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AIP (Aluminum Isopropoxide) type nonionic surfactant as well as preparation method and application thereof

A non-ionic surface and active agent technology, applied in chemical paint/ink remover, coating, organic chemistry, etc., can solve the problem that the deinking agent cannot meet the production of high-grade recycled paper, and achieve good application prospects and whiteness High, simple and easy preparation method

Inactive Publication Date: 2013-10-23
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the development of printing technology and the emergence of new types of printing inks with different qualities, the existing deinking agents are increasingly unable to meet the requirements for the production of high-grade recycled paper

Method used

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  • AIP (Aluminum Isopropoxide) type nonionic surfactant as well as preparation method and application thereof
  • AIP (Aluminum Isopropoxide) type nonionic surfactant as well as preparation method and application thereof
  • AIP (Aluminum Isopropoxide) type nonionic surfactant as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 1) Add 1 mol of isophorone diisocyanate (IPDI) into the reactor and heat to 50°C at a stirring speed of 250r / min;

[0033] 2) Then, at a stirring speed of 500r / min, slowly drop 1mol of lauryl polyoxyethylene ether-3 (AEO-3) into the reactor at a dropping speed of 15d / min, and continue to stir and keep warm for 60 minutes after the dropping;

[0034] 3) Add 1mol PEG-200 into the reactor quickly within 3s at a stirring speed of 250r / min, continue the reaction at 60°C for 90min until the end of the reaction, and then cool down to room temperature to obtain AIP-type non- ionic surfactant. The AIP type nonionic surfactant prepared in Example 1 is used alone as a deinking agent for waste paper deinking, and is denoted as AIP-1 (m=3, n=4 in the structural formula).

Embodiment 2

[0036] 1) Add 1mol of isophorone diisocyanate (IPDI) into the reactor and heat to 50°C at a stirring speed of 200r / min;

[0037] 2) Then, at a stirring speed of 400r / min, slowly drop 1mol of lauryl polyoxyethylene ether-3 (AEO-3) into the reactor at a dropping speed of 10d / min, and continue to stir and keep warm for 60 minutes after the dropping;

[0038] 3) Add 1 mol of PEG-400 into the reactor quickly within 5s at a stirring speed of 200r / min, continue to react at 70°C for 105min until the end of the reaction, and then cool down to room temperature to obtain AIP-type non- ionic surfactant. The AIP type nonionic surfactant prepared in Example 2 is used alone as a deinking agent for waste paper deinking, and is denoted as AIP-2 (m=3, n=9 in the structural formula).

Embodiment 3

[0040] 1) Add 1 mol of isophorone diisocyanate (IPDI) into the reactor and heat to 50°C at a stirring speed of 250r / min;

[0041] 2) Then, at a stirring speed of 500r / min, slowly drop 1mol of lauryl polyoxyethylene ether-3 (AEO-3) into the reactor at a dropping speed of 15d / min, and continue to stir and keep warm for 60 minutes after the dropping;

[0042] 3) Add 1mol PEG-600 into the reactor quickly within 3s at a stirring speed of 250r / min, continue the reaction at 80°C for 120min until the end of the reaction, and then cool down to room temperature to obtain AIP-type non- ionic surfactant. The AIP type nonionic surfactant prepared in Example 3 is used alone as a deinking agent for waste paper deinking, and is denoted as AIP-3 (m=3, n=13 in the structural formula).

[0043] The molecular structure of AIP-3 is as follows:

[0044]

[0045] Next, AIP-3 was analyzed by IR and 1H NMR.

[0046] 1. IR analysis

[0047] By performing IR analysis on the target product AIP-3 ...

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Abstract

The invention provides an AIP (Aluminum Isopropoxide) type nonionic surfactant as well as a preparation method and application thereof. The chemical structural formula of the AIP type nonionic surfactant is as shown in the specification. The preparation method comprises the following steps of: adding IPDI (Isophorone Diisocyanate) into a reactor, heating to 50-70 DEG C while stirring, dropwise adding AEO (Fatty Alcohol Polyoxyethylene Ether) into the reactor while stirring, and then, continuing to stir and preserve the heat to react for 60-90min; and then, adding PEG (Polyethylene Glycol) into the reactor while stirring, and continuing to react at the temperature of 60-90 DEG C for 90-120min to obtain the AIP type nonionic surfactant. The preparation method has the advantages of simple preparation process and easiness for obtaining raw materials and controlling the reaction. Compared with a micromolecular surfactant sold on the market, the AIP type nonionic surfactant provided by the invention is longer in molecular chain, stronger in dispersing, collecting and washing capabilities for printing ink, capable of being independently used as a deinking agent for waste paper deinking or being used as a deinking agent for waste paper deinking after being compounded, good in deinking effect, high in whiteness of regenerated paper sheets, small in residual ink amount and favorable in application prospect.

Description

technical field [0001] The invention belongs to the technical field of waste paper deinking, and relates to a surfactant that can be used for waste paper deinking, in particular to an AIP type nonionic surfactant and its preparation method and application. Background technique [0002] Waste paper recycling has the advantages of saving virgin fiber resources, reducing environmental pollution, simplifying process flow, and reducing energy consumption. It not only has good economic benefits, but also has good social benefits. It is directly related to the national economy and people's livelihood issues of environmental governance and resource protection. , The key to waste paper recycling is deinking chemical treatment. Deinking agent is an important chemical in waste paper processing scale, and its deinking performance directly affects the quality of refiber. [0003] The waste paper deinking agents used today are mostly some low-molecular surfactant compounds and a small pa...

Claims

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Application Information

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IPC IPC(8): C09D9/04C08G65/333C08G65/48C07C271/24
Inventor 张昌辉雷莉娜李翔虹
Owner SHAANXI UNIV OF SCI & TECH
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