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Our factory boron-10 supply is sufficient, have a price advantage. Chemical purchase, real-time quotation, welcome inquiry! 10B isotope Boron is a boron metal suitable for applications in neutron detection technologies.We focus on manufacturing optimized materials with an emphasis on stable boron isotopes. In addition, we offer a proven supply chain, consistent product quality and the ability to custom engineer products for your unique applications.Our experts can help you solve materials related problems in the demanding nuclear industry! Boron-10 used for commercial isotope enrichment. The boron we supply, its crystal structure improves processability, reduces dust, reduces problems, and is cleaner overall.

Photoinitiator TPO manufacturers believe that photoinitiator, also known as photosensitizer or photocuring agent, is a kind of ultraviolet (250 ~ 420 nm) or visible (400 ~ 800 nm) region to absorb a certain wavelength of energy, and produce free radicals, cations and other compounds. Thus, monomer polymerization, cross-linking and curing are initiated. Photoinitiator TPO manufacturers believe that photoinitiator is the key component of the photocuring system, related to the formula system under the light, oligomer and thinner can quickly change from liquid to solid, that is, crosslinking curing. Its basic functional characteristics are: the initiator molecule has a certain light absorption capacity in the ultraviolet (200 ~ 400 nm) or visible (400 ~ 800 nm) region. After direct or indirect absorption of light energy, the initiator molecule jumps from the ground state to the active excited state, resulting in an active fragment that can initiate monomer polymerization. These fragments can be free radicals, cations, anions or ionic radicals. Photoinitiator TPO manufacturers believe that according to the different active fragments produced, photoinitiator can be divided into free radical polymerization photoinitiator and cationic polymerization photoinitiator, among which free radical polymerization photoinitiator is widely used, followed by cationic photoinitiator. Anionic photoinitiators are rarely studied and no commercial application has been reported so far. Photoinitiator TPO manufacturers believe that in many practical photocuring systems, the formation of active fragments involves chemical interactions between the photoinitiator and other auxiliary components to promote the formation of active fragments and improve the initiation efficiency. These auxiliary components may be referred to as coinitiators sensitizers or photosensitizers depending on their specific functions. Initiator is an important part of the bimolecular photoinitiation system. If it is consumed by chemical reactions in the photoinitiation process, it is often called sensitizer. Photosensitizers can also act with photoinitiators to promote photopolymerization, but only the physical interaction of energy transfer occurs between them. The action principle is that the photosensitizer molecule absorbs light energy of large wavelength and transitions to an excited state. Energy is transferred from the excited photosensitizer molecule to the initiator molecule through intermolecular physics. In this way, initiator molecules that cannot absorb long-wave light energy indirectly transition from the ground state to the excited state, resulting in fragments with polymerization initiation activity. This process is also known as photosensitization. In the whole process, the photosensitizer is not consumed, just as a carrier of energy in the system repeatedly run. Photoinitiator TPO manufacturers believe that the more the absorption peak of photoinitiator overlaps with the main emission band of the light source, the higher the effective radiation enhancement degree of photoinitiator, and the better the effect of improving the curing speed of ink. The peak value of UV-LED is narrow and the radiation energy is concentrated in the narrow UV spectrum, so UV curing can only be concentrated in the narrow UV spectrum range. At present, the wavelengths of UV-LED curing light sources are mainly 365nm, 375nm, 385nm, 395nm and 405nm, and the emission bandwidth of each wavelength light source is about 10nm. However, most of the photoinitiators in the market have strong absorption at 300-370nm, but the optical absorption performance is poor in the range of more than 370nm, resulting in the emission spectrum of the light source in the UV-LED curing system and the traditional photoinitiator is different.

The water treatment industry is at the forefront of efforts to protect the water circulation around people and reduce or treat polluted water. At the same time, the competition in the water treatment pharmaceutical market is very big, water treatment in now is not only to become a variety of water treatment equipment introduced to use, but also plays a great role in water treatment pharmaceutical, water treatment pharmaceutical is now necessary in the future of sewage treatment, the prospect is very optimistic. Water treatment agents are specifically used in sewage clarification treatment, we all know that the treatment of water quality has many processes, so the classification of water treatment agents is very broad, including organic water treatment and inorganic water treatment agents, dedicated to scale removal agents. These different agents play a very important role in water treatment, can be said to be the most important part of water treatment. Water treatment agent is not only sewage flocculant precipitation effect is significant, in the treatment of sludge dewatering is also very good, and for industrial wastewater treatment, is also very effective. Industry will inevitably produce some polluted waste water, and water treatment agents can be treated these waste water, so that the sewage can also be purified, reused, save water resources, protect the water environment. Haonuo WATER treatment Pharmaceutical manufacturer is willing to work with environmental activists to maintain the clean water resources of human beings.

1. Photoinitiator and amine promoter EDAB are used together. 2, small smell, no poison, no environmental pollution. 3, cheap and easy to obtain, low cost. 4. Select photoinitiator with appropriate activity according to the type of prepolymer and monomer. 5, with good solubility and reactivity, less dosage, high initiation efficiency. 6, there should be a certain thermal stability, not decomposed below 85℃, there should be a long time storage stability. 7, it is best to use several photoinitiator compound, in different wavelength range can lead to curing, curing faster than a single photoinitiator. The above content is an overview of photoinitiator, action mechanism, performance requirements, common types, characteristics and principles of use. Photoinitiator is one of the indispensable components of the free radical UV photocuring reaction system. The type and dosage of photoinitiator have great influence on the photocuring behavior of the system, and play a decisive role in the sensitivity of the photocuring system.

There are many kinds of landscape water treatment technologies mainly divided into physical, chemical and microbial treatment technologies. Physical technology such as water change: you can dilute the concentration of impurities in the water by diverting water and changing water, so as to reduce the concentration of impurities. However, a large amount of clean water needs to be replaced, which is bound to reduce the waste of precious water resources in today's rather scarce water resources. Chemical methods (adding the algae fungicidal) water in the sun, can make the algae blooms in the water, be full of the whole surface, not only affects the water body and beautiful, and blocked off the sun, leaving many underwater preventing plant photosynthesis, release oxygen, the chemical changes of the pollutants in water, causing water quality deterioration, giving off a terrible stench, The water also turned black. So you add a chemical algaecide to kill the algae. As time goes by, drug-resistant algae will appear in the water, and the efficacy of algal exterminator will gradually decline. The interval of administration will be shorter and shorter, and the amount added will be more and more. The variety of algal exterminator will be changed frequently, and the pollution to the environment will also increase, which will affect our next generation. However, at the same time, the equipment cost of chemical method is high (circulation equipment, dosing device), and the operation cost is high (power consumption, drug cost). Although the effect is obvious, the maintenance time is short, the operation is easy, and it needs special management. Microbial treatment methods (ecological water treatment technology) a wide range of biological species, has a fairly complex physiological characteristics, in aquatic ecology, as the disintegrator of microbes, to the pollutants in the water (including organic matter, some heavy metals, etc.) to decomposition, absorption, become able to available to other living creatures, At the same time it also can reduce or eliminate the toxicity of some toxic substances and residues of aquatic plants can be heated into organic fertilizer, increase soil organic matter, and improved the soil, improve soil granular structure and physical properties, improve the water environment capacity, the increase of capability of self-purification of water body, but also reduced the water loss and soil erosion, inhibits the growth of plant pathogenic bacteria. Therefore, the use of water treatment agents for water treatment is efficient and environmentally friendly. Growth provides favorable conditions for the formation of biochemical effects, and the biochemical effects of microorganisms effectively remove organic and inorganic pollutants, which provides favorable conditions for the next water treatment link.

The company normally supplies photoinitiator TPO, TPO-L, reasonable price, quality are up to export standards. Welcome to negotiate business!

The development direction of photoinitiator focuses on hybrid type, visible light type, water-based type, macromolecule type and so on, as well as the use of dual curing mode, by the icing on the icing effect. 1, free radical - cation hybrid photoinitiator Free radical r & D system has fast curing speed but large shrinkage. And cationic light curing volume shrinkage, strong adhesion, curing process is not oxygen resistance polymerization, reaction is not easy to terminate, "post-curing" ability is strong, suitable for thick film light curing, but the curing speed is slow. Combining the advantages of the two, the free radical and cationic photoinitiator are mixed into a hybrid system, which can not only achieve free radical polymerization but also achieve cationic polymerization. More satisfactory results can be obtained when two or more photoinitiators are used together. 2, visible light initiator Fluorodiphenyl titanium (Irgacure 784) and bisfluorophenyl titanium (pentafluorophenyl) have outstanding photoinitiation activity, storage stability and low toxicity. Their absorption wavelengths have been extended up to 500nm, with large absorption in the visible region, which is particularly effective for visible light initiated polymerization curing of acrylates. And because of the photobleaching effect of titanium ceng light, the film yellowing index is small; And the depth of curing is good, which is conducive to the thorough curing of thick film. In acrylate system, the photoinitiation efficiency of 0.2% is 2~6 times higher than that of 2%Irgacure651. 3. Water-based photoinitiator (WSP) Aqueous photoinitiators were prepared by introducing functional groups of ammonium salt or sulfonate into common photoinitiators and making them dissolve with water. The main types are aryl ketones, including diphenylketone derivatives, thioxanthanone derivatives, alkyl aryl ketone derivatives, benzoyl derivatives, etc. 4. Macromolecule photoinitiator The ordinary photoinitiator is introduced into the macromolecule chain, and it becomes the macromolecule photoinitiator. It has good compatibility with the resin, does not migrate after curing, is not easy to volatilization, and reduces the odor. Macromolecular photoinitiators can be divided into four types: side chain cleavage type, main chain cleavage type, side chain hydrogen capture type and main chain hydrogen capture type. The side chain cleavage macromolecular photoinitiators are relatively successful at present. 5, double curing It is the combination of light curing and other curing methods, complement each other, highlights the advantages, has low temperature rapid curing, excellent stability, can avoid separation not curing, get good mechanical properties and stable size of the curing. The development of dual curing system shared by light curing and other curing methods is effective in overcoming the weakness of light curing adhesives, expanding the application range and improving the competitiveness. Other curing methods: heat curing, moisture curing, oxidation curing, anaerobic curing, etc.