Municipal solid waste incineration bottom ash modified polyurethane-epoxy resin interpenetrating polymer network composite material and preparation method thereof

A technology for incineration of domestic waste and interpenetrating polymers is applied in the field of interpenetrating polymer network materials and their preparation, which can solve the problems of brittleness and poor impact performance of cured products, and achieve the improvement of mechanical properties and thermal stability, and the price is excellent and cheap. , good stability

Active Publication Date: 2019-01-11
合肥九州龙腾科技成果转化有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Epoxy resin has excellent physical and chemical properties, and its cured product has good mechanical properties, low curing shri

Method used

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  • Municipal solid waste incineration bottom ash modified polyurethane-epoxy resin interpenetrating polymer network composite material and preparation method thereof
  • Municipal solid waste incineration bottom ash modified polyurethane-epoxy resin interpenetrating polymer network composite material and preparation method thereof
  • Municipal solid waste incineration bottom ash modified polyurethane-epoxy resin interpenetrating polymer network composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0029] Example 1

[0030] Step 1: Weigh 0.15 kg of weathered municipal solid waste incineration bottom ash, mix it with 300 mL of distilled water, ultrasonicate for 1 hour (power 250W), filter, and dry for 12 hours. Then sieving the bottom ash with a ball mill to a particle size of less than 200 meshes to obtain the washed bottom ash; weigh 0.1 kg of the washed bottom ash, mix it with 1000 mL of 1 mol / L hydrochloric acid, and ultrasound for 90 min at room temperature (power 250W), After acid activation, it is washed with water to neutrality, and then washed with acetone. The filter cake is vacuum dried at 120°C for 12 hours, and then ground to obtain the acid-washed bottom ash; weigh 50g of the acid-washed bottom ash, and 100g isophorone Diisocyanate and 25g of tetrahydrofuran were condensed and refluxed at 70-80°C for 3 to 4 hours, filtered, the filter cake was vacuum dried at 120°C for 12 hours, and ground to obtain the bottom ash modified by isophorone diisocyanate.

[0031] St...

Example Embodiment

[0035] Example 2

[0036] Step 1: Prepare the bottom ash modified by isophorone diisocyanate by referring to the method of Example 1;

[0037] Step 2: Take 5.1 g of the bottom ash modified by isophorone diisocyanate, mix it with tetrahydrofuran at a mass ratio of 1:3, and ultrasound for 1 h (power 250W) at room temperature to obtain a bottom ash suspension.

[0038] Step 3: Take 65.09 g of castor oil and 9.91 g of isophorone diisocyanate and mix, stir at 90° C. for 1 hour with a magnet to form a castor oil-based polyurethane prepolymer.

[0039] Step 4: After the prepolymer is cooled to room temperature, it is mixed with 132.58g epoxy resin, the bottom ash suspension is added to the polyurethane-epoxy resin mixture, the magnet is stirred for 2 to 3 hours, and the tetrahydrofuran is removed at 70°C. Then add 42.42g of curing agent D230, stir, ultrasonic for 30min (power 250W), vacuum degas, cure at 90℃ for 2h, and cure at 110℃ for 3h to obtain the modified polyurethane-epoxy of municip...

Example Embodiment

[0041] Example 3

[0042] Step 1: Prepare the bottom ash modified by isophorone diisocyanate by referring to the method of Example 1;

[0043] Step 2: Take 9.28 g of bottom ash modified with isophorone diisocyanate, mix with tetrahydrofuran in a mass ratio of 1:3, and ultrasonicate for 1 h (power 250W) at room temperature to obtain a bottom ash suspension.

[0044] Step 3: Take 78.1 g of castor oil and 11.9 g of isophorone diisocyanate and mix, stir at 90° C. for 1 hour with a magnet to form a castor oil-based polyurethane prepolymer.

[0045] Step 4: After the prepolymer is cooled to room temperature, it is mixed with 159.09g epoxy resin, the bottom ash suspension is added to the polyurethane-epoxy resin mixture, the magnet is stirred for 2 to 3 hours, and the tetrahydrofuran is removed at 70°C. Then add 50.91g curing agent D230, stir, ultrasonic for 30min (power 250W), vacuum degassing, curing at 90℃ for 2h, curing at 110℃ for 3h, that is, municipal solid waste incineration bottom a...

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Abstract

The invention discloses a municipal solid waste incineration bottom ash modified polyurethane-epoxy resin interpenetrating polymer network composite material and a preparation method thereof. According to the composite material, a polyurethane-epoxy resin interpenetrating polymer network is taken as a matrix, and diisocyanate modified bottom ash is taken as a reinforcing filler, so that the mechanical property and heat stability of the composite material are effectively improved. The preparation method comprises the following steps: 1) washing and acidifying municipal solid waste incinerationbottom ash, and preparing the diisocyanate modified bottom ash; 2) preparing suspension of the diisocyanate modified bottom ash; 3) mixing vegetable oil based polyhydric with and diisocyanate, and then carrying out a prepolymerization reaction to obtain a polyurethane prepolymer; and 4) adding epoxy resins and suspension of the diisocyanate modified bottom ash into the polyurethane prepolymer, mixing to remove a solvent, adding a curing agent for stirring, removing bubbles, and curing, thereby obtaining the municipal solid waste incineration bottom ash modified polyurethane-epoxy resin interpenetrating polymer network composite material with excellent mechanical property and thermal property.

Description

technical field [0001] The invention relates to an interpenetrating polymer network material and a preparation method thereof, in particular to a domestic waste incineration bottom ash modified polyurethane-epoxy resin interpenetrating polymer network composite material and a preparation method thereof. Background technique [0002] Municipal solid waste incineration treatment is currently widely used worldwide. It is a very effective waste management method because it can not only reduce the volume and quality of waste, effectively inactivate pathogens, but also recover heat energy to generate electricity. However, air pollutants and ash can also be produced at the same time. Among them, two main types of solid waste, bottom ash and fly ash, are produced, of which bottom ash accounts for 80% to 90% of the total amount. After natural weathering, it is classified as non-hazardous waste, so the bottom ash can be directly landfilled or reused. [0003] Incineration bottom ash ...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08L75/14C08G18/36C08G18/58C08K9/04C08K11/00
CPCC08G18/36C08G18/58C08L63/00C08L2205/04C08L75/14C08K9/04C08K11/005
Inventor 许宁陈介民王成双岳鹿张文惠侯贵华沈超浦旭清王佳磊谢宇
Owner 合肥九州龙腾科技成果转化有限公司
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