CN115368977B - Binary package low-VOC (volatile organic compound) adhesive remover and preparation method thereof - Google Patents

Abstract

The application relates to the technical field of B08, in particular to a binary package low-VOC viscose remover and a preparation method thereof. The binary package low VOC mucilage glue remover comprises, by weight, 0.2-2 parts of wetting agent, 0.2-3 parts of unsaturated amide, 20-30 parts of D-limonene, 2-10 parts of isomeric alcohol polyoxyethylene ether, 10-20 parts of cosolvent and 30-45 parts of water. The adhesive remover provided by the application does not contain toxic and harmful substances such as chlorohydrocarbon, aromatic hydrocarbon, formaldehyde and the like, takes green and environment-friendly raw materials as a main material, takes a high-performance additive as an auxiliary material, adopts a natural source surfactant, and develops a binary package low-VOC adhesive remover by a binary package aerosol filling technology, wherein the adhesive remover is an aerosol type cleaning agent which meets the standard of limit value of the content of Volatile Organic Compounds (VOCs) in GB 38508 cleaning agent.

Description

Binary package low-VOC (volatile organic compound) adhesive remover and preparation method thereof

Technical Field

The application relates to the technical field of B08, in particular to a binary package low-VOC (volatile organic compound) viscose remover and a preparation method thereof.

Background

CN201911116958 is a flame-retardant glue-removing aerosol obtained by using a water-soluble solvent, an emulsifier, a corrosion inhibitor and limonene, the penetration capacity and cleaning effect of the aerosol are to be improved, and meanwhile, the stability is poor, so that the application of the aerosol is limited.

Disclosure of Invention

Aiming at some problems existing in the prior art, the first aspect of the application provides a binary package low VOC mucilage glue remover, which comprises, by weight, 0.2-2 parts of wetting agent, 0.2-3 parts of unsaturated amide, 20-30 parts of D-limonene, 2-10 parts of isomeric alcohol polyoxyethylene ether, 10-20 parts of cosolvent and 30-45 parts of deionized water.

Preferably, the wetting agent is 1 part by weight.

In one embodiment, the wetting agent is selected from one or more of fatty alcohol polyoxyethylene ether, alkylphenol polyoxyethylene, alkyl naphthalene sulfonate, alkyl sulfate, fast penetrating agent T, hunsman T-1004.

Examples of the fatty alcohol-polyoxyethylene ether in the present application include wetting agents JFC and AEO-3.

Examples of alkylphenol ethoxylates in the present application include nonylphenol polyoxyethylene ether NP series and octylphenol polyoxyethylene ether OP series.

Examples of alkyl sulfates in the present application include sodium dodecyl sulfate.

As the alkyl naphthalene sulfonate in the present application, sodium butylnaphthalene sulfonate, morwet EFW, morwet IP, morwet D-425 and the like can be exemplified.

Preferably, the critical micelle concentration of the fatty alcohol-polyoxyethylene ether at 25 ℃ is 0.8-1.2g/L, more preferably 1g/L.

Preferably, the HLB value of the fatty alcohol-polyoxyethylene ether is 10 to 13, more preferably 11.6.

Preferably, the cloud point of the fatty alcohol-polyoxyethylene ether is 47-53 ℃.

Preferably, the brand of the fatty alcohol-polyoxyethylene ether is Ethylan@1005.

Preferably, the unsaturated amide has an HLB value of from 5 to 7, more preferably 6.

Preferably, the unsaturated amide has a kauri-Butanol number greater than 1000.

Preferably, the unsaturated amide is available under the trademark STEPSOOL MET-10U.

In one embodiment, the weight ratio of unsaturated amide to D-limonene is (1-3): (20-30), preferably 3:20.

In one embodiment, the isomeric alcohol polyoxyethylene ether is selected from one or more of isomeric decaalcohol polyoxyethylene ether, isomeric undecanol polyoxyethylene ether and isomeric tridecanol polyoxyethylene ether, and is preferably isomeric tridecanol polyoxyethylene ether.

Preferably, the mol mass of the isomeric tridecanol polyoxyethylene ether is 340-750g/mol.

Preferably, the HLB value of the isomeric tridecanol polyoxyethylene ether is 9-14.5.

In one embodiment, the isomeric tridecanol polyoxyethylene ether has a brand name of one or more of Yangbuck TO-3, yangbuck TO-5, yangbuck TO-6, yangbuck TO-7, yangbuck TO-8, yangbuck TO-10, yangbuck TO-12.

The isomeric tridecyl alcohol polyoxyethylene ether is purchased from Guangzhou Honghai chemical industry Co.

The information of the brands of the isotridecyl alcohol polyoxyethylene ether is shown in the table below.

TO	3	5	6	7	8	10	12
								Physical shapeState of	Liquid	Liquid	Liquid	Liquid	Liquid	Liquid/paste	Paste body
EO number about	3	5	6	7	8	10	12
								Activity%	100	100	100	100	100	100	100
Cloud Point ℃ (in BDG)	40	62	67	70	80	82	88
								Molar mass g/mol	340	430	470	500	600	630	750
PH value (5% aqueous solution)	7	7	7	7	7	7	7
								Density g/ml	0.93	0.96	0.97	0.98	1.01	0.97(60℃)	0.99(60℃)
HLB	9	10.5	11	12	13	13.5	14.5
								Foaminess ml	10	50	70	120	550	600	600
Surface tension mN/m	27	27	27	27	28	28	31

In one embodiment, the cosolvent is selected from one or more of toluene, methane, trichloroethylene, carbon tetrachloride, tetrachloroethylene, ethylene glycol monobutyl ether, propylene glycol methyl ether, diethylene glycol butyl ether, ethylene glycol, and propylene glycol.

The applicant found in experiments that when the cosolvent is one or more of toluene, methane, trichloroethylene, carbon tetrachloride and tetrachloroethylene, the cleaning effect is better, however, the toxicity and the harm of the substances are reduced, so that the safety and the environmental protection are reduced.

In addition, the applicant has unexpectedly found that when the specific unsaturated amide and one or more selected from ethylene glycol monobutyl ether, propylene glycol methyl ether, diethylene glycol butyl ether, ethylene glycol and propylene glycol are used, the problem that the cleaning effect is low when one or more selected from ethylene glycol monobutyl ether, propylene glycol methyl ether, diethylene glycol butyl ether, ethylene glycol and propylene glycol are added is solved, and the formula is nontoxic and harmless.

In one embodiment, the weight ratio of the isomeric alcohol polyoxyethylene ether to the cosolvent is (3-7): (10-20), preferably 5:10.

The applicant has found unexpectedly that when the weight ratio of the isomeric alcohol polyoxyethylene ether to the cosolvent is (3-7): (10-20), especially at the time of 5:10, the content of the cosolvent has good coordination with unsaturated amide, so that the problem of poor cleaning effect of the specific cosolvent is avoided, and meanwhile, the stability of the viscose remover is obviously improved.

The application provides a preparation method of the binary package low-VOC adhesive remover, which comprises the following steps:

(1) Adding unsaturated amide and isomeric alcohol polyoxyethylene ether into deionized water, stirring and dissolving to obtain a solution A;

(2) Adding a wetting agent and D-limonene into a cosolvent, and stirring for dissolution to obtain a solution B;

(3) Adding the solution B into the solution A under stirring, and emulsifying to obtain a semitransparent homogeneous liquid;

(4) And vacuumizing the aerosol can, filling compressed air, filling air, sealing, and filling semitransparent homogeneous liquid.

Preferably, the conditions of stirring and dissolving in the step (1) are as follows: 500-1000r/s,20-40 ℃ and 5-10min.

Preferably, the conditions of stirring and dissolving in the step (2) are as follows: 500-1000r/s,20-40 ℃ and 5-20min.

Preferably, the stirring conditions in step (3) are: 1000-1500r/s,20-40 ℃ and 10-30min.

In one embodiment, in the method of preparing the adhesive remover, 3g of compressed air is charged per 450mL of aerosol canister.

The compressed air quantity is too small, the pressure is insufficient, the feed liquid cannot be completely sprayed, the compressed air quantity is too large, the pressure is too large, the impact force is too large, atomization is poor, and meanwhile, the safety problem exists.

Compared with the prior art, the application has the following beneficial effects:

(1) The adhesive remover provided by the application does not contain toxic and harmful substances such as chlorohydrocarbon, aromatic hydrocarbon, formaldehyde and the like, takes green and environment-friendly raw materials as a main material, takes a high-performance additive as an auxiliary material, adopts a natural source surfactant, and develops a binary packaging low-VOC adhesive remover by a binary packaging aerosol filling technology, wherein the adhesive remover is an aerosol type cleaning agent which accords with the standard of GB 38508 limit value of the content of Volatile Organic Compounds (VOCs) in cleaning agent.

(2) The application adopts an aqueous formula system, which not only has excellent cleaning power, but also reduces the content of VOCs raw materials to the greatest extent, and has low cost by regulating and controlling the content of each raw material.

(3) The compressed air is used as the propellant, the binary packaging mode is adopted, the single packaging mode of a DME and LPG system is directly replaced, and the content of VOCs in the product is reduced to the greatest extent.

(4) The wetting agent is fatty alcohol polyoxyethylene, the critical micelle concentration at 25 ℃ is 1g/L, the HLB value is 11.6, the cloud point is 47-53 ℃, and especially the Ethylan@1005 has the advantages of low foam, good degreasing, good wetting effect, good emulsifying property and good biodegradability, and the specific small molecular structure enables the viscose remover to have a higher cleaning speed.

(5) According to the application, by adding STEPSOOL MET-10U, the viscose remover has good biodegradability and a certain cleaning effect is ensured.

(6) The weight ratio of the components is (1-3): (20-30), especially 3:20 unsaturated amide and D-limonene, the obtained adhesive remover not only has better stability, but also can achieve better adhesive and oil stain cleaning effects with less adhesive remover content.

(7) The isomeric tridecanol polyoxyethylene ether improves the processability of the adhesive remover, reduces the production time of the adhesive remover, and simultaneously improves the cleaning effect of the adhesive remover due to excellent wetting, permeation and emulsifying properties.

(8) When the weight ratio of the isomeric alcohol polyoxyethylene ether to the cosolvent is (3-7): (10-20), especially at the time of 5:10, the content of the cosolvent has good coordination with unsaturated amide, so that the problem of poor cleaning effect of the specific cosolvent is avoided, and meanwhile, the stability of the viscose remover is obviously improved.

Drawings

FIG. 1 is a schematic illustration of an aerosol canister;

FIG. 2 is a schematic diagram of a valve;

FIG. 3 is a schematic diagram of a spray head;

FIG. 4 is a schematic diagram of the finished product;

FIG. 5 is a schematic diagram showing the dimensions of a test piece in the method for testing the cleaning force;

fig. 6 is a schematic diagram of an artificial oil stain coated part in a cleaning force test method.

Detailed Description

The present application is illustrated by the following specific embodiments, but is not limited to the specific examples given below.

Examples

Examples 1 to 6

The binary package low VOC adhesive remover has specific components and permeation effects shown in table 1, and the components are in parts by weight.

TABLE 1

In Table 1, the isomeric tridecanol polyoxyethylene ether was purchased from Guangzhou Honghai chemical Co., ltd, and the brand name is Yangby TO-6. The surface tension is measured by a surface tension tester, and the lower the surface tension is, the better the penetration effect is.

From the viewpoint of cost and permeation effect, the requirements of permeation force and cost can be balanced when the addition amount of ethyllan@1005 is 1.0 wt%.

Examples 7 to 14

The binary package low VOC adhesive remover has specific components and permeation effects shown in Table 2, and the components are in parts by weight.

TABLE 2

Wherein the isomeric tridecanol polyoxyethylene ether is the same as in example 3.

The cleaning force test method is as follows:

a.1 method summary

And (3) coating the artificial oil stain on the test piece, performing swabbing by using a swabbing machine, and evaluating the cleaning force by using the quality change of the metal test piece before and after the swabbing.

A2 reagents and materials

A.2.1 502 glue

A.3 instruments and apparatus

A.3.1 forced air drying oven: 0 ℃ to 300 ℃ and the temperature control precision is +/-2 DEG C

A.3.2 electronic balance: precision 0.1mg

A.3.3 pendulum washing machine: the frequency of the swinging washer (30+/-2) times/min swinging spoke (50+/-6) mm can be used for simultaneously hanging 6 test pieces and is provided with 6 500ml swinging washing tanks

A.3.4 temperature-adjustable electric jacket: 500ml

A.3.5 beaker: 1000ml

A.3.6 standard neck round bottom flask: 500ml

A.3.7 standard-mouth spherical condenser tube

A.3.8 metal test piece: the test piece size is shown in FIG. 5, using 1Cr18Ni9Ti stainless steel 50mm by 25mm (3-5) mm;

a.4 Experimental procedure

a) And (3) sequentially wiping and washing the polished metal test piece in solvent gasoline, absolute ethyl alcohol and acetone, blowing the polished metal test piece to be dry by hot air, and then placing the polished metal test piece in a dryer to cool the polished metal test piece to room temperature, and weighing the polished metal test piece to the accuracy of 0.1mg.

b) The artificial oil stain is taken up by a knife, uniformly coated on a specified part on one side of the test piece, the rest surface is not coated (as shown in fig. 6), and the redundant oil stains on both sides and the bottom side of the test piece are wiped off by filter paper. The oil stain coating amount should be controlled between (0.10-0.20) g, and accurate to 0.1mg.

c) The test piece coated with standard dirt and weighed is fixed on a swinging washer by a hook, so that the test piece is perpendicular to the swinging direction, and is respectively immersed into 3 swinging washing tanks filled with 500ml of cleaning liquid at 25+/-2 ℃ for 5min, and is immediately started to be immersed for 5min, and the swinging frequency (40+/-2) times/min and the swinging frequency (50+/-6) mm. The test piece was taken out and washed 10 times with the above frequency and swing in 500mL of pure water at room temperature. The test piece is placed in an oven at the temperature of 105+/-2 ℃ for 30-40 min, taken out, placed in a drying oven for cooling to room temperature, and weighed to the accuracy of 0.1mg.

A.5 representation and calculation of results:

the cleaning force X, expressed in mass percent (%), is calculated according to formula (1):

wherein:

x- -detergency%

M ₀ Mass of test piece, mg

M ₁ Mass of test piece and greasy dirt, mg

M ₂ Mass of test piece after washing, mg

A6 determination of results

The washing rate obtained by the parallel test using three test pieces should be such that the difference between the values of at least two test pieces is not more than 3%, otherwise, the test should be repeated.

From the viewpoints of detergency effect and VOC content, it is preferable that the STEPSOOL MET-10U content is 3% by weight and the D-limonene content is 20% by weight.

Examples 15 to 22

Determining the System stabilization Effect

After the emulsification of the product is completed, the stability of the product (rated rotation speed 1500r/min, stability of a product system is measured according to layering time, and the longer the time is, the more stable the time is) is tested by using a centrifugal method, and the best proportion is selected for implementation.

The binary package low VOC adhesive remover has specific components and permeation effects shown in Table 3, and the components are in parts by weight.

TABLE 3 Table 3

Wherein the isomeric tridecanol polyoxyethylene ether is the same as in example 3.

The preparation method of the adhesive remover in examples 1-22 comprises the following steps:

(1) Adding unsaturated amide and isomeric alcohol polyoxyethylene ether into deionized water, and stirring at 30 ℃ and 800r/s for 8min to obtain a solution A;

(2) Adding a wetting agent and D-limonene into a cosolvent, and stirring at 30 ℃ for 10min at 800r/s to obtain a solution B;

(3) Adding the solution B into the solution A under the condition of stirring at 30 ℃ and 1200r/s, stirring for 20min, and emulsifying to obtain a semitransparent homogeneous liquid;

(4) The aerosol can is discharged in the can loading platform link, a valve is conveyed by an automatic valve discharging machine, the aerosol can is vacuumized by the air charging equipment, 3g of compressed air is charged, and the air is sealed; filling equipment fills liquid; the automatic nozzle machine is provided with a nozzle; cover is covered on the automatic cover feeding machine; spraying codes; packaging; and (5) warehousing finished products. Wherein the aerosol can is shown in figure 1, the valve is shown in figure 2, the spray head is shown in figure 3, and the finished product is shown in figure 4.

The stability test method comprises the following steps: the product is treated under the condition of rated rotating speed of 1500r/min, the stability of the product system is measured according to the layering time, and the longer the time is, the more stable the product system is.

Claims (1)

1. The binary package low-VOC viscose remover is characterized in that the preparation raw materials comprise, by weight, 0.2-2 parts of wetting agent, 0.2-3 parts of unsaturated amide, 20-30 parts of D-limonene, 2-10 parts of isomeric alcohol polyoxyethylene ether, 10-20 parts of cosolvent and 30-45 parts of deionized water;

the weight ratio of the unsaturated amide to the D-limonene is (1-3): (20-30);

the weight ratio of the isomeric alcohol polyoxyethylene ether to the cosolvent is (3-7): (10-20);

the wetting agent is fatty alcohol polyoxyethylene ether, the critical micelle concentration at 25 ℃ is 1g/L, the HLB value is 11.6, and the cloud point is 47-53 ℃;

the cosolvent is diethylene glycol monobutyl ether;

the isomeric alcohol polyoxyethylene ether is isomeric tridecanol polyoxyethylene ether;

the brand of the unsaturated amide is STEPSOOL MET-10U;

the preparation method of the binary package low-VOC adhesive remover comprises the following steps:

(1) Adding unsaturated amide and isomeric alcohol polyoxyethylene ether into deionized water, stirring and dissolving to obtain a solution A;

(2) Adding a wetting agent and D-limonene into a cosolvent, and stirring for dissolution to obtain a solution B;

(3) Adding the solution B into the solution A under stirring, and emulsifying to obtain a semitransparent homogeneous liquid;

(4) Vacuumizing the aerosol can, filling compressed air, filling air, sealing, and filling semitransparent homogeneous liquid;

the stirring and dissolving conditions in the step (1) are as follows: 500-1000r/s,20-40 ℃ and 5-10min.