1、BRITISH STANDARD BS EN ISO 584:1998 Plastics Unsaturatedpolyester resins Determinationof reactivity at80C (conventional method) The European Standard EN ISO 584:1997 has the status of a British Standard ICS 83.080.10BSEN ISO 584:1998 This British Standard, having been prepared under the directionof
2、the Sector Board for Materials and Chemicals, was published under the authority of the Standards Board and comes into effect on 15 January 1998 BSI 03-1999 ISBN 0 580 28897 8 National foreword This British Standard is the English language version of ENISO584:1997. It is identical with ISO584:1982. T
3、he UK participation in its preparation was entrusted to Technical Committee PRI/42, Fibre reinforced thermosetting plastics and prepegs, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretat
4、ion, 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 on request to its secretary. Cross-references Attention is drawn to the fact
5、that CEN and CENELEC Standards normally include an annex which lists normative references to international publications with their corresponding European publications. The British Standards which implement these international or European publications may be found in the BSI Standards Catalogue under
6、 the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards 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 app
7、lication. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, theEN ISO title page, page 2, the ISO title page, page ii, pages 1 to 3, andaback cover. This standar
8、d has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No. Date CommentsBSEN ISO 584:1998 BSI 03-1999 i Contents Page National foreword Inside front cover Fore
9、word 2 Foreword ii Text of EN ISO584 1ii blankEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO584 November 1997 ICS 83.080.10 Descriptors: See ISO document English version Plastics Unsaturated polyester resins Determination of reactivity at80C (conventional method) (ISO 584:1982) Plastiques
10、Rsines de polyesters non saturs Dtermination conventionnelle de la ractivit 80C (ISO 584:1982) Kunststoffe Ungesttigte Polyesterharze Bestimmung der Reaktivitt bei80C (Herkmmliches Verfahren) (ISO584:1982) This European Standard was approved by CEN on 16 October 1997. CEN members are bound to comply
11、 with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secre
12、tariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the offic
13、ial versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Co
14、mit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1997 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 584:1997 EENISO 584:1997 BSI 03-1999 2 Foreword The text
15、of the International Standard from Technical Committee ISO/TC61 “Plastics” of the International Organization for Standardization (ISO) has been taken over as an European Standard by Technical Committee CEN/TC249 “Plastics”, the secretariat of which is held by IBN. This European Standard shall be giv
16、en the status of a national standard, either by publication of an identical text or by endorsement, at the latest by May1998, and conflicting national standards shall be withdrawn at the latest by May1998. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the
17、 following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of the I
18、nternational Standard ISO584:1982 has been approved by CEN as a European Standard without any modification. Contents Page Foreword 2 0 Introduction 1 1 Scope and field of application 1 2 Principle 1 3 Reagent 1 4 Apparatus 1 5 Procedure 2 6 Test report 2 Figure Example of device for locating the the
19、rmocouple centrally in the test-tube 3EN ISO584:1997 ii BSI 03-1999 Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of developing International Standards is carried out through ISO technical commit
20、tees. Every member body interested in a subject for which a technical committee has been authorized 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. Draft International Standards adopte
21、d by the technical committees are circulated to the member bodies for approval before their acceptance as International Standards by the ISO Council. International Standard ISO584 was developed by Technical Committee ISO/TC61, Plastics, and was circulated to the member bodies in July1980. It has bee
22、n approved by the member bodies of the following countries: The member bodies of the following countries expressed disapproval of the document on technical grounds: Belgium United Kingdom This International Standard cancels and replaces ISO Recommendation R584-1967 of which it constitutes a technica
23、l revision. Descriptors: Plastics, polyester resins, chemical analysis, determination, chemical reactivity. Australia Hungary New Zealand Austria India Poland Canada Iran Romania China Ireland South Africa, Rep. of Czechoslovakia Israel Spain Egypt, Arab Rep. of Italy Sweden Finland Japan USA France
24、 Korea, Rep. of USSR Germany, F.R. NetherlandsENISO584:1997 BSI 03-1999 1 0 Introduction The processing of unsaturated polyester resins depends on their reactivity, i.e., their rate of polymerization in the presence of a catalyst. The evaluation of their reactivity can be carried out by various meth
25、ods. This International Standard is limited to measuring certain characteristics relating to the change in temperature as a function of time of a resin-catalyst mix. Using arbitrarily standardized test conditions, these characteristics allow comparison of similar types of unsaturated polyester resin
26、s. The results obtained in this test are dependent upon the following test conditions: a) quantity and spatial parameters of the test portion examined (test-tube diameter, height of resin in the tube); b) speed of heating the test portion placed in a temperature controlled bath. For example, the rep
27、lacement of water in the bath by another fluid with a lower heat capacity (glycol, oil, etc.) leads to slower heating; c) type of temperature measuring element placed in the test portion and its ability to respond to rapid changes in temperature. Thermometers with a slow response and thermocouples w
28、ith large junctions between the resistance leads are unsatisfactory; d) accurate centring of the thermocouple in the test portion, both in height and in line with the axis. These conditions which are mandatory are specified in the text of this International Standard. 1 Scope and field of application
29、 This International Standard specifies a method for the determination of the reactivity of unsaturated polyester resins as characterized by the maximum temperature reached by a solution of unsaturated polyester resin and catalyst when heated in a water-bath at 80C, by the time taken for the temperat
30、ure of the mixture to rise from 65C to this maximum temperature, and also, if the maximum temperature exceeds 90C, by the time taken for the temperature to rise from 65 to 90C. These characteristics give an indication of the processing behaviour of unsaturated polyester resins and can be used to com
31、pare resins of similar type. As the test results depend very much on the conditions under which the test is carried out, these conditions are described in detail. NOTE 1If the method is used to test commercial benzoyl peroxide catalyst, the results should be compared with those obtained for the same
32、 resin using pure benzoyl peroxide. NOTE 2By agreement between the interested parties, certain test conditions can be modified: such as the test temperature (temperature of the thermostatically controlled bath) and the quantity and type of catalyst system (mixtures of catalysts, combinations of cata
33、lysts and accelerators). 2 Principle Placing of a mixture of 100parts of resin with 1 part of catalyst in a test-tube of defined size. Heating of the test-tube and its contents in a water-bath at80C for the duration of the reaction, and noting (or recording) the rise in temperature with time. 3 Reag
34、ent During the analysis, use only reagents of recognized analytical grade. Benzoyl peroxide, catalyst. WARNING Attention is drawn to the dangers involved in handling pure benzoyl peroxide. A mixture of 50% (m/m) of benzoyl peroxide catalyst in dibutyl phthalate having an active oxygen content betwee
35、n 3,25 and 3,33% (m/m), as measured by known analytical methods. 4 Apparatus 4.1 Water-bath, 1)maintained at 80 0,5C and provided with a thermostat and a circulation pump or stirrer. 4.2 Test-tube, of borosilicate glass or any other glassgiving the same results, of internal diameter181mm, length2105
36、mm and wall thickness1 0,2mm. 4.3 Iron-constantan thermocouple, consisting of wires of 1 0,05mm thickness, with a welded junction of2mm diameter maximum and a meter for measuring temperatures up to250C, graduated in divisions of2C. NOTEIt is desirable to use screened thermocouples that can be positi
37、oned centrally. 4.4 If available a recorder, permitting the readings of temperature on the graph paper to the nearest1C and the time to the nearest15s. 4.5 Device, for locating the thermocouple centrally in the test-tube (see the Figure). 4.6 Balance, accurate to0,01g. 4.7 Stop watch. 1) The water i
38、n the bath may be replaced by another fluid agreed upon by the interested parties.ENISO 584:1997 2 BSI 03-1999 5 Procedure 5.1 Weigh 2 0,01g of the benzoyl peroxide-dibutyl phthalate mixture (clause3) into a glass beaker of capacity250ml and add 100 1g of resin at a temperature between15 and30C. Con
39、tinue stirring for2 to3min. 5.2 Then immediately pour part of the mixture into the test-tube (4.2) to a height of 7 to 8cm. Introduce the thermocouple into the mixture in a position on the axis of the tube and equidistant from the bottom and the surface of the mixture (see the Figure). Then place th
40、e tube in the water-bath at80 0,5C, so that the surface of the resin is well beneath the level of the surface of the water. 5.3 If a recorder is used, start and allow the recorder to run during the complete reaction. Alternatively, note the maximum temperature reached, as well as the time taken for
41、the temperature of the mixture, determined by the thermocouple, to rise from65C to the maximum temperature, and in the case where this temperature is greater than90C, the time to rise from 65 to90C. 5.4 Repeat the test, beginning at5.1, until two consecutive determinations do not differ by more than
42、5C in temperature and10% in time. 6 Test report The test report shall include the following information: a) a reference to this International Standard; b) a complete identification of the resin tested; c) the type of thermocouple used and whether screened or unscreened; d) the individual values of t
43、he maximum temperature reached in the two tests and the average value; e) the individual values of the time taken for the temperature to rise from65C to the maximum temperature in the two tests and the average value; f) if the maximum temperature is above90C, the individual values of the time taken
44、for the temperature to rise from65 to90C in the two tests and the average value; g) if a recorder is used, the graphs giving the temperature plotted against time. h) any deviations from the standard test conditions specified in this International Standard, for example type and temperature of the hea
45、ting medium, catalyst system used, thermocouple system used, etc. (see note 2 to clause1).ENISO584:1997 BSI 03-1999 3 1)The levels for the test mixture and the thermocouple shall be in accordance with the instructions in5.2. Figure Example of device for locating the thermocouple centrally in the tes
46、t-tubeBS EN ISO 584:1998 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisi
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