KR20230034913A - Screening method of solvent for extracting polyvinyl chloride, composition, recycled polyvinyl chloride and method for recycling waste - Google Patents

Abstract

The present specification relates to a screening method for a solvent for polyvinyl chloride extraction, a composition, and a method for recycling recycled polyvinyl chloride and wastes. The screening method for the solvent for polyvinyl chloride extraction comprises the following steps of: selecting a good solvent for extracting polyvinyl chloride from the wastes containing polyvinyl chloride as one of solvents having a PVC swelling score value of 0 or less according to Equation 1 below; and selecting a non-solvent for extracting the polyvinyl chloride from the wastes containing the polyvinyl chloride. According to an exemplary embodiment of the present specification, various good solvent-non-solvent combinations suitable for a process of extracting the polyvinyl chloride from the wastes containing the polyvinyl chloride can be found.

Description

Screening method of solvent for polyvinyl chloride extraction, composition, recycling method of recycled polyvinyl chloride and waste

This specification is the Korean patent application submitted to the Korean Intellectual Property Office on September 03, 2021 Claims the benefit of the filing date of No. 10-2021-0117886, the entire contents of which are incorporated herein.

The present specification relates to a method for screening a solvent for polyvinyl chloride extraction, a composition, and a method for recycling recycled polyvinyl chloride and waste.

Plastics can be molded into various shapes by heat or pressure, and as the quality of materials is gradually improving, plastics are used to replace objects in everyday life, or new products using them are being developed.

Since these plastics are convenient and easy to use, demand for products made of plastics such as plastic bags, PET bottles, disposable products, packaging products, and electronic products is gradually increasing worldwide.

Plastic used and discarded in this way is incinerated or landfilled. In the case of incineration, a lot of pollutants harmful to the human body are discharged, so the discarded plastic is landfilled rather than incinerated.

However, most plastics take a long time to decompose naturally after disposal, and since the amount of plastic that is landfilled is considerable, interest in plastic recycling is increasing.

Among plastics, polyvinyl chloride (PVC) is widely used in construction materials (pipes, window frames, etc.), wire coatings, synthetic leather, rubber basins, hoses, flooring materials, packaging materials, medical infusion bags, toys, and the like. Various methods for recycling PVC from wastes containing PVC and materials that can minimize damage to humans and the environment during the recycling process must be sought.

The present specification provides a method for screening a solvent for extracting polyvinyl chloride, a composition, and a method for recycling recycled polyvinyl chloride and waste.

In one embodiment of the present specification, selecting a good solvent for extracting the polyvinyl chloride from waste containing polyvinyl chloride as one of solvents having a PVC swelling score value of 0 or less according to Equation 1 below; And a non-solvent for extracting the polyvinyl chloride from waste containing polyvinyl chloride as a solvent for extracting polyvinyl chloride comprising the step of selecting any one of solvents having a PVC swelling score value greater than 0 according to the following formula 1 A screening method is provided.

[Equation 1]

In Equation 1 above,

x ₁ , x ₂ , x ₃ and x ₄ are real numbers from 0 to 5, respectively;

Dipole is the dipole moment of a solvent molecule,

Asphericity is the asphericity of solvent molecules,

dH is the Hansen solubility parameter for hydrogen bonding of solvent molecules,

Polar Surface Area is a fractional polar surface area.

Another embodiment of the present specification is polyvinyl chloride extracted from waste containing polyvinyl chloride; A good solvent of any one of the solvents having a PVC swelling score value of 0 or less according to Formula 1 below; and a non-solvent of any one of solvents having a PVC swelling score value greater than 0 according to Equation 1 below.

[Equation 1]

In Equation 1 above,

x ₁ , x ₂ , x ₃ and x ₄ are real numbers from 0 to 5, respectively, Dipole is the dipole moment of the solvent molecule, Asphericity is the asphericity of the solvent molecule, dH is the Hansen solubility parameter for the hydrogen bond of the solvent molecule , and the Polar Surface Area is a fractional polar surface area.

Another embodiment of the present specification provides recycled polyvinyl chloride obtained by filtering the above-described composition.

Another embodiment of the present specification includes the steps of selecting a good solvent and non-solvent for polyvinyl chloride extraction using the above-described solvent screening method; contacting the waste containing the polyvinyl chloride with the good solvent and dissolving the polyvinyl chloride in the waste with the good solvent to obtain a polyvinyl chloride solution; And by contacting the dissolving solution with the non-solvent, it provides a method of recycling waste containing polyvinyl chloride comprising the step of precipitating polyvinyl chloride from the dissolving solution.

According to one embodiment of the present specification, various good solvent-non-solvent combinations suitable for the process of extracting polyvinyl chloride from waste containing polyvinyl chloride can be found.

Hereinafter, this specification will be described in detail.

The present specification intends to provide an appropriate combination of a good solvent and a non-solvent selected using parameters capable of predicting, classifying, and evaluating usable solvents for extracting polyvinyl chloride (PVC) from waste. Through this, it is possible to discover a new combination of a good solvent and a non-solvent capable of extracting PVC. Here, the solvent capable of extracting PVC refers to all solvents used to extract PVC from waste, specifically, a good solvent capable of dissolving PVC from waste due to its high solubility in PVC, as well as a solvent in which PVC is dissolved. A non-solvent capable of obtaining PVC by precipitating PVC from a good solvent is also included.

In one embodiment of the present specification, selecting a good solvent for extracting the polyvinyl chloride from waste containing polyvinyl chloride as one of solvents having a PVC swelling score value of 0 or less according to Equation 1 below; And a non-solvent for extracting the polyvinyl chloride from waste containing polyvinyl chloride as a solvent for extracting polyvinyl chloride comprising the step of selecting any one of solvents having a PVC swelling score value greater than 0 according to the following formula 1 A screening method is provided.

[Equation 1]

In Equation 1 above,

x ₁ , x ₂ , x ₃ and x ₄ are real numbers from 0 to 5, respectively;

Dipole is the dipole moment of a solvent molecule,

Asphericity is the asphericity of solvent molecules,

dH is the Hansen solubility parameter for hydrogen bonding of solvent molecules,

Polar Surface Area is a fractional polar surface area.

In one embodiment of the present specification, the solvent dipole moment, asphericity, Hansen dissolution parameter, and fractional polar surface area are used to calculate the affinity of PVC and the solvent, and based on the calculated result, a good solvent that is well mixed with PVC, That is, a solvent that can separate PVC from waste and a non-solvent that does not mix well with PVC, that is, a solvent that can precipitate PVC from a solvent in which PVC is dissolved, can be classified.

In one embodiment of the present specification, Equation 1 expresses the solubility of PVC according to the solvent using dipole moment, asphericity, dH and Polar Surface Area. When the solvent molecules are polar, the interaction with PVC increases, and as the solvent molecules exist in a spherical shape, they are compressed in the same mass, so they can penetrate well between PVC chains, thereby increasing solubility. The contribution of hydrogen bonding to the Hansen dissolution parameter reflects an increase in solubility if hydrogen bonding between solvent molecules and PVC increases. In the case of the Polar Surface Area, a polar portion is exposed on the surface, which indicates whether the interaction with the PVC polymer is easier.

In one embodiment of the present specification, Equation 1 means a solubility score considering factors that can determine solubility between PVC and a solvent together with variables of experimental conditions such as temperature. Equation 1 has a smaller value as the solubility of PVC increases.

In one embodiment of the present specification, through the value of Equation 1, the reference value for distinguishing the good solvent and the non-solvent is 3, 2.5, 2, 1.5, 1, 0.5, 0, -0.5, -1, -1.5, - Good solvents and non-solvents can be distinguished based on 2, -2.5 or -3. Specifically, if it is less than the reference value, it can be determined as a good solvent, and if it exceeds the reference value, it can be determined as a non-solvent.

In Equation 1 of an exemplary embodiment of the present specification, Dipole means the dipole moment of a solvent molecule, and can be calculated with a general descriptor calculation program, and can be calculated using Dragon, Mordred, PaDEL-Descriptor, and the like.

In Equation 1 of an exemplary embodiment of the present specification, asphericity indicates whether a solvent molecule is structurally close to a sphere, and can be calculated with a general descriptor calculation program, using Dragon, Mordred, PaDEL-Descriptor, etc. Can be calculated.

In Equation 1 of an exemplary embodiment of the present specification, dH means a hydrogen bond index of Hansen solubility parameter, and a predicted value can be obtained through a program called Hansen Solubility Parameter.

In Equation 1 of an exemplary embodiment of the present specification, the polar surface area is a fractional polar surface area, which indicates the degree to which a polar part is exposed on the surface, and the greater the degree of polar exposure on the surface, the easier the interaction with the PVC polymer . Polar Surface Area can be calculated in CORINA and BIOVIA's Discovery Studio.

Depending on process conditions such as temperature and pressure, the values of x ₁ , x ₂ , x ₃ and x ₄ can be adjusted. As the temperature rises or the pressure decreases, the diffusion rate of the solvent molecules increases, and accordingly, x ₂ (spherical shape of the solvent molecule) related to diffusion can increase due to a higher dependence, and when the temperature decreases or the pressure decreases It is necessary to increase the parameters of x ₁ , x ₃ , and x ₄ because the interaction with PVC is more important than the solvent diffusion rate.

In one embodiment of the present specification, x ₁ is a control variable determined by process conditions such as temperature and pressure. x ₁ is a real number of 0 to 5, specifically a real number of 0 to 3, more specifically a real number of 0 to 2, preferably 1.5. Through x ₁ , the interaction between PVC and solvent molecules can be considered important, and when the process conditions are changed, the influence of the dipole parameter value in Equation 1 increases as the contribution of the interaction between PVC and solvent molecules increases. When the contribution of the interaction between PVC _{and solvent molecules decreases, the value of x 1 can} be reduced so that the influence of the dipole parameter value in Equation 1 is reduced. For example, when the temperature of the process conditions is high or the pressure is low, the diffusion of molecules increases, reducing the contribution of the interaction between PVC and solvent molecules, so that the influence of the dipole parameter value in Equation 1 is reduced through x ₁ Should be.

In one embodiment of the present specification, x ₂ is a control variable determined by process conditions such as temperature and pressure. x ₂ is a real number of 0 to 5, specifically a real number of 0 to 3, more specifically a real number of 0 to 2, preferably 1.5.

In one embodiment of the present specification, x ₂ is a variable related to asphericity, and asphericity means the size per unit mass of solvent molecules, and the closer it is to a sphere, the easier it is to penetrate PVC. When the process conditions are changed, the x ₂ value is increased so that the influence of the Asphericity parameter value in Equation 1 increases when the contribution of PVC and molecular diffusion increases, and when the contribution of PVC and molecular diffusion decreases, the Asphericity parameter in Equation 1 You can reduce the value of x ₂ to lessen the effect of the value. For example, when the temperature of the process conditions is high or the pressure is low, the diffusion of molecules increases and the movement of solvent molecules becomes active. It should be adjusted through x ₂ so that the effect of the value is large.

In one embodiment of the present specification, x ₃ is a control variable determined by process conditions such as temperature and pressure. x ₃ is a real number of 0 to 5, specifically a real number of 0 to 3, more specifically a real number of 0 to 1, and preferably may be 0.5. The hydrogen bond between PVC and solvent molecules can be considered important through x ₃ , and when the process conditions are changed, the diffusion of molecules increases and the contribution of hydrogen bonds between PVC and solvent molecules decreases. The dH parameter in Equation 1 The value of x ₃ can be reduced so that the effect of the value is small, and the value of x ₃ can be increased so that the effect of the dH parameter value in Equation 1 increases when the contribution of hydrogen bonding between PVC and solvent molecules increases. For example, when the temperature of the process conditions is _high or the pressure is low, the diffusion of molecules increases, reducing the contribution of hydrogen bonding between PVC and solvent molecules.

In one embodiment of the present specification, x ₄ is a control variable determined by process conditions such as temperature and pressure. x ₄ is a real number of 0 to 5, specifically a real number of 0 to 3, more specifically a real number of 0 to 1, and preferably may be 0.25. Through x ₄ , the interaction between PVC and solvent molecules can be considered important, and when the process conditions are changed, the molecular diffusion increases and the contribution of the interaction between PVC and solvent molecules decreases. Polar Surface Area in Equation 1 The value of x ₄ can be reduced so that the effect of the parameter value is small, and the value of x ₄ can be increased so that the effect of the value of the Polar Surface Area parameter in Equation 1 increases when the contribution of the interaction between PVC and solvent molecules increases. For example, when the temperature of the process conditions is high or the pressure is low, the diffusion of molecules increases, reducing the contribution of interactions between PVC and solvent molecules, so the effect of the Polar Surface Area parameter value must be adjusted through x ₄ to reduce .

In one embodiment of the present specification, a solvent having a PVC swelling score value of 0 or less according to Equation 1 may be determined as a good solvent for polyvinyl chloride. At this time, the good solvent means a solvent capable of dissolving polyvinyl chloride, and is a solvent capable of dissolving and extracting polyvinyl chloride from waste.

In one embodiment of the present specification, when x ₁ is 1.5, x ₂ is 1.5, x ₃ is 0.5, and x ₄ is 0.25, the solvent having a PVC swelling score value of 0 or less according to Equation 1 is polyvinyl chloride It can be judged as a good solvent for

In one embodiment of the present specification, a solvent having a PVC swelling score value greater than 0 according to Equation 1 may be determined as a non-solvent for polyvinyl chloride. At this time, the non-solvent means a solvent having low solubility for polyvinyl chloride, and is a solvent that can be used when precipitating polyvinyl chloride from the extracted polyvinyl chloride solution.

In one embodiment of the present specification, when x ₁ is 1.5, x ₂ is 1.5, x ₃ is 0.5, and x ₄ is 0.25, the solvent having a PVC swelling score value greater than 0 according to Equation 1 is polychlorinated It can be judged as a non-solvent for vinyl.

In one embodiment of the present specification, the difference between the PVC swelling score value of the good solvent and the PVC swelling score value of the non-solvent is 0.1 or more, 0.2 or more, 0.3 or more, 0.4 or more, 0.5 or more, 0.6 or more, 0.7 or more, 0.8 or more. , 0.9 or more, 1 or more, 1.1 or more, 1.2 or more, 1.3 or more, 1.4 or more, 1.5 or more, 1.6 or more, 1.7 or more, 1.8 or more, 1.9 or more, 2 or more, 2.1 or more, 2.2 or more, 2.3 or more, 2.4 or more, 2.5 2.6 or higher, 2.7 or higher, 2.8 or higher, 2.9 or higher, 3 or higher, 3.1 or higher, 3.2 or higher, 3.3 or higher, 3.4 or higher, 3.5 or higher, 3.6 or higher, 3.7 or higher, 3.8 or higher, 3.9 or higher, 4 or higher, 4.1 or higher, 4.2+, 4.3+, 4.4+, 4.5+, 4.6+, 4.7+, 4.8+, 4.9+, 5+, 5.1+, 5.2+, 5.3+, 5.4+, 5.5+, 5.6+, 5.7+, 5.8+ , 5.9+, 6+, 6.1+, 6.2+, 6.3+, 6.4+, 6.5+, 6.6+, 6.7+, 6.8+, 6.9+, 7+, 7.1+, 7.2+, 7.3+, 7.4+, 7.5 7.6 or higher, 7.7 or higher, 7.8 or higher, 7.9 or higher, 8 or higher, 8.1 or higher, 8.2 or higher, 8.3 or higher, 8.4 or higher, 8.5 or higher, 8.6 or higher, 8.7 or higher, 8.8 or higher, 8.9 or higher, 9 or higher, 9.1 or higher, 9.2 or higher, 9.3 or higher, 9.4 or higher, 9.5 or higher, 9.6 or higher, 9.7 or higher, 9.8 or higher, 9.9 or higher, or 10 or higher.

In one embodiment of the present specification, the difference between the PVC swelling score value of the good solvent and the PVC swelling score value of the non-solvent may be 1.5 or more.

In one embodiment of the present specification, the boiling point of the good solvent is 70 ℃ or more, 71 ℃ or more, 72 ℃ or more, 73 ℃ or more, 74 ℃ or more, 75 ℃ or more, 76 ℃ or more, 77 ℃ or more, 78 ℃ or more, 79 °C or more, 80 °C or more, 81 °C or more, 82 °C or more, 83 °C or more, 84 °C or more, 85 °C or more, 86 °C or more, 87 °C or more, 88 °C or more, 89 °C or more, 90 °C or more, 95 °C or more Or it may be 100 ℃ or more. In this case, when heating is required in the process, it has a boiling point higher than the heating temperature, which is advantageous because there is no loss of the good solvent by heating, and the volatility is controlled to some extent, so it is easy to handle. At this time, the upper limit of the boiling point of the good solvent is not particularly limited, but if the boiling point is too high, the energy required for drying may increase in the process of drying after the PVC extraction is completed, so the good solvent can be selected in consideration of the process cost. For example, the boiling point of the good solvent may be 400°C or less, 350°C or less, or 300°C or less.

Another embodiment of the present specification is polyvinyl chloride extracted from waste containing polyvinyl chloride; A good solvent of any one of the solvents having a PVC swelling score value of 0 or less according to Formula 1 below; and a non-solvent of any one of solvents having a PVC swelling score value greater than 0 according to Equation 1 below.

[Equation 1]

In Equation 1 above,

Dipole is the dipole moment of the solvent molecule, Asphericity is the asphericity of the solvent molecule, dH is the Hansen melting parameter for the hydrogen bond of the solvent molecule, and Polar Surface Area is the fractional polar surface area.

Here, the description of Equation 1 refers to the above description to avoid duplication.

In one embodiment of the present specification, the waste polyvinyl chloride recycling composition is polyvinyl chloride extracted from waste containing polyvinyl chloride by the good solvent, the good solvent used in polyvinyl chloride extraction, and the extracted polyvinyl chloride. It means a state in which all non-solvents that separate and precipitate from the good solvent are included. Depending on the ratio of the good solvent and the non-solvent, the polyvinyl chloride extracted may coexist with the polyvinyl chloride dissolved in the good solvent and the precipitated polyvinyl chloride, or most of the polyvinyl chloride may be precipitated and settled in a solid state.

In one embodiment of the present specification, in the waste polyvinyl chloride recycling composition, when the weight of the good solvent is 100, the content of the non-solvent is at least 100 parts by weight or more, equal to or greater than the weight of the good solvent, so that the solute can precipitate. The higher the content of the non-solvent, the easier the precipitation of the solute and the shorter the process time. However, in order to increase the purity of the solute, it is preferable to adjust the content of the non-solvent in consideration of an appropriate precipitation rate and particle size of the precipitated solute.

In one embodiment of the present specification, when the weight of the good solvent is 100, the content of the non-solvent is 100 parts by weight or more, 150 parts by weight or more, 200 parts by weight or more, 250 parts by weight or more, 300 parts by weight or more, 350 It may be 400 parts by weight or more, 450 parts by weight or more, or 500 parts by weight or more, and may be 1000 parts by weight or less, 900 parts by weight or less, 800 parts by weight or less, 700 parts by weight or less, or 600 parts by weight or less.

In one embodiment of the present specification, the content of the good solvent is not particularly limited as long as ABS in the waste can be dissolved. When the weight of the waste containing waste polyvinyl chloride is 100, the content of the good solvent is at least 100 parts by weight or more, and the solute can be precipitated by adding the same or more than the weight of the waste.

In one embodiment of the present specification, when the weight of waste containing waste polyvinyl chloride is 100, the content of the good solvent is 100 parts by weight or more, 150 parts by weight or more, 200 parts by weight or more, 250 parts by weight or more, 300 parts by weight or more, 350 parts by weight or more, 400 parts by weight or more, 450 parts by weight or more, or 500 parts by weight or more, and 1000 parts by weight or less, 900 parts by weight or less, 800 parts by weight or less, 700 parts by weight or less, or 600 parts by weight may be below.

In one embodiment of the present specification, the good solvent and the non-solvent are each independently any one of an alcohol solvent, a ketone solvent, an ester solvent, an ether solvent, a polar aprotic solvent, a hydrocarbon solvent, and a halogen-containing solvent.

In one embodiment of the present specification, the good solvent is any one of an alcohol-based solvent, a ketone-based solvent, an ester-based solvent, an ether-based solvent, a polar aprotic solvent, a hydrocarbon solvent, and a halogen-containing solvent.

In one embodiment of the present specification, the good solvent has a PVC swelling score value of 0 or less according to Equation 1, and is selected in consideration of the difference in solubility between the non-solvent and polyvinyl chloride used together. The good solvent is n,n-dimethylacetamide, cyclopentanone, 2-pentanone, dioxane, nitrobenzene, ethylacetate, benzene, trichloroethylene, 1,2-dichloroethane, chloroform, cyclohexanone, tetrahydrofuran, 2-butanone, acetone, 4-methylpentan-2-one , 1,2,3-propanetrioltrinitrate, tetramethylenesulfoxide, 1-piperidinecarboxaldehyde, 1-acetylpiperidine, n-methyl-2-pyrrolidinone, 1,4-dimethylpyrrolidone, 1,3-dimethyl-2-imidazolidinone, 1,5-dimethylpyrrolidone, hexamethylphosphoramide , dimethylpropyleneurea, 1-ethyl-2-pyrrolidone, 1,3-dimethylpyrrolidone, 4-acetylmorpholine, 1-[ethoxy(methyl)phosphoryl]methylpiperidine, n,n-dimethylpropanamide, tributylphosphineoxide, 1-propyl-2-pyrrolidinone, n- isopropylpyrrolidone, n,n,4-trimethylbenzamide, n-methyl-o-acetotoluidide, 2-cyclohexen-1-one, n,n,3-trimethylbenzamide, n,n-dimethylbenzamide, trimethylenesulfide, n,n,2-trimethylbenzamide, 1,3-dioxane, tetramethylurea, 2-azacyclooctanone, 4-methyl-1-propyl-2-pyrrolidinone, 5-methyl-1-propyl-2-pyrrolidinone, n,n-die thylacetamide, 1,3-propanedithiol, 4,5-dihydro-2-methylthiazole, pyrrolidine, 3-methoxy-n,n-dimethylpropanamide, 4-fluoro-n,n-dimethylbenzamide, cycloheptanone, 1-morpholinopentan-1-one, 3-methylcyclohexanone, n,n-dimethylbutanamide, caprolactam, tetrahydrothiophene, 2-methoxy-n,n-dimethylbenzamide, dimethylformamide, 1,2-ethanedithiol, 1,4,7,10-tetraoxacyclododecane, ethyl 1,3-dimethyl-2 -oxopyrrolidine-3-carboxylate, 1-(4-methylpiperidyl)butan-1-one, 2-methylcyclohexanone, 1-(2,6-dimethylmorpholin-4-yl)butan-1-one, n,n-diethylformamide, 4 -(propan-2-yl)phenyldimethylcarbamate, n,n-dimethyl-3-phenylpropanamide, n-(1-methyl-2-methoxyethyl)-n-chloroacetyl-2-ethyl-6-methylaniline, dichloroacetylchloride, n,n- diethyl-3-(2-methyl-1,3-dioxolan-2-yl)propanamide, n-acetylcaprolactam, d-camphor, n-methylformanilide, ethyl n-acetyl-n-ethyl-beta-alaninate, (2,5 -dimethoxyphenyl)acetaldehyde, 4-methylcyclohexanone, 2,6-dimethyl-2,5-cyclohexadiene-1,4-dione, 4-vinylcyclohexene dioxide, nicotine, 2-me thylcyclopentanone, dimethylveronal, diethyl(trichloromethyl)phosphonate, 3-methyl-6-isopropylidenecyclohexanone, 1-heptanoyl-4-methylpiperazine, n,n-diethyl-4-oxopentanamide, n-ethyl-n-phenylacetamide, dimethyldisulfide, 4,6- dimethylpyrimidine, 1,4-oxathiane, n-sec-butylpyrrolidone, 1-(4-methylpiperidin-1-yl)pentan-1-one, 1-butyl-5-methyl-2-pyrrolidinone, 3-methyl-2-oxazolidone , n,n-dimethyl-4-(propan-2-yl)benzamide, 2,5-dimethylpyrazine, mesitenelactone, propyl 4-(dimethylamino)-4-oxobutanoate, diethyldimethylamidophosphate, isophorone, n,n-dimethyl 4-methoxybenzamide, 1,2,3,5-tetramethoxybenzene, 3,4,5-trimethoxytoluene, caprolactone, 3-methyl-piperidin-2-one, 2-ethylhexylsalicylate, ethyl 3-ethyl-2-oxooxolane-3-carboxylate, 1-ethyl -3,5,7-trimethyl-1,3-dihydro-azepin-2-one, dimethylisosorbide, cyclotenebutyrate, ethyl 2-(2-methoxyphenoxy)acetate, cyrene, 2,4,4-trimethyl-6-oxocyclohex-1 -en-1-yl acetate, 1,2-benzodihydropyrone, tripropyleneglycolethyletherisomer, 3,4-dimethoxypropioph enone, methylaminoacetaldehydedimethylacetal, methyl 2,6-dimethoxybenzoate, 1,3-dimethyl-1,2,3,4-tetrahydro-4-quinolinone, ethyl 3,5-dimethoxybenzoate, 4-methoxybenzaldehyde, ethyl (4-methylphenoxy)acetate, 2,3,4-trimethoxyacetophenone, ethylimidazole, methyl 2-oxocyclooctanecarboxylate, ethyl 2-methyl-4-oxocyclohex-2-enecarboxylate, 2',5'-dimethoxyacetophenone, isobutylformate, ethyl 2-(2,6-dimethylphenoxy)acetate, ethyl 2-(benzyloxy)acetate, hexylacetoacetate, diethylglutarate, 4-carbethoxy-2-ethyl-3-methyl-2-cyclohexen-1-one, nepetalactone, tripropyleneglycolbutylether, ethyl 5,5-dimethyl-2-oxofuran-3-carboxylate , 2-ethoxybenzaldehyde, methyl-2,4-dimethoxybenzoate, 5,5-diethyl-4-methoxyfuran-2(5h)-one, ethyl 4,6-dimethyl-2-oxo-3,4-dihydro-2h-pyran -5-carboxylate, ethyl 4-phenoxybutanoate, 2,5-dimethoxypropiophenone, ethyl 5,5-dimethyl-2-oxotetrahydrofuran-3-carboxylate, ethyl 3-(5-oxotetrahydrofuran-2-yl)propanoate, benzylsalicylate, n,n -diethyl-4-methyl-4h-pyridine-1-carboxamide, p- tolylacetonitrile, 5-methyl-2(3h)-furanone, 1-methyl-2-(3-pyridyl)pyrrole, formicacidpentylester, ethyl 4-(dimethylamino)benzoate, n-butylacetamide, 4-methylbenzaldehyde, 3',4'- dimethoxyisobutyrophenone, benzaldehyde, 1,2,4-triethoxybenzene, isobutylphenoxyacetate, m-dimethoxybenzene, 3-oxobutanoicacid-1-methylethylester, ethyl2-(cyclohexylmethyl)-3-oxobutanoate, 5-ethyldihydro-2(3h)-furanone, 2-isopropyl -n,2,3-trimethylbutyramide, 4-(4-methylpiperidino)pyridine, 3-oxaspiro-undecan-2-one, formicacidhexylester, methyl 2,2-dimethyl-4,6-dioxocyclohexanecarboxylate, ethyl 6-ethyl-2- methyl-4-oxocyclohex-2-ene-1-carboxylate, benzenepropanenitrile, 4,4-dimethyl-5,6,7,8-tetrahydro-1H-isochromen-3-one, ethyl 2,6-dimethyl-4-oxocyclohex -2-enecarboxylate, n,n-dimethyloctanamide, 1-(2,5-dimethylpyrrolidin-1-yl)pentan-1-one, gamma-butyrolactone, t-butylacetoacetate, 4-(methoxymethyl)anisole, mintlactone, 2-methoxyethylacetoacetate , p-(2,2-dimethoxyethoxy)anisole, 1-(1-ethylpropyl)-2-pyrrolizinone, 2 ,5-dimethoxytetrahydrofuran, 2-acetoxy-1-ethoxypropane, 1,3-dimethyl-4-ethylcarbostyril, 1-(4-methoxyphenoxy)acetone, glycerol tripropionate, 3-dimethylaminoanisole, 2,4-dimethylbenzaldehyde, paraldehyde, glycerol tributyrate, 2,3,4,5-tetramethoxytoluene, 1,3,3-trimethyl-2h-quinolin-4-one, 3-cyclohexene-1-carboxaldehyde, isobutylsalicylate, 2-(1-methylpropyl)phenyl methylcarbamate, (2,2 -diethoxyethoxy)benzene, methyl 3-(5-oxooxolan-2-yl)propanoate, 4-acetoxy-2,5-dimethyl-3(2h)-furanone, 3-ethylchroman-2-one, ethyl 3-cyclohexyl-3 -oxopropanoate, 1-propyl-2(1h)-pyridinone, 7-methyl-4,4a,5,6-tetrahydro-3H-naphthalen-2-one, 1-(3,5-dimethylphenoxy)propan-2-one , ethyl 3-(2,5,5-trimethyl-1,3-dioxan-2-yl)propanoate, 1-tetralone, 4-methyl-3-penten-2-one, 1-tert-butylpyrrolidin-2-one , methyl 2-(4-(tert-butyl)phenoxy)acetate, 2,6,10,10-tetramethyl-1-oxaspiro(4,5)deca-2,6-dien-8-one, ethyl 4-ethoxybenzoate , maltyl isobutyrate, 4-methyl-1,3-dioxane, 2-acetylpyridine, 1,4-diethoxybenzene, 1-(2,2-diet hoxyethoxy)-4-methylbenzene, cyclohexyl lactone, 2-(2-butoxyethoxy)ethyl acetate, n-methylbenzamide, 3-acetyl-5-propyldihydrofuran-2(3h)-one, 2,2-diethoxyethoxymethylbenzene, n-methyl-m -tolylcarbamate, ethylene glycol dibutyrate, 4-cyano-2-fluorobenzoyl chloride, 3,6-dimethyl-2,3,3a,4,5,7a-hexahydro-1-benzofuran-2-one, ethyl 2-(2- oxocyclohexyl)acetate, 4-(2-acetoxyethoxy)toluene, 4-(2,5-dimethylpyrrol-1-yl)-2,6-dimethylmorpholine, 1-butylpyridin-2(1h)-one, n,n-dimethyldecanamid, valeraldehyde, 2-(3-pyridyl)piperidine, 4-methoxypropiophenone, 4-tert-butyl-n,n-dimethylbenzamide, acetylacetone, ethyl 2-methyl-2-phenoxypropanoate, ethyl 2-acetyl-5-oxohexanoate, n-sec -isopentylpyrrolidone, 4-methyl-1-tetralone, 2-butoxyethanolacetate, isobutyric anhydride, n-hexyl-2-pyrrolidinone, 3-benzyl-2,4-pentanedione, ethyl 5-oxodecanoate, methyl 2-hexyl-3-oxocyclopentanecarboxylate, 8-ethyl-1-oxaspiro[4.5]decan-2-one, n,n'-dibutylethyleneurea, methyl 3-oxododecanoate, 3-methyl-5-isopropyl-4-carbethox y-2-cyclohexene-1-one, 6-pentyl-2h-pyran-2-one, m-methoxyacetophenone, benzisoxazole, n,n-diethylnicotinamide, ethyl 3-(2-oxocyclohexyl)propanoate, propyl 4-ethoxybenzoate, 5 -butyl-5-ethyltetrahydro-2h-pyran-2-one, ethyl 2-oxo-1-propylcyclohexanecarboxylate, 2-propoxyethylacetate, dimethyl 2-methylglutarate, o-methylcorypalline, 1-pentylimidazole, n-formylmorpholine, methyl 2-butoxybenzoate, 7-butyloxepan-2-one, propanoic anhydride, acetophenone, 1-(3-methylpiperidin-1-yl)pentan-1-one, 1-butyl-2-methyl-imidazole, anisaldehyd diethyl acetal, 1-(2-methylpiperidin -1-yl)pentan-1-one, 5-butyl-5-ethyloxolan-2-one, 2,4,6-trimethylbenzaldehyde, n,n-diethylcyclohex-3-ene-1-carboxamide, butan-2-yl 4-methoxybenzoate, propylene glycol alpha methylbenzyl ether, 5-(benzyloxy)pentan-2-one, n,n-dimethyldodecanamide, n,n-diethyl-m-toluamide, (s)-dihydrobovolide, 3,4-dihydro-3 -oxoedulan, butyl 2-methoxybenzoate, 7-cyclohexyloxepan-2-one, dimethyl 1,4-cyclohexanedicarboxylate, delta-decalactone, ethyl 2, 5-dimethylphenoxyisobutyrate, 4a,8-dimethyl-3,4,5,6,7,8-hexahydronaphthalen-2-one, 5-hydroxy-2-decenoic acid lactone, ethyl 2-(2-oxooxolan-3-yl) acetate, methyloctalacton, 3-pentanone, 2,4-diacetylfuran, 2'-pentyloxyacetophenone, furfural, diethylmalonate, 1-(azepan-1-yl)butan-1-one, p-methoxyvalerophenone, n,n-diethylbenzamide, 4, 4-dimethylnaphthalen-1(4h)-one, gamma-decalactone, piperitone, ethylacetoacetate, 1-hexylimidazole, dihydromintlactone, 4-heptanone, dimethyl glutarate, 4-(benzyloxy)-4-methylpentan-2-one, 3,3- dimethyl-1-phenoxybutan-2-one, molinate, 7-methoxy-2,2-dimethylchromene, propiophenone, ethyl 2-benzoyl-3-methylbutanoate, n,n-diethyl-2-methylcyclohexane-1-carboxamide, 5-methyl -5-propyl-1,3-dioxan-2-one, 3-methyl-5-(2-oxopropyl)oxolan-2-one, 1-(azepan-1-yl)pentan-1-one, 2-( 2-ethoxyethoxy)-ethanolacetate, 2-methyl-1-(1-phenylethyl)imidazole, methyl 6-(diethylamino)-6-oxohexanoate, 5-undecanolide, 4-methyl-5-pentyloxolan-2-one, 2-ethoxyethylbenzoate , 3,4-dihydro-2(1h)-na phthalenone, 1-methoxy-3-(4-methylphenoxy)benzene, n,n-dihexylacetamide, dihydroactinidiolide, 1-pentanoylpiperidine, propan-2-yl 6-(dimethylamino)-6-oxohexanoate, 5,5-dimethyl-4- (3-oxobutyl)oxolan-2-one, 1-octylpyrrolidin-2-one, gamma-undecalactone, 4-ethoxyphenethylacetate, 2-hexanoylcyclohexan-1-one, gamma-methyldecalactone, 1-(azepan-1-yl)-3 -methylbutan-1-one, methyl dihydrojasmonate, p-methoxypivalophenone, 2-acetyl-4-tert-butylcyclohexan-1-one, 4,4-dibutyl-gamma-butyrolactone, 4-ethyl-2,6-dimethoxyphenol, n, n-diethylcyclohexanecarboxamide, 5-dodecanolide, 1-hexanoylpiperidine, 1-heptyl-1h-imidazole, 2-isopropoxyethylbenzoate, butanoic anhydride, methylacetoacetate, 2,3,3-trimethylindanone, 5-hexyl-4-methyldihydrofuran-2(3h)- one, phenoxyacetone, 1-propoxy-2-propanol, ethyl di-n-propylthiolcarbamate, 1,2-dimethoxy-4-methylbenzene, tetrahydrofurfurylpropionate, 2-pyrrolidon, 2-methoxypropyl acetate, 4-dodecanolide, 2-ethoxy-4- (methoxymethyl)phenol, n-isopentylpropionanilide, pentylp iperidine-1-carboxylate, 1-(2-ethylpiperidin-1-yl)butan-1-one, isopropyl 2-isopropoxy-benzoate, n,n-dibutylpentanamide, 2,3-dihydro-2,2-dimethyl-7- hydroxybenzofuran, 2-heptanone, 2-[2-(2-methoxypropoxy)propoxy]-1-propanol, 1,2,3,4,5,6,7,8-octahydro-2,8,8-trimethylnaphthalene-2 -carbaldehyde, cycloate, 4-methylquinoline, 5-nonanone, n,n-dipentylbutanamide, 3-dimethylamino-2-methylpropiophenone, 2-ethyl-1-pentanoylpiperidine, 4-(ethoxymethyl)-2-methoxyphenol, n,n-dibutylhexanamide , 2-ethylhexyllactate, tripropyleneglycolmonomethylether, magnolione, 1-octylimidazole, butylformate, butylate, 5-ethyl-2-(2-furyl)-4-propyl-m-dioxane, 1-methoxy-4-(2-methoxyethoxymethyl)benzene, hexylpiperidine-1-carboxylate, 4-propylcyclohexanone, 2,5,8,11,14,17-hexaoxaoctadecane, ethyl n,n-diethylsuccinamate, ethyl dipentylcarbamate, 2-butoxyethyl 4-methylbenzoate, 4'-pentylacetophenone, vernolate, 2- cyclopentyl cyclopentanone, 2-butoxyethylbenzoate, trimethoxymethane, phenoyethylpropionate, 4'-isobutylacetoph enone, 2-methylindole, n,n,2-triethylhexanamide, 2-methoxy-4-propylphenol, 3,5-bis(2-methylpropyl)cyclohexane-1,2-dione, 2,4-diethoxy-6-methylpyrimidine, ethyl-2-hydroxybenzoate, p-ethoxybenzaldehyde, glycerol triacetate, p-hexylacetophenone, n,n-diisopropyl-phenylacetamide, 3-ethylundecane-4,6-dione, 1-benzazine, methyl 5-methylsalicylate, n,n-dipropylheptanamide, 4-methylpyridine, 4-pentylcyclohexanone, 4-pyridinecarboxaldehyde, oxolan-2-yl methylheptanoate, 2-(2-(4-methylcyclohex-3-enyl)propyl)cyclopentanone, 2-isopropoxyphenol, octanophenon, 2-benzyl-4-methyl -1,3-dioxane, ethylbenzoate, 4-methyl-2-(2-methylpropyl)oxan-4-ol, 3-(diethylamino)propiophenone, benzylacetoacetate, isoamylbenzoate, pyridine, dichloromethane and 1,1,2,2-tetrachloroethane It may be any one selected from, but is not limited thereto.

In one embodiment of the present specification, the non-solvent is any one of an alcohol-based solvent, a ketone-based solvent, an ester-based solvent, an ether-based solvent, a polar aprotic solvent, a hydrocarbon solvent, and a halogen-containing solvent.

In one embodiment of the present specification, the non-solvent has a PVC swelling score value greater than 0 according to Equation 1, and is selected in consideration of the solubility difference between the good solvent and polyvinyl chloride used together. The non-solvent is propanol, diethylether, n-heptane, hexane, 1,4-butadiol, octane, cyclopentane, propyleneglycol, dimethylsulfoxide, methanol, ethanol, 2-propanol, 2,4-dimethylhexane, 3-ethyl-2,4-dimethylpentane , 2,7-dimethyloctane, 2,6-dimethyl-heptane, 2-methyl-3-ethylpentane, 3,3-dimethylhexane, 2,3,5-trimethylhexane, 2,3,4-trimethylpentane, 2,2-dimethylheptane , 3,3-dimethylpentane, 1,1,1,2,2,3,3,4,4-nonafluorotetracosane, 2,5-dimethylhexane, 2,2-dimethylhexane, 2,3,3-trimethylpentane, formicacid, 2 ,2,6-trimethylheptane, 2,2,4-trimethylhexane, 2,2,3-trimethylpentane, 2,3,3,4-tetramethylpentane, 2,4,4-trimethylhexane, 1-hydroxybenzotriazole, 3-ethyl-2 ,2-dimethyl-pentane, 2,2,4,6,6-pentamethylheptane, 2,2,5-trimethylhexane, 2-nitroethanol, 2,2,3,4-tetramethylpentane, octamethyltrisiloxane, 2,2,3,3 -tetramethylhexane, 1,5-pentanediol, 1,1,1,2,2,3,3-heptafluoroundecane, 2,2,5,5-tetramethylhexane, 2,2,3,3-tetramethylpentane, 2,2,4 -trimethylpentane, 2,2,4,4-tetramethylpentane, dodecamethylcyclohexas iloxane, acetaldehydeammonia, 1,1,1,2,2,3,3,4,4-nonafluorohexadecane, dodecamethylpentasiloxane, 1,1,1,2,2,3,3-heptafluorononane, 1,3-dioxolan-2- one, decamethyltetrasiloxane, 1-(perfluorohexyl)docosane, hexamethyldisilane, 1,1,1,2,2,3,3,4,4,5,5-undecafluorononadecane, tetradecamethylhexasiloxane, 1,1,1,2,2,3 ,3,4,4,5,5,6,6-tridecafluorohexacosane, 1,1,1,2,2,3,3,4,4-nonafluorooundecane, 1,1,1,2,2,3,3 ,4,4-nonafluorododecane, hexadecamethylheptasiloxane, 1,1,1,2,2,3,3,4,4,5,5,6,6-tridecafluorotetracosane, propynol, 1,1,1,2,2,3 ,3,4,4-nonafluorodecane, ethanolamine, 1,1,1,2,2,3,3,4,4,5,5,6,6-tridecafluorodocosane, 2-hydroxypropanenitrile, 1,1,1,2 ,2,3,3,4,4,5,5,6,6-tridecafluoroicosane, 1,1,1,2,2,3,3,4,4-nonafluorononane, 1,1,1,2,2 ,3,3,4,4,5,5,6,6-tridecafluorooctadecane, cis-2-butene-1,4-diol, 1,1,1,2,2,3,3,4,4,5 -decafluorononane, 1,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8-heptadecafluorooctacosane, 1,1,1,2,2,3 ,3,4,4,5,5,6,6-tridecafluorohexadecane, 1,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8 -heptadecafluorohex acosane, 1,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8-heptadecafluoropentacosane, 1,1,1,2,2,3, 3,4,4,5,5,6,6-tridecafluoropentadecane, 1,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8- heptadecafluorotetracosane, 1-(perfluorohexyl)octane, 1,1,1,2,2,3,3,4,4,5,5-undecafluorodecane, 1,1,1,2,2,3,3,4,4 ,5,5,6,6-tridecafluorotridecane, 1,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8-heptadecafluorodocosane, 1h,8h -hexadecafluorooctane, 1,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10-henicosafluorotriacontane, hexacosamethyldodecasiloxane, 1 ,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8-heptadecafluoroicosane, 1,1,1,2,2,3,3,4 ,4,5,5,6,6-tridecafluorododecane, 1,3-propanediol, 1,1,1,2,2,3,3,4,4,5,5,6,6-tridecafluorooundecane, 1,1 ,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8-heptadecafluorononadecane, 1,1,1,2,2,3,3,4,4 ,5,5,6,6,7,7,8,8,9,9,10,10-henicosafluorononacosane, 1,1,1,2,2,3,3,4,4,5,5,6 ,6,7,7,8,8-heptadecafluorooctadecane, 1,1,1,2,2,3,3,4,4,5,5,6,6,7,7-pentadecafluorotetradecane, 1,1,1 ,2,2,3,3,4,4,5,5,6-dodecafluorononane, 1,1,1,2,2,3,3,4,4,5,5-undecafluorooctane, 1,1,1,2,2,3,3,4,4,5,5,6,6,7,7-pentadecafluorotridecane, 1-perfluorooctyloctane, 1,1,1,2,2,3,3, 4,4,5,5,6,6-tridecafluorodecane, 1,1,1,2,2,3,3,4,4,13,13,14,14,15,15,16,16,16- octadecafluorohexadecane, 1,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8-heptadecafluoropentadecane, 1,1,1,2,2,3, 3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12-pentacosafluorohentriacontane, formicin, 1,1,1,2, 2,3,3,4,4,5,5,6,6,7,7,8,8-heptadecafluorotetradecane, 1-(henicosafluorodecyl)undecane, 1,1,1,2,2,3,3,4 ,4,5,5,6,6,7,7,8,8-heptadecafluorotridecane, 1,1,1,2,2,3,3,4,4,5,5,6,6,7,7 ,8,8,9,9,10,10,11,11,12,12-pentacosafluorooctacosane, ethylenecyanohydrin, 1,1,1,2,2,3,3,4,4,5,5,6,6 ,7,7,8,8,9,9,10,10-henicosafluoroicosane, 1,1,1,2,2,3,3,4,4,5,5,6,6-tridecafluorooctane, perfluorooctylbromide, 1 ,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10-henicosafluorooctadecane, 1,1,1,2 ,2,3,3,4,4,5,5,6,6,7,7,8,8-heptadecafluorododecane, 1,1,1,2,2,3,3,4,4,5,5 ,6,6,7,7,8,8,9,9,10,10,11,11,12,12-pentacosafluorotetracosane, pentacosafluorotricosane, 1-(perfl uorohexyl)propane, 1,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10-henicosafluoropentadecane, 1, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8-heptadecafluorodecane, 1,1,1,2,2,3,3,4, 4,5,5,6,6,7,7,8,8,9,9,10,10-henicosafluorotetradecane, 1,1,1,2,2,3,3,4,4,5,5, 6,6,7,7,8,8,9,9,10,10,11,11,12,12-pentacosafluorooctadecane, 1,1,1,2,2,3,3,4,4,5, 5,6,6,7,7,8,8,9,9,10,10-henicosafluorotridecane, 1,1,1,2,2,3,3,4,4,5,5,6,6, 7,7,8,8,9,9,10,10-henicosafluorododecane, glycol, tetratriacontafluorotetracosane, glycerol, 1,1,1,2,2,3,3,4,4,5,5,6,6, 7,7,8,8,9,9,10,10,11,11,12,12-pentacosafluorotetradecane, methylhydroperoxide, H ₂ O, 4-hydroxymethyl-1,3-dioxolan-2-one, hydroxyacetonitrile, perfluorooctane, cis-perfluorodecalin, methanesulfonicacid, formamide, 4-methylphenol, PBr3, H ₂ O ₂ , BBr3, methylbutane, 2,2-dimethylbutane, 2,2,3-trimethyl-butane, 2,2-dimethylpentane, 2,3-dimethylbutane , pentane, 2,4-dimethylpentane, 2-methylpentane, 2-methylhexane, 3-methylpentane, 3-methyl-hexane, 3-ethylpentane, 3-ethyl-3-methylpenta ne, 2-methylheptane, 3,3-diethylpentane, 3-methylheptane, 2-methyloctane, 4-methylheptane, 3-ethylheptane, 2-methyl-nonane, 3-methyloctane, 4-methyloctane, 2-methyldecane, 3-methyl- nonane, 1,1,3,3-tetramethylcyclopentane, 1,3-butanediol, 4-methyldecane, 5-methyl-nonane, 4-methyl-nonane, 1,1-dimethylcyclopentane, 1,1,2-trimethylcyclopentane, 1, 1,2-trimethylcyclohexane, n-decane, n-nonane, isobutylcyclopentane, (1-methylethyl)-cyclopentane, tert-butylcyclohexane, pentadecane, tridecane, 1,1,3-trimethylcyclopentane, 1,1,3-trimethylcyclohexane, nonadecane, heptadecane, octadecane, ethylcyclopentane, dodecane, n-undecane, propylcyclopentane, isobutylcyclohexane, isopropylcyclohexane, 1-ethyl-1-methylcyclopentane, 2,3,3-trimethyl-1-butene, 2,4,4-trimethyl-1-pentene, n-hexylcyclopentane, pentylcyclopentane, 1-isopropyl-4-methylcyclohexane, trimethylaluminum, n-tetradecylcyclopentane, tridecylcyclopentane, tetradecane, n-dodecylcyclopentane, n-decylcyclopentane, n-propylcyclohexane, ethylcyclo hexane, 3,3-dimethyl-1-butene, n-hexadecane, pentene, 2,3,3-trimethyl-1-pentene, decylcyclohexane, pentylcyclohexane, 3,4-dicyclohexyl-2,5-dimethylhexane, 2-methyl- 1-butene, 3,3-dimethyl-1-pentene, 4,4-dimethyl-1-pentene, butylcyclohexane, methylcyclopentane, methylcyclohexane, decahydronaphthalene, hexahydroindene, bicyclohexyl, cyclohexane, 2,4,4-trimethyl-2-pentene, 2,3-dimethyl-1-pentene, tricyclohexylmethane, butylcyclopentane, 1-hexene, 2,3-dimethyl-1-butene, methylformamide, 3,3-dimethyl-1-butyne, triethyleneglycol, 3-methoxy-1,2- propanediol, 2,4-dimethyl-1-pentene, 1-heptene, 3-methyl-1-pentene, 3-ethyl-2-methyl-1-pentene, 1,4-bis(1,1-dimethylethyl)-benzene , diethyleneglycol, octane, methoxyaceticacid, 1-nonene, 4-methyl-1-hexene, 1,2,3,4-tetrahydro-1,1,3,4,4,6-hexamethylnaphthalene, 1,3,5-triisopropylbenzene , 1,2,2,6,6-pentamethylpiperidine, 1,4-diethylbenzene, 2-methyl-2-butene, isoprene, 4-methyl-1-pentene, 1-tetradecene, 3-ethyl-1-pentene, 2 -methyl-3-heptene, 1-decene, 2,3, 4-trimethyl-2-pentene, 1-nonadecene, butylbenzene, 2-ethoxy-2-methyl-propane, 1,2-diethylbenzene, ethanedial, cyclohexylbenzene, galaxolide, 1,2,3,4-tetramethylbenzene, 1,2, 3,5-tetramethylbenzene, pentaethylbenzene, 1,3,5-trimethylbenzene, isobutanol, peroxyaceticacid, 1,6-hexanediol, 2,6-di-tert-butyl-4-methylpyridine, 2,2'-(methylimino)bis- ethanol, 1,3-bis(1-methylethyl)-benzene, 2,7-diisopropylnaphthalene, 1,2,3,5-tetraethylbenzene, tetrahydro-2,2,5,5-tetramethylfuran, 1,5-diisopropylnaphthalene, 2 ,3-butanediol, 1,2-diisopropylbenzene, benzene, 1-pentan-2-yl-4-pentan-3-ylbenzene, tetradecylbenzene, pentadecylbenzene, ethylbenzene, 3,6-bis-(methoxymethyl)-durene, himachalen_gamma, 1 -(1,1-dimethylethyl)-3-methylbenzene, tridecylbenzene, 1-(methoxymethyl)-4-(244-trimethylpentan-2-yl)benzene, dodecylbenzene, 1,2,4-trimethylbenzene, 1-cyclohexyl-2- isopropylbenzene, dl-pin-2(3)-ene, 2,6-di-tert-butylpyridine, 1,1'-oxybis-octane, 1,5-hexanediol, 1-(1,1-dimethylethyl)-3, 5-dimethylbenzene, m enthylisovalerate, 1-methyl-7-(1-methylpropyl)naphthalene, tert-butanol, himachalen_beta, dimethoxymethane, 1,2,3,4,5,6,7,8-octahydroanthracene, (1,1-dimethylethyl)benzene, 1,2-hexanediol, cyclohexene, perhydrofarnesylacetone, delta-cadinene, isopropylbenzene, undecylbenzene, 2,5-hexanediol, dipropyleneglycol, 1,6-dimethyl-4-isopropyltetralin, di-n-propylether, diisopropylether, cuparen, 1,4- Any one selected from bis(1-methylethyl)-benzene, 2,4-dimethyl-3-thiapentane, 1-methoxy-4-(2,4,4-trimethylpentan-2-yl)benzene, 1-ethoxybutane, decylbenzene and cycloheptane It may be one, but is not limited thereto.

Another embodiment of the present specification provides recycled polyvinyl chloride obtained by filtering the above-described composition.

In another embodiment of the present specification, most of the polyvinyl chloride extracted by the good solvent from the waste containing polyvinyl chloride in the waste polyvinyl chloride recycling composition is precipitated by the non-solvent and is in a solid state. can be submerged with Recycled polyvinyl chloride can be obtained by filtering the composition containing the precipitated polyvinyl chloride.

In another embodiment of the present specification, the recycled polyvinyl chloride includes both a state in which the composition is filtered, or a state in which excess solvents are removed by drying after filtering.

In one embodiment of the present specification, the recycled polyvinyl chloride includes additives derived from waste. At this time, the additive derived from the waste is not particularly limited as long as it is an additive that has been added to produce the waste, but includes, for example, a plasticizer. When producing a product using the recycled polyvinyl chloride, additives such as plasticizers are already included, so there is an advantage in that additives such as plasticizers are not added or the amount of additives can be reduced.

In one embodiment of the present specification, the waste is not particularly limited as long as it contains PVC, but for example, construction materials (pipes, window frames, etc.) containing PVC, wire coatings, synthetic leather, rubber basins, hoses, flooring materials , packaging materials, medical infusion bags, toys, and the like.

In one embodiment of the present specification, the recycled polyvinyl chloride is PVC extracted by solvent extraction, and during extraction with a solvent, low molecular weight PVCs are filtered to have an average molecular weight greater than PVC produced by polymerization or PVC in waste. it rises In addition, since the average molecular weight of PVC changes, dynamic physical properties affected by the average molecular weight, such as its glass transition temperature (Tg) and melting temperature (Tm), change, so as the average molecular weight of PVC increases, the glass transition temperature (Tg), Dynamic properties such as melting temperature (Tm) also increase.

Another embodiment of the present specification includes the steps of selecting a good solvent and non-solvent for polyvinyl chloride extraction using the above-described solvent screening method; contacting the waste containing the polyvinyl chloride with the good solvent and dissolving the polyvinyl chloride in the waste with the good solvent to obtain a polyvinyl chloride solution (hereinafter referred to as a dissolution process); and precipitating polyvinyl chloride from the dissolving solution by contacting the dissolving solution with the non-solvent (hereinafter, referred to as a precipitation process). .

In the present specification, the method of recycling wastes The description of the step of selecting a good solvent and non-solvent for polyvinyl chloride extraction may refer to the above-described screening method for a solvent for extraction of PVC.

In one embodiment of the present specification, the step of extracting the polyvinyl chloride may include polyvinyl chloride, further comprising a separation step of separating solids from the polyvinyl chloride solution obtained in the dissolution step. At this time, the solid content is a solid that does not dissolve in a good solvent for polyvinyl chloride, and corresponds to an impurity.

In one embodiment of the present specification, the step of extracting the polyvinyl chloride may further include a rinsing process of rinsing the polyvinyl chloride precipitated by the precipitation process.

In one embodiment of the present specification, the step of extracting the polyvinyl chloride may further include a drying process of drying the polyvinyl chloride precipitated by the precipitation process.

Hereinafter, the present specification will be described in more detail through examples. However, the following examples are only for exemplifying the present specification, and are not intended to limit the present specification.

[Example]

A solution was prepared by adding a PVC waste sample to the good solvent in Table 1 and stirring at 120 rpm for 3 hours at room temperature. Then, PVC was precipitated by dropping the non-solvent of Table 1 below into the solution. At this time, the weight ratio of waste PVC:good solvent:non-solvent is 1:5:20.

After all the non-solvent was dropped, the reaction solution was filtered through a filter to obtain a filtered solid. The filtered solid was additionally washed with the same non-solvent as the non-solvent and dried to obtain recycled PVC.

good solvent non-solvent sample (g) Recovery (g) PVC recovery rate Example 1 cyclohexanone 2-propanol 15 8.1 39% Example 2 octene 20 9.5 66% Example 3 hexane 20 10.1 66% Example 4 diethylether 20 5.9 35% Example 5 n,n-dimethylpropanamide 2-propanol 15 12.6 50% Example 6 octene 25 15.2 82% Example 7 hexane 25 13 74% Example 8 diethylether 20 5.6 41% Example 9 dichloromethane 2-propanol 50 21.8 22% Example 10 octene 20 6.6 27% Example 11 Hexane 20 3.4 32% Example 12 diethylether 20 1.7 13%

In Table 1, sample (g) means the weight of the PVC waste sample initially introduced.

The PVC swelling score values of the solvents used in Table 1 are shown in Table 2 below. Looking at Table 1 with reference to the PVC swelling score values in Table 2, in the case of dichloromethane, since the PVC swelling score is higher than that of cyclohexane or n,n-dimethylpropanamide, the degree of PVC swelling is lowered, so it can be seen that the recovery rate is generally low. In the case of n,n-dimethylpropanamide, it can be confirmed that the overall recovery rate is high because the PVC swelling ratio is the best.

PVC swelling score value division Cyclohexanone -0.641 good solvent n,n-dimethylpropanamide -0.902 good solvent dichloromethane -0.290 good solvent 2-propanol 2.261 non-solvent Octene 1.910 non-solvent Hexane 2.170 non-solvent diethylether 0.849 non-solvent

Claims (13)

Selecting a good solvent for extracting the polyvinyl chloride from waste containing polyvinyl chloride as one of solvents having a PVC swelling score value of 0 or less according to Equation 1 below; and
Screening of a solvent for extracting polyvinyl chloride comprising the step of selecting any one of the solvents having a PVC swelling score value greater than 0 according to Equation 1 below as a non-solvent for extracting the polyvinyl chloride from waste containing polyvinyl chloride method:
[Equation 1]

In Equation 1 above,
x ₁ , x ₂ , x ₃ and x ₄ are real numbers from 0 to 5, respectively;
Dipole is the dipole moment of a solvent molecule,
Asphericity is the asphericity of solvent molecules,
dH is the Hansen solubility parameter for hydrogen bonding of solvent molecules,
Polar Surface Area is a fractional polar surface area. The method according to claim 1, wherein the difference between the PVC swelling score value of the good solvent and the PVC swelling score value of the non-solvent is 1.5 or more. The method of claim 1, wherein the good solvent has a boiling point of 85° C. or higher. polyvinyl chloride extracted from waste containing polyvinyl chloride;
A good solvent of any one of the solvents having a PVC swelling score value of 0 or less according to Formula 1 below; and
A waste polyvinyl chloride recycling composition comprising any one non-solvent among solvents having a PVC swelling score value greater than 0 according to Equation 1 below:
[Equation 1]

In Equation 1 above,
x ₁ , x ₂ , x ₃ and x ₄ are real numbers from 0 to 5, respectively;
Dipole is the dipole moment of a solvent molecule,
Asphericity is the asphericity of solvent molecules,
dH is the Hansen solubility parameter for hydrogen bonding of solvent molecules,
Polar Surface Area is a fractional polar surface area. The waste polyvinyl chloride recycling composition according to claim 4, wherein a difference between the PVC swelling score of the good solvent and the PVC swelling score of the non-solvent is 1.5 or more. The waste polyvinyl chloride recycling composition according to claim 4, wherein the boiling point of the good solvent is 85° C. or higher. The method according to claim 4, wherein the good solvent and the non-solvent are each independently any one of an alcohol-based solvent, a ketone-based solvent, an ester-based solvent, an ether-based solvent, a polar aprotic solvent, a hydrocarbon solvent, and a halogen-containing solvent. Polyvinyl chloride recycling composition. The method according to claim 4, wherein the good solvent is n, n-dimethylacetamide, cyclopentanone, 2-pentanone, dioxane, nitrobenzene, ethylacetate, benzene, trichlorethylene, 1,2-dichloroethane, chloroform, cyclohexanone, tetrahydrofuran, 2-butanone, acetone, 4- methylpentan-2-one, 1,2,3-propanetrioltrinitrate, tetramethylenesulfoxide, 1-piperidinecarboxaldehyde, 1-acetylpiperidine, n-methyl-2-pyrrolidinone, 1,4-dimethylpyrrolidone, 1,3-dimethyl-2-imidazolidinone, 1, 5-dimethylpyrrolidone, hexamethylphosphoramide, dimethylpropyleneurea, 1-ethyl-2-pyrrolidone, 1,3-dimethylpyrrolidone, 4-acetylmorpholine, 1-[ethoxy(methyl)phosphoryl]methylpiperidine, n,n-dimethylpropanamide, tributylphosphineoxide, 1-propyl-2 -pyrrolidinone, n-isopropylpyrrolidone, n,n,4-trimethylbenzamide, n-methyl-o-acetotoluidide, 2-cyclohexen-1-one, n,n,3-trimethylbenzamide, n,n-dimethylbenzamide, trimethylenesulfide, n,n ,2-trimethylbenzamide, 1,3-dioxane, tetramethylurea, 2-azacyclooctanone, 4-methyl-1-propyl-2-pyrrolidinone, 5-methyl-1-propyl-2-pyrrolidin one, n,n-diethylacetamide, 1,3-propanedithiol, 4,5-dihydro-2-methylthiazole, pyrrolidine, 3-methoxy-n,n-dimethylpropanamide, 4-fluoro-n,n-dimethylbenzamide, cycloheptanone, 1- morpholinopentan-1-one, 3-methylcyclohexanone, n,n-dimethylbutanamide, caprolactam, tetrahydrothiophene, 2-methoxy-n,n-dimethylbenzamide, dimethylformamide, 1,2-ethanedithiol, 1,4,7,10-tetraoxacyclododecane, ethyl 1 ,3-dimethyl-2-oxopyrrolidine-3-carboxylate, 1-(4-methylpiperidyl)butan-1-one, 2-methylcyclohexanone, 1-(2,6-dimethylmorpholin-4-yl)butan-1-one, n ,n-diethylformamide, 4-(propan-2-yl)phenyldimethylcarbamate, n,n-dimethyl-3-phenylpropanamide, n-(1-methyl-2-methoxyethyl)-n-chloroacetyl-2-ethyl-6-methylaniline, dichloroacetylchloride, n,n-diethyl-3-(2-methyl-1,3-dioxolan-2-yl)propanamide, n-acetylcaprolactam, d-camphor, n-methylformanilide, ethyl n-acetyl-n-ethyl-beta- alaninate, (2,5-dimethoxyphenyl)acetaldehyde, 4-methylcyclohexanone, 2,6-dimethyl-2,5-cyclohexadiene-1,4-dione, 4-vinylcyclohexene dioxide, ni cotine, 2-methylcyclopentanone, dimethylveronal, diethyl(trichloromethyl)phosphonate, 3-methyl-6-isopropylidenecyclohexanone, 1-heptanoyl-4-methylpiperazine, n,n-diethyl-4-oxopentanamide, n-ethyl-n-phenylacetamide, dimethyldisulfide, 4,6-dimethylpyrimidine, 1,4-oxathiane, n-sec-butylpyrrolidone, 1-(4-methylpiperidin-1-yl)pentan-1-one, 1-butyl-5-methyl-2-pyrrolidinone, 3-methyl -2-oxazolidone, n,n-dimethyl-4-(propan-2-yl)benzamide, 2,5-dimethylpyrazine, mesitenelactone, propyl 4-(dimethylamino)-4-oxobutanoate, diethyldimethylamidophosphate, isophorone, n,n-dimethyl 4-methoxybenzamide, 1,2,3,5-tetramethoxybenzene, 3,4,5-trimethoxytoluene, caprolactone, 3-methyl-piperidin-2-one, 2-ethylhexylsalicylate, ethyl 3-ethyl-2-oxooxolane-3-carboxylate , 1-ethyl-3,5,7-trimethyl-1,3-dihydro-azepin-2-one, dimethylisosorbide, cyclotenebutyrate, ethyl 2-(2-methoxyphenoxy)acetate, cyrene, 2,4,4-trimethyl-6 -oxocyclohex-1-en-1-yl acetate, 1,2-benzodihydropyrone, tripropyleneglycolethyletherisomer, 3,4-dimet hoxypropiophenone, methylaminoacetaldehydedimethylacetal, methyl 2,6-dimethoxybenzoate, 1,3-dimethyl-1,2,3,4-tetrahydro-4-quinolinone, ethyl 3,5-dimethoxybenzoate, 4-methoxybenzaldehyde, ethyl (4-methylphenoxy)acetate, 2,3,4-trimethoxyacetophenone, ethylimidazole, methyl 2-oxocyclooctanecarboxylate, ethyl 2-methyl-4-oxocyclohex-2-enecarboxylate, 2',5'-dimethoxyacetophenone, isobutylformate, ethyl 2-(2,6-dimethylphenoxy)acetate, ethyl 2-(benzyloxy)acetate, hexylacetoacetate, diethylglutarate, 4-carbethoxy-2-ethyl-3-methyl-2-cyclohexen-1-one, nepetalactone, tripropyleneglycolbutylether, ethyl 5,5-dimethyl-2-oxofuran-3-carboxylate , 2-ethoxybenzaldehyde, methyl-2,4-dimethoxybenzoate, 5,5-diethyl-4-methoxyfuran-2(5h)-one, ethyl 4,6-dimethyl-2-oxo-3,4-dihydro-2h-pyran -5-carboxylate, ethyl 4-phenoxybutanoate, 2,5-dimethoxypropiophenone, ethyl 5,5-dimethyl-2-oxotetrahydrofuran-3-carboxylate, ethyl 3-(5-oxotetrahydrofuran-2-yl)propanoate, benzylsalicylate, n,n -diethyl-4-methyl-4h-pyridine-1-car boxamide, p-tolylacetonitrile, 5-methyl-2(3h)-furanone, 1-methyl-2-(3-pyridyl)pyrrole, formicacidpentylester, ethyl 4-(dimethylamino)benzoate, n-butylacetamide, 4-methylbenzaldehyde, 3' ,4'-dimethoxyisobutyrophenone, benzaldehyde, 1,2,4-triethoxybenzene, isobutylphenoxyacetate, m-dimethoxybenzene, 3-oxobutanoicacid-1-methylethylester, ethyl2-(cyclohexylmethyl)-3-oxobutanoate, 5-ethyldihydro-2(3h)-furanone , 2-isopropyl-n,2,3-trimethylbutyramide, 4-(4-methylpiperidino)pyridine, 3-oxaspiro-undecan-2-one, formicacidhexylester, methyl 2,2-dimethyl-4,6-dioxocyclohexanecarboxylate, ethyl 6- ethyl-2-methyl-4-oxocyclohex-2-ene-1-carboxylate, benzenepropanenitrile, 4,4-dimethyl-5,6,7,8-tetrahydro-1H-isochromen-3-one, ethyl 2,6-dimethyl -4-oxocyclohex-2-enecarboxylate, n,n-dimethyloctanamide, 1-(2,5-dimethylpyrrolidin-1-yl)pentan-1-one, gamma-butyrolactone, t-butylacetoacetate, 4-(methoxymethyl)anisole, mintlactone , 2-methoxyethylacetoacetate, p-(2,2-dimethoxyethoxy)anisole, 1-(1-ethylpropyl)-2-pyrr olizinone, 2,5-dimethoxytetrahydrofuran, 2-acetoxy-1-ethoxypropane, 1,3-dimethyl-4-ethylcarbostyril, 1-(4-methoxyphenoxy)acetone, glycerol tripropionate, 3-dimethylaminoanisole, 2,4-dimethylbenzaldehyde, paraldehyde, glycerol tributyrate, 2,3,4,5-tetramethoxytoluene, 1,3,3-trimethyl-2h-quinolin-4-one, 3-cyclohexene-1-carboxaldehyde, isobutylsalicylate, 2-(1-methylpropyl)phenyl methylcarbamate, ( 2,2-diethoxyethoxy)benzene, methyl 3-(5-oxooxolan-2-yl)propanoate, 4-acetoxy-2,5-dimethyl-3(2h)-furanone, 3-ethylchroman-2-one, ethyl 3- cyclohexyl-3-oxopropanoate, 1-propyl-2(1h)-pyridinone, 7-methyl-4,4a,5,6-tetrahydro-3H-naphthalen-2-one, 1-(3,5-dimethylphenoxy)propan- 2-one, ethyl 3-(2,5,5-trimethyl-1,3-dioxan-2-yl)propanoate, 1-tetralone, 4-methyl-3-penten-2-one, 1-tert-butylpyrrolidin- 2-one, methyl 2-(4-(tert-butyl)phenoxy)acetate, 2,6,10,10-tetramethyl-1-oxaspiro(4,5)deca-2,6-dien-8-one, ethyl 4-ethoxybenzoate, maltyl isobutyrate, 4-methyl-1,3-dioxane, 2-acetylpyridine, 1,4-diethoxybenzene, 1-(2,2-diethoxyethoxy)-4-methylbenzene, cyclohexyl lactone, 2-(2-butoxyethoxy)ethyl acetate, n-methylbenzamide, 3-acetyl-5-propyldihydrofuran-2(3h)-one, 2,2- diethoxyethoxymethylbenzene, n-methyl-m-tolylcarbamate, ethylene glycol dibutyrate, 4-cyano-2-fluorobenzoyl chloride, 3,6-dimethyl-2,3,3a,4,5,7a-hexahydro-1-benzofuran-2-one , ethyl 2-(2-oxocyclohexyl)acetate, 4-(2-acetoxyethoxy)toluene, 4-(2,5-dimethylpyrrol-1-yl)-2,6-dimethylmorpholine, 1-butylpyridin-2(1h)-one , n,n-dimethyldecanamid, valeraldehyde, 2-(3-pyridyl)piperidine, 4-methoxypropiophenone, 4-tert-butyl-n,n-dimethylbenzamide, acetylacetone, ethyl 2-methyl-2-phenoxypropanoate, ethyl 2-acetyl- 5-oxohexanoate, n-sec-isopentylpyrrolidone, 4-methyl-1-tetralone, 2-butoxyethanolacetate, isobutyric anhydride, n-hexyl-2-pyrrolidinone, 3-benzyl-2,4-pentanedione, ethyl 5-oxodecanoate, methyl 2 -hexyl-3-oxocyclopentanecarboxylate, 8-ethyl-1-oxaspiro[4.5]decan-2-one, n,n'-dibutylethyleneurea, methyl 3-oxododecanoate, 3-methyl-5-isopropyl -4-carbethoxy-2-cyclohexene-1-one, 6-pentyl-2h-pyran-2-one, m-methoxyacetophenone, benzisoxazole, n,n-diethylnicotinamide, ethyl 3-(2-oxocyclohexyl)propanoate, propyl 4- ethoxybenzoate, 5-butyl-5-ethyltetrahydro-2h-pyran-2-one, ethyl 2-oxo-1-propylcyclohexanecarboxylate, 2-propoxyethylacetate, dimethyl 2-methylglutarate, o-methylcorypalline, 1-pentylimidazole, n-formylmorpholine, methyl 2 -butoxybenzoate, 7-butyloxepan-2-one, propanoic anhydride, acetophenone, 1-(3-methylpiperidin-1-yl)pentan-1-one, 1-butyl-2-methyl-imidazole, anisaldehyd diethyl acetal, 1-( 2-methylpiperidin-1-yl)pentan-1-one, 5-butyl-5-ethyloxolan-2-one, 2,4,6-trimethylbenzaldehyde, n,n-diethylcyclohex-3-ene-1-carboxamide, butan- 2-yl 4-methoxybenzoate, propylene glycol alpha methylbenzyl ether, 5-(benzyloxy)pentan-2-one, n,n-dimethyldodecanamide, n,n-diethyl-m-toluamide, (s)-dihydrobovolide, 3,4- dihydro-3-oxoedulan, butyl 2-methoxybenzoate, 7-cyclohexyloxepan-2-one, dimethyl 1,4-cyclohexanedicarboxylate, delta-decalacto ne, ethyl 2,5-dimethylphenoxyisobutyrate, 4a,8-dimethyl-3,4,5,6,7,8-hexahydronaphthalen-2-one, 5-hydroxy-2-decenoic acid lactone, ethyl 2-(2-oxooxolan -3-yl)acetate, methyloctalacton, 3-pentanone, 2,4-diacetylfuran, 2'-pentyloxyacetophenone, furfural, diethylmalonate, 1-(azepan-1-yl)butan-1-one, p-methoxyvalerophenone, n,n -diethylbenzamide, 4,4-dimethylnaphthalen-1(4h)-one, gamma-decalactone, piperitone, ethylacetoacetate, 1-hexylimidazole, dihydromintlactone, 4-heptanone, dimethyl glutarate, 4-(benzyloxy)-4-methylpentan-2-one , 3,3-dimethyl-1-phenoxybutan-2-one, molinate, 7-methoxy-2,2-dimethylchromene, propiophenone, ethyl 2-benzoyl-3-methylbutanoate, n,n-diethyl-2-methylcyclohexane-1- carboxamide, 5-methyl-5-propyl-1,3-dioxan-2-one, 3-methyl-5-(2-oxopropyl)oxolan-2-one, 1-(azepan-1-yl)pentan-1- one, 2-(2-ethoxyethoxy)-ethanolacetate, 2-methyl-1-(1-phenylethyl)imidazole, methyl 6-(diethylamino)-6-oxohexanoate, 5-undecanolide, 4-methyl-5-pentyloxolan-2- one, 2-ethoxyethylbenzoate, 3,4-dihy dro-2(1h)-naphthalenone, 1-methoxy-3-(4-methylphenoxy)benzene, n,n-dihexylacetamide, dihydroactinidiolide, 1-pentanoylpiperidine, propan-2-yl 6-(dimethylamino)-6-oxohexanoate, 5 ,5-dimethyl-4-(3-oxobutyl)oxolan-2-one, 1-octylpyrrolidin-2-one, gamma-undecalactone, 4-ethoxyphenethylacetate, 2-hexanoylcyclohexan-1-one, gamma-methyldecalactone, 1-(azepan -1-yl)-3-methylbutan-1-one, methyl dihydrojasmonate, p-methoxypivalophenone, 2-acetyl-4-tert-butylcyclohexan-1-one, 4,4-dibutyl-gamma-butyrolactone, 4-ethyl-2 ,6-dimethoxyphenol, n,n-diethylcyclohexanecarboxamide, 5-dodecanolide, 1-hexanoylpiperidine, 1-heptyl-1h-imidazole, 2-isopropoxyethylbenzoate, butanoic anhydride, methylacetoacetate, 2,3,3-trimethylindanone, 5-hexyl-4- methyldihydrofuran-2(3h)-one, phenoxyacetone, 1-propoxy-2-propanol, ethyl di-n-propylthiolcarbamate, 1,2-dimethoxy-4-methylbenzene, tetrahydrofurfurylpropionate, 2-pyrrolidon, 2-methoxypropyl acetate, 4-dodecanolide , 2-ethoxy-4-(methoxymethyl)phenol, n-isopentylpropionanil ide, pentylpiperidine-1-carboxylate, 1-(2-ethylpiperidin-1-yl)butan-1-one, isopropyl 2-isopropoxy-benzoate, n,n-dibutylpentanamide, 2,3-dihydro-2,2-dimethyl- 7-hydroxybenzofuran, 2-heptanone, 2-[2-(2-methoxypropoxy)propoxy]-1-propanol, 1,2,3,4,5,6,7,8-octahydro-2,8,8-trimethylnaphthalene -2-carbaldehyde, cycloate, 4-methylquinoline, 5-nonanone, n,n-dipentylbutanamide, 3-dimethylamino-2-methylpropiophenone, 2-ethyl-1-pentanoylpiperidine, 4-(ethoxymethyl)-2-methoxyphenol, n,n -dibutylhexanamide, 2-ethylhexyllactate, tripropyleneglycolmonomethylether, magnolione, 1-octylimidazole, butylformate, butylate, 5-ethyl-2-(2-furyl)-4-propyl-m-dioxane, 1-methoxy-4-(2-methoxyethoxymethyl) benzene, hexylpiperidine-1-carboxylate, 4-propylcyclohexanone, 2,5,8,11,14,17-hexaoxaoctadecane, ethyl n,n-diethylsuccinamate, ethyl dipentylcarbamate, 2-butoxyethyl 4-methylbenzoate, 4'-pentylacetophenone, vernolate, 2-cyclopentyl cyclopentanone, 2-butoxyethylbenzoate, trimethoxymethane, phenoyethylpropionate, 4'-iso butylacetophenone, 2-methylindole, n,n,2-triethylhexanamide, 2-methoxy-4-propylphenol, 3,5-bis(2-methylpropyl)cyclohexane-1,2-dione, 2,4-diethoxy-6-methylpyrimidine, ethyl-2-hydroxybenzoate, p-ethoxybenzaldehyde, glycerol triacetate, p-hexylacetophenone, n,n-diisopropyl-phenylacetamide, 3-ethylundecane-4,6-dione, 1-benzazine, methyl 5-methylsalicylate, n,n-dipropylheptanamide, 4-methylpyridine, 4-pentylcyclohexanone, 4-pyridinecarboxaldehyde, oxolan-2-yl methylheptanoate, 2-(2-(4-methylcyclohex-3-enyl)propyl)cyclopentanone, 2-isopropoxyphenol, octanophenon, 2-benzyl-4-methyl -1,3-dioxane, ethylbenzoate, 4-methyl-2-(2-methylpropyl)oxan-4-ol, 3-(diethylamino)propiophenone, benzylacetoacetate, isoamylbenzoate, pyridine, dichloromethane and 1,1,2,2-tetrachloroethane A waste polyvinyl chloride recycling composition that is any one selected from the following. The method according to claim 4, wherein the non-solvent is propanol, diethylether, n-heptane, hexane, 1,4-butadiol, octane, cyclopentane, propyleneglycol, dimethylsulfoxide, methanol, ethanol, 2-propanol, 2,4-dimethylhexane, 3-ethyl- 2,4-dimethylpentane, 2,7-dimethyloctane, 2,6-dimethyl-heptane, 2-methyl-3-ethylpentane, 3,3-dimethylhexane, 2,3,5-trimethylhexane, 2,3,4-trimethylpentane, 2,2-dimethylheptane, 3,3-dimethylpentane, 1-(perfluorobutyl)icosane, 2,5-dimethylhexane, 2,2-dimethylhexane, 2,3,3-trimethylpentane, formicacid, 2,2,6-trimethylheptane, 2 ,2,4-trimethylhexane, 2,2,3-trimethylpentane, 2,3,3,4-tetramethylpentane, 2,4,4-trimethylhexane, 1-hydroxybenzotriazole, 3-ethyl-2,2-dimethyl-pentane, 2 ,2,4,6,6-pentamethylheptane, 2,2,5-trimethylhexane, 2-nitroethanol, 2,2,3,4-tetramethylpentane, octamethyltrisiloxane, 2,2,3,3-tetramethylhexane, 1,5-pentanediol , 1,1,1,2,2,3,3-heptafluoroundecane, 2,2,5,5-tetramethylhexane, 2,2,3,3-tetramethylpentane, 2,2,4-trimethylpentane, 2,2,4 ,4-tetramethylpentane, dodecamethylcyclohexasil oxane, acetaldehydeammonia, 1,1,1,2,2,3,3,4,4-nonafluorohexadecane, dodecamethylpentasiloxane, 1,1,1,2,2,3,3-heptafluorononane, 1,3-dioxolan-2- one, decamethyltetrasiloxane, 1-(perfluorohexyl)docosane, hexamethyldisilane, 1,1,1,2,2,3,3,4,4,5,5-undecafluorononadecane, tetradecamethylhexasiloxane, 1,1,1,2,2,3 ,3,4,4,5,5,6,6-tridecafluorohexacosane, 1,1,1,2,2,3,3,4,4-nonafluorooundecane, 1,1,1,2,2,3,3 ,4,4-nonafluorododecane, hexadecamethylheptasiloxane, 1,1,1,2,2,3,3,4,4,5,5,6,6-tridecafluorotetracosane, propynol, 1,1,1,2,2,3 ,3,4,4-nonafluorodecane, ethanolamine, 1,1,1,2,2,3,3,4,4,5,5,6,6-tridecafluorodocosane, 2-hydroxypropanenitrile, 1,1,1,2 ,2,3,3,4,4,5,5,6,6-tridecafluoroicosane, 1,1,1,2,2,3,3,4,4-nonafluorononane, 1,1,1,2,2 ,3,3,4,4,5,5,6,6-tridecafluorooctadecane, cis-2-butene-1,4-diol, 1,1,1,2,2,3,3,4,4,5 -decafluorononane, 1,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8-heptadecafluorooctacosane, 1,1,1,2,2,3 ,3,4,4,5,5,6,6-tridecafluorohexadecane, 1,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8 -heptadecafluorohexac osane, 1,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8-heptadecafluoropentacosane, 1,1,1,2,2,3, 3,4,4,5,5,6,6-tridecafluoropentadecane, 1,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8- heptadecafluorotetracosane, 1-(perfluorohexyl)octane, 1,1,1,2,2,3,3,4,4,5,5-undecafluorodecane, 1,1,1,2,2,3,3,4,4 ,5,5,6,6-tridecafluorotridecane, 1,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8-heptadecafluorodocosane, 1h,8h -hexadecafluorooctane, 1,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10-henicosafluorotriacontane, hexacosamethyldodecasiloxane, 1 ,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8-heptadecafluoroicosane, 1,1,1,2,2,3,3,4 ,4,5,5,6,6-tridecafluorododecane, 1,3-propanediol, 1,1,1,2,2,3,3,4,4,5,5,6,6-tridecafluorooundecane, 1,1 ,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8-heptadecafluorononadecane, 1,1,1,2,2,3,3,4,4 ,5,5,6,6,7,7,8,8,9,9,10,10-henicosafluorononacosane, 1,1,1,2,2,3,3,4,4,5,5,6 ,6,7,7,8,8-heptadecafluorooctadecane, 1,1,1,2,2,3,3,4,4,5,5,6,6,7,7-pentadecafluorotetradecane, 1,1,1 ,2,2,3,3,4,4,5,5,6-dodecafluorononane, 1,1,1,2,2,3,3,4,4,5,5-undecafluorooctane, 1, 1,1,2,2,3,3,4,4,5,5,6,6,7,7-pentadecafluorotridecane, 1-perfluorooctyloctane, 1,1,1,2,2,3,3,4, 4,5,5,6,6-tridecafluorodecane, 1,1,1,2,2,3,3,4,4,13,13,14,14,15,15,16,16,16-octadecafluorohexadecane, 1,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8-heptadecafluoropentadecane, 1,1,1,2,2,3,3, 4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12-pentacosafluorohentriacontane, acetamidomethanol, 1,1,1,2,2, 3,3,4,4,5,5,6,6,7,7,8,8-heptadecafluorotetradecane, 1-(henicosafluorodecyl)undecane, 1,1,1,2,2,3,3,4,4 ,5,5,6,6,7,7,8,8-heptadecafluorotridecane, 1,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8 ,8,9,9,10,10,11,11,12,12-pentacosafluorooctacosane, ethylenecyanohydrin, 1,1,1,2,2,3,3,4,4,5,5,6,6,7 ,7,8,8,9,9,10,10-henicosafluoroicosane, 1,1,1,2,2,3,3,4,4,5,5,6,6-tridecafluorooctane, perfluorooctylbromide, 1,1 ,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10-henicosafluorooctadecane, 1,1,1,2,2 ,3,3,4,4,5,5,6,6,7,7,8,8-heptadecafluorododecane, 1,1,1,2,2,3,3,4,4,5,5,6 ,6,7,7,8,8,9,9,10,10,11,11,12,12-pentacosafluorotetracosane, pentacosafluorotricosane, 1 -(perfluorohexyl)propane, 1,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10-henicosafluoropentadecane, 1,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8-heptadecafluorodecane, 1,1,1,2,2,3,3, 4,4,5,5,6,6,7,7,8,8,9,9,10,10-henicosafluorotetradecane, 1,1,1,2,2,3,3,4,4,5, 5,6,6,7,7,8,8,9,9,10,10,11,11,12,12-pentacosafluorooctadecane, 1,1,1,2,2,3,3,4,4, 5,5,6,6,7,7,8,8,9,9,10,10-henicosafluorotridecane, 1,1,1,2,2,3,3,4,4,5,5,6, 6,7,7,8,8,9,9,10,10-henicosafluorododecane, glycol, tetratriacontafluorotetracosane, glycerol, 1,1,1,2,2,3,3,4,4,5,5,6, 6,7,7,8,8,9,9,10,10,11,11,12,12-pentacosafluorotetradecane, methylhydroperoxide, H ₂ O, 4-hydroxymethyl-1,3-dioxolan-2-one, hydroxyacetonitrile, perfluorooctane, perfluorodecalin, methanesulfonicacid, formamide, 4-methylphenol, PBr ₃ , H ₂ O ₂ , BBr ₃ , methylbutane, 2,2-dimethylbutane, 2,2,3-trimethyl-butane, 2,2-dimethylpentane, 2,3 -dimethylbutane, pentane, 2,4-dimethylpentane, 2-methylpentane, 2-methylhexane, 3-methylpentane, 3-methylhexane, 3-ethylpentane, 3-ethyl-3-methy lpentane, 2-methylheptane, 3,3-diethylpentane, 3-methylheptane, 2-methyloctane, 4-methylheptane, 3-ethylheptane, 2-methyl-nonane, 3-methyloctane, 4-methyloctane, 2-methyldecane, 3-methyl- nonane, 1,1,3,3-tetramethylcyclopentane, 1,3-butanediol, 4-methyldecane, 5-methyl-nonane, 4-methyl-nonane, 1,1-dimethylcyclopentane, 1,1,2-trimethylcyclopentane, 1, 1,2-trimethylcyclohexane, n-decane, n-nonane, isobutylcyclopentane, isopropylcyclopentane, tert-butylcyclohexane, pentadecane, tridecane, 1,1,3-trimethylcyclopentane, 1,1,3-trimethylcyclohexane, nonadecane, heptadecane, octadecane, ethylcyclopentane, dodecane, n-undecane, propylcyclopentane, isobutylcyclohexane, isopropylcyclohexane, 1-ethyl-1-methylcyclopentane, 2,3,3-trimethyl-1-butene, 2,4,4-trimethyl-1-pentene, n-hexylcyclopentane, pentylcyclopentane, 1-isopropyl-4-methylcyclohexane, trimethylaluminum, n-tetradecylcyclopentane, tridecylcyclopentane, tetradecane, n-dodecylcyclopentane, n-decylcyclopentane, n-propylcyclohexane, ethylcycloh exane, 3,3-dimethyl-1-butene, n-hexadecane, pentene, 2,3,3-trimethyl-1-pentene, decylcyclohexane, pentylcyclohexane, 3,4-dicyclohexyl-2,5-dimethylhexane, 2-methyl- 1-butene, 3,3-dimethyl-1-pentene, 4,4-dimethyl-1-pentene, butylcyclohexane, methylcyclopentane, methylcyclohexane, decahydronaphthalene, hexahydroindene, bicyclohexyl, cyclohexane, 2,4,4-trimethyl-2-pentene, 2,3-dimethyl-1-pentene, tricyclohexylmethane, butylcyclopentane, 1-hexene, 2,3-dimethyl-1-butene, methylformamide, 3,3-dimethyl-1-butyne, triethyleneglycol, 3-methoxy-1,2- propanediol, 2,4-dimethyl-1-pentene, 1-heptene, 3-methyl-1-pentene, 3-ethyl-2-methyl-1-pentene, 1,4-di-tert-butylbenzene, diethyleneglycol, octane, methoxyaceticacid, 1-nonene, 4-methyl-1-hexene, 1,1,3,4,4,6-hexamethyltetralin, 1,3,5-triisopropylbenzene, 1,2,2,6,6-pentamethylpiperidine, 1, 4-diethylbenzene, 2-methyl-2-butene, isoprene, 4-methyl-1-pentene, 1-tetradecene, 3-ethyl-1-pentene, 2-methyl-3-heptene, 1-decene, 2,3, 4-trimethyl-2-pentene, 1-nonadece ne, butylbenzene, 2-ethoxy-2-methyl-propane, 1,2-diethylbenzene, ethanedial, cyclohexylbenzene, galaxolide, 1,2,3,4-tetramethylbenzene, 1,2,3,5-tetramethylbenzene, pentaethylbenzene, 1, 3,5-trimethylbenzene, isobutanol, peroxyaceticacid, 1,6-hexanediol, 2,6-di-tert-butyl-4-methylpyridine, 2,2'-(methylimino)bis-ethanol, 1,3-bis(1- methylethyl)-benzene, 2,7-diisopropylnaphthalene, 1,2,3,5-tetraethylbenzene, tetrahydro-2,2,5,5-tetramethylfuran, 1,5-diisopropylnaphthalene, 2,3-butanediol, 1,2-diisopropylbenzene , 1-(2-pentyl)-4-(3-pentyl)benzene, tetradecylbenzene, pentadecylbenzene, ethylbenzene, 3,6-bis-(methoxymethyl)-durene, 5-hydroxy-6-methoxy-8-[(4- amino-1-methylbutyl)amino]quinoline trihydrobromide, 1-(1,1-dimethylethyl)-3-methylbenzene, tridecylbenzene, 1-(methoxymethyl)-4-(2,4,4-trimethylpentan-2-yl)benzene, dodecylbenzene, 1,2,4-trimethylbenzene, 1-cyclohexyl-2-isopropylbenzene, 4,6,6-Trimethylbicyklo(3,1,1)hept-3-en, 2,6-di-tert-butylpyridine, 1, 1'-oxybis-octane, 1,5-hexanediol, 1- (1,1-dimethylethyl)-3,5-dimethylbenzene, menthylisovalerate, 1-methyl-7-(1-methylpropyl)naphthalene, tert-butanol, beta-himachalen, dimethoxymethane, 1,2,3,4,5,6 ,7,8-octahydroanthracene, tert-butylbenzene, 1,2-hexanediol, cyclohexene, 6,10,14-trimethylpentadecan-2-one, delta-cadinene, isopropylbenzene, undecylbenzene, 2,5-hexanediol, dipropyleneglycol, 1,6 -dimethyl-4-isopropyltetralin, di-n-propylether, diisopropylether, cuparen, 1,4-bis(1-methylethyl)-benzene, 2,4-dimethyl-3-thiapentane, 1-methoxy-4-(2,4 , 4-trimethylpentan-2-yl) benzene, 1-ethoxybutane, decylbenzene, and cycloheptane, which is any one of waste polyvinyl chloride recycling composition. Recycled polyvinyl chloride obtained by filtering the composition of any one of claims 4 to 9. The recycled polyvinyl chloride of claim 10 , wherein the recycled polyvinyl chloride includes an additive derived from waste. Selecting a good solvent and non-solvent for polyvinyl chloride extraction using the solvent screening method according to any one of claims 1 to 3;
contacting the waste containing the polyvinyl chloride with the good solvent and dissolving the polyvinyl chloride in the waste with the good solvent to obtain a polyvinyl chloride solution; and
A method for recycling waste containing polyvinyl chloride, comprising the step of precipitating polyvinyl chloride from the dissolving solution by contacting the dissolving solution with the non-solvent. The method according to claim 12, before the step of precipitating the polyvinyl chloride, further comprising a separation step of separating the solid content from the polyvinyl chloride solution, the method of recycling waste containing polyvinyl chloride.