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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS ISO 15034:1999 ICS 83.
2、120 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Composites Prepregs Determination of resin flow Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 08:11:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI This British Standard, having been prepared under the direction of the
3、 Sector Committee for Materials and Chemicals, was published under the authority of the Standards Committee and comes into effect on 15 June 2000 BSI 06-2000 ISBN 0 580 34241 7 BS ISO 15034:1999 Amendments issued since publication Amd. No.DateComments National foreword This British Standard reproduc
4、es verbatim ISO 15034:1999 and implements it as the UK national standard. The UK participation in its preparation was entrusted to Technical Committee PRI/42, Fibre reinforced thermosetting plastics and prepregs, which has the responsibility to: aid enquirers to understand the text; present to the r
5、esponsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained o
6、n request to its secretary. Cross-references The British Standards which implement international publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled International Standards Correspondence Index, or by using the Find facility of the BSI Sta
7、ndards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of p
8、ages This document comprises a front cover, an inside front cover, the ISO title page, pages ii to iv, pages 1 to 4, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Licensed Copy: sheffieldun sheffieldun, na, Mon
9、 Nov 27 08:11:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Reference number ISO 15034:1999(E) INTERNATIONAL STANDARD ISO 15034 First edition 1999-12-15 Composites Prepregs Determination of resin flow Composites Primprgns Dtermination de lcoulement de rsine Licensed Copy: sheffieldun sheffieldun, na
10、, Mon Nov 27 08:11:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 15034:1999(E) ii? Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 08:11:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 15034:1999(E) ?iii Contents?Page Foreword.iv 1?Scope 1 2?Normative references1 3?Terms and definitions
11、 .1 4?Principle1 5?Apparatus.1 6?Preparation of test specimens .2 7?Conditioning and test atmospheres 2 8?Procedure.2 9?Expression of results 3 10?Precision.4 11?Test report4 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 08:11:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 15034:1999(E)
12、iv? 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 committees. Each member body interested in a subject for which
13、 a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all mat
14、ters 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 International Standa
15、rd 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 International Standard may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Internationa
16、l Standard ISO 15034 was prepared by Technical Committee ISO/TC 61,Plastics, Subcommittee SC 13,Composites and reinforcement fibres. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 08:11:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI INTERNATIONAL STANDARD?ISO 15034:1999(E) ?1 Composites Prepr
17、egs Determination of resin flow 1?Scope This International Standard specifies a procedure for the determination of the resin flow of prepregs made of continuous reinforcement impregnated with epoxy and/or unsaturated-polyester resin. 2?Normative references The following normative documents contain p
18、rovisions which, through reference in this text, constitute provisions of this International Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this International Standard are encouraged to invest
19、igate the possibility of applying the most recent editions 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 291:1997,Plastics
20、 Standard atmospheres for conditioning and testing. ISO 472:1999,Plastics Vocabulary. ISO 8604:1988,Plastics Prepregs Definitions of terms and symbols for designations. ISO 9782:1993,Plastics Reinforced moulding compounds and prepregs Determination of apparent volatile- matter content. 3?Terms and d
21、efinitions For the purposes of this International Standard, the terms and definitions given in ISO 472 and ISO 8604 apply. 4Principle A test specimen is cut from a prepreg sample and placed between bleeder cloth and release film. This assembly is cured at the test temperature and pressure in a hot p
22、ress. After curing, any resin which flowed beyond the original dimensions of the test specimen is removed. The resin flow is calculated as the percent difference between the mass of the test specimen before and after curing. 5?Apparatus 5.1?Cutting template, made of metal or ceramic material, measur
23、ing (100 ? 1) mm by (100 ? 1) mm and about 5 mm thick. Hard metals such as steel are recommended. 5.2?Knife, single-edge. 5.3?Analytical balance, capable of weighing to the nearest 1 mg. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 08:11:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 15
24、034:1999(E) 2? 5.4?Glass bleeder cloth, 181 style or equivalent. 5.5?Release film (perforated), heat-resistant, for example polytetrafluoroethylene, with suitable perforations through which the resin can flow out. 5.6?Releasefilm(unperforated),heat-resistant,forexampleacopolymeroftetrafluoroethylene
25、and hexafluoroethylene (FEP). 5.7?Heated platen press, capable of raising the temperature to 200 C and maintaining the pressure at up to 600 kPa over a 100 mm by 100 mm area. 6?Preparation of test specimens 6.1?A minimum of three specimens shall be tested from each sample. 6.2?Using the template, ca
26、refully cut pieces measuring 100 mm by 100 mm from the prepreg sample. Cut the pieces out across the width of the prepreg. Cut out sufficient pieces so that, when they are placed one on top of the other, they will give specimens 0,2 mm to 0,5 mm thick. If the necessary number of pieces cannot be cut
27、 out in the width direction (as with narrow tape, for example), they may be cut out in the longitudinal direction. The edges and selvedges of the prepreg shall not be included in any of the pieces. 6.3?In the case of unidirectional prepregs, lay up the plies with alternating plies perpendicular to e
28、ach other. Using two or four plies for each specimen is recommended. If the recommended number of plies does not give a thickness in the required range, a different number of plies may be used, but this shall be noted in the test report. 7?Conditioning and test atmospheres 7.1? Conditioning Prepregs
29、 are usually stored at a low temperature, such as 18 C. Before opening a sealed package of prepregs, allow it to warm up to the point where no condensation takes place on the outside of the package. Ensure that the prepregs do not absorb moisture from the atmosphere. 7.2? Test atmosphere Prepare the
30、 specimens and carry out the test in a room in which the atmosphere is one of the standard atmospheres defined in ISO 291, unless otherwise specified. If the press is installed in an insufficiently conditioned atmosphere, the time during which the specimen is exposed to this atmosphere shall be kept
31、 as short as possible. 8?Procedure 8.1?Weigh a test specimen to the nearest 1 mg and record the mass as m1. 8.2?Cut out two pieces of perforated release film about 150 mm by 150 mm square. 8.3?Cut out six pieces of bleeder cloth about 150 mm by 150 mm square. 8.4?Cut out two pieces of unperforated r
32、elease film about 150 mm by 150 mm square. 8.5?Prepare the test specimen assembly as shown in Figure 1. 8.6?Insert the specimen assembly into the press preheated to the prescribed cure temperature ? 3 C, and immediately apply a uniform pressure of 400 kPa to 600 kPa (the pressure shall rise to the s
33、pecified value within 5 s of insertion of the assembly). Hold the pressure until the degree of cure is sufficient to allow the cured resin to be handled. The cure conditions shall be determined by agreement between the user and supplier of the prepreg. Licensed Copy: sheffieldun sheffieldun, na, Mon
34、 Nov 27 08:11:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 15034:1999(E) ?3 Key 1?Test specimen 2Work surface 3?Unperforated release film 4?Glass bleeder cloth (three plies) 5?Perforated release film a)?Place a piece of unperforated release film on the work surface. b)?Lay three pieces of bleed
35、er cloth on the release film as shown. c)?Place a piece of perforated release film on the bleeder cloth as shown. d)?Place the test specimen on the perforated release film, centered, and with its edges parallel to the edges of the release film. e)?Cover the specimen with another piece of perforated
36、release film, three pieces of bleeder cloth and a piece of unperforated release film. All edges shall be aligned with the other set of films and cloth. Figure 1 Test specimen assembly 8.7?Remove the test specimen assembly from the press and allow to cool. Separate the unperforated release film, blee
37、der cloth and perforated release film from the specimen. Remove any cured resin which flowed beyond the dimensions of the original uncured test specimen. 8.8?Reweigh the test specimen to the nearest 1 mg and record the mass as m2. 8.9?Repeat the procedure in 8.1 to 8.8 with the remaining specimens (
38、giving a total of at least three results). 9?Expression of results 9.1?Calculate the resin flow Fr1, in percent, using the following equation: F mm m r1? ? ? 12 1 100 where m1is the mass, in grams, of the test specimen before curing; m2is the mass, in grams, of the test specimen after curing. 9.2?Fo
39、r prepregs with volatile ingredients in the original composition, calculate the resin flowFr2, in percent, using the following equation: Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 08:11:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 15034:1999(E) 4? F mm m r2 VC /100) VC /100) ? ? ? ?
40、 12 1 1 1 100 ( ( where VC is the volatile-matter content, in percent, determined in accordance with ISO 9782. 10 Precision The precision of this method is not known because interlaboratory data are not available. When interlaboratory data are obtained, a precision statement will be added at the fol
41、lowing revision. 11 Test report The test report shall include the following information: a)?a reference to this International Standard; b)?all details necessary for complete identification of the sample tested; c)?the number of plies used to lay up the specimen; d)?the cure conditions used, for exam
42、ple the cure temperature, pressure and time; e)?the test result obtained for each of the three specimens, and the average value; f)?in cases when Fr2is reported, the temperature at which the volatile-matter content was determined; g)?the type of glass bleeder cloth used; h)?the types of perforated a
43、nd unperforated release film used; i)?the date of the test. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 08:11:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 08:11:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 15034:1999 BSI 389
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