RAPID DETERMINATION OF THE NON-VOLATILE CONTENT OF LIQUID COATINGS USING A HOT-WIRE TECHNIQUE

A METHOD IS DESCRIBED WHICH ALLOWS THE NON-VOLATILE CONTENT OF CLEAR AND PIGMENTED LIQUID COATINGS TO BE DETERMINED IN A TOTAL ELAPSED TIME OF LESS THAN SEVEN MINUTES (INCLUDING SAMPLE HANDLING, HEATING AND CALCULATION TIME). THE PRINCIPLE USED INVOLVES THE PASSAGE OF A CONTROLLED CURRENT THROUGH A COILED RESISTANCE WIRE WHICH HAS BEEN DIPPED INTO THE COATING TO BE TESTED. THE SPEED WITH WHICH A RESULT MAY BE OBTAINED MAKES THIS METHOD IDEALLY SUITED TO FOLLOW THE COURSE OF POLYMERIZATION REACTIONS. A SIMPLE APPARATUS IS DESCRIBED WHICH MAY BE CONSTRUCTED FOR THE HEARING STEP OF THE METHOD, AS WELL AS A SUITABLE WEIGHING CONTAINER. /AUTHOR/

• Supplemental Notes:
  • Vol 40, No 526, PP 522-527, 6 FIG, 3 TAB, 1 PHOT, 4 REF
• Publication Date: 1968-11

Media Info

• Serial:
  • Journal Paint Technology

Subject/Index Terms

• TRT Terms: Chemical reactions; Coatings; Coils (Electromagnetism); Electric wire; Liquids; Measuring instruments; Polymerization; Resistance (Electricity); Weighing devices
• Old TRIS Terms: Hot wire method; Non-volatile content
• Subject Areas: Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00216800
• Record Type: Publication
• Files: TRIS
• Created Date: May 26 1994 12:00AM