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Method for preparing high oil absorption resin

A high oil-absorbing resin and monomer technology, applied in the field of preparation of functional polymers, can solve the problems of low gel amount, low conversion rate, low apparent oil absorption rate, etc., and achieve high gel amount, high conversion rate, The effect of excellent oil absorption

Inactive Publication Date: 2007-06-06
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a preparation method of high oil-absorbing resin, which overcomes the low conversion rate, low gel content, and apparent The problem of low oil absorption rate, so as to improve the yield of long-chain olefinic monomers into high oil-absorbing resins and obtain high gel content, so that the prepared high oil-absorbing resins have excellent oil-absorbing performance, and have suitable rigidity and flexibility, oil-absorbing body not slimy

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] In a reactor equipped with a stirrer, reflux condenser, thermometer and feeder, add 15 mL of a 1% calcium hydroxyphosphate dispersant solution, 10 mL of a 1% polyvinyl alcohol solution and 75 mL of water, and stir at room temperature Disperse for 15 minutes, then add the oil phase solution mixed with 0.75g dibenzoyl peroxide, 0.75g divinylbenzene and 50g styrene while stirring, pass nitrogen and exhaust oxygen, stir and disperse for 15 minutes, then heat up to 80°C for reaction 8h, and then heated to 95 ° C for 6h aging. After the reaction is completed, the product is cooled and then filtered, washed with hot water for several times, and dried to obtain low-crosslinked polystyrene resin particles.

[0047] Add 200mL of refined anhydrous carbon tetrachloride and 5.0g of anhydrous aluminum trichloride to a reactor equipped with a stirrer, reflux condenser, thermometer and feeder, stir and dissolve at 30°C, then add 60g of anhydrous α- Stir and mix the dodecene, and then ...

Embodiment 2

[0049] In a reactor equipped with a stirrer, reflux condenser, thermometer and feeder, add 15 mL of a 1% calcium hydroxyphosphate dispersant solution, 10 mL of a 1% polyvinyl alcohol solution and 75 mL of water, and stir at room temperature Disperse for 15 minutes, then add the oil phase solution mixed with 0.75g of dibenzoyl peroxide, 0.75g of divinylbenzene, 30g of styrene and 20g of α-dodecene while stirring, pass nitrogen and oxygen, stir and disperse After 15 minutes, the temperature was raised to 80°C for 8 hours, and then the temperature was raised to 95°C for 6 hours of aging. After the reaction is completed, the product is cooled, filtered, washed with hot water for several times, and the obtained product is dried to obtain low-crosslinked styrene-type copolymer resin particles.

[0050] Add 200mL of refined anhydrous carbon tetrachloride and 5.0g of anhydrous aluminum trichloride into a reactor equipped with a stirrer, reflux condenser, thermometer and feeder, stir a...

Embodiment 3

[0052] In a reactor equipped with a stirrer, reflux condenser, thermometer and feeder, add 15 mL of a 1% calcium hydroxyphosphate dispersant solution, 10 mL of a 1% polyvinyl alcohol solution and 75 mL of water, and stir at room temperature Disperse for 15 minutes, then add the oil phase solution mixed with 0.75g of dibenzoyl peroxide, 0.75g of divinylbenzene, 35g of styrene and 15g of α-dodecene while stirring, pass nitrogen and oxygen, and stir to disperse After 15 minutes, the temperature was raised to 80°C for 8 hours, and then the temperature was raised to 95°C for 6 hours of aging. After the reaction is completed, the product is cooled, filtered, washed with hot water for several times, and the obtained product is dried to obtain low-crosslinked styrene-type copolymer resin particles.

[0053] Add 200mL of refined anhydrous carbon tetrachloride and 5.0g of anhydrous aluminum trichloride to a reactor equipped with a stirrer, reflux condenser, thermometer and feeder, stir ...

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Abstract

A process for preparing the resin with high oil absorptivity from styrene and long-chain olefin monomer CnH2n, where n is equal to or greater than 4, includes such steps as preparing the low-cross-linked polystryrene or styrene copolymer, immersing it in solvent or long-chain olefin monomer or their mixture, and alkylating reaction. Its advantages are high content of gel and oil absorptivity, and low cost.

Description

A technical field [0001] The invention relates to a preparation method of a functional polymer, in particular to a preparation method of a high oil-absorbing resin. Two background technology [0002] Super oil-absorbing resin is a body-shaped polymer resin with a low three-dimensional network chemical crosslinking structure. Compared with traditional oil-absorbing materials, high oil-absorbing resin has many advantages such as various types of oil absorption, large oil absorption capacity, good oil-water selectivity, convenient recovery, strong oil retention capacity, no oil leakage under pressure, and easy storage and transportation, so it is widely used in Environmental protection, rubber, pesticide and paper making industries, used as various oil treatment agents, substrates, oil mist filter materials, rubber modifiers and additives for paper, etc. Oil contamination. [0003] According to different types of monomers, super oil-absorbing resins are mainly divided into tw...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F257/02
Inventor 应宗荣林雪梅罗洁曾小平
Owner NANJING UNIV OF SCI & TECH
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