配方类型:

ADHESIVES

配方说明:

Starch Paste

配方组成:

Cold Water/10.0 cc
Keep stirring in water bath (or on moderate heat) till completely
hydrolized. This will take 5 to 10 minutes. Be careful not to burn.
Super Starch Paste
To the above regular paste add
Methyl cellulose Gum 2% solution/15.0 cc
PVPVA #635/3.0 g
Propylenoglycol/0.1 cc
Powdered Corn Starch/8.0 g
Boiling water/75.0 cc
HCl (10%)/0.2 cc

配制方法:

The super paste will dry to a harder film and is moisture resistant when dry; will not curl paper.
Caution: the basic paste must be stirred while hot (at 190' to 220'F) till completely hydrolized. If hydrolysis is not complete the paste will develop lumps when cool. If too thick, can be thinned with cold water, added slowly, with constant mixing.