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Carboxyl-terminated phosphorus-containing copolyester, preparation method, halogen-free flame-retardant bio-based pressure-sensitive adhesive composed of it and application thereof

A copolyester and carboxyl-terminated technology, which is applied in the field of phosphorus-containing copolyester and its preparation and pressure-sensitive adhesive composition, can solve the problems of lack of flame retardancy and other problems

Active Publication Date: 2017-03-22
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the wide range of uses of pressure-sensitive adhesive products, involving daily life, industrial applications, export packaging, etc., different fields have different performance requirements for pressure-sensitive adhesive products. When pressure-sensitive adhesive products are used in automobiles and electrical industries, special requirements The pressure-sensitive adhesive products should have excellent flame retardancy, but the currently reported bio-based pressure-sensitive adhesive products do not have the corresponding flame retardancy, especially the halogen-free flame retardancy.

Method used

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  • Carboxyl-terminated phosphorus-containing copolyester, preparation method, halogen-free flame-retardant bio-based pressure-sensitive adhesive composed of it and application thereof
  • Carboxyl-terminated phosphorus-containing copolyester, preparation method, halogen-free flame-retardant bio-based pressure-sensitive adhesive composed of it and application thereof
  • Carboxyl-terminated phosphorus-containing copolyester, preparation method, halogen-free flame-retardant bio-based pressure-sensitive adhesive composed of it and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Add 209.3g (1.04mol) of sebacic acid, 76.1g (1.00mol) of 1,2-propanediol and 34.6g of DDP (0.10mol) into the reaction vessel, and then stir the esterification reaction at 180°C for 4h under the protection of nitrogen. Add 0.1ml tetrabutyl titanate toluene solution (0.2g·ml -1 ), and the solution was heated to 220°C, polycondensed in low vacuum for 0.5h, and polycondensed in high vacuum for 4h to obtain the flame-retardant copolyester of carboxyl-terminated phosphorus-containing poly(trimethylene sebacate).

[0059] M of the copolyester w 5.9×10 3 g·mol -1 .

Embodiment 2

[0061] Add 202.2g (1.00mol) of sebacic acid, 76.1g (1.00mol) of 1,2-propanediol and 51.9g of DDP (0.15mol) into the reaction vessel, and then stir the esterification reaction at 180°C for 4h under the protection of nitrogen. Add 0.1ml tetrabutyl titanate toluene solution (0.2g·ml -1 ), and the solution was heated to 220°C, polycondensed in low vacuum for 0.5h, and polycondensed in high vacuum for 4h to obtain the flame-retardant copolyester of carboxyl-terminated phosphorus-containing poly(trimethylene sebacate).

[0062] M of the copolyester w 7.0×10 3 g·mol -1 .

Embodiment 3

[0064] Add 186.0g (0.92mol) of sebacic acid, 76.1g (0.10mol) of 1,2-propanediol and 69.3g of DDP (0.20mol) into the reaction vessel, and then stir the esterification reaction at 180°C for 4h under the protection of nitrogen. Add 0.1ml tetrabutyl titanate toluene solution (0.2g·ml -1 ), and the solution was heated to 220°C, polycondensed in low vacuum for 0.5h, and polycondensed in high vacuum for 4h to obtain the flame-retardant copolyester of carboxyl-terminated phosphorus-containing poly(trimethylene sebacate).

[0065] M of the copolyester w 7.5×10 3 g·mol -1 .

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Abstract

The invention discloses carboxyl-terminated phosphorus-containing copolyester which is formed by randomly connecting and combining structural units shown as I, II and III according to carboxyl and hydroxyl functional groups, and the Mw of the carboxyl-terminated phosphorus-containing copolyester is 1.1*10<3>-1.3*10<4> g.mol<-1>. The invention further discloses a preparation method of the carboxyl-terminated phosphorus-containing copolyester, a halogen-free flame retardant biology-based pressure sensitive adhesive composed of the carboxyl-terminated phosphorus-containing copolyester and application. The copolyester is biology-based phosphorus-containing copolyester, the halogen-free flame retardant pressure sensitive adhesive formed by the copolyester and renewable resource epoxidized plant oil not only maintains the basic characteristics and good adhesive strength of a biology base, but also achieves the excellent halogen-free flame retardant properties, and the blank of biology-based halogen-free flame retardant pressure sensitive adhesive products is filled up; in addition, preparation is easy and mature, solvent is not used, the cost is low, pollution to the environment is little, and application and popularization are convenient.

Description

technical field [0001] The invention belongs to the technical field of phosphorus-containing copolyester and its preparation and pressure-sensitive adhesive composition, and specifically relates to a carboxyl-terminated bio-based phosphorus-containing co-polyester and a preparation method thereof and a halogen-free flame-retardant bio-based pressure-sensitive adhesive composed thereof and applications. Background technique [0002] Pressure-sensitive adhesive (PSA), also known as "self-adhesive", is a viscoelastic material that has both the viscous properties of a liquid and the elastic properties of a solid. The viscoelastic body can adhere to the surface of the adherend through non-covalent bond force under the action of pressure, and at the same time, if the adhesive layer is damaged, the peeled adhesive will not pollute the surface of the adherend. Pressure-sensitive adhesives are generally not directly used for bonding adherends, and are mainly used together with inert...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G63/692C09J167/02C09J191/00C09J7/02C09J7/04
Inventor 王玉忠王晓琳陈力吴嘉宁付腾汪秀丽
Owner SICHUAN UNIV
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