Slow-release cleaning agent for intelligent machine

Abstract

The invention discloses a slow-release cleaning agent for an intelligent machine, which comprises the following raw materials in percentage by weight: 20-50% of sulfonate surfactant, 5-35% of adhesive, 5-25% of organic bactericide, 1-5% of inorganic bactericide, 1-5% of deodorant, 1-5% of stabilizer, 0.1-1% of essence and the balance of deionized water. By compounding the organic / inorganic double-effect sterilization system and the slow-release adhesive, microorganism breeding can be inhibited for a long time, and peculiar smell in the intelligent equipment can be reduced; and the organic silicon stabilizer is utilized to optimize the compatibility of the system, so that the stability of the active component in a complex temperature and humidity environment is ensured. The product is suitable for equipment with built-in cleaning modules such as sweeping robots and intelligent closestools, the cleaning period can be prolonged by 60% or above, and no foreign matter is left.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of cleaning agents, and particularly relates to a slow-release cleaning agent for intelligent machines. BACKGROUND

[0002] Existing intelligent cleaning equipment (such as self-cleaning sweeping robots and intelligent toilets with spraying modules) mostly use liquid cleaning agents, which have problems such as low utilization rate of active ingredients, easy breeding of bacteria in residual liquid, and the need for frequent liquid replenishment.

[0003] Therefore, in view of the above technical problems, it is necessary to provide a slow-release cleaning agent for intelligent machines.

[0004] The information disclosed in this BACKGROUND section is only for the purpose of increasing the understanding of the background of the present application and should not be regarded as an acknowledgment or any form of suggestion that this information forms prior art that is publicly known. SUMMARY

[0005] The present application aims to provide a slow-release cleaning agent for intelligent machines.

[0006] In order to achieve the above-mentioned purpose, the technical scheme provided by an embodiment of the present application is as follows:

[0007] The slow-release cleaning agent for intelligent machines has the following raw material composition, wt%:

[0008] Sulfonate surfactant 20-50%

[0009] Binder 5-35%

[0010] Organic bactericide 5-25%

[0011] Inorganic bactericide 1-5%

[0012] Deodorant 1-5%

[0013] Stabilizer 1-5%

[0014] Essence 0.1-1%

[0015] Deionized water in excess.

[0016] In one or more embodiments of the present application, the sulfonate surfactant is selected from: sodium alpha-olefin sulfonate, sodium dodecyl sulfate, and sodium dodecyl benzene sulfonate.

[0017] In one or more embodiments of the present application, the binder is selected from: polyvinyl alcohol, polyvinylpyrrolidone, sodium carboxymethyl cellulose, and gum arabic.

[0018] In one or more embodiments of the present application, the organic bactericide is selected from the group consisting of parachlorometaxylenol, iodopropynyl butylcarbamate, benzisothiazolinone, triclosan.

[0019] In one or more embodiments of the present application, the inorganic bactericide is an inorganic nanomaterial selected from the group consisting of zinc oxide, silver oxide. Preferably, the zinc oxide and silver oxide are both nanoscale materials, and the average particle size is 150-350 nm.

[0020] In one or more embodiments of the present application, the deodorant is selected from the group consisting of zinc ricinoleate, persimmon tannin, probiotic bacteria.

[0021] In one or more embodiments of the present application, the stabilizer is selected from the group consisting of dimethylsiloxane, modified silicone oil, modified silicone resin.

[0022] In one or more embodiments of the present application, the binder is a compound of polyvinyl alcohol and sodium carboxymethyl cellulose with a mass ratio of 2:1-1:2, at which time a gradient swelling gel layer is formed.

[0023] In one or more embodiments of the present application, the weight ratio of the organic bactericide to the inorganic bactericide is 3:1-5:1.

[0024] In one or more embodiments of the present application, the stabilizer includes a polydimethylsiloxane with an epoxy-modified silicone oil composite with a weight average molecular weight of 5000-8000.

[0025] Compared with the prior art, the slow-release cleaning agent for intelligent machines of the present application has a gradient slow-release system: a pH(6-9) responsive gel layer is formed by compounding polyvinyl alcohol(PVA) and sodium carboxymethyl cellulose(CMC-Na), which gradually dissolves and releases active substances when the humidity is >60%; a synergistic bactericidal network: parachlorometaxylenol(PCMX) destroys microbial cell membranes, and nano-zinc oxide generates reactive oxygen species(ROS) under light to improve bactericidal efficiency; a nano-coating technology: modified silicone resin is used to embed probiotic spores, avoiding direct contact with bactericides and inactivation, achieving deodorization and efficiency enhancement, the stability is >6 months at pH=7.8 and 25℃, and the slow-release period is 14 days(counted by surfactant concentration decay to 50%). DETAILED DESCRIPTION

[0026] In order for those skilled in the art to better understand the technical solutions in the present application, the technical solutions of the present application will be described clearly and completely below in combination with the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should fall within the scope of protection of the present application.

[0027] The fragrances can be conventional commercially available fragrances that meet the requirements of the cleaning agent application, such as jasmine fragrance, tuberose fragrance, lily of the valley fragrance, magnolia fragrance, clove fragrance, and the like, including but not limited to the following examples.

[0028] The preparation of the slow-release cleaning agent includes, but is not limited to, the following examples: the adhesive is pre-dissolved and then added to the surfactant, stirred at 50°C for 2 hours, and then the remaining components are added and homogenized.

[0029] Example 1

[0030] The slow-release cleaning agent for intelligent machines of the present embodiment includes, by weight: 35% sodium alpha-olefin sulfonate; 18% polyvinyl alcohol; 10% p-chloro-m-dimethylphenol; 3% zinc oxide (average particle size 150 nm); 2% zinc ricinoleate; 4% dimethyl silicone; 0.5% jasmine fragrance; and deionized water in the remainder.

[0031] Example 2

[0032] The slow-release cleaning agent for intelligent machines of the present embodiment includes, by weight: 20% sodium alpha-olefin sulfonate; 35% polyvinyl alcohol; 5% p-chloro-m-dimethylphenol; 1% zinc oxide (average particle size 250 nm); 1% zinc ricinoleate; 1% dimethyl silicone; 0.1% jasmine fragrance; and deionized water in the remainder.

[0033] Example 3

[0034] The slow-release cleaning agent for intelligent machines of the present embodiment includes, by weight: 50% sodium alpha-olefin sulfonate; 5% polyvinyl alcohol; 25% p-chloro-m-dimethylphenol; 5% zinc oxide (average particle size 350 nm); 5% zinc ricinoleate; 5% dimethyl silicone; 1% jasmine fragrance; and deionized water in the remainder.

[0035] Example 4

[0036] The slow-release cleaning agent for intelligent machines of the present embodiment includes, by weight: 35% sodium alpha-olefin sulfonate; 18% sodium carboxymethyl cellulose; 10% triclosan; 3% silver oxide (average particle size 150 nm); 2% zinc ricinoleate; 4% dimethyl silicone; 0.5% fragrance; and deionized water in the remainder.

[0037] Example 5

[0038] The raw material composition of the slow-release cleaning agent for intelligent machines of the embodiment includes, wt%: sodium alpha-olefin sulfonate 35%; polyvinylpyrrolidone 18%; benzisothiazolinone 5%, triclosan 5%; zinc oxide (average particle size 150 nm) 1%, silver oxide (average particle size 150 nm) 2%; probiotics 2%; dimethyl silicone 4%; essence 0.5%; and deionized water in the remainder.

[0039] Example 6:

[0040] The raw material composition of the slow-release cleaning agent for intelligent machines of the embodiment includes, wt%: sodium alpha-olefin sulfonate 35%; polyvinylpyrrolidone 18%; benzisothiazolinone 5%, triclosan 5%; zinc oxide (average particle size 150 nm) 1%, silver oxide (average particle size 150 nm) 2%; probiotics 2%; dimethyl silicone 4%; essence 0.5%; and deionized water in the remainder.

[0041] The slow-release control verification is tested according to the test methods of GBT 5173-2018 and GBT27947-2020, and the formulation of the embodiment is used to carry out a 12-week accelerated experiment at a temperature of 40°C and a tap water tank (completely replaced every 1 hour).

[0042]

[0043] The data show that the PVA / CMC-Na composite gel system presents a gradual swelling property under humidity triggering, which is consistent with the pH response mechanism.

[0044] The synergistic bactericidal verification is tested according to the WS_T650-2019 standard.

[0045]

[0046] Compared with conventional cleaning agents (the killing rate decays to less than 82% after 7 days), the product of the embodiment presents continuous antibacterial action through an organic / inorganic bactericidal system.

[0047] After 20 times of temperature impact (-10°C to 60°C), the product has no cracking and breaking phenomenon.

[0048] Example 7:

[0049] The slow-release cleaning agent for intelligent machines of the present embodiment comprises, by weight: 35% of sodium alpha-olefin sulfonate, 18% of polyvinyl alcohol PVA / carboxymethyl cellulose sodium CMC-Na (mass ratio 2:1), 10% of p-chloro-m-cresol PCMX, 3% of nano zinc oxide (average particle size 150 nm), 2% of zinc ricinoleate, 4% of dimethyl silicone-epoxy silicone oil (mass ratio 3:1), 0.5% of essence, and the balance is deionized water.

[0050] Example 8:

[0051] The slow-release cleaning agent for intelligent machines of the present embodiment comprises, by weight: 35% of sodium alpha-olefin sulfonate, 18% of polyvinyl alcohol PVA / carboxymethyl cellulose sodium CMC-Na (mass ratio 1:2), 10% of p-chloro-m-cresol PCMX, 3% of nano zinc oxide (average particle size 150 nm), 2% of zinc ricinoleate, 4% of dimethyl silicone-epoxy silicone oil (mass ratio 3:1), 0.5% of essence, and the balance is deionized water.

[0052] Example 9:

[0053] The slow-release cleaning agent for intelligent machines of the present embodiment comprises, by weight: 35% of sodium alpha-olefin sulfonate, 18% of polyvinyl alcohol PVA / carboxymethyl cellulose sodium CMC-Na (mass ratio 1:1), 10% of p-chloro-m-cresol PCMX, 3% of nano zinc oxide (average particle size 150 nm), 2% of zinc ricinoleate, 4% of dimethyl silicone-epoxy silicone oil (mass ratio 4:1), 0.5% of essence, and the balance is deionized water.

[0054] Example 10:

[0055] The slow-release cleaning agent for intelligent machines of the present embodiment comprises, by weight: 35% of sodium alpha-olefin sulfonate, 18% of polyvinyl alcohol PVA / carboxymethyl cellulose sodium CMC-Na (mass ratio 1:1), 10% of p-chloro-m-cresol PCMX, 3% of nano zinc oxide (average particle size 150 nm), 2% of zinc ricinoleate, 4% of dimethyl silicone-epoxy silicone oil (mass ratio 5:1), 0.5% of essence, and the balance is deionized water.

[0056] Example 11:

[0057] The slow-release cleaning agent for intelligent machines of the present embodiment has a raw material composition including, by weight: sodium alpha-olefin sulfonate 35%, polyvinyl alcohol PVA / carboxymethyl cellulose sodium CMC-Na (mass ratio 1:1) 18%, p-chloro-m-cresol PCMX 9%, nano zinc oxide (average particle size 150 nm) 3%, zinc castor oil acid 2%, dimethyl silicone-epoxy silicone oil (mass ratio 3:1) 4%, essence 0.5%, and the balance being deionized water.

[0058] Example 12

[0059] The slow-release cleaning agent for intelligent machines of the present embodiment has a raw material composition including, by weight: sodium alpha-olefin sulfonate 35%, polyvinyl alcohol PVA / carboxymethyl cellulose sodium CMC-Na (mass ratio 1:1) 18%, p-chloro-m-cresol PCMX 9%, nano zinc oxide (average particle size 150 nm) 3%, zinc castor oil acid 2%, dimethyl silicone-epoxy silicone oil (mass ratio 3:1) 4%, essence 0.5%, and the balance being deionized water.

[0060] Comparative Example 1

[0061] The only difference between the present comparative example and Example 6 is that the average particle size of the nano zinc oxide is 100 nm.

[0062] Comparative Example 2

[0063] The only difference between the present comparative example and Example 6 is that the average particle size of the nano zinc oxide is 400 nm.

[0064] Comparative Example 3

[0065] The only difference between the present comparative example and Example 6 is that:

[0066] polyvinyl alcohol PVA / carboxymethyl cellulose sodium CMC-Na (mass ratio 1:3) 18%.

[0067] Comparative Example 4

[0068] The only difference between the present comparative example and Example 6 is that:

[0069] polyvinyl alcohol PVA / carboxymethyl cellulose sodium CMC-Na (mass ratio 5:2) 18%.

[0070] Comparative Example 5

[0071] The only difference between the present comparative example and Example 6 is that:

[0072] p-chloro-m-cresol PCMX 10%, nano silver oxide (average particle size 150 nm) 3%.

[0073] Comparative Example 6

[0074] The difference between the present comparative example and Example 6 is only that:

[0075] p-chloro-m-xylenol PCMX 10%, nano zinc oxide (average particle size 200 nm) 3%.

[0076] Table 1 Antimicrobial rate (WS_T650-2019)

[0077]

[0078] From the test results of Examples 1-5 above, it can be seen that the slow-release cleaner of the present application has a high bacteriostatic rate at the beginning, and can still maintain a high bacteriostatic effect after 7 days. This proves that the cleaner of the present application has excellent antibacterial performance and slow-release performance. At the same time, by comparing the test results of different examples and comparative examples, the composition and ratio of raw materials can be further optimized to obtain the best antibacterial and slow-release effect.

[0079] From Examples 6-12 above, it can be seen that the slow-release cleaner of the present application has excellent bacteriostatic effect and maintains stable bacteriostatic rate for a long time. In the comparative examples, by changing the particle size of nano zinc oxide, the mass ratio of polyvinyl alcohol PVA / carboxymethyl cellulose sodium CMC-Na, and the content of p-chloro-m-xylenol PCMX, etc., all will affect the bacteriostatic effect of the cleaner. Specifically, when the average particle size of nano zinc oxide is 150 nm, the bacteriostatic effect of the cleaner is best; the mass ratio of polyvinyl alcohol PVA / carboxymethyl cellulose sodium CMC-Na has an important influence on the stability of the cleaner; and the content of p-chloro-m-xylenol PCMX directly affects the bacteriostatic capacity of the cleaner. Therefore, by reasonably adjusting the composition and content of each raw material, a slow-release cleaner with excellent bacteriostatic effect and stability can be prepared.

[0080] Application verification

[0081] Actual measurement of household toilet: one solid cleaner (18 grams) is put into the water tank of the toilet of a family of three, and the bactericidal effect is detected regularly (at least 30 minutes after the last toilet flushing time).

[0082]

[0083] From the data in Table 1, the cleaning agent of Examples 1-12 has a high inhibition rate for both E. coli and S. aureus at 0 hours and 7 days after, showing good antibacterial performance. In Comparative Examples 1-6, due to the change of formula or ingredient, the antibacterial performance is relatively decreased. Among them, the average particle size of nano zinc oxide in Comparative Example 1 and Comparative Example 2 deviates from the optimal range, resulting in a significant decrease in antibacterial performance; the mass ratio of polyvinyl alcohol PVA / carboxymethyl cellulose sodium CMC-Na in Comparative Example 3 and Comparative Example 4 is not suitable, which also affects the antibacterial effect of the cleaning agent; the nano zinc oxide is replaced by nano silver oxide in Comparative Example 5, and the average particle size of nano zinc oxide is changed in Comparative Example 6, which all lead to the change of antibacterial performance. Therefore, the slow-release cleaning agent for intelligent machines has excellent antibacterial performance and stability, and is suitable for cleaning and maintenance of intelligent machines and other equipment.

[0084] The synergistic bactericidal network realizes persistent and broad-spectrum sterilization through a triple action mechanism: 1) the organic component (such as PCMX) is adsorbed on the microbial cell membrane through the hydrophobic group, penetrates the phospholipid bilayer to cause intracellular substance leakage; 2) the inorganic nano material (such as ZnO) generates hydroxyl radicals (·OH), superoxide anions (O 2- ) and other active oxygen species under the activation of water molecules, which destroys the cross-linking structure of bacterial proteins. The FTIR and SEM microcharacterization verification shows that the organic / inorganic synergistic system can shorten the morphological destruction time of the bacteria to 90 seconds within 3-5 minutes of the conventional preparation, and can continuously release the effective components for more than 14 days, meeting the long-term application requirements of devices such as flush toilets and robotic sweepers.

[0085] It will be obvious to a person skilled in the art that, without departing from the spirit or essential characteristics of the application, the present application can be implemented in other specific forms. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the description given above, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

[0086] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. A slow-release cleaning agent for intelligent machines, comprising, wt%: 20-50% sulfonate surfactant Adhesive 5-35% Organic fungicides 5-25% Inorganic bactericide 1-5% Odor remover 1-5% stabilizer 1-5% Fragrance 0.1-1% Deionized water balance.

2. The slow-release cleaning agent for intelligent machines according to claim 1, characterized in that, The sulfonate surfactant is selected from: sodium α-olefin sulfonate, sodium dodecyl sulfate, and sodium dodecylbenzene sulfonate.

3. The slow-release cleaning agent for intelligent machines according to claim 1, characterized in that, The adhesive is selected from: polyvinyl alcohol, polyvinylpyrrolidone, sodium carboxymethyl cellulose, and gum arabic.

4. The slow-release cleaning agent for intelligent machines according to claim 1, characterized in that, The organic bactericide is selected from: p-chloro-m-xylenol, iodopropynylcarbamate, benzisothiazolinone, and triclosan.

5. The slow-release cleaning agent for intelligent machines according to claim 1, characterized in that, The inorganic bactericide is an inorganic nanomaterial selected from zinc oxide and silver oxide.

6. The slow-release cleaning agent for intelligent machines according to claim 1, characterized in that, The deodorizing agent is selected from: zinc ricinoleate, persimmon tannin, and probiotics.

7. The slow-release cleaning agent for intelligent machines according to claim 1, characterized in that, The stabilizer is selected from: dimethylsiloxane, modified silicone oil, and modified silicone resin.

8. The slow-release cleaning agent for intelligent machines according to claim 1, characterized in that, The adhesive is prepared by compounding polyvinyl alcohol and sodium carboxymethyl cellulose in a mass ratio of 2:1 to 1:

2.

9. The slow-release cleaning agent for intelligent machines according to claim 1, characterized in that, The weight ratio of the organic bactericide to the inorganic bactericide is 3:1 to 5:

1.

10. The slow-release cleaning agent for intelligent machines according to claim 1, characterized in that, The stabilizer comprises a polydimethylsiloxane and epoxy-modified silicone oil composite with a weight average molecular weight of 5000-8000.

Images