ASTM D817-1996(2004) 乙酸丙酸纤维素和醋酸丁酸纤维素的标准试验方法

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【英文标准名称】:StandardTestMethodsofTestingCelluloseAcetatePropionateandCelluloseAcetateButyrate
【原文标准名称】:乙酸丙酸纤维素和醋酸丁酸纤维素的标准试验方法
【标准号】:ASTMD817-1996(2004)
【标准状态】:现行
【国别】:
【发布日期】:1996
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:D01.36
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:地板覆盖物;乙酸纤维素;颜料;肥皂;纤维素;高聚物;抛光剂;塑料;试验;涂料;皮革;树脂
【英文主题词】:apparentacetyl;ash;celluloseacetatebutyrate;celluloseacetatepropionate;celluloseesters;color;freeacidity;haze;hydroxyl;limiting;partition;sulfatecontent;viscosity;
【摘要】:Ashcontentgivesanestimateoftheinorganiccontentofcelluloseestersamples.Thepresenceofhighlevelsofinorganiccontent(ash)canbedetrimentaltothemeltstabilityandopticalclarityofacelluloseesterinmeltprocessingoractasapotentialsourceofinsolubleswhentheesterisusedinsolution.1.1Thesetestmethodscoverproceduresforthetestingofcelluloseacetatepropionatesandacetatebutyrates.Theseestersmayvarywidelyincompositionandproperties,socertainoftheprocedurescanbeusedonlyintherangesofcompositionwheretheyaresuitable.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thetestproceduresappearinthefollowingsections:SectionsAcetylPropionylorButyrylContentsAcetylContent,ApparentAcidity,FreeAshColorandHazeHeatStabilityHydroxylContentHydroxylContent,PrimaryIntrinsicViscosityMoistureContent-SulfurorSulfateContentViscosity-LimitingViscosityNumber