Organic-silicon water-repellent agent, preparation and application thereof

An organosilicon cross-linking agent, organosilicon technology, applied in textile and papermaking, fiber processing, liquid/gas/vapor textile processing, etc., can solve problems such as danger, high price, poor durability, etc. Resilience, wide application value and prospect, effect of plump hand feel

Active Publication Date: 2014-12-24
上海氟聚化学产品股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After 2005, some companies in Europe and Japan have replaced C8 with C6 and launched new products that do not contain PFOS and PFOA. However, the water repellency of C6 is average, the durability is not good, and the price is relatively expensive.
However, polymethylhydrosiloxane (PMS) has two defects. One, the film formed on the surface of the fiber is brittle, which makes the fabric feel rough. Therefore, it cannot be used alone, but must be combined with polydimethylsiloxane. (PDMS) or α, ω-dihydroxy dimethyl silicone oil (hydroxyl silicone oil) mixed application, according to Dow Corning's early patents, the best mixing ratio of PMS / PDMS is 40 / 60-60 / 40; second, it is in storage and It is easy to release hydrogen gas during transportation, so it is dangerous

Method used

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  • Organic-silicon water-repellent agent, preparation and application thereof
  • Organic-silicon water-repellent agent, preparation and application thereof
  • Organic-silicon water-repellent agent, preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Mix 60 g of self-crosslinking silicone finishing agent, 12 g of silicone crosslinking agent, and 0.04 g of sodium hydroxide, add deionized water at room temperature, stir evenly and set the volume to 1 L to prepare silicone water repellent.

[0037] The process parameters of water-repellent finishing are: the fabric used is white poplin, the liquid carrying rate of the fabric is 70%, the baking temperature is 170°C, and the baking time is 60s.

Embodiment 2

[0039] Mix 80 g of self-crosslinking silicone finishing agent, 20 g of silicone crosslinking agent, and 0.1 g of sodium carbonate, add deionized water at room temperature, stir evenly and set the volume to 1 L to prepare silicone water repellent.

[0040]The process parameters of water-repellent finishing are: the fabric used is polyester taffeta, the liquid carrying rate of the fabric is 30%, the baking temperature is 160°C, and the baking time is 120s.

Embodiment 3

[0042] Mix 40 g of self-crosslinking silicone finishing agent, 7 g of silicone crosslinking agent, and 0.01 g of ammonia water, add deionized water at room temperature, stir evenly and set the volume to 1 L to prepare silicone water repellent agent.

[0043] The process parameters of water-repellent finishing are: the fabric used is nylon, the liquid carrying rate of the fabric is 30%, the baking temperature is 190°C, and the baking time is 25s.

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Abstract

The invention relates to an organic-silicon water-repellent agent. Every liter of finishing agent comprises the following components in mass by weight: 25-80g of self-crosslinking organic-silicon finishing agent, 7-20g of organic-silicon crosslinking agent, 0.01-0.1g of alkaline and the balance of deionized water. The organic-silicon water repellent agent is mainly used for durable and water-repellent finishing of cotton, polyester, nylon and blended fabrics in finishing after printing and dyeing, and simultaneously endows the fabrics with good resilience and rich handfeel; and since the organic-silicon finishing agent does not contain fluorine and a solvent, no hazard is caused to a human body and the environment, and the properties in the process of storage and transportation keep stable. The organic-silicon water-repellent agent is a green and environment-friendly water-repellent agent, thus having wide application value and prospect in the industry, especially in the aspect of water-repellent finishing of textile products.

Description

technical field [0001] The invention relates to the field of preparation and application of organosilicon finishing agents, in particular to an organosilicon water-repellent agent and its preparation and application. Background technique [0002] During the chemical processing of fabrics, its hydrophilicity is a crucial performance. In the process of wearing fabrics, hydrophilicity is also one of the indispensable and important indicators of wearing comfort. However, in some use cases, such as rainy weather, fishing, field and water work and other personnel's outerwear, it is desirable that the fabric should have good water repellency. The water-repellent processing of textiles is also one of the important topics that textile chemical processors have been devoting to research and development for a long time. With the improvement of people's living standards, people's demand for water-repellent fabric products such as outdoor bags, jackets and tents is increasing. Water rep...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/643D06B3/10D06B3/20D06B15/00
Inventor 杨坡曹华斌胡逊毛允萍
Owner 上海氟聚化学产品股份有限公司
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