Novel interface agent for material surface and preparation method thereof

Abstract

The invention relates to the field of special materials, in particular to a novel interface agent for a material surface and a preparation method of the novel interface agent. The invention provides a novel interface agent for a material surface. The novel interface agent comprises the following raw materials: a polyurethane prepolymer, black phosphorus, copper phthalocyanine, a plasticizer, a filler and a catalyst. The novel interface agent is prepared by carefully selecting a polyurethane prepolymer as a substrate, skillfully integrating two unique components of black phosphorus and copper phthalocyanine, and supplementing a plasticizer, a filler and a catalyst according to a carefully proportioning ratio. Black phosphorus and copper phthalocyanine are creatively added, so that the novel interface agent has a unique structure and has good noise absorption capacity; meanwhile, the special structure can effectively promote crack repair and recover the integrity and function of the interface when the interface has microcracks or damages, and the service life of the material is effectively prolonged.

Description

Technical Field

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

[0002] As a crucial means of surface treatment of materials, interface agents are widely used in the surface improvement of various materials. Their core purpose is to significantly improve the adhesion, weather resistance, corrosion resistance and a series of other functional properties of the material surface. However, although traditional interface agents have shown certain effects in enhancing surface adhesion and providing basic protection, their limitations cannot be ignored. Specifically, traditional interface agents have obvious shortcomings in self-repair function and sound insulation performance. When the material suffers minor damage caused by external factors, traditional interface agents often cannot achieve self-repair, which not only affects the service life of the material, but may also lead to more serious consequences due to the accumulation of damage. At the same time, with the increasing noise pollution today, the performance of traditional interface agents in sound insulation and noise reduction is also inadequate, and it is difficult to meet the high standards for sound insulation performance of materials in modern buildings, transportation vehicles and home appliances. Faced with this situation, the market urgently needs a new interface agent that integrates self-repair and sound insulation functions. This new interface agent can not only effectively make up for the shortcomings of traditional interface agents, but also quickly self-repair when the material is damaged, thereby extending the service life of the material. 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 type of interface agent with self-repairing and noise reduction functions. Summary of the invention

[0004] In view of 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 function 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 the solvent is added for stirring and mixing. After the mixture is evenly mixed, nitrogen is replaced. After 3 to 4 replacements, copper phthalocyanine and catalyst are added, and then nitrogen is continued to be passed and heated for reaction. After the reaction is completed, a new interface agent reaction liquid is obtained;

[0012] S2 filtering, concentrating, drying and forming: cooling the novel interface agent reaction liquid obtained in step S1, filtering it, washing it with eluent for 2 to 3 times, collecting and combining the organic phase in the filtrate, concentrating the organic phase in the filtrate under reduced pressure, and then drying it in a drying oven to obtain the novel interface 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 dissolution and mixing reaction step S1, the temperature of the heating reaction is 80-100° C.; 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 S2 filtering, concentrating, drying and molding step, the temperature is lowered to 20-30°C; the drying temperature of the drying oven is 45-55°C.

[0017] Preferably, in the S2 filtering, concentrating, 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 novel interface agent for the surface of a material, wherein the raw materials of the novel interface agent include polyurethane prepolymer, black phosphorus, copper phthalocyanine, a plasticizer, a filler and a catalyst. The black phosphorus added in the raw materials can form a multi-layered mesh structure with the polyurethane prepolymer, and then under the action of the catalyst, the copper phthalocyanine can be accurately and effectively combined in the mesh pores, and then the plasticizer and the filler are combined to form a novel interface agent. When the interface agent acts on the surface of the material, due to the intricate mesh and mesh cell structure of copper phthalocyanine, external or internal noise can be absorbed, 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 type of 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, but are not intended to limit the best mode of implementation, nor to limit the content and protection scope of the present invention. Any product identical or similar to the present invention obtained by anyone under the inspiration of the present invention or by combining the features of the present invention with other prior arts shall fall within the protection scope 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 the field can be used. If no manufacturer is specified for the reagents or instruments used, they are all conventional reagent products that can be obtained commercially.

[0023] Example 1: A new type of interface agent for material surface, composed of 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 novel 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 2000rpm for stirring and mixing, wherein the volume ratio of water to ethanol is 1:3. 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 80°C, and the heating reaction is stirred 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 interface 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 then 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 interface agent.

[0028] Example 2: A new type of 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 novel 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 2500rpm for stirring and mixing, wherein the volume ratio of water to ethanol is 1:4. 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 90°C, and the heating reaction is stirred for 2.5 hours. After the reaction is completed, a new type of interface agent reaction liquid is obtained;

[0032] S2 filtration, concentration, drying and molding: The reaction solution of the new 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 new interface agent.

[0033] Example 3: A new type of 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 novel 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 the reactor, and then a mixture of water and ethanol is added and the stirring rate of the reactor is set to 3000rpm 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 heating reaction is stirred 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 interface 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 interface agent.

[0038] Example 4: A new type of 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 novel 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 2500rpm for stirring and mixing, wherein the volume ratio of water to ethanol is 1:4. 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 90°C, and the heating reaction is stirred 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 new 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 new interface agent.

[0043] Example 5: A new type of 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 novel 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 2500rpm for stirring and mixing, wherein the volume ratio of water to ethanol is 1:4. 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 90°C, and the heating reaction is stirred 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 new 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 new interface agent.

[0048] Example 6: A new type of interface agent for material surface, composed of 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; 0.025 parts of bismuth neodecanoate.

[0050] A method for preparing a novel 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 2500rpm for stirring and mixing, wherein the volume ratio of water to ethanol is 1:4. 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 90°C, and the heating reaction is stirred 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 new 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 new interface agent.

[0053] Example 7: A new type of 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; 0.025 parts of bismuth neodecanoate.

[0055] A method for preparing a novel 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 2500rpm for stirring and mixing, wherein the volume ratio of water to ethanol is 1:4. 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 90°C, and the heating reaction is stirred 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 new 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 new interface agent.

[0058] Example 8: A new type of 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 novel 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 2500rpm for stirring and mixing, wherein the volume ratio of water to ethanol is 1:4. 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 90°C, and the heating reaction is stirred 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 new 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 new interface agent.

[0063] The new interface agents prepared in Examples 1 to 8 were respectively 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-repairing and noise reduction performance tests were performed on the boxes of Examples 1 to 8 and Comparative Example 1. The test results are shown in the following table:

[0064]

[0065] Examples 1 to 3 are for screening the proportion of raw materials 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] It can be seen from the test results in the above table that Examples 1 to 5 all have certain self-repairing ability and good noise reduction ability, among which Example 5 has the strongest self-repairing ability and noise reduction ability; Examples 6 to 8 do not have self-repairing ability and have average noise reduction performance. In Example 6, because no black phosphorus is added to the raw materials, it is impossible to form a complex mesh structure with the polyurethane prepolymer, so copper phthalocyanine cannot combine with it, so the new interface agent prepared in Example 6 does not have self-repairing ability and noise reduction ability. In Example 7, because no copper phthalocyanine is added to the raw materials, there is no substance that cooperates with the mesh structure to repair itself, but because a complex mesh structure is formed, it has a certain noise reduction ability. In Example 8, because no catalyst is added, the number of copper phthalocyanines that combine with the mesh structure pores at the same time will be greatly reduced. Therefore, the new interface agent prepared in Example 8 does not have self-repairing ability, but because of the presence of a mesh structure, it has a certain noise reduction performance.

[0067] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention.

Claims

1. A new type of interface agent for material surface, characterized in that: It is composed of the following components 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. A 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 type of 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 the solvent is added for stirring and mixing. After the mixture is evenly mixed, nitrogen is replaced. After 3 to 4 replacements, copper phthalocyanine and catalyst are added, and then nitrogen is continued to be passed and heated for reaction. After the reaction is completed, a new interface agent reaction liquid is obtained; S2 filtering, concentrating, drying and forming: cooling the novel interface agent reaction liquid obtained in step S1, filtering it, washing it with eluent for 2 to 3 times, collecting and combining the organic phase in the filtrate, concentrating the organic phase in the filtrate under reduced pressure, and then drying it in a drying oven to obtain the novel interface agent.

6. The method for preparing a novel interface agent for material surface according to claim 5, characterized in that: 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).

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 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 S2 filtering, concentrating, drying and molding step, 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 filtering, concentrating, drying and forming step, the filtration is vacuum filtration; and the eluent is dichloromethane.

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