Polyacrylate material and preparation method therefor

Abstract

Disclosed in the present invention is a polyacrylate material, which comprises a component A and a component B, wherein the component A comprises the following raw materials in parts by weight: 30-100 parts of an acrylate, 0.1-40 parts of an acid cross-linking agent containing multiple alkenyls, 0.1-40 parts of an accelerant and 30-500 parts of water; and the component B comprises the following raw materials in parts by weight: 30-500 parts of water and 0.1-10 parts of an initiator. The polyacrylate material prepared in the present invention has the characteristics of high mechanical properties, high adhesiveness, porosity, high adsorbability, etc., and can be applied to the fields of water resistance and leakage stoppage, gas adsorption, chemical catalysis, etc.

Description

A polyacrylate material and preparation method thereof Technical Field

[0001] The invention belongs to the field of polymer materials, and in particular relates to a polyacrylate material and a preparation method thereof. Background Art

[0002] Polyacrylates are polymers based on acrylates. Their backbone is similar to polyacrylic acid, but their side chains are carboxylate cations. Most acrylate polymers exhibit advantages such as high modulus, high rigidity, heat resistance, and excellent insulation properties, making them widely used in electronics, machinery, construction, and chemical industries.

[0003] Polyacrylate hydrogels are currently widely used in catalysis, such as the catalytic decomposition of water to produce oxygen (Nat. Commun. 2023, 14, 818). Polyacrylate materials have also been widely commercialized in construction engineering and waterproofing and leak-proofing (ZL202011310539.9).

[0004] To improve the mechanical properties of polyacrylate materials or polyacrylate hydrogels, CN 107200806A discloses the addition of an ether crosslinker containing a triene functional group to a two-component acrylate grouting material to enhance the mechanical properties of the gel; CN 108299599 A discloses the addition of a crosslinker such as polyethylene glycol allyl ether to a two-component acrylate aqueous solution grouting material to enhance the material's strength. However, these crosslinkers disclosed in the prior art have numerous drawbacks in practical applications, such as poor compatibility with polyacrylate or low solubility in water. This can lead to delamination of the solution before curing or a rough, particle-forming surface of the cured polyacrylate material, affecting its appearance. Furthermore, compatibility issues can hinder the material's mechanical performance and may even reduce the material's mechanical strength to a certain extent. These issues restrict the use of polyacrylate materials.

[0005] Summary of the Invention

[0006] Based on this, the object of the present invention is to provide a polyacrylate material with good mechanical properties.

[0007] In order to achieve the above-mentioned object of the invention, the present invention includes the following technical solutions.

[0008] In one aspect, the present invention provides a polyacrylate material comprising component A and component B.

[0009] In parts by weight, the component A comprises the following raw materials: 30-100 parts of acrylate, 0.1-40 parts of a polyene-containing acid crosslinking agent, 0.1-40 parts of an accelerator, and 30-500 parts of water;

[0010] In parts by weight, the B component includes the following raw materials: 30-500 parts of water and 0.1-10 parts of initiator.

[0011] Wherein, the structure of the polyene-containing acid cross-linking agent is shown in formula (I):

[0012] wherein A1 and A2 are independently selected from the group consisting of hydrogen, carboxyl, sulfonic acid, phosphoric acid, and -C(=O)COOH, and at least one of A1 and A2 is not hydrogen;

[0013] R is selected from: one or more R1 substituted or unsubstituted C2-C containing -C=C- 12 Unsaturated chain hydrocarbon group, multiple R2 substituted or unsubstituted C3-C 12 Cycloalkyl, multiple R3 substituted or unsubstituted 3-12 membered heterocyclic groups, multiple R4 substituted or unsubstituted C6-C 20 Aryl, multiple R5 substituted or unsubstituted 5-18 membered heteroaryl groups, and the R contains at least two -C=C-;

[0014] Each R1 is independently selected from the group consisting of hydrogen, carboxyl, C1-C6 alkyl, C1-C6 alkoxy, C2-C6 alkenyl, C2-C6 alkynyl, -C(=O)COOH;

[0015] Each R2 is independently selected from the group consisting of hydrogen, carboxyl, C1-C6 alkyl, C1-C6 alkoxy, C2-C6 alkenyl, C2-C6 alkynyl, -C(=O)COOH, and at least two R2 are C2-C6 alkenyl;

[0016] Each R3 is independently selected from the group consisting of hydrogen, carboxyl, C1-C6 alkyl, C1-C6 alkoxy, C2-C6 alkenyl, C2-C6 alkynyl, -C(=O)COOH, and at least two R3 are C2-C6 alkenyl;

[0017] Each R4 is independently selected from the group consisting of hydrogen, carboxyl, C1-C6 alkyl, C1-C6 alkoxy, C2-C6 alkenyl, C2-C6 alkynyl, -C(=O)COOH, and at least two R4 are C2-C6 alkenyl;

[0018] Each R5 is independently selected from the group consisting of hydrogen, carboxyl, C1-C6 alkyl, C1-C6 alkoxy, C2-C6 alkenyl, C2-C6 alkynyl, -C(=O)COOH, and at least two R5 are C2-C6 alkenyl.

[0019] Preferably, the polyene-containing acid cross-linking agent is selected from the following compounds:

[0020] On the other hand, the present invention also provides a method for preparing the polyacrylate material, comprising the following steps:

[0021] The acrylate, crosslinking agent, accelerator and water are mixed uniformly to obtain component A;

[0022] The initiator is dissolved in water to obtain component B.

[0023] The present invention uses polyene-containing acids as crosslinking agents to prepare polyacrylic acid salt materials. The crosslinking effect of the polyene groups can improve the mechanical properties of the polyacrylic acid salt materials. The hydrophilicity of the carboxyl groups makes the crosslinking agent have good compatibility with both the polyacrylic acid salt and water, so that the crosslinking agent has good dispersibility in water and in the polyacrylic acid salt, and is not prone to aggregation during the curing process, thereby further effectively improving the crosslinking degree and mechanical properties of the polyacrylic acid salt materials, overcoming the problems of poor compatibility and decreased mechanical properties in the prior art.

[0024] The polyacrylate material prepared by the present invention has the characteristics of high mechanical properties, high adhesion, porosity, high adsorption, etc., and can be used in the fields of waterproofing, leak plugging, gas adsorption, chemical catalysis, etc. DETAILED DESCRIPTION

[0025] The technical solutions of the present invention are further illustrated by specific examples below. Those skilled in the art should understand that the examples are only for helping to understand the present invention and should not be regarded as specific limitations of the present invention.

[0026] Unless otherwise defined, all technical and scientific terms used in the present invention have the same meaning as those commonly understood by those skilled in the art. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0027] The terms "comprise," "comprising," and "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, apparatus, product, or device comprising a series of steps is not limited to the listed steps or modules but may optionally include steps not listed, or other steps inherent to the process, method, product, or device.

[0028] In this application, "plurality" refers to two or more. "And / or" describes the relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, or B exists alone. The character " / " generally indicates that the related objects are in an "or" relationship.

[0029] Unless otherwise specified, the raw materials and reagents used in the following examples can be obtained from conventional commercial sources. Unless otherwise specified, the processes used are conventional processes in the art. Unless otherwise specified, room temperature in the present invention refers to 25±5°C.

[0030] The term "substituted" herein refers to the replacement of a hydrogen radical in a particular structure with a group of a specified substituent. In the compounds described herein, when any variable (e.g., R1, etc.) occurs more than once in any component, its definition at each occurrence is independent of the definition at every other occurrence. Similarly, combinations of substituents and variables are permitted as long as such combinations stabilize the compound. It is understood that one of ordinary skill in the art can select substituents and substitution patterns for the compounds of the present invention to provide chemically stable compounds that can be readily synthesized from readily available raw materials using techniques in the art and the methods set forth below. If a substituent itself is substituted with more than one group, it is understood that these groups may be on the same carbon atom or on different carbon atoms as long as the structure is stable.

[0031] The term "alkyl" herein refers to a saturated aliphatic hydrocarbon group, including both branched and straight-chain groups, having a certain number of carbon atoms. For example, the definition of "C1-C6 alkyl" includes groups having 1, 2, 3, 4, 5, or 6 carbon atoms in a straight or branched chain. Specifically, "C1-C6 alkyl" includes methyl, ethyl, n-propyl, isopropyl, n-butyl, tert-butyl, isobutyl, pentyl, hexyl, and the like.

[0032] The term "unsaturated chain hydrocarbon group" in the present invention refers to branched and straight-chain unsaturated aliphatic hydrocarbon groups with a specific number of carbon atoms, that is, non-cyclic unsaturated chain hydrocarbon groups, and the carbon chain contains one or more carbon-carbon double bonds, or carbon-carbon triple bonds, such as: CH2=CHCH2-, -(CH2)8(CH=CH)CH3, -(CH2)7CH=CH2, -(CH2)8CH=CH2, etc.

[0033] The term "cycloalkyl" in the present invention refers to a monocyclic saturated aliphatic hydrocarbon group having a specific number of carbon atoms, for example: cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl.

[0034] The term "alkoxy" in the present invention refers to a group where an alkyl group is directly connected to oxygen, that is, a group with an -O-alkyl structure, such as -OCH3, -OCH2CH3, -OCH2CH2CH3, -O-CH2CH(CH3)2, -OCH2CH2CH2CH3, -O-CH(CH3)2, etc.

[0035] The term "heterocyclyl" in the present invention is a saturated or partially unsaturated monocyclic or polycyclic cyclic substituent (including cyclic, bridged, and spirocyclic) wherein one or more ring atoms are selected from N, O, or S(O)m (wherein m is an integer from 0 to 2) and the remaining ring atoms are carbon atoms, for example: morpholinyl, piperidinyl, tetrahydropyrrolyl, pyrrolidinyl, dihydroimidazolyl, dihydroisoxazolyl, dihydroisothiazolyl, dihydrooxadiazolyl, dihydrooxazolyl, dihydropyrazinyl, dihydropyrazolyl, dihydropyridinyl, dihydropyrimidinyl, dihydropyrrolyl, dihydrotetrazolyl, dihydrothiadiazolyl, dihydrothiazolyl, dihydrothiophenyl, dihydrotriazolyl, dihydroazetidinyl, tetrahydrofuranyl, tetrahydrothiophenyl, etc., and N-oxides thereof. The connection of the heterocyclic substituent can be achieved through a carbon atom or through a heteroatom.

[0036] The term "heteroaryl" herein refers to an aromatic ring containing one or more heteroatoms selected from O, N or S. Heteroaryl within the scope of the present invention includes, but is not limited to, quinolyl, pyrazolyl, pyrrolyl, thienyl, furyl, pyridyl, pyrimidinyl, pyrazinyl, triazolyl, imidazolyl, oxazolyl, isoxazolyl, pyridazinyl, benzofuranyl, benzothienyl, benzoxazole, indolyl, and the like; "heteroaryl" is also understood to include any N-oxide derivative of heteroaryl containing nitrogen.

[0037] In one embodiment of the present invention, a polyacrylate material is provided, comprising component A and component B.

[0038] In parts by weight, the component A comprises the following raw materials: 30-100 parts of acrylate, 0.1-40 parts of a polyene-containing acid crosslinking agent, 0.1-40 parts of an accelerator, and 30-500 parts of water;

[0039] In parts by weight, the component B includes the following raw materials: 30-500 parts of water and 0.1-10 parts of initiator.

[0040] In some embodiments, the component A comprises the following raw materials, in parts by weight: 35-80 parts of acrylate, 0.5-10 parts of a polyene-containing acid crosslinking agent, 1-10 parts of an accelerator, and 100-400 parts of water.

[0041] In some embodiments, the component A comprises the following raw materials, in parts by weight: 40-70 parts of acrylate, 0.5-10 parts of a polyene-containing acid crosslinking agent, 1-10 parts of an accelerator, and 100-400 parts of water.

[0042] In some embodiments, the component A comprises the following raw materials, in parts by weight: 40-60 parts of acrylate, 0.5-10 parts of a polyene-containing acid crosslinking agent, 1-10 parts of an accelerator, and 100-400 parts of water.

[0043] In some embodiments, the component A comprises the following raw materials, in parts by weight: 40-60 parts of acrylate, 0.8-6 parts of a polyene-containing acid crosslinking agent, 4-6 parts of an accelerator, and 200-300 parts of water.

[0044] In some embodiments, the component A includes the following raw materials, in parts by weight: 40-60 parts of acrylate, 0.8-6 parts of a polyene-containing acid crosslinking agent, 4-6 parts of an accelerator, and 240-260 parts of water.

[0045] In some embodiments, the component A comprises the following raw materials, in parts by weight: 40 parts of acrylate, 4-6 parts of a polyene-containing acid crosslinking agent, 4-6 parts of an accelerator, and 200-300 parts of water.

[0046] In some embodiments, the component A comprises the following raw materials, in parts by weight: 40 parts of acrylate, 4-6 parts of a polyene-containing acid crosslinking agent, 4-6 parts of an accelerator, and 240-260 parts of water.

[0047] In some embodiments, the component A comprises the following raw materials, in parts by weight: 60 parts of acrylate, 0.8-2 parts of a polyene-containing acid crosslinking agent, 4-6 parts of an accelerator, and 200-300 parts of water.

[0048] In some embodiments, the component A comprises the following raw materials, in parts by weight: 60 parts of acrylate, 0.8-2 parts of a polyene-containing acid crosslinking agent, 4-6 parts of an accelerator, and 240-260 parts of water.

[0049] In some embodiments, the component B includes the following raw materials, in parts by weight: 100-400 parts of water and 1-6 parts of initiator.

[0050] In some embodiments, the component B includes the following raw materials, in parts by weight: 200-300 parts of water and 4-6 parts of initiator.

[0051] In some embodiments, the component B includes the following raw materials, in parts by weight: 240-260 parts of water and 4-6 parts of initiator.

[0052] In some embodiments, the structure of the polyene-containing acid cross-linking agent is shown in formula (I):

[0053] wherein A1 and A2 are independently selected from the group consisting of hydrogen, carboxyl, sulfonic acid, phosphoric acid, and -C(=O)COOH, and at least one of A1 and A2 is not hydrogen;

[0054] R is selected from: one or more R1 substituted or unsubstituted C2-C containing -C=C- 12Unsaturated chain hydrocarbon group, multiple R2 substituted or unsubstituted C3-C 12 Cycloalkyl, multiple R3 substituted or unsubstituted 3-12 membered heterocyclic groups, multiple R4 substituted or unsubstituted C6-C 20 Aryl, multiple R5 substituted or unsubstituted 5-18 membered heteroaryl groups, and the R contains at least two -C=C-;

[0055] Each R1 is independently selected from the group consisting of hydrogen, carboxyl, C1-C6 alkyl, C1-C6 alkoxy, C2-C6 alkenyl, C2-C6 alkynyl, -C(=O)COOH;

[0056] Each R2 is independently selected from the group consisting of hydrogen, carboxyl, C1-C6 alkyl, C1-C6 alkoxy, C2-C6 alkenyl, C2-C6 alkynyl, -C(=O)COOH, and at least two R2 are C2-C6 alkenyl;

[0057] Each R3 is independently selected from the group consisting of hydrogen, carboxyl, C1-C6 alkyl, C1-C6 alkoxy, C2-C6 alkenyl, C2-C6 alkynyl, -C(=O)COOH, and at least two R3 are C2-C6 alkenyl;

[0058] Each R4 is independently selected from the group consisting of hydrogen, carboxyl, C1-C6 alkyl, C1-C6 alkoxy, C2-C6 alkenyl, C2-C6 alkynyl, -C(=O)COOH, and at least two R4 are C2-C6 alkenyl;

[0059] Each R5 is independently selected from the group consisting of hydrogen, carboxyl, C1-C6 alkyl, C1-C6 alkoxy, C2-C6 alkenyl, C2-C6 alkynyl, -C(=O)COOH, and at least two R5 are C2-C6 alkenyl.

[0060] In some embodiments, A1 and A2 are independently selected from hydrogen, carboxyl, and at least one of A1 and A2 is not hydrogen.

[0061] In some embodiments, R is selected from: one or more R1 substituted or unsubstituted C2-C6 unsaturated chain hydrocarbon groups containing -C=C-, multiple R2 substituted or unsubstituted C3-C6 cycloalkyl groups, multiple R3 substituted or unsubstituted 5-6 membered heterocyclic groups, multiple R4 substituted or unsubstituted C6-C 20 Aryl, multiple R5-substituted or unsubstituted 5-18-membered heteroaryl groups;

[0062] Each R1 is independently selected from the group consisting of hydrogen, carboxyl, C1-C3 alkyl, C1-C3 alkoxy, C2-C3 alkenyl, C2-C3 alkynyl, -C(=O)COOH;

[0063] Each R2 is independently selected from the group consisting of hydrogen, carboxyl, C1-C3 alkyl, C1-C3 alkoxy, C2-C3 alkenyl, C2-C3 alkynyl, -C(=O)COOH, and at least two R2 are C2-C3 alkenyl;

[0064] Each R3 is independently selected from the group consisting of hydrogen, carboxyl, C1-C3 alkyl, C1-C3 alkoxy, C2-C3 alkenyl, C2-C3 alkynyl, -C(=O)COOH, and at least two R3 are C2-C3 alkenyl;

[0065] Each R4 is independently selected from the group consisting of hydrogen, carboxyl, C1-C3 alkyl, C1-C3 alkoxy, C2-C3 alkenyl, C2-C3 alkynyl, -C(=O)COOH, and at least two R4 are C2-C3 alkenyl;

[0066] Each R5 is independently selected from the group consisting of hydrogen, carboxyl, C1-C3 alkyl, C1-C3 alkoxy, C2-C3 alkenyl, C2-C3 alkynyl, -C(=O)COOH, and at least two R5 are C2-C3 alkenyl.

[0067] In some embodiments, the heterocyclic group is selected from the group consisting of tetrahydrofuranyl, tetrahydropyrrolyl, tetrahydrothienyl, and piperidinyl;

[0068] The aryl group is selected from the group consisting of phenyl, biphenyl, naphthyl, anthracenyl, phenanthrenyl, fluorenyl, triphenylenyl, pyrenyl, and perylenyl;

[0069] The heteroaryl group is selected from the group consisting of pyridyl, pyrimidinyl, triazine, dithiophene, silafluorene, carbazolyl, thienyl, furyl, thiazolyl, pyrazinyl, and oxadiazolyl.

[0070] In some embodiments, the polyene-containing acid cross-linking agent is selected from the following compounds:

[0071] In some embodiments, the acrylate is a combination of one or more of magnesium acrylate, calcium acrylate, magnesium methacrylate, and calcium methacrylate.

[0072] In some embodiments, the accelerator is a combination of one or more of triethanolamine, diethanolamine, stannous chloride, sodium thiosulfate, sodium dithionite, ferrous sulfate, ferrous chloride, cobalt naphthenate, lead isooctanoate, ferrous ammonium sulfate, ammonium sulfite, sodium sulfite, potassium sulfite, magnesium sulfite and calcium sulfite.

[0073] In some embodiments, the initiator is a combination of one or more of potassium persulfate, ammonium persulfate, sodium persulfate, methyl ethyl ketone peroxide and cyclohexanone peroxide.

[0074] In some embodiments, the mass ratio of component A to component B is 1:0.1-2.0.

[0075] In some embodiments, the mass ratio of component A to component B is 1:0.5-1.5.

[0076] In some embodiments, the mass ratio of component A to component B is 1:0.8-1.2.

[0077] The present invention also provides a method for preparing the polyacrylate material, comprising the following steps:

[0078] The acrylate, crosslinking agent, accelerator and water are mixed uniformly to obtain component A;

[0079] The initiator is dissolved in water to obtain component B.

[0080] The present invention uses polyene-containing acids as crosslinking agents to prepare polyacrylic acid salt materials. The crosslinking effect of the polyene groups can improve the mechanical properties of the polyacrylic acid salt materials. The hydrophilicity of the carboxyl groups makes the crosslinking agent have good compatibility with both the polyacrylic acid salt and water, so that the crosslinking agent has good dispersibility in water and in the polyacrylic acid salt, and is not prone to aggregation during the curing process, thereby further effectively improving the crosslinking degree and mechanical properties of the polyacrylic acid salt materials, overcoming the problems of poor compatibility and decreased mechanical properties in the prior art.

[0081] The polyacrylate material prepared by the present invention has the characteristics of high mechanical properties, high adhesion, porosity, high adsorption, etc., and can be used in the fields of waterproofing, leak plugging, gas adsorption, chemical catalysis, etc.

[0082] The following are specific examples.

[0083] Example 1 Two-component polyacrylate material

[0084] Component A: 40 parts by weight of magnesium acrylate, 1 part by weight of a cross-linking agent, 5 parts by weight of an accelerator (ferrous sulfate) and 250 parts by weight of water are uniformly mixed to obtain component A.

[0085] Among them, the cross-linking agent is

[0086] Component B: 5 parts by weight of an initiator (sodium persulfate) was dissolved in 100 parts by weight of water to obtain component B.

[0087] When in use, mix component A and component B in a weight ratio of 1:1 and allow to react and cure at room temperature.

[0088] Example 2 Two-component polyacrylate material

[0089] Component A: 40 parts by weight of magnesium acrylate, 1 part by weight of a cross-linking agent, 5 parts by weight of an accelerator (ferrous sulfate) and 250 parts by weight of water are uniformly mixed to obtain component A.

[0090] Among them, the cross-linking agent is

[0091] Component B: 5 parts by weight of an initiator (sodium persulfate) was dissolved in 100 parts by weight of water to obtain component B.

[0092] When in use, mix component A and component B in a weight ratio of 1:1 and allow to react and cure at room temperature.

[0093] Example 3 Two-component polyacrylate material

[0094] Component A: 40 parts by weight of magnesium acrylate, 1 part by weight of a cross-linking agent, 5 parts by weight of an accelerator (ferrous sulfate) and 250 parts by weight of water are uniformly mixed to obtain component A.

[0095] Among them, the cross-linking agent is

[0096] Component B: 5 parts by weight of an initiator (sodium persulfate) was dissolved in 100 parts by weight of water to obtain component B.

[0097] When in use, mix component A and component B in a weight ratio of 1:1 and allow to react and cure at room temperature.

[0098] Example 4 Two-component polyacrylate material

[0099] Component A: 40 parts by weight of magnesium acrylate, 1 part by weight of a cross-linking agent, 5 parts by weight of an accelerator (ferrous sulfate) and 250 parts by weight of water are uniformly mixed to obtain component A.

[0100] Among them, the cross-linking agent is

[0101] Component B: 5 parts by weight of an initiator (sodium persulfate) was dissolved in 100 parts by weight of water to obtain component B.

[0102] When in use, mix component A and component B in a weight ratio of 1:1 and allow to react and cure at room temperature.

[0103] Example 5 Two-component polyacrylate material

[0104] Component A: 40 parts by weight of magnesium acrylate, 5 parts by weight of a cross-linking agent, 5 parts by weight of an accelerator (ferrous sulfate) and 250 parts by weight of water are uniformly mixed to obtain component A.

[0105] Among them, the cross-linking agent is

[0106] Component B: 5 parts by weight of an initiator (sodium persulfate) was dissolved in 100 parts by weight of water to obtain component B.

[0107] When in use, mix component A and component B in a weight ratio of 1:1 and allow to react and cure at room temperature.

[0108] Example 6 Two-component polyacrylate material

[0109] Component A: 40 parts by weight of magnesium acrylate, 5 parts by weight of a cross-linking agent, 5 parts by weight of an accelerator (ferrous sulfate) and 250 parts by weight of water are uniformly mixed to obtain component A.

[0110] Among them, the cross-linking agent is

[0111] Component B: 5 parts by weight of an initiator (sodium persulfate) was dissolved in 100 parts by weight of water to obtain component B.

[0112] When in use, mix component A and component B in a weight ratio of 1:1 and allow to react and cure at room temperature.

[0113] Example 7 Two-component polyacrylate material

[0114] Component A: 60 parts by weight of magnesium acrylate, 1 part by weight of a cross-linking agent, 5 parts by weight of an accelerator (ferrous sulfate) and 250 parts by weight of water are uniformly mixed to obtain component A.

[0115] Among them, the cross-linking agent is

[0116] Component B: 5 parts by weight of an initiator (sodium persulfate) was dissolved in 100 parts by weight of water to obtain component B.

[0117] When in use, mix component A and component B in a weight ratio of 1:1 and allow to react and cure at room temperature.

[0118] Example 8 Two-component polyacrylate material

[0119] Component A: 60 parts by weight of magnesium acrylate, 1 part by weight of a cross-linking agent, 5 parts by weight of an accelerator (ferrous sulfate) and 250 parts by weight of water are uniformly mixed to obtain component A.

[0120] Among them, the cross-linking agent is

[0121] Component B: 5 parts by weight of an initiator (sodium persulfate) was dissolved in 100 parts by weight of water to obtain component B.

[0122] When in use, mix component A and component B in a weight ratio of 1:1 and allow to react and cure at room temperature.

[0123] Example 9 Two-component polyacrylate material

[0124] Component A: 40 parts by weight of magnesium acrylate, 1 part by weight of a cross-linking agent, 5 parts by weight of an accelerator (potassium sulfite) and 250 parts by weight of water are uniformly mixed to obtain component A.

[0125] Among them, the cross-linking agent is

[0126] Component B: 5 parts by weight of an initiator (sodium persulfate) was dissolved in 100 parts by weight of water to obtain component B.

[0127] When in use, mix component A and component B in a weight ratio of 1:1 and allow to react and cure at room temperature.

[0128] Example 10 Two-component polyacrylate material

[0129] Component A: 40 parts by weight of magnesium acrylate, 1 part by weight of a cross-linking agent, 5 parts by weight of an accelerator (triethanolamine) and 250 parts by weight of water are uniformly mixed to obtain component A.

[0130] Among them, the cross-linking agent is

[0131] Component B: 5 parts by weight of an initiator (sodium persulfate) was dissolved in 100 parts by weight of water to obtain component B.

[0132] When in use, mix component A and component B in a weight ratio of 1:1 and allow to react and cure at room temperature.

[0133] Example 11 Two-component polyacrylate material

[0134] Component A: 40 parts by weight of magnesium acrylate, 1 part by weight of a cross-linking agent, 5 parts by weight of an accelerator (ferrous sulfate) and 250 parts by weight of water are uniformly mixed to obtain component A.

[0135] Among them, the cross-linking agent is

[0136] Component B: 5 parts by weight of an initiator (ammonium persulfate) was dissolved in 100 parts by weight of water to obtain component B.

[0137] When in use, mix component A and component B in a weight ratio of 1:1 and allow to react and cure at room temperature.

[0138] Example 12 Two-component polyacrylate material

[0139] Component A: 40 parts by weight of magnesium acrylate, 1 part by weight of a cross-linking agent, 5 parts by weight of an accelerator (ferrous sulfate) and 250 parts by weight of water are uniformly mixed to obtain component A.

[0140] Among them, the cross-linking agent is

[0141] Component B: 5 parts by weight of an initiator (potassium persulfate) was dissolved in 100 parts by weight of water to obtain component B.

[0142] When in use, mix component A and component B in a weight ratio of 1:1 and allow to react and cure at room temperature.

[0143] Comparative Example 1 Two-component polyacrylate material

[0144] Component A: 40 parts by weight of magnesium acrylate, 5 parts by weight of an accelerator (ferrous sulfate) and 250 parts by weight of water are mixed uniformly to obtain component A.

[0145] Component B: 5 parts by weight of an initiator (sodium persulfate) was dissolved in 100 parts by weight of water to obtain component B.

[0146] When in use, mix component A and component B in a weight ratio of 1:1 and allow to react and cure at room temperature.

[0147] Comparative Example 2 Two-component polyacrylate material

[0148] Component A: 40 parts by weight of magnesium acrylate, 1 part by weight of a cross-linking agent, 5 parts by weight of an accelerator (ferrous sulfate) and 250 parts by weight of water are uniformly mixed to obtain component A.

[0149] Wherein, the cross-linking agent is glycerol triallyl ether.

[0150] Component B: 5 parts by weight of an initiator (sodium persulfate) was dissolved in 100 parts by weight of water to obtain component B.

[0151] When in use, mix component A and component B in a weight ratio of 1:1 and allow to react and cure at room temperature.

[0152] Comparative Example 3 Two-component polyacrylate material

[0153] Component A: 40 parts by weight of magnesium acrylate, 1 part by weight of a cross-linking agent, 5 parts by weight of an accelerator (ferrous sulfate) and 250 parts by weight of water are uniformly mixed to obtain component A.

[0154] Wherein, the cross-linking agent is polyethylene glycol allyl ether.

[0155] Component B: 5 parts by weight of an initiator (sodium persulfate) was dissolved in 100 parts by weight of water to obtain component B.

[0156] When in use, mix component A and component B in a weight ratio of 1:1 and allow to react and cure at room temperature.

[0157] The composition comparison of Examples 1 to 12 and Comparative Examples 1 to 3 is shown in Table 1.

[0158] Table 1. Composition of Examples 1 to 12 and Comparative Examples 1 to 3 (parts by weight)

[0159] The two-component polyacrylate materials prepared in Examples 1-12 and Comparative Examples 1-3 were mixed in a mass ratio of Component A to Component B of 1:1 and allowed to react and cure at room temperature for 1 hour to produce test samples of the polyacrylate material. In accordance with GB / T 16777-2008, the polyacrylate test samples were cut into polyacrylate test pieces measuring 1 cm thick and 13 cm long and wide by 4 cm. Performance testing was performed. The test results and material properties are shown in Table 2. The tensile strength test method in the table follows the method specified in 9.2.1 of GB / T 16777-2008.

[0160] Table 2. Tensile strength and material properties of the test pieces prepared in Examples 1 to 12 and Comparative Examples 1 to 3

[0161] As shown in the results in the table above, the addition of a polyene-containing acid crosslinker to Examples 1-12 of the present invention significantly enhances the tensile strength of the polyacrylate material compared to Comparative Examples 1-3. This is due to the crosslinking effect of the polyene groups, which improves the mechanical properties of the polyacrylate material. Furthermore, the hydrophilicity of the carboxyl groups in the acid crosslinker allows for excellent dispersibility both in water and in the polyacrylate, resulting in uniform mixing in the solution state without stratification. Aggregation is less likely to form during the curing process, and the resulting solid material exhibits a smooth, particle-free surface. This demonstrates that the crosslinker exhibits excellent compatibility with both the aqueous solution and the solid state of the polyacrylate material of the present invention, thereby effectively improving the mechanical properties of the polyacrylate material.

[0162] Compared with Example 4, the tensile strength of the polyacrylate material prepared in Example 5 is higher, which shows that increasing the amount of cross-linking agent added within a certain range can improve the mechanical properties of the polyacrylate material. However, when the amount added is too high, the acidity of the solution will be too strong, which will affect its cross-linking performance and the mechanical properties of the material.

[0163] Compared with Example 4, the tensile strength of the polyacrylate material prepared in Example 7 is higher, which shows that increasing the solid content of acrylate within a certain range can improve the mechanical properties of the obtained polyacrylate material.

[0164] The polyacrylate material prepared by the present invention has good mechanical properties and appearance, can withstand relatively extreme chemical environments and high temperature and high pressure environments, and can be more effectively applied to waterproofing and leak-proofing, gas adsorption, chemical catalysis and other fields.

[0165] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0166] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A polyacrylate material, characterized in that, it comprises component A and component B, by weight, component A comprises the following raw materials: 30 - 100 parts of acrylate, 0.1 - 40 parts of polyene-based acid crosslinking agent, 0.1 - 40 parts of accelerator, and 30 - 500 parts of water; by weight, component B comprises the following raw materials: 30 - 500 parts of water and 0.1 - 10 parts of initiator.

2. The polyacrylate material according to claim 1, characterized in that, by weight, component A comprises the following raw materials: 40 - 60 parts of acrylate, 0.5 - 10 parts of polyene-based acid crosslinking agent, 1 - 10 parts of accelerator, and 100 - 400 parts of water; and / or, by weight, component B comprises the following raw materials: 100 - 400 parts of water and 1 - 6 parts of initiator.

3. The polyacrylate material according to claim 2, characterized in that, by weight, component A comprises the following raw materials: 40 - 60 parts of acrylate, 0.8 - 6 parts of polyene-based acid crosslinking agent, 4 - 6 parts of accelerator, and 200 - 300 parts of water; and / or, by weight, component B comprises the following raw materials: 200 - 300 parts of water and 4 - 6 parts of initiator.

4. The polyacrylate material according to any one of claims 1 - 3, characterized in that, The structure of the polyene-based acid crosslinking agent is shown in formula (I) as follows: Wherein, A 1 and A 2 are each independently selected from: hydrogen, carboxyl group, sulfonic acid group, phosphoric acid group, -C(=O)COOH, and at least one of A 1 and A 2 is not hydrogen; R is selected from: one or more Rs 1 substituted or unsubstituted C containing -C=C- 2 -C 12 unsaturated hydrocarbon radical, multiple Rs 2 substituted or unsubstituted C 3 -C 12 cycloalkyl radical, multiple Rs 3 substituted or unsubstituted 3- to 12-membered heterocyclic radical, multiple Rs 4 substituted or unsubstituted C 6 -C 20 aryl group, multiple Rs 5 substituted or unsubstituted 5- to 18-membered heteroaryl group, and at least two -C=C- are contained in the said Rs; Each R 1 is independently selected from: hydrogen, carboxyl, C 1 -C 6 alkyl, C 1 -C 6 alkoxy, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, -C(=O)COOH; Each R 2 is independently selected from: hydrogen, carboxyl, C 1 -C 6 alkyl, C 1 -C 6 alkoxy, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, -C(=O)COOH, and at least two Rs 2 are C 2 -C 6 alkenyl; Each R 3 is independently selected from: hydrogen, carboxyl, C 1 -C 6 alkyl, C 1 -C 6 alkoxy, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, -C(=O)COOH, and at least two Rs 3 are C 2 -C 6 alkenyl; Each R 4 is independently selected from: hydrogen, carboxyl, C 1 -C 6 alkyl, C 1 -C 6 alkoxy, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, -C(=O)COOH, and at least two Rs 4 is C 2 -C 6 alkenyl; Each R 5 is independently selected from: hydrogen, carboxyl, C 1 -C 6 alkyl, C 1 -C 6 alkoxy, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, -C(=O)COOH, and at least two Rs 5 are C 2 -C 6 alkenyl.

5. The polyacrylate material according to claim 4, characterized in that, R is selected from: one or more Rs 1 substituted or unsubstituted C containing -C=C- 2 -C 6 unsaturated hydrocarbon radical, multiple Rs 2 substituted or unsubstituted C 3 -C 6 cycloalkyl, multiple Rs 3 substituted or unsubstituted 5- to 6-membered heterocyclic group, multiple Rs 4 substituted or unsubstituted C 6 -C 20 aryl, multiple Rs 5 substituted or unsubstituted 5- to 18-membered heteroaryl; Each R 1 is independently selected from: hydrogen, carboxyl, C 1 -C 3 -alkyl, C 1 -C 3 -alkoxy, C 2 -C 3 -alkenyl, C 2 -C 3 -alkynyl, -C(=O)COOH; Each R 2 is independently selected from: hydrogen, carboxyl, C 1 -C 3 alkyl, C 1 -C 3 alkoxy, C 2 -C 3 alkenyl, C 2 -C 3 alkynyl, -C(=O)COOH, and at least two Rs 2 are C 2 -C 3 alkenyl; Each R 3 is independently selected from: hydrogen, carboxyl, C 1 -C 3 alkyl, C 1 -C 3 alkoxy, C 2 -C 3 alkenyl, C 2 -C 3 alkynyl, -C(=O)COOH, and at least two Rs 3 are C 2 -C 3 alkenyl; Each R 4 is independently selected from: hydrogen, carboxyl, C 1 -C 3 alkyl, C 1 -C 3 alkoxy, C 2 -C 3 alkenyl, C 2 -C 3 alkynyl, -C(=O)COOH, and at least two Rs 4 are C 2 -C 3 alkenyl; Each R 5 is independently selected from: hydrogen, carboxyl, C 1 -C 3 -alkyl, C 1 -C 3 -alkoxy, C 2 -C 3 -alkenyl, C 2 -C 3 -alkynyl, -C(=O)COOH, and at least two Rs 5 are C 2 -C 3 -alkenyl.

6. The polyacrylate material according to claim 5, characterized in that, the heterocyclic group is selected from: tetrahydrofuranyl, pyrrolidinyl, thiolanyl, piperidinyl; the aryl group is selected from: phenyl, biphenyl, naphthyl, anthryl, phenanthryl, fluorenyl, benzophenanthryl, pyrenyl, perylenyl; the heteroaryl group is selected from: pyridyl, pyrimidinyl, triazinyl, dibenzothiophenyl, silafluorene, carbazolyl, thiophenyl, furyl, thiazolyl, pyrazinyl, oxadiazolyl.

7. The polyacrylate material according to claim 4, characterized in that, The polyene group-containing acid crosslinking agent is selected from the following compounds:

8. The polyacrylate material according to any one of claims 1 - 4, characterized in that, the acrylate is one or a combination of more of magnesium acrylate, calcium acrylate, magnesium methacrylate and calcium methacrylate; and / or, the accelerator is one or a combination of more of triethanolamine, diethanolamine, stannous chloride, sodium thiosulfate, sodium dithionite, ferrous sulfate, ferrous chloride, cobalt naphthenate, lead isooctanoate, ammonium ferrous sulfate, ammonium sulfite, sodium sulfite, potassium sulfite, magnesium sulfite and calcium sulfite; and / or, the initiator is one or a combination of more of potassium persulfate, ammonium persulfate, sodium persulfate, methyl ethyl ketone peroxide and cyclohexanone peroxide.

9. The polyacrylate material according to any one of claims 1 - 4, characterized in that, the mass ratio of component A to component B is 1:0.1 - 2.

0.

10. A preparation method of the polyacrylate material according to any one of claims 1 - 9, characterized in that, it comprises the following steps: mix the acrylate, crosslinking agent, accelerator and water evenly to obtain component A; dissolve the initiator in water to obtain component B.

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