china lithopone(b301 b311) pricelist

Polyvinyl Butyral Resin (PVB) is a solvent Resin synthesized by the acetal reaction of Polyvinyl Alcohol (PVA) and butyraldehyde in contact with coal.

Because Pvb Resin itself contains a lot of hydroxyl groups, it can bridge with some thermosetting resins to improve the properties of chemicals and film hardness.

Because PVB resin has the above excellent characteristics, it is widely used in adhesive safety glass intermediate film of automobile and building, rust cutting primer, baking paint, wood paint, printing ink, adhesive of electronic ceramics and printed circuit board, adhesive between metal and metal, between metal and plastic, modifier of hot-melt adhesive, iron dimension waterproof processing of textile, etc. A variety of new industrial applications are also continuously developed and applied.

The general characteristics of PVB are as follows:

The appearance of polyvinyl butyral (PVB) resin is white spherical porous particles or powder, and its specific gravity is 1:1; However, the filling density is only 0.20 ~ 0.35g/ml.

Thermal properties

The glass transfer temperature (TG) of polyvinyl butyral (PVB) resin ranges from 50 ℃ of low degree of recombination to 90 ℃ of high degree of recombination; The glass transfer temperature can also be adjusted by adding an appropriate amount of Plasticizer to reduce it below 10 ℃.

Mechanical properties

The coating of polyvinyl butyral (PVB) resin has good water resistance, water resistance and oil resistance (it is resistant to aliphatic, mineral, animal and vegetable oils, but not to sesame oil). PVB is widely used in printing inks and coatings because it contains high hydroxyl groups and has good dispersibility to pigments.

In addition, its chemical structure contains both hydrophobic acetal and acetic ACID groups and hydrophilic hydroxyl groups, so PVB has good adhesion to glass, metal, plastic, leather and wood.

Chemical reaction

Any chemical that can react with secondary alcohol will also react with PVB. Therefore, in many applications of PVB, it is often used with thermosetting resin to bridge and harden with the hydroxyl group of PVB, so as to achieve the characteristics of chemical resistance, solvent resistance and water resistance.

Of course, films with different characteristics (such as hardness, toughness, impact resistance, etc.) can be prepared according to different types of thermosetting resin and different mixing ratio with PVB.

Safety properties

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China's dominance in the titanium dioxide market is a testament to its robust industrial infrastructure and advanced chemical processing capabilities. According to industry reports, China accounts for more than half of the global titanium dioxide production, making it the largest producer and exporter of this pigment worldwide. This is largely due to the country's abundant reserves of titanium-bearing minerals, such as ilmenite and rutile, which are the primary raw materials for TiO2 production.

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{随机栏目} 2025-08-14 04:34 2480
  • In conclusion, China's role in the global TiO2 market is significant, particularly in the paints and inks sector. With its abundant resources, advanced manufacturing capabilities, and commitment to quality and sustainability, China will continue to be a major player in the TiO2 industry for years to come. By addressing environmental challenges and maintaining a focus on innovation, China can further strengthen its position as a leading producer and exporter of TiO2 in the global market.

    {随机栏目} 2025-08-14 02:59 1117
  • In conclusion, TiO2 plays a pivotal role in pigment manufacturing due to its unparalleled combination of brightness, stability, and safety. Its integration into industrial processes has led to significant advancements in product quality and sustainability while addressing growing concerns over health risks associated with certain materials. As technology evolves and new applications emerge, TiO2 is poised to remain an essential component for pigment manufacturers seeking to deliver high-performance products that exceed customer expectations and regulatory standards alike.

    {随机栏目} 2025-08-14 02:53 2077