ISO-1268-3-2000.pdf
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1、INTERNATIONAL STANDARD ISO 1268-3 First edition 2000-11-01 Reference number ISO 1268-3:2000(E) ISO 2000 Fibre-reinforced plastics Methods of producing test plates Part 3: Wet compression moulding Plastiques renforcs de fibres Mthodes de fabrication des plaques dessai Partie 3: Moulage par compressio
2、n voie humide ISO 1268-3:2000(E) ii ISO 2000 All rights reserved PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed o
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5、inform the Central Secretariat at the address given below. ISO 2000 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, elec- tronic or mechanical, including photocopying and microfilm, without permission in writing
6、from either ISO at the address below or ISOs mem- ber body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.ch Web www.iso.ch Printed in Switzerland -,-,- ISO 1268-3:2000(E) ISO 2000 All rights re
7、served iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical com- mittees. Each member body interested in a subject
8、for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liai- son with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC)
9、 on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an Internati
10、onal Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this part of ISO 1268 may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Interna
11、tional Standard ISO 1268-3 was prepared by Technical Committee ISO/TC 61,Plastics, Subcommittee SC 13,Composites and reinforcement fibres. Together with the other parts (see below), this part of ISO 1268 cancels and replaces ISO 1268:1974, which has been technically revised. ISO 1268 consists of the
12、 following parts, under the general titleFibre-reinforced plastics Methods of producing test plates: Part 1: General conditions Part 2: Contact and spray-up moulding Part 3: Wet compression moulding Part 4: Moulding of prepregs Part 5: Filament winding Part 6: Pultrusion moulding Part 7: Resin trans
13、fer moulding Part 9: Moulding of glass mat thermoplastics (GMT) Part 8: Compression moulding of SMC, BMC and DMC, is in preparation. -,-,- -,-,- INTERNATIONAL STANDARDISO 1268-3:2000(E) ISO 2000 All rights reserved 1 Fibre-reinforced plastics Methods of producing test plates Part 3: Wet compression
14、moulding 1Scope This part of ISO 1268 specifies a method of making test plates by wet compression moulding. Using this method, test plates can be made in a reproducible manner, making it possible to compare the results of tests carried out at differ- ent times and/or in different places. Test specim
15、ens cut from plates made by wet compression moulding are useful in characterizing the reinforcement used. The reinforcement can be either mats or fabrics. The following properties of these materials are of particular interest: water absorption (ISO 62); flexural strength and flexural modulus (ISO 17
16、8); impact strength (Charpy) (ISO 179); tensile strength, tensile modulus and elongation at break (ISO 527-4). This part of ISO 1268 is intended to be used in conjunction with ISO 1268-1. 2Normative references The following normative documents contain provisions which, through reference in this text
17、, constitute provisions of this part of ISO 1268. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part of ISO 1268 are encouraged to investigate the possi- bility of applying the most recent edition
18、s of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO 1172:1996,Textile-glass-reinforced plastics Prepregs, moulding compounds a
19、nd laminates Determination of the textile-glass and mineral-filler content Calcination methods. ISO 1183 (all parts),Plastics Methods for determining the density and relative density of non-cellular plastics. ISO 1268-1,Fibre-reinforced plastics Methods of producing test plates Part 1: General condi
20、tions. ISO 2555,Plastics Resins in the liquid state or as emulsions or dispersions Determination of apparent viscosity by the Brookfield Test method. 3Health and safety See ISO 1268-1. -,-,- ISO 1268-3:2000(E) 2 ISO 2000 All rights reserved 4Principle To make plates by wet compression moulding, a pr
21、ess is used with two flat mould plates. The lower plate is fixed and the upper plate can be pressed on to it. Reinforcement materials like mats or fabrics are placed on the lower plate and a sufficient amount of a suitable resin system is poured on top of the reinforcement. The upper plate is then p
22、ressed on to the lower plate. As a result, the resin system flows through the reinforcement. The distance between the plates can be adjusted by means of spaces, thus enabling the relative amounts of reinforcement and resin sys- tem to be varied. The plates can be either at ambient temperature or at
23、a higher temperature, the temperature deter- mining the time for the resin system to cure. 5Materials 5.1Reinforcement The reinforcements shall be in the form of flat sheets that can be trimmed to the required size. In wet compression moulding, textile glass is usually used as the reinforcement. It
24、is very important that the layers are sufficiently strong to withstand the resin flow during compression. This means that the reinforcement must be relatively insoluble in the resin system. 5.2Resin An unsaturated polyester (UP) resin is normally used. It is essential that the viscosity is sufficien
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