ASTM D1755-2009 Standard Specification for Poly(Vinyl Chloride) Resins《聚氯乙烯树脂标准规范》.pdf
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1、Designation: D 1755 09Standard Specification forPoly(Vinyl Chloride) Resins1This standard is issued under the fixed designation D 1755; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parenthe
2、ses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This specification covers the establishment of require-ments for homopolymers of vinyl chloride in original powderform intended for subsequent mixing an
3、d processing in ther-moplastic compositions. These resins have a nominal specificgravity of 1.4 and a theoretical chlorine content of 56.8 %.1.2 Two types of resin have been recognized: generalpurpose and dispersion. When mixed with the customaryamount of plasticizer, general-purpose resins yield a
4、dry ormoist powder while dispersion resins yield a liquid slurry.Since many resins are polymerized to meet special require-ments, a system of classification has been provided that permitsa wide choice of grades.1.3 The values stated in SI units are to be regarded as thestandard.1.4 This standard doe
5、s not purport to address all of thesafety problems, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.NOTE 1This standard and ISO 1264 198
6、0 address the same subjectmatter, but differ in technical content (and results cannot be directlycompared between the two test methods.2. Referenced Documents2.1 ASTM Standards:2D 281 Test Method for Oil Absorption of Pigments bySpatula Rub-outD 495 Test Method for High-Voltage, Low-Current, DryArc
7、Resistance of Solid Electrical InsulationD 883 Terminology Relating to PlasticsD 1125 Test Methods for Electrical Conductivity and Re-sistivity of WaterD 1243 Test Method for Dilute Solution Viscosity of VinylChloride PolymersD 1600 Terminology for Abbreviated Terms Relating toPlasticsD 1823 Test Me
8、thod for Apparent Viscosity of Plastisolsand Organosols at High Shear Rates by Extrusion Viscom-eterD 1824 Test Method for Apparent Viscosity of Plastisolsand Organosols at Low Shear RatesD 1895 Test Methods for Apparent Density, Bulk Factor,and Pourability of Plastic MaterialsD 1921 Test Methods fo
9、r Particle Size (Sieve Analysis) ofPlastic MaterialsD 2132 Test Method for Dust-and-Fog Tracking and Ero-sion Resistance of Electrical Insulating MaterialsD 2396 Test Methods for Powder-Mix Time of Poly(VinylChloride) (PVC) Resins Using a Torque RheometerD 3030 Test Method for Volatile Matter (Inclu
10、ding Water)of Vinyl Chloride ResinsD 3892 Practice for Packaging/Packing of PlasticsE1 Specification for ASTM Liquid-in-Glass Thermometers3. Terminology3.1 DefinitionsDefinitions are in accordance with Termi-nology D 883 and Terminology D 1600, unless otherwiseindicated.4. Classification4.1 TypesThi
11、s specification covers two types of resin:4.1.1 Type GPGeneral-purpose resins primarily intendedfor either dry blending, preblending, or thermoplastic process-ing.4.1.2 Type DDispersion resins primarily intended for usein organosols and plastisols. As a class, these are small inparticle size.4.2 Gra
12、desThis specification provides for as many gradesof resin as it is feasible to be selected from the possiblecombinations of requirements in Table 1 and Table 2. A gradeis designated by first indicating the type (GPor D), followed bycell numbers for each property in the order in which they arelisted
13、in Table 1 and Table 2. Where there is no interest in aproperty, a “0” is entered in place of a cell number. If it weredesirable, it is acceptable to extend a cell limit by half the cell1This specification is under the jurisdiction of ASTM Committee D20 onPlastics and is the direct responsibility of
14、 Subcommittee D20.15 on ThermoplasticMaterials.Current edition approved Feb. 1, 2009. Published February 2009. Originallyapproved in 1960. Last previous edition approved in 2001 as D 1755 - 92(2001).2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service
15、 at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2
16、959, United States.range into the next higher or lower cell, but not both. When thisis done, it is indicated by a dash above the cell number ( n)ifthe extension is into the higher cell, or a dash below (n) if intothe lower cell. Extension of cell limits applies only to cellswhere ranges of propertie
17、s are allowed and not where maxi-mum or minimum values are specified. The cell number of thefirst property (dilute solution viscosity) is separated from thosethat follow by a dash.4.3 Inherent Viscosity Cell NumberWhen selecting theinherent viscosity cell number, the number shall cover the fullinher
18、ent viscosity production range for the specific product. Aresin with an inherent viscosity of 1.07 to 1.11 productionrange would have a 5 cell number. A resin with an inherentviscosity of 1.10 to 1.14 production range would have a 6 cellnumber5. General Requirements5.1 The resin shall be in powder f
19、orm.5.2 The resin shall conform to the requirements of Table 1or Table 2, as specified by the type and grade designationagreed upon between the purchaser and the supplier.NOTE 2It is possible that properties not covered, such as heatstability, color, and volatile loss, are also important for applica
20、tionperformance in compounds.6. Sampling6.1 Sample using a statistically acceptable procedure.7. Number of Tests7.1 One set of test specimens shall be considered sufficientfor testing each batch.8. Retest and Rejection8.1 If any failure occurs, the materials shall be permitted tobe retested to estab
21、lish conformity in accordance with anagreement between the purchaser and the supplier.TEST METHODS9. Dilute Solution Viscosity9.1 Test Method D 1243.10. Apparent (Bulk) Density10.1 Test Methods D 1895.11. Sieve Analysis11.1 Test Method D 1921.NOTE 3Specifications for sieve analysis (Table 1) are pri
22、marilyintended to control fines.12. Brookfield Viscosity12.1 Test Method D 1824. Take readings using a BrookfieldRVF viscometer at 20 r/min with a No. 6 spindle. Prepare theplastisol sample as follows:12.1.1 PlasticizerDi (2-ethylhexyl) phthalate (DOP).TABLE 1 Type GP, General-Purpose Resin Requirem
23、entsDesig-nationOrderNo.PropertyCell Limits01 2 3 4 5 6 7 8 91 Dilute solution(inherent) viscosityunspecfied 0.39 0.70 0.75 0.87 0.99 1.09 1.19 1.29 1.382 Sieve analysis,percent throughNo. 200 (75-m)sieveunspecified 0 to 9 10 to 19 20 to 29 30 to 39 40 to 49 50 to 59 60 to 79 80 to 99 1003 Apparent
24、(bulk)density:g/1000 cm3unspecified 1993 Severs viscosity,poiseunspecified 0 to 49 50 to 99 100 to 149 150 to 199 200 to 299 300 to 499 500 to 999 1000 to 1499 1499D175509212.1.2 Apparatus:12.1.2.1 Mixer, planetary-gear type, equipped with flatbeater mixing paddle.12.1.2.2 Vacuum Desiccator, capable
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