A reactive deodorizing agent matrix, its preparation method and application

Abstract

This invention provides a reactive deodorizing agent matrix, its preparation method, and its application, specifically relating to the field of deodorizing agent technology. The reactive deodorizing agent matrix provided by this invention, by mass percentage, comprises the following raw materials: 37-65% organic wax, 12-20% emulsifier, 1-5% butene copolymer, 1-3% antioxidant, 1-5% oxidant, and 20-30% zinc-containing compound. This invention utilizes the oxidant to induce the zinc-containing compound to react with the wax, emulsifier, butene copolymer, and antioxidant under specific conditions, forming a chelate centered on zinc ions. This chelate contains various functional groups that can interact with odor molecules to form chemical bonds, resulting in an irreversible chemical reaction under quasi-chelation, rapidly and permanently removing odor molecules. The antioxidant stabilizes the chemical bonds between the zinc ion chelate and the odor molecules, improving the long-term stability of the chemical bonds and maintaining the long-term stability of the deodorizing effect.

Description

Technical Field

[0001] This invention belongs to the field of deodorizing agent technology, specifically relating to a reactive deodorizing agent matrix, its preparation method, and its application. Background Technology

[0002] Polymer materials (rubber, plastics, thermoplastic elastomers, asphalt, etc.) are widely used due to their superior performance and low price. However, during the synthesis of basic materials, unreacted low-molecular-weight organic substances, organic substances with low degree of polymerization, and residual organic solvents are inevitably present. These organic substances will release harmful volatile organic compounds (VOCs) during further high-temperature processing or storage of polymer materials, polluting the air and endangering human health.

[0003] Existing technologies address the following approaches: (1) prolonged storage, which takes a long time and allows volatile substances to enter the air, causing pollution; (2) baking and / or boiling, which is currently the main method of deodorization. This method increases process costs and causes product aging and reduced performance. Moreover, this is only a way to transfer pollution, and volatile substances will still enter the air, causing pollution; (3) using adsorbent deodorizers, which reduce volatilization and odor by adsorbing odor molecules, such as zeolite and bubble stone. However, after using adsorbent deodorizers, odor molecules will be released from the adsorbent deodorizer during storage or reheating. Re-evaporation is a temporary solution, and adsorption-type deodorizers do not bind to polymer materials. They remain free in the entire material and rely on their loose pores to adsorb odor molecules and reduce odor. They are essentially impurities in the entire material and reduce the performance of polymer material products. (4) Using masking agents: Adding masking agents to products can quickly cover the product surface and prevent odor molecules from evaporating into the air, thereby reducing odor. However, odor molecules still exist in the product. During product storage or when reheated, odor molecules will re-evaporate. (5) Using fragrance-type deodorizers: Adding various fragrances to products allows the fragrance to evaporate quickly and mask the odor. However, while the fragrance masks the odor, the odor molecules still exist. When the fragrance evaporates, the product becomes even smellier and more unpleasant. None of the above measures can fundamentally solve the odor problem of products. Reactive deodorizers, on the other hand, have excellent heat resistance and will not fail or decompose due to high temperatures. They can effectively remove odors and ensure that the treated material has no residual odor. They are suitable for a variety of polymer materials and have received widespread attention. However, current reactive deodorizers can damage the mechanical properties of polymer materials to some extent, and their deodorizing effect is limited, targeting only a single type of odor molecule. Summary of the Invention

[0004] In view of this, the purpose of this invention is to provide a reactive deodorizing agent matrix, its preparation method, and its application. The reactive deodorizing agent matrix provided by this invention can effectively remove multiple odor molecules simultaneously, such as benzene, aldehydes, ketones, and toxic small molecules such as ammonia, hydrogen sulfide, and sulfur dioxide. It has broad applicability, good deodorizing effect, does not damage the mechanical properties of polymer materials, and can also improve the aging resistance of polymer materials.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] This invention provides a reactive deodorizing agent matrix, comprising the following raw materials by mass percentage: 37-65% organic wax, 12-20% emulsifier, 1-5% butene copolymer, 1-3% antioxidant, 1-5% oxidant, and 20-30% zinc-containing compound.

[0007] Preferably, the zinc-containing compound includes zinc-containing organic compounds and / or zinc-containing inorganic compounds.

[0008] Preferably, the oxidant includes inorganic oxidants and / or organic oxidants.

[0009] Preferably, the inorganic oxidant includes at least one of hydrogen peroxide, potassium permanganate, and potassium hypochlorite;

[0010] The organic oxidizing agent includes organic peroxide oxidizing agents and / or acrylate compounds.

[0011] Preferably, the emulsifier comprises fatty alcohol polyoxyethylene ether or a derivative thereof;

[0012] The butene copolymer includes polybutene and / or polyisobutylene;

[0013] The organic wax includes at least one of paraffin wax, polyethylene wax, and microcrystalline wax;

[0014] The antioxidant includes at least one of antioxidant BHT, antioxidant 264, antioxidant 2246, antioxidant CPL, and antioxidant 1010.

[0015] This invention also provides a method for preparing the reactive deodorizing agent matrix described in the above technical solution, comprising the following steps:

[0016] Organic wax, emulsifier, butene copolymer, antioxidant and zinc-containing compound are mixed and heated until all materials melt to obtain a liquid mixture;

[0017] The liquid mixture is cooled and then mixed with an oxidant to obtain the reactive deodorizing agent matrix.

[0018] The present invention also provides a reactive deodorizer, comprising an inorganic filler and an active ingredient; the mass ratio of the inorganic filler to the active ingredient is 2:8 to 5:5; the active ingredient is the reactive deodorizer matrix described in any of the above technical solutions.

[0019] Preferably, it further includes a polymer carrier; the mass ratio of the polymer carrier to the effective component is 2:8 to 3.5:6.5.

[0020] The present invention also provides the application of the reactive deodorizer described in the above technical solution in eliminating odors.

[0021] The present invention also provides a deodorization method for polymer materials, wherein the reactive deodorizing agent described in the above technical solution is used as a filler for the polymer material; the mass of the reactive deodorizing agent matrix or the reactive deodorizing agent accounts for 0.5 to 1.5% of the total mass of the polymer material.

[0022] This invention provides a reactive deodorizing agent matrix, comprising, by mass percentage, the following raw materials: 37-65% organic wax, 12-20% emulsifier, 1-5% butene copolymer, 1-3% antioxidant, 1-5% oxidant, and 20-30% zinc-containing compound. In this invention, the zinc-containing compound generates zinc ion free radicals under the action of the oxidant. These zinc ion free radicals then react with the oxidant to form a multifunctional chelate. This chelate contains various functional groups, such as hydroxyl, amino, thiol, and carbonyl groups, which can effectively undergo addition, carbonylation, esterification, condensation, and reduction reactions with odor molecules such as benzene, aldehydes, ketones, ammonia, hydrogen sulfide, and sulfur dioxide, forming strong ionic bonds to rapidly and permanently remove odor molecules. The melted organic wax acts as a solvent, dissolving non-polar odor molecules in polymer materials. The emulsifier is used... The deodorizing agent disperses polar odor molecules in polymer materials, allowing non-polar and polar odor molecules to react better with zinc ion chelates. The antioxidant stabilizes the chemical bonds between the zinc ion chelates and odor molecules, generating higher-energy ionic bonds that are less prone to breakage, preventing odor molecules from precipitating due to bond breakage and maintaining long-term stability of the deodorizing effect. Simultaneously, the addition of butene copolymers helps the deodorizer dissolve easily in polymer materials, improving its compatibility and enabling timely reaction of odor molecules within the polymer materials, achieving the desired deodorizing effect.

[0023] Using the reactive deodorizing agent matrix obtained in this invention as a filler in the preparation process of polymer materials can effectively, quickly, and permanently remove odor molecules from the polymer materials. Odor molecules exist in a free state in polymer materials, which can damage the materials and reduce their aging resistance. By using the reactive deodorizing agent matrix to reduce small molecules (odor molecules) in polymer materials and decrease the presence of free substances, the aging resistance of the polymer materials is improved. Compared with polymer materials without the reactive deodorizing agent matrix, the aging resistance is improved by nearly 30%.

[0024] The reactive deodorizing agent matrix obtained by this invention can be further processed to obtain powder or granule formulations, which can be used in various deodorizing environments. It is convenient to apply, has a significant deodorizing effect, does not produce dust, and is easy to clean. Detailed Implementation

[0025] This invention provides a reactive deodorizing agent matrix, comprising the following raw materials by mass percentage: 37-65% organic wax, 12-20% emulsifier, 1-5% butene copolymer, 1-3% antioxidant, 1-5% oxidant, and 20-30% zinc-containing compound.

[0026] In this invention, unless otherwise specified, all raw materials and equipment used are commercially available products well known in the art.

[0027] The reactive deodorizing agent matrix provided by this invention comprises 20-30% zinc-containing compounds by mass percentage. In specific embodiments, the zinc-containing compounds can be 20%, 22%, 22.6%, 23%, 23.5%, 24%, 25%, 25.5%, 26%, 26.5%, 27%, 27.3%, 27.7%, 28%, 28.5%, 29%, or 30%. In this invention, the zinc-containing compounds preferably include zinc-containing organic compounds and / or zinc-containing inorganic compounds. The zinc-containing inorganic compounds preferably include at least one of zinc oxide, zinc sulfate, and zinc carbonate. The zinc-containing organic compounds preferably include at least one of zinc stearate, zinc acrylate, zinc methacrylate, and zinc ricinoleate. The zinc-containing compounds provide zinc ions as chelate centers, forming zinc ion chelates, i.e., multifunctional substances centered on zinc ions. Zinc ion chelates undergo irreversible chemical reactions with odor molecules, including chemical bonding and quasi-chelation, to quickly and permanently remove odor molecules.

[0028] The reactive deodorizing agent matrix provided by the present invention comprises 1-5% oxidant by mass percentage. In specific embodiments, the oxidant may be 1%, 1.2%, 1.5%, 1.8%, 2%, 2.5%, 2.8%, 3%, 3.4%, 3.7%, 4%, 4.5%, or 5%. In this invention, the oxidant preferably includes inorganic oxidants and / or organic oxidants. The inorganic oxidant preferably includes at least one of hydrogen peroxide, potassium permanganate, and potassium hypochlorite. In a specific embodiment of this invention, if hydrogen peroxide is used as the oxidant, an aqueous solution of hydrogen peroxide is preferred, and the mass concentration of the hydrogen peroxide is preferably 3-7.5%. The organic oxidant preferably includes organic peroxide oxidants and / or acrylate compounds. The organic peroxide oxidants include benzoyl peroxide, bis(2,4-dichlorobenzoyl peroxide), bis(2,4-dichlorobenzoyl peroxide), di-tert-butyl peroxide, 2,5-dimethyl-2,5-bis(tert-butylperoxy)hexane, 2,5-dimethyl-2,5-tert-butylperoxy-3-hexyne, dicumyl peroxide, 1,4-di-tert-butylperoxyisopropylbenzene, cumyl hydroperoxide, etc. Butyl peroxyisopropyl carbonate, 1,1-bis(tert-butylperoxy)cyclohexane, 1,1-di-tert-butylperoxy-3,3,5-trimethylcyclohexane, tert-butyl perbenzoate, tert-butyl isopropyl phenyl peroxide, 2,4-di-tert-butyl peroxyisopropylbenzene, ethyl 3,3-bis(tert-butylperoxy)butyrate, n-butyl 4,4-bis(tert-butylperoxy)valerate, hexamethylene-N,N'-bis(tert-butylperoxy) The acrylate compound is selected from at least one of the following: carbonate, 2,2-bis(tert-butylperoxide)butane, 2,5-dimethyl-2,5-bis(benzoic acid peroxide)hexane, 2,2-bis(4,4-di-tert-butylperoxycyclohexyl)propane, and 1,3-bis(2-tert-butylperoxyisopropyl)benzene; the acrylate compound preferably includes butanediol (2-methacrylate) ester and / or trimethylolpropane tris(2-methacrylate) ester. The oxidant is used to oxidize the zinc-containing compound to form a zinc ion chelate; when the oxidant is hydrogen peroxide, the zinc-containing compound is preferably a zinc-containing organic compound. Hydrogen peroxide reacts with the zinc-containing organic compound, first generating a free radical, which is then converted into a multifunctional chelate centered on zinc ions; when the oxidant is potassium permanganate or potassium hypochlorite, there are no special requirements for the zinc-containing compound; when the oxidant is an organic oxidant, there are no special requirements for the zinc-containing compound.

[0029] The reactive deodorizing agent matrix provided by this invention comprises 37-65% organic wax by weight percentage. In specific embodiments, the organic wax can be 37%, 40%, 42%, 45%, 47%, 50%, 52%, 55%, 58%, 60%, or 65%. In this invention, the organic wax preferably includes at least one of paraffin wax, polyethylene wax, and microcrystalline wax. The prepared reactive deodorizing agent matrix is ​​added as a filler to a polymer material. Under high temperature, the organic wax and emulsifier melt into a liquid, which acts as a solvent to disperse low-molecular-weight free substances in the polymer material, so that polar and non-polar odor molecules can better react with zinc ion chelates.

[0030] The reactive deodorizing agent matrix provided by this invention comprises 12-20% emulsifier by mass percentage. In specific embodiments, the emulsifier can be 12%, 14%, 12%, 15%, 18%, or 20%. In this invention, the emulsifier preferably comprises fatty alcohol polyoxyethylene ether or its derivatives, wherein the fatty alcohol polyoxyethylene ether derivative preferably comprises 206 emulsifier (Shanghai Greening Chemical Technology Co., Ltd.). The prepared reactive deodorizing agent matrix is ​​added as a filler to a polymer material. The emulsifier is used to disperse polar substances in the polymer material so that the polar odor molecules react better with the zinc ion chelate.

[0031] The reactive deodorizing agent matrix provided by this invention comprises 1-5% butene copolymer by mass percentage. In specific embodiments, the butene copolymer can be 1%, 1.2%, 1.5%, 1.8%, 2%, 2.5%, 2.8%, 3%, 3.4%, 3.7%, 4%, 4.5%, or 5%. In this invention, the butene copolymer preferably comprises polybutene and / or polyisobutylene. The butene copolymer can dissolve zinc-containing chelates, allowing the zinc-containing chelates to be uniformly dispersed in the polymer material. Simultaneously, the butene copolymer helps the deodorizing agent dissolve in the polymer material and improves its compatibility with the polymer material.

[0032] The reactive deodorizing agent matrix provided by this invention comprises 1-3% antioxidant by mass percentage. In specific embodiments, the antioxidant can be 1%, 1.2%, 1.5%, 1.8%, 2%, 2.3%, 2.6%, 2.8%, or 3%. In this invention, the antioxidant preferably includes at least one of antioxidants BHT, 264, 2246, CPL, and 1010. The obtained reactive deodorizing agent matrix is ​​added as a filler to polymer materials. When zinc ion chelates react with odor molecules, the antioxidant can stabilize the chemical bonds between the zinc ion chelates and odor molecules, preventing the re-decomposition of odor molecules and maintaining long-term stability of the deodorizing effect.

[0033] This invention provides a reactive deodorizer matrix that utilizes an oxidant to allow a zinc-containing compound to react with wax, emulsifier, butene copolymer, and antioxidant under specific conditions, forming a chelate centered on zinc ions. This chelate contains various functional groups, such as hydroxyl, amino, thiol, and carbonyl groups, which can interact with odor molecules to form chemical bonds. Under quasi-chelation, an irreversible chemical reaction occurs, rapidly and permanently removing odor molecules. The melted organic wax acts as a solvent to disperse non-polar substances in the polymer material, while the emulsifier disperses polar substances, allowing both non-polar and polar odor molecules to react better with the zinc ion chelate. The antioxidant stabilizes the chemical bonds between the zinc ion chelate and odor molecules, maintaining long-term stability of the deodorizing effect.

[0034] This invention also provides a method for preparing the reactive deodorizing agent matrix described in the above technical solution, comprising the following steps:

[0035] Organic wax, emulsifier, butene copolymer, antioxidant and zinc-containing compound are mixed and heated until all materials melt to obtain a liquid mixture;

[0036] The liquid mixture is cooled and then mixed with an oxidant to obtain the reactive deodorizing agent matrix.

[0037] The present invention does not have any special requirements for the mixing method; commonly used techniques in the field, such as stirring and oscillation, can be used.

[0038] In this invention, the heating temperature is preferably 120–160°C. In specific embodiments, the heating temperature can be 120°C, 125°C, 130°C, 135°C, 140°C, 145°C, 150°C, 155°C, or 160°C. The heating and mixing process is a physical mixing process. If the temperature is too low, the melting rate is too slow, the efficiency is too low, and substances with high melting points cannot melt. If the temperature is too high, it will cause the raw materials to oxidize, age, and become ineffective.

[0039] In this invention, the preferred step of mixing the liquid mixture and the oxidant is to lower the temperature of the liquid mixture to 75-85°C before mixing it with the oxidant.

[0040] In this invention, the temperature after cooling is preferably 75-85°C. In specific embodiments, the temperature after cooling can be 75°C, 80°C, or 85°C. If the temperature is too high, the oxidant will react violently prematurely, making production unsafe; if the temperature is too low, the liquid mixture will cool into a solid, failing to mix evenly, resulting in a significant reduction in the product's effectiveness.

[0041] In this invention, organic wax, emulsifier, butene copolymer, antioxidant and zinc-containing compound are mixed to ensure uniform mixing. Then an oxidant is added, and under the action of the oxidant, zinc ions form a stable zinc ion chelate with the organic ligand.

[0042] The present invention also provides a reactive deodorizer, comprising an inorganic filler and an active ingredient; the mass ratio of the inorganic filler to the active ingredient is 2-5:5-8; the active ingredient is the matrix of the above-mentioned reactive deodorizer.

[0043] In this invention, the preferred mass ratio of the inorganic filler to the effective component is 2:8 to 5:5. In specific embodiments, the mass ratio of the inorganic filler to the effective component can be 5:5, 4.5:5.5, 4:6, 3.5:6.5, 3:7, 2.5:7.5 or 2:8.

[0044] In this invention, the inorganic filler preferably includes at least one selected from silica, calcium carbonate, porous silicate, clay, kaolin, and talc. The inorganic filler primarily functions as a carrier, facilitating the conversion of molten material into powder for easier customer use.

[0045] In this invention, when the reactive deodorizer is composed of inorganic fillers and active ingredients, the reactive deodorizer is preferably in powder form; the preparation method of the reactive deodorizer preferably includes: mixing inorganic fillers and active ingredients to obtain a powder reactive deodorizer.

[0046] The present invention does not have any special requirements for the mixing method; any technical means known in the art can be used.

[0047] In this invention, the reactive deodorizer preferably further includes a polymer carrier. The polymer preferably includes any one of rubber, plastic, or thermoplastic elastomer. The polymer is mainly produced as masterbatch granules to reduce dust generation during customer use.

[0048] In this invention, the mass ratio of the polymer carrier to the effective component is preferably 2:8 to 3.5:6.5. In specific embodiments, the mass ratio of the polymer carrier to the effective component can be 2:8, 2.5:7.5, 3:7, or 3.5:6.5.

[0049] In this invention, when the reactive deodorizer further includes a polymer carrier, the reactive deodorizer is preferably a granular formulation; the preparation method of the reactive deodorizer preferably includes: mixing inorganic fillers and active ingredients to obtain powder, then mixing the powder with a polymer carrier and granulating it to obtain a granular reactive deodorizer.

[0050] In this invention, powder or granule formulations are preferably used as fillers and added during the initial mixing of polymeric raw materials. The purpose of using powder or granule formulations is primarily to facilitate weighing for customers and to reduce dust generation during use.

[0051] The present invention also provides the application of the reactive deodorizing agent matrix prepared by the preparation method described above in the elimination of odors.

[0052] This invention also provides a deodorizing method for polymer materials, using the reactive deodorizing agent matrix described in the above technical solution as a filler for the polymer material; the reactive deodorizing agent accounts for 0.5% to 1.5% of the total mass of the polymer material. The deodorizing agent matrix obtained by this invention is applicable to any polymer material.

[0053] In this invention, the polymer material preferably includes at least one of ethylene propylene rubber, styrene-butadiene rubber, ABS resin, asphalt, natural rubber, polyethylene, and polypropylene.

[0054] In this invention, the reactive deodorizing agent preferably accounts for 0.5% to 1.5% of the total polymer material. In specific embodiments, the reactive deodorizing agent can account for 0.5%, 0.8%, 1%, 1.2%, or 1.5% of the total polymer material. The reactive deodorizing agent matrix obtained by this invention is added as a filler to the polymer material preparation process. During the molding and processing of the polymer material, small odor molecules in the liquid polymer material dissolve in the organic wax and emulsifier, and chemically bond with the zinc ion chelating agent, thereby rapidly and permanently removing odor molecules.

[0055] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments. The described embodiments are only some embodiments of the present invention, and not all embodiments. Any modifications, equivalent substitutions, improvements, etc., made to the embodiments of the present invention based on the technical essence and general principles of the present invention without creative effort should be within the protection scope of the present invention.

[0056] Example 1

[0057] By mass percentage, 44.6% microcrystalline wax, 17.9% paraffin emulsifier (206 paraffin emulsifier from Shanghai Gerunning Chemical Technology Co., Ltd.), 1.8% antioxidant CPL, 27.7% zinc acrylate, and 4.5% polyisobutylene (PB1300 from Daelim, Korea) were mixed in a 150°C heating and stirring apparatus until all materials were completely melted, resulting in a liquid mixture. The liquid mixture was then cooled to 80°C, and 3.5% bis(tert-butylperoxyisopropyl)benzene (BIPB) was added and mixed thoroughly to obtain the reactive deodorizing agent matrix.

[0058] Mix 60% reactive deodorizing agent matrix and 40% silica by mass percentage, stir at 50℃ and 35rpm for 15 minutes, cool to room temperature, and prepare powder.

[0059] When the prepared reactive deodorizing agent matrix is ​​used for asphalt deodorization, the asphalt is pulverized before asphalt modification treatment. At room temperature, the modifier and deodorizing agent at 1.5% of the total mass of the modified asphalt are mixed. The mixture is then heated to the modification temperature, discharged, and the modified asphalt is obtained. The modified asphalt is kept at 185℃ for 5 hours, and no odor appears.

[0060] Example 2

[0061] By weight percentage, 44.6% paraffin wax, 17.9% paraffin emulsifier, 1.8% antioxidant CPL, 27.7% zinc methacrylate, and 4.5% polyisobutylene were mixed in a 125°C heating and stirring apparatus until all materials were completely melted, resulting in a liquid mixture. The liquid mixture was cooled to 80°C, and 3.5% hydrogen peroxide (3.5 wt%) was added and mixed thoroughly to obtain the reactive deodorizing agent matrix.

[0062] Mix 60% reactive deodorizing agent matrix and 40% silica by mass percentage, stir at 50℃ and 35rpm for 15 minutes, cool to room temperature, and prepare powder.

[0063] Example 3

[0064] By weight percentage, 44.6% microcrystalline wax, 17.9% paraffin emulsifier, 1.8% antioxidant BHT, 27.7% zinc acrylate, and 4.5% polyisobutylene were mixed in a 125°C heating and stirring apparatus until all materials were completely melted, resulting in a liquid mixture. The liquid mixture was then cooled to 80°C, and 2.0% BIPB and 1.5% hydrogen peroxide were added and mixed thoroughly to obtain the reactive deodorizing agent matrix.

[0065] Mix 60% reactive deodorizing agent matrix and 40% silica by mass percentage, stir at 50℃ and 35rpm for 15 minutes, cool to room temperature, and prepare powder.

[0066] Example 4

[0067] By weight percentage, 44.6% microcrystalline wax, 17.9% paraffin emulsifier, 1.8% antioxidant BHT, 27.7% zinc acrylate, and 4.5% polyisobutylene were mixed in a 125°C heating and stirring apparatus until all materials were completely melted, resulting in a liquid mixture. The liquid mixture was then cooled to 80°C, and 2.0% BIPB and 1.5% potassium permanganate were added and mixed thoroughly to obtain the reactive deodorizing agent matrix.

[0068] Mix 60% reactive deodorizing agent matrix, 10% silica and 30% porous silicate (A4 model from Yingkou Zhongbao Molecular Sieve Co., Ltd.) by mass percentage, stir at 50℃ rpm for 15 minutes, cool to room temperature, and prepare powder.

[0069] Example 5

[0070] By weight percentage, 44.6% microcrystalline wax, 17.9% paraffin emulsifier, 1.8% antioxidant CPL, 27.7% zinc ricinoleate, and 4.5% polyisobutylene were mixed in a 125°C heating and stirring apparatus until all materials were completely melted, resulting in a liquid mixture. The liquid mixture was then cooled to 80°C, and 3.5% BIPB was added and mixed thoroughly to obtain the reactive deodorizing agent matrix.

[0071] Mix 60% of the reactive deodorizing agent matrix and 40% of fumed silica by weight percentage, stir at 50°C and 35 rpm for 15 minutes, and cool to room temperature to prepare a powder. Then, mix 70% of the powder and 30% of EPDM rubber by weight percentage in a mixer until homogeneous, and extrude and granulate to obtain a granular formulation.

[0072] Example 6

[0073] By weight percentage, 44.6% microcrystalline wax, 17.9% paraffin emulsifier, 1.8% antioxidant BHT, 27.7% zinc acrylate, and 4.5% polyisobutylene were mixed in a 125°C heating and stirring apparatus until all materials were completely melted, resulting in a liquid mixture. The liquid mixture was then cooled to 80°C, and 2.0% BIPB and 1.5% potassium permanganate were added and mixed thoroughly to obtain the reactive deodorizing agent matrix.

[0074] By weight percentage, 60% of the reactive deodorizing agent matrix, 10% of fumed silica, and 30% of porous silicate are mixed and stirred at 50°C and 35 rpm for 15 minutes. After cooling to room temperature, a powder is prepared. Then, by weight percentage, 70% of the powder and 30% of styrene-butadiene rubber are mixed evenly in a mixer, extruded, and granulated to obtain a granular formulation.

[0075] Comparative Example 1 (without polyisobutylene)

[0076] By weight percentage, 46.8% microcrystalline wax, 18.8% paraffin emulsifier, 1.9% antioxidant BHT, and 29.0% zinc acrylate were mixed in a 125°C heating and stirring apparatus until all materials were completely melted, resulting in a liquid mixture. The liquid mixture was then cooled to 80°C, and 2.0% BIPB and 1.5% potassium permanganate were added and mixed thoroughly to obtain the reactive deodorizing agent matrix.

[0077] The obtained reactive deodorizing agent matrix had no effect whatsoever when used for asphalt deodorization. The asphalt deodorization process was the same as in Example 1.

[0078] Comparative Example 2 (without antioxidants)

[0079] By mass percentage, 44.6% microcrystalline wax, 19.7% paraffin emulsifier, 27.7% zinc acrylate, and 4.5% polyisobutylene were mixed in a 125°C heating and stirring apparatus until all materials were completely melted, resulting in a liquid mixture. The liquid mixture was then cooled to 80°C, and 2.0% BIPB and 1.5% potassium permanganate were added and mixed thoroughly to obtain the reactive deodorizing agent matrix.

[0080] When the obtained reactive deodorizing agent matrix was used for asphalt deodorization, no odor appeared within 1 to 2 hours at room temperature, but the odor reappeared after 3 hours.

[0081] The organic polymer deodorizing agent matrix prepared in Examples 1-6 was used as a filler in the polymer material. It was mixed uniformly with the raw material polypropylene and the modifier maleic anhydride, granulated, and injection molded to obtain a plastic product for later use. The amount of deodorizing agent matrix added was 1% of the total mass of the raw materials in the polymer material. A bag method was used, with the following analytical conditions: 100g of the plastic product was crushed into fine particles (2-3mm in diameter) and placed in a 10L sample bag. 5L of nitrogen gas was introduced, and the sample bag was heated to 60℃. The detection time was 2 hours (s), 1L was collected, and the collection rate was 102mL / min. Analysis was performed using TDS-GC-MS according to the EU environmental standard SHAEC23003151608, meeting REACH regulations. The results are shown in Table 1. (Comparison with existing plastic deodorizing agents, specifically the JH-200A plastic deodorizing agent from Ningbo Jiahe New Material Technology Co., Ltd., an adsorbent deodorizing agent, was made.)

[0082] Table 1. Release of volatile and total volatile substances

[0083]

[0084] As shown in Table 1, the organic polymer deodorizing agent matrix prepared in Examples 1-6 of this invention has a good removal effect on small molecule benzenes, alkenes, and alkanes, which are total volatile organic compounds (TVOCs), reducing the release of TVOCs. Existing adsorption-type deodorizing agents reduce odor at room temperature, but heating tests reveal no effect on TVOC content. In contrast, this invention adds the deodorizing agent during the polymer molding process, resulting in a polymer material whose odor is reduced or eliminated during high-temperature production, making it a truly environmentally friendly solution.

[0085] The organic polymer deodorizing agents prepared in Examples 1-6 were used as fillers in polymer materials, mixed uniformly with the raw materials used to prepare the polymer materials, granulated, and injection molded to obtain plastic products for later use. The amount of the deodorizing agent matrix added was 1% of the total mass of the raw materials in the polymer materials. A bag method was used, with the following analytical conditions: 100g of sample was placed in a 10L sample bag, 5L of nitrogen gas was introduced, the sample bag was heated to 60℃, the detection time was 2hr(s), 1L was collected, and the collection rate was 501mL / min. Analysis was performed using HPLC-DAD according to the EU environmental standard SHAEC23003151607, and the results were in compliance with the RoHS directive. The results are shown in Table 2.

[0086] Table 2 Release of Aldehydes and Ketones

[0087]

[0088] As can be seen from the test data in Table 2, the organic polymer deodorizing agent matrix prepared in Examples 1 to 6 of this invention also has a good removal effect on small molecule aldehydes and ketones.

[0089] The organic polymer deodorizer prepared by this invention, when added to the polymer material as a filler, has no effect on the mechanical properties of the final polymer material, ensuring that the mechanical properties of the polymer material remain consistent before and after the addition of the organic polymer deodorizer.

[0090] Application Example 1

[0091] The organic polymer deodorizing agent precursor prepared in Example 1 was used in tire rubber. The tire rubber composition was as follows: 60 parts natural rubber, 20 parts styrene-butadiene rubber, 20 parts cis-butadiene rubber, 50 parts carbon black, 20 parts aromatic oil, 20 parts calcium carbonate, 5 parts zinc oxide, 2 parts stearic acid, 3 parts antioxidant (2 parts antioxidant 4010NA, 1 part antioxidant RD), 2.8 parts accelerator (0.15 parts accelerator TMTD, 1.8 parts accelerator CBS, 0.85 parts accelerator DM), and 2.5 parts sulfur. Of these, 3 parts of the organic polymer deodorizing agent precursor were added together with zinc oxide, etc. Application tests were conducted at Chongqing Jiulong Rubber Factory at 70℃ for 72 hours. The test results showed that the aging coefficient of the tire rubber increased from 0.72 to 0.96, an increase of 33%.

[0092] Application Example 2

[0093] The organic polymer deodorizing agent precursor prepared in Example 1 was used in automotive sealing strips. The automotive sealing strips consisted of: 100 parts EPDM, 60 parts paraffin oil, 65 parts carbon black, 25 parts calcium carbonate, 5 parts zinc oxide, 1.5 parts stearic acid, 2 parts antioxidant RD, 3.2 parts accelerator (EM55 comprehensive accelerator from Kawaguchi Chemical Industry Co., Ltd., Japan), and 1.5 parts sulfur. Of these, 3 parts were the organic polymer deodorizing agent precursor, added together with zinc oxide, etc. Odor removal tests were conducted at Zhejiang Xingyu Automotive Parts Co., Ltd., with odor levels divided into 6 grades: Grade 1: No odor detected; Grade 2: Odor detected but no interfering factors; Grade 3: Odor clearly detected but no interfering factors; Grade 4: Interfering factors present; Grade 5: Severely interfering factors present; Grade 6: Unbearable. The odor level requirement for the solid sealing strip was ≤3.0. Test results show that after applying the organic polymer deodorizing agent matrix prepared in this invention, the odor level of the car sealing strip was reduced from level 4 to level 3, and it passed the test on the first try (their original odor level was level 4, and now they bake the products to remove the odor before shipping).

[0094] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A reactive deodorizing agent matrix, characterized in that, By mass percentage, it includes the following raw materials: 37-65% organic wax, 12-20% emulsifier, 1-5% polybutene and / or polyisobutylene, 1-3% antioxidant, 1-5% oxidant, and 20-30% zinc-containing compound.

2. The reactive deodorizing agent matrix according to claim 1, characterized in that, The zinc-containing compounds include zinc-containing organic compounds and / or zinc-containing inorganic compounds.

3. The reactive deodorizing agent matrix according to claim 1, characterized in that, The oxidizing agent includes inorganic oxidizing agents and / or organic oxidizing agents.

4. The reactive deodorizing agent matrix according to claim 3, characterized in that, The inorganic oxidant includes at least one of hydrogen peroxide, potassium permanganate, and potassium hypochlorite; The organic oxidant is an organic peroxide oxidant.

5. The reactive deodorizing agent matrix according to claim 1, characterized in that, The emulsifier includes fatty alcohol polyoxyethylene ether or its derivatives; The organic wax includes at least one of paraffin wax, polyethylene wax, and microcrystalline wax; The antioxidant includes at least one of antioxidant BHT, antioxidant 264, antioxidant 2246, antioxidant CPL, and antioxidant 1010.

6. The method for preparing the reactive deodorizing agent matrix according to any one of claims 1 to 5, characterized in that, Includes the following steps: Organic wax, emulsifier, butene copolymer, antioxidant and zinc-containing compound are mixed and heated until all materials melt to obtain a liquid mixture; The liquid mixture is cooled and then mixed with an oxidant to obtain the reactive deodorizing agent matrix.

7. A reactive deodorizing agent, characterized in that, It includes inorganic fillers and active ingredients; the mass ratio of the inorganic fillers to the active ingredients is 2:8 to 5:5; the active ingredients are the reactive deodorizing agent matrix as described in any one of claims 1 to 5.

8. The reactive deodorizer according to claim 7, characterized in that, It also includes a polymer carrier; the mass ratio of the polymer carrier to the active ingredient is 2:8~3.5:6.

5.

9. The application of the reactive deodorizing agent matrix according to any one of claims 1 to 5 or the reactive deodorizing agent according to any one of claims 7 to 8 in eliminating odors.

10. A method for deodorizing polymer materials, characterized in that, The reactive deodorizing agent matrix according to any one of claims 1 to 5 or the reactive deodorizing agent according to any one of claims 7 to 8 is used as a filler for the polymer material; the mass of the reactive deodorizing agent matrix or the reactive deodorizing agent accounts for 0.5 to 1.5% of the total mass of the polymer material.

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