Development and Prospect of silicone softening agent in China-Iota

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News > Dynamic industry > Development and Prospect of silicone softening agent in China

Development and Prospect of silicone softening agent in China

Softening agent is a material that can increase the softness of the fiber material. Good performance of the soft agent can also make the fiber to get a special feel, to give the product a different finishing style, improve the quality and added value, increase clothing wearing comfort.
Industrial use of soft agent can be divided into oil type, surface active dosage form, reaction type and polymer type four main types according to their main active ingredients. Early use of soft agent mainly for the first 3 categories, into the 70's after the development and use of polymer softening agent soon attracted people's attention, and become the mainstream of soft finishing. In the polymer type softening agent series, the performance of silicone softening agent (main component is the organic silicone) is the best and the yield is the biggest. According to statistics, the world is currently used in the textile finishing agent of the silicone about 150000 tons, of which 70% ~ 80% of soft agent.
The third generation of silicone softening agent is good, and can provide some additional functions, but there are still shortcomings. Therefore the third generation of organosilicon softening agent was again or complex chemical modification to reduce production costs, improve, and the development of the high molecular weight or model has the special function of organosilicon softening agent will become the research focus in the field of the 21st century. At present, silicone softening agent is expected to make progress in the following areas:
(1) the cost of reducing the cost of a silicone softening agent
Fluorine silicone softening agent and water repellent, refused to the oil effect is good, have very important application value in the to oily rags, high-grade disposable clothing fabrics, leather products and some military waterproof clothing. But the high cost of the agent production and application. Therefore, how to reduce the cost. The development is suitable for environmental protection emulsion products, will be a direction of this kind of softening agent development.
(2) the modified amino silicone oil without yellowing and moisture absorption
The industrial use of ammonia and ethyl methyl silicone oil is good, but it has a good performance, but there is a lot of heat yellowing, the moisture absorption of the fabric is not good. The etherification, acylation modification and other methods to overcome these shortcomings will be necessary.
(3) bactericidal silicone softening agent
Imidazoline, quaternary ammonium salt, betaine and cationic groups and some heterocyclic have bactericidal, antibacterial properties. Therefore, the these groups into siloxane side chain, the prepared both bactericidal and fungicidal effect of silicon softener. In addition, further modification, such as the introduction of fluorine into the aromatic ring can further improve the sterilization, sterilization effect.
(4) fire retardant, flame retardant silicone softening agent
Silicone oil has a certain flame retardant. Therefore, in polysiloxane main chain and side chain structure on the introduction of brominated, phosphorous flame-retardant groups may be expected to be prepared better flame retardant silicone softener.
(5) easy emulsification, non stick roller type high molecular weight silicone elastomer
Relative molecular mass in more than 30 million or viscosity in more than 106cSt silicone elastic body (also known as the fourth generation of organosilicon softening agent), can give super smooth soft, elasticity, anti wrinkle and washing durability of cotton fabric. But this kind of silicone elastomer is very difficult to emulsification, and easy to stick roller. So easy to develop emulsification, not sticky roller, with excellent comprehensive properties of high molecular weight polysiloxane, such as the backbone structure embedded with a hydrophilic segment of high molecular weight silicone copolymer will also be an important direction of organosilicon softening agent development.

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