Raw and auxiliary material proportioning and production process of binder (mastic)

The proportion of raw and auxiliary materials and production process of high-strength and quick-drying series starch adhesives used by a single unit are based on the advantages of absorbing existing adhesives, providing a simple production process, without heating, affected by the four seasons, A series of cold high-strength and quick-drying adhesives with short reaction time, stable product quality, long retention period, fast drying speed, and strong adhesion, and their preparation methods.
The starch binder used by a single unit is achieved by the following measures: In the reactor, stir well and add sodium hypochlorite or hydrogen peroxide or potassium permanganate for 5-30 minutes; dissolve the caustic soda in cold water and add it to the reactor. Stir for 20-60 minutes; borax is then dissolved in hot water, added to the reactor, stirred for 3-5 minutes, and finally an appropriate amount of defoamer is added and stirred for 2-3 minutes.
The composition of each component by weight: Unit: kg
Water: 1000 Defoamer: Appropriate amount of starch: 150-350 Caustic soda (over 95% content): 18-28
Strong Catalyst: 6-15 Borax: 4-7
Sodium hypochlorite (10% content) 40-100 (potassium permanganate: 3-10) (27.5% hydrogen peroxide: 6-15)
The specific processing process is as follows:
a. Add water to the reactor and stir the starch evenly.
b, the strong catalyst is added to the reactor and stirred evenly;
c. Add sodium hypochlorite or hydrogen peroxide or potassium permanganate to the reactor and stir for 5-30 minutes;
d, the caustic soda dissolved with 3-5 times cold water, added to the reactor, stirred for 20-60 minutes;
e, the borax with 5-10 times boiling water dissolved into the reactor, stirring 3-5 minutes;
f. Finally, add an appropriate amount of defoamer and stir for 2-3 minutes.
The starch adhesive produced by this formula and process has a simple process, and does not need to be warmed. It takes only 30-90 minutes from the feeding to the finished product. The adhesive carton is fast drying, high strength, no running, no moisture absorption, no Pantothenics, tested, initially sticked for 1-1.5 minutes, completely sticked for 5-10 minutes, destroyed the fibers for 30-50 seconds, and its physical and chemical indicators were superior to those of the battolite and other starch formulations made by other formulations and processes. It can be widely used in corrugated cartons for export goods packaging, corrugated containers for food packaging, corrugated cartons for fruit and vegetable packaging, and corrugated cartons for middle and high-grade goods.
The analysis and comparison of the technical indicators of the adhesive with common starch binders and tecocyanine are as follows:

The process flow for cold high-strength and quick-drying starch adhesives is as follows (stirred state):
Tap water - starch - strong catalyst - oxidants (sodium hypochlorite, hydrogen peroxide, potassium permanganate) 5-30 minutes caustic soda solution 20-60 minutes borax solution 3-5 minutes defoamer - finished use raw materials and recipes:
1. Starch (small table starch, corn starch, potato starch or potato starch);
In the production of a starch binder, different starches are used, and the adhesive has different transparency, adhesive strength, viscosity, gelatinization temperature, and the like. As long as you have a good grasp of the properties of starch and the role and properties of other chemical raw materials in the production of adhesives, you can make an ideal adhesive. The main maize production in northeastern China is dominated, while the other northern regions are dominated by potatoes, and Guangdong and Guangxi are dominated by cassava. Wheat starch is generally a by-product of agricultural and sideline products processing, and the market price is low. In the choice of starch, can be combined with the actual situation around the place, select the lower price of starch production of adhesives. Different physical and chemical indicators of starch and related data are as follows:
Different industrial grade starch physical and chemical indicators and related data