1、BRITISH STANDARD BS ISO 8605:2001 Textile-glass-reinforced plastics Sheet moulding compound (SMC) Basis for specification ICS 59.100.10 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS ISO 8605:2001 This British Standard, having been prepared under the direction of the Sector
2、 Committee for Materials and Chemicals, was published under the authority of the Standards Committee and comes into effect on 15 August 2001 BSI 07-2001 ISBN 0 580 38206 0 National foreword This British Standard reproduces verbatim ISO 8605:2001 and implements it as the UK national standard. The UK
3、participation in its preparation was entrusted to Technical Committee PRI/42, Fibre reinforced thermosetting plastics and prepregs, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standar
4、ds which implement international or European 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 Standards Electronic Catalogue. A British Standard
5、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. aid enquirers to understand the text; present to the respons
6、ible 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. Summary of pages This document comprises a front cover, an inside front cover
7、, the ISO title page, pages ii to iv, pages 1 to 9 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsReference number ISO 8605:2001(E) INTERNATIONAL STANDARD ISO 8605 Second editi
8、on 2001-06-01 Textile-glass-reinforced plastics Sheet moulding compound (SMC) Basis for a specification Plastiques renforcs au verre textile Mats primprgns SMC Base de spcificationISO 8605:2001(E) DPF dlcsiremia ihTs PDF file mya ctnoain emdeddeb tyfepcaes. In acccnadroe with Aebods licnesign lopic,
9、y this file may be pirntde ro ivwede tub slahl ton eb ideted lnuess teh tyfepacse which aer emdeddeb era licnesed to dna intslaled on teh computre freporming teh idetign. In wodlnidaogn this f,eli trapies accept tniereh teh sersnoptilibiy of ton nifrgnigni Asebod licsnegni ilopcy. ehT ISO tneClar Se
10、cteraairt accepts no lilibaity ni this .aera Aebod is a tedarmakr fo Aebod Stsyems Icntaropro.de teDails fo the sfotwera pcudorts sude to crtaee tihs PFD file can be fdnuo in the Glarene Info leratiev to the fil;e the Pc-FDaertion arapmteres were tpoimizde for pirtning. Evyre cera sah neeb taken to
11、enseru taht teh file is suitlbae fro sue by ISO memreb idob.se In teh lnuikley etnev ttah a plborem leratign to it is f,dnuo lpsaee ifnrom teh tneClar Sceterairat at the sserdda givne lebwo. ISO 1002 All rhgits rsevre.de elnUss towrehise scepfidei, on trap of tihs cilbuptanoi mya eb cudorperde ro ut
12、zilide ni yna form ro yb yna snaem, eelctinorc ro mecinahcal, inclidugn tohpociypong dna micrfoilm, wittuoh repmissino in writing form eitreh ISO at teh erddass lebwo ro ISOs memreb ydob in the ctnuoyr of the rtseuqee.r ISO cirypothg fofice saCe tsopale 65 1121-HC aveneG 20 leT. + 41 22 947 10 11 xa
13、F + 14 22 947 90 74 E-mail cirypothgiso.ch eWb www.iso.ch ii ISO 1002 All irhgts seredevrISO 8605:2001(E) ISO 1002 All rights rsedevre iii Contents Page Foreword.iv 1 Scope 1 2 Normative references 1 3 Term and definition .3 4 Classification of SMC 3 5 Properties .6 6 Sampling.8 7 Shelf life 8 8 Pac
14、king, packaging and labelling 8ISO 8605:2001(E) iv ISO 1002 All rights rsedevre 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
15、ISO technical committees. Each member body interested in a subject for which 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
16、 closely with the International Electrotechnical Commission (IEC) 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 circul
17、ated to the member bodies for voting. Publication as an International 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 International Standard may be the subject of patent rights. ISO shall not be
18、held responsible for identifying any or all such patent rights. International Standard ISO 8605 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 13, Composites and reinforcement fibres. This second edition cancels and replaces the first edition (ISO 8605:1989), in which the l
19、ists of methods for determining the properties of SMC have been revised.INTERNATIONAL STANDARD ISO 8605:2001(E) ISO 1002 All rights rsedevre 1 Textile-glass-reinforced plastics Sheet moulding compound (SMC) Basis for a specification 1 Scope This International Standard establishes a basis for a speci
20、fication for sheet moulding compound (SMC) used in the production of composite parts by hot moulding. It applies only to sheet moulding compound having glass fibres as the sole or main reinforcement. It should be noted that the term sheet moulding compound covers products which can be complex mixtur
21、es and which may differ from the definition of “mat”g i v e ni nI S O4 72. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Standard. For dated references, subsequent amendments to, or revis
22、ions of, any of these publications do not apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normat
23、ive document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO 62:1999, Plastics Determination of water absorption. ISO 75-2: 1) , Plastics Determination of temperature of deflection under load Part 2: Plastics and ebonite. ISO 179-1:2000,
24、 Plastics Determination of Charpy impact properties Part 1: Non-instrumented impact test. ISO 179-2:1997, Plastics Determination of Charpy impact properties Part 2: Instrumented impact test. ISO 180:2000, Plastics Determination of Izod impact strength. ISO 291:1997, Plastics Standard atmospheres for
25、 conditioning and testing. ISO 472:1999, Plastics Vocabulary. ISO 527-4:1997, Plastics Determination of tensile properties Part 4: Test conditions for isotropic and orthotropic fibre-reinforced plastic composites. ISO 1172:1996, Textile-glass-reinforced plastics Prepregs, moulding compounds and lami
26、nates Determination of the textile-glass and mineral-filler content Calcination methods. ISO 1183-1: 2) , Plastics Methods for determining the density of non-cellular plastics Part 1: Immersion method, liquid pyknometer method and titration method. 1) To be published. (Revision of ISO 75-2:1993) 2)
27、To be published. (Revision, in parts, of ISO 1183:1987)ISO 8605:2001(E) 2 ISO 1002 All rights rsedevre ISO 1183-2: 3) , Plastics Methods for determining the density of non-cellular plastics Part 2: Density gradient column method. ISO 1183-3:1999, Plastics Methods for determining the density of non-c
28、ellular plastics Part 3: Gas pyknometer method. ISO 1268 (all parts), Fibre-reinforced plastics Methods of producing test plates. ISO 1886:1990, Reinforcement fibres Sampling plans applicable to received batches. ISO 2577:1984, Plastics Thermosetting moulding materials Determination of shrinkage. IS
29、O 3672-1:2000, Plastics Unsaturated-polyester resins (UP-R) Part 1: Designation system. ISO 3673-1:1996, Plastics Epoxy resins Part 1: Designation. ISO 9782:1993, Plastics Reinforced moulding compounds and prepregs Determination of apparent volatile- matter content. ISO 10352:1997, Fibre-reinforced
30、plastics Moulding compounds and prepregs Determination of mass per unit area. ISO 11667:1997, Fibre-reinforced plastics Moulding compounds and prepregs Determination of resin, reinforced-fibre and mineral-filler content Dissolution methods. ISO 12114:1997, Fibre-reinforced plastics Thermosetting mou
31、lding compounds and prepregs Determination of cure characteristics. ISO 12115:1997, Fibre-reinforced plastics Thermosetting moulding compounds and prepregs Determination of flowability, maturation and shelf life. ISO 14125:1998, Fibre-reinforced plastic composites Determination of flexural propertie
32、s. ISO 14126:1999, Fibre-reinforced plastic composites Determination of compressive properties in the in-plane direction. ISO 14130:1997, Fibre-reinforced plastic composites Determination of apparent interlaminar shear strength by short-beam method. IEC 60093:1980, Methods of test for volume resisti
33、vity and surface resistivity of solid electrical insulating materials. IEC 60112:1979, Method for determining the comparative and the proof tracking indices of solid insulating materials under moist conditions. IEC 60243 (all parts), Electrical strength of insulating materials Test methods. IEC 6025
34、0:1969, Recommended methods for the determination of the permittivity and dielectric dissipation factor of electrical insulating materials at power, audio and radio frequencies including metre wavelengths. IEC 60695-2-12:2000, Fire hazard testing Part 2-12: Glowing/hot-wire based test methods Glow-w
35、ire flammability test method for materials. 3) To be published. (Revision, in parts, of ISO 1183:1987)ISO 8605:2001(E) ISO 1002 All rights rsedevre 3 3 Term and definition For the purposes of this International Standard, the following term and definition apply. 3.1 sheet moulding compound SMC a homo
36、geneous mixture of resin and chopped and/or unchopped reinforcement, with or without fillers, produced in sheet form in thicknesses generally between 1 mm and 25 mm, and capable of being cured by moulding under heat and pressure NOTE Additives may be added to the mixture to obtain an SMC with specif
37、ic properties. 4 Classification of SMC 4.1 General A large number of combinations of resin systems, reinforcements, additives and fillers are necessary in order to manufacture a wide variety of different types of moulded part, each of which requires a well-defined composition to give it its particul
38、ar shape; mechanical properties; electrical properties; surface finish. In view of this large number of possible combinations, two systems of classification are proposed: the first one based on the composition; the second one based on the shrinkage. 4.2 Classification based on composition 4.2.1 Resi
39、n (matrix) Various types of resin can be used, such as: unsaturated-polyester resin (UP); epoxy resin (EP); polyurethane resin (PUR); vinyl ester resin (VE); phenolic resin (P). For a description of the resin concerned, refer to the relevant International Standard (for polyester resins, see ISO 3672
40、-1; for epoxy resins, see ISO 3673-1).ISO 8605:2001(E) 4 ISO 1002 All rights rsedevre 4.2.2 Reinforcement(s) 4.2.2.1 Form Although this International Standard covers only glass reinforcements, other types may nevertheless be used together with the main (glass) reinforcement. The glass reinforcement
41、generally takes the form of chopped or unchopped strands, used alone or in combination with continuous yarns deposited in various ways, depending on the properties required for the parts to be produced from the SMC (e.g. continuous-strand mats, looped-strand mats). 4.2.2.2 Strand length With isotrop
42、ic reinforcements produced using chopped strands, the length varies from one type of SMC to another (usually 25 mm and/or 50 mm). The length of the chopped strands shall be stated in the specification. With directional reinforcements, the fibres may be continuous or discontinuous, with lengths varyi
43、ng between 10 cm and 40 cm. The orientation of these directional fibres is generally such that their ends are distributed in a homogeneous manner in a direction longitudinal to the sheet or to the roll of SMC (i.e. staggered). 4.2.2.3 Proportion of reinforcement Sheet moulding compound may contain b
44、etween 15 % by mass and 70 % by mass of reinforcing material. The proportion of reinforcement shall be stated after the designation of the type of SMC. 4.2.3 Modes of reinforcement 4.2.3.1 General Depending on the length of the fibres (i.e. whether they are chopped or not) and their orientation, dis
45、tinction can be made between the following types of SMC. 4.2.3.2 SMC-R (R = random) This type of SMC is produced using strands chopped and deposited without preferential orientation. This is the type called “standard”, which permits flow in all directions and has mechanical properties which are aver
46、age and isotropic. EXAMPLE SMC-R containing 40 % by mass of reinforcement is designated SMC-R40. 4.2.3.3 SMC-C (C = continuous) This is produced using a continuous reinforcement deposited with a roughly defined orientation. The values of the mechanical properties in the direction of the reinforcemen
47、t are distinctly higher than those in the other direction. The tendency to creep in the direction of the reinforcement is very slight, however. In certain types of SMC, fabrics may be used as a continuous reinforcement. The mechanical properties and creep characteristics of the resulting laminate wi
48、ll depend on the structure of the fabric. 4.2.3.4 SMC-D (D = directional) This is produced from strands chopped to give fibres having a length greater than for SMC-R and deposited with a roughly defined orientation. SMC-D is in fact a compromise between SMC-R and SMC-C with regard to mechanical prop
49、erties and creep.ISO 8605:2001(E) ISO 1002 All rights rsedevre 5 4.2.3.5 Combinations of SMC-R with directional reinforcements These combinations, which are more widely used than SMC-C or SMC-D, are designated SMC-C/R and SMC-D/R, respectively. They give a moulded part in which the mechanical properties and creep characteristics are predominant in one direction in the laminate. EXAMPLE SMC-C/R with 25 % by mass
