CN104804155A - Yttrium aluminium garnet nanofiber toughened graphene oxide melamine resin and preparation method thereof - Google Patents
Yttrium aluminium garnet nanofiber toughened graphene oxide melamine resin and preparation method thereof Download PDFInfo
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- CN104804155A CN104804155A CN201510220460.XA CN201510220460A CN104804155A CN 104804155 A CN104804155 A CN 104804155A CN 201510220460 A CN201510220460 A CN 201510220460A CN 104804155 A CN104804155 A CN 104804155A
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Abstract
The invention discloses yttrium aluminium garnet nanofiber toughened graphene oxide melamine resin. The yttrium aluminium garnet nanofiber toughened graphene oxide melamine resin is prepared from the following raw materials in parts by weight: 0.3-0.5 part of yttrium aluminium garnet nanofiber, 0.03-0.05 part of a titanate coupling agent, 20-25 parts of melamine, 40-45 parts of a 37% formaldehyde solution, 1.8-2.1 parts of graphene oxide, 0.7-0.9 part of trifluoroethyl methacrylate, 0.7-0.9 part of polyacrylonitrile, an appropriate amount of dimethylformamide, 0.2-0.3 part of polyoxyethylene, an appropriate amount of composite solvent which comprises dimethylformamide and dichloromethane according to a volume ratio of 1:1, 0.3-0.5 part of tert-butyl hydroperoxide, an appropriate amount of citric acid, an appropriate amount of an alkaline pH value modifier AMP-95, and an appropriate amount of ethanol. According to the yttrium aluminium garnet nanofiber toughened graphene oxide melamine resin disclosed by the invention, the yttrium aluminium garnet nanofiber is added to improve the high temperature resistance, the antioxidation, the high-temperature creep property and the transparence of the resin.
Description
Technical field
The present invention relates to melmac Material Field, particularly relate to a kind of yttrium aluminum garnet nano fiber reinforcement graphene oxide melmac and preparation method thereof.
Background technology
Graphene is by the carbonaceous material with the cellular crystalline network of two dimensional surface of the tightly packed one-tenth of monolayer carbon atom, and the nanostructure of its uniqueness determines that it has the performance of a series of excellence, and theoretical specific surface area is up to 2600 ㎡/g; Thermal conductivity is up to 5000W/ (m.K), for adamantine 5 times, intensity is the highest in known materials, reach 130GPa, it is more than 100 times of steel, at present, Graphene is considered to have a wide range of applications space in functional composite material, nano-device, energy storage material and support of the catalyst etc.
Utilize the excellent properties of Graphene, prepare Graphene/polymer composites, first the problem of Graphene stable dispersion in the polymer will be solved, surface of graphene oxide is with many oxygen-containing functional groups, although oxygenizement to a certain degree destroys the crystalline network of Graphene, but the interaction that these functional groups can be strong with polymer formation, thus improve the performance of matrix material.The method preparing graphene oxide/polymer composites mainly contains solution blended process, melt-blending process, in-situ polymerization intercalated method.
Melmac and melamine formaldehyde resin are a kind of widely used thermosetting resines.By using graphene oxide to carry out polymeric modification, the thermostability of resin can be improved, electroconductibility, thermal conductivity.But the improvement in performance of single graphene oxide to resin is limited, also need the performance further improving resin, can by improving technique and the performance becoming to assign to improve resin; Such as need to improve intensity, water-resistant capacity, thermostability, wear resistance, hardness, to the resistivity of chemicals, the performance such as poor toughness is easily broken, the shelf lives is short, make this resin widely for aspects such as furniture, vehicle, buildings.
Summary of the invention
The object of the present invention is to provide a kind of yttrium aluminum garnet nano fiber reinforcement graphene oxide melmac, the thermal conductivity of this resin is good, Stability Analysis of Structures, and thermostability improves a lot, high temperature resistant, anti-oxidant, high temperature creep and the transparency good.
Technical scheme of the present invention is as follows:
A kind of yttrium aluminum garnet nano fiber reinforcement graphene oxide melmac, it is characterized in that being made up of the raw material of following weight part: yttrium aluminum garnet nano fiber 0.3-0.5, titanate coupling agent 0.03-0.05, trimeric cyanamide 20-25, 37% formalin 40-45, graphene oxide 1.8-2.1, trifluoroethyl methacrylate 0.7-0.9, polyacrylonitrile 0.7-0.9, dimethyl formamide is appropriate, polyoxyethylene 0.2-0.3, dimethylformamide/dichloromethane volume ratio is that 1:1 double solvents is appropriate, tertbutyl peroxide 0.3-0.5, citric acid is appropriate, pH value regulator AMP-95 is appropriate for alkalescence, appropriate amount of ethanol.
The production method of described yttrium aluminum garnet nano fiber reinforcement graphene oxide melmac, is characterized in that:
(1) polyacrylonitrile is dissolved in dimethyl formamide, is mixed with the solution of 4wt%; Polyoxyethylene being dissolved in dimethylformamide/dichloromethane volume ratio is 1:1 double solvents, be mixed with the solution of 4wt%, again above-mentioned two kinds of solution are mixed, add yttrium aluminum garnet nano fiber, titanate coupling agent, graphene oxide, stir, add trifluoroethyl methacrylate, tertbutyl peroxide again, be heated to 60-70 DEG C, stirring reaction 1-2 hour, filter, by filter cake ethanol purge 2-3 time, obtain the graphene oxide of modification.
(2) by trimeric cyanamide, 37% formalin mixing, be heated to 70-75 DEG C, stir until all dissolve, add the graphene oxide of the modification that (1) step obtains again, stir 10-20 minute, add alkaline pH value regulator AMP-95, regulate pH value to be 8-9, reaction 3-4 hour, obtains the melmac performed polymer containing graphene oxide;
(3) performed polymer is placed in 30 DEG C of vacuum drying ovens, except being 5-6 by citric acid adjust ph after anhydrating, solidify in 50 DEG C of baking ovens 8-9 hour shaping, obtain graphene oxide/melmac matrix material.
Beneficial effect of the present invention
Resin of the present invention with the addition of graphene oxide, improves the thermal conductivity of resin, and make resin structure more stable, thermostability improves a lot; By adding yttrium aluminum garnet nano fiber, improve high temperature resistant, anti-oxidant, high temperature creep and the transparency of resin; Production technique of the present invention can improve the dispersing uniformity of graphene oxide, and composite material surface and section all do not have obvious particle agglomeration phenomenon, improve bonding strength, improves toughness and the anti-bending strength of melmac.
Embodiment
A kind of yttrium aluminum garnet nano fiber reinforcement graphene oxide melmac, be made up of the raw material of following weight part (kilogram): yttrium aluminum garnet nano fiber 0.4, titanate coupling agent 0.03-0.05, trimeric cyanamide 23, 37% formalin 43, graphene oxide 2, trifluoroethyl methacrylate 0.7-0.9, polyacrylonitrile 0.8, dimethyl formamide is appropriate, polyoxyethylene 0.2, dimethylformamide/dichloromethane volume ratio is that 1:1 double solvents is appropriate, tertbutyl peroxide 0.4, citric acid is appropriate, pH value regulator AMP-95 is appropriate for alkalescence, appropriate amount of ethanol.
The production method of described yttrium aluminum garnet nano fiber reinforcement graphene oxide melmac, is characterized in that:
(1) polyacrylonitrile is dissolved in dimethyl formamide, is mixed with the solution of 4wt%; Polyoxyethylene being dissolved in dimethylformamide/dichloromethane volume ratio is 1:1 double solvents, be mixed with the solution of 4wt%, again above-mentioned two kinds of solution are mixed, add yttrium aluminum garnet nano fiber, titanate coupling agent, graphene oxide, stir, add trifluoroethyl methacrylate, tertbutyl peroxide again, be heated to 65 DEG C, stirring reaction 1.5 hours, filter, by filter cake ethanol purge 2 times, obtain the graphene oxide of modification.
(2) by trimeric cyanamide, 37% formalin mixing, be heated to 73 DEG C, stir until all dissolve, add the graphene oxide of the modification that (1) step obtains again, stir 15 minutes, add alkaline pH value regulator AMP-95, regulate pH value to be 8.6, react 3.5 hours, obtain the melmac performed polymer containing graphene oxide;
(3) performed polymer is placed in 30 DEG C of vacuum drying ovens, except being 6 by citric acid adjust ph after anhydrating, solidify in 50 DEG C of baking ovens 8.6 hours shaping, obtain graphene oxide/melmac matrix material.
Experimental data:
The polypropylene of this embodiment is through extrusion moulding, and after tested, thermal conductivity is 0.35W/ (m ﹒ K), flexural strength 118MPa, water-intake rate < 0.1%.
Claims (2)
1. a yttrium aluminum garnet nano fiber reinforcement graphene oxide melmac, it is characterized in that being made up of the raw material of following weight part: yttrium aluminum garnet nano fiber 0.3-0.5, titanate coupling agent 0.03-0.05, trimeric cyanamide 20-25, 37% formalin 40-45, graphene oxide 1.8-2.1, trifluoroethyl methacrylate 0.7-0.9, polyacrylonitrile 0.7-0.9, dimethyl formamide is appropriate, polyoxyethylene 0.2-0.3, dimethylformamide/dichloromethane volume ratio is that 1:1 double solvents is appropriate, tertbutyl peroxide 0.3-0.5, citric acid is appropriate, pH value regulator AMP-95 is appropriate for alkalescence, appropriate amount of ethanol.
2. the production method of yttrium aluminum garnet nano fiber reinforcement graphene oxide melmac according to claim 1, is characterized in that:
(1) polyacrylonitrile is dissolved in dimethyl formamide, is mixed with the solution of 4wt%; Polyoxyethylene being dissolved in dimethylformamide/dichloromethane volume ratio is 1:1 double solvents, be mixed with the solution of 4wt%, again above-mentioned two kinds of solution are mixed, add yttrium aluminum garnet nano fiber, titanate coupling agent, graphene oxide, stir, add trifluoroethyl methacrylate, tertbutyl peroxide again, be heated to 60-70 DEG C, stirring reaction 1-2 hour, filter, by filter cake ethanol purge 2-3 time, obtain the graphene oxide of modification;
(2) by trimeric cyanamide, 37% formalin mixing, be heated to 70-75 DEG C, stir until all dissolve, add the graphene oxide of the modification that (1) step obtains again, stir 10-20 minute, add alkaline pH value regulator AMP-95, regulate pH value to be 8-9, reaction 3-4 hour, obtains the melmac performed polymer containing graphene oxide;
(3) performed polymer is placed in 30 DEG C of vacuum drying ovens, except being 5-6 by citric acid adjust ph after anhydrating, solidify in 50 DEG C of baking ovens 8-9 hour shaping, obtain graphene oxide/melmac matrix material.
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Citations (1)
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CN104167302A (en) * | 2014-08-26 | 2014-11-26 | 齐鲁工业大学 | Preparation method for grapheme/melamine resin hollow ball composite material |
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CN104167302A (en) * | 2014-08-26 | 2014-11-26 | 齐鲁工业大学 | Preparation method for grapheme/melamine resin hollow ball composite material |
Non-Patent Citations (3)
Title |
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李呈顺等: "钇铝石榴石纤维的制备和应用研究进展", 《硅酸盐通报》 * |
谭宏斌等: "钇铝石榴石纤维的应用与制备", 《中国陶瓷》 * |
陈中华等: "氧化石墨烯/密胺树脂复合材料的制备及其热性能研究", 《功能材料》 * |
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