Research and development III of the most popular l

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Research and development of lotion resin Waterborne UV curable coatings and inks (III)

2. Monomers and prepolymers are the main organic components that give coatings excellent properties. Odorless, five colors, low viscosity and low cost are the basic requirements for the development of monomers

at present, although domestic monomers are gradually replacing imports and have certain price competitiveness, there are quality problems such as incomplete esterification, polymerization problems that have not been well overcome, large changes in product viscosity, and low purity. It is still necessary to further improve the quality, increase market competitiveness, and provide advantageous raw materials for the rapid development of UV curable coatings

the production level of prepolymer of most manufacturers is not high. Epoxy, acrylate and polyurethane are produced, but there are problems such as unstable quality, high viscosity, wide molecular weight distribution and difficult to guarantee performance. At present, many prepolymers are imported

Yingli company has recently completed the development of a series of raw materials and products with independent intellectual property rights, such as monomers, prepolymers, oil-based and water-based coatings. With a good price performance ratio, Yingli company can well meet the green environmental protection requirements and excellent mechanical performance requirements of various UV oil-based coatings and water-based coatings

(III) coating production technology with high quality, low price, no odor and environmental protection

due to the following outstanding characteristics, water-based coatings have become the mainstream products of coatings:

1) it is easy to spray by adding water and thickener to adjust the rheological properties and viscosity of the system

2) there is no monomer and water is used as diluent, which can solve the problems of toxicity and irritation of volatile components (VOC) and room temperature crosslinking agents. The moisture can be volatilized naturally or quickly removed by continuous microwave drying equipment

3) without monomer, it can reduce the shrinkage of the cured film and improve the adhesion of the film to the substrate

4) combined with microwave and infrared drying technology, the drying speed is faster. Before curing, the x-axis can be obtained as the load coordinate to the non viscous dry film, which can be directly repaired, contacted and stacked

5) it does not contain volatile organic compounds, is not flammable, is safe in production, and is especially meaningful for spraying

6) the cured film has high impact resistance, tensile strength, wear resistance and toughness. If necessary, an ultra-thin cured film can be obtained

7) common coating equipment, such as roller coating, drenching coating and spraying, can be used, and the coating equipment is easy to clean

1. Yingli has developed a new generation of water-based coating products:

I. technological breakthrough of high-performance and multi-functional lotion and performance introduction of Yunguang brand water-based series coating products

Yingli company has successfully developed a high-performance lotion synthesis technology with novel structure and multiple functions. The unique performance advantages of this lotion are reflected in its blended Yingli Yunguang brand coating

the test results show that all performance indexes of Yingli Yunguang brand coating have exceeded the national premium product standard, and the content of organic volatile in the coating is far lower than the standard of China green environment certification (green ten ring certification), without irritation. The paint surface has excellent sensory effect and elastic hand feel

the Yingli Yunguang brand interior wall coating with normal lotion content was sampled and sent to the National Chemical Building Materials Testing Center for determination. The results showed that the paint film had no abnormality after more than 70000 times of scrubbing. This super scrubbing resistance is the best evidence of its strong adhesion and excellent film surface compactness, chalking resistance, high elasticity and wide applicability

Yunguang coating not only has good elasticity, but also has 340% elongation at break, which is an important symbol to measure the level of automobile design and manufacturing in developed countries; And it has good anti pollution property, and its anti pollution index is only 6; It has good acid and alkali resistance, salt spray resistance and water permeability; After 500 hours' artificial anti-aging test, the paint surface of the interior wall coating is still in good condition, without foaming, falling off, cracking and powdering. It can be used as the exterior wall coating. It can integrate a variety of functions that are difficult to achieve at the same time - pollution resistance, high elasticity, acid resistance, salt spray resistance, aging resistance, common use of internal and external walls, crack prevention and repair, and paint skin feel. At present, it has not been seen. Therefore, we gave him a good name "winlight": many problems, one "paint" to solve (win); If the color is new, it will always have "light" We believe that the comprehensive performance advantages of Yunguang coating, such as environmental friendliness, wear resistance, easy washing, anti pollution, anti aging, anti crack and skin feel, will be recognized by the coating industry and loved by the majority of consumers

recently, Yunguang coating competed with many well-known brands at home and abroad in the bidding of Chongqing Olympic Center project. Yunguang coating won the bid with its excellent cost performance. The marketing network and engineering promotion all over the country have shown the excellent quality of Yunguang coating

2). In cooperation with Acer printing company, Yingli company has successfully developed the experimental power of four-color silk water-based ink extraction and its key component, water-based resin, on the test piece. Through the continuous microwave drying technology, the curing speed of water-based UV coating is equal to that of oil-based UV coating, With environmental protection and high efficiency, the melt temperature can be reduced by 20 ℃, and the coloring effect and performance exceed those of similar imported products. This technology will greatly promote the development of Waterborne UV coloring coatings and inks in China

3), water-based and oil-based leather finishing agents

Yingli company successfully developed oil-based and water-based light curing finishing agents for artificial leather and natural leather substrates for the first time, and applied for the national invention patent. The leather finishing agent developed by Yingli company not only has the advantages of energy saving, environmental protection, safety and high efficiency, but also overcomes the defect of rough surface after heat curing finishing agent treatment, making the leather have the characteristics of high surface gloss, bending resistance, low temperature resistance, good elasticity, dry and wet rubbing resistance, air permeability and good leather feel, which can improve the grade of leather

(to be continued)

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