CN115850911A - Synthetic resin with high hardness and corrosion resistance - Google Patents
Synthetic resin with high hardness and corrosion resistance Download PDFInfo
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- CN115850911A CN115850911A CN202211479456.1A CN202211479456A CN115850911A CN 115850911 A CN115850911 A CN 115850911A CN 202211479456 A CN202211479456 A CN 202211479456A CN 115850911 A CN115850911 A CN 115850911A
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Abstract
The invention discloses a synthetic resin with high hardness and corrosion resistance, and relates to the technical field of new materials. The high-hardness and high-corrosion-resistance synthetic resin prepared by the application is prepared by modifying epoxy resin serving as a base material, and adding modified silicon dioxide and titanium dioxide into the modified epoxy resin; the high-hardness and high-corrosion-resistance synthetic resin prepared by the method is applied to the side of an icebreaker in a cold region, the abrasion resistance and hardness of the epoxy resin are improved due to the compact network structure, and the brittleness of the epoxy resin is reduced due to the mutually wound molecular chains; the conductivity of the modified titanium dioxide is increased, and the ship board is heated when the modified titanium dioxide is electrified during ice breaking, so that the ice breaking efficiency is improved; the formation of the nano-protrusions reduces the resistance of water flow to the ship body, and the ice breaking efficiency is increased to a greater extent.
Description
Technical Field
The invention relates to the technical field of new materials, in particular to a synthetic resin with high hardness and corrosion resistance.
Background
With the development of the fields of aerospace, military equipment, automobiles, transportation industry, construction industry and the like and the progress of scientific technology, the requirements on the performance of the composite material taking the epoxy resin as the matrix are higher and higher. The epoxy resin is used as matrix resin, has the functions of bonding reinforcing materials together and transferring load, and the heat resistance, toughness, damp-heat resistance, strength and the like of the epoxy resin can directly influence the comprehensive performance of the composite material. The cured phenolic epoxy resin has high crosslinking density, and the coating has good adhesive force to the base material. But has the disadvantages of smaller wear resistance and hardness, larger brittleness and weaker mechanical property, and can not completely meet the requirements of modern high-performance composite materials. In recent years, a great deal of research is carried out at home and abroad on the modification of the novolac epoxy resin, and the aim is to improve the thermal stability and the toughness of the novolac epoxy resin.
The high-hardness and high-corrosion-resistance synthetic resin prepared by the method is applied to the side of an icebreaker in a cold region, the abrasion resistance and hardness of the epoxy resin are improved due to a compact network structure, and the brittleness of the epoxy resin is reduced due to the mutually wound molecular chains; the conductivity of the modified titanium dioxide is increased, and the ship board is heated when the modified titanium dioxide is electrified during ice breaking, so that the ice breaking efficiency is improved; the formation of the nano-protrusions reduces the resistance of water flow to the ship body, and the ice breaking efficiency is increased to a greater extent.
Disclosure of Invention
The present invention is directed to a synthetic resin with high hardness and high corrosion resistance to solve the problems of the background art.
In order to solve the technical problems, the invention provides the following technical scheme: a high-hardness and high-corrosion-resistance synthetic resin mainly comprises the following raw material components in parts by weight:
35-45 parts of modified epoxy resin, 10-15 parts of modified silicon dioxide, 1-3 parts of curing agent and 1-3 parts of antioxidant.
And optimally, the modified epoxy resin is prepared by taking epoxy resin as a base material, adding acid-dipped nano titanium dioxide into the epoxy resin, and then placing the mixture in a super-strong magnetic field with the frequency of 100kHz to 200kHz for 1 to 2h to obtain a finished product.
The modified silicon dioxide is optimized by treating the silicon dioxide with mixed acid solution, reacting with n-butyl bromide under the condition of adding a cross-linking agent, and introducing a hydrophobic long carbon chain to an active site of the silicon dioxide to obtain a finished product; the mixed acid solution is prepared by mixing 1.84g/ml sulfuric acid and 1.4g/ml nitric acid according to a volume ratio of 1.
Preferably, the acid solution used for acid leaching is one or a mixture of more of dilute hydrochloric acid, dilute sulfuric acid and hypochlorous acid with the pH value of 5.
Preferably, the cross-linking agent is one or a mixture of more of benzoyl peroxide, di-tert-butyl peroxide and diethylenetriamine.
Preferably, the curing agent is one or a mixture of more of diethylaminopropylamine DEAPA, trimethylhexamethylenediamine and dipropylenetriamine DPTA; the antioxidant is one or a mixture of more of butyl hydroxy anisol, dibutyl hydroxy toluene and tert-butyl hydroquinone.
As optimization, the preparation method of the synthetic resin with high hardness and corrosion resistance is characterized by comprising the following specific steps of:
(1) The preparation method of the modified silicon dioxide comprises the following steps: after being treated by mixed acid liquor, the silicon dioxide reacts with n-butyl bromide under the condition of adding a cross-linking agent, and a hydrophobic long carbon chain is introduced to an active site of the silicon dioxide to prepare modified silicon dioxide; the mixed acid liquid is prepared by mixing 1.84g/ml of sulfuric acid and 1.4g/ml of nitric acid according to a volume ratio of 1;
(2) The preparation method of the modified epoxy resin comprises the following steps: adding acid-dipped nano titanium dioxide into epoxy resin by taking the epoxy resin as a base material, and then placing the mixture in a super-strong magnetic field with the frequency of 100kHz to 200kHz for 1 to 2h to prepare modified epoxy resin;
(3) The preparation method of the synthetic resin with high hardness and corrosion resistance comprises the following steps: and (3) adding 5 parts of the modified silica obtained in the step (1) into 20 parts of the modified epoxy resin obtained in the step (2), uniformly dispersing, and then adding 1 part of a curing agent and 1 part of an antioxidant to prepare the synthetic resin with high hardness and corrosion resistance.
As an optimization, the preparation method of the modified silica in the step (1) comprises the following steps: weighing 1.84g/ml of sulfuric acid and 1.4g/ml of nitric acid, mixing the sulfuric acid and the nitric acid according to a volume ratio of 1.
As an optimization, the preparation method of the modified epoxy resin in the step (2) comprises the following steps: measuring 10ml of dilute hydrochloric acid, preparing the dilute hydrochloric acid into a dilute hydrochloric acid solution with the pH value of 5, weighing 10g of nano titanium dioxide, putting the nano titanium dioxide into the dilute hydrochloric acid solution, performing suction filtration on the nano titanium dioxide after 1 hour, washing a filter cake with deionized water, adding the filter cake into epoxy resin with the mass of 12-15 times that of the titanium dioxide, performing ultrasonic dispersion uniformly, and placing the resin in a super-strong magnetic field with the frequency of 100kHz-200kHz for 1-2h to obtain the modified epoxy resin.
Preferably, the preparation method of the synthetic resin with high hardness and corrosion resistance in the step (3) comprises the following steps: adding 10g of modified silicon dioxide into modified epoxy resin with the mass 4 times that of the modified silicon dioxide, adding antioxidant tert-butyl hydroquinone with the mass 0.5 time that of the modified silicon dioxide after uniform dispersion, adhering the epoxy resin to a ship body after uniform dispersion, and spraying curing agent trimethyl hexamethylene diamine with the mass 0.5 time that of the modified silicon dioxide to prepare the synthetic resin with high hardness and corrosion resistance.
Compared with the prior art, the invention has the following beneficial effects:
according to the preparation method, the epoxy resin is used as a raw material when the synthetic resin with high hardness and corrosion resistance is prepared, and the modified silicon dioxide and the titanium dioxide are added into the product after the epoxy resin is modified.
Firstly, epoxy resin is used as a raw material to prepare high-hardness and high-corrosion-resistance synthetic resin, and the epoxy resin has excellent bonding strength to the surfaces of metal and non-metal materials and good dielectric property;
secondly, adding modified silicon dioxide into the product, treating the nano silicon dioxide with mixed acid liquor by utilizing a large amount of hydroxyl on the surface of the nano silicon dioxide, introducing an anion active site on the hydroxyl on the surface of the nano silicon dioxide, then reacting with n-butyl bromide to graft the n-butyl bromide on the anion active site, and introducing a long carbon chain to prepare the modified silicon dioxide; the introduction of the long carbon chain effectively improves the hydrophobicity of the nano particles, improves the interface affinity of the nano silicon dioxide in the epoxy resin, the long chain structure can generate chain entanglement with an epoxy resin matrix, and a complex and compact network structure is formed in the epoxy resin, so that the modified nano silicon dioxide is dispersed more uniformly in the epoxy resin, the high hardness of the epoxy resin is increased, and the stability of the nano silicon dioxide in the resin is increased;
thirdly, titanium dioxide is added into the semi-finished resin product; adding nano titanium dioxide into epoxy resin after acid leaching, and then performing strong magnetic interference on the epoxy resin added with the nano titanium dioxide by using a high-frequency magnetic field to prepare modified epoxy resin; under the interference of the high-frequency magnetic field, the electron cloud density of the nano titanium dioxide is enhanced, so that the conductivity of the nano titanium dioxide is improved; the surface energy of the titanium dioxide is increased in the strong magnetic environment, so that the titanium dioxide is more uniformly dispersed in the epoxy resin; when the resin is molded and dried, the high surface energy of the titanium dioxide is gathered on the surface of the resin under the action of surface tension, and a layer of solid nano-protrusions is formed on the surface of the resin; the high-hardness and corrosion-resistant epoxy resin prepared by the method is applied to the side of an icebreaker in a cold area, the internal dense network structure of the epoxy resin enables the wear resistance and hardness of the epoxy resin to be improved, and the mutual winding molecular chains reduce the brittleness of the epoxy resin; the modified titanium dioxide has super-strong conductivity, and when the modified titanium dioxide is electrified during ice breaking, the ship board is heated, so that the ice breaking efficiency is improved; the resistance of water flow to the ship body is reduced due to the formation of the nano protrusions, the friction between the ship body with the ice surface is increased due to the uneven ship body, and the ice breaking efficiency is increased to a greater extent.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides the following technical scheme: a high-hardness and high-corrosion-resistance synthetic resin mainly comprises the following raw material components in parts by weight:
35 to 45 parts of modified epoxy resin, 10 to 15 parts of modified silicon dioxide, 1 to 3 parts of curing agent and 1 to 3 parts of antioxidant.
And optimally, the modified epoxy resin is prepared by taking epoxy resin as a base material, adding acid-dipped nano titanium dioxide into the epoxy resin, and then placing the mixture in a super-strong magnetic field with the frequency of 100kHz to 200kHz for 1 to 2h to obtain a finished product.
The modified silicon dioxide is optimized by treating the silicon dioxide with mixed acid solution, reacting with n-butyl bromide under the condition of adding a cross-linking agent, and introducing a hydrophobic long carbon chain to an active site of the silicon dioxide to obtain a finished product; the mixed acid solution is prepared by mixing 1.84g/ml sulfuric acid and 1.4g/ml nitric acid according to a volume ratio of 1.
Preferably, the acid solution used for acid leaching is one or a mixture of more of dilute hydrochloric acid, dilute sulfuric acid and hypochlorous acid with the pH value of 5.
Preferably, the cross-linking agent is one or a mixture of more of benzoyl peroxide, di-tert-butyl peroxide and diethylenetriamine.
Preferably, the curing agent is one or a mixture of more of diethylaminopropylamine DEAPA, trimethylhexamethylenediamine and dipropylenetriamine DPTA; the antioxidant is one or a mixture of more of butyl hydroxy anisol, dibutyl hydroxy toluene and tert-butyl hydroquinone.
As optimization, the preparation method of the synthetic resin with high hardness and corrosion resistance is characterized by comprising the following specific steps of:
(1) The preparation method of the modified silicon dioxide comprises the following steps: after being treated by mixed acid liquor, the silicon dioxide reacts with n-butyl bromide under the condition of adding a cross-linking agent, and a hydrophobic long carbon chain is introduced to an active site of the silicon dioxide to prepare modified silicon dioxide; the mixed acid solution is prepared by mixing 1.84g/ml of sulfuric acid and 1.4g/ml of nitric acid according to a volume ratio of 1;
(2) The preparation method of the modified epoxy resin comprises the following steps: adding acid-dipped nano titanium dioxide into epoxy resin by taking the epoxy resin as a base material, and then placing the mixture in a super-strong magnetic field with the frequency of 100kHz to 200kHz for 1 to 2h to prepare modified epoxy resin;
(3) The preparation method of the synthetic resin with high hardness and corrosion resistance comprises the following steps: and (3) adding 5 parts of the modified silicon dioxide obtained in the step (1) into 20 parts of the modified epoxy resin obtained in the step (2), uniformly dispersing, and then adding 1 part of curing agent and 1 part of antioxidant to prepare the synthetic resin with high hardness and corrosion resistance.
As an optimization, the preparation method of the modified silica in the step (1) comprises the following steps: weighing 1.84g/ml of sulfuric acid and 1.4g/ml of nitric acid, mixing the sulfuric acid and the nitric acid according to a volume ratio of 1.
As an optimization, the preparation method of the modified epoxy resin in the step (2) comprises the following steps: measuring 10ml of dilute hydrochloric acid, preparing the dilute hydrochloric acid into a dilute hydrochloric acid solution with the pH value of 5, weighing 10g of nano titanium dioxide, putting the nano titanium dioxide into the dilute hydrochloric acid solution, performing suction filtration on the nano titanium dioxide after 1 hour, washing a filter cake with deionized water, adding the filter cake into epoxy resin with the mass of 12-15 times that of the titanium dioxide, performing ultrasonic dispersion uniformly, and placing the resin in a super-strong magnetic field with the frequency of 100kHz-200kHz for 1-2h to obtain the modified epoxy resin.
Preferably, the preparation method of the synthetic resin with high hardness and corrosion resistance in the step (3) comprises the following steps: adding 10g of modified silicon dioxide into modified epoxy resin with the mass 4 times that of the modified silicon dioxide, adding antioxidant tert-butyl hydroquinone with the mass 0.5 time that of the modified silicon dioxide after uniform dispersion, adhering the epoxy resin to a ship body after uniform dispersion, and spraying curing agent trimethyl hexamethylene diamine with the mass 0.5 time that of the modified silicon dioxide to prepare the synthetic resin with high hardness and corrosion resistance.
Example 1: synthetic resin I with high hardness and corrosion resistance:
a synthetic resin with high hardness and high corrosion resistance comprises the following raw material components in parts by weight:
35 parts of modified epoxy resin, 10 parts of modified silica, 2 parts of curing agent and 2 parts of antioxidant.
The preparation method of the synthetic resin comprises the following steps:
(1) The preparation method of the modified silicon dioxide comprises the following steps: after being treated by mixed acid liquor, the silicon dioxide reacts with n-butyl bromide under the condition of adding a cross-linking agent, and a hydrophobic long carbon chain is introduced to an active site of the silicon dioxide to prepare modified silicon dioxide; the mixed acid solution is prepared by mixing 1.84g/ml of sulfuric acid and 1.4g/ml of nitric acid according to a volume ratio of 1;
(2) The preparation method of the modified epoxy resin comprises the following steps: adding acid-dipped nano titanium dioxide into epoxy resin by taking the epoxy resin as a base material, and then placing the mixture in a super-strong magnetic field with the frequency of 150kHz for 1h to prepare modified epoxy resin;
(3) The preparation method of the synthetic resin with high hardness and corrosion resistance comprises the following steps: and (3) adding 5 parts of the modified silica obtained in the step (1) into 20 parts of the modified epoxy resin obtained in the step (2), uniformly dispersing, and then adding 2 parts of a curing agent and 2 parts of an antioxidant to prepare the synthetic resin with high hardness and corrosion resistance.
As an optimization, the preparation method of the modified silica in the step (1) comprises the following steps: weighing 1.84g/ml of sulfuric acid and 1.4g/ml of nitric acid, mixing the sulfuric acid and the nitric acid according to a volume ratio of 1.
As an optimization, the preparation method of the modified epoxy resin in the step (2) comprises the following steps: weighing 10ml of dilute hydrochloric acid, preparing the dilute hydrochloric acid into a dilute hydrochloric acid solution with the pH value of 5, weighing 10g of nano titanium dioxide, putting the nano titanium dioxide into the dilute hydrochloric acid solution, performing suction filtration on the nano titanium dioxide after 1 hour, washing a filter cake with deionized water, adding the filter cake into epoxy resin with the mass 12 times that of the titanium dioxide, performing ultrasonic dispersion uniformly, and placing the resin in a super-strong magnetic field with the frequency of 150kHz for 2 hours to obtain the modified epoxy resin.
Preferably, the preparation method of the synthetic resin with high hardness and corrosion resistance in the step (3) comprises the following steps: adding 10g of modified silicon dioxide into modified epoxy resin with the mass 4 times that of the modified silicon dioxide, adding antioxidant tert-butyl hydroquinone with the mass 0.2 time that of the modified silicon dioxide after uniform dispersion, adhering the epoxy resin to a ship body after uniform dispersion, and spraying curing agent trimethyl hexamethylene diamine with the mass 0.2 time that of the modified silicon dioxide to prepare the synthetic resin with high hardness and corrosion resistance.
Example 2: high-hardness and corrosion-resistant synthetic resin II:
a synthetic resin with high hardness and high corrosion resistance comprises the following raw material components in parts by weight:
42 parts of modified epoxy resin, 13 parts of modified silica, 2 parts of curing agent and 3 parts of antioxidant.
As optimization, the preparation method of the synthetic resin with high hardness and corrosion resistance is characterized by comprising the following specific steps of:
(1) The preparation method of the modified silicon dioxide comprises the following steps: after being treated by mixed acid liquor, the silicon dioxide reacts with n-butyl bromide under the condition of adding a cross-linking agent, and a hydrophobic long carbon chain is introduced to an active site of the silicon dioxide to prepare modified silicon dioxide; the mixed acid liquid is prepared by mixing 1.84g/ml of sulfuric acid and 1.4g/ml of nitric acid according to a volume ratio of 1;
(2) The preparation method of the modified epoxy resin comprises the following steps: adding acid-dipped nano titanium dioxide into epoxy resin by taking the epoxy resin as a base material, and then placing the mixture in a super-strong magnetic field with the frequency of 200kHz for 2 hours to prepare modified epoxy resin;
(3) The preparation method of the synthetic resin with high hardness and corrosion resistance comprises the following steps: and (2) adding 5 parts of the modified silicon dioxide obtained in the step (1) into 20 parts of the modified epoxy resin obtained in the step (2), uniformly dispersing, and then adding 2 parts of a curing agent and 3 parts of an antioxidant to prepare the synthetic resin with high hardness and corrosion resistance.
As an optimization, the preparation method of the modified silica in the step (1) comprises the following steps: weighing 1.84g/ml sulfuric acid and 1.4g/ml nitric acid, mixing the sulfuric acid and the nitric acid according to a volume ratio of 1:3, weighing 10g nano-silica, immersing the nano-silica in a mixed acid solution, filtering the nano-silica after 2h, washing a filter cake with deionized water for three times, performing suction filtration, adding 20ml ethanol into a three-neck flask with a stirrer, weighing 5g of nano-silica after suction filtration, adding the nano-silica into the three-neck flask, raising the temperature to 50 ℃, slowly dripping 1.5ml n-butyl bromide, keeping the closed environment, raising the temperature to 70 ℃, stirring for reaction for 1.5h, washing with deionized water, and performing suction filtration to obtain modified silica.
As an optimization, the preparation method of the modified epoxy resin in the step (2) comprises the following steps: weighing 10ml of dilute hydrochloric acid, preparing the dilute hydrochloric acid into a dilute hydrochloric acid solution with the pH value of 5, weighing 10g of nano titanium dioxide, putting the nano titanium dioxide into the dilute hydrochloric acid solution, performing suction filtration on the nano titanium dioxide after 1 hour, washing a filter cake with deionized water, adding the filter cake into epoxy resin 13 times the mass of the titanium dioxide, performing ultrasonic dispersion uniformly, and placing the resin in a super-strong magnetic field with the frequency of 200kHz for 1 hour to prepare the modified epoxy resin.
Preferably, the preparation method of the synthetic resin with high hardness and corrosion resistance in the step (3) comprises the following steps: adding 10g of modified silicon dioxide into modified epoxy resin with the mass 4 times that of the modified silicon dioxide, adding antioxidant tert-butyl hydroquinone with the mass 0.3 time that of the modified silicon dioxide after uniform dispersion, adhering the epoxy resin to a ship body after uniform dispersion, and spraying curing agent trimethyl hexamethylene diamine with the mass 0.2 time that of the modified silicon dioxide to prepare the synthetic resin with high hardness and corrosion resistance.
Comparative example 1:
the formulation of comparative example 1 was the same as example 1. The synthetic resin was prepared by a method different from that of example 1 only in that the preparation process of step (1) was not performed, and the remaining preparation steps were the same as those of example 1.
Comparative example 2:
comparative example 2 was formulated as in example 1. The synthetic resin was prepared by a method different from that of example 1 only in that the preparation process of step (2) was not performed, and the remaining preparation steps were the same as those of example 1.
Comparative example 3:
the formulation of comparative example 3 was the same as example 1. The synthetic resin was prepared by a method different from that of example 1 only in that the preparation process of step (3) was not performed, and the remaining preparation steps were the same as those of example 1.
Test example 1:
the synthetic resins prepared in example 1, example 2 and comparative example 1 were subjected to abrasion resistance test. The test method comprises the following steps: the synthetic resins prepared in example 1, example 2 and comparative example 1, which had a mass of 20g, were respectively rubbed 1000 times and 2000 times under a load of 20N and then weighed, and the greater the weight, the better the abrasion resistance, compared to the weight of the synthetic resin after rubbing. The experimental results are as follows:
| example 1 | Example 2 | Comparative example 1 | |
| Mass before friction | 20.00g | 20.00g | 20.00g |
| Mass after 1000 times of friction | 19.93g | 19.97g | 19.45g |
| Mass after 2000 rubs | 19.66g | 19.80g | 18.51g |
As can be seen from the above table, after the abrasion resistance test, the synthetic resins of the components of examples 1 and 2 both showed good abrasion resistance, and the abrasion resistance of the synthetic resin of the component of comparative example 1 was much worse than that of the components of examples 1 and 2, which indicates that the hardness and abrasion resistance of the synthetic resin prepared in the present application are greatly increased, and the ice breaking efficiency can be effectively improved during the ice breaking operation.
Test example 2:
the synthetic resins prepared in example 1, example 2 and comparative example 2 were subjected to conductivity test, and the resistance of titanium dioxide in the synthetic resin was measured, and the higher the resistivity, the worse the conductivity, the lower the resistivity, and the better the conductivity, and the experimental results were as follows:
| example 1 | Example 2 | Comparative example 2 | |
| Resistivity/Ω · m | 19 | 17 | 30 |
The resistivity is an important index for representing the electricity-losing performance of the conductive material, and the higher the resistivity is, the poorer the conductivity is, and the lower the resistivity is, the better the conductivity is. As can be seen from the above table, the resistance of the titanium dioxide in the synthetic resin prepared by the components of examples 1 and 2 is small, and the conductivity is good, and the resistance of the titanium dioxide in the synthetic resin prepared by the component of comparative example 2 is larger than the resistance of the components of examples 1 and 2, which shows that the electron cloud density of the titanium dioxide increases after the titanium dioxide is subjected to strong magnetic interference, so that the conductivity of the titanium dioxide in the resin is improved, and the ship board generates heat when electricity is applied during ice breaking, so that the ice breaking efficiency is improved.
It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (2)
1. A synthetic resin with high hardness and corrosion resistance is characterized in that: the synthetic resin comprises the following raw material components in parts by weight:
42 parts of modified epoxy resin, 13 parts of modified silica, 2 parts of curing agent and 3 parts of antioxidant;
the preparation method of the modified silicon dioxide comprises the following steps: weighing 1.84g/ml of sulfuric acid and 1.4g/ml of nitric acid, mixing the sulfuric acid and the nitric acid according to a volume ratio of 1;
the preparation method of the modified epoxy resin comprises the following steps: weighing 10ml of dilute hydrochloric acid, preparing the dilute hydrochloric acid into a dilute hydrochloric acid solution with the pH value of 5, weighing 10g of nano titanium dioxide, putting the nano titanium dioxide into the dilute hydrochloric acid solution, performing suction filtration on the nano titanium dioxide after 1 hour, washing a filter cake with deionized water, adding the filter cake into epoxy resin 13 times the mass of the titanium dioxide, performing ultrasonic dispersion uniformly, and placing the resin in a super-strong magnetic field with the frequency of 200kHz for 1 hour to prepare modified epoxy resin;
the preparation method of the synthetic resin comprises the following specific steps:
(1) The preparation method of the modified silicon dioxide comprises the following steps: after being treated by mixed acid liquor, the silicon dioxide reacts with n-butyl bromide under the condition of adding a cross-linking agent, and a hydrophobic long carbon chain is introduced to the active site of the silicon dioxide to prepare modified silicon dioxide; the mixed acid solution is prepared by mixing 1.84g/ml of sulfuric acid and 1.4g/ml of nitric acid according to a volume ratio of 1;
(2) The preparation method of the modified epoxy resin comprises the following steps: adding acid-dipped nano titanium dioxide into epoxy resin by taking the epoxy resin as a base material, and then placing the mixture in a super-strong magnetic field with the frequency of 200kHz for 2 hours to prepare modified epoxy resin;
(3) The preparation method of the synthetic resin with high hardness and corrosion resistance comprises the following steps: and (2) adding 5 parts of the modified silicon dioxide obtained in the step (1) into 20 parts of the modified epoxy resin obtained in the step (2), uniformly dispersing, and then adding 2 parts of a curing agent and 3 parts of an antioxidant to prepare the synthetic resin with high hardness and corrosion resistance.
2. The synthetic resin with high hardness and corrosion resistance according to claim 1, wherein: the preparation method of the synthetic resin with high hardness and corrosion resistance in the step (3) comprises the following steps: adding 10g of modified silicon dioxide into modified epoxy resin with the mass 4 times that of the modified silicon dioxide, adding antioxidant tert-butyl hydroquinone with the mass 0.3 time that of the modified silicon dioxide after uniform dispersion, adhering the epoxy resin to a ship body after uniform dispersion, and spraying curing agent trimethyl hexamethylene diamine with the mass 0.2 time that of the modified silicon dioxide to prepare the synthetic resin with high hardness and corrosion resistance.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211479456.1A CN115850911A (en) | 2021-04-23 | 2021-04-23 | Synthetic resin with high hardness and corrosion resistance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110442937.4A CN113088038B (en) | 2021-04-23 | 2021-04-23 | High-hardness corrosion-resistant synthetic resin and preparation method thereof |
| CN202211479456.1A CN115850911A (en) | 2021-04-23 | 2021-04-23 | Synthetic resin with high hardness and corrosion resistance |
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| KR100364237B1 (en) * | 1997-12-22 | 2003-02-19 | 제일모직주식회사 | Epoxy resin composition for sealing of semiconductor device |
| JP2007245682A (en) * | 2006-03-20 | 2007-09-27 | Nippon Steel Corp | Corrosion-resistant metallic coating steel material |
| US7884176B2 (en) * | 2007-10-05 | 2011-02-08 | Chung Shan Institute Of Science And Technology, Armaments Bureau, M.N.D. | Epoxy/modified silicon dioxide corrosion resistant nanocomposite material and preparation method thereof |
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| CN108530608A (en) * | 2018-03-19 | 2018-09-14 | 孙丽波 | A kind of Water-soluble methyl acrylic modified epoxy resin |
| CN109306225A (en) * | 2018-08-23 | 2019-02-05 | 国网湖南省电力有限公司 | A kind of high adhesion force super hydrophobic coating and its preparation method and application |
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