CN103509156A - Preparation method of multi-copolymerized high salt tolerant acrylic resin - Google Patents

Abstract

The invention discloses a preparation method of a multi-copolymerized high salt tolerant acrylic resin. Specifically, 99.98% high purity acrylic acid, 2-acrylamido-2-methylpropanesulfonic acid, potassium carbonate, starch, and acrylamide are adopted as raw materials, ammonium peroxydisulfate and sodium bisulfate are taken as redox initiators, and N, N-methylene-bisacrylamide is employed as a crosslinking agent to synthesize the multi-copolymerized high salt tolerant acrylic resin. By adding multielement components, an advanced level of the product is achieved, and fast absorption of multi-salt components is realized. The structural strength of the product is reinforced. Manual labor is substantially reduced, automatic operation of the product is realized, and the product stability is ensured. The anti-degradation property of the product is prolonged, thus being more conducive to the health and environmental protection of consumers during use of the product.

Description

The preparation method of multi-component copolymer high-salt tolerance acrylic resin

Technical field

The invention belongs to high-salt tolerance and absorb resin technology field, relate to specifically a kind of preparation method of multi-component copolymer high-salt tolerance acrylic resin.

Background technology

In prior art, absorb the production technology of resin simple only adopted one or both single monomers, only realized the assimilation effect of high-absorbable resin for pure simple medium, production technique all belongs to solution polymerization process.This absorption resin of the prior art has that cost is high, at the bottom of efficiency, the shortcoming such as time-consuming, and the waste that product causes is in process of production larger, can not realize automatic production completely, a lot of operations must adopt a large amount of labor force's manual operationss, workman's labour intensity is larger, and working efficiency is lower.Absorption resin salt tolerant of the prior art is not enough, slow to the absorption rate of salt solution, absorptivity is poor, and the monomer residue in product is higher, in the use procedure of product, can cause a large amount of human injuries to user, is detrimental to health and is unfavorable for environmental protection development.How can provide a kind of with low cost, efficiency is higher, the preparation method of the absorption resin of high-salt tolerance becomes the demand that people are urgent.

Summary of the invention

The deficiency that the present invention exists in order to overcome prior art, provides a kind of preparation method of with low cost, the more much higher first copolymerization high-salt tolerance acrylic resin of efficiency.

The present invention is achieved by the following technical solutions: a kind of preparation method of multi-component copolymer high-salt tolerance acrylic resin, it take high purity acrylic acid, 2-acrylamide-2-methylpro panesulfonic acid, salt of wormwood, starch, the acrylamide that massfraction is 99.98% is raw material, ammonium peroxydisulfate, sodium bisulfite are that reduction system causes, with N,N methylene bis acrylamide, it is the synthetic multi-component copolymer high-salt tolerance acrylic resin of linking agent.

A preparation method for multi-component copolymer high-salt tolerance acrylic resin, it specifically comprises the steps:

A, solution of potassium carbonate 230～256g is slowly joined in high-pure propylene acid solution, and stir until add complete while pour into;

B, 2-acrylamide-2-methylpro panesulfonic acid (AMPS) 25～35g is added in salt of wormwood vinylformic acid neutralizer gently until add complete;

C, neutralizer limits are stirred in acrylamide 15～26g limits add until add completely, logical nitrogen flooding oxygen continues to stir;

D, add starch 5～13g continue to stir, then add 0.03g N,N methylene bis acrylamide to carry out crosslinking reaction;

E, to add concentration be that 1.5% ammonium peroxydisulfate 1.2g continues to stir 5min, and adding concentration is that 5% sodium bisulfite 0.5g stirs 30s;

F, polynary neutralizer is poured into and in polymerization tank, carried out polyreaction and obtain resin gel;

G, by resin gel chopping to 0.2～0.5cm size, then carry out drying and processing 2h at 100 ℃, the resin after drying is taken to 100g and imports handle box;

H, two degree cross-linked formulations glycerol 3.2g are joined to stir in 150g water and place in treatment solution bottle, and get alum 10g and incorporate treatment solution bottle stirring and dissolving;

I, the treatment solution preparing is sprayed at uniformly to the resin surface of prepare processing and stirs make its uniform contact treatment solution, the baking oven of then resin being put into 150 ℃ toasts 45min.

Optimizing reaction conditions is: vinylformic acid degree of neutralization 80% monomer 100g, 35%AMPS, 30% solution of potassium carbonate 256g, starch are pressed monomer ratio 26% by monomer ratio 13%, acrylamide, synthetic multi-component copolymer high-salt tolerance acrylic resin with this understanding, water regain is at 550 times, and the ability that absorbs 0.9% physiological saline reaches 50～100 times.

The present invention relates to carry out the unsaturated monomer solution of crosslinked acrylate, in polymerization, obtain Resin adhesive and make it to produce the furfural that contains 50～860 ppm by weight (monomer relatively).

The invention has the beneficial effects as follows: the invention provides multi-component copolymer purposes super absorbent resin preparation method widely, before the method has broken through, a lot of preparation schemes can not be reached the unified difficulty of water suction and high-salt tolerance, substantive formula of the present invention has been done a large amount of monomers and has been introduced the comprehensive breakthrough that has realized product, and the present invention uses many hydrophilic radicals to strengthen quick water-absorbent; Having increased many salt tolerants compositions, to have made up the salt tolerant of original product not enough; Prior art products just there will be signs of degradation after absorbing thick liquid after 3～4h, and the present invention has added special processing to realize product in anti-degradation property can maintain degradation time more than 12h after absorption; Prior art products after water suction intensity can but absorb after many salt component liquid and occur water paralysis phenomenon gel-strength extreme difference, the present invention still keeps gel-strength graininess to guarantee the ventilation property of product in sanitary product use procedure after product absorbs many salt component liquid.

The present invention has reached the top standard of this product by adding of multi-component, realized the quick absorption of many salt components; Strengthened the structural strength of product; Reduce a large amount of hand labor power, realized the automated operation of product, guaranteed the stability of product; Extend the anti-degradation property of product, be more conducive to the health environment-friendly of human consumer when product is used.

Accompanying drawing explanation

Fig. 1 is the preparation method's of multi-component copolymer high-salt tolerance acrylic resin of the present invention process flow sheet;

Fig. 2 is the absorption effect contrast table of multi-component copolymer high-salt tolerance acrylic resin and ordinary resin;

In Fig. 2: white post represents ordinary resin, black post represents multi-component copolymer high-salt tolerance acrylic resin.

Embodiment

Below in conjunction with accompanying drawing, the present invention is described in detail.

As depicted in figs. 1 and 2, a kind of preparation method of multi-component copolymer high-salt tolerance acrylic resin, it take high purity acrylic acid, 2-acrylamide-2-methylpro panesulfonic acid, salt of wormwood, starch, the acrylamide that massfraction is 99.98% is raw material, ammonium peroxydisulfate, sodium bisulfite are that reduction system causes, with N,N methylene bis acrylamide, it is the synthetic multi-component copolymer high-salt tolerance acrylic resin of linking agent.

A preparation method for multi-component copolymer high-salt tolerance acrylic resin, it specifically comprises the steps: a, solution of potassium carbonate 256g is slowly joined in high-pure propylene acid solution, and stirs until add complete while pour into; B, 2-acrylamide-2-methylpro panesulfonic acid (AMPS) 35g is added in salt of wormwood vinylformic acid neutralizer gently until add complete; C, neutralizer limit is stirred in acrylamide 26g limit add until add completely, logical nitrogen flooding oxygen continues to stir; D, add starch 13g continue to stir, then add 0.03g N,N methylene bis acrylamide to carry out crosslinking reaction; E, to add concentration be that 1.5% ammonium peroxydisulfate 1.2g continues to stir 5min, and adding concentration is that 5% sodium bisulfite 0.5g stirs 30s; F, polynary neutralizer is poured into and in polymerization tank, carried out polyreaction and obtain resin gel; G, by resin gel chopping to 0.2～0.5cm size, then carry out drying and processing 2h at 100 ℃, the resin after drying is taken to 100g and imports handle box; H, two degree cross-linked formulations glycerol 3.2g are joined to stir in 150g water and place in treatment solution bottle, and get alum 10g and incorporate treatment solution bottle stirring and dissolving; , the treatment solution preparing be sprayed at uniformly to the resin surface of prepare processing and stir make its uniform contact treatment solution, the baking oven of then resin being put into 150 ℃ toasts 45min.

Finally should be noted that; above content is only in order to illustrate technical scheme of the present invention; but not limiting the scope of the invention; the simple modification that those of ordinary skill in the art carries out technical scheme of the present invention or be equal to replacement, does not all depart from essence and the scope of technical solution of the present invention.

Claims (2)

1. the preparation method of a multi-component copolymer high-salt tolerance acrylic resin, it is characterized in that: the high purity acrylic acid that the massfraction of take is 99.98%, 2-acrylamide-2-methylpro panesulfonic acid, salt of wormwood, starch, acrylamide are raw material, ammonium peroxydisulfate, sodium bisulfite are that reduction system causes, with N,N methylene bis acrylamide, it is the synthetic multi-component copolymer high-salt tolerance acrylic resin of linking agent.

2. the preparation method of a kind of multi-component copolymer high-salt tolerance acrylic resin according to claim 1, is characterized in that: described preparation method specifically comprises the steps:

A, solution of potassium carbonate 230～256g is slowly joined in high-pure propylene acid solution, and stir until add complete while pour into;

B, 2-acrylamide-2-methylpro panesulfonic acid 25～35g is added in salt of wormwood vinylformic acid neutralizer gently until add complete;

C, neutralizer limits are stirred in acrylamide 15～26g limits add until add completely, logical nitrogen flooding oxygen continues to stir;

D, add starch 5～13g continue to stir, then add 0.03g N,N methylene bis acrylamide to carry out crosslinking reaction;

E, to add concentration be that 1.5% ammonium peroxydisulfate 1.2g continues to stir 5min, and adding concentration is that 5% sodium bisulfite 0.5g stirs 30s;

F, polynary neutralizer is poured into and in polymerization tank, carried out polyreaction and obtain resin gel;

G, by resin gel chopping to 0.2～0.5cm size, then carry out drying and processing 2h at 100 ℃, the resin after drying is taken to 100g and imports handle box;

H, two degree cross-linked formulations glycerol 3.2g are joined to stir in 150g water and place in treatment solution bottle, and get alum 10g and incorporate treatment solution bottle stirring and dissolving;

I, the treatment solution preparing is sprayed at uniformly to the resin surface of prepare processing and stirs make its uniform contact treatment solution, the baking oven of then resin being put into 150 ℃ toasts 45min.