Preparation method of ampholytic silane coupling agent
A silane coupling agent and amphoteric technology, applied in the field of preparation of silane coupling agents, can solve the problems of narrow applicability, single function, lack of adsorption, etc., and achieve the effects of functional compatibility, wide applicability and strong versatility
Active Publication Date: 2014-11-12
NINGBO RUNHE HIGH TECH MATERIAL CO LTD
View PDF2 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Due to containing -NH 2 The cationic softener synthesized by the cationic silane coupling agent of the structure is difficult to adsorb on protein fibers and polyamide fibers containing a large number of cationic groups of -NHCO-bonds; while the anionic softener synthesized by the anionic silane coupling agent Type softeners lack adsorption to fabric fibers containing anionic groups such as cotton, polyester, and acrylic fibers. No matter the textile softeners synthesized by cationic or anionic silane coupling agents have single functions, narrow applicability, and difficulty in general use. Therefore, the prior art has the problems and deficiencies of single function, narrow applicability, and difficulty in general use
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment
[0024] Product name: Amphoteric silane coupling agent
[0025] Formula: formula unit is mass percentage;
[0026] A reactant: γ-aminopropyldimethoxymethylsilane, 17.3%;
[0027] B reactant: methyl acrylate, 11.7%;
[0028] Organic solvent: isopropanol, 33.5%;
[0029] Hydrolyzing agent: 20% sodium hydroxide aqueous solution, 25%;
[0030] Neutralizer: concentrated hydrochloric acid, 12.5%;
[0031] preparation
[0032] Preparation conditions, equipment
[0033] Ambient air pressure: one atmosphere;
[0034] Ambient temperature: room temperature;
[0035] Preparation equipment and supporting equipment: a reaction kettle equipped with a condensation reflux device, and a supporting vacuum source.
[0036] The preparation method is polymerization, hydrolysis and neutralization
[0037] Step 1. Aggregation
[0038] Put the reactant A and the organic solvent in the formula into the reaction kettle, start stirring, add the reactant B dropwise, the speed of the stirrer is 40...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a preparation method of an ampholytic silane coupling agent, comprising a formula and the preparation method. The invention adopts the technical scheme that under the condition that organic solvent exists, complete polyreaction is performed to amino in gamma-ammonia propyl dimethoxy methyl silicane and vinyl in methyl acrylate, and then hydration reaction and neutralization reaction are performed, so that the ampholytic silane coupling agent having the characteristics of both positive ions and negative ions can be prepared, and the problems and defects of simplex function, narrow applicability and difficulty in universality of the prior art can be solved; and a textile softening agent having ampholytic characteristics and compound through the prepared ampholytic silane coupling agent not only is suitable for arrangement of fabric fiber containing cationic perssad but also is suitable for arrangement of fabric fiber containing anionic perssad, so that the textile softening agent has the advantages of compatibility of functions, wide applicability and strong universality.
Description
technical field [0001] The invention relates to a preparation method of a silane coupling agent, in particular to a preparation method of an amphoteric silane coupling agent used for synthesizing the silane coupling agent of an amphoteric textile softener. Background technique [0002] Textile softener is a finishing agent used to improve the look and feel of fabrics. Textile softeners need to combine silicone materials and fabric fibers through silane coupling agents. The prior art adopts the cationic silane coupling agent of N-(β-aminoethyl)-γ-aminopropylmethyldimethoxysilane to synthesize the cationic softener for textiles, and adopts silicone oil emulsion-carboxyl-anion Structured anionic silane coupling agent for synthesis of anionic softener for textiles. Due to containing -NH 2 The cationic softener synthesized by the cationic silane coupling agent of the structure is difficult to adsorb on protein fibers and polyamide fibers containing a large number of cationic gr...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): C08G77/26C08G77/06D06M15/643
Inventor 朱建华许海凤何雨虹皮碧荣刘毛毛
Owner NINGBO RUNHE HIGH TECH MATERIAL CO LTD