FORD FLTM BO 160-2-2001 DETERMINATION OF THE REACTIVITY OF PUR FOAM COMPONENTS.pdf

1、 FORD LABORATORY TEST METHOD BO 160-02 Date Action Revisions 2001 04 02 Revised Editorial no technical change A. Cockman 1996 10 21 Printed copies are uncontrolled Page 1 of 2 Copyright 2001, Ford Global Technologies, Inc. DETERMINATION OF THE REACTIVITY OF PUR FOAM COMPONENTS Application This metho

2、d is used to determine the reactivity of polyols and isocyanates, used to produce PUR foams. The polyol compound is being tested with the appropriate isocyanate compound and the isocyanate compound with the polyol. Apparatus Required Laboratory Stirrer With an approximately 60 mm diameter propeller

3、and a rotational speed of 1380 revolutions/minute. Temperature Controlled Water Bath Capable of maintaining 23 C +/- 1 C to condition the components. Analytical Balance Stop Watch Ventilated Fume Cabinet Standard Carton Cups Capacity approximately 850 cm3, diameter 89 mm, height 137 mm. Disposable G

4、loves Protection Glasses Conditioning and Test Conditions All test values indicated herein are based on material conditioned in a controlled atmosphere of 23 +/- 2 C and 50 +/- 5 % relative humidity for not less than 24 h prior to testing and tested under the same conditions unless otherwise specifi

5、ed. FORD LABORATORY TEST METHOD BO 160-02 Page 2 of 2 Copyright 2001, Ford Global Technologies, Inc. Procedure 1. Fill a carton cup with the tare weight of component A and B specified in the relevant material specification. 2. Immediately after adding component B, stir the mixture for the time perio

6、d defined in the relevant material specification. 3. After stirring, the foaming process shall be observed and the reaction profile determined with the stop watch. Note: During all activities in connection with foam components, the operator must wear gloves and protection glasses. All activities mus

7、t be carried out within the ventilated fume cabinet. Definitions: Creaming Time: Time from start of stirring until beginning of volume rise. Rising Time: Time from start of stirring until end of volume increase. Tack Free Time: Time from start of stirring until the material is tack free. Determinati

8、on of Foam Density of the Cup Test Twenty minutes after start of stirring the excessive foam material shall be cut flush with the rim of the cup. The weight of the foam material shall be determined and the density calculated. Chemicals, materials, parts, and equipment referenced in this document must be used and handled properly Each party is responsible for determining proper use and handling in its facilities.