White latex / polyvinyl acetate adhesive
Synthesis of vinyl acetate from acetic acid and ethylene
It can cure at room temperature, cure faster, and has higher bonding strength. The bonding layer has good toughness and durability and is not easy to age.
Features
This product is a water-soluble adhesive, which is a thermoplastic adhesive prepared by polymerization of vinyl acetate monomer under the action of an initiator. Usually called white latex or PVAC emulsion, chemical name polyvinyl acetate adhesive, is made of acetic acid and ethylene to synthesize vinyl acetate, adding titanium dioxide (low-grade addition of light calcium, talcum powder, and other powder). A milky white thick liquid.
Product Usage
The disadvantage of polyvinyl acetate emulsion adhesive is poor water resistance and moisture resistance, easy to absorb moisture in humid air, creep phenomenon will occur when used at high temperature, and the bonding strength will decrease. It will be easy to freeze under -5 °C, so that the emulsion will be exposed. damage. This product uses a polymer compound obtained by polymerizing polyvinyl alcohol and formaldehyde as a modifier to improve the water resistance and freeze-thaw resistance of the emulsion, and expands the application range of the emulsion. White latex can be cured at room temperature, fast curing, high bonding strength, and the bonding layer has good toughness and durability and is not easy to age. Can be widely used in bonding paper products (wallpaper), as well as waterproof coatings and wood adhesives. Bonding of wooden materials. It is water as dispersing agent, safe, non-toxic, non-combustible, easy to clean, solidified at room temperature, has good adhesion to wood, paper and fabric, high bonding strength, colorless and transparent rubber layer after curing, toughness Good, does not pollute the adherend; the emulsion has good stability and the storage period can be more than half a year. Therefore, it is widely used in printing and binding and furniture manufacturing. It is used as a binder for paper, wood, cloth, leather, ceramics, etc. It can also be used as a modifier for binders such as phenolic resin and urea-formaldehyde resin for the production of polyvinyl acetate. Latex paint, etc.
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