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Study on the curing parameters of gas catalytic combustion infrared curing powder coatings
Time of Update: 2021-09-29
Studies have shown that when using catalytic infrared to cure this kind of powder coating, as the curing temperature increases, the time required for the complete curing of the coating is reduced, which is consistent with hot air curing.
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The difference between dispersant and surfactant
Time of Update: 2021-09-28
The main difference between a dispersant and a surfactant is that a dispersant can improve the separation of particles in a suspension, while a surfactant is a substance that can reduce the surface tension between the two phases of a substance .
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Powder coating yellowing and countermeasures
Time of Update: 2021-09-28
Table 2: Effect of adding anti-yellowing agent 180°C 200°C 220°C b valueb valueb value Polyester/epoxy1.
Figure 3: At the same temperature of 200℃, the HAA sample plate on the right is added with 1% anti-yellowing agent, which is whiter than TGIC .
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Is the film-forming properties of water-based coatings film-forming additives determined by emulsions or additives?
Time of Update: 2021-09-28
When the amount of emulsion or water dispersion is large and the Tg of the polymer is high, the amount of the film-forming assistant should be large.
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Research on Application of High Acid Value Polyester Resin in Dry-mixed Matting Coating
Time of Update: 2021-09-11
This may be because the increase of TMP increases the molecular weight and spatial network structure of the high acid value resin, thereby increasing the matting paint The cross-linking density of the film hinders the erosion of water molecules on the coating surface, improves the boiling resistance, and reduces the color difference; on the other hand, because the dry blending extinction is based on the difference in curing and shrinkage of the fast and slow components, microscopic discontinuities are generated.
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Have you solved the delamination problem of water-based coatings?
Time of Update: 2021-09-03
shortcoming:It has an impact on gloss, and there will be haze and turbidity in the varnish; poor resistance to strong solvents; poor leveling and anti-sagging effects; due to the need for good dispersion to achieve the best anti-settling effect, Therefore, it is difficult to use for post-addition.
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Application of all-water ink in intaglio printing on plastic film
Time of Update: 2021-08-13
The quality of the ink, the drying system of the printing press, the production of printing plates, the surface characteristics of different films, the operating methods of the employees, the adjustment of operating habits and the subsequent lamination requirements must be organically connected together in order to make good use of the ink and achieve the best Good condition .
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The opening rose 155.6% on the first day!
Time of Update: 2021-08-04
Once the annual production of 280,000 tons of water-based acrylic emulsion production base construction project is put into operation, it will help the company increase its market share and achieve the goal of annual sales exceeding 600,000 tons in the next three years and 1 million tons in the next five years .
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Meijia’s 200,000-ton liquid epoxy project is changed, and the supply of raw materials for Swanson will not be affected
Time of Update: 2021-07-30
2. Fundraising to build liquid epoxy resin projectOf the 210 million yuan raised by Meijia, 160 million yuan will be used for the construction of a new environmentally friendly liquid epoxy resin (phase I 50,000 tons) production line project with an annual output of 200,000 tons, and 50 million will be used to purchase raw materials.
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The construction of the Badfu Jiangmen project has started, containing 150,000 tons/year of water-based alkyd + epoxy resin!
Time of Update: 2021-07-28
5 billion yuan, 150 acres of land, environmental major annual aqueous acrylic emulsion, water-based environment and the annual output of 300,000 tons adhesives waterborne alkyd epoxide resin, paint and other aqueous 150,000 tons , is put into Achieve an annual output value of 3 billion yuan; the second phase plans to invest 3.
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Advantages of water-based inks in the printing of plastic products
Time of Update: 2021-07-28
In the printing process, it will not change the color due to the change of viscosity, and it will not be like the ink, because of the waste produced when the thinner is added in the printing process, which greatly improves the qualification rate of the printed product and saves One of the cost advantages of water-based inks is to reduce the cost of solvents and reduce the appearance of waste products .
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ACEMATT® matting powder is used for the matting of water-based coatings (Part 1)
Time of Update: 2021-07-28
For water-based coatings with usual film thickness and no special performance requirements, the particle size of ACEMATT® grades should be referred to when selecting matting powder .
When ACEMATT® matting powder is added to high-gloss water-based coatings, the viscosity may decrease, but after a period of storage, the post-thickening is obvious .
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[Literature Interpretation] How to prepare high-performance epoxy emulsion with narrow particle size distribution and good storage stability, this article tells you!
Time of Update: 2021-07-27
Through the chemical modification method, it is not difficult to prepare a water-based epoxy emulsion with stable storage and small particle size .
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The 160,000-ton water-based emulsion and coating solvent project was signed in Yilan Development Zone!
Time of Update: 2021-07-27
Recently, the 160,000-ton water-based emulsion and paint solvent project invested and constructed by Heilongjiang Chunwei Chemical Co.
The signing ceremony for the 160,000-ton water-based emulsion and paint solvent project of Chunwei Chemical was held in the conference room on the third floor of the Economic Development Zone .
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Difficulties often encountered when choosing water-based dispersants
Time of Update: 2021-06-28
Problems caused by water-based resin-free color paste How to choose a dispersant1.
For water-based systems, the stability of the viscosity of the color paste is a better evaluation index, and the color paste with good stability tends to stabilize the pigment better.
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Several preparation methods of pseudo-boehmite with high specific surface and large pore volume
Time of Update: 2021-06-21
The advantage of this method is that it can obtain pseudo-boehmite with relatively uniform crystal grains, relatively concentrated pore size and large pore volume; the disadvantage is that the industrial implementation of pH swing is difficult, and the increase in product pore volume will also lead to its specific surface area.
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Introduction to the performance and application of commonly used additives in ink coatings
Time of Update: 2021-06-21
Coating aids include conventional organic anti-settling agents, thickeners, leveling agents, foam control agents, wetting and dispersing agents .
2. Application of organic anti-settling agent:In order for the anti-settling agent to function effectively in the coating, it should be properly dispersed and activated .
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The mildew and corruption of water-based paint, its causes and scientific treatment!
Time of Update: 2021-06-16
Mildew and decay are caused by the combined action of rot and mold to make the water-based paint have a strong peculiar smell, accompanied by blackening, precipitation, flocculation, and agglomeration .
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How much do you know about the water separation of water-based coatings?
Time of Update: 2021-05-31
The coating industry refers to the separation of solid pigments and fillers in coatings from the dispersion system as "water separation", or sinking. It means that after the paint is made, in the sto
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Roosevelt signed a strategic cooperation agreement with Zhejiang Xiaguang Paint
Time of Update: 2021-05-07
Xiaguang " The development concept of "quality and reputation, innovation and value drive the future" coincides with Roosevelt, and is also one of the opportunities for in-depth cooperation between the two parties.
