阅读说明：本技术 一种具有降解功能的高吸水性易结团猫砂及其制备方法 (High-water-absorptivity easily-agglomerated cat litter with degradation function and preparation method thereof ) 是由 胡坤宏 周娜娜 石永杰 秦广超 胡恩柱 于 2019-10-28 设计创作，主要内容包括：一种具有降解功能的高吸水性易结团猫砂及其制备方法,涉及环境材料与宠物用品技术领域。该猫砂由钠基膨润土100～450份、锂基膨润土50～400份、碳酸氢钠10～50份、纳米二氧化钛10～50份、羟丙基甲基纤维素60～100份、活性炭10～50份和水150～250份组成。本发明制备的具有降解功能的高吸水性易结团膨润土猫砂,原料合理复配使用,有利于有效地提高猫砂的吸水结团和臭味降解去除性能。此外,猫砂通过造粒成型的方式可减少在使用过程中的粉尘污染,而且制备方法简单。本发明不仅制备方法简单,而且制备的猫砂具有吸水性强、除味能力强和结团性好等特点。(A high-hydroscopicity easy-caking cat litter with a degradation function and a preparation method thereof relate to the technical field of environmental materials and pet products. The cat litter is composed of 100-450 parts of sodium bentonite, 50-400 parts of lithium bentonite, 10-50 parts of sodium bicarbonate, 10-50 parts of nano titanium dioxide, 60-100 parts of hydroxypropyl methyl cellulose, 10-50 parts of activated carbon and 150-250 parts of water. The high-water-absorption easy-caking bentonite cat litter with the degradation function, which is prepared by the invention, is prepared from reasonable raw materials in a compounding manner, and is beneficial to effectively improving the water absorption caking and odor degradation removal performance of the cat litter. In addition, the cat litter can reduce dust pollution in the using process by means of granulation and molding, and the preparation method is simple. The preparation method is simple, and the prepared cat litter has the characteristics of strong water absorption, strong odor removal capability, good caking property and the like.)

1. The high-water-absorptivity easy-caking cat litter with the degradation function mainly comprises bentonite, and is characterized by specifically comprising the following raw materials in parts by weight:

100-450 parts of sodium bentonite, 50-400 parts of lithium bentonite, 10-50 parts of sodium bicarbonate, 10-50 parts of nano titanium dioxide, 60-100 parts of hydroxypropyl methyl cellulose, 10-50 parts of activated carbon and 150-250 parts of water.

2. The litter of claim 1 wherein the litter is formed into granular products having a diameter of 1mm to 3 mm.

3. A method of making the litter of claim 1 comprising the steps of:

(1) mixing materials: weighing the raw materials according to the proportion, and fully stirring to uniformly mix the raw materials until the raw materials are in a wet state of 'being held by hand to form a mass and being scattered by light pressure';

(2) and (3) granulation: putting the mixed materials into a granulator for granulation;

(3) and (3) drying: drying the granules obtained by granulation;

(4) screening: and cooling the dried particles, and screening by a sample sieve to remove particles with unqualified particle sizes, thereby obtaining the high-hydroscopicity easy-caking cat litter with a degradation function.

4. The method of claim 3, wherein in the step (1), sodium bentonite powder and lithium bentonite powder are uniformly mixed, and then nano titanium dioxide, hydroxypropyl methylcellulose and activated carbon are respectively added into the uniformly mixed bentonite powder and are fully stirred; then adding water into sodium bicarbonate, and fully stirring to completely dissolve sodium bicarbonate powder; finally, adding the sodium bicarbonate solution into the mixed bentonite powder, and fully stirring to ensure that the bentonite powder is in a wet state of 'conglobation by hand and dispersion by light pressure'.

5. The method of claim 3, wherein the size of the granules is controlled to be 1mm to 3mm in step (2).

6. The method according to claim 3, wherein the granules obtained by granulation in step (3) are dried in an electric constant temperature forced air drying oven at 120-250 ℃ for 1-3 hours.

7. The method of claim 3, wherein the step (4) screens the granular product with a retention size of 1mm to 3 mm.

Technical Field

The invention relates to the technical field of environmental materials and pet products, in particular to high-water-absorptivity easy-caking cat litter with a degradation function and a preparation method thereof.

Background

Cats, one of the animals enjoyed by people, have begun to become pets in many households in today's society. In the process of feeding pet cats, the pollution problem caused by excrement of the pet cats is more remarkable. On one hand, the excrement is not beneficial to the cleanness and sanitation of families, on the other hand, the excrement has heavy odor due to the fact that uric acid contained in excrement and urine per se has heavy peculiar smell, and components such as urea in the urine are easily decomposed under the action of bacteria to generate ammonia, so that the excrement has heavy odor which can seriously pollute the indoor environment and influence the healthy life of people.

The cat litter is a pet article used for burying excrement and urine, can quickly absorb moisture in the excrement and urine, swell and agglomerate, and is regularly cleaned by a feces shoveling function. The use of the cat litter is beneficial to the healthy growth of domestic pets and the protection of the domestic environment. The most commonly used cat litter in the market is mainly bentonite cat litter, the adopted bentonite is calcium-based sodium bentonite, the bentonite has certain water absorption property, can absorb and agglomerate moisture in excrement and urine, but basically covers the taste of excrement by adding a flavoring agent, and can not well remove the peculiar smell of the excrement.

Therefore, how to better solve the problem of water absorption and deodorization of the cat litter in the using process is very important.

Disclosure of Invention

The invention provides high-water-absorptivity easy-caking bentonite cat litter with a degradation function and a preparation method thereof, aiming at the problems of poor water absorption performance and poor odor removal of the existing cat litter. The preparation method is simple, and the prepared cat litter has the characteristics of eliminating degradation smell, strong water absorption and good caking property.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows: the high-water-absorptivity easy-caking cat litter with the degradation function mainly comprises bentonite, and specifically comprises the following raw materials in parts by weight:

100-450 parts of sodium bentonite, 50-400 parts of lithium bentonite, 10-50 parts of sodium bicarbonate, 10-50 parts of nano titanium dioxide, 60-100 parts of hydroxypropyl methyl cellulose, 10-50 parts of activated carbon and 150-250 parts of water.

As a preferred technical scheme, the cat litter is made into a granular product with the diameter of 1 mm-3 mm.

A preparation method of high-water-absorptivity easily-agglomerated cat litter with a degradation function comprises the following specific steps:

(1) mixing materials: weighing the raw materials according to the proportion, and fully stirring to uniformly mix the raw materials until the raw materials are in a wet state of 'being held by hand to form a mass and being scattered by light pressure';

(2) and (3) granulation: putting the mixed materials into a granulator for granulation;

(3) and (3) drying: drying the granules obtained by granulation;

(4) screening: and cooling the dried particles, and screening by a sample sieve to remove particles with unqualified particle sizes, thereby obtaining the high-hydroscopicity easy-caking cat litter with a degradation function.

The preferable technical proposal of the preparation method is as follows:

uniformly mixing sodium bentonite powder and lithium bentonite powder in the step (1), respectively adding nano titanium dioxide, hydroxypropyl methylcellulose and activated carbon into the uniformly mixed bentonite powder, and fully stirring; then adding water into sodium bicarbonate, and fully stirring to completely dissolve sodium bicarbonate powder; finally, adding the sodium bicarbonate solution into the mixed bentonite powder, and fully stirring to ensure that the bentonite powder is in a wet state of 'conglobation by hand and dispersion by light pressure'.

And (3) controlling the size of the granules to be 1-3 mm in the step (2).

And (3) putting the granules obtained by granulation into an electric heating constant-temperature air blast drying oven to dry for 1-3 h at 120-250 ℃.

And (4) screening and reserving granular products with the size of 1-3 mm.

In view of the defects of cat litter made of traditional calcium-based sodium bentonite, the cat litter has the characteristics of no degradation odor, strong water absorption and good caking property by reasonably designing the components of the cat litter.

In the high-water-absorption easy-caking bentonite cat litter component with the degradation function, sodium bentonite and lithium bentonite have good adsorption performance without environmental pollution, and the caking property and the expansibility after the components meet water make the cat litter caking performance good. The two are compounded for use, and are nontoxic and harmless. The sodium bentonite has good water absorption, and the lithium bentonite is added on the basis of the good water absorption, so that the water absorption performance of the cat litter can be better improved due to the extremely high water absorption and expansibility of the lithium bentonite, and the cat litter has good cohesiveness after absorbing water, so that the caking property of the cat litter can be obviously improved.

The hydroxypropyl methyl cellulose has large surface area and porosity, good hygroscopicity and water absorption, and the water absorption and caking property of the cat litter can be further improved after the hydroxypropyl methyl cellulose is added. The added sodium bicarbonate generates carbon dioxide gas due to drying and thermal decomposition so as to loosen particles, and the water absorption speed and the water absorption capacity of the cat litter can be increased by matching with the addition of the lithium bentonite with high expansibility.

The active carbon has strong adsorption performance, and can adsorb organic matters in pet excrement so as to absorb the peculiar smell of the pet excrement. But the activated carbon is easy to be in a saturated adsorption state or desorption action after adsorption, so that the peculiar smell of the pet excrement is aggravated. The nano titanium dioxide can slowly degrade organic matters in a catalytic oxidation mode, so that the adsorption effect of the activated carbon can ensure that the organic matters have enough time to be degraded by the nano titanium dioxide by the composite use of the activated carbon and the nano titanium dioxide, thereby reducing the generation of peculiar smell of excrement. Therefore, the technical problem that the odor of excrement needs to be covered by adding a flavoring agent in the conventional cat litter is thoroughly solved.

Therefore, compared with the prior art, the invention also has the beneficial effects that:

the high-water-absorption easy-caking bentonite cat litter with the degradation function, which is prepared by the invention, is prepared from reasonable raw materials in a compounding manner, and is beneficial to effectively improving the water absorption caking and odor degradation removal performance of the cat litter. In addition, the cat litter can reduce dust pollution in the using process by means of granulation and molding, and the preparation method is simple. The preparation method is simple, and the prepared cat litter has the characteristics of strong water absorption, strong odor removal capability, good caking property and the like.

Detailed Description

The following examples are provided to further describe the super absorbent and easy-to-agglomerate cat litter with degradation function and the preparation method thereof.