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PG-1 User’s Manual 1.2a/ENG

© Copyright 2003 FIBRO System AB, Sweden

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Summary of Contents for PG-1

Page 1: ...P A U L NG A R D N E RC O MP A N Y 9 1 0 4G U I L F O R DR O A D S U I T E H E MA I L G A R D C O A L T A N A C O M C O L U MB I A MD2 1 0 4 6U S A P H O N E 1 9 5 4 9 4 6 9 4 5 4...

Page 2: ...The PocketGoniometer Model PG 1 User s Manual...

Page 3: ...0 degrees 2 6 3 Contact Angles above 90 degrees 2 6 4 A Perfect Sphere 2 7 Drop Application with external tubing 3 Static and Dynamic Contact Angles 3 1 Static Contact Angle 3 2 Dynamic Contact Angle...

Page 4: ...on a specimen surface a contact angle is formed at the contact area By definition a droplet which beads up is non wetting and a contact angle higher than 90 degrees is displayed When the droplet wets...

Page 5: ...ecimen strips of up to 2 5 mm thickness Thicker specimens up to 12 mm can be tested if the specimen stage is removed in the following way a Remove the two screws accessible through the holes at the bo...

Page 6: ...spensing unit with the tip pointing upwards and tap gently on the dispenser to bring air bubbles inside the liquid to the top Push the plunger slightly forward to remove the air at the tip Rotate the...

Page 7: ...act two different situations may occur which can be described as a released droplet Figure 2 5 which is immediately transferred to the specimen upon contact with the surface a trapped droplet Figure 2...

Page 8: ...age sideways or simply reduce the droplet size when this can be done 2 6 Taking a reading First of all the protractor disk must be rotated into the correct position In general the objective is to matc...

Page 9: ...ay to measure the contact angle on a droplet shape like this is to a Rotate the protractor until centre line is at 90 degrees b Locate the point of reflection on the droplet at the edge of the contour...

Page 10: ...of reflection is aligned with the centre line PLEASE NOTE It is important the point of reflection to be positioned exactly at the centre line d Locate the top of the droplet and rotate the protractor...

Page 11: ...the dispensing tip c Fit the other end of the tubing onto the RED syringe tip and push the tip onto the syringe d Push the plunger inside the syringe to its forward position e Insert the free end of...

Page 12: ...PocketGoniometer model PG 1 3 3 The Dynamic Contact Angle function of time When the liquid spreads across or penetrates into the substrate the contact angle will change continuously This dynamic cont...

Page 13: ...re Reverse flow a Cut a specimen Section 5 and install it on the specimen stage Section 2 2 The specimen surface should be viewed slightly from above b Fill the manual dispenser with the preferred tes...

Page 14: ...of the specimen e g MD CD and 45 Specimens up to 12 mm thickness can be tested if the specimen stage is removed as described in Section 2 1 2 d Soft materials films or warping materials should be moun...

Page 15: ...your supplier for adjustment or repair of the lens No droplet or droplets of varying size appear at the dispensing tip Check for air bubbles inside the Manual Dispenser 8 Technical Specifications Spe...

Page 16: ...s of the carrier strip c Remove the release paper on top of the adhesive strip The top side is now the soft adhesive which can be used for multiple specimen strips d Cut a 14 15 mm wide specimen strip...

Page 17: ...16 PG 1 User s Manual 1 2a ENG Copyright 2003 FIBRO System AB Sweden...

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