Solid glue stick has the advantages of easy use, good bonding performance, and long shelf life. It is a commonly used adhesive in the field of student stationery and office supplies. Among them, glue sticks with PVP as the main raw material are widely used around the world because of their safety and environmental protection characteristics.

PVP solid glue stick mainly uses polyvinylrolidone K90 as the main component. PVP K90 has both powder and liquid form. The solid is white or off-white powder; the solution is colorless or slightly yellow clear liquid, easily soluble in water, the solution is clear, non-toxic, and harmful to skin and eyes. No stimulation. It has excellent solubility, biocompatibility, physiological inertness, film-forming properties.

Basic information to know PVP K90 quickly:
Name: PVP K90
CAS NO.: 9003-39-8
Appearance: White or pale yellow powder or colorless or slightly yellow clear liquid
Molecular Formula: (C6H9NO)N
EINECS Number: 1312995-182-4
Molecular Weight: 1,000,000 – 1,500,000
Warranty Period: 3 Years

PVP K90 has the ability to protect the body and the ability to combine various organic and inorganic compounds, and is relatively stable to acids, salts and heat. It has application properties such as adhesion, film-forming, dispersion and thickening.

‌The uses of PVP K90 liquid on glue sticks mainly include increasing the adhesion, plasticity, viscosity and weather resistance of the glue stick. In the field of solid glue, PVP K90, as an important component, can significantly improve the physical properties of solid glue. Through reasonable preparation methods and adjusting ingredients, PVP solid glue products that meet different needs can be prepared. Specifically, the functions of PVP K90 include:

‌Increase adhesion‌: PVP K90 can enhance the adhesion between the glue stick and other substances, allowing the glue stick to better fix objects when used.
‌Improved plasticity‌: This feature makes the glue stick easier to deform during use and adapts to different pasting needs.
‌Increase viscosity‌: By adjusting the content of PVP K90, the viscosity of the glue stick can be controlled, thereby affecting its fluidity and adhesion during use.
‌Enhanced weather resistance‌: The addition of PVP K90 can improve the durability of the glue stick, allowing it to maintain good bonding results under various environmental conditions.

In summary, the application of PVP K90 liquid in glue sticks not only improves the performance of the glue stick, but also broadens the scope of use of the glue stick, making it more practical and reliable in daily life and industrial applications‌.

In addition, PVP also has many applications in other fields. PVP-K90 can be used as a surface coating agent, dispersant, thickener and adhesive in pigments, printing, ink, textile printing and dyeing, color picture tubes, and can improve the adhesion of the adhesive to metal, glass, plastic and other materials. Adhesion performance. In addition, PVP is also widely used in emerging high-tech fields such as separation membranes, medical polymer materials, photo-curable resins, photo-curable coatings, optical fibers, laser discs, etc. PVP-K90 is widely used in the cosmetics industry. It is extremely suitable as an excipient in shampoo, hair care, beauty and skin care, hair dye, shampoo, lipstick, sunscreen, toothpaste, etc.

PVP-K90 is also often used in the coating of medicines and seeds. It can prevent moisture, light, mask odor, control release, etc. in medicine packages. It can prevent seedling diseases and insect pests, drought resistance, and cold protection in seed coatings. , reduce the amount of pesticides and other effects.

Unilong Industry Co., Ltd. Supply different grades of PVP K90 like industrial, pharmaceutical, cosmetic grades to meet your application. Our production capacity can reach 4000tons per year. Our product has a very wide range of uses in the field of pharmaceutical preparations and is one of the three new pharmaceutical excipients advocated internationally.