ASTM D3192-2009 Standard Test Methods for Carbon Black Evaluation in NR (Natural Rubber)《NR(天然橡胶)中碳黑含量评定的标准试验方法》.pdf
《ASTM D3192-2009 Standard Test Methods for Carbon Black Evaluation in NR (Natural Rubber)《NR(天然橡胶)中碳黑含量评定的标准试验方法》.pdf》由会员分享,可在线阅读,更多相关《ASTM D3192-2009 Standard Test Methods for Carbon Black Evaluation in NR (Natural Rubber)《NR(天然橡胶)中碳黑含量评定的标准试验方法》.pdf(7页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: D 3192 09Standard Test Methods forCarbon Black Evaluation in NR (Natural Rubber)1This standard is issued under the fixed designation D 3192; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A
2、number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 These test methods cover the standard materials, testformulation, mixing procedure, and test methods for theevaluation and production c
3、ontrol of carbon blacks in naturalrubber (NR).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 to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of t
4、he user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D 412 Test Methods for Vulcanized Rubber and Thermo-plastic ElastomersTensionD 1799 Practice for Carbon Bl
5、ackSampling PackagedShipmentsD 1900 Practice for Carbon BlackSampling Bulk Ship-mentsD 2084 Test Method for Rubber PropertyVulcanizationUsing Oscillating Disk Cure MeterD 3182 Practice for RubberMaterials, Equipment, andProcedures for Mixing Standard Compounds and Prepar-ing Standard Vulcanized Shee
6、tsD 4483 Practice for Evaluating Precision for Test MethodStandards in the Rubber and Carbon Black ManufacturingIndustries3. Significance and Use3.1 The major portion of carbon black consumed by therubber industry is used to improve the physical properties, lifeexpectancy, and utility of rubber prod
7、ucts. These test methodsprovide a natural rubber formulation and directions for evalu-ating carbon black intended for use in rubber products.3.2 These test methods may be used to characterize carbonblack in terms of specific properties of the standard compound.These test methods are useful for the q
8、uality assurance ofcarbon black production. They may also be used for thepreparation of reference compounds, to confirm the day-to-dayreliability of testing operations used in the rubber industry, forthe evaluation of experimental compounds, and quality controlof production compounds.4. Standard Tes
9、t Formula4.1 Standard Formula:Material IRMANo. Quantity, partsby massNatural rubberB. 100.00Stearic acid 21 3.00Zinc oxide 91 5.00Benzothiazyl disulfide 2 0.60Sulfur 31 2.50Carbon blackC. 50.00Total 161.10Batch factor:DTest Method AMill 4.00Test Method BInternal Mixer 6.00Test Method CMiniature Inte
10、rnal 0.40Mixer_AIRM 91 is available from R. E. Carroll, Inc., 1570 North OldenAve.,Trenton, NJ08638; (800) 2579365. IRM 2, IRM 21, and IRM 31 are available from AkronRubber Development Lab, 2887 Gilchrist Road, Akron, OH 44305; (330)7946600.BSMR L and STR L have been found to give satisfactory perfo
11、rmance. Othersources of rubber may give satisfactory results but have not been investigated bySubcommittee D24.71. Other sources of rubber should be checked to ensure thatresults equivalent to SMR L are attained before using in this test method.CUse 75.00 parts by mass of carbon blacks in the N-800
12、and N-900 series.DWeigh rubber and carbon black to the nearest 1 g, sulfur and accelerator to thenearest 0.02 g, and all other compounding materials to the nearest 0.1 g.5. Sampling and Sample Preparation5.1 Samples shall be taken in accordance with PracticeD 1799 or Practice D 1900.5.2 The carbon b
13、lack shall be conditioned before weighingand mixing by heating for1hinanoven set at 125 6 1C. Theblack shall be placed in an open vessel of suitable dimensionsso that the depth of black is no more than 10 mm during1These test methods are under the jurisdiction of ASTM Committee D24 onCarbon Black an
14、d are the direct responsibility of Subcommittee D24.71 on CarbonBlack Testing in Rubber.Current edition approved May 1, 2009. Published May 2009. Originallyapproved in 1973. Last previous edition approved in 2005 as D 3192 05.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orco
15、ntact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.conditioning. The bl
16、ack conditioned as above shall be stored ina closed moisture-proof container until ready for mixing.6. Mixing Procedures6.1 For general mixing procedure refer to Practice D 3182.The following mixing procedures are acceptable in testingcarbon black: (1) Test Method AMill Mix, (2) Test MethodBInternal
17、 Mixer, and (3) Test Method CMiniature InternalMixer.6.1.1 Test Method AMill Mix:Duration,minAccumulative,minSet the mill opening at 1.4 mm (0.055 in.) and ad-just and maintain roll temperature at 70 6 5C. 0 0Add rubber and band on the front roll.Make two34 cuts from each side. 2.0 2.0Set mill openi
18、ng at 1.65 mm (0.065 in.).Add stearic acid.Make one34 cut from each side. 2.5 4.5Add sulfur, accelerator, and zinc oxide.Make two34 cuts from each side. 2.0 6.5Add all the black.When that portion of the carbon black that wasadded has dropped through to the mill pan and thebank is dry, make two34 cut
19、s from each side.Open the mill to 1.9 mm (0.075 in.) and add thecarbon black from the mill pan until all is incorpo-rated.Make three34 cuts from each side. 7.5 14.0NoteDo not cut any stock while free carbon blackis evident in the bank or on the milling surface. Becertain to return any pigments that
20、drop through themill to the milling stock.Set the mill opening at 0.80 mm (0.032 in.) andpass the rolled batch endwise through the mill sixtimes. 2.0 16.0Open the mill to give a minimum stock thickness of6 mm (0.25 in.) and pass the stock through the rollsfour times, folding it back on itself each t
21、ime. 1.0 17.0Total Time 17.06.1.1.1 Check the batch mass and record. If outside of therange from 641.2 to 647.6 g, reject the batch. From this stock,cut enough sample to allow testing of or curing characteristicsin accordance with Test Method D 2084, if desired.6.1.1.2 Open the mill and sheet off to
22、 produce a thickness of2.2 mm (0.085 in.).6.1.1.3 Cool on a flat, dry metal surface, at a temperature of23 6 3C for 1 to 24 h. Unless the relative humidity of thelaboratory is controlled at 50 6 5 %, the sheeted stock shouldbe cooled and stored in a closed container to prevent moistureabsorption.6.1
23、.2 Test Method BInternal Mixer:Duration,minAccumulative,minAdjust the internal mixer temperature to create adump temperature between 110 and 125C.Close the discharge gate, start the rotor, raise theram, and charge the materials as described.Lower the ram after each operation. 0 0Add the rubber. 0.5
24、0.5Add the benzothiazyl disulfide. 0.5 1.0Add the stearic acid. 1.0 2.0Add the zinc oxide and one-half the carbon black. 1.5 3.5Add the remainder of the carbon black. 1.5 5.0Add the sulfur. Clean the mixer throat and the top ofthe ram. 1.0 6.0Dump at 7 min. 1.0 7.0Subtotal 7.0Set the mill opening at
- 1.请仔细阅读文档,确保文档完整性,对于不预览、不比对内容而直接下载带来的问题本站不予受理。
- 2.下载的文档,不会出现我们的网址水印。
- 3、该文档所得收入(下载+内容+预览)归上传者、原创作者;如果您是本文档原作者,请点此认领!既往收益都归您。
下载文档到电脑,查找使用更方便
10000 积分 0人已下载
下载 | 加入VIP,交流精品资源 |
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- ASTMD31922009STANDARDTESTMETHODSFORCARBONBLACKEVALUATIONINNRNATURALRUBBERNR 天然橡胶 碳黑 含量 评定 标准 试验 方法 PDF

链接地址:http://www.mydoc123.com/p-514278.html