Method for preparing permanent antistatic agents

An antistatic agent and permanent technology, applied in the field of polymer material preparation, can solve the problems of mechanical properties and processability, serious pollution of carbon black dust, high cost of metal powder, low cost of raw materials and adjustable molecular weight of products , the effect of short response time

Inactive Publication Date: 2009-02-04
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, ordinary antistatic agents rely on water absorption to achieve antistatic, are sensitive to humidity, and have poor durability; carbon black dust is seriously polluted and easy to fall off, and the color of the product is single, and its mechanical properties and processability are greatly affected; the cost of metal powder is high. ,There are security risks

Method used

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  • Method for preparing permanent antistatic agents
  • Method for preparing permanent antistatic agents
  • Method for preparing permanent antistatic agents

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Add 60g (309mmol) of dimethyl terephthalate, 189g (315mmol) of polyethylene glycol 600 and 249g of toluene into a four-neck flask equipped with a stirrer, thermometer, and electric heating mantle, and the stirring speed is 500r / min. Then add 0.9g of stannous octoate, and evacuate with nitrogen for 30 minutes at the same time, raise the temperature of the system to 180°C for reflux reaction for 60 minutes, continue to feed nitrogen into the system, continue the reaction for 3 hours, and collect the small molecule product of transesterification-methanol, Wash with water to remove unreacted polyethylene glycol, and mix 24g of sodium phosphate with the above product to obtain a permanent antistatic agent.

Embodiment 2

[0033] Add 30g (135mmol) of diethyl terephthalate and 138g (138mmol) of polyethylene glycol 1000 into a four-necked flask equipped with a high-speed stirrer, a thermometer, and a heating mantle, and the stirring speed is 500r / min. Then add 3.125g of zinc acetate, and at the same time pass nitrogen to evacuate for 20 minutes, raise the temperature of the system to 350° C. and react for 30 minutes, and continue to pass nitrogen into the system. Continue the reaction for 4 hours, collect the small molecule product of transesterification-ethanol, wash with water to remove unreacted polyethylene glycol, and mix 5.4g lithium dioxalate borate with the above product to obtain a permanent antistatic agent.

Embodiment 3

[0035] Add 55g (220mmol) of dibutyl terephthalate and 220g (550mmol) of polyethylene glycol 400 into a four-necked flask equipped with a high-speed stirrer, a thermometer, and an electric heating mantle, and the stirring speed is 400r / min. Then add 0.6g of dibutyltin oxide, and at the same time pass nitrogen to evacuate for 30 minutes, raise the temperature of the system to 200°C and react for 60 minutes, continue to pass nitrogen into the system, react for 4 hours, and collect the small molecule product of transesterification-n-butyl Alcohol, wash with water to remove unreacted polyethylene glycol, and mix 32.3g of sodium thiocyanate with the above product to obtain a permanent antistatic agent.

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Abstract

The present invention relates to a method for preparing a permanent antistatic agent. The method has the following characteristics: along with 0.1 to 5 mass portions of catalyst and 0 to 1000 mass portions of solvent, aromatic diester or aromatic diacid coupled with estolide compound thereof and ether alcohol compound are added into a reaction kettle provided with a thermometer, a stirrer and a reflux condenser according to a molar ratio of 1 : 1 to 2.5 to react under a temperature between 50 DEG C and 350 DEG C for one to twenty four hours, so that aromatic ester provided with a benzene ring and a polyether structure is synthesized; aromatic ether ester compound is obtained after the solvent and the unreacted monomers are removed; according to a mass ratio of 1 : 1 to 30, alkali metal salt and the compound are mixed so that the aromatic ether-ester permanent antistatic agent is produced. Even under a low humidity level, the aromatic ether-ester permanent antistatic agent can keep a good antistatic effect and can plasticize various polymer materials. The aromatic ether-ester permanent antistatic agent is used for the antistatic modification of general-purpose plastics and anti-corrosion, acid-and-alkali-resisting, anti-static and flame-retarding wind tubes, conveyer belts and gas-pumping-and-exhausting tubes used by coal mines, dust-free computer rooms, antistatic floorings, packages or lithium ion batteries.

Description

technical field [0001] The invention relates to a preparation method of a permanent antistatic agent, which belongs to the field of preparation of polymer materials. Background technique [0002] Polymer materials have the advantages of light weight, wear resistance, corrosion resistance, and good electrical and thermal insulation properties. They are easy to process and shape, and are widely used in industry, construction, agriculture, daily necessities, packaging, electric power, public utilities and other fields. For a long time, polymer resin-based composite materials have been used as electrical insulating materials with excellent dielectric properties, and their surface resistance is usually as high as 10. 14 ~10 17 Ω. However, high insulation also brings the problem of electrostatic hazards to polymer materials. Because polymer materials are prone to friction during product processing or final use and accumulate static electricity, this will not only affect the tra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/16C08L71/08C08K3/32C08K3/38C08K5/43C08K5/42C08K5/12
Inventor 杨万庆王继亮雷景新
Owner SICHUAN UNIV
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