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Preparation method of polyether polyester modified silicone oil

A technology of polyether polyester and modified silicon, which is applied in the field of preparation of polyether polyester modified silicone oil, can solve problems such as inability to infer the connection position of active groups, failure to meet application requirements, and uncertain molecular weight, etc. Easy to yellow, not easy to stick to the roller, good effect

Active Publication Date: 2014-10-15
安徽科光新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Uncertain molecular mass, it is impossible to deduce the connection position of its active group
At the same time, when synthesizing polyether polyester modified silicone oil, different raw materials, different solvents and technological processes are used, and the developed products have great differences in performance, which cannot meet the application needs of various industries.

Method used

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  • Preparation method of polyether polyester modified silicone oil
  • Preparation method of polyether polyester modified silicone oil
  • Preparation method of polyether polyester modified silicone oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The preparation method of polyether polyester modified silicone oil, the steps are as follows:

[0026] 1. Synthesis of polyether polyester block copolymer

[0027] Synthetic roadmap as figure 1 As shown, add 48.5g of dimethyl terephthalate and 38.7g of ethylene glycol into the reaction vessel, raise the temperature to 150°C and stir for 10min, add 0.1g of zinc acetate and continue to stir for 10min, then raise the temperature to 190°C to start the transesterification reaction to obtain Ethylene terephthalate, the reaction time is 30min. Next, add 125g of ethylene terephthalate, 0.1g of antimony oxide and 0.5g of polyethylene oxide into the reaction vessel, stir, vacuumize, and raise the temperature to 230°C to start the polycondensation reaction to obtain a polyether polyester block copolymer , control the polycondensation reaction temperature does not exceed 260 ~ 270 ℃, the reaction time is 60min.

[0028] 2. Synthesis of polyether amino modified silicone oil

[...

Embodiment 2

[0033] The preparation method of polyether polyester modified silicone oil, the steps are as follows:

[0034] 1. Synthesis of polyether polyester block copolymer

[0035] Synthetic roadmap as figure 1 As shown, add 48.5g of dimethyl terephthalate and 38.7g of ethylene glycol into the reaction vessel, raise the temperature to 150°C and stir for 10min, add 0.1g of zinc acetate and continue to stir for 10min, then raise the temperature to 190°C to start the transesterification reaction to obtain Ethylene terephthalate, the reaction time is 20min. Next, add 125g of ethylene terephthalate, 0.1g of antimony oxide and 0.5g of polyethylene oxide into the reaction vessel, stir, vacuumize, and raise the temperature to 230°C to start the polycondensation reaction to obtain a polyether polyester block copolymer , control the polycondensation reaction temperature does not exceed 260 ~ 270 ℃, the reaction time is 30min.

[0036] 2. Synthesis of polyether amino modified silicone oil

[...

Embodiment 3

[0041] The preparation method of polyether polyester modified silicone oil, the steps are as follows:

[0042] 1. Synthesis of polyether polyester block copolymer

[0043] Synthetic roadmap as figure 1 As shown, add 48.5g of dimethyl terephthalate and 38.7g of ethylene glycol into the reaction vessel, raise the temperature to 150°C and stir for 10min, add 0.1g of zinc acetate and continue to stir for 10min, then raise the temperature to 190°C to start the transesterification reaction to obtain Ethylene terephthalate, the reaction time is 5h. Next, add 125g of ethylene terephthalate, 0.1g of antimony oxide and 0.5g of polyethylene oxide into the reaction vessel, stir, vacuumize, and raise the temperature to 230°C to start the polycondensation reaction to obtain a polyether polyester block copolymer , control the polycondensation reaction temperature does not exceed 260 ~ 270 ℃, the reaction time is 3h.

[0044] 2. Synthesis of polyether amino modified silicone oil

[0045] ...

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Abstract

Belonging to the technical field of organic silicon products, the invention relates to a preparation method of polyether polyester modified silicone oil. Involving ester exchange reaction and condensation polymerization techniques, the method consists of: firstly adding dimethyl terephthalate, ethylene glycol and zinc acetate into a reaction container to undergo ester exchange reaction, adding ethylene terephthalate, antimony oxide and polyethylene oxide into a reaction container to undergo condensation polymerization so as to obtain a polyether polyester segmented copolymer; then terminal hydrogen-containing silicone oil, allyl glycidyl ether and a Pt catalyst are added into a reaction container to undergo heat preservation reaction, performing vacuum pumping to remove low-boiling-point substances; adding polyether amine and a solvent into terminal epoxy modified silicone oil to undergo reflux reaction, conducting pressure reduction to remove the solvent so as to obtain polyether amino modified silicone oil; and mixing the polyether polyester segmented copolymer and the polyether amino modified silicone oil evenly, and carrying out heat preservation reaction to obtain the polyether polyester modified silicone oil. The emulsion has good stability, is difficult to yellow and stick rolls. Also the use effect is better than that of compounding, and the tedious compounding procedure in the application process is omitted.

Description

technical field [0001] The invention belongs to the technical field of silicone products, and in particular relates to a preparation method of polyether polyester modified silicone oil. Background technique [0002] Silicone materials have developed very rapidly in the past 10 years, and are widely used in various aspects of production and daily life, such as electronics, medicine, electricity, construction, automobiles and other industries and daily necessities. Divided by physical properties, silicone materials can be divided into three categories: silicone resin, silicone rubber and silicone oil. [0003] Silicone oil is generally used as a finishing agent for woolen fabrics. After woolen fabrics are treated, such fabrics are generally required to feel soft, smooth, fluffy, and have good elasticity and hydrophilicity. In the past, some silicone oils had good slipperiness, some had good softness, and some had good fluffiness, so it was generally difficult for a single sil...

Claims

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Application Information

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IPC IPC(8): C08G81/00C08G63/672C08G77/38
Inventor 王晓红陆建飞华明清肖功奇
Owner 安徽科光新材料有限公司
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