Preparation method for copolymethacrylate/polypropylene composite oil-absorbing material

A technology for copolymerizing methacrylate and methacrylate, applied in the field of non-woven materials, can solve the problems of slow absorption rate, application limitation, difficult handling, etc., and achieve the effects of increasing oil absorption rate and improving oil retention rate

Inactive Publication Date: 2015-06-10
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the research on oil-absorbing resins is still mainly focused on granular resins. Due to the limitations of their shapes, granular materials have many problems such as slow absorption rate and difficult post-treatment after oil absorption, so their applications are limited.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025]Weigh 22.5g of dispersant polyvinyl alcohol, measure 1500ml of deionized water and place it in a 10L polymerization kettle, raise the temperature to 80°C, stir for 2 hours and then lower to room temperature; weigh 7g of benzoyl peroxide and add it to a beaker, measure 1003ml of n-butyl methacrylate, 193ml of β-hydroxyethyl methacrylate and 304ml of styrene were stirred on a magnetic stirrer until the homogeneous solution was added to the polymerization kettle; the temperature was raised to 70°C, and after 5 hours of polymerization reaction under the protection of inert gas, The temperature was raised to 80°C, and the reaction was continued for 2 hours before stopping. The obtained product was copolymerized methacrylate, which was washed with deionized water for 4 times, and dried for later use.

[0026] The copolymerized methacrylate is mixed with the polypropylene granules at a mass ratio of 5 / 95, passed through a twin-screw extruder and pulverized by a pulverizer to obt...

Embodiment 2

[0030] According to the preparation of copolymethacrylate as described in Example 1, the copolymethacrylate and polypropylene particles are mixed in a mass ratio of 10 / 90, and then pulverized by a twin-screw extruder to obtain Modified polypropylene masterbatch.

[0031] The modified polypropylene masterbatch is used in the manufacture of melt-blown nonwovens to obtain a copolymethacrylate / polypropylene composite oil-absorbing material.

[0032] After testing, the obtained oil-absorbing material has an oil absorption rate of 11.7g / g for No. 0 diesel oil, an oil retention rate of 91.7%, and a water absorption rate of 6.8%.

Embodiment 3

[0034] According to the preparation of the copolymerized methacrylate described in Example 1, the copolymerized methacrylate and polypropylene particles are mixed in a ratio of 20 / 80 by mass, passed through a twin-screw extruder and pulverized by a pulverizer to obtain Modified polypropylene masterbatch.

[0035] The modified polypropylene masterbatch is used in the manufacture of melt-blown nonwovens to obtain a copolymethacrylate / polypropylene composite oil-absorbing material.

[0036] After testing, the obtained oil-absorbing material has an oil retention rate of 96.8% for No. 0 diesel oil and a water absorption rate of 8.3%.

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Abstract

The invention relates to a preparation method for a copolymethacrylate/polypropylene composite oil-absorbing material. The method comprises the following steps: adding a dispersant and deionized water into a polymerization kettle, adding a mixed solution and carrying out polymerization so as to obtain copolymethacrylate, wherein the dispersant is polyvinyl alcohol, and the mixed solution comprises 85 to 90% of alkyl methacrylate substances and styrene, 0.5% of benzoyl peroxide and 10 to 15% of beta-hydroxylethyl methacrylate; mixing copolymethacrylate with polypropylene master batch so as to obtain modified polypropylene master batch; and applying the modified polypropylene master batch to manufacturing of a melt-blown non-woven fabric so as to obtain the composite oil-absorbing material. To diesel oil No. 0, the oil absorption rate of the composite oil-absorbing material prepared in the invention is increased to 12.2 g/g from 11.2 g/g before compositing, the oil holdup rate is increased to 96.8% from 83.1% before compositing, and the water absorption rate is decreased to 6.6% from 18.2% before compositing.

Description

technical field [0001] The invention relates to a nonwoven material, in particular to a method for preparing a copolymethacrylate / polypropylene melt blown nonwoven fabric used for product oil adsorption. Background technique [0002] With the continuous development of social economy, the production and use of refined oil have increased sharply, and its leakage accidents are also on the rise. The accidents have caused serious environmental and biological disasters. How to quickly and effectively deal with this sudden oil product leakage has become a major strategic issue that must be solved in the process of my country's rapid economic development. [0003] Polypropylene fiber is the most widely used synthetic oil-absorbing material at present. It has the characteristics of hydrophobic and lipophilic, and its density is lower than that of water. It can be suspended on the water surface. Oil-absorbing felts, oil-absorbing pillows, and oil-absorbing fences made of polypropylen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L33/10C08F220/16C08F220/28C08F212/08C08F2/20C08F4/34D04H1/4382D01F8/06D01F8/10D01D5/08
CPCC08F2/20C08F4/34C08F220/18C08F220/1804C08L23/12C08L2203/12C08L2312/00D04H1/4382C08L33/10C08F212/08C08F220/281
Inventor 裴玉起封严储胜利陈健刘牧王刚毅栾国华齐智胡国林
Owner BC P INC CHINA NAT PETROLEUM CORP
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