Unlock instant, AI-driven research and patent intelligence for your innovation.

Antibacterial polyester polyol and preparation method thereof, and antibacterial polyurethane

A technology of polyester polyol and polyurethane, which is applied in the field of polyol and polyurethane, and can solve the problems that polyurethane products cannot provide antibacterial properties, polyester polyol does not have antibacterial properties, and long-term bactericidal properties are poor, so as to achieve excellent long-term antibacterial properties Antibacterial properties, excellent bactericidal properties, effect of reducing impact

Active Publication Date: 2022-07-26
WANHUA CHEM GRP CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can endow polyester and polyurethane with bactericidal properties, but a large number of dead bacteria are still easy to adhere to the surface of the material, resulting in poor long-term bactericidal properties of the material
[0007] As one of the raw materials for preparing polyurethane, polyester polyol is mainly prepared by polycondensation of polyol and dibasic acid or anhydride, which can provide polyurethane materials with better strength and wear resistance, but conventional polyester polyol Not antimicrobial and does not provide antimicrobial properties to polyurethane products

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Antibacterial polyester polyol and preparation method thereof, and antibacterial polyurethane
  • Antibacterial polyester polyol and preparation method thereof, and antibacterial polyurethane
  • Antibacterial polyester polyol and preparation method thereof, and antibacterial polyurethane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] (1) Preparation of Antibacterial Polyester Polyol A

[0069] 6.59kg of ethylene glycol, 11.68kg of 2,3-dihydroxypropyl hexadecyldimethyl ammonium chloride, 13.02kg of diol D containing isobornyl ester structure 10 Mix evenly with 10.00kg adipic acid, heat up to 140°C for 1.5h at a constant temperature; continue to heat up to 180°C for a constant temperature reaction for 0.5h; raise the temperature to 210°C, add 1.65g n-butyl titanate, react for 1.0h, turn on the vacuum to -0.090MPa, remove the reaction product water and excess alcohol monomer, after the acid value and hydroxyl value are qualified, cool down and discharge to obtain antibacterial polyester polyol A, the acid value of which is 0.01mg KOH / g and the hydroxyl value 56.10mg KOH / g, the number average molecular weight is 2000g / mol.

[0070] (2) Preparation of antibacterial polyurethane PU-A

[0071] 200.00g PBA2000, 76.18g polyester polyol A and 80.00g MDI were added to the reactor, reacted at 80°C to theoreti...

Embodiment 2

[0073] (1) Preparation of Antibacterial Polyester Polyol B

[0074] 12.33kg 1,4-butanediol, 5.49kg 2,3-dihydroxypropyl n-octyldimethyl ammonium chloride, 9.33kg diol D containing isobornyl ester structure 10 Mix evenly with 10.00kg adipic acid, heat up to 150°C for 1.0h at a constant temperature; continue to heat up to 175°C for 1.0h constant temperature reaction; raise the temperature to 220°C, add 6.32g n-butyl titanate, react for 3.0h, turn on the vacuum To -0.090MPa, remove the reaction product water and excess alcohol monomer, after the acid value and hydroxyl value are qualified, cool down and discharge to obtain antibacterial polyester polyol B, its acid value is 0.10mg KOH / g, hydroxyl value It was 149.6 mg KOH / g, and the number average molecular weight was 750 g / mol.

[0075] (2) Preparation of antibacterial polyurethane PU-B

[0076] 200.00g PBA2000, 312.70g polyester polyol B and 93.81g MDI were added to the reactor, reacted to theoretical NCO at 75°C, then 18.76g ...

Embodiment 3

[0078] (1) Preparation of Antibacterial Polyester Polyol C

[0079] 7.09kg of 1,3-propanediol, 16.07kg of 2,3-dihydroxypropylhexadecyldimethylammonium chloride, 1.47kg of diol D containing isobornyl ester structure 12 Mix evenly with 10.00kg succinic acid, heat up to 160°C for 0.5h at a constant temperature; continue to heat up to 170°C for 1.5h constant temperature reaction; raise the temperature to 230°C, add 10.39g isopropyl titanate, react for 5.0h, turn on the vacuum To -0.090MPa, remove the reaction product water and excess alcohol monomer, after the acid value and hydroxyl value are qualified, cool down and discharge to obtain antibacterial polyester polyol C, the acid value of which is 2.50mg KOH / g, hydroxyl value It was 37.40 mg KOH / g, and the number average molecular weight was 3000 g / mol.

[0080] (2) Preparation of antibacterial polyurethane PU-C

[0081] 200.00g PBA2000, 25g polyester polyol C and 21.25g MDI were added to the reactor, reacted to theoretical NCO ...

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

PropertyMeasurementUnit
acid valueaaaaaaaaaa
hydroxyl valueaaaaaaaaaa
acid valueaaaaaaaaaa
Login to View More

Abstract

The invention discloses an antibacterial polyester polyol and a preparation method thereof, and an antibacterial polyurethane. The antibacterial polyester polyol has the general structural formula of wherein, the antibacterial polyurethane prepared by using the antibacterial polyester polyol of the present invention has excellent bactericidal properties, inhibits the adhesion of bacteria, removes dead bacteria on the surface of the material, and avoids bacteria The formation of biofilms, thereby enhancing the long-lasting antibacterial properties of related polyurethanes, can be used in medical devices, plastic catheters, and antibacterial coatings.

Description

technical field [0001] The invention belongs to the fields of polyols and polyurethanes, and particularly relates to the preparation of antibacterial polyester polyols and antibacterial polyurethanes. Background technique [0002] Polyurethane materials have good mechanical properties, mechanical properties and film-forming properties, so they are widely used in many fields such as biomedicine, packaging, coatings and adhesives. However, in the actual use process, the surface of the polyurethane material is easy to breed bacteria, which will not only seriously affect the safety and health of human beings, but also cause great economic losses. [0003] At present, the main method to solve the above-mentioned problems is to add antibacterial agents to the polyurethane material, so as to endow it with certain antibacterial properties. Antibacterial agents can be mainly divided into three categories: natural, organic and inorganic. Natural antibacterial agents mainly include ch...

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
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08G63/685C08G18/66C08G18/46C08G18/42C08G18/12C08G18/32
CPCC08G63/6856C08G18/664C08G18/4202C08G18/4238C08G18/4615C08G18/12C08G18/3206
Inventor 李杨张存玉黄岐善
Owner WANHUA CHEM GRP CO LTD