A novel interface agent for material surface and preparation method thereof

Abstract

The present invention relates to the field of special materials, and in particular to a new interface agent for material surfaces and a preparation method thereof. The present invention provides a new interface agent for material surfaces, the raw materials of which include polyurethane prepolymer, black phosphorus, copper phthalocyanine, plasticizer, filler and catalyst. This new interface agent uses a selected polyurethane prepolymer as a base, cleverly integrates two unique components, black phosphorus and copper phthalocyanine, supplemented by plasticizers, fillers and catalysts, and is carefully proportioned. The creative addition of black phosphorus and copper phthalocyanine gives the new interface agent a unique structure, giving it good noise absorption capacity; at the same time, this special structure can also effectively promote the repair of cracks when microcracks or damage occur on the interface, restore the integrity and function of the interface, and effectively extend the service life of the material.

Description

Technical Field

[0001] The present invention relates to the field of special materials, and in particular to a novel interface agent for material surfaces and a preparation method thereof. Background Art

[0002] As a crucial surface treatment method, interfacial agents are widely used to improve the surfaces of various materials. Their core purpose is to significantly enhance surface adhesion, weather resistance, corrosion resistance, and a range of other functional properties. However, while traditional interfacial agents have demonstrated some effectiveness in enhancing surface adhesion and providing basic protection, their limitations should not be overlooked. Specifically, traditional interfacial agents exhibit significant shortcomings in self-healing and sound insulation. When a material sustains minor damage from external factors, traditional interfacial agents often fail to self-repair, which not only shortens the material's service life but can also lead to more serious consequences due to cumulative damage. Furthermore, with increasing noise pollution, traditional interfacial agents are struggling to meet the stringent sound insulation standards demanded by modern architecture, transportation, and home appliances. Faced with this situation, the market urgently needs a new interfacial agent that combines both self-healing and sound insulation capabilities. This new interfacial agent not only effectively addresses the shortcomings of traditional interfacial agents but also rapidly self-repairs when damaged, thereby extending the material's service life. At the same time, its excellent sound insulation performance will greatly reduce the impact of environmental noise on people's lives and work, creating a quieter and more comfortable space for people.

[0003] Therefore, it is necessary to invent a new interface agent with self-repairing and noise reduction functions. Summary of the Invention

[0004] In response to the above-mentioned existing technical problems, the present invention aims to provide a new interface agent for material surface and a preparation method thereof. The new interface agent prepared by this method not only has the advantages of wear resistance and corrosion resistance of general interface agents, but also has self-repairing properties and good noise reduction functions that are different from other interface agents.

[0005] The present invention discloses a novel interface agent for material surface, which is composed of the following components in parts by weight:

[0006] 25-30 parts of polyurethane prepolymer; 5-7 parts of black phosphorus; 0.5-0.7 parts of copper phthalocyanine; 3-5 parts of plasticizer; 10-12 parts of filler; and 0.01-0.05 parts of catalyst.

[0007] Preferably, the plasticizer is dibutyl phthalate or a phosphate ester.

[0008] Preferably, the filler is calcium carbonate.

[0009] Preferably, the catalyst is dibutyltin dilaurate or bismuth neodecanoate.

[0010] The present invention also discloses a method for preparing a novel interface agent for a material surface, comprising the following process steps:

[0011] S1 dissolution and mixing reaction: polyurethane prepolymer, black phosphorus, plasticizer and filler are added to the reactor, and then solvent is added and stirred and mixed. After the mixture is evenly mixed, nitrogen is replaced. After replacement 3 to 4 times, copper phthalocyanine and catalyst are added, and nitrogen is continued to be passed and heated to react. After the reaction is completed, a new interface agent reaction liquid is obtained;

[0012] S2 filtration, concentration, drying and molding: The novel interfacial agent reaction solution obtained in step S1 is cooled, filtered, rinsed 2 to 3 times with eluent, the organic phase in the combined filtrate is collected, the organic phase in the filtrate is concentrated under reduced pressure, and then placed in a drying oven for drying to finally obtain the novel interfacial agent.

[0013] Preferably, in the dissolution and mixing reaction step S1, the solvent is a mixture of water and ethanol, wherein the volume ratio of water to ethanol is 1:(3-5).

[0014] Preferably, in the dissolving and mixing reaction step S1, the temperature of the heating reaction is 80-100° C.; and the duration of the heating reaction is 2-3 h.

[0015] Preferably, in the dissolution and mixing reaction step S1, the stirring rate of the reactor is 2000-3000 rpm.

[0016] Preferably, in the step S2 of filtering, concentrating, drying and forming, the temperature is lowered to 20-30°C; the drying temperature of the drying oven is 45-55°C.

[0017] Preferably, in the S2 filtration, concentration, drying and molding step, the filtration is vacuum filtration; and the eluent is dichloromethane.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention provides a new type of interface agent for material surface, and the raw materials of this new type of interface agent include polyurethane prepolymer, black phosphorus, copper phthalocyanine, plasticizer, filler and catalyst. The black phosphorus added to the raw materials can form a multi-layered network structure with the polyurethane prepolymer, and then under the action of the catalyst, the copper phthalocyanine can be accurately and effectively combined in the pores of the network layer, and then combined with the plasticizer and filler to form a new type of interface agent. When this interface agent acts on the surface of the material, due to the intricate network layer and the network cell structure of copper phthalocyanine, it can absorb external or internal noise, thereby playing a role in noise reduction; at the same time, when microcracks or damage occur on the interface, the synergistic effect of black phosphorus and copper phthalocyanine can effectively promote the repair of the cracks, restore the integrity and function of the interface, effectively extend the service life of the material, and play a role in energy saving and environmental protection.

[0020] The present invention also provides a method for preparing a new interface agent for material surface. In the S1 dissolution and mixing reaction step, nitrogen is replaced before adding the catalyst to ensure that the catalyst is not oxidized and ineffective. Therefore, nitrogen needs to be continuously introduced during the reaction to create an oxygen-free environment. DETAILED DESCRIPTION

[0021] The following examples are provided for a better understanding of the present invention and are not intended to limit the best mode of implementation. They do not limit the content and scope of protection of the present invention. Any product identical or similar to the present invention obtained by anyone under the guidance of the present invention or by combining the features of the present invention with other prior arts shall fall within the scope of protection of the present invention.

[0022] If no specific experimental steps or conditions are specified in the examples, the conventional experimental steps or conditions described in the literature in this field can be used. If the manufacturer of the reagents or instruments is not specified, they are all commercially available conventional reagents.

[0023] Example 1: A novel interface agent for material surface, comprising the following components in parts by weight:

[0024] 25 parts of polyurethane prepolymer; 5 parts of black phosphorus; 0.5 parts of copper phthalocyanine; 3 parts of dibutyl phthalate; 10 parts of calcium carbonate; and 0.01 parts of dibutyltin dilaurate.

[0025] A method for preparing a new interface agent for a material surface comprises the following steps:

[0026] S1 dissolution and mixing reaction: polyurethane prepolymer, black phosphorus, dibutyl phthalate and calcium carbonate are added to the reactor, and then a mixture of water and ethanol is added and the stirring rate of the reactor is set to 2000 rpm for stirring and mixing, wherein the volume ratio of water to ethanol is 1:3. After being mixed evenly, nitrogen is replaced. After 3 to 4 replacements, copper phthalocyanine and dibutyltin dilaurate are added, and then nitrogen is continued to be passed and heated for reaction. The heating reaction temperature is 80°C, and the heating reaction is stirred and heated for 2 hours. After the reaction is completed, a new interface agent reaction liquid is obtained;

[0027] S2 filtration, concentration, drying and molding: The reaction solution of the new interfacial agent obtained in step S1 is cooled to 20°C, then filtered under reduced pressure, rinsed with dichloromethane 2 to 3 times, the organic phase in the combined filtrate is collected, the organic phase in the filtrate is concentrated under reduced pressure and placed in a drying oven for drying, the drying temperature of the drying oven is set to 45°C, and dried for 10 hours to finally obtain the new interfacial agent.

[0028] Example 2: A new interface agent for material surface, composed of the following components in parts by weight:

[0029] 30 parts of polyurethane prepolymer; 6 parts of black phosphorus; 0.6 parts of copper phthalocyanine; 4 parts of dibutyl phthalate; 11 parts of calcium carbonate; and 0.025 parts of dibutyltin dilaurate.

[0030] A method for preparing a new interface agent for a material surface comprises the following steps:

[0031] S1 dissolution and mixing reaction: polyurethane prepolymer, black phosphorus, dibutyl phthalate and calcium carbonate are added to the reactor, and then a mixture of water and ethanol is added and the stirring rate of the reactor is set to 2500 rpm for stirring and mixing, wherein the volume ratio of water to ethanol is 1:4. After being mixed evenly, nitrogen is replaced. After 3 to 4 replacements, copper phthalocyanine and dibutyltin dilaurate are added, and then nitrogen is continued to be passed and heated for reaction. The heating reaction temperature is 90°C, and the heating reaction is stirred and heated for 2.5 hours. After the reaction is completed, a new interface agent reaction liquid is obtained;

[0032] S2 filtration, concentration, drying and molding: The reaction solution of the novel interface agent obtained in step S1 is cooled to 25°C, then filtered under reduced pressure, rinsed with dichloromethane 2 to 3 times, the organic phase in the combined filtrate is collected, the organic phase in the filtrate is concentrated under reduced pressure and then placed in a drying oven for drying, the drying temperature of the drying oven is set to 50°C, and dried for 10 hours to finally obtain the novel interface agent.

[0033] Example 3: A new interface agent for material surface, composed of the following components in parts by weight:

[0034] 35 parts of polyurethane prepolymer; 7 parts of black phosphorus; 0.7 parts of copper phthalocyanine; 5 parts of dibutyl phthalate; 12 parts of calcium carbonate; and 0.05 parts of dibutyltin dilaurate.

[0035] A method for preparing a new interface agent for a material surface comprises the following steps:

[0036] S1 dissolution and mixing reaction: polyurethane prepolymer, black phosphorus, dibutyl phthalate and calcium carbonate are added to a reactor, and then a mixture of water and ethanol is added and the stirring rate of the reactor is set to 3000 rpm for stirring and mixing, wherein the volume ratio of water to ethanol is 1:5. After being evenly mixed, nitrogen is replaced. After 3 to 4 replacements, copper phthalocyanine and dibutyltin dilaurate are added, and then nitrogen is continued to be passed and heated for reaction. The heating reaction temperature is 100°C, and the stirring and heating reaction is carried out for 3 hours. After the reaction is completed, a new interface agent reaction liquid is obtained;

[0037] S2 filtration, concentration, drying and molding: The reaction solution of the new interfacial agent obtained in step S1 is cooled to 30°C, then filtered under reduced pressure, rinsed with dichloromethane 2 to 3 times, the organic phase in the combined filtrate is collected, the organic phase in the filtrate is concentrated under reduced pressure and then placed in a drying oven for drying, the drying temperature of the drying oven is set to 55°C, and dried for 10 hours to finally obtain the new interfacial agent.

[0038] Example 4: A new interface agent for material surface, composed of the following components in parts by weight:

[0039] 30 parts of polyurethane prepolymer; 6 parts of black phosphorus; 0.6 parts of copper phthalocyanine; 4 parts of phosphate ester; 11 parts of calcium carbonate; and 0.025 parts of dibutyltin dilaurate.

[0040] A method for preparing a new interface agent for a material surface comprises the following steps:

[0041] S1 dissolution and mixing reaction: polyurethane prepolymer, black phosphorus, phosphate and calcium carbonate are added to the reactor, and then a mixture of water and ethanol is added and the stirring rate of the reactor is set to 2500 rpm for stirring and mixing, wherein the volume ratio of water to ethanol is 1:4. After being mixed evenly, nitrogen is replaced. After 3 to 4 replacements, copper phthalocyanine and dibutyltin dilaurate are added, and then nitrogen is continued to be passed and heated for reaction. The heating reaction temperature is 90°C, and the stirring and heating reaction is carried out for 2.5 hours. After the reaction is completed, a new interface agent reaction liquid is obtained;

[0042] S2 filtration, concentration, drying and molding: The reaction solution of the novel interface agent obtained in step S1 is cooled to 25°C, then filtered under reduced pressure, rinsed with dichloromethane 2 to 3 times, the organic phase in the combined filtrate is collected, the organic phase in the filtrate is concentrated under reduced pressure and then placed in a drying oven for drying, the drying temperature of the drying oven is set to 50°C, and dried for 10 hours to finally obtain the novel interface agent.

[0043] Example 5: A new interface agent for material surface, composed of the following components in parts by weight:

[0044] 30 parts of polyurethane prepolymer; 6 parts of black phosphorus; 0.6 parts of copper phthalocyanine; 4 parts of phosphate ester; 11 parts of calcium carbonate; and 0.025 parts of bismuth neodecanoate.

[0045] A method for preparing a new interface agent for a material surface comprises the following steps:

[0046] S1 dissolution and mixing reaction: polyurethane prepolymer, black phosphorus, phosphate and calcium carbonate are added to the reactor, and then a mixture of water and ethanol is added and the stirring rate of the reactor is set to 2500 rpm for stirring and mixing, wherein the volume ratio of water to ethanol is 1:4. After being mixed evenly, nitrogen is replaced. After 3 to 4 replacements, copper phthalocyanine and dibutyltin dilaurate are added, and then nitrogen is continued to be passed and heated for reaction. The heating reaction temperature is 90°C, and the stirring and heating reaction is carried out for 2.5 hours. After the reaction is completed, a new interface agent reaction liquid is obtained;

[0047] S2 filtration, concentration, drying and molding: The reaction solution of the novel interface agent obtained in step S1 is cooled to 25°C, then filtered under reduced pressure, rinsed with dichloromethane 2 to 3 times, the organic phase in the combined filtrate is collected, the organic phase in the filtrate is concentrated under reduced pressure and then placed in a drying oven for drying, the drying temperature of the drying oven is set to 50°C, and dried for 10 hours to finally obtain the novel interface agent.

[0048] Example 6: A novel interface agent for material surface, comprising the following components in parts by weight:

[0049] 30 parts of polyurethane prepolymer; 0.6 parts of copper phthalocyanine; 4 parts of phosphate ester; 11 parts of calcium carbonate; and 0.025 parts of bismuth neodecanoate.

[0050] A method for preparing a new interface agent for a material surface comprises the following steps:

[0051] S1 dissolution and mixing reaction: polyurethane prepolymer, black phosphorus, phosphate and calcium carbonate are added to the reactor, and then a mixture of water and ethanol is added and the stirring rate of the reactor is set to 2500 rpm for stirring and mixing, wherein the volume ratio of water to ethanol is 1:4. After being mixed evenly, nitrogen is replaced. After 3 to 4 replacements, copper phthalocyanine and dibutyltin dilaurate are added, and then nitrogen is continued to be passed and heated for reaction. The heating reaction temperature is 90°C, and the stirring and heating reaction is carried out for 2.5 hours. After the reaction is completed, a new interface agent reaction liquid is obtained;

[0052] S2 filtration, concentration, drying and molding: The reaction solution of the novel interface agent obtained in step S1 is cooled to 25°C, then filtered under reduced pressure, rinsed with dichloromethane 2 to 3 times, the organic phase in the combined filtrate is collected, the organic phase in the filtrate is concentrated under reduced pressure and then placed in a drying oven for drying, the drying temperature of the drying oven is set to 50°C, and dried for 10 hours to finally obtain the novel interface agent.

[0053] Example 7: A new interface agent for material surface, composed of the following components in parts by weight:

[0054] 30 parts of polyurethane prepolymer; 6 parts of black phosphorus; 4 parts of phosphate ester; 11 parts of calcium carbonate; and 0.025 parts of bismuth neodecanoate.

[0055] A method for preparing a new interface agent for a material surface comprises the following steps:

[0056] S1 dissolution and mixing reaction: polyurethane prepolymer, black phosphorus, phosphate and calcium carbonate are added to the reactor, and then a mixture of water and ethanol is added and the stirring rate of the reactor is set to 2500 rpm for stirring and mixing, wherein the volume ratio of water to ethanol is 1:4. After being mixed evenly, nitrogen is replaced. After 3 to 4 replacements, copper phthalocyanine and dibutyltin dilaurate are added, and then nitrogen is continued to be passed and heated for reaction. The heating reaction temperature is 90°C, and the stirring and heating reaction is carried out for 2.5 hours. After the reaction is completed, a new interface agent reaction liquid is obtained;

[0057] S2 filtration, concentration, drying and molding: The reaction solution of the novel interface agent obtained in step S1 is cooled to 25°C, then filtered under reduced pressure, rinsed with dichloromethane 2 to 3 times, the organic phase in the combined filtrate is collected, the organic phase in the filtrate is concentrated under reduced pressure and then placed in a drying oven for drying, the drying temperature of the drying oven is set to 50°C, and dried for 10 hours to finally obtain the novel interface agent.

[0058] Example 8: A new interface agent for material surface, composed of the following components in parts by weight:

[0059] 30 parts of polyurethane prepolymer; 6 parts of black phosphorus; 0.6 parts of copper phthalocyanine; 4 parts of phosphate ester; 11 parts of calcium carbonate.

[0060] A method for preparing a new interface agent for a material surface comprises the following steps:

[0061] S1 dissolution and mixing reaction: polyurethane prepolymer, black phosphorus, phosphate and calcium carbonate are added to the reactor, and then a mixture of water and ethanol is added and the stirring rate of the reactor is set to 2500 rpm for stirring and mixing, wherein the volume ratio of water to ethanol is 1:4. After being mixed evenly, nitrogen is replaced. After 3 to 4 replacements, copper phthalocyanine and dibutyltin dilaurate are added, and then nitrogen is continued to be passed and heated for reaction. The heating reaction temperature is 90°C, and the stirring and heating reaction is carried out for 2.5 hours. After the reaction is completed, a new interface agent reaction liquid is obtained;

[0062] S2 filtration, concentration, drying and molding: The reaction solution of the novel interface agent obtained in step S1 is cooled to 25°C, then filtered under reduced pressure, rinsed with dichloromethane 2 to 3 times, the organic phase in the combined filtrate is collected, the organic phase in the filtrate is concentrated under reduced pressure and then placed in a drying oven for drying, the drying temperature of the drying oven is set to 50°C, and dried for 10 hours to finally obtain the novel interface agent.

[0063] The new interface agents prepared in Examples 1 to 8 were applied to the surface of the same material, and the material containing the new interface agent was made into a box. At the same time, a box made of a material not containing the new interface agent was also prepared (Comparative Example 1). The self-repair and noise reduction performance of the boxes of Examples 1 to 8 and Comparative Example 1 were tested; the test results are shown in the following table:

[0064]

[0065] Examples 1 to 3 are for screening the raw material ratios of the new interface agent; Examples 4 and 2 are for screening plasticizers; Examples 4 and 5 are for screening catalysts; Example 6 is a new interface agent prepared without adding black phosphorus to the raw materials; Example 7 is a new interface agent prepared without adding copper phthalocyanine to the raw materials; Example 8 is a new interface agent prepared without adding a catalyst to the raw materials.

[0066] From the test results in the above table, it can be seen that Examples 1 to 5 all have certain self-repairing capabilities and good noise reduction capabilities, among which Example 5 has the strongest self-repairing and noise reduction capabilities; Examples 6 to 8 do not have self-repairing capabilities and have average noise reduction performance. In Example 6, because no black phosphorus was added to the raw materials, it could not form a complex network structure with the polyurethane prepolymer, and therefore copper phthalocyanine could not bind to it. Therefore, the new interface agent prepared in Example 6 did not have self-repairing and noise reduction capabilities. In Example 7, because no copper phthalocyanine was added to the raw materials, there was no substance that cooperated with the network structure to self-repair, but because a complex network structure was formed, it had certain noise reduction capabilities. In Example 8, because no catalyst was added, the number of copper phthalocyanines that bound to the pores of the network structure at the same time was greatly reduced. Therefore, the new interface agent prepared in Example 8 did not have self-repairing capabilities, but because of the presence of the network structure, it had certain noise reduction performance.

[0067] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A new type of interface agent for material surface, characterized in that: It is composed of the following components in parts by weight: 25-30 parts of polyurethane prepolymer; 5-7 parts of black phosphorus; 0.5-0.7 parts of copper phthalocyanine; 3-5 parts of plasticizer; 10-12 parts of filler; and 0.01-0.05 parts of catalyst.

2. A novel interface agent for material surface according to claim 1, characterized in that: The plasticizer is dibutyl phthalate or phosphate.

3. A novel interface agent for material surface according to claim 1, characterized in that: The filler is calcium carbonate.

4. The novel interface agent for material surface according to claim 1, characterized in that: The catalyst is dibutyltin dilaurate or bismuth neodecanoate.

5. A method for preparing a new interface agent for material surface, characterized in that: The following steps are involved: S1 dissolution and mixing reaction: polyurethane prepolymer, black phosphorus, plasticizer and filler are added to the reactor, and then solvent is added and stirred and mixed. After the mixture is evenly mixed, nitrogen is replaced. After replacement 3 to 4 times, copper phthalocyanine and catalyst are added, and nitrogen is continued to be passed and heated to react. After the reaction is completed, a new interface agent reaction liquid is obtained; S2 filtration, concentration, drying and molding: The novel interfacial agent reaction solution obtained in step S1 is cooled, filtered, rinsed 2 to 3 times with eluent, the organic phase in the combined filtrate is collected, the organic phase in the filtrate is concentrated under reduced pressure, and then placed in a drying oven for drying to finally obtain the novel interfacial agent.

6. The method for preparing a novel interface agent for material surface according to claim 5, characterized in that: In the dissolving and mixing reaction step S1, the solvent is a mixture of water and ethanol, wherein the volume ratio of water to ethanol is 1:(3-5).

7. The method for preparing a novel interface agent for material surface according to claim 5, characterized in that: In the dissolving and mixing reaction step S1, the temperature of the heating reaction is 80-100° C.; the duration of the heating reaction is 2-3 hours.

8. The method for preparing a novel interface agent for material surface according to claim 5, characterized in that: In the S1 dissolution and mixing reaction step, the stirring rate of the reactor is 2000-3000 rpm.

9. The method for preparing a novel interface agent for material surface according to claim 5, characterized in that: In the step S2 of filtering, concentrating, drying and forming, the temperature needs to be lowered to 20-30°C; the drying temperature of the drying oven is 45-55°C.

10. The method for preparing a novel interface agent for material surface according to claim 5, characterized in that: In the S2 filtration, concentration, drying and molding step, the filtration is vacuum filtration; and the eluent is dichloromethane.

Images