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In today's agricultural production, pesticide spray adjuvants are very popular. Pesticide spray auxiliaries are divided into two categories, namely active auxiliaries, including surfactants, wetting agents, oil-based, adhesives and penetrants; special-purpose spray auxiliaries, including buffers or acidifiers or pH changes Agents, water quality regulators, anti-drift agents, thickeners, blending agents. There are a few things to pay attention to when choosing pesticide spray additives:Pesticide ...
The role of softener1. Supplement the natural oils lost by natural fibers in scouring and bleaching processes, making the hand feel more ideal.2. Attach to natural fiber or synthetic fiber to improve smoothness and strength, and improve hand feeling.3. Improve the wearability of fabrics through certain characteristics of softeners.In order to achieve the above-mentioned effects, softeners are generally grease-like smoothness and hand-feel substances. Adhering to the fiber surface can reduce the ...
Silicone softener originated in the 1950s, and its development has gone through four stages.The first generation of silicone softener: the mechanical emulsification method is used to emulsify dimethyl silicone oil, but since the silicone oil itself does not contain active groups, it is not fast enough to bind to the fabric and is not washable. The effect of single use is not ideal, so it is rarely used as a softening agent now, but dimethyl silicone oil emulsion is still widely used in other fie ...
OverviewSilane coupling agent is a kind of low molecular organosilicon compound with special structure. Its general formula is RSiX3, where R represents amino, mercapto, vinyl, epoxy, cyano and methyl propionyloxy groups. Groups, these groups and different matrix resins have strong reactivity, X represents a group that can be hydrolyzed, such as halogen, alkoxy, acyloxy and so on. Therefore, the silane coupling agent can not only interact with the hydroxyl in the inorganic substance but also wit ...
Silicone oil cleaning agent product use:This product can be used to clean silicone rubber and plastic parts, and can also be used to clean clothes. It is suitable for spraying and ultrasonic cleaning process. Clothes, aluminum and soft metal surfaces, aluminum trays for medical equipment, phosphate-sensitive utensils in the laboratory, sensitive aviation scientific materials, pharmaceutical process equipment, medical equipment and electronic components, etc. Has a good cleaning and anti-rust eff ...
Dear customers and friends:The Dragon Boat Festival on the fifth day of the fifth month of the lunar calendar is one of the traditional folk festivals in my country. The Dragon Boat Festival is also called Duanyang Festival, Wuri Festival, May Festival, Five Days Festival, Ai Festival, Duanwu Festival, Chongwu Festival, Chongwu Festival, Noon Day, Summer Festival, and Pu Festival. It was originally a summer festival to eradicate the plague. Later, the poet Qu Yuan of the Chu State committed suic ...
According to the composition of the defoamer, it can be divided into many types, such as silicone defoamer, polyether defoamer, silicone polyether defoamer, mineral oil defoamer, tributyl phosphate defoamer, silicon Oxyane defoamer, n-butanol defoamer, etc. These are relatively common defoamers, and there are some uncommon ones, so I won't introduce them.If it is divided by industry, there are even more. Each industry has corresponding defoamers, such as water treatment defoamers, paper defoamer ...
Amino silicone oil is currently widely used in the soft finishing of cotton, linen, wool, silk and chemical fiber fabrics. After its finishing, the fabric has the advantages of softness, smoothness, plumpness, good resilience, durability, wrinkle resistance, scratching, and washing resistance. However, the general amino silicone oil has three major disadvantages: â‘ There is no hydrophilic group in the structure, the finished fabric has water repellency or low water absorption, and the hydrophili ...
In order to overcome the above shortcomings, the commonly used method is to modify its chemical structure. Modification methods include acylation modification, epoxy compound modification, formation of quaternary ammonium salt, etc. Organic silicon quaternary ammonium salt makes the nitrogen atom positively charged When used in fabric treatment to reduce oxidized energy and prevent yellowing, organosilicon quaternary ammonium salts are combined with fibers in two ways: one is that the positive c ...
The organopolysiloxane quaternary ammonium salt is generally synthesized by the method of first synthesizing polysiloxane and then quaternizing. When synthesizing organopolysiloxane, the method of cyclosiloxane ring-opening equilibrium polymerization is generally adopted. , The catalyst has H2SO4, KOH, (CH3)NOH, etc., and then receives functional groups (such as amine groups), and controls the amount of access groups as needed, and then performs quaternization. Quaternization of hydrogen-co ...