PU oil repellent: scientific application and wide impact
In modern industry and daily life, oil repellent, as an important chemical, plays an indispensable role.
Among them, PU (polyurethane) oil repellent has become the leader among many oil
repellents with its unique performance and wide application fields.
1. Definition and characteristics of PU oil repellent
PU oil repellent is an oil repellent based on polyurethane material, which has the characteristics of
colorless transparency, stable chemical properties, and non-volatile. It can provide excellent
oil resistance in various coatings and ink systems, while maintaining the stability of ink and improving
printing quality. In addition, PU oil repellent also has good lubricity, high temperature
resistance, low temperature resistance, oxidation resistance, aging resistance and other characteristics,
which enables it to perform excellent performance in a variety of application scenarios.
2. Application fields of PU oil repellent
Packaging and labeling: In the packaging and labeling industry, PU oil repellent is widely used in
water-based inks. It can
significantly enhance the oil resistance of inks and prevent inks from
being contaminated by grease during printing, thereby ensuring that the printed products are brightly
colored and the patterns are clear. This is of great significance to improving the visual
appeal and market competitiveness of products.
Commercial printing: The commercial printing field has extremely high requirements for the quality and
stability of printed products. PU oil repellent meets this demand by improving the
adaptability of ink and printing efficiency. It not only ensures the bright colors and clear patterns of printed
products, but also extends the shelf life of printed products and prevents the ink
from fading due to oxidation or aging.
Industrial coatings: In industrial coatings, PU oil repellent also plays an important role. It can reduce the
tension of the coating surface and eliminate coating defects such as shrinkage holes,
thereby improving the uniformity and gloss of the coating. In addition, PU oil repellent can also enhance
the lubricity and wear resistance of the coating, making the coating more durable.
Automotive industry: In the automotive industry, PU oil repellent is also used to make certain specific
lubricants or protective agents. These products can reduce friction and wear between
automotive parts and improve the performance and service life of the car. At the same time, they can also
prevent grease from contaminating and corroding automotive parts and protect
automotive parts from damage.
3. The scientific principle of PU oil repellent
The reason why PU oil repellent can perform well in various application scenarios is mainly because of its
unique chemical structure and properties. Polyurethane materials themselves have
excellent elasticity and wear resistance, which enables PU oil repellent to form a tough protective film in
coatings and inks. This protective film can effectively prevent grease from penetrating
and contaminating coatings and inks, thereby maintaining the stability of inks and the clarity of printed products.
In addition, PU oil repellent can also interact with other components in coatings and inks to form a more
stable chemical structure. This interaction can not only improve the oil resistance of
coatings and inks, but also enhance their weather resistance and chemical resistance, so that they can
maintain excellent performance in various harsh environments.
4. Conclusion
In summary, PU oil repellent, as an important chemical, plays an important role in packaging, labeling,
commercial printing, industrial coatings, and the automotive industry. It can not only
improve the quality and stability of printed products, but also enhance the lubricity and wear resistance
of coatings, and protect automotive parts from damage. With the continuous
development of science and technology, the application field of PU oil repellent will continue to expand,
bringing more convenience and benefits to people's production and life.
However, we should also note that the use of chemicals needs to be cautious. When using PU oil repellent,
relevant safety operating procedures and environmental protection requirements
should be strictly followed to ensure that no harm is caused to the environment and human health.
At the same time, we should also continue to explore and innovate to develop more
environmentally friendly, efficient and safe oil repellent products to contribute to the sustainable
development of mankind.
