1. Water-based adhesive uses water as a solvent and emulsifies acrylic or polyurethane resin through special emulsification equipment.
Advantages: Using water as solvent, it is cheap, environmentally friendly, generally non-toxic and odorless, the glue itself is non-flammable, has a wide range of solid content and viscosity, can use high-concentration high-molecular-weight materials, and can control penetration and wettability. Water glue can achieve good water resistance and bonding strength.
Disadvantages: long curing time, curing time can be shortened by heating in a dryer, weak water resistance (can be improved by adding a curing agent), poor initial tack, unsatisfactory bonding strength to materials with low polarity and difficult to bond, and freezing at low temperatures. , causing the fabric to shrink, causing the paper to wrinkle or curl, will be contaminated by some metal utensils, corrode some metals, dry slowly, and have poor electrical properties.
Features: It has a wide viscosity range and can be sprayed, rolled and scraped. The construction environment is good and the machinery and equipment can be cleaned directly with water.

2.Oil-based adhesive is made by using oil-based solvents (toluene, DMF, ketone, etc.) as the solvent to dissolve acrylic acid or polyurethane.
Advantages: Using organic solvents as solvents, it has short curing time, low energy consumption, good water resistance, wide drying rate and opening time, produces high initial bonding strength or viscosity, and has better bonding strength than water glue for difficult-to-bond materials with low polarity. .
Disadvantages: not environmentally friendly, the solvent is easily volatile, the lower the solid content of the oil glue, the greater the smell. The glue itself is flammable, and the strong smell can easily irritate the respiratory tract. Some organic solvents are also toxic (such as benzene, toluene, xylene, which can cause Cause serious damage to the cardiovascular system,). After applying glue to the non-porous and dense material surface, you need to wait for the solvent to evaporate completely before bonding, otherwise it will easily bubble.
Features: Wide viscosity range, can be sprayed, rolled, and scraped. The construction environment must strictly control safety factors such as ventilation and open flames. Machinery and equipment must be cleaned with organic solvents in time after use, so the factory must be far away from residential areas.

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