7 application fields and characteristics of nano calcium carbonate

Source: "Yang Yuli.
Preparation of modified nano-calcium carbonate and its application in lubricating oil [D].
Zhejiang University"? Nano-calcium carbonate refers to a calcium carbonate product with a particle size between 1-100nm, with a surface The effect, quantum size effect and macroscopic quantum tunneling effect make it show different physical and chemical properties from ordinary calcium carbonate, as well as special functions in application
.
? 1.
Rubber? The rubber industry is the most important application market for nano calcium carbonate
.
Nano calcium carbonate is used as a filler in rubber, and the amount is large
.
The most widely used in rubber products is chain-shaped nano-calcium carbonate, followed by cube-shaped nano-calcium carbonate
.
? In the rubber industry, nano-calcium carbonate is mainly used in rubber products such as tires
.
The addition of rubber products to nano-calcium carbonate can significantly improve the elongation, tear resistance and compression deformation, etc.
, and the hardness of the product can be adjusted by increasing or decreasing the amount of calcium carbonate
.
2.
Plastics The application of nano-calcium carbonate in the plastics industry is already very mature
.
Among them, ordinary calcium carbonate plays a filling role, and nano-calcium carbonate is mainly used in high-end plastic products
.
Cube-shaped nano-calcium carbonate is the most widely used in plastics, with low oil absorption, and the average particle size is generally required to be in the range of 0.
1-0.
5μm
.
? Modified nano calcium carbonate has outstanding advantages in plastic products: improve the heat resistance, hardness and rigidity of the product, improve its processing performance and smoothness, etc.
; it can also improve the toughness, transparency, and aging resistance of the film; it can also improve Physical and mechanical properties of plastics
.
? 3.
Ink? In the ink industry, nano-calcium carbonate has become the most widely used filler material
.
In the ink industry, modified nano-calcium carbonate needs to be used, and spherical or cubic nano-calcium carbonate is the most widely used
.
? Nanometer calcium carbonate in the ink applied to advantage, mainly in: high gloss, good stability
.
my country has made great progress in the research of nano-calcium carbonate for ink
.
4.
Sealants? The market demand for structural adhesives and sealants is increasing.
Nano-calcium carbonate mainly plays a role of filling and strengthening in silicone sealing limbs
.
The most commonly used is cubic nanometer calcium carbonate
.
? The application of nano calcium carbonate can greatly reduce the cost, and can improve the processing performance and mechanical properties of the product
.
5.
Coatings.
Nano calcium carbonate as a pigment filler is a market with great development potential
.
In coating applications, nano-calcium carbonate is generally required to be cube-shaped or spindle-shaped
.
? Nano calcium carbonate used in coatings has many advantages, such as making the coating delicate, uniform, and high whiteness, and it can also play a role in preventing sedimentation
.
These advantages make nano calcium carbonate widely promoted and used in the coating industry
.
6.
Papermaking? In the papermaking industry, nano-calcium carbonate is used as a filler, which has many advantages, such as high light shielding, good brightness and whiteness, uniform paper quality and smoothness
.
Nano calcium carbonate can also be used in various high-grade packaging papers after special coating treatment
.
7.
Lubricant? Nano calcium carbonate particles are used as lubricant additives, which can form a protective film containing calcium carbonate on the surface during friction
.
Nano calcium carbonate will not corrode metals and will not pollute the environment.
It can also neutralize the sulfuric acid produced by combustion in the use of heavy oil with high sulfur content, and has a certain cleaning effect
.