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Preparation method for oil absorption material made of polypropylene non-woven cloth

A technology of non-woven fabrics and oil-absorbing materials, used in textiles, papermaking, fiber processing, etc.

Active Publication Date: 2012-07-11
河北维嘉无纺布有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Within the scope of the applicant's search, the use of chemical grafting methods to graft and modify melt-blown polypropylene nonwovens to introduce lipophilic groups to improve its adsorption performance has not been reported in the literature.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Cut the melt-blown polypropylene non-woven fabric into 10cm×10cm samples, put it in boiling deionized water and boil for 3-4 hours, then wash it with deionized water 5 times to remove surface impurities and oils, and dry it for backup Then, add 200ml of deionized water into a three-necked flask equipped with a stirring device, dropping funnel and condenser tube, put it into a constant temperature water bath, and when it reaches the required 65°C, add the pre-grafting reaction The N of solution total mass 1%, the N of N-dimethylaniline, the toluene of 5 times of initiator quality, the Tween-80 that causes the volume concentration (below the same) in the mixed solution to be 2ml / l, makes the initiation of homogeneous emulsion Mix the solution; then put the treated nonwoven fabric sample into a three-necked flask with a bath ratio of 1: 1000 to carry out a pre-grafting reaction; after 45min, add 5% formazan of the total mass of the pre-grafting reaction solution dropwise wi...

Embodiment 2

[0033] After the melt-blown polypropylene nonwoven fabric sample was processed as described in Example 1, in a three-necked flask equipped with a stirring device, a dropping funnel, and a condenser tube, 200ml of deionized water was added, and put into a constant temperature water bath, When being raised to 70 DEG C, add the potassium persulfate of monomer mass 2%, the toluene of 5 times of initiator mass, the volume concentration in the initiation mixed solution is the Tween-80 of 2ml / l, forms the initiation mixing of homogeneous emulsion After the solution, the treated non-woven fabric was put into the flask with a bath ratio of 1: 1000 to carry out the pre-grafting reaction; after 45 minutes, the total mass of the pre-grafting reaction was added dropwise with 5% methacrylic acid dodecyl After reacting for 90 minutes, take out the cloth, wash it with water for 5 times, soak it in acetone for 24 hours, remove the homopolymer and unreacted monomer, wash it for 3 times, and dry ...

Embodiment 3

[0036] After the melt-blown polypropylene nonwoven fabric sample was processed as described in Example 1, 200ml of deionized water was added to a three-neck flask equipped with a stirring device, dropping funnel and condenser tube, and placed in a 70°C constant temperature water bath In, when being raised to required temperature, add the benzoyl peroxide of monomer quality 1%, the toluene of 5 times initiator quality, the Tween-80 of 2ml / l, after forming the initiation solution of homogeneous emulsion, will The treated non-woven fabric was put into a flask with a bath ratio of 1:1000 for pre-grafting reaction; it was taken out after 45 minutes, soaked in butyl methacrylate monomer solution, and after 60 minutes of reaction, the cloth was taken out and rinsed with water Wash 4 times, then soak in acetone for 24 hours to remove homopolymers and unreacted monomers, wash 4 times, and dry to obtain a grafted modified polypropylene nonwoven fabric oil-absorbing material.

[0037] Af...

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PUM

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Abstract

The invention discloses a preparation method for an oil absorption material made of polypropylene non-woven cloth. The preparation method comprises the steps of treatment of the polypropylene non-woven cloth, preliminary grafting reaction, grafting reaction and final treatment so as to obtain the oil absorption material made of the polypropylene non-woven cloth. In the preliminary grafting reaction and the grafting reaction, a monomer drop addition method or a monomer infusion method is adopted. The process of the drop addition method is as follows: adding an oleophylic monomer dropwise in preliminary grafting reaction solution, and conducting the grafting reaction for 30 minutes to 120 minutes under constant-temperature agitation so as to obtain a graft polymerization product, wherein the oleophylic monomer belongs to methacrylic acid alkyl esters, and the adding amount of the oleophylic monomer is 3%-6% of the total mass of the preliminary grafting reaction solution. The process of the infusion method is as follows: taking out a product of the grafting reaction, putting the product into the oleophylic monomer, conducting constant-temperature agitation, and conducting the grafting reaction for 30 minutes to 120 minutes so as to obtain the graft polymerization product, wherein the oleophylic monomer belongs to methacrylic acid alkyl esters, and the adding amount of the oleophylic monomer is 3%-6% of the total mass of the preliminary grafting reaction solution.

Description

technical field [0001] The invention relates to a functional polymer material, in particular to a preparation method of a polypropylene nonwoven fabric oil-absorbing material grafted and modified by alkyl methacrylate substances. Background technique [0002] With the development of industry, the pollution caused by oily wastewater, waste liquid, and offshore oil spills cannot be ignored. If these problems are not resolved, it will cause greater damage to the earth and human beings. At present, the new oil-absorbing materials reported at home and abroad are mainly high-oil-absorbing resins. Almost all of these oil-absorbing materials use petroleum by-products as the only synthetic monomer, but petroleum is a non-renewable resource, and its price is rising day by day. There are problems such as complex preparation process, many by-products, high cost, difficult post-processing, and easy to cause secondary pollution. [0003] Melt-blown polypropylene nonwoven fabric is a typ...

Claims

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Application Information

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IPC IPC(8): D06M14/10
Inventor 封严石艳锦肖长发徐乃库
Owner 河北维嘉无纺布有限公司
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