CN112715387A - High-hydrophilicity plant fiber cat litter and preparation process thereof - Google Patents

Abstract

The invention discloses high-hydrophilicity plant fiber cat litter which comprises the following raw materials in parts by weight: 50-150 parts of plant fiber, 20-30 parts of gel material, 10-20 parts of bean fiber, 10-15 parts of edible gelatin, 10-30 parts of bentonite and 10-30 parts of zeolite powder; adding plant fiber, bean fiber, edible gelatin and bentonite into a sealed container, and stirring at a constant speed of 100-; feeding the gel material and the zeolite powder into a mixer, mixing for 1-2min, taking out, and sieving to obtain a second component; directly feeding the prepared components into a granulator through conveying equipment, adding the component II, and granulating to obtain the high-hydrophilicity plant fiber cat litter; the gel material has high hydrophilicity, so that the cat litter is easy to wash away by water, and the gel material has high water absorbability and can endow the prepared cat litter with excellent water absorption performance.

Description

High-hydrophilicity plant fiber cat litter and preparation process thereof

Technical Field

The invention belongs to the technical field of pet living goods, and particularly relates to high-hydrophilicity plant fiber cat litter and a preparation process thereof.

Background

Cat litter, commonly known as pet toilet paper, is a necessity for daily life in families where pets are routinely kept, and cat litter is also used in pet stores and pet farms. The cat litter is a pet product with huge consumption, can absorb wastes such as urine and feces of pets and prevent odor from overflowing, and is only second to cat food in importance in the whole pet market. During the use, pour the cat litter into the cat litter basin, lay 7 ~ 10cm thick, just can use for the cat, when clean cat litter basin, shovel out the cubic thing of caking from the cat litter with the cat litter shovel, throw into the garbage bin, and remaining cat litter in the cat litter basin is still clean, can continue to use.

However, the existing cat litter is poor in condensation force and water absorption, the whole pot of cat litter can be replaced only once or limited times, and the cat litter does not have high hydrophilicity and is not easy to wash away by water.

Disclosure of Invention

In order to overcome the technical problems, the invention provides high-hydrophilicity plant fiber cat litter and a preparation process thereof.

The purpose of the invention can be realized by the following technical scheme:

the high-hydrophilicity plant fiber cat litter comprises the following raw materials in parts by weight: 50-150 parts of plant fiber, 20-30 parts of gel material, 10-20 parts of bean fiber, 10-15 parts of edible gelatin, 10-30 parts of bentonite and 10-30 parts of zeolite powder;

the high-hydrophilicity plant fiber cat litter is prepared by the following method:

firstly, adding plant fiber, bean fiber, edible gelatin and bentonite into a sealed container, and uniformly stirring for 10min at a rotating speed of 100-;

secondly, feeding the gel material and the zeolite powder into a mixer, mixing for 1-2min, taking out, and screening to obtain a second component;

and thirdly, directly feeding the prepared components into a granulator through conveying equipment, adding the component II, granulating, and sterilizing the prepared granules at low temperature for 3-5min through tunnel type microwave sterilization equipment, wherein the sterilization temperature is set at 50-70 ℃ to prepare the high-hydrophilicity plant fiber cat litter.

Further, the plant fiber is one or a combination of more of wood flour, rice straw, corn straw, wheat straw, peanut shell, corncob, rice hull, walnut shell and coconut shell.

Further, the gel material is prepared by the following method:

step S1, uniformly mixing urea and 15% by mass of sodium hydroxide solution according to the weight ratio of 4: 6 to prepare mixed alkali liquor, adding cellulose into the mixed alkali liquor, uniformly stirring at the rotating speed of 150 plus 200r/min and reacting for 2 hours, taking out and removing the mixed alkali liquor after the reaction is finished to prepare pretreated cellulose, and controlling the weight ratio of the cellulose to the mixed alkali liquor to be 1-1.5: 100;

step S2, adding the pretreated cellulose and ethylene oxide into a three-neck flask, heating in a water bath at 45-60 ℃, stirring at a constant speed and reacting for 1h, heating to 70-80 ℃ after the reaction is finished, stirring at a constant speed and reacting for 1h, dripping glacial acetic acid to adjust the pH value after the reaction is finished until the pH value is 5-6, then adding glyoxal, stirring at a constant speed and reacting for 30min, performing suction filtration after the reaction is finished, washing the crude product obtained after the suction filtration with 75% acetone aqueous solution by volume fraction for three times, 15min each time, and drying to obtain the treated cellulose, wherein the dosage ratio of the pretreated cellulose to the ethylene oxide is 5 g: 20mL, and the dosage of the glyoxal is 10% of the weight of the pretreated cellulose;

step S3, adding 2, 4-toluene diisocyanate and 1, 4-dioxane into a three-neck flask, introducing nitrogen, placing the three-neck flask into an ice water bath for cooling for 30min, adding hydroxyethyl acrylate and dibutyltin dilaurate, stirring at a constant speed and reacting for 1h, then heating to 15-30 ℃, continuing stirring and reacting for 3h, and refining after the reaction is finished to prepare a modifier, wherein the weight ratio of the 2, 4-toluene diisocyanate to the 1, 4-dioxane to the hydroxyethyl acrylate to the dibutyltin dilaurate is controlled to be 1: 10: 1: 0.1-0.2;

step S4, adding a modifier and the treated cellulose into N, N-dimethylformamide, adding dibutyltin dilaurate, stirring at a constant speed at 30-35 ℃ and reacting for 1h to obtain a product A, adding the product A and N-isopropylacrylamide into the N, N-dimethylformamide, then adding deionized water until a solution with a solid content of 10% is formed, adding potassium persulfate, carrying out bubbling for deoxygenation, reacting for 2h at 60 ℃, then soaking in the deionized water for one week, and carrying out vacuum drying for 70h at 72-80 ℃ to obtain the gel material.

Treating the cellulose with mixed alkali liquor in the step S1 to obtain pretreated cellulose which is alkali cellulose, mixing the pretreated cellulose with ethylene oxide in the step S2, opening the ring of the ethylene oxide, and reacting the pretreated cellulose with the ethylene oxide to obtain treated cellulose which is hydroxyethyl cellulose; mixing 2, 4-toluene diisocyanate and hydroxyethyl acrylate in 1, 4-dioxane in step S3, adding dibutyltin dilaurate as a catalyst, reacting the 2, 4-toluene diisocyanate and the hydroxyethyl acrylate to obtain a modifier with double bonds, mixing the modifier and the treated cellulose in N, N-dimethylformamide in step S4, introducing polymerizable double bonds into the skeleton of hydroxyethyl cellulose, mixing the mixture with N-isopropylacrylamide, copolymerizing the product A with the N-isopropylacrylamide to finally prepare a gel material which has high water absorption and can endow the prepared cat litter with excellent water absorption performance, adding a pH color indicator or an enzyme color indicator into the gel material, observing the health of the cat by color, whether a disease has occurred.

Further, in step S4, the weight ratio of the modifier, the treated cellulose, dibutyltin dilaurate and N, N-dimethylformamide is controlled to 1: 0.1-0.2: 10, and the weight ratio of the product A, N-isopropylacrylamide, potassium peroxodisulfate and N, N-dimethylformamide is controlled to 1: 0.5-0.8: 0.05-0.08: 5-10.

A preparation process of high-hydrophilicity plant fiber cat litter comprises the following steps:

firstly, adding plant fiber, bean fiber, edible gelatin and bentonite into a sealed container, and uniformly stirring for 10min at a rotating speed of 100-;

secondly, feeding the gel material and the zeolite powder into a mixer, mixing for 1-2min, taking out, and screening to obtain a second component;

and thirdly, directly feeding the prepared components into a granulator through conveying equipment, adding the component II, granulating, and sterilizing the prepared granules at low temperature for 3-5min through tunnel type microwave sterilization equipment, wherein the sterilization temperature is set at 50-70 ℃ to prepare the high-hydrophilicity plant fiber cat litter.

The invention has the beneficial effects that:

the high-hydrophilicity plant fiber cat litter is prepared from plant fibers and a gel material, wherein the gel material has high hydrophilicity, so that the cat litter is easily washed away by water, cellulose is treated by mixed alkali liquor in a step S1 in the preparation process to prepare pretreated cellulose which is alkali cellulose, then the pretreated cellulose is mixed with ethylene oxide in a step S2, the ethylene oxide is subjected to ring opening, and the pretreated cellulose is reacted with the ethylene oxide to prepare treated cellulose which is hydroxyethyl cellulose; mixing 2, 4-toluene diisocyanate and hydroxyethyl acrylate in 1, 4-dioxane in step S3, adding dibutyltin dilaurate as a catalyst, reacting the 2, 4-toluene diisocyanate and the hydroxyethyl acrylate to obtain a modifier with double bonds, mixing the modifier and the treated cellulose in N, N-dimethylformamide in step S4, introducing polymerizable double bonds into the skeleton of hydroxyethyl cellulose, mixing the mixture with N-isopropylacrylamide, copolymerizing the product A with the N-isopropylacrylamide to finally prepare a gel material which has high water absorption and can endow the prepared cat litter with excellent water absorption performance, adding a pH color indicator or an enzyme color indicator into the gel material, observing the health of the cat by color, whether a disease has occurred.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

The high-hydrophilicity plant fiber cat litter comprises the following raw materials in parts by weight: 50 parts of corn straw fiber, 20 parts of gel material, 10 parts of bean fiber, 10 parts of edible gelatin, 10 parts of bentonite and 10 parts of zeolite powder;

the high-hydrophilicity plant fiber cat litter is prepared by the following method:

firstly, adding plant fiber, bean fiber, edible gelatin and bentonite into a sealed container, and uniformly stirring for 10min at a rotating speed of 100r/min to obtain a component I;

secondly, feeding the gel material and the zeolite powder into a mixer, mixing for 1min, taking out, and screening to obtain a second component;

and thirdly, directly feeding the prepared components into a granulator through conveying equipment, adding the component II, granulating, and sterilizing the prepared granules at a low temperature for 3min through tunnel type microwave sterilization equipment, wherein the sterilization temperature is set at 50 ℃ to prepare the high-hydrophilicity plant fiber cat litter.

The gel material is prepared by the following method:

step S1, uniformly mixing urea and 15% by mass of sodium hydroxide solution according to the weight ratio of 4: 6 to prepare mixed alkali liquor, adding cellulose into the mixed alkali liquor, stirring at a constant speed of 150r/min and reacting for 2 hours, taking out and removing the mixed alkali liquor after the reaction is finished to prepare pretreated cellulose, and controlling the weight ratio of the cellulose to the mixed alkali liquor to be 1: 100;

step S2, adding the pretreated cellulose and ethylene oxide into a three-neck flask, heating in a water bath at 60 ℃, stirring at a constant speed and reacting for 1h, heating to 70 ℃ after the reaction is finished, stirring at a constant speed and reacting for 1h, dropwise adding glacial acetic acid to adjust the pH value until the pH value is 5 after the reaction is finished, then adding glyoxal, stirring at a constant speed and reacting for 30min, performing suction filtration after the reaction is finished, washing the crude product obtained after the suction filtration with 75% acetone aqueous solution by volume fraction for three times, 15min each time, and drying to obtain the treated cellulose, wherein the dosage ratio of the pretreated cellulose to the ethylene oxide is 5 g: 20mL, and the dosage of the glyoxal is 10% of the weight of the pretreated cellulose;

step S3, adding 2, 4-toluene diisocyanate and 1, 4-dioxane into a three-neck flask, introducing nitrogen, placing the three-neck flask into an ice water bath for cooling for 30min, adding hydroxyethyl acrylate and dibutyltin dilaurate, stirring at a constant speed and reacting for 1h, then heating to 30 ℃, continuing stirring and reacting for 3h, and refining after the reaction is finished to obtain a modifier, wherein the weight ratio of the 2, 4-toluene diisocyanate to the 1, 4-dioxane to the hydroxyethyl acrylate to the dibutyltin dilaurate is controlled to be 1: 10: 1: 0.1;

step S4, adding the modifier and the treated cellulose into N, N-dimethylformamide, adding dibutyltin dilaurate, stirring at a constant speed at 30 ℃ and reacting for 1h to obtain a product A, adding the product A and N-isopropyl acrylamide into N, N-dimethylformamide, then deionized water is added until a solution with 10 percent of solid content is formed, potassium peroxodisulfate is added, oxygen is removed by bubbling, reacting for 2h at 60 ℃, then soaking in deionized water for a week, and drying in vacuum at 80 ℃ for 70h to obtain a gel material, wherein the weight ratio of the modifier to the treated cellulose to the dibutyltin dilaurate to the N, N-dimethylformamide is 1: 0.1: 10, and the weight ratio of the product A, N-isopropylacrylamide to the potassium peroxodisulfate to the N, N-dimethylformamide is 1: 0.5: 0.05: 5.

Example 2

The high-hydrophilicity plant fiber cat litter comprises the following raw materials in parts by weight: 80 parts of corn straw fiber, 22 parts of a gel material, 14 parts of bean fiber, 12 parts of edible gelatin, 15 parts of bentonite and 15 parts of zeolite powder;

the high-hydrophilicity plant fiber cat litter is prepared by the following method:

firstly, adding plant fiber, bean fiber, edible gelatin and bentonite into a sealed container, and uniformly stirring for 10min at a rotating speed of 100r/min to obtain a component I;

secondly, feeding the gel material and the zeolite powder into a mixer, mixing for 1min, taking out, and screening to obtain a second component;

and thirdly, directly feeding the prepared components into a granulator through conveying equipment, adding the component II, granulating, and sterilizing the prepared granules at a low temperature for 3min through tunnel type microwave sterilization equipment, wherein the sterilization temperature is set at 50 ℃ to prepare the high-hydrophilicity plant fiber cat litter.

The gel material is prepared by the following method:

step S1, uniformly mixing urea and 15% by mass of sodium hydroxide solution according to the weight ratio of 4: 6 to prepare mixed alkali liquor, adding cellulose into the mixed alkali liquor, stirring at a constant speed of 150r/min and reacting for 2 hours, taking out and removing the mixed alkali liquor after the reaction is finished to prepare pretreated cellulose, and controlling the weight ratio of the cellulose to the mixed alkali liquor to be 1: 100;

step S2, adding the pretreated cellulose and ethylene oxide into a three-neck flask, heating in a water bath at 60 ℃, stirring at a constant speed and reacting for 1h, heating to 70 ℃ after the reaction is finished, stirring at a constant speed and reacting for 1h, dropwise adding glacial acetic acid to adjust the pH value until the pH value is 5 after the reaction is finished, then adding glyoxal, stirring at a constant speed and reacting for 30min, performing suction filtration after the reaction is finished, washing the crude product obtained after the suction filtration with 75% acetone aqueous solution by volume fraction for three times, 15min each time, and drying to obtain the treated cellulose, wherein the dosage ratio of the pretreated cellulose to the ethylene oxide is 5 g: 20mL, and the dosage of the glyoxal is 10% of the weight of the pretreated cellulose;

step S3, adding 2, 4-toluene diisocyanate and 1, 4-dioxane into a three-neck flask, introducing nitrogen, placing the three-neck flask into an ice water bath for cooling for 30min, adding hydroxyethyl acrylate and dibutyltin dilaurate, stirring at a constant speed and reacting for 1h, then heating to 30 ℃, continuing stirring and reacting for 3h, and refining after the reaction is finished to obtain a modifier, wherein the weight ratio of the 2, 4-toluene diisocyanate to the 1, 4-dioxane to the hydroxyethyl acrylate to the dibutyltin dilaurate is controlled to be 1: 10: 1: 0.1;

step S4, adding the modifier and the treated cellulose into N, N-dimethylformamide, adding dibutyltin dilaurate, stirring at a constant speed at 30 ℃ and reacting for 1h to obtain a product A, adding the product A and N-isopropyl acrylamide into N, N-dimethylformamide, then deionized water is added until a solution with 10 percent of solid content is formed, potassium peroxodisulfate is added, oxygen is removed by bubbling, reacting for 2h at 60 ℃, then soaking in deionized water for a week, and drying in vacuum at 80 ℃ for 70h to obtain a gel material, wherein the weight ratio of the modifier to the treated cellulose to the dibutyltin dilaurate to the N, N-dimethylformamide is 1: 0.1: 10, and the weight ratio of the product A, N-isopropylacrylamide to the potassium peroxodisulfate to the N, N-dimethylformamide is 1: 0.5: 0.05: 5.

Example 3

The high-hydrophilicity plant fiber cat litter comprises the following raw materials in parts by weight: 120 parts of corn straw fiber, 25 parts of a gel material, 18 parts of bean fiber, 14 parts of edible gelatin, 25 parts of bentonite and 25 parts of zeolite powder;

the high-hydrophilicity plant fiber cat litter is prepared by the following method:

firstly, adding plant fiber, bean fiber, edible gelatin and bentonite into a sealed container, and uniformly stirring for 10min at a rotating speed of 100r/min to obtain a component I;

secondly, feeding the gel material and the zeolite powder into a mixer, mixing for 1min, taking out, and screening to obtain a second component;

and thirdly, directly feeding the prepared components into a granulator through conveying equipment, adding the component II, granulating, and sterilizing the prepared granules at a low temperature for 3min through tunnel type microwave sterilization equipment, wherein the sterilization temperature is set at 50 ℃ to prepare the high-hydrophilicity plant fiber cat litter.

The gel material is prepared by the following method:

step S1, uniformly mixing urea and 15% by mass of sodium hydroxide solution according to the weight ratio of 4: 6 to prepare mixed alkali liquor, adding cellulose into the mixed alkali liquor, stirring at a constant speed of 150r/min and reacting for 2 hours, taking out and removing the mixed alkali liquor after the reaction is finished to prepare pretreated cellulose, and controlling the weight ratio of the cellulose to the mixed alkali liquor to be 1: 100;

step S2, adding the pretreated cellulose and ethylene oxide into a three-neck flask, heating in a water bath at 60 ℃, stirring at a constant speed and reacting for 1h, heating to 70 ℃ after the reaction is finished, stirring at a constant speed and reacting for 1h, dropwise adding glacial acetic acid to adjust the pH value until the pH value is 5 after the reaction is finished, then adding glyoxal, stirring at a constant speed and reacting for 30min, performing suction filtration after the reaction is finished, washing the crude product obtained after the suction filtration with 75% acetone aqueous solution by volume fraction for three times, 15min each time, and drying to obtain the treated cellulose, wherein the dosage ratio of the pretreated cellulose to the ethylene oxide is 5 g: 20mL, and the dosage of the glyoxal is 10% of the weight of the pretreated cellulose;

step S3, adding 2, 4-toluene diisocyanate and 1, 4-dioxane into a three-neck flask, introducing nitrogen, placing the three-neck flask into an ice water bath for cooling for 30min, adding hydroxyethyl acrylate and dibutyltin dilaurate, stirring at a constant speed and reacting for 1h, then heating to 30 ℃, continuing stirring and reacting for 3h, and refining after the reaction is finished to obtain a modifier, wherein the weight ratio of the 2, 4-toluene diisocyanate to the 1, 4-dioxane to the hydroxyethyl acrylate to the dibutyltin dilaurate is controlled to be 1: 10: 1: 0.1;

step S4, adding the modifier and the treated cellulose into N, N-dimethylformamide, adding dibutyltin dilaurate, stirring at a constant speed at 30 ℃ and reacting for 1h to obtain a product A, adding the product A and N-isopropyl acrylamide into N, N-dimethylformamide, then deionized water is added until a solution with 10 percent of solid content is formed, potassium peroxodisulfate is added, oxygen is removed by bubbling, reacting for 2h at 60 ℃, then soaking in deionized water for a week, and drying in vacuum at 80 ℃ for 70h to obtain a gel material, wherein the weight ratio of the modifier to the treated cellulose to the dibutyltin dilaurate to the N, N-dimethylformamide is 1: 0.1: 10, and the weight ratio of the product A, N-isopropylacrylamide to the potassium peroxodisulfate to the N, N-dimethylformamide is 1: 0.5: 0.05: 5.

Example 4

The high-hydrophilicity plant fiber cat litter comprises the following raw materials in parts by weight: 150 parts of corn straw fiber, 30 parts of gel material, 20 parts of bean fiber, 15 parts of edible gelatin, 30 parts of bentonite and 30 parts of zeolite powder;

the high-hydrophilicity plant fiber cat litter is prepared by the following method:

firstly, adding plant fiber, bean fiber, edible gelatin and bentonite into a sealed container, and uniformly stirring for 10min at a rotating speed of 100r/min to obtain a component I;

secondly, feeding the gel material and the zeolite powder into a mixer, mixing for 1min, taking out, and screening to obtain a second component;

and thirdly, directly feeding the prepared components into a granulator through conveying equipment, adding the component II, granulating, and sterilizing the prepared granules at a low temperature for 3min through tunnel type microwave sterilization equipment, wherein the sterilization temperature is set at 50 ℃ to prepare the high-hydrophilicity plant fiber cat litter.

The gel material is prepared by the following method:

step S1, uniformly mixing urea and 15% by mass of sodium hydroxide solution according to the weight ratio of 4: 6 to prepare mixed alkali liquor, adding cellulose into the mixed alkali liquor, stirring at a constant speed of 150r/min and reacting for 2 hours, taking out and removing the mixed alkali liquor after the reaction is finished to prepare pretreated cellulose, and controlling the weight ratio of the cellulose to the mixed alkali liquor to be 1: 100;

step S2, adding the pretreated cellulose and ethylene oxide into a three-neck flask, heating in a water bath at 60 ℃, stirring at a constant speed and reacting for 1h, heating to 70 ℃ after the reaction is finished, stirring at a constant speed and reacting for 1h, dropwise adding glacial acetic acid to adjust the pH value until the pH value is 5 after the reaction is finished, then adding glyoxal, stirring at a constant speed and reacting for 30min, performing suction filtration after the reaction is finished, washing the crude product obtained after the suction filtration with 75% acetone aqueous solution by volume fraction for three times, 15min each time, and drying to obtain the treated cellulose, wherein the dosage ratio of the pretreated cellulose to the ethylene oxide is 5 g: 20mL, and the dosage of the glyoxal is 10% of the weight of the pretreated cellulose;

step S3, adding 2, 4-toluene diisocyanate and 1, 4-dioxane into a three-neck flask, introducing nitrogen, placing the three-neck flask into an ice water bath for cooling for 30min, adding hydroxyethyl acrylate and dibutyltin dilaurate, stirring at a constant speed and reacting for 1h, then heating to 30 ℃, continuing stirring and reacting for 3h, and refining after the reaction is finished to obtain a modifier, wherein the weight ratio of the 2, 4-toluene diisocyanate to the 1, 4-dioxane to the hydroxyethyl acrylate to the dibutyltin dilaurate is controlled to be 1: 10: 1: 0.1;

step S4, adding the modifier and the treated cellulose into N, N-dimethylformamide, adding dibutyltin dilaurate, stirring at a constant speed at 30 ℃ and reacting for 1h to obtain a product A, adding the product A and N-isopropyl acrylamide into N, N-dimethylformamide, then deionized water is added until a solution with 10 percent of solid content is formed, potassium peroxodisulfate is added, oxygen is removed by bubbling, reacting for 2h at 60 ℃, then soaking in deionized water for a week, and drying in vacuum at 80 ℃ for 70h to obtain a gel material, wherein the weight ratio of the modifier to the treated cellulose to the dibutyltin dilaurate to the N, N-dimethylformamide is 1: 0.1: 10, and the weight ratio of the product A, N-isopropylacrylamide to the potassium peroxodisulfate to the N, N-dimethylformamide is 1: 0.5: 0.05: 5.

Comparative example 1

This comparative example compares to example 1 without the addition of a gel material.

Comparative example 2

This comparative example is a TOM CAT litter in the market.

The water absorption, caking and deodorization times of examples 1-4 and comparative examples 1-2 were measured according to the performance test standards for plant cat litter and the results are shown in the following table;

deodorization test: place 250g of litter on a flat surface or in a container, pour five milliliters of 0.1% ammonia solution onto the litter, when the engineer finds the odor is faint he needs to get close to the litter and re-evaluate the odor, with the litter being 10cm away from the engineer's nose and the odor being evaluated every 5 minutes until the ammonia odor is no longer detected.

	Water absorption%	Time of agglomeration s	Deodorization time min
				Example 1	315	1.2	5
Example 2	320	1.2	5
				Example 3	320	1.1	5
Example 4	320	1.2	5
				Comparative example 1	158	2.5	15
Comparative example 2	210	2.2	10

From the above table, it can be seen that the water absorption of examples 1-4 is 315-; the comparative examples 1-2 had a water absorption of 158-210%, a caking time of 2.2-2.5s and a deodorization time of 10-15 min.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is illustrative and explanatory only and is not intended to be exhaustive or to limit the invention to the precise embodiments described, and various modifications, additions, and substitutions may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the claims.

Claims (5)

1. The high-hydrophilicity plant fiber cat litter is characterized by comprising the following raw materials in parts by weight: 50-150 parts of plant fiber, 20-30 parts of gel material, 10-20 parts of bean fiber, 10-15 parts of edible gelatin, 10-30 parts of bentonite and 10-30 parts of zeolite powder;

the high-hydrophilicity plant fiber cat litter is prepared by the following method:

firstly, adding plant fiber, bean fiber, edible gelatin and bentonite into a sealed container, and uniformly stirring for 10min at a rotating speed of 100-;

secondly, feeding the gel material and the zeolite powder into a mixer, mixing for 1-2min, taking out, and screening to obtain a second component;

and thirdly, directly feeding the prepared components into a granulator through conveying equipment, adding the component II, granulating, and sterilizing the prepared granules at low temperature for 3-5min through tunnel type microwave sterilization equipment, wherein the sterilization temperature is set at 50-70 ℃ to prepare the high-hydrophilicity plant fiber cat litter.

2. The cat litter with high hydrophilicity as claimed in claim 1, wherein the plant fiber is one or more of wood flour, rice straw, corn straw, wheat straw, peanut shell, corn cob, rice hull, walnut shell and coconut shell.

3. The high hydrophilic plant fiber cat litter according to claim 1, wherein said gel material is prepared by the following method:

step S1, uniformly mixing urea and 15% by mass of sodium hydroxide solution according to the weight ratio of 4: 6 to prepare mixed alkali liquor, adding cellulose into the mixed alkali liquor, uniformly stirring at the rotating speed of 150 plus 200r/min and reacting for 2 hours, taking out and removing the mixed alkali liquor after the reaction is finished to prepare pretreated cellulose, and controlling the weight ratio of the cellulose to the mixed alkali liquor to be 1-1.5: 100;

step S2, adding the pretreated cellulose and ethylene oxide into a three-neck flask, heating in a water bath at 45-60 ℃, stirring at a constant speed and reacting for 1h, heating to 70-80 ℃ after the reaction is finished, stirring at a constant speed and reacting for 1h, dripping glacial acetic acid to adjust the pH value after the reaction is finished until the pH value is 5-6, then adding glyoxal, stirring at a constant speed and reacting for 30min, performing suction filtration after the reaction is finished, washing the crude product obtained after the suction filtration with 75% acetone aqueous solution by volume fraction for three times, 15min each time, and drying to obtain the treated cellulose, wherein the dosage ratio of the pretreated cellulose to the ethylene oxide is 5 g: 20mL, and the dosage of the glyoxal is 10% of the weight of the pretreated cellulose;

step S3, adding 2, 4-toluene diisocyanate and 1, 4-dioxane into a three-neck flask, introducing nitrogen, placing the three-neck flask into an ice water bath for cooling for 30min, adding hydroxyethyl acrylate and dibutyltin dilaurate, stirring at a constant speed and reacting for 1h, then heating to 15-30 ℃, continuing stirring and reacting for 3h, and refining after the reaction is finished to prepare a modifier, wherein the weight ratio of the 2, 4-toluene diisocyanate to the 1, 4-dioxane to the hydroxyethyl acrylate to the dibutyltin dilaurate is controlled to be 1: 10: 1: 0.1-0.2;

step S4, adding a modifier and the treated cellulose into N, N-dimethylformamide, adding dibutyltin dilaurate, stirring at a constant speed at 30-35 ℃ and reacting for 1h to obtain a product A, adding the product A and N-isopropylacrylamide into the N, N-dimethylformamide, then adding deionized water until a solution with a solid content of 10% is formed, adding potassium persulfate, carrying out bubbling for deoxygenation, reacting for 2h at 60 ℃, then soaking in the deionized water for one week, and carrying out vacuum drying for 70h at 72-80 ℃ to obtain the gel material.

4. The highly hydrophilic vegetable fiber cat litter of claim 3 wherein the weight ratio of the modifying agent, the treated cellulose, dibutyltin dilaurate and N, N-dimethylformamide in step S4 is from 1: 0.1 to 0.2: 10 and the weight ratio of the product A, N-isopropylacrylamide, potassium peroxodisulfate and N, N-dimethylformamide is from 1: 0.5 to 0.8: 0.05 to 0.08: 5 to 10.

5. The preparation process of the highly hydrophilic plant fiber cat litter according to claim 1, comprising the following steps:

firstly, adding plant fiber, bean fiber, edible gelatin and bentonite into a sealed container, and uniformly stirring for 10min at a rotating speed of 100-;

secondly, feeding the gel material and the zeolite powder into a mixer, mixing for 1-2min, taking out, and screening to obtain a second component;

and thirdly, directly feeding the prepared components into a granulator through conveying equipment, adding the component II, granulating, and sterilizing the prepared granules at low temperature for 3-5min through tunnel type microwave sterilization equipment, wherein the sterilization temperature is set at 50-70 ℃ to prepare the high-hydrophilicity plant fiber cat litter.