Highly efficient harmless pet cat litter and its preparation method

Abstract

The application discloses a kind of efficient harmless pet cat litter and preparation method thereof, belong to cat litter making technical field, the method is first using polyacrylamide, sodium alginate, (3-acrylamide propyl) trimethylammonium chloride is formed by free radical polymerization method aquagel structure;Then same plant residue, wood chip is pressed together, and is dried to be made into cat litter.The application adopts the above-mentioned one kind of efficient harmless pet cat litter and preparation method thereof, deodorization ability is strong, adsorption capacity is good, and the strength of group is high, after group is not easy to be stepped broken by pet cat, with the performance of not picking up in short time also will not emit peculiar smell, easy to handle, for pet cat owner and pet are non-toxic harmless, cat litter preparation method is simple and efficient, and it is convenient for promotion.

Description

Technical Field

[0001] This invention relates to the field of cat litter manufacturing technology, and in particular to a highly efficient and harmless pet cat litter and its preparation method. Background Technology

[0002] Nowadays, as people's living standards gradually improve and they become more materially secure, they are paying more attention to their spiritual lives. Keeping pets is becoming increasingly common, and pet-related items are gaining importance. Among these, items for cats and dogs are the most popular, common, and in highest demand. Cats are very clean animals and usually relieve themselves in specific places. To maintain a hygienic environment around their feline companions, owners need a product that absorbs waste and reduces odor—cat litter.

[0003] Cat litter is a product designed to meet the needs of cats and their owners, providing a clean, hygienic, and convenient living environment. With continuous advancements in technology and materials, the types and performance of cat litter are constantly improving. While cat litter offers convenience to cat owners in many ways, some common problems exist: First, there's the issue of dust. Some cat litters may generate dust, which can affect the respiratory systems of both cats and humans. This is especially true for cats or humans sensitive to dust, potentially causing discomfort. Another major issue is inconsistent absorbency. Different types of cat litter have varying absorbency, and some may perform poorly, leading to ineffective clotting of excrement and increased cleaning difficulty. There's also the issue of odor control. Although many cat litters claim to have excellent odor control, in some cases, especially in multi-cat households or with prolonged use, insufficient odor control may still occur. These problems with cat litter are also the most pressing concerns for consumers. Even a good invention cannot avoid these issues, and their effectiveness will make cat owners more discerning when choosing cat litter, allowing them to find the most suitable product based on their own and their cat's needs. Summary of the Invention

[0004] The purpose of this invention is to provide a highly efficient and harmless pet cat litter and its preparation method, which can efficiently absorb the excrement of pet cats and has the effects of deodorization, harmlessness and pollution-free.

[0005] To achieve the above objectives, this invention provides a highly efficient and harmless pet cat litter. The main structure of the absorbent core material is a ternary network hydrogel structure of polyacrylamide, alginate, and (3-acrylamidopropyl)trimethylammonium chloride. By mass, it includes the following components: 10-20 parts alginate, 1-2 parts acrylamide, 1-6 parts quaternary ammonium salt, 0.1-0.3 parts initiator, 0.01-0.03 parts crosslinking agent, 0.1-0.2 parts co-initiator, 10-60 parts crop residue, and 10-60 parts sawdust.

[0006] Preferably, the alginate includes one of sodium alginate and potassium alginate, and the quaternary ammonium salt is (3-acrylamidopropyl)trimethylammonium chloride.

[0007] Preferably, the initiator is ammonium persulfate, the crosslinking agent is N,N′-methylenebisacrylamide, and the co-initiator is N,N,N′,N′-tetramethylethylenediamine.

[0008] Preferably, the crop residue is a mixture of corn residue and peanut shells.

[0009] This invention provides a method for preparing highly efficient and harmless pet cat litter, comprising the following steps:

[0010] Step 1: Preparation of hydrogel precursor

[0011] Acrylamide and (3-acrylamidopropyl)trimethylammonium chloride were added to an alginate solution and stirred until dissolved to obtain a hydrogel precursor solution.

[0012] Step 2: Preparation of hydrogel

[0013] Initiator, crosslinking agent and co-initiator are added to the hydrogel precursor solution obtained in step one, and after stirring, it is poured into a cylindrical mold to prepare hydrogel.

[0014] Step 3: Prepare cat litter

[0015] The hydrogel prepared in step two is mixed with crop residue and wood chips, stirred and pressed into a fixed shape, placed in an oven to dry, and then removed to obtain cat litter.

[0016] Preferably, the mass fraction of alginate in step one is 0.1-1%.

[0017] Preferably, the reaction temperature during stirring in step one is 10-40℃.

[0018] Preferably, the hydrogel is prepared by free radical polymerization in step two.

[0019] Preferably, the temperature of the oven in step three is 30-80℃, and the drying time is 8-24h.

[0020] Preferably, the cat litter prepared in step three has a length of 0.5-1.5 cm and a cross-sectional area of ​​0.4-1.2 cm². 2 Columnar cat litter.

[0021] Therefore, the present invention, employing the above-mentioned highly efficient and harmless pet cat litter and its preparation method, has the following beneficial effects:

[0022] 1. It can effectively deodorize and absorb excrement, and its clumping strength is high. Even if it is not cleaned up for a short period of time after clumping, it will not emit odor.

[0023] 2. Due to its hydrogel network structure, it has a strong adsorption function for pet cat excrement. The gel-forming property of hydrogel also makes it less prone to breakage. It is not easy to break apart and emit odor when pet cats step on it. In the dried state, this invention is also not easy to stick to the soles of pet cats' paws or fur.

[0024] 3. This hydrogel material is harmless and toxic to both the owner and the cat, and the litter is easy to dispose of after use.

[0025] The technical solution of the present invention will be further described in detail below through embodiments. Detailed Implementation

[0026] The technical solution of the present invention will be further described below through embodiments.

[0027] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.

[0028] Example

[0029] This invention provides a highly efficient and harmless pet cat litter. The main structure of the absorbent core material is a ternary network hydrogel structure of polyacrylamide, alginate, and (3-acrylamidopropyl)trimethylammonium chloride. By weight, it comprises the following components: 10-20 parts alginate, 1-2 parts acrylamide, 1-6 parts quaternary ammonium salt, 0.1-0.3 parts initiator, 0.01-0.03 parts crosslinking agent, 0.1-0.2 parts co-initiator, 10-60 parts crop residue, and 10-60 parts sawdust. Initiators are mainly used in polymerization reactions to initiate the polymerization process; they can generate free radicals, cations, or anions, thereby initiating the growth of polymer chains. Crosslinking agents are used to form chemical bonds between polymers, improving the mechanical strength, thermal stability, and chemical stability of the material. Co-initiators are used with initiators to improve the efficiency and control of the polymerization reaction, lower the decomposition temperature of the initiator, increase the concentration of active free radicals, and make the polymerization reaction more controllable and uniform. Agricultural residues and sawdust are mainly used to form aggregates, increase the specific surface area of ​​hydrogels, and improve product performance.

[0030] Alginate includes one of sodium alginate (SA) and potassium alginate, with the quaternary ammonium salt being (3-acrylamidopropyl)trimethylammonium chloride. The initiator is ammonium persulfate (APS), the crosslinking agent is N,N′-methylenebisacrylamide (Bis), the co-initiator is N,N,N′,N′-tetramethylethylenediamine (TEMED), and the agricultural residue is a mixture of corn residue, peanut shells, etc., but not limited to these.

[0031] A method for preparing highly efficient and harmless pet cat litter includes the following steps:

[0032] Step 1: Preparation of hydrogel precursor

[0033] Acrylamide (AM) and (3-acrylamidopropyl)trimethylammonium chloride were added to a 0.1-1% alginate solution and stirred. The reaction temperature was 10-40℃. After dissolution, a hydrogel precursor solution was obtained.

[0034] Step 2: Preparation of hydrogel

[0035] The hydrogel was prepared by free radical polymerization. An initiator, a crosslinking agent and a co-initiator were added to the hydrogel precursor solution obtained in step one, and the mixture was stirred and then poured into a cylindrical mold to prepare the hydrogel.

[0036] Step 3: Prepare cat litter

[0037] The hydrogel prepared in step two is mixed with crop residue and sawdust, stirred, and pressed into a fixed shape. It is then dried in an oven at 30-80℃ for 8-24 hours. The resulting cat litter is 0.5-1.5 cm long and has a cross-sectional area of ​​0.4-1.2 cm². 2 Cat litter can be made into columnar shapes, or into spherical shapes.

[0038] The cat litter prepared is suitable for various types of cats, including but not limited to medium and small cats.

[0039] Example 1

[0040] A highly efficient and harmless pet cat litter was prepared into a hydrogel using a free radical polymerization method. 0.5g of SA was dissolved in 100mL of deionized water at 40℃ to prepare an SA solution. 2g of AM and 3mL of (3-acrylamidopropyl)trimethylammonium chloride (75wt% H2O) were dissolved in 10mL of the SA solution. 0.2g of APS and 0.02g of Bis were added, and the mixture was heated in a 40℃ water bath until fully dissolved and reacted. 400μL of TEMED was added, and the mixture was stirred and poured into a mold to prepare the hydrogel.

[0041] The preparation method of pet cat litter is as follows: after taking out the above hydrogel, mix it with 3g of corn residue and 3g of wood chips, press it into a fixed shape, place it in an oven at 50℃ and dry it for 12 hours, and then take it out to obtain cat litter.

[0042] This hydrogel material has extremely strong water absorption properties, which can efficiently absorb and encapsulate pet cat excrement. At the same time, the hydrogel material has a certain degree of viscosity, which can bind cornmeal and sawdust together. The network structure in the hydrogel has a high degree of aggregation and can effectively lock in water, making it less prone to breakage.

[0043] The prepared cat litter works quickly, showing results in a short time; noticeable effects can be observed within minutes, as cat excrement is rapidly absorbed and encapsulated; the litter has good deodorizing properties, with virtually no odor for a long time; the litter clumps well and is not easily broken; cats are unlikely to crush the litter containing their excrement in the litter box, and its clumping properties make it easy to handle—simply replace it.

[0044] Example 2

[0045] A highly efficient and harmless pet cat litter was prepared into a hydrogel using a free radical polymerization method. 0.8 g of SA was dissolved in 100 mL of deionized water at 40 °C to prepare an SA solution. 2 g of AM and 3 mL of (3-acrylamidopropyl)trimethylammonium chloride (75 wt% H2O) were dissolved in 10 mL of the SA solution. 0.2 g of APS and 0.02 g of Bis were added, and the mixture was heated in a 40 °C water bath until fully dissolved and reacted. 400 μL of TEMED was added, and the mixture was stirred and poured into a mold to prepare the hydrogel.

[0046] The preparation method of pet cat litter is as follows: after taking out the above hydrogel, mix it with 5g of corn residue and 3g of wood chips, press it into a fixed shape, place it in an oven at 50℃ and dry it for 12 hours, and then take it out to obtain cat litter.

[0047] This hydrogel material has extremely strong water absorption properties, which can efficiently absorb and encapsulate pet cat excrement. At the same time, the hydrogel material has a certain degree of viscosity, which can bind cornmeal and sawdust together. The network structure in the hydrogel has a high degree of aggregation and can effectively lock in water, making it less prone to breakage.

[0048] The prepared cat litter works quickly, showing results in a short time; noticeable effects can be observed within minutes, as cat excrement is rapidly absorbed and encapsulated; the litter has good deodorizing properties, with virtually no odor for a long time; the litter clumps well and is not easily broken; cats are unlikely to crush the litter containing their excrement in the litter box, and its clumping properties make it easy to handle—simply replace it.

[0049] Example 3

[0050] A highly efficient and harmless pet cat litter was prepared into a hydrogel using a free radical polymerization method. 0.6 g of SA was dissolved in 100 mL of deionized water at 40 °C to prepare an SA solution. 2 g of AM and 3 mL of (3-acrylamidopropyl)trimethylammonium chloride (75 wt% H2O) were dissolved in 10 mL of the SA solution. 0.2 g of APS and 0.02 g of Bis were added, and the mixture was heated in a 40 °C water bath until fully dissolved and reacted. 400 μL of TEMED was added, and the mixture was stirred and poured into a mold to prepare the hydrogel.

[0051] The preparation method of pet cat litter is as follows: after taking out the above hydrogel, mix it with 5g of corn residue and 5g of sawdust, press it into a fixed shape, place it in an oven at 50℃ and dry it for 12 hours, and then take it out to obtain cat litter.

[0052] This hydrogel material has extremely strong water absorption properties, which can efficiently absorb and encapsulate pet cat excrement. At the same time, the hydrogel material has a certain degree of viscosity, which can bind cornmeal and sawdust together. The network structure in the hydrogel has a high degree of aggregation and can effectively lock in water, making it less prone to breakage.

[0053] The prepared cat litter works quickly, showing results in a short time; noticeable effects can be observed within minutes, as cat excrement is rapidly absorbed and encapsulated; the litter has good deodorizing properties, with virtually no odor for a long time; the litter clumps well and is not easily broken; cats are unlikely to crush the litter containing their excrement in the litter box, and its clumping properties make it easy to handle—simply replace it.

[0054] Therefore, this invention employs the aforementioned highly efficient and harmless pet cat litter and its preparation method. This method uses polyacrylamide, sodium alginate, and (3-acrylamidopropyl)trimethylammonium chloride to form a hydrogel structure through free radical polymerization. Then, it is pressed together with plant residue and wood chips, dried, and made into cat litter. The prepared cat litter has strong deodorizing ability, good adsorption capacity, and high clumping strength. After clumping, it is not easily crushed by pet cats. It has the property of not emitting odors even if not cleaned up for a short period of time. It is easy to handle and is non-toxic and harmless to pet cat owners and pets. The cat litter preparation method is simple, efficient, and easy to promote.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A highly efficient and non-hazardous cat litter, characterized by: The main structure of the absorbent core layer material is a ternary network hydrogel structure of polyacrylamide, alginate, (3-acrylamidopropyl) trimethylammonium chloride, and includes the following components by mass fraction: alginate 10-20 parts, acrylamide 1-2 parts, quaternary ammonium salt 1-6 parts, initiator 0.1-0.3 parts, crosslinking agent 0.01-0.03 parts, assistant initiator 0.1-0.2 parts, crop residue 10-60 parts, and wood chips 10-60 parts. The preparation method of the pet cat litter comprises the following steps: Step one, preparation of hydrogel precursor Acrylamide and (3-acrylamidopropyl) trimethylammonium chloride are added to the alginate solution and stirred to dissolve, thereby preparing a hydrogel precursor solution; Step two, preparation of hydrogel The initiator, crosslinking agent, and assistant initiator are added to the hydrogel precursor solution obtained in step one, stirred, and then poured into a cylindrical mold to prepare the hydrogel; Step three, preparation of cat litter The hydrogel prepared in step two is mixed with crop residue and wood chips, stirred, and pressed into a fixed shape, and then placed in an oven for drying, thereby obtaining the cat litter.

2. A highly efficient and harmless cat litter according to claim 1, characterized in that: The alginate includes one of sodium alginate and potassium alginate, and the quaternary ammonium salt is (3-acrylamidopropyl) trimethylammonium chloride.

3. The efficient and harmless litter for pet cats according to claim 1, characterized in that: The initiator is ammonium persulfate, the crosslinking agent is N,N'-methylenebisacrylamide, and the assistant initiator is N,N,N',N'-tetramethylethylenediamine.

4. The efficient and harmless litter for pet cats according to claim 1, characterized in that: The crop residue is a mixture of corn residue and peanut shells.

5. The efficient and harmless litter for pet cats according to claim 1, characterized in that: The mass fraction of the alginate in step one is 0.1-1%.

6. A highly efficient and harmless cat litter according to claim 1, characterized in that: The reaction temperature during stirring in step one is 10-40°C.

7. The efficient and harmless litter for pet cats according to claim 1, characterized in that: The hydrogel is prepared by a free radical polymerization method in step two.

8. The efficient and harmless litter for pet cats according to claim 1, characterized in that: The temperature of the oven in step three is 30-80°C, and the drying time is 8-24 h.

9. The efficient and harmless litter for pet cats according to claim 1, characterized in that: The cat litter prepared in the third step is a cylindrical cat litter with a length of 0.5-1.5 cm and a cross-sectional area of 0.4-1.2 cm 2 .