Glue formula 1;

Ethylene-vinyl acetate * * * polymer 100 coumarone-indene resin 25 to synthesize paraffin resin 7 talcum powder 202,6-di-tert-butyl-p-cresol 1

This formula is a general variety, and its softening temperature is 72-80 C, which is below-40 C in brittle temperature and can be used for a long time at-40-60 C. It has good bonding performance for all kinds of materials, especially for some difficult-to-stick plastics.

Glue formula 2;

Ethylene-vinyl acetate * * * polymer 100 butyl rubber 30 butyl phenol resin 20 dibutyl phthalate 5 calcium carbonate 5 The matrix of this formula is low molecular weight ethylene-vinyl acetate * * * polymer with 28% vinyl acetate content. Butyl rubber is added to improve the flexibility and elasticity of the adhesive solution, improve the bonding strength and shorten the curing time.

Glue formula 3;

Vinylpyrrolidone-vinyl acetate * * * polymer 100 castor oil hydrogenation compound 4 water-soluble polyethylene glycol wax 2.5 epoxy resin10.62,6-di-tert-butyl-p-cresol10.4 This formula is a water-soluble hot melt adhesive. The matrix is an ethylene-vinyl acetate polymer modified by pyrrolidone. The molecular weight is larger and the bonding strength is higher. The compatibility with common wax compounds is poor, and the compatibility is greatly improved by adding water-soluble polyethylene glycol wax. Mainly used for bonding porous materials such as wood, ceramics, concrete components, fabrics, paper, etc., and can also be used as primer for other adhesives.

Second, the production method of acrylamide glue

Description: This formula is developed by many experts for many years, and the function of acrylamide building glue is pushed to the extreme by the latest * * * polymerization principle. From the modification of acrylamide, the viscosity, strength, water retention and scratch resistance are polymerized at one time, and multi-functional general construction is realized. The putty suitable for various base materials (including gypsum powder, fly powder, talcum powder, black cement, decorative white cement, 325-425 white cement, etc.) reduces the solid content by at least 3-4 percentage points compared with the traditional acrylamide glue, but the strength is the same, for example, the solid content of fly powder putty is1.5-1.6.

Preparation: First, dissolve the No.2 material and No.3 material with 50KG water, and then dissolve the No.4 material with 5- 10KG warm water.

1. Add 360KG of water into the reaction kettle, and when the temperature rises to 80℃, start the blender to add 40KG of 1 material and polyvinyl alcohol, and after the temperature rises to 95-98℃ for complete dissolution, add 600-800 g of hydrochloric acid and stir evenly (it can be discharged into the packaging barrel for later use), and then add the No.2 material (dissolved with 50KG of water first and then added).

2. Add No.3 material while injecting cold water (dissolve it with 50KG water first and then add it).

3. Add 50KG acrylamide while stirring. At this time, the total mass in the reaction kettle is 1000KG, the temperature is controlled at 46-48℃, the thermal dispersion method is 46-48℃, and the cold dispersion method is 48℃.

4. Measure the temperature, add No.4 material (dissolved in warm water first) and stir for 5 minutes. After stirring evenly, stop the mixer and get together at rest.

5. *** The polymerization time is about 60-70 minutes, and the materials in the reaction kettle begin to heat up and become thick. At this time, (1) the cold dispersion method starts to discharge the materials in the reaction kettle into a clean 50KG packaging barrel, and after cooling, it is dispersed into glue in proportion. (2) The thermal dispersion method allows the materials to heat up without discharging until the heating stops, which is about 58-60℃.

6. Suggestion: The solid content of ordinary 80 1 glue is about 1.6- 1.8%, about 5-6 tons of glue. The specific solid content depends on the enterprise standards of each unit, and the consistency can be adjusted by adding appropriate polyacrylamide.