METHOD OF DETERMINING CONTACT ANGLE OF WETTING FIR-NEEDLES PRELIMINARILY PROCESSED WITH WATER STEAM

摘要

FIELD: chemistry.SUBSTANCE: method of determining a contact angle of wetting fir-needles, preliminarily processed with water steam, consists in the application onto the tested surface of a dosed drop of liquid, measurement of its dimensions and determination of the contact angle of wetting the fir-needles by formula.EFFECT: simplification of an increase of measuring accuracy of the contact angle of wetting fir-needles, preliminarily processed with water steam.1 dwg