CN1417246A - In-situ and inclusion polymerization process of preparing composite particle/epoxy resin nano material - Google Patents

In-situ and inclusion polymerization process of preparing composite particle/epoxy resin nano material Download PDF

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Publication number
CN1417246A
CN1417246A CN 02150926 CN02150926A CN1417246A CN 1417246 A CN1417246 A CN 1417246A CN 02150926 CN02150926 CN 02150926 CN 02150926 A CN02150926 A CN 02150926A CN 1417246 A CN1417246 A CN 1417246A
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epoxy resin
nano
nanoparticle
stir
composite material
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CN1186389C (en
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王立
俞豪杰
江山
石全
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Zhejiang University ZJU
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Zhejiang University ZJU
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Abstract

The present invention discloses an in-situ and inclusion polymerization process of preparing composite nano particle/epoxy resin material. The epoxy resin is biphenol A type epoxy resin; and the nano particle is nano SiO2, nano montmorillonite, nano TiO2, nano CaCO3 or nano ZnO. Via the in-situ polymerization and inclusion polymerization on the surface of nano inorganic particles, the inorganic nano particles with strong autoagglutination are dispersed homogeneously in epoxy resin matrix. The preparation process using water as solvent is simple, low in cost and less pollutant, needs no solvent recover equipment and is favorable to application in industry.

Description

Original position and parcel polymerization prepare the technology of nanoparticle/epoxy resin composite material
Technical field
The present invention relates to the technology that a kind of original position and parcel polymerization prepare nanoparticle/epoxy resin composite material.
Technical background
Resins, epoxy is the important kind in the synthetic resins field, and it is celebrated with mechanical property, electric property and the adhesive property of excellence.At present, Resins, epoxy has been widely used in fields such as tackiness agent, coating, insulating material, structured material.In industry such as electric, machinofacture, aviation, boats and ships and Defence business, play an important role.China's Resins, epoxy develops rapidly since the nineties in 20th century, but throughput only accounts for 9% of world's overall throughput.It is bigger that China's Resins, epoxy industry and external advanced level are compared gap, is mainly reflected in that Technology is backward, kind is few, of poor quality, and low-and-medium-grade products is in the majority, especially extraordinary and functional product is less, can not satisfy domestic needs.
There are a lot of bibliographical informations Resins, epoxy to be carried out modification in recent years, can obviously improve performances such as its tensile strength, tensile modulus, shock strength with nano material.The bending of having reported exfoliated epoxy/18-Mont nano composite material as Lv Jiankun etc. (117 pages of " matrix material journal " the 19th the 1st phases of volume) and shock strength are compared with the Resins, epoxy of not filling nanoparticle when nano particle content is 2%~3% (wt) and have been improved 10% and 50% respectively.Dong Yuancai etc. (37 pages of " plastics industry " the 27 the 6th phases of volume) have reported with nano-TiO 2Resins, epoxy/nano-TiO for filler 2Matrix material, when the filling quality mark was 3%, the modulus in tension of material improved 370% than unmodified epoxy resin, drew Zhong Qiangdu to improve 44%, and shock strength improves 878%, and other performances also are significantly improved.Usually these modifications realize by inorganic nano-particle and the direct blend of Resins, epoxy; And often be difficult to inorganic particles is uniformly dispersed with this method; Especially when particle is nano level, because density and polar difference and the effect of nanoparticle intensive autohemagglutination, being difficult to reach real nanometer state disperses, there are many particulates to be in aggregating state, thereby make many advantages of nanoparticle modified epoxy resin composite not demonstrate fully out.People make the nanoparticle novel method of disperse in epoxy matrix material fully in exploration always.
Summary of the invention
For nanoparticle can be scattered in the epoxy matrix material with nano-scale, the invention provides the technology that a kind of original position and parcel polymerization prepare nanoparticle/epoxy resin composite material.
The objective of the invention is to realize by following technical scheme:
1, its technical process is:
1), dihydroxyphenyl propane and mass concentration be 5%~30% NaOH solution in the mol ratio of dihydroxyphenyl propane: NaOH are that 1: 1.1~1: 1.8 ratio is put into reactor, heat up and start and stir, 65 ℃~75 ℃ dissolvings down, be cooled to 50 ℃ then, add inorganic nano-particle, stir speed (S.S.) is controlled at 100~1500r/min, and nanoparticle is well dispersed in the medium;
2), drip epoxy chloropropane down at 50 ℃, dihydroxyphenyl propane: the mol ratio of epoxy chloropropane is 1: 1.1~1: 1.8, is warmed up to 80 ℃~95 ℃ after dropwising, and reaction 1.5~9hr injects cold water later on, treat to stop to stir after resin sinks, remove water, open and stir and injection hot water, inject cold water behind the stirring 15min, stop to stir and remove water, so repeat to equal to stop in 7 o'clock, carry out normal pressure dehydration and decompression dehydration drying then until pH value, must nanoparticle/epoxy resin composite material.
2, the Resins, epoxy that obtains is bisphenol A type epoxy resin.
3, nanoparticle is nanometer SiO 2Or nano imvite or nano-TiO 2Or nanometer CaCO 3Or nano-ZnO.
4, the add-on of nanoparticle accounts for 1%~30% of resin total mass.
The present invention compares with background technology, and the useful effect that has is: make the abundant disperse of inorganic nano-particle energy with extremely strong self aggregation effect in epoxy matrix material by in-situ polymerization and parcel polymerization; Take the method for a step washing prepare the technical process of nanoparticle/epoxy resin composite material simple, easy to operate, solvent recovery unit need be set, owing to make water make solvent, novel process is polluted few simultaneously, cost is low, helps industrial practical application.
Embodiment
Embodiment 1
1), 24.10 gram dihydroxyphenyl propanes and 51ml mass concentrations are that 10% NaOH solution joins in the 250ml round-bottomed flask, heat up also to start and stir, and 70 ℃ of dissolvings down, are cooled to 50 ℃ then, add 3 gram nanometer CaCO 3Particle, stir speed (S.S.) is controlled at 500r/min, and nanoparticle is well dispersed in the medium;
2), drip the 10ml epoxy chloropropane down at 50 ℃, 30min drips off, and is warming up to 80 ℃ after dropwising, and reaction 2hr injects cold water later on, treat that heavy the stopping in back stirs under the resin, remove water, open and stir and injection hot water, inject cold water behind the stirring 15min, stop to stir and remove water, so repeat to equal to stop in 7 o'clock, carry out normal pressure dehydration and decompression dehydration drying then until pH value, must nanometer CaCO 3/ epoxy resin composite material 27.97 grams.
Embodiment 2
1), 48.20 gram dihydroxyphenyl propanes and 65ml mass concentrations are that 15% NaOH solution joins in the 250ml round-bottomed flask, heat up also to start and stir, and 70 ℃ of dissolvings down, are cooled to 50 ℃ then, add 6 gram nanometer CaCO 3Particle, stir speed (S.S.) is controlled at 500r/min, and nanoparticle is well dispersed in the medium;
2), drip the 20ml epoxy chloropropane down at 50 ℃, 40min drips off, and is warming up to 90 ℃ after dropwising, and reaction 8hr injects cold water later on, treat that heavy the stopping in back stirs under the resin, remove water, open and stir and injection hot water, inject cold water behind the stirring 15min, stop to stir and remove water, so repeat to equal to stop in 7 o'clock, carry out normal pressure dehydration and decompression dehydration drying then until pH value, must nanometer CaCO 3/ epoxy resin composite material 55.56 grams.

Claims (4)

1, a kind of original position and parcel polymerization prepare the technology of nanoparticle/epoxy resin composite material; It is characterized in that:
1), dihydroxyphenyl propane and mass concentration be 5%~30% NaOH solution in the mol ratio of dihydroxyphenyl propane: NaOH are that 1: 1.1~1: 1.8 ratio is put into reactor, heat up and start and stir, 65 ℃~75 ℃ dissolvings down, be cooled to 50 ℃ then, add inorganic nano-particle, stir speed (S.S.) is controlled at 100~1500r/min, and nanoparticle is well dispersed in the medium;
2), drip epoxy chloropropane down at 50 ℃, dihydroxyphenyl propane: the mol ratio of epoxy chloropropane is 1: 1.1~1: 1.8, is warmed up to 80 ℃~95 ℃ after dropwising, and reaction 1.5~9hr injects cold water later on, treat to stop to stir after resin sinks, remove water, open and stir and injection hot water, inject cold water behind the stirring 15min, stop to stir and remove water, so repeat to equal to stop in 7 o'clock, carry out normal pressure dehydration and decompression dehydration drying then until pH value, must nanoparticle/epoxy resin composite material.
2, original position according to claim 1 and parcel polymerization prepare the technology of nanoparticle/epoxy resin composite material, it is characterized in that the Resins, epoxy that obtains is bisphenol A type epoxy resin.
3, original position according to claim 1 and parcel polymerization prepare the technology of nanoparticle/epoxy resin composite material, it is characterized in that nanoparticle is nanometer SiO 2Or nano imvite or nano-TiO 2Or nanometer CaCO 3Or nano-ZnO.
4, original position according to claim 1 and parcel polymerization prepare the technology of nanoparticle/epoxy resin composite material, it is characterized in that the add-on of nanoparticle accounts for 1%~30% of resin total mass.
CNB021509263A 2002-11-28 2002-11-28 In-situ and inclusion polymerization process of preparing composite particle/epoxy resin nano material Expired - Fee Related CN1186389C (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102229700A (en) * 2011-05-19 2011-11-02 安徽善孚新材料科技有限公司 Epoxy resin nanometer montmorillonite composite material and preparation method thereof
CN102391620A (en) * 2011-08-30 2012-03-28 西安交通大学 Epoxy resin matrix nano-zinc oxide composite material and preparation method thereof
CN106751695A (en) * 2016-12-06 2017-05-31 长江大学 A kind of spherical gel particle and preparation method thereof
CN107446115A (en) * 2016-06-01 2017-12-08 东北林业大学 A kind of preparation method of nano modification bisphenol A type epoxy resin

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102229700A (en) * 2011-05-19 2011-11-02 安徽善孚新材料科技有限公司 Epoxy resin nanometer montmorillonite composite material and preparation method thereof
CN102229700B (en) * 2011-05-19 2013-05-29 安徽善孚新材料科技有限公司 Epoxy resin nanometer montmorillonite composite material and preparation method thereof
CN102391620A (en) * 2011-08-30 2012-03-28 西安交通大学 Epoxy resin matrix nano-zinc oxide composite material and preparation method thereof
CN107446115A (en) * 2016-06-01 2017-12-08 东北林业大学 A kind of preparation method of nano modification bisphenol A type epoxy resin
CN107446115B (en) * 2016-06-01 2021-03-30 东北林业大学 Preparation method of nano modified bisphenol A epoxy resin
CN106751695A (en) * 2016-12-06 2017-05-31 长江大学 A kind of spherical gel particle and preparation method thereof
CN106751695B (en) * 2016-12-06 2018-11-06 长江大学 A kind of spherical gel particle and preparation method thereof

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