欢迎来到麦多课文档分享! | 帮助中心 海量文档,免费浏览,给你所需,享你所想!
麦多课文档分享
全部分类
  • 标准规范>
  • 教学课件>
  • 考试资料>
  • 办公文档>
  • 学术论文>
  • 行业资料>
  • 易语言源码>
  • ImageVerifierCode 换一换
    首页 麦多课文档分享 > 资源分类 > PDF文档下载
    分享到微信 分享到微博 分享到QQ空间

    ASTM D1917-2003(2017) Standard Test Methods for Rubber Property&x2014 Shrinkage of Raw and Compounded Hot-Polymerized Styrene-Butadiene Rubber (SBR)《热聚合丁苯橡胶(SBR)生胶和复合橡胶的收缩性的标准试验方法》.pdf

    • 资源ID:510681       资源大小:75.45KB        全文页数:4页
    • 资源格式: PDF        下载积分:10000积分
    快捷下载 游客一键下载
    账号登录下载
    微信登录下载
    二维码
    微信扫一扫登录
    下载资源需要10000积分(如需开发票,请勿充值!)
    邮箱/手机:
    温馨提示:
    如需开发票,请勿充值!快捷下载时,用户名和密码都是您填写的邮箱或者手机号,方便查询和重复下载(系统自动生成)。
    如需开发票,请勿充值!如填写123,账号就是123,密码也是123。
    支付方式: 支付宝扫码支付    微信扫码支付   
    验证码:   换一换

    加入VIP,交流精品资源
     
    账号:
    密码:
    验证码:   换一换
      忘记密码?
        
    友情提示
    2、PDF文件下载后,可能会被浏览器默认打开,此种情况可以点击浏览器菜单,保存网页到桌面,就可以正常下载了。
    3、本站不支持迅雷下载,请使用电脑自带的IE浏览器,或者360浏览器、谷歌浏览器下载即可。
    4、本站资源下载后的文档和图纸-无水印,预览文档经过压缩,下载后原文更清晰。
    5、试题试卷类文档,如果标题没有明确说明有答案则都视为没有答案,请知晓。

    ASTM D1917-2003(2017) Standard Test Methods for Rubber Property&x2014 Shrinkage of Raw and Compounded Hot-Polymerized Styrene-Butadiene Rubber (SBR)《热聚合丁苯橡胶(SBR)生胶和复合橡胶的收缩性的标准试验方法》.pdf

    1、Designation: D1917 03 (Reapproved 2017)Standard Test Methods forRubber PropertyShrinkage of Raw and Compounded Hot-Polymerized Styrene-Butadiene Rubber (SBR)1This standard is issued under the fixed designation D1917; the number immediately following the designation indicates the year oforiginal adop

    2、tion or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S. Department of Defens

    3、e.1. Scope1.1 These test methods cover the determination of millshrinkage of hot-polymerized styrene-butadiene rubbers (SBR)and their compounds.1.2 The values stated in SI units are to be regarded as thestandard. The values in parentheses are for information only.1.3 This standard does not purport t

    4、o address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety, health, and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.4 This international standard was

    5、 developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Reference

    6、d Documents2.1 ASTM Standards:2D3182 Practice for RubberMaterials, Equipment, and Pro-cedures for Mixing Standard Compounds and PreparingStandard Vulcanized SheetsD3896 Practice for Rubber From Synthetic SourcesSamplingD4483 Practice for Evaluating Precision for Test MethodStandards in the Rubber an

    7、d Carbon Black ManufacturingIndustriesE145 Specification for Gravity-Convection and Forced-Ventilation Ovens3. Summary of Test Methods3.1 A specimen of raw or compounded rubber is preparedon a standard laboratory mill, its dimensions are measured orcontrolled by a cutting technique, it is heat aged

    8、in a circulatingoven at 100C, cooled at room temperature, and the dimen-sions are again measured. The linear percent shrinkage of thespecimen is calculated.3.2 The following test methods are given:3.2.1 Test Method AFor raw SBR which is particularlyapplicable to rubbers having shrinkage below 25 %,

    9、such ascross-linked types.3.2.2 Test Method BFor compounded SBR.4. Significance and Use4.1 The shrinkage of SBR rubbers and their compoundsafter processing is of importance in many applications. Thisproperty can also be used for control, specifications, andfabrication purposes.5. Apparatus5.1 MillA

    10、standard laboratory mill as described in Prac-tice D3182.5.2 Laboratory Oven, having internal horizontal dimensionsin excess of 300 by 480 mm (12 by 19 in.) and conforming tothe requirements for Type II, Grade B ovens given in Specifi-cation E145.5.3 Mill Knife.5.4 Cutting Tools:5.4.1 A tool having

    11、two parallel blades spaced about 20 mm(0.8 in.) apart. Two standard mill knives bolted together,properly spaced, may be used.5.4.2 A150 mm long by 100 mm wide (6.0 by 4.0 in.) metaltemplate approximately 1 mm (0.04 in.) thick, equipped with ahandle, and having its longitudinal dimension curved to fi

    12、t thecontour of the mill roll, may also be used. It is especiallysuitable for raw rubbers that are disjunctive or form a poorsheet. A mill knife is used for cutting the rubber.5.5 Smooth Sheet, of TFE-fluorocarbon, metal, or glass,having dimensions to accommodate the specimen.1These test methods are

    13、 under the jurisdiction of ASTM Committee D11 onRubber and Rubber-like Materials and are the direct responsibility of SubcommitteeD11.12 on Processability Tests.Current edition approved Oct. 1, 2017. Published December 2017. Originallyapproved in 1962. Last previous edition approved in 2012 as D1917

    14、 03 (2012).DOI: 10.1520/D1917-03R17.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.Copyright ASTM Internatio

    15、nal, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guide

    16、s and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.15.6 Linear Scale, 500 mm (20 in.) long, graduated in 1.0mm (0.05 in.).5.7 Dusting powder, for example talc or soapstone.6. Sampling6.1 Take samples in accordance with Practice D3896.NOTE 1Make s

    17、ure the sample is talc-free.7. Test Specimens7.1 Standard SpecimensThe standard specimen is a stripcut with a double-bladed knife. Three specimens are cut, one inthe center, and two, each halfway between the center and theedge of the banded material.7.2 Template SpecimensAn alternative method is the

    18、 useof a template. When the template is used, only one specimen iscut exactly around the edges of the template from the center ofthe material banded on the mill.NOTE 2These two types of specimens will not necessarily giveidentical results. Results obtained on one type of specimen should not becompar

    19、ed with those obtained using the other.TEST METHOD ARAW RUBBER8. Procedure8.1 With the mill rolls maintained at 50 6 5C (122 6 9F)and roll separation of 0.20 6 0.05 mm (0.008 6 0.002 in.),pass 200 g of rubber twice without banding.8.2 Adjust the roll separation to 0.6 6 0.1 mm (0.024 60.004 in.), ba

    20、nd the rubber on the slow (front) roll, and millexactly 10 min. Make three-quarter cuts from alternate sidesevery12 min throughout the milling.8.3 Open the mill rolls slowly and evenly until the bankdisappears and the rubber receives no pressure from theopposite roll. This is done by opening the rol

    21、ls in increments ofno more than 0.25 mm (0.01 in.) on alternate ends of the millrolls.8.4 Within 15 s after the mill rolls are opened, trim the band(if necessary) by cutting off no more than 15 mm (0.6 in.) fromeach of the outside edges (see Note 3).8.5 Cut three standard specimens, one from the cen

    22、ter andone halfway between the center and each edge. Make the cutswhile the mill is running by holding the cutting tool (see 5.4.1)firmly against the roll at the indicated locations for the durationof one revolution.8.6 Stop the mill and make a cut straight across the bandedrubber. Start the mill an

    23、d remove the specimens, taking carenot to stretch or otherwise distort them. Place the threespecimens on a smooth, well-dusted metal, glass, or TFE-fluorocarbon sheet, with the inside or smooth surface down(see Note 4).NOTE 3Steps 8.4 8.6 should take no more than 2 min.8.7 If the template specimen i

    24、s used, stop the mill after theprocedure in 8.4, place the template (see 5.4.2) in the middle ofthe banded rubber and cut one specimen as fast as possible,making sure that the cuts are made exactly along the edges.Remove the specimen, place it on a smooth well-dusted surfacewith the inside or smooth

    25、 surface down, and mark thelongitudinal direction.NOTE 4Steps 8.4 and 8.7 should take no more than 2 min.NOTE 5The dusted surface is used to prevent any adhesion or sticking.8.8 Place the sheet holding the specimens in the ovencontrolled at 100 6 2C (212 6 3.8F) for 1 h.8.9 Remove the sheet with the

    26、 specimens from the oven andwithout removing the specimens, allow them to cool at 23 62C (73.4 6 3.6F) for 1 h.8.10 Measure the length of each of three standard specimensto the nearest 1 mm (0.05 in.). Measure the shrunken length ofthe template specimen on three places. Record all three values.8.11

    27、Calculate the percentage of shrinkage using the equa-tion shown in 10.1.TEST METHOD BCOMPOUNDED RUBBER9. Procedure9.1 With the mill rolls maintained at 50 6 5C (122 6 9F)and roll separation of 0.20 6 0.05 mm (0.008 6 0.002 in.) passtwice without banding 300 g of the compound that had at least1-h res

    28、t period after mixing.9.2 Adjust the roll separation to 1.30 6 0.15 mm (0.050 60.006 in.), band the compound on the fast (back) roll, and millfor 4 min, making three-quarter cuts from alternate sides every12 min. The fast roll is used at this point to improve the bandingof tacky or baggy compounds.9

    29、.3 Continue milling of the compound on the fast roll for 1min without cutting.9.4 Open the mill rolls slowly and evenly until the bankdisappears and the compound receives no pressure from theopposite roll. Increase the opening by adjusting in incrementsof no more than 0.25 mm (0.01 in.) on alternate

    30、 ends of the millroll.9.5 Within 15 s after the mill rolls are opened, trim the bandby cutting off no more than 15 mm (0.6 in.) from each of theoutside edges (see Note 6).9.6 Cut three standard specimens about 20 mm (0.8 in.) inwidth, one from the center and one halfway between the centerand each ed

    31、ge. Make the cuts while the mill is running byholding the cutting tool firmly against the roll at the indicatedlocations for the duration of one revolution.9.7 Stop the mill and make a cut straight across the bandedcompound. Start the mill and remove the specimens, takingcare not to stretch or other

    32、wise distort them. Place the threespecimens on a smooth, well-dusted metal, glass, or TFE-fluorocarbon surface with the inside or smooth surface down.NOTE 6Steps 9.5, 9.6, and 9.7 should take no more than 2 min.NOTE 7Dusted surface is used to prevent any adhesion or sticking.9.8 If the template spec

    33、imen is used, stop the mill after 9.5,place the template in the middle of the banded compound andcut the specimen as fast as possible, making sure that the cutsare made exactly along the edges. Remove the specimen, placeit on a smooth well-dusted metal, glass, or TFE-fluorocarbonD1917 03 (2017)2surf

    34、ace, with the inside or smooth surface down, and mark thelongitudinal direction (see Note 8).NOTE 8Steps 9.5 and 9.8 should take no more than 2 min.9.9 Place the sheet with the specimens in the oven con-trolled at 100 6 2C (212 6 3.8F) for 1 h.9.10 Remove the sheet with the specimens from the ovenan

    35、d without removing the specimens allow them to cool at 236 2C (73.4 6 3.6F) for 1 h.9.11 Measure the length of each standard specimen to thenearest 1 mm (0.05 in.). Measure the shrunken length of thetemplate specimen on three places. Record all three values.9.12 Calculate the percentage of shrinkage

    36、 using the equa-tion shown in 10.1.10. Calculation10.1 Calculate the percentage of shrinkage, S, as follows:S 5L02 L!/L0#3100 (1)where:L0= original length of the standard specimen which is equalto the circumference of the mill roll (see Note 9), andL = shrunken length or the average value of three l

    37、engthmeasurements after oven aging and cooling.NOTE 9The circumference of a standard mill is between 471.2 and486.9 mm (18.54 and 19.16 in.). The average value of 479.0 mm (18.85in.) may be used except in referee or precision testing, when the actualcircumference should be determined. If the templat

    38、e is used, the originallength shall be 150 mm.11. Report11.1 Report the following information:11.1.1 Sample identification,11.1.2 Method used,11.1.3 Type of specimen used,11.1.4 Aging conditions,11.1.5 Average value of three measurements, and11.1.6 Date of test.PRECISION AND BIAS12. Precision and Bi

    39、as12.1 This precision and bias section has been prepared inaccordance with Practice D4483. Please refer to this practicefor terminology and other statistical calculation details.12.2 The precision results in this precision and bias sectiongive an estimate of the precision of this test method with th

    40、ematerials (rubbers, etc.) used in the particular interlaboratoryprogram as described below. The precision parameters shouldnot be used for acceptance or rejection testing of any group ofmaterials without documentation that the parameters are appli-cable to the particular group of materials and the

    41、specifictesting protocols of the test method.12.3 A Type 1 interlaboratory test program (ITP) wasconducted in 1995. Three materials (polymers) with differentlevels of shrinkage were supplied to four laboratories; in eachlaboratory two replicate tests were conducted on each of twosuccessive test days

    42、. A test result is defined as a singlemeasurement of percent shrinkage using Method A.12.4 The precision results are given in Table 1; see notes atthe bottom of the table. Precision may be expressed in theformat of the following statements that use an “appropriatevalue” of r and R or (r) and (R) ass

    43、ociated with a mean levelor material in the table closest to the mean level underconsideration for any material in routine testing operations.12.5 For two of the materials the within-laboratory and thebetween-laboratory standard deviations are equal. This occursmainly because the within-laboratory v

    44、ariation is large and the“average of two” between-laboratory values have decreasedvariation. This situation frequently occurs in ITP that have onlya minimal number of laboratories.12.6 RepeatabilityThe repeatability, r (in percent actualshrinkage) of this test method has been established as theappro

    45、priate value tabulated in Table 1. Two single test results,obtained under normal test method procedures, that differ bymore than this tabulated r (for any given level) must beconsidered as derived from different or non-identical samplepopulations.12.7 ReproducibilityThe reproducibility, R (in percen

    46、tactual shrinkage) of this test method has been established as theappropriate value tabulated in Table 1. Two single test resultsobtained in two different laboratories, under normal testmethod procedures, that differ by more than the tabulated R(for any given level) must be considered to have come f

    47、romdifferent or non-identical sample populations.12.8 Relative PrecisionThe relative repeatability (r) andthe relative reproducibility (R) are defined for this standard asa percent of the measured percent shrinkage. These values arealso found in Table 1.12.9 BiasIn test method terminology, bias is t

    48、he differencebetween an average test value and the reference (or true) testproperty value. Reference values do not exist for this testmethod since the value (of the test property) is exclusivelydefined by the test method. Bias cannot therefore be deter-mined.13. Keywords13.1 compounded rubber; hot-p

    49、olymerized SBR; millshrinkage; raw rubberTABLE 1 Precision for Percent Shrinkage: Method AWithin Lab Between LabMaterial Mean Sr r (r) SR R (R)B 10.4 0.654 1.83 17.6 0.654 1.83 17.6A 14.4 0.742 2.08 14.4 0.808 2.26 15.7C 25.5 1.755 4.91 19.3 1.755 4.91 19.3Note: Only four laboratories participated in the ITPSr = repeatability standard deviationSR = reproducibility standard deviationr = repeatability, in measurement unitsR = reproducibility, in measurement units(r) = repeatability (relative) in percent(R) = reproducibility (relative) in perce


    注意事项

    本文(ASTM D1917-2003(2017) Standard Test Methods for Rubber Property&x2014 Shrinkage of Raw and Compounded Hot-Polymerized Styrene-Butadiene Rubber (SBR)《热聚合丁苯橡胶(SBR)生胶和复合橡胶的收缩性的标准试验方法》.pdf)为本站会员(fatcommittee260)主动上传,麦多课文档分享仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知麦多课文档分享(点击联系客服),我们立即给予删除!




    关于我们 - 网站声明 - 网站地图 - 资源地图 - 友情链接 - 网站客服 - 联系我们

    copyright@ 2008-2019 麦多课文库(www.mydoc123.com)网站版权所有
    备案/许可证编号:苏ICP备17064731号-1 

    收起
    展开