1、Designation: D5594 98 (Reapproved 2012)D5594 18Standard Test Method forDetermination of the Vinyl Acetate Content of Ethylene-VinylAcetate (EVA) Copolymers by Fourier Transform InfraredSpectroscopy (FT-IR)1This standard is issued under the fixed designation D5594; the number immediately following th
2、e designation indicates the year oforiginal adoption 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.1. Scope1.1 This test method covers
3、infrared procedures for determining the vinyl acetate content of EVA copolymers using pressedfilms (Procedure A) or molded plaques (Procedure B) and internal corrections for sample thickness.1.2 This test method is applicable to the analysis of EVA copolymers containing 0.5 to 55 % vinyl acetate exc
4、ept as specifiedin 1.3.1.3 Talc interferes with the 1020 cm1 vinyl acetate band. Resins containing SCBfor iii=1 TIL3XSP=620XEP=560PAU.PRESS .THEN ENTER THICKNESS (MILS). PREES AGAINVF0VF1=YEPYSPVF1=VF1/VF0VFW=VF1 * SLOPE VALUEVF2=VF2 + Y-INTERCEPT VALUEPRN VF2VF3=VF2+VF2DSSNXT IIIVF3=VF3/3OMDTHE AVE
5、RAGE PERCENT VA IS.PRN VF3 ENDEVA Copolymers Containing 0.56 Vinyl AcetateCRT LVACR “% VINYL ACETATE RANGE: 06 %”cr “CLEAN BEAM TO TAKE BACKGROUND”PAUSCBFOR IIICR “INSERT SAMPLE”PAUSCS RAS ABS DSSSXP=2100 XEP=1910ASS VF0=YEPYSPXSP=1040 XEP=970ASS VF1=YEPYSPVF2=VF1/VF0VF3=VF2 * 0.3648VF3=VF3+0.048CR
6、“PEAKHEIGHT 1020/PEAK HEIGHT 2019”VF2=CR “PERCENT (%) VINYL ACETATE=”VF3=NXT IIIENDFIG. A1.1 Macros for Calculating Vinyl Acetate Content of EVA Copolymers from FT-IR Spectra Using Molded PlaquesD5594 187A2. SUMMARY OF PYROLYSIS TITRATION AND SAPONIFICATION DATA FOR EVA COPOLYMER REFERENCEMATERIALSA
7、STM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are
8、entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn.Your comments are invited either for revision of this standard or for additional standards
9、and should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee
10、 on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or
11、 at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ A2.1 Summary of
12、 Pyrolysis Titration and Saponification Data for EVA Copolymer Reference MaterialsI II III IV V VI VII VIII IX XLab 1 x 0.68 1.11 2.80 4.15 4.78 5.84 9.34 14.54 18.46 27.62Pyrolysis S 0.038 0.018 0.045 0.115 0.078 0.111 0.140 0.201 0.071 0.088(DuPont) CV 5.59 1.62 1.61 2.77 1.63 1.90 1.50 1.38 0.38
13、0.32 + + + + 0 Lab 2 x 0.61 0.87 2.72 4.07 4.70 5 9.33 14.86 18.90 28.05Pyrolysis s 0.003 0.022 0.014 0.022 0.042 0 0.024 0.073 0.468 0.060(Toyo Soda) CV 0.49 2.53 0.51 0.54 0.89 1 0.26 0.49 0.25 0.21 + Lab 3 x 0.71 0.97 2.77 4.10 4.73 5.81 9.33 14.91 18.78 28.18Pyrolysis s 0.030 0.133 0.053 0.080 0
14、.127 0.040 0.074 0.233 0.100 0.269(DuPont) CV 4.22 13.71 1.91 1.95 2.68 0.69 0.79 1.56 0.53 0.95+ + 0 +Lab 4 x 0.80 1.02 2.82 4.19 4.81 5.92 9.46 14.98 19.00 28.27Saponification S 0.042 0.046 0.052 0.059 0.049 0.067 0.059 0.061 0.072 0.089CV 5.25 4.51 1.84 1.41 1.02 1.13 0.62 0.41 0.38 0.31+ + + + + + + + + +x 0.70 0.99 2.78 4.13 4.76 5.84 9.36 14.82 18.78 28.03sX 0.079 0.100 0.043 0.053 0.049 0.052 0.064 0.195 0.235 0.288CVX 11.29 10.10 1.55 1.28 1.03 0.89 0.68 1.32 1.25 1.03D5594 188
