Photoinitiator is also known as photocuring agent and photosensitizer. The chemical name of photoinitiator 184 is 1-hydroxycyclohexyl phenyl ketone, which is an efficient UV photoinitiator, widely used in copy varnishes, plastic coatings, wood coatings, adhesives, lithographic inks, screen printing Inks, flexo inks and electronics. The project with an annual output of 3,000 tons of photoinitiators is an important part of our company's construction of a green life circular economy industrial chain. Since the establishment of the project in April 2019, our company has cooperated with Chongqing Chengyang Chemical Co., Ltd. to overcome difficulties and complete the main construction of the project, equipment installation, commissioning and commissioning as soon as possible.
Due to the particularity of the flake alkali industry, the explainer of the polyacrylamide industry has flake alkali. It is a must-have solution for chemical practice rooms and can be used as a detergent. At present, the surrounding structure of the Bohai Bay has special requirements for the location of enterprises. Caustic alkali acute inhalation poisoning, inhalation of potassium hydroxide dust or smoke, can cause chemical upper respiratory tract inflammation. flake alkali. Enamel, leather, dyes and agricultural surfaces. It is used as a desizing agent for cotton in the weaving, printing and dyeing industry. Tungsten smelting, rayon, rayon and soap manufacturing. Also, in the production of dyes, plastics, pharmaceuticals and organic intermediates, the regeneration and manufacture of old rubber. Explore nature and production processes. After the reaction, it becomes lime slurry (calcium hydroxide solution, slaked lime), and solid particles of sodium bicarbonate (or sodium carbonate) (concentrated solution can also) participate in the lime slurry. In order to ensure the purity of the product sodium hydroxide, the lime slurry needs to be in excess.
The products are used in wire and cable polyethylene cross-linking agent, shoe ethylene-vinyl acetate cross-linking agent, styrene initiator, natural rubber vulcanizing agent, EPDM rubber, nitrile rubber, silicone rubber, polyurethane rubber and other synthetic rubber vulcanizing agents , unsaturated polyester curing agent, flame retardant additives, etc.
In addition, with the development of water-based photoinitiators, cationic photoinitiators, composite photoinitiators and mixed photoinitiators, the performance of UV inks has been further improved, and the scope of application has been further expanded.
Alternatively, the terminal-NCO-based prepolymer is put into water, emulsified by adding an emulsifier, and then the solvent is removed. The internal emulsification method introduces hydrophilic groups into the polyurethane molecular chain. Currently widely used types are one-component, two-component and modified types. The prepolymer is first synthesized, and the raw material for preparing the prepolymer is a water-soluble polyether alcohol (such as polyethanol or EO and PO copolymers containing 10%-40% ethylene oxide blocks), and then the -NCO is turned off. The mechanism is that the evaporation rate of water is much greater than the reaction rate of NCO with OH and H2O. Although there is too much water in the system, it is still mainly the reaction of NCO and OH. The polymerization of acrylate monomers in aqueous polyurethane dispersions is the main route for the production of such coatings. UV-curable waterborne polyurethane coatings are prepared by introducing double bonds into the molecular structure and adding a photoinitiator, and curing is caused by electron beams or ultraviolet light during construction.
Pakistani Prime Minister Imran Khan was confirmed to be infected with the new crown virus on the 20th, causing concern. Two days ago, he had just received the first dose of the new coronavirus vaccine from China National Pharmaceutical Group. Attempts by some to fan suspicions about a Chinese vaccine have been refuted by Pakistani officials. Pakistani President Arif Alvi tweeted on Monday: "The Covid-19 vaccine is a necessary (anti-epidemic) measure. There are two types of the vaccine, and it takes several weeks for protection to develop. In most cases, the new coronavirus vaccine will definitely protect, even in other cases, it can significantly reduce the severity of the virus infection and improve the survival rate. Beware of those who create doubts. (International Online)
On September 6, the report attracted market attention.Photoinitiator 784
The team of Wang Xiangxi, a researcher of the Chinese Academy of Sciences, cooperated with Peking University and Kexing Holdings, and published a paper on the international research platform medrxiv on September 5, saying that two doses of Kexing’s new crown vaccine (Kerlefu) were administered. ) The third dose boosted after 6 months, which can rapidly induce a more comprehensive antibody type, showing good cross-neutralization effect on Alpha, Beta, Gamma, Delta and other mutants.
The third chapter analyzes the production, output value (ten thousand yuan), growth rate, market share and future development trend of polymerization initiators in major global regions from the perspective of production, mainly including the United States, Europe, Japan, China, Southeast Asia and India.
The company's main products have two series. The company is the main material supplier of PCB photoresist in the world, and it is also one of the few domestic companies that can produce photoresist raw materials with energy. The company occupies an absolute leading position in the PCB dry film photoresist initiator market.Photoinitiator 784 (FMT) supplier
The company's LCD photoresist initiator series products have broken the monopoly of BASF and other multinational companies on such products and filled the domestic gap. The domestic leader of special chemicals for photoresist has established good and stable cooperative relations with world-renowned photoresist manufacturers such as Changxing Chemical in Taiwan Province and Asahi Kasei in Japan. The company's main products include two series of photoresist initiators and photoresist resins, breaking foreign monopoly and filling domestic gaps.
Some customers can reflect that the dark mode curing technology is thorough, but the light colors are wet. Since our company's customers are equipped with mercury lamps, mercury and other short-wave ultraviolet rays and ozone, some light-colored students have a large direct contact area with ozone due to thinness and gaps, and the photoinitiator in the ink has no curing social reaction and is oxidized by ozone. Repeated exposure will not dry.