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Polymer waterborne polyester and preparation method thereof

A water-based polyester and polymer technology, which is applied in the field of polyester, can solve the problems of unstable quality of stiffening agent, unenvironmental protection of the production process, and excellent stiffening effect, and achieve the effects of flexible variety changes, moderate surface tension, and cost saving

Active Publication Date: 2015-12-02
广州市弘浩纺织助剂有限公司
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  • Abstract
  • Description
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Problems solved by technology

[0003] The existing stiffeners commonly used are polyacrylate, polyvinyl acetate, urea-formaldehyde resin or cyanamide resin. The quality of these existing stiffeners is unstable, and there are defects such as low molecular weight, poor chemical resistance, and excellent stiffening effect. , the production process is not environmentally friendly, especially the production of urea-formaldehyde resin and cyanamide resin causes serious pollution to the environment and affects people's lives

Method used

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  • Polymer waterborne polyester and preparation method thereof
  • Polymer waterborne polyester and preparation method thereof

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Embodiment Construction

[0027] The present invention will be further elaborated below in conjunction with the accompanying drawings and embodiments.

[0028] A kind of polymer water-based polyester, it is made of 50% purified terephthalic acid (PTA), 1.8% isophthalic acid (IPA), 24% ethylene glycol (EG), 12.5% ​​diethylene glycol, 10% three simple Body, 0.3% catalyst and 1.4% other additives are used as raw materials by weight percentage and synthesized with mother liquor through esterification and polycondensation. The additives are commonly used stabilizers, defoamers, dehydrating agents, etc.

[0029] like figure 1 Shown, its specific preparation method is as follows:

[0030] Step S1: Beating

[0031] Pump the EG with a weight ratio of 24% to the EG high-level metering tank, and then enter the beating kettle. Under the stirring state, put PTA, IPA, three monomers, and diethylene glycol into the beating kettle evenly through the metering pump Stir for 1 to 2 hours to make a slurry, and then use...

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Abstract

The invention discloses polymer waterborne polyester. The polymer waterborne polyester is prepared in the mode that terephthalic acid (PTA), isophthalic acid (IPA), ethylene glycol (BG), diethylene glycol, ternary monomers, a catalyst and other auxiliaries serve as raw materials, and the raw materials and mother liquid are subjected to esterification and condensation polymerization for synthesis. A preparation method of the polymer waterborne polyester includes the steps that firstly, terephthalic acid (PTA), isophthalic acid (IPA), ethylene glycol (BG), diethylene glycol and ternary monomers are made into paste and evenly fed into an esterification kettle through a metering pump, the catalyst is added for an esterification reaction, the auxiliaries are added to monomers generated by the esterification reaction, the mixture is filtered and guided into a condensation polymerization kettle for a condensation polymerization reaction, when a certain process value is reached, the mixture is extruded out through nitrogen, and the transparent polyester product is prepared after cooling, grain-sized dicing, drying and screening. The polymer waterborne polyester replaces traditional acrylic and vinyl acetate products, and urea resin and cyanamide resin which are not environmentally friendly, has a series of advantages of being excellent in adhesive force, high in molecular weight, good in environment friendliness and the like, and can serve as a textile hardening agent to be widely used.

Description

technical field [0001] The invention relates to the field of polyester, in particular to a high-molecular water-based polyester mainly used in daily chemical products, especially a stiffening agent for textile materials, and a preparation method thereof. Background technique [0002] Stiffening finishing is a kind of fabric post-finishing. It makes the fibers in the fabric yarn bond under certain conditions by padding the stiffening agent. The stiffening agent forms a film or Produce cross-linking, so that the fabric has a stiff, thick and plump feel. It is widely used in the finishing process of decorative fabrics, especially the stiffening of curtain fabrics, bag fabrics, warp knitted fabrics and interlinings. [0003] The existing stiffeners commonly used are polyacrylate, polyvinyl acetate, urea-formaldehyde resin or cyanamide resin. The quality of these existing stiffeners is unstable, and there are defects such as low molecular weight, poor chemical resistance, and ex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/688C08G63/78D06M15/507
Inventor 彭春海
Owner 广州市弘浩纺织助剂有限公司
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