CN111303607A - Wear-resistant high-temperature-resistant high-strength composite material - Google Patents
Wear-resistant high-temperature-resistant high-strength composite material Download PDFInfo
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Abstract
The invention provides a wear-resistant high-temperature-resistant high-strength composite material which is characterized by being prepared from the following components in parts by weight: 50-60 parts of phenolic hydroxyl terminated hyperbranched polyether ketone, 25-35 parts of methacryloxypropylsilatrane/trans-2- (4-chlorobenzene) ethylene boric acid/2, 3,4,5, 6-pentafluoro-1-vinyl phenyl sulfonate/allyl triethoxysilane/vinyl sulfonic acid copolymer, 10-15 parts of cordierite-based glass fiber, 1-5 parts of nano boron fiber, 0.5-1.5 parts of phosphorus pentoxide, 1-3 parts of alkaline catalyst, 0.8-1.8 parts of antioxidant, 0.5-1.5 parts of lubricant and 3-5 parts of toughening agent. The invention also discloses a preparation method of the wear-resistant high-temperature-resistant high-strength composite material. The wear-resistant high-temperature-resistant high-strength composite material disclosed by the invention is good in mechanical property, good in wear resistance and weather resistance, excellent in high-temperature resistance and performance stability and long in service life.
Description
Technical Field
The invention relates to the technical field of composite materials, in particular to a wear-resistant high-temperature-resistant high-strength composite material and a preparation method thereof.
Background
In recent years, with the development of economy and the advancement of science and technology, composite materials are widely used in daily life of people as common materials, and play an important role in the development of modern science and technology. The research depth and the application range of the composite material and the speed and the scale of the production development of the composite material become one of the important marks for measuring the advanced level of the national science and technology. Such materials are generally materials composed of two or more materials of different properties, by physical or chemical means, which constitute, on a macroscopic (microscopic) scale, materials with new properties. The materials mutually make up for the deficiencies in performance to generate a synergistic effect, so that the comprehensive performance of the composite material is superior to that of the original composition material to meet various different requirements. Due to the designability of the performance, the material is widely applied to the fields of aerospace, national defense, traffic, sports and the like.
In the field of composite materials, glass fiber reinforced polymer matrix composites account for a significant proportion. Interfacial bonding between glass fibers and polymer matrix is an important factor in achieving high performance composites. The good interface combination is beneficial to the effective transmission of stress and improves the absorption of the polymer matrix to energy. The thermoplastic resin matrix is lack of reactive active functional groups and is difficult to generate good chemical bonding with fibers, so that the common composite material in the prior art has the problems of poor comprehensive performance, poor long-term high-temperature resistance, low shear strength, further improved oxidation resistance and the like, and the phenomena of phase separation and extravasation are easy to occur due to the addition of various additives, and the service life is short due to the poor weather resistance of the matrix polymer.
Chinese patent CN102775726A discloses a composite material of polyetheretherketone containing gadolinium oxide, which is prepared by adding sulfonated polyetheretherketone to modify gadolinium oxide, and then melting and blending with polyetheretherketone. The modulus and hardness of the composite material can be improved by adding the inorganic micro-nano particles into the polyether ketone matrix, but the melting point of the inorganic particles is generally higher, so that the thermal degradation of the organic material can be caused in the melt blending processing process; the uniform dispersion of organic and inorganic materials is difficult to realize by a physical blending mode, and the phenomenon of phase separation is easy to occur in the thermal forming process.
Chinese patent document CN 103012913 a discloses a heat-conducting wear-resistant composite material and a preparation method thereof. The composition comprises: 100 parts of plastic resin, 10-70 parts of molybdenum disulfide, 0-2 parts of coupling agent and 0-2 parts of processing aid. The patent claims that the prepared composite material has good wear resistance and heat conductivity, but because the molybdenum disulfide reinforcing effect is poor, the prepared composite material has poor mechanical property, and the use of the composite material is influenced.
Therefore, the development of the high-strength composite material with good mechanical property, good wear resistance and weather resistance, excellent high-temperature resistance and performance stability and long service life meets the market demand, has wide market value and application prospect, and has very important significance for promoting the development of the composite material industry.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide a wear-resistant high-temperature-resistant high-strength composite material and a preparation method thereof, wherein the preparation method is simple and easy to implement, has high preparation efficiency and yield, is suitable for continuous large-scale production, and realizes organic unification of economic benefit and social benefit; the high-strength composite material prepared by the preparation method has the advantages of good mechanical property, good wear resistance and weather resistance, excellent high-temperature resistance and performance stability and long service life.
The invention is realized by the following technical scheme: the wear-resistant high-temperature-resistant high-strength composite material is characterized by being prepared from the following components in parts by weight: 50-60 parts of phenolic hydroxyl terminated hyperbranched polyether ketone, 25-35 parts of methacryloxypropylsilatrane/trans-2- (4-chlorobenzene) ethylene boric acid/2, 3,4,5, 6-pentafluoro-1-vinyl phenyl sulfonate/allyl triethoxysilane/vinyl sulfonic acid copolymer, 10-15 parts of cordierite-based glass fiber, 1-5 parts of nano boron fiber, 0.5-1.5 parts of phosphorus pentoxide, 1-3 parts of alkaline catalyst, 0.8-1.8 parts of antioxidant, 0.5-1.5 parts of lubricant and 3-5 parts of toughening agent.
Preferably, the toughening agent is at least one of maleic anhydride graft modified ethylene octene copolymer, styrene-butadiene-styrene triblock copolymer, styrene-ethylene-butylene-styrene block copolymer or ethylene acrylic acid copolymer.
Preferably, the lubricant is one or two of calcium stearate and N, N' -ethylene bis stearamide.
Preferably, the antioxidant is at least one of antioxidant 1010, antioxidant 168 and antioxidant 1076.
Preferably, the basic catalyst is at least one of potassium carbonate, cesium carbonate and sodium carbonate.
Further, the preparation method of the methacryloxypropyl silatrane/trans-2- (4-chlorobenzene) ethylene boric acid/2, 3,4,5, 6-pentafluoro-1-vinyl phenyl sulfonate/allyl triethoxysilane/vinylsulfonic acid copolymer comprises the following steps: adding methacryloxypropylsilatrane, trans-2- (4-chlorobenzene) vinyl boric acid, 2,3,4,5, 6-pentafluoro-1-vinylsulfonic acid phenyl ester, allyl triethoxysilane, vinyl sulfonic acid and an initiator into a high-boiling-point solvent, stirring and reacting for 4-6 hours at 65-75 ℃ under the atmosphere of nitrogen or inert gas, precipitating in water, washing the precipitated polymer for 3-6 times by using ethanol, and then performing rotary evaporation to remove the ethanol to obtain the methacryloxypropylsilatrane/trans-2- (4-chlorobenzene) vinyl boric acid/2, 3,4,5, 6-pentafluoro-1-vinylsulfonic acid phenyl ester/allyl triethoxysilane/vinyl sulfonic acid copolymer.
Preferably, the mass ratio of the methacryloxypropylsilatrane to the trans-2- (4-chlorobenzene) ethyleneboronic acid to the phenyl 2,3,4,5, 6-pentafluoro-1-vinylsulfonate to the allyl triethoxysilane to the vinylsulfonic acid to the initiator to the high-boiling solvent is 2:0.5:1 (0.2-0.4) to 0.1 (0.03-0.05) to (15-20).
Preferably, the initiator is at least one of azobisisobutyronitrile and azobisisoheptonitrile.
Preferably, the high boiling point solvent is at least one of dimethyl sulfoxide, N-dimethylformamide, N-dimethylacetamide and N-methylpyrrolidone.
Preferably, the inert gas is one of helium, neon and argon.
Preferably, the branching degree of the phenolic hydroxyl terminated hyperbranched polyetherketone is 0.25, and the preparation method is as follows: sunyang, synthesis, crosslinking curing and performance study of novel hyperbranched polyetherketones [ D ]. Liaoning: university of California, 2009.DOI: 10.7666/d.y1480024.
Another object of the present invention is to provide a method for preparing the wear-resistant high-temperature-resistant high-strength composite material, which is characterized by comprising the following steps: mixing the components in parts by weight, adding the mixture into a high-speed stirrer, and stirring the mixture for 70 to 90 minutes at the temperature of between 50 and 70 ℃ to obtain a mixed material; and then adding the mixed material into a double-screw extruder, controlling the rotating speed of the screw at 270-270 ℃ and the temperature at 230-270 ℃, carrying out melt extrusion molding, and then drying and packaging in sequence to obtain the wear-resistant high-temperature-resistant high-strength composite material.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
(1) the preparation method of the wear-resistant high-temperature-resistant high-strength composite material provided by the invention is simple and feasible, has high preparation efficiency and yield, is suitable for continuous large-scale production, and realizes organic unification of economic benefits and social benefits.
(2) The wear-resistant high-temperature-resistant high-strength composite material provided by the invention overcomes the defects that the common composite material in the prior art is poor in comprehensive performance, poor in long-term high-temperature resistance, low in shearing strength, low in oxidation resistance, poor in weather resistance of a matrix polymer, easy to cause phase separation and exosmosis due to the addition of various additives, and short in service life due to the fact that the matrix polymer is poor in weather resistance, and has the advantages of being good in mechanical property, good in wear resistance and weather resistance, excellent in high-temperature resistance and performance stability and long in service life.
(3) The invention provides a wear-resistant high-temperature-resistant high-strength composite material, phenolic hydroxyl terminated hyperbranched polyetherketone and methacryloxypropylsilatrane/trans-2- (4-chlorobenzene) vinyl boric acid/2, 3,4,5, 6-pentafluoro-1-vinyl phenyl sulfonate/allyl triethoxysilane/vinyl sulfonic acid copolymer are blended to be used as a base material, the phenolic hydroxyl terminated hyperbranched polyetherketone on the phenolic hydroxyl terminated hyperbranched polyetherketone and the chlorphenyl on the copolymer, and a benzene ring on the phenolic hydroxyl terminated hyperbranched polyetherketone and a sulfonic group on the copolymer are easy to respectively carry out chemical reaction under the catalytic action of an alkaline catalyst and phosphorus pentoxide to form a three-dimensional network structure, so that the comprehensive performance of the composite material is effectively improved; the material has the advantages of a hyperbranched material by adopting the phenolic hydroxyl terminated hyperbranched polyetherketone, so that the material has better compatibility with other components, is more tightly connected, can better act in a synergistic manner, and effectively improves the high-temperature resistance; the structure of the propylsilatrane, the fluorine-containing phenyl sulfonate and the boron on the methacryloxypropylsilatrane/trans-2- (4-chlorobenzene) ethylene boric acid/2, 3,4,5, 6-pentafluoro-1-vinyl phenyl sulfonate/allyl triethoxysilane/vinyl sulfonic acid copolymer can improve the mechanical strength, the flame retardance, the weather resistance and the wear resistance of the composite material.
(4) According to the wear-resistant high-temperature-resistant high-strength composite material provided by the invention, the cordierite-based glass fiber and the nano boron fiber are added to have a synergistic effect and are used as reinforcing agents, so that the composite material can be well reinforced through a dispersion strengthening mechanism, and the high-temperature resistance of the composite material can be improved; the methacryloxypropyl silatrane/trans-2- (4-chlorobenzene) vinyl boric acid/2, 3,4,5, 6-pentafluoro-1-vinyl phenyl sulfonate/allyl triethoxysilane/ethoxysilane on the vinyl sulfonic acid copolymer molecular chain can also effectively improve the compatibility between the inorganic fillers and a polymer base material through a bridging effect, so that the inorganic fillers have better dispersion uniformity and are not easy to agglomerate and bleed out in the long-term use process, and the composite material has good performance stability and long service life.
Detailed Description
In order to make the technical solutions of the present invention better understood and make the above features, objects, and advantages of the present invention more comprehensible, the present invention is further described with reference to the following examples. The examples are intended to illustrate the invention only and are not intended to limit the scope of the invention.
The raw materials used in the following examples of the present invention were all purchased commercially, wherein the degree of branching of the phenolic hydroxyl terminated hyperbranched polyetherketone was 0.25, and the preparation method is as follows: sunyang, synthesis, crosslinking curing and performance study of novel hyperbranched polyetherketones [ D ]. Liaoning: university of great graduate, 2009.DOI 10.7666/d.y1480024; the polyetherketone PEEK L4000G was produced in Woundplast, Germany.
Example 1
A wear-resistant high-temperature-resistant high-strength composite material is prepared from the following components in parts by weight: 50 parts of phenolic hydroxyl terminated hyperbranched polyether ketone, 25 parts of methacryloxypropylsilatrane/trans-2- (4-chlorobenzene) ethylene boric acid/2, 3,4,5, 6-pentafluoro-1-vinyl phenyl sulfonate/allyl triethoxysilane/vinyl sulfonic acid copolymer, 10 parts of cordierite-based glass fiber, 1 part of nano boron fiber, 0.5 part of phosphorus pentoxide, 1 part of potassium carbonate, 10100.8 parts of antioxidant, 0.5 part of calcium stearate and 3 parts of maleic anhydride graft modified ethylene octene copolymer.
The preparation method of the methacryloxypropyl silatrane/trans-2- (4-chlorobenzene) ethylene boric acid/2, 3,4,5, 6-pentafluoro-1-vinyl phenyl sulfonate/allyl triethoxysilane/vinyl sulfonic acid copolymer comprises the following steps: adding methacryloxypropylsilatrane, trans-2- (4-chlorobenzene) vinyl boric acid, 2,3,4,5, 6-pentafluoro-1-vinylsulfonic acid phenyl ester, allyl triethoxysilane, vinyl sulfonic acid and azobisisobutyronitrile into dimethyl sulfoxide, stirring and reacting for 4 hours at 65 ℃ under a nitrogen atmosphere, then precipitating in water, washing the precipitated polymer for 3 times by using ethanol, and then removing the ethanol by rotary evaporation to obtain a methacryloxypropylsilatrane/trans-2- (4-chlorobenzene) vinyl boric acid/2, 3,4,5, 6-pentafluoro-1-vinylsulfonic acid phenyl ester/allyl triethoxysilane/vinyl sulfonic acid copolymer; the mass ratio of the methacryloxypropyl silatrane, the trans-2- (4-chlorobenzene) ethylene boric acid, the 2,3,4,5, 6-pentafluoro-1-vinyl phenyl sulfonate, the allyl triethoxysilane, the vinylsulfonic acid, the azobisisobutyronitrile and the dimethyl sulfoxide is 2:0.5:1:0.2:0.1:0.03: 15.
A preparation method of the wear-resistant high-temperature-resistant high-strength composite material comprises the following steps: mixing the components in parts by weight, adding the mixture into a high-speed stirrer, and stirring the mixture for 70min at 50 ℃ to obtain a mixed material; and then adding the mixed material into a double-screw extruder, controlling the rotating speed of the screws to be 270r/min and the temperature to be 230 ℃, carrying out melt extrusion molding, and then drying and packaging in sequence to obtain the wear-resistant high-temperature-resistant high-strength composite material.
Example 2
A wear-resistant high-temperature-resistant high-strength composite material is prepared from the following components in parts by weight: 52 parts of phenolic hydroxyl terminated hyperbranched polyether ketone, 27 parts of methacryloxypropyl silatrane/trans-2- (4-chlorobenzene) ethylene boric acid/2, 3,4,5, 6-pentafluoro-1-vinyl phenyl sulfonate/allyl triethoxysilane/vinyl sulfonic acid copolymer, 11 parts of cordierite-based glass fiber, 2 parts of nano boron fiber, 0.7 part of phosphorus pentoxide, 1.5 parts of cesium carbonate, 1681 part of antioxidant, 0.7 part of N, N' -ethylene bis stearamide and 3.5 parts of styrene-butadiene-styrene triblock copolymer.
The preparation method of the methacryloxypropyl silatrane/trans-2- (4-chlorobenzene) ethylene boric acid/2, 3,4,5, 6-pentafluoro-1-vinyl phenyl sulfonate/allyl triethoxysilane/vinyl sulfonic acid copolymer comprises the following steps: adding methacryloxypropylsilatrane, trans-2- (4-chlorobenzene) vinyl boric acid, 2,3,4,5, 6-pentafluoro-1-vinylsulfonic acid phenyl ester, allyl triethoxysilane, vinyl sulfonic acid and azobisisoheptonitrile into N, N-dimethylformamide, stirring and reacting for 4.5 hours at 67 ℃ under a helium atmosphere, then precipitating in water, washing the precipitated polymer for 4 times by using ethanol, and then removing the ethanol by rotary evaporation to obtain a methacryloxypropylsilatrane/trans-2- (4-chlorobenzene) vinyl boric acid/2, 3,4,5, 6-pentafluoro-1-vinylsulfonic acid phenyl ester/allyl triethoxysilane/vinyl sulfonic acid copolymer; the mass ratio of methacryloxypropyl silatrane, trans-2- (4-chlorobenzene) ethylene boric acid, 2,3,4,5, 6-pentafluoro-1-vinylsulfonic acid phenyl ester, allyl triethoxysilane, vinylsulfonic acid, azobisisoheptonitrile and N, N-dimethylformamide is 2:0.5:1:0.25:0.1:0.035: 16.
A preparation method of the wear-resistant high-temperature-resistant high-strength composite material comprises the following steps: mixing the components in parts by weight, adding the mixture into a high-speed stirrer, and stirring the mixture for 75min at the temperature of 55 ℃ to obtain a mixed material; and then adding the mixed material into a double-screw extruder, controlling the rotating speed of the screws to be 280r/min and the temperature to be 240 ℃, carrying out melt extrusion molding, and then drying and packaging in sequence to obtain the wear-resistant high-temperature-resistant high-strength composite material.
Example 3
A wear-resistant high-temperature-resistant high-strength composite material is prepared from the following components in parts by weight: 55 parts of phenolic hydroxyl terminated hyperbranched polyether ketone, 30 parts of methacryloxypropyl silatrane/trans-2- (4-chlorobenzene) ethylene boric acid/2, 3,4,5, 6-pentafluoro-1-vinyl phenyl sulfonate/allyl triethoxysilane/vinyl sulfonic acid copolymer, 13 parts of cordierite-based glass fiber, 2.5 parts of nano boron fiber, 1 part of phosphorus pentoxide, 2 parts of sodium carbonate, 1681.2 parts of antioxidant, 1 part of calcium stearate and 4 parts of styrene-ethylene-butylene-styrene block copolymer.
The preparation method of the methacryloxypropyl silatrane/trans-2- (4-chlorobenzene) ethylene boric acid/2, 3,4,5, 6-pentafluoro-1-vinyl phenyl sulfonate/allyl triethoxysilane/vinyl sulfonic acid copolymer comprises the following steps: adding methacryloxypropylsilatrane, trans-2- (4-chlorobenzene) vinyl boric acid, 2,3,4,5, 6-pentafluoro-1-vinylsulfonic acid phenyl ester, allyl triethoxysilane, vinyl sulfonic acid and azobisisobutyronitrile into N, N-dimethylacetamide, stirring and reacting for 5 hours at 70 ℃ in a neon atmosphere, precipitating in water, washing the precipitated polymer for 4 times by using ethanol, and then performing rotary evaporation to remove the ethanol to obtain a methacryloxypropylsilatrane/trans-2- (4-chlorobenzene) vinyl boric acid/2, 3,4,5, 6-pentafluoro-1-vinylsulfonic acid phenyl ester/allyl triethoxysilane/vinyl sulfonic acid copolymer; the mass ratio of methacryloxypropyl silatrane, trans-2- (4-chlorobenzene) ethylene boric acid, 2,3,4,5, 6-pentafluoro-1-vinyl phenyl sulfonate, allyl triethoxysilane, vinylsulfonic acid, azobisisobutyronitrile and N, N-dimethylacetamide is 2:0.5:1:0.3:0.1:0.04: 17.5.
A preparation method of the wear-resistant high-temperature-resistant high-strength composite material comprises the following steps: mixing the components in parts by weight, adding the mixture into a high-speed stirrer, and stirring the mixture for 80min at the temperature of 60 ℃ to obtain a mixed material; and then adding the mixed material into a double-screw extruder, controlling the rotating speed of the screws to be 300r/min and the temperature to be 250 ℃, carrying out melt extrusion molding, and then drying and packaging in sequence to obtain the wear-resistant high-temperature-resistant high-strength composite material.
Example 4
A wear-resistant high-temperature-resistant high-strength composite material is prepared from the following components in parts by weight: 58 parts of phenolic hydroxyl terminated hyperbranched polyether ketone, 33 parts of methacryloxypropyl silatrane/trans-2- (4-chlorobenzene) ethylene boric acid/2, 3,4,5, 6-pentafluoro-1-vinyl phenyl sulfonate/allyl triethoxysilane/vinyl sulfonic acid copolymer, 14 parts of cordierite-based glass fiber, 4 parts of nano boron fiber, 1.4 parts of phosphorus pentoxide, 2.5 parts of alkaline catalyst, 1.6 parts of antioxidant, 1.4 parts of lubricant and 4.5 parts of toughening agent.
The toughening agent is formed by mixing maleic anhydride graft modified ethylene octene copolymer, styrene-butadiene-styrene triblock copolymer, styrene-ethylene-butylene-styrene block copolymer and ethylene acrylic acid copolymer according to the mass ratio of 1:2:2: 3; the lubricant is formed by mixing calcium stearate and N, N' -ethylene bis stearamide according to the mass ratio of 3: 5; the antioxidant is prepared by mixing an antioxidant 1010, an antioxidant 168 and an antioxidant 1076 according to the mass ratio of 1:3: 4; the alkaline catalyst is prepared by mixing potassium carbonate, cesium carbonate and sodium carbonate according to the mass ratio of 2:3: 5.
The preparation method of the methacryloxypropyl silatrane/trans-2- (4-chlorobenzene) ethylene boric acid/2, 3,4,5, 6-pentafluoro-1-vinyl phenyl sulfonate/allyl triethoxysilane/vinyl sulfonic acid copolymer comprises the following steps: adding methacryloxypropylsilatrane, trans-2- (4-chlorobenzene) vinyl boric acid, 2,3,4,5, 6-pentafluoro-1-vinylsulfonic acid phenyl ester, allyl triethoxysilane, vinyl sulfonic acid and an initiator into a high boiling point solvent, stirring and reacting for 5.7 hours at 73 ℃ under an argon atmosphere, then precipitating in water, washing the precipitated polymer for 6 times by using ethanol, and then removing the ethanol by rotary evaporation to obtain a methacryloxypropylsilatrane/trans-2- (4-chlorobenzene) vinyl boric acid/2, 3,4,5, 6-pentafluoro-1-vinylsulfonic acid phenyl ester/allyl triethoxysilane/vinyl sulfonic acid copolymer; the mass ratio of the methacryloxypropyl silatrane to the trans-2- (4-chlorobenzene) vinyl boric acid to the 2,3,4,5, 6-pentafluoro-1-vinyl phenyl sulfonate to the allyl triethoxysilane to the vinyl sulfonic acid to the initiator to the high-boiling-point solvent is 2:0.5:1:0.38:0.1:0.047: 19; the initiator is formed by mixing azodiisobutyronitrile and azodiisoheptonitrile according to the mass ratio of 2: 3; the high boiling point solvent is formed by mixing dimethyl sulfoxide, N-dimethylformamide, N-dimethylacetamide and N-methylpyrrolidone according to a mass ratio of 1:2:3: 3.
A preparation method of the wear-resistant high-temperature-resistant high-strength composite material comprises the following steps: mixing the components in parts by weight, adding the mixture into a high-speed stirrer, and stirring for 88min at 67 ℃ to obtain a mixed material; and then adding the mixed material into a double-screw extruder, controlling the rotating speed of the screws to be 320r/min and the temperature to be 260 ℃, carrying out melt extrusion molding, and then drying and packaging in sequence to obtain the wear-resistant high-temperature-resistant high-strength composite material.
Example 5
A wear-resistant high-temperature-resistant high-strength composite material is prepared from the following components in parts by weight: 60 parts of phenolic hydroxyl terminated hyperbranched polyether ketone, 35 parts of methacryloxypropyl silatrane/trans-2- (4-chlorobenzene) ethylene boric acid/2, 3,4,5, 6-pentafluoro-1-vinyl phenyl sulfonate/allyl triethoxysilane/vinyl sulfonic acid copolymer, 15 parts of cordierite-based glass fiber, 5 parts of nano boron fiber, 1.5 parts of phosphorus pentoxide, 3 parts of cesium carbonate, 10761.8 parts of antioxidant, 1.5 parts of N, N' -ethylene bis stearamide and 5 parts of ethylene acrylic acid copolymer.
The preparation method of the methacryloxypropyl silatrane/trans-2- (4-chlorobenzene) ethylene boric acid/2, 3,4,5, 6-pentafluoro-1-vinyl phenyl sulfonate/allyl triethoxysilane/vinyl sulfonic acid copolymer comprises the following steps: adding methacryloxypropylsilatrane, trans-2- (4-chlorobenzene) vinyl boric acid, 2,3,4,5, 6-pentafluoro-1-vinylsulfonic acid phenyl ester, allyl triethoxysilane, vinyl sulfonic acid and azobisisobutyronitrile into N-methyl pyrrolidone, stirring and reacting for 6 hours at 75 ℃ in a nitrogen atmosphere, precipitating in water, washing the precipitated polymer for 6 times by using ethanol, and then performing rotary evaporation to remove the ethanol to obtain a methacryloxypropylsilatrane/trans-2- (4-chlorobenzene) vinyl boric acid/2, 3,4,5, 6-pentafluoro-1-vinylsulfonic acid phenyl ester/allyl triethoxysilane/vinyl sulfonic acid copolymer; the mass ratio of the methacryloxypropyl silatrane to the trans-2- (4-chlorobenzene) vinyl boric acid to the 2,3,4,5, 6-pentafluoro-1-vinyl phenyl sulfonate to the allyl triethoxysilane to the vinylsulfonic acid to the azodiisobutyronitrile to the N-methylpyrrolidone is 2:0.5:1:0.4:0.1:0.05: 20.
A preparation method of the wear-resistant high-temperature-resistant high-strength composite material comprises the following steps: mixing the components in parts by weight, adding the mixture into a high-speed stirrer, and stirring the mixture for 90min at 70 ℃ to obtain a mixed material; and then adding the mixed material into a double-screw extruder, controlling the rotating speed of the screws to be 330r/min and the temperature to be 270 ℃, carrying out melt extrusion molding, and then drying and packaging in sequence to obtain the wear-resistant high-temperature-resistant high-strength composite material.
Comparative example 1
The formula and the preparation method of the high-strength composite material are basically the same as those of the example 1, and the differences are only that: the phenolic hydroxyl group-terminated hyperbranched polyetherketone was replaced with polyetherketone PEEK L4000G.
Comparative example 2
The formula and the preparation method of the high-strength composite material are basically the same as those of the example 1, and the differences are only that: methacryloxypropylsilatrane/trans-2- (4-chlorobenzene) ethenylboronic acid/2, 3,4,5, 6-pentafluoro-1-ethenylbenzene sulfonate/allyltriethoxysilane/vinylsulfonic acid copolymer is prepared without addition of methacryloxypropylsilatrane.
Comparative example 3
The formula and the preparation method of the high-strength composite material are basically the same as those of the example 1, and the differences are only that: the preparation process of the methacryloxypropylsilatrane/trans-2- (4-chlorobenzene) ethenylboronic acid/2, 3,4,5, 6-pentafluoro-1-ethenylbenzene sulfonate/allyltriethoxysilane/vinylsulfonic acid copolymer does not add 2,3,4,5, 6-pentafluoro-1-ethenylbenzene sulfonate.
Comparative example 4
The formula and the preparation method of the high-strength composite material are basically the same as those of the example 1, and the differences are only that: the preparation of methacryloxypropylsilatrane/trans-2- (4-chlorobenzene) ethenylboronic acid/2, 3,4,5, 6-pentafluoro-1-ethenylbenzene sulphonate/allyltriethoxysilane/vinylsulphonic acid copolymer was carried out without addition of vinylsulphonic acid.
Comparative example 5
The formula and the preparation method of the high-strength composite material are basically the same as those of the example 1, and the differences are only that: no nano boron fibers were added.
In order to further illustrate the beneficial technical effects of the embodiments of the present invention, the respective wear-resistant high-temperature-resistant high-strength composite materials of the embodiments 1 to 5 of the present invention and the comparative examples 1 to 5 were subjected to the related performance tests, and the test methods and the test results are shown in table 1.
TABLE 1
As can be seen from table 1, the wear-resistant and high-temperature-resistant high-strength composite material disclosed in the embodiment of the present invention has more excellent mechanical properties and flame retardancy, which is a result of the synergistic effect of the components.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The wear-resistant high-temperature-resistant high-strength composite material is characterized by being prepared from the following components in parts by weight: 50-60 parts of phenolic hydroxyl terminated hyperbranched polyether ketone, 25-35 parts of methacryloxypropylsilatrane/trans-2- (4-chlorobenzene) ethylene boric acid/2, 3,4,5, 6-pentafluoro-1-vinyl phenyl sulfonate/allyl triethoxysilane/vinyl sulfonic acid copolymer, 10-15 parts of cordierite-based glass fiber, 1-5 parts of nano boron fiber, 0.5-1.5 parts of phosphorus pentoxide, 1-3 parts of alkaline catalyst, 0.8-1.8 parts of antioxidant, 0.5-1.5 parts of lubricant and 3-5 parts of toughening agent.
2. The wear-resistant high-temperature-resistant high-strength composite material as claimed in claim 1, wherein the toughening agent is at least one of maleic anhydride graft modified ethylene octene copolymer, styrene-butadiene-styrene triblock copolymer, styrene-ethylene-butylene-styrene block copolymer or ethylene acrylic acid copolymer.
3. The composite material of claim 1, wherein the lubricant is one or two of calcium stearate and N, N' -ethylene bis stearamide.
4. The wear-resistant high-temperature-resistant high-strength composite material as claimed in claim 1, wherein the antioxidant is at least one of antioxidant 1010, antioxidant 168 and antioxidant 1076.
5. The composite material of claim 1, wherein the basic catalyst is at least one of potassium carbonate, cesium carbonate, and sodium carbonate.
6. The wear-resistant high-temperature-resistant high-strength composite material as claimed in claim 1, wherein the preparation method of the methacryloxypropylsilatrane/trans-2- (4-chlorobenzene) ethenylboronic acid/2, 3,4,5, 6-pentafluoro-1-ethenylbenzene vinylsulfonate/allyltriethoxysilane/vinylsulfonic acid copolymer comprises the following steps: adding methacryloxypropylsilatrane, trans-2- (4-chlorobenzene) vinyl boric acid, 2,3,4,5, 6-pentafluoro-1-vinylsulfonic acid phenyl ester, allyl triethoxysilane, vinyl sulfonic acid and an initiator into a high-boiling-point solvent, stirring and reacting for 4-6 hours at 65-75 ℃ under the atmosphere of nitrogen or inert gas, precipitating in water, washing the precipitated polymer for 3-6 times by using ethanol, and then performing rotary evaporation to remove the ethanol to obtain the methacryloxypropylsilatrane/trans-2- (4-chlorobenzene) vinyl boric acid/2, 3,4,5, 6-pentafluoro-1-vinylsulfonic acid phenyl ester/allyl triethoxysilane/vinyl sulfonic acid copolymer.
7. The wear-resistant high-temperature-resistant high-strength composite material as claimed in claim 6, wherein the mass ratio of methacryloxypropyl silatrane, trans-2- (4-chlorobenzene) ethyleneboronic acid, 2,3,4,5, 6-pentafluoro-1-vinylsulfonic acid phenyl ester, allyltriethoxysilane, vinylsulfonic acid, initiator and high-boiling-point solvent is 2:0.5:1 (0.2-0.4):0.1 (0.03-0.05): 15-20).
8. The composite material of claim 6, wherein the initiator is at least one of azobisisobutyronitrile and azobisisoheptonitrile; the high boiling point solvent is at least one of dimethyl sulfoxide, N-dimethylformamide, N-dimethylacetamide and N-methylpyrrolidone; the inert gas is one of helium, neon and argon.
9. The wear-resistant high-temperature-resistant high-strength composite material as claimed in any one of claims 1 to 8, wherein the preparation method of the wear-resistant high-temperature-resistant high-strength composite material comprises the following steps: mixing the components in parts by weight, adding the mixture into a high-speed stirrer, and stirring the mixture for 70 to 90 minutes at the temperature of between 50 and 70 ℃ to obtain a mixed material; and then adding the mixed material into a double-screw extruder, controlling the rotating speed of the screw at 270-270 ℃ and the temperature at 230-270 ℃, carrying out melt extrusion molding, and then drying and packaging in sequence to obtain the wear-resistant high-temperature-resistant high-strength composite material.
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| CN112028540A (en) * | 2020-09-14 | 2020-12-04 | 赵良文 | Environment-friendly water-retaining mortar plasticizer and preparation method thereof |
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Application publication date: 20200619 |