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Service > Cleaning agent

Cleaning agent

Cleaner is a big category, variety, including inorganic and organic cleaning cleaning two categories. The difference between the organic and inorganic detergent cleaning agents Briefly, the organic compound is a carbon-containing cleaning agents made the cleaning agent, inorganic Qing Shen agent is a compound made of carbon-cleaning agents, they belong to the inorganic material. Classification cleaners are also many countries are different, we usually divided into aqueous, semi-aqueous, non-aqueous cleaning agent three categories.
1. Definitions:
Cleaning agent (water-based)
A surfactant (e.g. sodium alkylbenzenesulfonate, fatty alcohol sulfate) and various additives (e.g. sodium tripolyphosphate), formulated as adjuvants, and dirt on the surface when the washing, the aqueous solution can be reduced surface tension and improve the decontamination effect substances. By product morphology into solid detergent, liquid detergent. Solid detergent largest output, said detergent comprising finely powdered, granular and hollow particulate wait habits. There are between detergent paste between the two, also known as washing paste. Various types of synthetic detergent have different production processes, of which the most complex solid detergent. Countries in the world production of hollow granular solid detergent, using spray drying tower, the main steps have prepared slurry, spray drying, aging and packaging breeze. Liquid detergent manufacturing simple, just the surfactant, adjuvants and other additives, as well as treated water, can be mixed into the mixer.
Cleaner (half water-based)
The fine granular adsorption of various additives weak alkaline cleaning products new synthetic drug, the use of natural interfaces active grain as raw materials, with a variety of active agents and fungicides, polishing agents, import agents and unique light penetrated factor the preparation of high-tech environmental technology, is a versatile and efficient integrated environmental cleaning care products. Is a modern new decontamination products, unique decontamination, versatile, no side effects on the human skin. Contains a unique sanitizer with Microsoft when friction with cleaning light more quickly and thoroughly remove all types of serious pollution caused by the activity of stubborn dirt and abrasive grains in order to assist. Huigou, heavy dirt, cement dirt, sealant dirt, metal scratches, rust, gummy substance, tea stains, beverage stains, rubber hammer India, shoes scratches, wax stubborn stains, marks aluminum, wood marks, square Georgia marks, watermarks, shoe prints, printing ink and other dirt, environmental protection, without prejudice to the brick, not to hurt the hand.
Cleaning agent (solvent type)
The hydrocarbon solvents, halogenated hydrocarbon solvents, alcohol solvents, ether solvents, ketone solvents, ester solvents, phenolic solvents, a mixed solvent composition.
2. Classification
Cleaner use can be divided into industrial cleaning agents and civilian cleaning agent.
Industrial cleaning agents are degreasing cleaner, wax cleaning agent, liquid crystal cleaning agent, degreasing (normal cleaning), rust cleaning agents, aluminate off other species besides more.
Civilian cleaning agents are detergent, hand sanitizer, soap, detergent, all-around cleaning agents.
Solvent cleaning agents can be divided into different water-based cleaning agent and an organic solvent cleaners.
Water-based cleaning agent is solvent is water, such as degreasing cleaner, detergent, washing powder and so on.
The organic solvent cleaning solvents as organic solvents such as trichlorethylene, acetone (nail water), the day that water, open water, white oil.
⑴ water-based
Water is the most important cleaning agents, with other any cleaning lotion irreplaceable role and status. Ordinary water is very easy to get from nature, water has a strong solvency and dispersing power. However, the surface tension of water, in use, the need to add a surfactant to reduce surface tension, increase surface wettability. In general industrial cleaning, acid, alkali and water with the more common, some metals with water to join the anti-rust agent; precision and ultra-precision industrial cleaning. Most require water into pure water. Usually measure the resistivity of the water purity. The semiconductor industry requires 18MΩ / cm or more. The TN-type LCD production 10MΩ / cm can be, there are some sectors of the bacterial content is very strict.
In recent years, severe water shortages in parts of China, for clean water challenges. Some cities already prohibit the use of ordinary water washing, but can only use recycled water or atomized water saving devices. In precision industrial cleaning, the preparation of pure water expensive. Washing bound to heating and drying, increase the number of rinse station. Energy consumption, running costs are usually higher than the solvent wash; in addition, in the past a lot of waste water containing chemical agents and dirt directly discharged without treatment. Some also smuggle a highly toxic heavy metal, causing serious pollution of the environment, the need to increase sewage treatment facilities.
⑵ semi-water-based
Semi-water-based cleaning agent, also known as quasi-water-based cleaning agent, is such as alcohols, organic hydrocarbons from high-boiling solvents and active agent components. Typically containing 5% to 20% of the water, generally non-flammable, but warm cleaning water content properly controlled, may produce combustion phenomenon. Semi-water-based cleaning solvent wash a little different, it's cleaning principle is peeled and removed, instead of being dissolved. In order to prevent peeling of the oil has been re-attached to the object to be cleaned, the cleaning fluid to be continuously circulated, and increase water separator. Semi-aqueous cleaning effect is usually very good, but higher operating costs, recovery of waste can not be recycled, reused, including COD (chemical oxygen demand) is high, the need for wastewater treatment.
⑶ Solvent
Solvent-based cleaning agent means a water-insoluble organic solvent. Precision industrial cleaning using a nonaqueous cleaning agent is mainly a hydrocarbon (oil), chlorinated hydrocarbons, fluorinated hydrocarbons, brominated hydrocarbons, alcohols, silicone oil, terpenes and other organic solvents.
The main measure of solvents are KB value (Kauri-butanol value), AP (aniline point), SP solubility parameter), surface tension, density, viscosity, boiling point, flash point, exposure concentration and other parameters. KB value is very high, which is a strong solvent solubility, is not necessarily a good cleaning agent.
A good precision industrial cleaning agents must meet the following conditions:
① chemical stability, not easy to react with the object to be cleaned occurs;
② small surface tension and viscosity, infiltration;
③ low boiling point, can be dried on their own;
④ no flash point, non-flammable;
⑤KB value should not be too high, to avoid compatibility to be cleaned;
⑥ low toxicity, safe to use;
⑦ non-ODS and low-GWP (global warming potential), and environmental protection.
If you do not consider the above-mentioned article 7. Best cleaning agent is CFC and TCA. Their good chemical stability, long-term preservation is not bad; for most metals, plastics, paint had no effect dissolution phenomenon does not occur, no flash point, low toxicity, safe to use; surface tension, infiltration, cleaning ability; low boiling point, evaporation speed, the workpiece can be self-cleaned and dried, generally does not require drying, which is widely used in various industrial cleaning. But the only drawback is the destruction of the ozone layer, thus being progressively disabled.
Dirt for industrial cleaning chemicals, generally should meet the technical requirements described below. For different cleaning purposes and cleaning object cleaning agents, these requirements can be emphasized or choice.
⑴ clean dirt faster, scale solution thoroughly. Cleaning agent itself has a strong reaction to the dirt, dispersed or dissolved scavenging ability, work in a limited period, can be more thoroughly remove dirt.
⑵ damage to the cleaning target should be within the limits of the production licenses, and the metal may cause corrosion of a corresponding suppression measures.
⑶ cleaning agents used cheap and easily available, and based on the localization; lower cleaning costs, not to cause excessive consumption of resources.
⑷ cleaning agent on the biological and environmental non-toxic or low toxicity, the resulting exhaust gas, waste water and waste, should be able to be treated to comply with national regulations.
⑸ cleaning under mild conditions, to try not to depend on the force the mouth of strengthening the conditions attached, such as temperature, pressure, mechanical energy and so does not need to ask too much.
⑹ cleaning process is not cleaning object surface residue under insolubles, no new pollution collapse, does not form a cover of new harmful to the subsequent process, without compromising the quality of the product.
⑺ does not affect the cleaning process and on-site health foam and odor.
3. Comparison
(A) Metal Corrosion
Pickling of boilers, central air conditioning and other heat exchange equipment generates inevitable corrosion damage, especially hydrogen permeation injury, make metal crystal structure is damaged, leading to serious embrittlement and hydrogen induced cracking, safety of heat exchange equipment Run potentially dangerous.
Environmental cleaning agent used is biodegradable bio-acid, through the national authorities test the metal corrosion rate was measured by national standards 1/20, even lower than the corrosion of the metal in the water, when acid metal corrosion rate hundredth, or even liquid cleaning agent on the skin is not damaged.
(B) the cleaning effect
Pickling process due to fear of acid corrosion of equipment cleaning personnel, equipment damage, and therefore are afraid for a long time to clean every time, it is likely to cause the situation is not completely clean, despite some cleaning effect, but will soon have a scale issues.
Environmental cleaning agent in addition to relying on its own corrosion-free advantage, scale solution efficiency is very high, clear liquid per kg 4 kg scale, and most of the cleaning work only 2-3 hours to complete and improve the cleaning efficiency.
(C) the toxicity and environmental impact
Pickling acid waste because of its corrosive and toxic decomposition inhibitor caused great harm to the organism, serious environmental pollution, acid is highly toxic and harmful pollution cleaning.
The main component of the use of advanced biological agents it is biodegradable and non-toxic, non-corrosive and non-flammable, such as mass scale does not contain harmful substances, cleaning liquid can be discharged directly.
(Iv) cleaning method
Pickling of metal corrosion. The operator must go through rigorous training, such as improper operation, likely to cause serious damage to the equipment, or even scrapped. Very easy to use, 2-3 after a simple training after using an open circulation pumps and buckets device cycle can be achieved from the bottom to the top of the device thoroughly cleaned.

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