Pre-gelled Starch Suspensions

Ingredients of a pre-geUed starch composition are shown in Table 5.5. 

Dry wood flour (60 mesh soft wood) Dry wood flour (80 mesh soft wood) 6 0.125 14 

Baking powder is added to elevate the number of open cells in the final structure by introducing a source of carbon dioxide released by heat and water. Glycerol is added to produce a product that releases better from the mold and to produce a smoother surface on the finished product. 

Several other modified compositions have been presented, using in addition bentonite clay and recycled paper pulp (12). The starch-wood flour mixture, with any included additives, is added to the 

If the product is to be molded by classic injection methods the material must be rather thinner. The material can also be rolled into green sheets and molded, extruded and made into dry pellets for other processes. 

---