Polyvinyl Butyral (PVB) is a product of polyethylene glycol and butadonal alcohol contraction under acid catalysis. Because PVB molecules contain long branches, they have good softness, low glass temperature, high tensile strength and impact strength. PVB has excellent transparency, good solubility, and good light resistance, water resistance, heat resistance, cold resistance, and film formation. It contains functional groups that can perform various reactions such as acetylene -based saponification reactions, vinegarization of hydroxyl, and sulfonic acidization. It has high adhesion with glass, metal (especially aluminum) and other materials. Therefore, in the fields of manufacturing safety glass, adhesives, ceramic flower paper, aluminum foil paper, electrical materials, glass reinforcement products, fabric processing agents, etc., it has become an indispensable synthetic resin material.
Physical and chemical properties:
Appearance: white powder
Following point: 165-185℃
Density: 1.08g/cm3
Refractive index: 1.488 (20℃)
Water absorption rate: not greater than 0.4%
Soft-duty temperature: 60-65℃
Glassification temperature: 66-84℃(depending on the degree of polymerization)
Solubility: It can be dissolved in most alcohol/ketone/ether/ester organic solvents, insoluble in carbon hydrocarbon solvents
Application
1. The obtained film is used to make the sandwich materials for safe glass. The safe glass is good and has a large impact strength. It is widely used in the aviation and automotive field.
2. It is used to create metal bottom coatings and cold -resistant paint with strong adhesion and water resistance with strong adhesion and water resistance.
3. It is used to make bright film flower paper, which can replace ceramic flower paper. The resin industry is used to create crusher plastic for non -ferrous metals such as steel and lead, which can be matched into a variety of adhesives. It is widely used for bonding of wood, ceramics, metals, plastics, leather, layer of pressure materials.
4. Used to make fabric treatment agents and gauze tube. The food industry is used to make toxic packaging materials.
5. The papermaking industry is used to make paper treatment agents. In addition, it can be used to make anti -contraction agents, rigid agents and other waterproof materials.
6. It can be used in the printing industry's soft printing, concave printing, convex printing, silk net printing, heat transfer, because it is dissolved in alcohol and non -toxic, the seal does not remain the odor, and can be used in the food industry to be sensitive to the odor of odor in the food industry. Such as tea/cigarettes. Because the resin is cedic type, it has excellent adhesion on the surface of the glass with a strong yin ion, which is particularly suitable for glass plate decoration silk marks.
Storage method: ventilation and low temperature drying; Store separately from food ingredients.
Packaging：15KG/BAG
Post time: Mar-31-2023