Reactive deodorant matrix as well as preparation method and application thereof

Abstract

The invention provides a reactive deodorant matrix as well as a preparation method and application thereof, and particularly relates to the technical field of deodorants. The reactive deodorant matrix provided by the invention comprises the following raw materials in percentage by mass: 37-65% of organic wax, 12-20% of an emulsifier, 1-5% of a butylene copolymer, 1-3% of an anti-aging agent, 1-5% of an oxidant and 20-30% of a zinc-containing compound. The oxidizing agent is utilized to promote the zinc-containing compound, the wax, the emulsifier, the butylene copolymer and the anti-aging agent to form a chelate with zinc ions as the center under specific conditions, the chelate contains multiple functional groups, can interact with odor molecules to form chemical bonds, and generates irreversible chemical reaction under the quasi-chelation effect, so that the odor can be removed, and the odor can be removed. Odor molecules can be quickly and permanently removed; and the anti-aging agent can stabilize chemical bonds between zinc ion chelates and odor molecules, so that the long-term stability of the chemical bonds is improved, and the long-term stability of the odor removal effect is kept.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of deodorants, and particularly relates to a reactive deodorant precursor, a preparation method and application thereof. BACKGROUND

[0002] High polymer materials (rubber, plastic, thermoplastic elastomer, asphalt, etc.) are widely used due to their excellent performance and low price. However, during the synthesis of the base material, there are inevitably some organic low molecular substances that are not completely reacted, organic substances with low polymerization degree, and residual organic solvent materials. These organic substances will release harmful volatile organic compounds (VOC) during the further high-temperature processing or storage of the high polymer material, pollute the air, and harm people's health.

[0003] The existing solutions include: (1) long-time storage, which takes a long time and the volatile substances will also enter the air, causing pollution; (2) baking and / or boiling treatment, which is the main deodorizing method at present, and this method increases the process cost, causes the product to age and reduces the performance, and it is only a way to transfer pollution, and the volatile substances will still enter the air, causing pollution; (3) using adsorption-type deodorants to reduce the volatilization of odor molecules and reduce odor, such as zeolite, pumice, etc., but after using the adsorption-type deodorant, the odor molecules will volatilize from the adsorption-type deodorant during storage or reheating, which is a way to treat the symptoms but not the root cause, and the adsorption-type deodorant is not combined with the high polymer material and is free in the entire material, relying on its loose pores to adsorb odor molecules to reduce odor, which is equivalent to an impurity in the entire material, reducing the performance of the high polymer material product; (4) using a masking agent, adding a masking agent to the product can quickly cover the product surface to block the volatilization of odor molecules into the air, thereby reducing odor, but the odor molecules still exist in the product, and the odor molecules will volatilize again during storage or reheating of the product; (5) using a fragrance-type deodorant, adding various fragrances to the product, and the fragrance volatilizes quickly to cover the odor. However, the odor is covered by the fragrance, and the odor molecules still exist, and the product becomes more smelly and more difficult to smell after the fragrance volatilizes. The foregoing measures cannot fundamentally solve the odor of the product, and the reactive deodorant has excellent heat resistance and will not be ineffective or decomposed due to high temperature, can effectively remove odor, and ensure that the treated material has no residual odor, and is suitable for a variety of high polymer materials and is widely concerned. However, the current reactive deodorant will damage the mechanical properties of the high polymer material to some extent, and the deodorizing effect is limited, and the targeted odor molecules are relatively single. SUMMARY

[0004] In view of the above, the present application aims to provide a reactive odor-removing agent precursor, a preparation method and application thereof.

[0005] To solve the above technical problems, the present application provides the following technical solutions.

[0006] The present application provides a reactive odor-removing agent precursor, which comprises the following raw materials in percentage by mass: organic wax 37-65%, emulsifier 12-20%, butene copolymer 1-5%, antioxidant 1-3%, oxidant 1-5%, and zinc-containing compound 20-30%.

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

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

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

[0010] The organic oxidant comprises organic peroxide oxidant and / or acrylate compound.

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

[0012] The butene copolymer comprises polybutene and / or polyisobutylene.

[0013] The organic wax comprises at least one of paraffin wax, polyethylene wax and microcrystalline wax.

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

[0015] The present application also provides a preparation method of the reactive odor-removing agent precursor.

[0016] The organic wax, emulsifier, butene copolymer, antioxidant and zinc-containing compound are mixed and heated to melt each material to obtain a liquid mixture.

[0017] The liquid mixture is mixed with the oxidant after cooling to obtain the reactive odor-removing agent precursor.

[0018] The application further provides a reactive deodorant, which comprises an inorganic filler and an effective component; the mass ratio of the inorganic filler and the effective component is 2:8-5:5; the effective component is the reactive deodorant matrix in any of the above technical solutions.

[0019] Preferably, a high polymer carrier is further included; the mass ratio of the high polymer carrier and the effective component is 2:8-3.5:6.5.

[0020] The application further provides the application of the reactive deodorant in the above technical solutions in eliminating odor.

[0021] The application further provides a method for deodorizing a high polymer material, wherein the reactive deodorant in the above technical solutions is used as a filler of the high polymer material; the mass of the reactive deodorant matrix or the reactive deodorant accounts for 0.5-1.5% of the total mass of the high polymer material.

[0022] The application provides a reactive deodorant matrix, which comprises the following raw materials in percentage of mass: 37-65% of organic wax, 12-20% of emulsifier, 1-5% of butene copolymer, 1-3% of antioxidant, 1-5% of oxidant and 20-30% of zinc-containing compound. In the application, the zinc-containing compound generates zinc ion radicals under the action of the oxidant, and the zinc ion radicals are converted into a multi-functional chelating substance with the oxidant. The chelating substance contains multiple functional groups, such as hydroxyl, amino, sulfydryl and carbonyl, which can effectively react with odor molecules, such as benzene, aldehyde, ketone, ammonia, hydrogen sulfide and sulfur dioxide, to form ionic bonds with strong bond energy, rapidly and permanently eliminating the odor molecules. The organic wax is used as a solvent after being melted, and can dissolve non-polar odor molecules in the high polymer material. The emulsifier is used for dispersing polar odor molecules in the high polymer material, so that the non-polar and polar odor molecules can better react with the zinc ion chelate. The antioxidant can stabilize the chemical bond between the zinc ion chelate and the odor molecules, and generate ionic bonds with higher bond energy, which are not easy to break, preventing the odor molecules from being precipitated due to the broken chemical bond and maintaining the long-term stability of the deodorizing effect. Meanwhile, the addition of the butene copolymer helps the deodorant to be easily dissolved in the high polymer material, improves the compatibility with the high polymer material, and further reacts the odor molecules in the high polymer material, achieving the ideal deodorizing effect.

[0023] The prepared reactive odor-removing agent precursor is added into the preparation process of the high polymer material as a filler, so that the odor molecules in the high polymer material can be effectively, quickly and permanently removed. The odor molecules exist in the high polymer material in a free state, which can destroy the high polymer material and reduce the aging resistance of the high polymer material. The reactive odor-removing agent precursor can reduce the small molecules (odor molecules) in the high polymer material and reduce the free-state substances, so that the aging resistance of the high polymer material is improved by nearly 30% compared with the high polymer material without the reactive odor-removing agent precursor.

[0024] The prepared reactive odor-removing agent precursor can be further processed to obtain a powder or granular preparation, which can be used in various odor-removing environments, is convenient to use, has obvious odor-removing effect and will not have dust flying. DETAILED DESCRIPTION

[0025] The present application provides a reactive odor-removing agent precursor, which comprises the following raw materials in percentage by mass: organic wax 37-65%, emulsifier 12-20%, butene copolymer 1-5%, anti-aging agent 1-3%, oxidizing agent 1-5% and zinc-containing compound 20-30%.

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

[0027] The reactive odor-removing agent precursor provided by the present application comprises a zinc-containing compound in percentage by mass 20-30%, and in specific embodiments, the zinc-containing compound 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 the present application, the zinc-containing compound preferably comprises a zinc-containing organic compound and / or a zinc-containing inorganic compound, the zinc-containing inorganic compound preferably comprises at least one of zinc oxide, zinc sulfate and zinc carbonate, and the zinc-containing organic compound preferably comprises at least one of zinc stearate, zinc acrylate, zinc methacrylate and zinc ricinoleate. The zinc-containing compound provides zinc ions as the chelate center to form zinc ion chelates, i.e. multifunctional substances with zinc ions as the center. The zinc ion chelates can have an irreversible chemical reaction of chemical bonding and quasi-chelation with odor molecules, so that the odor molecules can be quickly and permanently removed.

[0028] The reactive odor-removing agent precursor provided by the present application comprises 1-5% of oxidizing agent in terms of mass percentage, and in specific embodiments, the oxidizing agent 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 the present application, the oxidizing agent preferably comprises inorganic oxidizing agent and / or organic oxidizing agent, the inorganic oxidizing agent preferably comprises at least one of hydrogen peroxide, potassium permanganate and potassium hypochlorite, and in specific embodiments of the present application, if hydrogen peroxide is used as the oxidizing agent, preferably a hydrogen peroxide aqueous solution is used, and the mass concentration of the hydrogen peroxide is preferably 3-7.5%; the organic oxidizing agent preferably comprises organic peroxide oxidizing agent and / or acrylate compound, the organic peroxide oxidizing agent comprises at least one of benzoyl peroxide, di-p-chlorobenzoyl peroxide, bis(2,4-dichlorobenzoyl) peroxide, di-tert-butyl peroxide, 2,5-dimethyl-2,5-di(tert-butylperoxy) hexane, 2,5-dimethyl-2,5-tert-butylperoxy-3-hexyne, dicumyl peroxide, 1,4-bis-tert-butylperoxyisopropyl benzene, cumyl hydroperoxide, tert-butylperoxy isopropyl 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-butylperoxyisopropyl benzene, 3,3-bis(tert-butylperoxy)butyric acid ethyl ester, 4,4-bis(tert-butylperoxy)valeric acid n-butyl ester, hexamethylene-N,N'-bis(tert-butylperoxy carbonate), 2,2-bis(tert-butylperoxy)butane, 2,5-dimethyl-2,5-bis(peroxybenzoic acid)hexane, 2,2-bis(4,4-di-tert-butylperoxycyclohexyl)propane and 1,3-bis(2-tert-butylperoxyisopropyl) benzene; and the acrylate compound preferably comprises butanediol (2-methyl acrylate) and / or trimethylolpropane tri(2-methyl acrylate). The oxidizing agent is used to oxidize the zinc-containing compound to form a zinc ion chelate; when the oxidizing agent is hydrogen peroxide, the zinc-containing compound is preferably a zinc-containing organic compound, and the hydrogen peroxide reacts with the zinc-containing organic compound to first generate free radicals and then convert into a multifunctional zinc ion-centered chelate; when the oxidizing agent is potassium permanganate and potassium hypochlorite, no special requirements are imposed on the zinc-containing compound; and when the oxidizing agent is an organic oxidizing agent, no special requirements are imposed on the zinc-containing compound.

[0029] The reactive deodorant masterbatch provided by the present application includes 37-65% of organic wax in terms of mass percentage, and in specific embodiments, the organic wax can be 37%, 40%, 42%, 45%, 47%, 50%, 52%, 55%, 58%, 60% or 65%. In the present application, the organic wax preferably includes at least one of paraffin wax, polyethylene wax and microcrystalline wax. The prepared reactive deodorant masterbatch is added as a filler to the high polymer material, and at high temperature, the organic wax and the emulsifier melt into liquid as a solvent to disperse the low molecular free substances in the high polymer material, so that the polar and non-polar odor molecules better react with the zinc ion chelate.

[0030] The reactive deodorant masterbatch provided by the present application includes 12-20% of emulsifier in terms of mass percentage, and in specific embodiments, the emulsifier can be 12%, 14%, 12%, 15%, 18% or 20%. In the present application, the emulsifier preferably includes fatty alcohol polyoxyethylene ether or its derivative, wherein the fatty alcohol polyoxyethylene ether derivative preferably includes 206 emulsifier (Shanghai Grening Chemical Technology Co., Ltd.). The prepared reactive deodorant masterbatch is added as a filler to the high polymer material, and the emulsifier is used to disperse the polar substances in the high polymer material, so that the polar odor molecules better react with the zinc ion chelate.

[0031] The reactive deodorant masterbatch provided by the present application includes 1-5% of butene copolymer in terms of mass percentage, and 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 the present application, the butene copolymer preferably includes polybutene and / or polyisobutene. The butene copolymer can dissolve the zinc-containing chelate, so that the zinc-containing chelate can be uniformly dispersed in the high polymer material, and at the same time, the butene copolymer can help the deodorant to be dissolved in the high polymer material and improve the compatibility with the high polymer material.

[0032] The reactive deodorant masterbatch provided by the present application includes 1-3% of antioxidant in terms of mass percentage, and in specific embodiments, the antioxidant can be 1%, 1.2%, 1.5%, 1.8%, 2%, 2.3%, 2.6%, 2.8% or 3%. In the present application, the antioxidant preferably includes at least one of antioxidant BHT, antioxidant 264, antioxidant 2246, antioxidant CPL and antioxidant 1010. The prepared reactive deodorant masterbatch is added as a filler to the high polymer material, and when the zinc ion chelate and the odor molecules react, the antioxidant can stabilize the chemical bond between the zinc ion chelate and the odor molecules, so that the odor molecules are no longer re-decomposed, and the long-term stability of the deodorizing effect is maintained.

[0033] The application obtains a reactive odor-removing agent precursor by using an oxidant to make a zinc-containing compound form a chelate with wax, an emulsifier, a butene copolymer and an antioxidant under specific conditions, the chelate having multiple functional groups such as hydroxyl, amino, sulfydryl and carbonyl, which can interact with odor molecules to form chemical bonds and undergo irreversible chemical reactions under quasi-chelation to quickly and permanently remove odor molecules; the organic wax, after being melted, serves as a solvent to disperse non-polar substances in the high polymer material, the emulsifier is used to disperse polar substances in the high polymer material so that non-polar and polar odor molecules can better react with the zinc ion chelate, and the antioxidant can stabilize the chemical bonds between the zinc ion chelate and odor molecules to maintain long-term stability of the odor-removing effect.

[0034] The application further provides a preparation method of the reactive odor-removing agent precursor.

[0035] The organic wax, the emulsifier, the butene copolymer, the antioxidant and the zinc-containing compound are mixed and heated to melt the materials to obtain a liquid mixture.

[0036] The liquid mixture is mixed with an oxidant after being cooled to obtain the reactive odor-removing agent precursor.

[0037] The application does not have special requirements for the mixing method, and common technical means in the art can be used, such as stirring and oscillation.

[0038] In the application, the heating temperature is preferably 120-160°C, and 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 speed is too slow, the efficiency is too low, and the substances with high melting points cannot be melted; if the temperature is too high, the raw materials can be oxidized and aged to be ineffective.

[0039] In the application, the step of mixing the liquid mixture with the oxidant is preferably reducing the temperature of the liquid mixture to 75-85°C and then mixing with the oxidant.

[0040] In the application, the temperature after cooling is preferably 75-85°C, and in specific embodiments, the temperature after cooling can be 75°C, 80°C or 85°C. If the temperature is too high, the oxidant can react violently in advance, which is not safe for production; if the temperature is too low, the liquid mixture can be cooled into a solid and cannot be uniformly mixed, which can greatly reduce the effect of the product.

[0041] The application preferentially mixes the organic wax, the emulsifier, the butene copolymer, the antioxidant and the zinc-containing compound, so that each substance is uniformly mixed, and then the oxidant is added, so that the zinc ion and the organic ligand form a stable zinc ion chelate under the action of the oxidant.

[0042] The application further provides a reactive deodorant, which comprises inorganic fillers and effective components; the mass ratio of the inorganic fillers and the effective components is 2-5:5-8; and the effective components are the above-mentioned reactive deodorant matrix.

[0043] In the application, the mass ratio of the inorganic fillers and the effective components is preferably 2:8-5:5, and in a specific embodiment, the mass ratio of the inorganic fillers and the effective components 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 the application, the inorganic fillers preferably comprise at least one of white carbon black, calcium carbonate, porous silicate, kaolin, kaolinite and talc powder. The inorganic fillers are mainly used as carriers, which are beneficial to the production of the melted material into powder and the use of customers.

[0045] In the application, when the reactive deodorant is composed of inorganic fillers and effective components, the reactive deodorant is preferably a powder; and the preparation method of the reactive deodorant preferably comprises: mixing the inorganic fillers and the effective components to obtain a powder reactive deodorant.

[0046] The application does not have special requirements for the mixing method, and the technical means known in the art can be used.

[0047] In the application, the reactive deodorant preferably further comprises a polymer carrier. The polymer preferably comprises any one of rubber, plastic or thermoplastic elastomer. The polymer is mainly used as a masterbatch to reduce dust flying during the use of customers.

[0048] In the application, the mass ratio of the polymer carrier and the effective components is preferably 2:8-3.5:6.5, and in a specific embodiment, the mass ratio of the polymer carrier and the effective components can be 2:8, 2.5:7.5, 3:7 or 3.5:6.5.

[0049] In the application, when the reactive deodorant further comprises a polymer carrier, the reactive deodorant is preferably a granular preparation; and the preparation method of the reactive deodorant preferably comprises: mixing the inorganic fillers and the effective components to obtain a powder, and then mixing the powder with the polymer carrier and granulating to obtain the granular preparation of the reactive deodorant.

[0050] In the present application, the powder or granular preparation is preferably added as a filler at the initial mixing of the high molecular raw material. The purpose of using the powder or granular preparation is mainly to facilitate the weighing of the customer and to reduce the dust flying during the use of the customer.

[0051] The present application also provides the use of the reaction-type odor-removing agent precursor prepared by the preparation method in the elimination of odor.

[0052] The present application also provides a method for removing odor from high molecular materials, wherein the reaction-type odor-removing agent precursor is used as a filler of the high molecular materials; and the mass of the reaction-type odor-removing agent accounts for 0.5-1.5% of the total amount of the high molecular materials. The odor-removing agent precursor prepared by the present application is suitable for any high molecular materials.

[0053] In the present application, the high molecular materials preferably include at least one of ethylene-propylene rubber, styrene-butadiene rubber, ABS resin, asphalt, natural rubber, polyethylene and polypropylene.

[0054] In the present application, the mass of the reaction-type odor-removing agent preferably accounts for 0.5-1.5% of the total amount of the high molecular materials, and in the specific embodiment, the mass of the reaction-type odor-removing agent can account for 0.5%, 0.8%, 1%, 1.2% or 1.5% of the total amount of the high molecular materials. The reaction-type odor-removing agent precursor prepared by the present application is added as a filler of the high molecular materials in the preparation process of the high molecular materials. In the forming and processing of the high molecular materials, the small molecular odor molecules in the liquid high molecular materials are dissolved in the organic wax and the emulsifier, and chemically bonded with the zinc ion chelating agent, so that the odor molecules are quickly and permanently removed.

[0055] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the present application will be described clearly and completely below in combination with specific embodiments. The described embodiments are only some of the embodiments of the present application, but not all the embodiments. Any modification, equivalent replacement, improvement, etc. made to the embodiments of the present application according to the technical essence and general principles of the present application without creative labor shall be within the protection scope of the present application.

[0056] Embodiment 1

[0057] 44.6% microcrystalline wax, 17.9% paraffin wax emulsifier (206 paraffin wax emulsifier of Shanghai Genun Chemical Technology Co., Ltd.), 1.8% antioxidant CPL, 27.7% zinc acrylate and 4.5% polyisobutylene (PB1300 of Da Lin, Korea) are mixed in a heating and stirring device at 150°C until each material is completely melted to obtain a liquid mixture. The liquid mixture is cooled to 80°C, 3.5% bis(tert-butyl peroxyisopropyl) benzene (BIPB) is added and uniformly mixed to obtain a reaction-type odor-removing agent precursor.

[0058] Mix 60% reactive odor-removing agent precursor and 40% white carbon black by mass percentage, stir at 50°C and 35 rpm for 15 min, cool to room temperature, and prepare a powder.

[0059] When the prepared reactive odor-removing agent precursor is used for asphalt odor removal, the asphalt is crushed before modification, the modifier and 1.5% odor-removing agent by mass percentage of the total modified asphalt are mixed at room temperature, the temperature is raised to the modification temperature, and the modified asphalt is discharged. The modified asphalt is kept at 185°C for 5 h, and the modified asphalt still has no odor.

[0060] Example 2

[0061] Mix 44.6% paraffin wax, 17.9% paraffin wax emulsifier, 1.8% antioxidant CPL, 27.7% zinc methacrylate, and 4.5% polyisobutylene by mass percentage in a heating and stirring device at 125°C until the materials are completely melted, to obtain a liquid mixture. Cool the liquid mixture to 80°C, add 3.5% hydrogen peroxide (concentration of 3.5 wt%), and mix uniformly to obtain a reactive odor-removing agent precursor.

[0062] Mix 60% reactive odor-removing agent precursor and 40% white carbon black by mass percentage, stir at 50°C and 35 rpm for 15 min, cool to room temperature, and prepare a powder.

[0063] Example 3

[0064] Mix 44.6% microcrystalline wax, 17.9% paraffin wax emulsifier, 1.8% antioxidant BHT, 27.7% zinc acrylate, and 4.5% polyisobutylene by mass percentage in a heating and stirring device at 125°C until the materials are completely melted, to obtain a liquid mixture. Cool the liquid mixture to 80°C, add 2.0% BIPB and 1.5% hydrogen peroxide, and mix uniformly to obtain a reactive odor-removing agent precursor.

[0065] Mix 60% reactive odor-removing agent precursor and 40% white carbon black by mass percentage, stir at 50°C and 35 rpm for 15 min, cool to room temperature, and prepare a powder.

[0066] Example 4

[0067] Mix 44.6% microcrystalline wax, 17.9% paraffin wax emulsifier, 1.8% antioxidant BHT, 27.7% zinc acrylate, and 4.5% polyisobutylene by mass percentage in a heating and stirring device at 125°C until the materials are completely melted, to obtain a liquid mixture. Cool the liquid mixture to 80°C, add 2.0% BIPB and 1.5% potassium permanganate, and mix uniformly to obtain a reactive odor-removing agent precursor.

[0068] Mix 60% reactive odor-removing agent precursor, 10% white carbon black and 30% porous silicate (A4 type from Yingkou Zhongbao Molecular Sieve Co., Ltd.) by mass percentage, stir at 50°C for 15 min at rpm, cool to room temperature, and make into a powder.

[0069] Example 5

[0070] Mix 44.6% microcrystalline wax, 17.9% paraffin wax emulsifier, 1.8% antioxidant CPL, 27.7% zinc ricinoleate and 4.5% polyisobutylene by mass percentage in a heating and stirring device at 125°C until each material is completely melted, to obtain a liquid mixture. Cool the liquid mixture to 80°C, add 3.5% BIPB, and mix uniformly to obtain a reactive odor-removing agent precursor.

[0071] Mix 60% reactive odor-removing agent precursor and 40% white carbon black by mass percentage, stir at 50°C for 15 min at 35 rpm, cool to room temperature, and make into a powder. Then mix 70% of the powder and 30% ethylene-propylene rubber by mass percentage in a Banbury mixer, extrude and granulate to obtain a granular preparation.

[0072] Example 6

[0073] Mix 44.6% microcrystalline wax, 17.9% paraffin wax emulsifier, 1.8% antioxidant BHT, 27.7% zinc acrylate and 4.5% polyisobutylene by mass percentage in a heating and stirring device at 125°C until each material is completely melted, to obtain a liquid mixture. Cool the liquid mixture to 80°C, add 2.0% BIPB and 1.5% potassium permanganate, and mix uniformly to obtain a reactive odor-removing agent precursor.

[0074] Mix 60% reactive odor-removing agent precursor, 10% white carbon black and 30% porous silicate by mass percentage, stir at 50°C for 15 min at 35 rpm, cool to room temperature, and make into a powder. Then mix 70% of the powder and 30% butadiene-styrene rubber by mass percentage in a Banbury mixer, extrude and granulate to obtain a granular preparation.

[0075] Comparative Example 1 (without polyisobutylene)

[0076] Mix 46.8% microcrystalline wax, 18.8% paraffin wax emulsifier, 1.9% antioxidant BHT and 29.0% zinc acrylate by mass percentage in a heating and stirring device at 125°C until each material is completely melted, to obtain a liquid mixture. Cool the liquid mixture to 80°C, add 2.0% BIPB and 1.5% potassium permanganate, and mix uniformly to obtain a reactive odor-removing agent precursor.

[0077] The obtained reactive odor-removing agent precursor has no effect at all after removing odor from asphalt. The removal of odor from asphalt is the same as in Example 1.

[0078] Comparative Example 2 (without antioxidant)

[0079] By mass percentage, 44.6% microcrystalline wax, 19.7% paraffin wax emulsifier, 27.7% zinc acrylate and 4.5% polyisobutylene are mixed in a heating stirring device at 125°C until each material is completely melted to obtain a liquid mixture. The liquid mixture is cooled to 80°C, 2.0% BIPB and 1.5% potassium permanganate are added and mixed uniformly to obtain a reaction type odor removal agent precursor.

[0080] The obtained reaction type odor removal agent precursor is used for odor removal of asphalt. No odor appears within 1-2h at room temperature, but odor reappears after 3h.

[0081] The organic high molecular material odor removal agent precursor prepared in Examples 1-6 is mixed uniformly with the raw material polypropylene and the modifier maleic anhydride for preparing the high molecular material as a filler of the high molecular material, granulated, injection molded to obtain a plastic product for standby, wherein the addition amount of the odor removal agent precursor is 1% of the total mass of the raw materials of the high molecular material. The bag method is used, and the analysis conditions are: 100g of the plastic product is crushed into fine particles (particle size 2-3mm) and loaded into a 10L sample bag, 5L of nitrogen is introduced, the sample bag is heated to 60°C, the detection time is 2h (s), the capture is 1L, and the capture speed is 102mL / min. According to the EU environmental protection standard SHAEC23003151608, TDS-GC-MS is used for analysis and detection, and the results are shown in Table 1 according to the REACH regulation. (Compare with the detection effect of the plastic odor removal agent in the prior art, the plastic odor removal agent JH-200A of Ningbo Jiahe New Material Technology Co., Ltd. is an adsorptive odor removal agent)

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

[0083]

[0084] From the test data in Table 1, it can be seen that the organic high molecular material odor removal agent precursor prepared in Examples 1-6 of the present application has good removal effect on small molecule benzene, olefin and alkane, and these total volatile organic compounds (TVOC), which reduces the release amount of TVOC. The adsorptive odor removal agent used in the prior art reduces the odor of the product at room temperature, but the TVOC content is found to have no effect on TVOC through heating test. The high molecular material obtained by adding the present application during high molecular material forming and processing has weak or no odor at high temperature production, which is a truly environmentally friendly solution.

[0085] The organic high polymer material odor removing agent prepared in Examples 1-6 is mixed with the raw materials for preparing the high polymer material as a filler of the high polymer material, granulated, injection molded to obtain a plastic product, which is ready for use, wherein the addition amount of the odor removing agent matrix is 1% of the total mass of the raw materials of the high polymer material. The bag method is adopted, and the analysis conditions are as follows: 100 g of the sample is loaded into a 10 L sample bag, 5 L of nitrogen is introduced, the sample bag is heated to 60°C, the detection time is 2 hrs, the capture is 1 L, and the capture speed is 501 mL / min. The HPLC-DAD is used for analysis and detection according to the EU environmental protection standard SHAEC23003151607, and the ROHS instruction is met. The results are shown in Table 2.

[0086] Table 2: Release amount of aldehyde and ketone substances

[0087]

[0088] From the test data in Table 2, it can be known that the organic high polymer material odor removing agent matrix prepared in Examples 1-6 has a good removal effect on small molecule aldehyde and ketone substances.

[0089] The organic high polymer material odor removing agent prepared in the application has no influence on the mechanical properties of the high polymer material when it is added to the high polymer material as a filler of the high polymer material, so that the mechanical properties of the obtained high polymer material remain consistent before and after the addition of the organic high polymer material odor removing agent.

[0090] Application Example 1

[0091] The organic high polymer material odor removing agent matrix prepared in Example 1 is used in the tire rubber, and the composition of the tire rubber is as follows: 60 parts of natural rubber, 20 parts of butadiene styrene rubber, 20 parts of cis-butadiene rubber, 50 parts of carbon black, 20 parts of aromatic oil, 20 parts of calcium carbonate, 5 parts of zinc oxide, 2 parts of stearic acid, 3 parts of anti-aging agent (2 parts of anti-aging agent 4010NA and 1 part of anti-aging agent RD), 2.8 parts of accelerator (0.15 parts of accelerator TMTD, 1.8 parts of accelerator CBS, and 0.85 parts of accelerator DM), and 2.5 parts of sulfur, wherein 3 parts of the organic high polymer material odor removing agent matrix is added together with the zinc oxide and the like. The application test is carried out in Chongqing Jiulong Rubber Factory at 70°C for 72 h. The test results show that the aging coefficient of the tire rubber is increased from 0.72 to 0.96, which is increased by 33%.

[0092] Application Example 2

[0093] The organic high molecular material deodorant prepared in Example 1 is used in a car sealing strip, and the composition of the car sealing strip is: EPDM 100 parts, paraffin oil 60 parts, carbon black 65 parts, calcium carbonate 25 parts, zinc oxide 5 parts, stearic acid 1.5 parts, antioxidant RD 2 parts, accelerator (comprehensive accelerator EM55 of Kawaguchi Chemical Industry Co., Ltd. of Japan) 3.2 parts, sulfur 1.5 parts, wherein the organic high molecular material deodorant 3 parts is added together with zinc oxide and the like. The deodorization test is carried out in Zhejiang Xingyu Automobile Parts Co., Ltd., and the odor level is divided into 6 levels, level 1: no odor is felt, level 2: odor is felt but no disturbing factor, level 3: odor is obviously felt but no disturbing factor, level 4: there is a disturbing factor, level 5: there is a serious disturbing factor, and level 6: it is unbearable. The odor level of the dense strip is required to be ≤3.0 level. The test results show that after the organic high molecular material deodorant prepared by the application is applied, the odor level of the car sealing strip is reduced from level 4 to level 3, and it is qualified at one time (their product original odor level is level 4, and now all the products are baked and deodorized before being shipped).

[0094] The above only describes the preferred embodiments of the present application, and it should be noted that for ordinary skilled in the art, some improvements and refinements can be made without departing from the principles of the present application, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A reactive odor scavenger precursor, characterized in that, The raw materials include, in mass percentage, 37-65% of organic wax, 12-20% of emulsifier, 1-5% of butene copolymer, 1-3% of antioxidant, 1-5% of oxidant, and 20-30% of zinc-containing compound.

2. The reactive odor scavenger precursor of claim 1, wherein, The zinc-containing compound includes zinc-containing organic compound and / or zinc-containing inorganic compound.

3. The reactive odor scavenger precursor of claim 1, wherein, The oxidant includes inorganic oxidant and / or organic oxidant.

4. The reactive odor scavenger precursor of claim 3, wherein, The inorganic oxidant includes at least one of hydrogen peroxide, potassium permanganate, and potassium hypochlorite. The organic oxidant includes organic peroxide oxidant and / or acrylate compound.

5. The reactive odor scavenger precursor of claim 1, wherein, The emulsifier includes fatty alcohol polyoxyethylene ether or derivative thereof. The butene copolymer includes polybutene and / or polyisobutene. 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 producing the reactive odor scavenger precursor according to any one of claims 1 to 5, characterized in that, The method includes the following steps: Mixing the organic wax, emulsifier, butene copolymer, antioxidant, and zinc-containing compound, heating to melt each material, and obtaining liquid mixture; Mixing the liquid mixture with oxidant after cooling, and obtaining the reaction-type odor-removing agent precursor.

7. A reactive odor scavenger, characterized by, The inorganic filler and effective component; the mass ratio of the inorganic filler and effective component is 2:8-5:5; the effective component is the reaction-type odor-removing agent precursor of any one of claims 1-5.

8. The reactive odor scavenger according to claim 7, wherein The high polymer carrier; the mass ratio of the high polymer carrier and effective component is 2:8-3.5:6.

5.

9. The use of the reaction-type odor-removing agent precursor of any one of claims 1-5 or the reaction-type odor-removing agent of any one of claims 7-8 in eliminating odor.

10. A method for deodorizing a high molecular material, characterized by, The reaction-type odor-removing agent precursor of any one of claims 1-5 or the reaction-type odor-removing agent of any one of claims 7-8 is used as filler of high polymer material; the mass of the reaction-type odor-removing agent precursor or the reaction-type odor-removing agent accounts for 0.5-1.5% of the total mass of the high polymer material.

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