOD FOR POST-CURING A PROFILE OF FIBRE-REINFORCED PLASTIC MATERIAL, FIBRE REINFORCED PROFILE AND ITS USE
Document Type and Number:
WIPO Patent Application WO/2019/215241
Kind Code:
A3
Abstract:
The present invention provides a method for post-curing a profile (14) of fibre-reinforced plastic material comprising the steps of: • a supplying the profile, wherein the profile (14) is wound round a winding body (13) and wherein, as a result of the winding in the profile, stresses are present in the profile and said profile comprises a number of fibres extending along one another, which are embedded in a partially cured thermosetting matrix material, • b by means of a heat treatment device, carrying out a heat treatment on the profile (14) while the profile is wound round the winding body (13), and during said heat treatment the matrix material is post-cured, wherein the glass-transition temperature of the matrix material is increased as a result of the heat treatment and wherein the temperature to which the profile is exposed during the heat treatment remains below the glass-transition temperature during the heat treatment, wherein the stresses remain constant and as a result the shape is retained both in cross-section as well as radius of curvature of the profile, at least in the stress-free state, despite the heat treatment and despite winding the profile (14) round the winding body (13) prior to the heat treatment. The present invention also provides a profile manufactured by the method, and use of a profile manufactured by the method.
Inventors:
VAN DIJK MAARTEN LAURENS (NL)
LUCASSEN ROEL (NL)
LUCASSEN ROEL (NL)
Application Number:
PCT/EP2019/061837
Publication Date:
February 13, 2020
Filing Date:
May 08, 2019
Export Citation:
Assignee:
D P P BEHEER B V (NL)
International Classes:
B29C71/02; B29C70/52; B29B15/12
Domestic Patent References:
| WO2015082613A1 | 2015-06-11 |
Foreign References:
| EP0384063A2 | 1990-08-29 | |||
| EP0056689A2 | 1982-07-28 | |||
| DE102017215921A1 | 2019-03-14 | |||
| EP2341239A2 | 2011-07-06 |
Other References:
"Pultrusion process of the bismaleimide resin BMI-QC130", ACTA METALLURGICA SINICA (ENGLISH LETTERS), vol. 26, 1 October 2009 (2009-10-01), College of Materials Science and technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China, pages 20 - 26, XP002793949, ISSN: 1000-3851
MOURITZ A P: "Compression properties of z-pinned sandwich composites", JOURNAL OF MATERIALS SCIENCE, KLUWER ACADEMIC PUBLISHERS, BO, vol. 41, no. 17, 13 May 2006 (2006-05-13), pages 5771 - 5774, XP019399045, ISSN: 1573-4803, DOI: 10.1007/S10853-006-0114-8
MOURITZ A P: "Compression properties of z-pinned sandwich composites", JOURNAL OF MATERIALS SCIENCE, KLUWER ACADEMIC PUBLISHERS, BO, vol. 41, no. 17, 13 May 2006 (2006-05-13), pages 5771 - 5774, XP019399045, ISSN: 1573-4803, DOI: 10.1007/S10853-006-0114-8
Attorney, Agent or Firm:
BOULT WADE TENNANT LLP (GB)
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