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Acrylic ester-attapulgite composite oil-absorbing material and preparation method thereof

A technology of acrylate and attapulgite, which is applied in the field of acrylate-attapulgite composite oil-absorbing materials and its preparation, can solve the problems of unfavorable recycling and poor mechanical properties, and achieve easy recycling, increased hardness, high The effect of oil absorption ratio

Active Publication Date: 2013-03-20
常熟紫金知识产权服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved in the present invention is to improve the oil absorption rate and oil retention rate of the traditional oil-absorbing resin; the mechanical properties of the oil-absorbing resin particles are poor after expansion, which is not conducive to recycling

Method used

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  • Acrylic ester-attapulgite composite oil-absorbing material and preparation method thereof
  • Acrylic ester-attapulgite composite oil-absorbing material and preparation method thereof
  • Acrylic ester-attapulgite composite oil-absorbing material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Preparation of attapulgite modified by silane coupling agent: Add 100ml of toluene, 1ml of water and 3.0g of attapulgite to the reactor successively (pre-dried at 105°C for 2h), then add 3ml of γ-(methyl Acryloyloxy)propyltrimethoxysilane (KH-570), ultrasonic at 40-45°C for 40 minutes; then react at a constant temperature of 45-50°C under stirring for 4 hours, and the reaction product is filtered and separated with toluene and absolute ethanol in sequence Wash with deionized water to remove excess KH-570, and dry at 105°C to obtain silane coupling agent-modified attapulgite, which is ground and passed through a 200-mesh sieve for later use.

[0026] The infrared spectra of attapulgite (spectrum line 1) and attapulgite (spectrum line 2) obtained after modification with silane coupling agent are as follows: figure 1 shown. Of which 1705cm -1 and 1455cm -1 It is the characteristic peak of KH570 modified attapulgite, respectively representing carboxyl group (-COO-) and c...

Embodiment 2

[0029] Preparation of acrylate oil-absorbing materials: Add 60ml of polyvinyl alcohol aqueous solution (containing 0.6g of polyvinyl alcohol) into a three-necked flask with a stirrer and a condenser, then raise the temperature to 50°C, 2 In the case of protection, add monomer (11.66g butyl methacrylate and 8.34g styrene), initiator (0.2g azobisisobutyronitrile) and crosslinking agent (0.1g divinylbenzene ), stirred evenly, raised the temperature to 70°C, and continued to stir and react for 6h. After the reaction, the product was cooled, washed with hot water at 60°C, and then washed with ethanol, suction filtered, and dried to obtain granular oil-absorbing materials. The oil absorption ratio of this material to toluene is 12.75g / g.

[0030] In this embodiment, the weight ratio of each raw material is: 58.3 parts of butyl methacrylate, 41.7 parts of styrene, 1 part of initiator, 0.5 part of crosslinking agent, and 3 parts of dispersant.

Embodiment 3

[0032] Preparation of acrylate-attapulgite composite oil-absorbing material: Add 60ml of polyvinyl alcohol aqueous solution (containing 0.6g of polyvinyl alcohol) into a three-necked flask equipped with a stirrer and a condenser tube, then raise the temperature to 50°C, 2In the case of protection, add monomer (11.66g butyl methacrylate and 8.34g styrene), initiator (0.2g azobisisobutyronitrile), crosslinking agent (0.1g divinylbenzene ) and silane coupling agent-modified attapulgite (0.6g), stir evenly, raise the temperature to 70°C, continue to stir and react for 6h, after the reaction is completed, cool the product, wash it with hot water at 60°C, and then use Wash with ethanol, filter with suction, and dry to obtain granular composite oil-absorbing material.

[0033] The infrared spectrum of the oil-absorbing material prepared in embodiment 2 and embodiment 3 is as follows: figure 2 , where curve a represents the oil-absorbing material without modified attapulgite, and cu...

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Abstract

The invention relates to an organic-inorganic composite oil-absorbing material formed by compounding an acrylic ester monomer with attapulgite, and a preparation method thereof. The oil-absorbing material takes the following components as raw materials in parts by weight: 50-60 parts of acrylic ester, 35-50 parts of styrene, 0.5-2 parts of initiator, 0.2-1 part of cross-linking agent, 1-5 parts of dispersant and 1-10 parts of the attapulgite. The preparation method comprises the following steps of: based on a polyvinyl alcohol water solution as a reaction system, adding a mixed solution formed by uniformly mixing butyl methacrylate, styrene, the initiator, the cross-linking agent, and attapulgite under the protection of inert gas to react; and then washing to obtain the product. Compared with the traditional oil-absorbing material, the organic-inorganic composite oil-absorbing material has the advantages of high oil-absorbing multiplying power, oil retention rate and repeated oil-absorbing times, and has a potential application prospect on the aspect of environmental protection.

Description

technical field [0001] The invention relates to an organic-inorganic composite oil-absorbing material composed of acrylate monomers and attapulgite and a preparation method thereof. Background technique [0002] In modern scientific and technological research and industrial applications, polymer-doped inorganic clay nanocomposites have attracted extensive attention due to their excellent hybrid advantages over pure polymers and low cost. Due to its low cross-linked three-dimensional network structure, high oil-absorbing resin can absorb a large amount of oil and does not leak oil under pressure. It can be used as an oil-absorbing agent for marine pollution, and can also be used as an oil-absorbing material for various oils. , fungicides and other release substrates can also be used as oil filter materials, rubber modifiers, paper additives, etc. However, its application also has limitations, because most of the oil-absorbing materials are derived from petroleum-based monome...

Claims

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Application Information

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IPC IPC(8): C08F220/18C08F212/08C08F212/36C08F2/44C08K9/06C08K3/34C08L33/10
Inventor 赵宜江周守勇褚效中薛爱莲李梅生张艳张莉莉邢卫红
Owner 常熟紫金知识产权服务有限公司
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