A complete collection of various glue formulas

Various glue formulas include plastic formula, glue formula, water-soluble hot melt adhesive formula and so on.

1, plastic formula

Ethylene-vinyl acetate polymer:100; Gumarone-indene resin: 25; Synthetic paraffin resin: 7; Talcum powder; 202; 6- di-tert-butyl p-cresol: 1.

Formula performance: This formula is common, its softening temperature is 72-80℃, brittle temperature is below -40℃, and it can be used at -40-60℃ for a long time, and it has good adhesion performance to all kinds of materials, especially to plastics that are a little difficult to stick.

2, glue formula

Ethylene-vinyl acetate polymer:100; Butyl rubber: 30; Butyl phenolic resin: 20; Dibutyl phthalate: 5; Calcium carbonate: 5.

Formula performance: the matrix of this formula is low molecular weight ethylene-vinyl acetate polymer, with vinyl acetate accounting for 28%. Adding butyl rubber can improve the flexibility and elasticity of the glue solution, enhance the bonding strength and shorten the curing time.

3, water-soluble hot melt adhesive formula

Vinyl pyrrolidone-vinyl acetate polymer:100; Castor oil hydrogenation compound: 4; Water-soluble polyethylene glycol wax: 2.5; Epoxy resin:1.62,6-di-tert-butyl p-cresol: 1.4.

Formula performance: The matrix of this formula is an ethylene-vinyl acetate polymer modified by pyrrolidone. The molecular weight is too large and the bonding strength is high. The compatibility with common wax compounds is poor, and the compatibility is greatly improved by adding water-soluble polyethylene glycol wax. The key is to bond porous materials, such as wood, ceramics, concrete components, fabrics, paper and so on. It can also be used as a primer for adhesives.

Matters needing attention in glue configuration:

1. After preparation, there shall be no residual glue in the original barrel.

2. If the ratio is incorrect, the reaction will be insufficient, resulting in a decrease in adhesion.

3. If the glue is mixed in the wrong order, the glue will turn white or flocculate.

4. Do not mix water, alcohol, amine and other substances containing active H+ in the adhesive, which will lead to chemical reaction and loss of activity of the adhesive.

5. In order to improve its activity at low temperature, the adhesive can be put in a curing room at about 50℃ for preheating before use.

6, high temperature season, to ensure that the viscosity of the prepared glue remains the same (in order to prevent the increase of viscosity from causing the instability of the glue quantity, it is necessary to replenish the solvent in time).

7. Adhesives produced by different manufacturers should not be easily mixed. Please consult the manufacturer when mixing is needed.

8. In case of power failure, the prepared working fluid should be diluted with solvent and sealed in a cool and dry place.

9. When the glue is turbid or solidified, it can no longer be used.

10. Impurities in the working liquid must be filtered to avoid knife wires or foreign bodies in the finished product.