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Preparation method of low-foam silicon-containing degreaser

A degreasing agent and silicone technology, which is applied in the field of preparation of low-foaming silicon-containing degreasing agent, can solve the problems of dirty degreasing, poor emulsification and dispersion, etc., and achieve foam reduction, excellent emulsification and dispersibility , high alkali resistance effect

Active Publication Date: 2019-08-06
HANGZHOU MEIGAO HUAYI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With the development of chemical fiber varieties, chemical fiber oils and weaving processes have improved accordingly, and the oil stains remaining on chemical fiber fabrics have changed greatly. The spinning oils and weaving oils used by various factories are different, especially When the oil contains organic silicon such as dimethyl silicone oil, the traditional degreaser has poor emulsification and dispersion effect on it, and it is easy to cause the problem of unclean degreasing

Method used

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  • Preparation method of low-foam silicon-containing degreaser
  • Preparation method of low-foam silicon-containing degreaser
  • Preparation method of low-foam silicon-containing degreaser

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] (1) Preparation of silicone surfactant;

[0019] Feeding in parts by mass, add 220g of heptamethyltrisiloxane and 230g of hexadecene into the reaction vessel, heat to 90°C, add 0.01g of chloroplatinic acid catalyst, keep it at 110°C for 2 hours, then cool down to 50°C Discharge to obtain intermediate I (hexadecylheptamethyltrisiloxane); in another container, add 100g of high hydrogen-containing polydimethylsiloxane with a hydrogen content of 0.8%, and 500g of allyl polydimethylsiloxane Ethylene glycol, heated to 100°C, added 0.015g of chloroplatinic acid catalyst, kept at 120°C for 3 hours, then cooled to 90°C, added the above 30g of intermediate I, kept at 100°C for 2 hours, and cooled to below 50°C Discharge, obtain organosilicon surfactant;

[0020] (2) Preparation of low-foaming silicon-containing degreasing agent;

[0021] Feeding by mass, the organosilicon surfactant prepared in 18g step (1), 5g AEO-3, 5g isomeric tridecyl alcohol polyoxyethylene ether (EO numbe...

Embodiment 2

[0023] (1) Preparation of silicone surfactant;

[0024] Feed in parts by mass, add 225g of heptamethyltrisiloxane and 240g of hexadecene into the reaction vessel, heat to 90°C, add 0.01g of chloroplatinic acid catalyst, keep warm at 110°C for 2h, then cool down to 50°C Discharge to obtain intermediate I (hexadecylheptamethyltrisiloxane); in another container, add 100g of high hydrogen-containing polydimethylsiloxane with a hydrogen content of 0.8%, and 550g of allylpolysiloxane Ethylene glycol, heated to 100°C, added 0.02g of chloroplatinic acid catalyst, kept at 120°C for 4 hours, cooled down to 100°C, added 30g of intermediate I above, kept at 100°C for 2 hours, and cooled to below 50°C Discharge, obtain organosilicon surfactant;

[0025] (2) Preparation of low-foaming silicon-containing degreasing agent;

[0026] Feeding in parts by mass, the organosilicon surfactant prepared in 15g step (1), 5g AEO-3, 3g isomeric tridecyl alcohol polyoxyethylene ether (EO number is 7), 5...

Embodiment 3

[0028] (1) Preparation of silicone surfactant;

[0029] Feed in parts by mass, add 240g of heptamethyltrisiloxane and 245g of hexadecene into the reaction vessel, heat to 95°C, add 0.015g of chloroplatinic acid catalyst, keep warm at 110°C for 2 hours, then cool down to 40°C Discharge to obtain intermediate I (hexadecylheptamethyltrisiloxane); in another container, add 100g of high hydrogen-containing polydimethylsiloxane with a hydrogen content of 0.9%, and 600g of allyl polydimethylsiloxane Ethylene glycol, heated to 100°C, added 0.02g of chloroplatinic acid catalyst, kept at 115°C for 4 hours, then cooled to 90°C, added 25g of intermediate I above, kept at 90°C for 3 hours, and cooled to below 50°C Discharge, obtain organosilicon surfactant;

[0030] (2) Preparation of low-foaming silicon-containing degreasing agent;

[0031] Feeding in parts by mass, the organosilicon surfactant prepared in 20g step (1), 3g AEO-4, 3g isomeric tridecyl alcohol polyoxyethylene ether (EO nu...

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Abstract

The invention relates to the field of textile additives, in particular to a preparation method of a low-foam silicon-containing degreaser. Heptamethyltrisiloxane, hexadecene, polydimethylsiloxane withhigh hydrogen content and allyl polyethylene glycol are adopted as raw materials for synthesizing an organosilicone surfactant, and then the organosilicone surfactant is compounded with fatty alcoholpolyoxyethylene ether, sodium isooctanol polyoxyethylene ether carboxylate and iso-tridecanol polyoxyethylene ether to obtain the low-foam silicon-containing degreaser. The low-foam silicon-containing surfactant synthesized by adopting a hydrosilylation method can effectively reduce foam generated during use of the degreaser; at the same time, because the molecular structure of the surfactant contains an organosilicone chain segment, the surfactant has excellent emulsification dispersion performance for an oil agent into which silicone oil is added.

Description

technical field [0001] The invention relates to the field of textile auxiliaries, in particular to a preparation method of a low-foaming silicon-containing degreasing agent. Background technique [0002] Synthetic fiber occupies a very important position in the whole textile fiber. Compared with natural fiber, synthetic fiber itself does not contain natural impurities, but its moisture regain is low, the dielectric constant is small, and the friction coefficient is high. It is used in spinning and weaving. The continuous friction during the process will generate a lot of static electricity, which will affect the processing performance. In order to eliminate the static electricity generated by the fiber due to friction and make it have good spinnability and processability, the fiber needs an oiling agent during the spinning process, but the oiling agent will have a great impact on the subsequent dyeing and finishing of the fabric, so the fabric is dyed. Degreaser must be rem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/647D06M15/53
CPCD06M15/53D06M15/647
Inventor 陈焜何齐海
Owner HANGZHOU MEIGAO HUAYI CHEM