Vinyl plastisol Molding, Film Forming and Fabric Coating
配方组成:
Dioctyl Phthalate/15 "Ferro" 5184 or Mark GS/3 Dioctyl Adipate/6 Pigment, A or d-Series ("Day-Glo"/15 "Geon" 121/53 Can be converted to an organosol by thinning with volital diluents such as V.M. & P. Naphtha or Xylene. Fusion temperature 350'F (177'C). A 6 mil thick fused film prepared from the above formulation with the D-Series pigment will show a moderate loss of color and brightness after 120 hours exposure in an Atlas Twin-Arc Weather-Ometer. The proper choice of light stabilizers is very important when the fluorescent pigments are used in a vinyl plastisol. the barium-cadmium type usually will either cause darkening of the fluorescent pigments during fusion, or very rapid darkening on exposure to direct sunlight. Much better light stability is obtained with the organic zinc type of stabilizers, of which the "Ferro" 5184 or Mark GS are examples. Any other types of stabilizers used should be checked against the above
配制方法:
for most plastisols the highest practical working pigment content is 20%. For organosols it is 30% to 35%. In calendered vinyl film containing "DAY-GLO" A or D-Series pigment, the use of Mark 398 as a light stabilizer is recommended along with the usual epoxy heat stabilizer.