Solid glue stick - raw material with PVP is the best
PVA Chinese name is polyvinyl alcohol, which is a widely used water-soluble polymer with properties ranging between plastic and rubber. PVA is an important chemical raw material for the manufacture of polyvinyl acetals, gasoline resistant pipes and vinylon synthetic fibers, fabric treatment agents, emulsifiers, paper coatings, adhesives and the like. Irritating, harmful to the body after inhalation, ingestion or absorption through the skin, irritating to eyes and skin. PVA can only use formaldehyde as a thinner to make a solid glue, which is very harmful to the human body.
PVP chemical name is polyvinylpyrrolidone, which is a water-soluble polymer compound with excellent performance and wide application. It is a high-tech, high value-added fine chemical product. PVP has a strong bonding ability and is easily adsorbed on the surface of colloidal particles to protect the colloid. PVP has excellent physiological inertia and biocompatibility, no irritation or allergy to skin and eyes, and is practically non-toxic.
?PVP solid glue stick features:
It is a cost-effective solid glue stick with the viscosity in the top three in the world, non-toxic, odorless, colorless, fine and smooth. The raw materials used are of pharmaceutical grade and contain no formaldehyde; the application feels smooth and smooth; it is less sticky; the quality is much higher than similar products.
The person in charge told us that only the Chinese people in the world are deeply victimized by PVA solid glue. Most countries in the world, even small countries such as Vietnam and Malaysia, strictly prohibit the production and sale of PVA as raw material. The PVA is a solid glue for raw materials. With the continuous improvement of people's understanding, it will definitely withdraw from the historical stage in the near future.
How to tell if the solid glue is made of PVP raw material?
The field staff provided a simple and easy way: the light, the colloid appeared like jade, and the translucent state was PVP. If it is white and yellow, opaque, it is not a complete PVP solid glue.
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