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1、BRITISH STANDARD BS EN 923:2005 Adhesives Terms and definitions The European Standard EN 923:2005 has the status of a British Standard ICS 83.180 ? Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 06:25:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 923:2005 This British Standard was publ
2、ished under the authority of the Standards Policy and Strategy Committee on 18 November 2005 BSI 18 November 2005 ISBN 0 580 46854 2 National foreword This British Standard is the official English language version of EN 923:2005. It supersedes BS EN 923:1998 which is withdrawn. The UK participation
3、in its preparation was entrusted to Technical Committee PRI/52, Adhesives, 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 Standards which implement international or European publications
4、 referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary
5、provisions of a contract. Users are responsible for its 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 responsible international/European committee any enquiries on the interpreta
6、tion, or proposals for change, and keep 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, the EN title page, pages 2 to 53 and a back cover. The BSI copyright no
7、tice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 06:25:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 923 O
8、ctober 2005 ICS 83.180Supersedes EN 923:1998 English Version Adhesives - Terms and definitions Adhsifs - Termes et dfinitionsKlebstoffe - Benennungen und Definitionen This European Standard was approved by CEN on 12 September 2005. CEN members are bound to comply with the CEN/CENELEC Internal Regula
9、tions 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 Secretariat or to any CEN member. This Eur
10、opean 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 official versions. CEN members are the nat
11、ional standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EU
12、ROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2005 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 923:2005: E Licensed Copy
13、: sheffieldun sheffieldun, na, Tue Nov 07 06:25:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 923:2005 (E) 2 Contents Page Foreword 3 Introduction4 1 Scope.5 2 Terms and definitions.5 2.1 Adhesives5 2.2 Functional adhesive components9 2.3 Chemical base products.12 2.4 Adhesive properties20 2.5 Ma
14、terial and material treatment .24 2.6 Bonding .26 2.7 Bond properties 32 Annex A (informative) Adhesives36 Annex B (informative) Adhesives joints .38 Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 06:25:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 923:2005 (E) 3 Foreword This European St
15、andard (EN 923:2005) has been prepared by Technical Committee CEN/TC 193 “Adhesives”, the secretariat of which is held by AENOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by April 2006, and con
16、flicting national standards shall be withdrawn at the latest by April 2006. This European Standard supersedes EN 923:1998. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgiu
17、m, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: sheffieldun sheffieldun, na,
18、 Tue Nov 07 06:25:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 923:2005 (E) 4 Introduction This European Standard comprises terms peculiar to, or in general use in, the adhesive and adhesive processing industry. The terms defined have been classified so that, as far as possible, related concepts
19、 (adhesives, functional adhesive components, chemical base products, adherents, adhesives properties, bonding, and bond properties) are grouped together. All definitions are numbered and an alphabetical index which includes all terms is provided at the end of this European Standard. The numbering of
20、 the individual definitions is the same in all three versions (English, French and German) of this European Standard. Consequently this European Standard can be used as a dictionary, combined with one or both of the other versions as an aid for translation of terms into French or German, as a source
21、 of information about related concepts in the adhesive industry or to provide a term for a concept. In order to find: a) the definition of a term; look up the term in the alphabetical index at the end of this European Standard. The index will refer to the number in this European Standard. The defini
22、tion, the term and any synonyms appear by the number; b) information about related terms; look up the term in the alphabetical index to find its number in this European Standard. When the term has been located in this European Standard, the related concepts can be found in the same subdivision; c) t
23、he translation of a term into the French or German language; look up the number of this term in this European Standard and locate the translation of the term and the definition under the same number in the standard of the foreign version. Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 06:25:
24、50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 923:2005 (E) 5 1 Scope This European Standard defines terms used in the adhesive industry and terms relating to adhesives in those industries that use adhesives. 2 Terms and definitions 2.1 Adhesives 2.1.1 adhesive non-metallic substance capable of jo
25、ining materials by surface bonding (adhesion), and the bond possessing adequate internal strength (cohesion) NOTE Many adhesives names refer to their main functional components; the physical nature of the adhesive. Table A.1 lists main binders, temperature and mode of setting of these adhesives and
26、the number of parts that have to be mixed before use. Some other names refer to the method of application, or mode of setting. Furthermore adhesives are named according to points of less significance: field of application (e.g. footwear adhesive, construction adhesive, packaging adhesive), material
27、to bond (e.g. paper adhesive, wood adhesive, wall paper adhesive, rubber adhesive), place of application (e.g. in situ adhesive), speed of setting (e.g. instant adhesive), bond properties (e.g. structural adhesive), shape (e.g. powder adhesive, pearl glue, table glue for solid glue, adhesive film fo
28、r shaped adhesive, or stick adhesive for stick shaped adhesives), or aspect (e.g. white glue). 2.1.2 water-borne adhesive; aqueous adhesive adhesive in which the solvent, or the continuous phase is water 2.1.3 glue aqueous adhesive specifically designed for bonding of wood and other porous substrate
29、s NOTE A glue can be based on a natural product like protein or synthetic resins (UF, PF or PVAC, see 2.3.51, 2.3.52 and 2.3.30 respectively) 2.1.4 paste adhesive adhesive of a non-stringy, highly viscous nature Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 06:25:50 GMT+00:00 2006, Uncontro
30、lled Copy, (c) BSI EN 923:2005 (E) 6 NOTE Paste adhesives based on starch or cellulose ethers are usually applied for paper bonding (e.g. paper bags or wall paper), based on synthetic polymers for bonding floor coverings. 2.1.5 dispersion adhesive adhesive consisting of a stable dispersion of a poly
31、mer in a liquid continuous phase, usually water NOTE Dispersion adhesives containing an elastomer as polymer conventionally are often termed “latex“. 2.1.6 emulsion adhesive adhesive consisting of a stable emulsion of a liquid hydrophobic resin in water 2.1.7 solvent-borne adhesive; solution adhesiv
32、e, solvent-based adhesive adhesive in which the binder is dissolved in a volatile organic solvent NOTE In practice solvents used for solvent-borne adhesives have boiling points below 170 C at 101,3 kPa and a vapour pressure greater than 50 Pa at 20 C and, if flammable, a flash point below 55 C. 2.1.
33、8 solvent free adhesive adhesive that is substantially free from organic solvents (see 2.1.7) NOTE “Substantially free“ means that organic solvents have neither been added in the basic elements of an adhesive nor during its process of manufacture out of these basic elements. “Low solvent adhesives“
34、contain at most 5 % of solvents based on total weight of the adhesive. 2.1.9 plastisol adhesive adhesive material formed by the dispersion of a polymer in a plasticizer such that, when the dispersion is heated, the polymer dissolves irreversibly in the plasticizer to form a solution that solidifies
35、on cooling 2.1.10 toughened adhesive adhesive which by virtue of its physical structure discourages propagation of cracks NOTE The toughening can be achieved, for example, by the creation of a discrete elastomeric phase within the adhesive matrix. 2.1.11 spray adhesive adhesive that is projected in
36、small particles by means of a pressure medium 2.1.12 gap-filling adhesive adhesive designed for filling wider gaps between uneven surfaces NOTE For high strength load-bearing purposes, e.g. in the car industry, the adhesive will provide satisfactory bond strength in bond-lines up to 1 mm in thicknes
37、s. For the construction industry, high solid adhesives designed for use between uneven surfaces and to bond satisfactorily in gaps up to 6 mm are used. 2.1.13 sealant adhesive material, used to fill gaps where movement can occur in service and which, when set, has elastic properties NOTE The term “s
38、ealant“ is also used for a material filling a void against the ingress or egress of a fluid under pressure. Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 06:25:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 923:2005 (E) 7 2.1.14 film adhesive adhesive in film form, with or without a carri
39、er NOTE Film adhesives set usually by means of heat under pressure. 2.1.15 foaming adhesive adhesive designed to foam in situ, after application, in order to provide extensive gap-filling properties 2.1.16 unsupported film adhesive adhesive supplied in sheet, film or web, without an incorporated car
40、rier 2.1.17 supported film adhesive adhesive supplied in sheet or film form with an incorporated carrier that remains in the bond when the adhesive is applied and used NOTE The carrier can be woven or non-woven material consisting of organic or inorganic fibres. 2.1.18 adhesive tape flexible backing
41、 or carrier coated with a pressure-sensitive, remoistable, or heat activatable adhesive 2.1.19 transfer tape carrier coated with a pressure-sensitive adhesive which, when detached from the substrate, permits the carrier to be removed leaving only the adhesive 2.1.20 double coated adhesive tape; doub
42、le sided adhesive tape tape where the adhesive is applied on both sides of the carrier 2.1.21 multiple-layer adhesive film adhesive, usually supported with a different adhesive composition on each side NOTE Multiple-layer adhesives are designed to bond dissimilar materials. 2.1.22 encapsulated adhes
43、ive adhesive in which particles or droplets of the adhesive or an adhesive component are enclosed in a protective film (microcapsules) usually to prevent cross-linking until the film is destroyed by suitable means 2.1.23 one-way stick adhesive adhesive that is applied to only one of the adherends 2.
44、1.24 separate application adhesive adhesive consisting of different components which are applied separately to adherends NOTE Pressing together the components initiates a chemical reaction curing the bond-line. 2.1.25 two way stick adhesive, double spread adhesive adhesive that is applied to both ad
45、herends Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 06:25:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 923:2005 (E) 8 2.1.26 one part adhesive adhesive ready for use NOTE A one-part adhesive can require the addition of water or the presence of ambient moisture for setting. 2.1.27 two
46、part adhesive adhesive that consist of two separate reactive components that are mixed before use 2.1.28 multi-part adhesive adhesive that consists of two or more separate reactive components that are mixed before use 2.1.29 contact adhesive adhesive that is applied to both adherends and when allowe
47、d to become apparently dry will instantly develop a firm bond when a firm but not sustained pressure is applied NOTE “apparently dry“ means that the adhesive coats are “dry to touch“ at some stage in the evaporation of volatile constituents. 2.1.30 hot melt adhesive adhesive that is applied in the m
48、olten state and forms a bond on cooling to a solid state 2.1.31 heat activated adhesive adhesive pre-applied to the adherends that is rendered tacky prior to use by application of heat and forms a bond on cooling under pressure 2.1.32 heat sealing adhesive adhesive pre-applied to one or both adheren
49、ds that is activated by the application of heat and forms a bond on cooling NOTE Heat-sealing adhesives are commonly used in the packaging industry. 2.1.33 solvent activated adhesive adhesive pre-applied to an adherend that is rendered tacky immediately prior to use by the application of solvent 2.1.34 pressure sensitive adhesive adhesive which in a dry state is permanently tacky at room temperature and adheres readily to surfaces under light and brief pressure NOTE Pressure-sens
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