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

Long-chain alcohol ether polycarboxylic acid and its preparation method and application

The technology of long-chain alcohol ether polycarboxylic acid and alcohol ether polycarboxylic acid is applied in the directions of lubricating compositions, base materials, petroleum industry, etc., and can solve the problems of short service life, easy hydrolysis of ester bonds, etc. Easy to clean and meet the effect of cleaning performance

Active Publication Date: 2019-01-08
GUANGZHOU MIQI CHEM CO LTD
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ordinary polyester lubricants have a short service life due to the easy hydrolysis of ester bonds, and are oily extreme pressure lubricants

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
  • Long-chain alcohol ether polycarboxylic acid and its preparation method and application
  • Long-chain alcohol ether polycarboxylic acid and its preparation method and application
  • Long-chain alcohol ether polycarboxylic acid and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] The long-chain alcohol ether polycarboxylic acid of present embodiment is prepared by following method:

[0046] Heat 530 g (0.2 mol) of 1740 (EO / PO trans-block polyether (EO:PO=2:3)) to 65°C, and add 19.6 g (0.2 mol) of maleic anhydride in batches within 1 hour After the addition, heat preservation reaction for 2 hours; heat up to 85 ° C, add 1.2 grams of benzoyl peroxide, 0.6 grams of mercaptopropionic acid, drop 28.8 grams (0.4 mol) of acrylic acid in 3 hours, heat preservation reaction for 3 hours; vacuum deodorization 1.5 Hour; add 0.6 gram of hydroquinone, cool down and discharge, and obtain the long-chain alcohol ether polycarboxylic acid.

Embodiment 2

[0048] The long-chain alcohol ether polycarboxylic acid of present embodiment is prepared by following method:

[0049] Heat 530 g (0.2 mol) of 1740 (EO / PO trans-block polyether (EO:PO=2:3)) to 75°C, and add 19.6 g (0.2 mol) of maleic anhydride in batches within 1 hour After the addition, heat preservation reaction for 1 hour; heat up to 95°C, add 1.2 grams of benzoyl peroxide and 0.6 grams of mercaptopropionic acid; drop 28.8 grams (0.4mol) of acrylic acid in 3 hours, heat preservation reaction for 2 hours; vacuum deodorization 1 Hour; add 0.6 gram of hydroquinone, cool down and discharge, and obtain the long-chain alcohol ether polycarboxylic acid.

Embodiment 3

[0051] The long-chain alcohol ether polycarboxylic acid of present embodiment is prepared by following method:

[0052] Heat 530 g (0.2 mol) of 1740 (EO / PO trans-block polyether (EO:PO=2:3)) to 65°C, and add 19.6 g (0.2 mol) of maleic anhydride in batches within 1 hour After the addition, heat preservation reaction for 3 hours; heat up to 85°C, add 1.2 grams of benzoyl peroxide and 0.6 grams of mercaptopropionic acid; drop 28.8 grams (0.4mol) of acrylic acid in 2.5 hours, heat preservation reaction for 3 hours; vacuum deodorization 1 Hour; add 0.6 gram of hydroquinone, cool down and discharge, and obtain the long-chain alcohol ether polycarboxylic acid.

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

No PUM Login to View More

Abstract

The invention relates to a long-chain alcohol ether polycarboxylic acid, and a preparation method and application thereof. The long-chain alcohol ether polycarboxylic acid has the structure disclosed as Formula I, wherein x=x=0-10, y=1-10, z=0-10, p=10-40, n=5-25, and m=5-25. The long-chain alcohol ether polycarboxylic acid is prepared from EO / PO (ethylene oxide / propylene oxide) block polyether, maleic anhydride, acrylic acid, an initiator, a chain-transfer agent and a polymerization inhibitor. The mole ratio of the EO / PO block polyether, maleic anhydride and acrylic acid is 1:(0.5-1.5):(1.5-4). In the EO / PO block polyether, the EO:PO mole ratio is (0.2-2):1. The long-chain alcohol ether polycarboxylic acid can be used as an extreme pressure lubricant, and has the advantages of outstanding water-based lubricating property and anti-friction property, high safety, environment friendliness, excellent compatibility with emulsified oil and emulsified cutting oil, no cutting adhesion and high cleaning property.

Description

technical field [0001] The invention relates to the field of lubricants, in particular to a long-chain alcohol ether polycarboxylic acid and its preparation method and application. Background technique [0002] With the development of modern mechanical equipment in the direction of high speed, high load, high temperature, etc., the lubrication conditions of the equipment become more and more harsh; when the mechanical equipment is under high load and high speed conditions, the film formed by traditional lubricants will be destroyed If it is damaged, it will no longer protect the metal surface, and the contact surface will be scratched or even sintered. At this time, an extreme pressure-resistant lubricant is needed to improve the wear resistance of each component. [0003] Commonly used extreme pressure lubricants are: chlorinated paraffin, phosphate ester, polyester. Due to the analysis of chloride ions in chlorinated paraffin, the corrosion is intensified and gradually el...

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): C08F283/06C08F220/06C10M107/30C10M145/00C10N30/04C10N30/06
CPCC08F283/065C10M107/30C10M145/00C10M2209/11C10M2209/1105C10N2030/04C10N2030/06C08F220/06
Inventor 李少林李建国谭金平
Owner GUANGZHOU MIQI CHEM CO LTD