1 Penetrant
Also known as wetting agent, yellow transparent viscous liquid, freezing phenomenon at low temperature, neutral pH value 6-8, the aqueous solution becomes turbid when heated above 50 ℃, it can be clarified when the temperature is lowered, and the cloud point is stable at 40-50 ℃ Sex is good. It is resistant to acids, alkalis, hard water and heavy metal salts. It does not precipitate with various dyes and has no affinity with fibers. It can be easily washed away after use. It can reduce surface tension or interfacial tension, and promote the diffusion of liquid onto a solid surface or into the solid. Used in industries such as textile, printing and dyeing, paper making, leather making, etc. It is also used in the compounding of latex, and used in pesticide adjuvants and mercerizing aids. Sometimes it can also be used as emulsifier, dispersant and stabilizer. The dosage is usually determined by the penetration depth and color development.
2 Swire Oil
Also known as Turkish red oil, a type of sulfonated oil. It is made from castor oil and sulfuric acid and then neutralized. Made from other vegetable oils or some fish oils, also known as Taikoo oil, slightly yellow to dark brown liquid. It is widely used in industries such as textile, paper making, leather making, metal processing, etc. It is also used as a pesticide emulsifier. Persimmon oil can also be substituted in the glue formula.
3 Stabilizer
Generally used to increase the stability of solutions, colloids, solid mixtures, etc., the amount of 0.1% ~ 3% is appropriate. Stable performance agents are used to slow down the reaction rate, maintain chemical balance, reduce surface tension, and prevent light, heat, precipitation, and oxidation. Used in resin, plastic, rubber, synthetic fiber, pesticide, dye, adhesive, food, metallurgy and other industries. It can be divided into retarder, buffer, heat stabilizer, light stabilizer, processing stabilizer and so on.
4 Antistatic agent
There are three main types of substances that can prevent the accumulation of static electricity to overcome the static charge generated by the mutual friction of fiber materials: â‘ external additives; â‘¡ external permanent additives; â‘¢ internal additives. Commonly used antistatic agents are metal powdered carbon black inorganics, silicon compounds and surfactants. As an external antistatic agent, a surfactant can be used, and other inorganic substances can also be used. Their antistatic effect is better than that of an external antistatic agent. However, when the amount of internal antistatic agent (such as carbon black) added is large, it will reduce the inherent volume resistance of the resin and affect the basic physical properties such as the transparency of the resin. Where water and alcohol glues are generally not added.
5 Polyacrylamide
Thermoplastic resins made from acrylamide polymerized by low-temperature aqueous solution, usually in powder or jelly form, are mainly used as additives for drilling mud, yarn treatment agents, mineral flotation liquid additives and soil improvers. Usually better than starch (resin). The dosage is often determined by the viscosity and pH.
6 Glycerin
The scientific name is glycerin. It is a colorless, odorless and sweet viscous liquid. It is also a plasticizer in glue. Density 1.2613, boiling point 290 ° C (decomposition), melting point 17.9 ° C, miscible with water in any proportion, can reduce the freezing point of water, has great hygroscopicity, slightly soluble in ethanol and ether, insoluble in chloroform, when dehydrated Produce diglycerol, polyglycerol, etc. It produces glyceraldehyde, glyceric acid, etc. during oxidation, and propylene glycol when it is reduced. It is used to manufacture nitroglycerin, alkyd resin, and ester gum. , Tobacco, textiles and other hygroscopic agents.
7 Defoamer
Also known as anti-foaming agent, anti-foaming agent. Usually 0.5% to 5% can reduce the surface tension of water, solution suspension and other substances to prevent the formation of foam or reduce or eliminate the original foam. Commonly used are saturated alcohols (such as octanol), fatty acids and their esters (such as tributyl phosphate, diethyl phthalate), higher fatty acid metal soaps, sulfonated oils (such as Turkish red oil) and silicone oils, etc. , Used for alcohol production, papermaking, rubber making, printing, compound latex, paint, refined sugar beet, boiler water and sewage treatment.
8 Antiseptic fungicide
Agents that have a killing, inhibiting or preventing the formation of microorganisms or molds are usually used less in winter, and generally not used for 24 or 48 hours. It is generally stable to light, heat, oxidation, etc. It is used in food, beverage, medicine, wood, vaccine, etc. In addition, it is used in the latex industry to prevent natural coagulation or deterioration caused by the action of microorganisms, etc. Latex anticoagulant is used to prevent latex from coagulating.
9 Urea
Also known as urea or carbon amide, it is a non-electrolyte and is an auxiliary resin for glue. A large number of colorless crystals exist in the urine of humans and mammals, with a density of 1.335 and a melting point of 132.7 ° C. It decomposes when the heating temperature exceeds the melting point. It is soluble in water, ethanol and benzene, and almost insoluble in ether and chloroform. It is used as raw materials for fertilizers, animal feed, explosives, stabilizers and urea-formaldehyde resins. It is made of ammonia and carbon dioxide under high temperature and pressure.
10 Levelling agent
Surfactant that can help the dye to color evenly during the dyeing process. The chemical industry often calls it a dispersant. The main function is to delay the coloring rate of the dye, so that all the fibers can be evenly colored. Use less in summer or less viscosity as much as possible.
11 Sodium methyl cellulose
Referred to as CMC-NA, it is a white powder. Effective substance ≥50%, viscosity> 80 MPa (25 ° C), pH value 8 ～ 10, chloride ≤25% substitution degree (DC) ≥0.45, moisture ≤8%, strong hygroscopicity, soluble in water to produce salt-resistant and Viscous solution with certain stability. Resistant to 300 ℃, insoluble in ethanol, ether and chloroform. Not subject to oil and fire, stable to light. Used as dispersant, emulsifier, thickener, adhesive, sizing agent. Used as an enema in medicine. It is made from cellulose and methyl chloride or dimethyl sulfate, or from cellulose and methanol in the presence of dehydrating agent. If the viscosity is small, the amount can be increased by about 5%; if the pH is high, the ratio can be increased by an appropriate amount.
A basket is a container that is traditionally constructed from stiff fibers and can be made from a range of materials, including wood splints, runners, and cane. While most baskets are made from plant materials, other materials such as horsehair, baleen, or metal wire can be used. Baskets are generally woven by hand. Some baskets are fitted with a lid, while others are left open on top.
Baskets serve utilitarian as well as aesthetic purposes. Some baskets are ceremonial, that is religious, in nature.While baskets are usually used for harvesting, storage and transport, specialized baskets are used as sieves for a variety of purposes, including cooking, processing seeds or grains, tossing gambling pieces, rattles, fans, fish traps, and laundry.
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