KR102108425B1 - flame retardant resin for binder of air filter and manufacturing method thereof - Google Patents

Abstract

The present invention relates to a flame retardant resin for an air filter binder and a method for manufacturing the same, as well as excellent heat resistance and flame retardancy, and also to an environmentally friendly and water-soluble flame retardant resin for an air filter binder and a method for manufacturing the same.

Description

Flame retardant resin for binder of air filter and manufacturing method thereof

The present invention relates to a flame retardant resin for an air filter binder and a method for manufacturing the same, as well as excellent heat resistance and flame retardancy, and also to an environmentally friendly and water-soluble flame retardant resin for an air filter binder and a method for manufacturing the same.

The air filter used for air purifiers or industrial purposes is a product that is used for a long time due to its characteristics, and ignition easily occurs due to inertia collision due to heat generation and filter dust during use. In addition, since the filter media mainly uses paper and synthetic fibers that are easily ignited, thermal properties are very weak.

However, in Korea, the heat and flame retardant grades for filters are not currently set, and the fire resistance is insufficient to exert flame retardant performance in case of fire, and thus, the fire is always exposed.

In the case of overseas, the flame retardant standard of the filter is established, and the application of the flame retardant filter product is rapidly increasing. In addition, recently, the issue of air purifiers continues to increase, and the market for flame retardant air purifier filters continues to increase, but development is insignificant in Korea. This is because, unlike plastic flame retardant compounds, a solution type flame retardant system should be used and it is difficult to impart flame retardancy by a solvent. In addition, most phosphorus- and nitrogen-based flame retardants are difficult to dissolve in water or alcoholic solvents. In the case of air filter products, it is impossible to use aromatic solvents that emit VOCs, so resins dissolved or dispersed in water or alcohol should be used.

Accordingly, there is an urgent need to develop flame-retardant resins for air filter binders that are environmentally friendly and have excellent physical properties such as heat resistance, flame retardancy, and storage stability.

Republic of Korea Publication No. 10-2000-0029908 (2000.05.25)

The present invention has an object to provide a flame retardant resin for an air filter binder and a manufacturing method thereof, which is excellent in dilution ability by water and is not only eco-friendly, but also excellent in heat resistance, flame retardancy and storage stability.

In order to solve the above problems, the flame retardant resin for the air filter binder of the present invention may include a polymer comprising a repeating unit represented by the following formula (1).

[Formula 1]

In Chemical Formula 1, R ₁ to R ₂ , R ₅ to R ₆ , R ₉ to R ₁₁ , R ₁₃ to R ₂₀ are each independently a hydrogen atom, C1 to C12 straight-chain alkyl group, C3 to C12 grinding Type alkyl group, phenyl group or alkylphenyl group, R ₇ and R ₁₂ are each independently a C1 to C12 straight chain alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group, and R ₃ , R ₄ and R ₈ are Hydrogen atom, n is a rational number that satisfies the weight average molecular weight (Mw) of the polymer of 10,000 to 500,000.

Meanwhile, the flame retardant resin for an air filter binder of the present invention may include a polymer including a repeating unit represented by the following Chemical Formula 2.

[Formula 2]

In Chemical Formula 2, R ₁ to R ₂ , R ₅ to R ₆ , R ₉ to R ₁₁ , R ₁₃ to R ₁₇ , and R ₂₁ are each independently a hydrogen atom, a C1 to C12 straight-chain alkyl group, C3 ~ C12 is a pulverized alkyl group, a phenyl group or an alkylphenyl group, R ₇ and R ₁₂ are each independently a C1 ~ C12 straight alkyl group, C3 ~ C12 pulverized alkyl group, phenyl group or alkylphenyl group, R ₃ , R ₄ And R ₈ is a hydrogen atom, and m is a rational number satisfying the weight average molecular weight (Mw) of the polymer of 10,000 to 500,000.

As a preferred embodiment of the present invention, the flame retardant resin for the air filter binder of the present invention may have a nitrogen content of 1.5% by weight or more.

As a preferred embodiment of the present invention, the flame retardant resin for the air filter binder of the present invention has a solids content of 39.5 wt% or more, a pH of 6.0 to 7.0, and a viscosity at 25 ° C of 20 to 30 cPs.

Furthermore, in the method of manufacturing the flame retardant resin for an air filter binder of the present invention, a polymer comprising a repeating unit represented by the following Chemical Formula 3 and a compound represented by the following Chemical Formula 4 are polymerized in a weight ratio of 1: 0.06 to 0.42 to be represented by the following Chemical Formula 1 It is possible to prepare a polymer comprising a repeating unit.

[Formula 1]

In Chemical Formula 1, in Chemical Formula 1, R ₁ to R ₂ , R ₅ to R ₆ , R ₉ to R ₁₁ , and R ₁₃ to R ₂₀ are each independently a hydrogen atom, a C1 to C12 straight-chain alkyl group. , C3 ~ C12 is a pulverized alkyl group, a phenyl group or an alkylphenyl group, R ₇ and R ₁₂ are each independently a C1 ~ C12 linear alkyl group, C3 ~ C12 pulverized alkyl group, phenyl group or alkylphenyl group, R ₃ , R ₄ and R ₈ are hydrogen atoms, n is a rational number that satisfies the weight average molecular weight (Mw) of the polymer of 10,000 to 500,000,

[Formula 3]

In Chemical Formula 3, R ₁ to R ₂ , R ₅ to R ₆ , R ₉ to R ₁₁ , R ₁₃ to R ₁₅ are each independently a hydrogen atom, C1 to C12 straight-chain alkyl group, C3 to C12 grinding Type alkyl group, phenyl group or alkylphenyl group, R ₇ and R ₁₂ are each independently a C1 to C12 straight chain alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group, and R ₃ , R ₄ and R ₈ are Hydrogen atom, l is a rational number that satisfies the weight average molecular weight (Mw) of the polymer of 10,000 to 500,000,

[Formula 4]

In Chemical Formula 4, R ₁₆ to R ₂₀ are each independently a hydrogen atom, a C1 to C12 linear alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group, or an alkylphenyl group.

On the other hand, the manufacturing method of the flame retardant resin for the air filter binder of the present invention is a polymer comprising a repeating unit represented by the following formula (3) and a compound represented by the following formula (5) 1: 1 to 0.05 to 0.24 by weight ratio polymerization represented by It is possible to prepare a polymer comprising a repeating unit.

[Formula 2]

In Chemical Formula 2, R ₁ to R ₂ , R ₅ to R ₆ , R ₉ to R ₁₁ , R ₁₃ to R ₁₇ , and R ₂₁ are each independently a hydrogen atom, a C1 to C12 straight-chain alkyl group, C3 ~ C12 is a pulverized alkyl group, a phenyl group or an alkylphenyl group, R ₇ and R ₁₂ are each independently a C1 ~ C12 straight alkyl group, C3 ~ C12 pulverized alkyl group, phenyl group or alkylphenyl group, R ₃ , R ₄ And R ₈ is a hydrogen atom, m is a rational number satisfying the weight average molecular weight (Mw) of the polymer of 10,000 to 500,000,

[Formula 3]

In Chemical Formula 3, R ₁ to R ₂ , R ₅ to R ₆ , R ₉ to R ₁₁ , R ₁₃ to R ₁₅ are each independently a hydrogen atom, C1 to C12 straight-chain alkyl group, C3 to C12 grinding Type alkyl group, phenyl group or alkylphenyl group, R ₇ and R ₁₂ are each independently a C1 to C12 straight chain alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group, and R ₃ , R ₄ and R ₈ are Hydrogen atom, l is a rational number that satisfies the weight average molecular weight (Mw) of the polymer of 10,000 to 500,000,

[Formula 5]

In Chemical Formula 5, R ₁₆ , R ₁₇ and R ₂₁ are each independently a hydrogen atom, a C1 to C12 linear alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group, or an alkylphenyl group.

As a preferred embodiment of the present invention, the polymer comprising the repeating unit represented by Formula 3 is based on 100 parts by weight of the compound represented by Formula 6, 272 to 408 parts by weight of the compound represented by Formula 7 below, It can be prepared by polymerizing 4,000 ~ 6,000 parts by weight of the compound represented by 8 and 9,040 ~ 13,560 parts by weight of the compound represented by the following formula (9).

[Formula 6]

In Chemical Formula 6, R ₁ and R ₂ are each independently a hydrogen atom, a C1 to C12 linear alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group, or an alkylphenyl group,

[Formula 7]

In the formula (7), R ₅ and R ₆ are each independently a hydrogen atom, C1 to C12 linear alkyl group, C3 to C12 pulverized alkyl group, phenyl group or alkylphenyl group, R ₇ is C1 to C12 straight chain type An alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group,

[Formula 8]

In Chemical Formula 8, R ₉ to R ₁₁ are each independently a hydrogen atom, a C1 to C12 linear alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group, and R ₁₂ is a C1 to C12 straight chain type An alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group,

 [Formula 9]

In the formula (9), R ₁₃ to R ₁₅ are each independently a hydrogen atom, a C1 to C12 linear alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group.

Furthermore, in the method of manufacturing the flame retardant resin for air filter binder of the present invention, the first step of preparing an emulsion, the solution of a mixture of a surfactant and a solvent is stirred, and then the second step of raising the temperature to 64 to 96 ° C, the heated solution The prepared emulsion is uniformly continuously added for 1 to 5 hours, and the polymerization reaction is performed while maintaining the temperature for 1 to 3 hours, and the third step of producing a flame retardant resin for an air filter binder and cooling to 40 to 60 ° C and Including a fourth step of adjusting the pH, the emulsion is a compound represented by the following formula (6), a compound represented by the following formula (7), a compound represented by the following formula (8), a compound represented by the following formula (9), a nitrogen-based monomer, It can be prepared by mixing a surfactant and a solvent.

[Formula 6]

In Chemical Formula 6, R ₁ and R ₂ are each independently a hydrogen atom, a C1 to C12 linear alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group, or an alkylphenyl group,

 [Formula 7]

In the formula (7), R ₅ and R ₆ are each independently a hydrogen atom, C1 to C12 linear alkyl group, C3 to C12 pulverized alkyl group, phenyl group or alkylphenyl group, R ₇ is C1 to C12 straight chain type An alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group,

 [Formula 8]

In Chemical Formula 8, R ₉ to R ₁₁ are each independently a hydrogen atom, a C1 to C12 linear alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group, and R ₁₂ is a C1 to C12 straight chain type An alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group,

 [Formula 9]

In the formula (9), R ₁₃ to R ₁₅ are each independently a hydrogen atom, a C1 to C12 linear alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group.

As a preferred embodiment of the present invention, the nitrogen-based monomer may include one or more of the compounds represented by the following formula (4) and the formula (5).

[Formula 4]

In Chemical Formula 4, R ₁₆ to R ₂₀ are each independently a hydrogen atom, a C1 to C12 linear alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group, or an alkylphenyl group,

 [Formula 5]

In Chemical Formula 5, R ₁₆ , R ₁₇ and R ₂₁ are each independently a hydrogen atom, a C1 to C12 linear alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group, or an alkylphenyl group.

As a preferred embodiment of the present invention, the surfactant is sodium lauryl sulfate (sodium lauryl sulfate), sodium dodecyl sulfate (Sodium dodecyl sulfate), ammonium lauryl sulfate, ammonium lauryl sulfate (Ammonium dodecyl sulfate) sulfate), triethylamine lauryl sulfate (Triethylamine lauryl sulfate) and triethylamine dodecyl sulfate (Triethylamine dodecyl sulfate), and the solvent may include water.

As a preferred embodiment of the present invention, the prepared flame-retardant resin is dried at 125 to 145 ° C for 30 to 90 minutes to volatilize the volatile material, and then heated at a temperature of 25 to 1000 ° C and a temperature of 8 to 12 ° C / min. The weight balance measured at 200 to 400 ° C is 98% by weight or more, the weight residual rate measured at 400 to 600 ° C is 5% by weight or more, and the weight residual rate measured at 800 to 1,000 ° C is 0.6 weight through a thermogravimetric analyzer. %.

On the other hand, the air filter of the present invention includes the flame retardant resin for the air filter binder mentioned above.

As a preferred embodiment of the present invention, the air filter may be an air filter for an air purifier, an air filter for air conditioning, or an air filter for automobiles.

As a preferred embodiment of the present invention, the air filter may have an air permeability of 600 to 650 L / m ² / s, and a burst strength of 2.2 to 2.7 kg / cm ² .

As a preferred embodiment of the present invention, the filtration efficiency of the air filter may be 10 ~ 12%, pressure loss may be 1.0 ~ 3.0 mmAq.

The flame retardant resin for the air filter binder of the present invention and a method for manufacturing the same are excellent in dilution by water and are not only eco-friendly, but also excellent in heat resistance, flame retardancy and storage stability.

In addition, the flame retardant resin for the air filter binder of the present invention and its manufacturing method have excellent physical properties such as air permeability and burst strength.

In addition, the flame retardant resin for the air filter binder of the present invention and its manufacturing method have high filtration efficiency and low pressure loss.

The terms "C1", "C2", and the like used in the present invention mean carbon number, and for example, "C1 to C5 alkyl group" means an alkyl group having 1 to 5 carbon atoms.

The flame retardant resin for an air filter binder of the present invention will be described first.

Flame-retardant resin for the air filter binder of the present invention may include a polymer comprising a repeating unit represented by the following formula (1).

[Formula 1]

In Formula 1, R ₁ to R ₂ , R ₅ to R ₆ , R ₉ to R ₁₁ , R ₁₃ to R ₂₀ are each independently a hydrogen atom, C1 to C12 straight-chain alkyl group, C3 to C12 pulverized It is an alkyl group, a phenyl group or an alkylphenyl group, preferably a hydrogen atom, a C1 to C12 straight-chain alkyl group or a C3 to C12 pulverized alkyl group, more preferably a hydrogen atom, a C1 to C3 straight-chain alkyl group or a C3 to C5 It is a pulverized alkyl group.

In addition, in Chemical Formula 1, R ₇ and R ₁₂ are each independently a C1 to C12 linear alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group, preferably a C1 to C12 linear alkyl group, or C3 to C12 is a pulverized alkyl group, and more preferably C1 to C3 is a linear alkyl group or C3 to C5 is a pulverized alkyl group.

In addition, in Chemical Formula 1, R ₃ , R ₄ and R ₈ are hydrogen atoms.

In addition, in Chemical Formula 1, n is a rational number satisfying the weight average molecular weight (Mw) of the polymer of 10,000 to 500,000, preferably 50,000 to 300,000, and more preferably 150,000 to 250,000.

In addition, the flame retardant resin for the air filter binder of the present invention may include a polymer comprising a repeating unit represented by the following formula (2).

[Formula 2]

In Chemical Formula 2, R ₁ to R ₂ , R ₅ to R ₆ , R ₉ to R ₁₁ , R ₁₃ to R ₁₇ , and R ₂₁ are each independently a hydrogen atom, a C1 to C12 straight-chain alkyl group, C3 to C12 is a pulverized alkyl group, a phenyl group or an alkylphenyl group, preferably a hydrogen atom, a C1 to C12 linear alkyl group or a C3 to C12 pulverized alkyl group, more preferably a hydrogen atom, a C1 to C3 straight alkyl group, or C3 to C5 are pulverized alkyl groups.

In addition, in Chemical Formula 2, R ₇ and R ₁₂ are each independently a C1 to C12 linear alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group, preferably a C1 to C12 linear alkyl group, or C3 to C12 is a pulverized alkyl group, and more preferably C1 to C3 is a linear alkyl group or C3 to C5 is a pulverized alkyl group.

In the formula (2), R ₃ , R ₄ and R ₈ are hydrogen atoms.

In addition, in Chemical Formula 2, m is a rational number that satisfies the weight average molecular weight (Mw) of the polymer of 10,000 to 500,000, preferably 50,000 to 300,000, and more preferably 150,000 to 250,000.

Meanwhile, the flame retardant resin for the air filter binder of the present invention may have a nitrogen content of 1.5% by weight or more, preferably 1.5 to 4.5% by weight, and more preferably 2.0 to 4.0% by weight. If the nitrogen content is less than 1.5% by weight, there is a problem in that flame retardancy is significantly insufficient.

In addition, the flame retardant resin for the air filter binder of the present invention may have a solid content of 39.5% by weight or more, preferably 39.8 to 42% by weight.

In addition, the flame retardant resin for the air filter binder of the present invention may have a pH of 6.0 to 7.0, preferably 6.3 to 6.8.

In addition, the flame retardant resin for an air filter binder of the present invention may have a viscosity of 20 to 30 cPs at 25 ° C, preferably 23 to 26 cPs.

Furthermore, the air filter of the present invention includes the above-mentioned flame retardant resin for the air filter binder.

At this time, the air filter of the present invention may be an air filter for an air purifier, an air filter for air conditioning, an air filter for a dust collector, an air filter for household appliances or automobiles, preferably an air filter for an air purifier, an air filter for air conditioning Or it may be a car air filter.

In addition, the air filter of the present invention may be in the air permeability is ^{600 ~ 650 L / m 2 /} s, preferably ^{610 ~ 640L / m 2 / s} .

In addition, the air filter of the present invention has a bursting strength of 2.2 to 2.7 kg / cm ² , Preferably it may be 2.3 to 2.6 kg / cm ² .

In addition, the air filter of the present invention may have a filtration efficiency of 10 to 12%, preferably 10.5 to 11.5%.

In addition, the air filter of the present invention may have a pressure loss of 1.0 to 3.0 mmAq, preferably 2.0 to 2.8 mmAq.

On the other hand, the method of manufacturing a flame retardant resin for an air filter binder of the present invention is a polymer comprising a repeating unit represented by the following formula (3) and a polymer comprising a repeating unit represented by the following formula (1) by polymerizing the compound represented by the following formula (4) Can be produced.

[Formula 1]

In Formula 1, R ₁ to R ₂ , R ₅ to R ₆ , R ₉ to R ₁₁ , R ₁₃ to R ₂₀ are each independently a hydrogen atom, C1 to C12 straight-chain alkyl group, C3 to C12 pulverized It is an alkyl group, a phenyl group or an alkylphenyl group, preferably a hydrogen atom, a C1 to C12 straight-chain alkyl group or a C3 to C12 pulverized alkyl group, more preferably a hydrogen atom, a C1 to C3 straight-chain alkyl group or a C3 to C5 It is a pulverized alkyl group.

In addition, in Chemical Formula 1, R ₇ and R ₁₂ are each independently a C1 to C12 linear alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group, preferably a C1 to C12 linear alkyl group, or C3 to C12 is a pulverized alkyl group, and more preferably C1 to C3 is a linear alkyl group or C3 to C5 is a pulverized alkyl group.

In addition, in Chemical Formula 1, R ₃ , R ₄ and R ₈ are hydrogen atoms.

In addition, in Chemical Formula 1, n is a rational number satisfying the weight average molecular weight (Mw) of the polymer of 10,000 to 500,000, preferably 50,000 to 300,000, and more preferably 150,000 to 250,000.

[Formula 3]

In Formula 3, R ₁ to R ₂ , R ₅ to R ₆ , R ₉ to R ₁₁ , R ₁₃ to R ₁₅ are each independently a hydrogen atom, C1 to C12 straight-chain alkyl group, C3 to C12 pulverized It is an alkyl group, a phenyl group or an alkylphenyl group, preferably a hydrogen atom, a C1 to C12 straight-chain alkyl group or a C3 to C12 pulverized alkyl group, more preferably a hydrogen atom, a C1 to C3 straight-chain alkyl group or a C3 to C5 It is a pulverized alkyl group.

In addition, in the formula (3), R ₇ and R ₁₂ are each independently a C1 to C12 linear alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group, preferably a C1 to C12 linear alkyl group, or C3 to C12 is a pulverized alkyl group, and more preferably C1 to C3 is a linear alkyl group or C3 to C5 is a pulverized alkyl group.

In addition, in the formula (3), R ₃ , R ₄ and R ₈ are hydrogen atoms.

In addition, in Chemical Formula 3, l is a rational number that satisfies the weight average molecular weight (Mw) of the polymer of 10,000 to 500,000, preferably 50,000 to 300,000, and more preferably 150,000 to 250,000.

[Formula 4]

In the formula (4), R ₁₆ to R ₂₀ are each independently a hydrogen atom, a C1 to C12 linear alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group, preferably a hydrogen atom, C1 to C12 It is a straight chain alkyl group or a C3 to C12 pulverized alkyl group, and more preferably a hydrogen atom, a C1 to C3 straight alkyl group, or a C3 to C5 pulverized alkyl group.

At this time, the polymer comprising the repeating unit represented by the formula (3) and the compound represented by the formula (4) is 1: 0.06 ~ 0.42 weight ratio, preferably 1: 0.08 ~ 0.33 weight ratio, more preferably 1: 0.11 ~ 0.26 It can be polymerized in a weight ratio, if the compound represented by the formula (4) relative to the weight ratio of the polymer 1 containing the repeating unit represented by the formula (3) is less than 0.06 weight ratio, as well as low burst strength after manufacturing with an air filter, There may be a problem that the performance as a flame retardant air filter is insufficient because the flame retardant performance is unqualified, and if it exceeds 0.42 weight ratio, there is a problem that the performance as a flame retardant air filter is insufficient due to a high pressure loss as well as a low air permeability after being manufactured as an air filter. It can be.

Furthermore, the method of manufacturing the flame retardant resin for an air filter binder of the present invention is a polymer comprising a repeating unit represented by the following formula (3) and a polymer comprising a repeating unit represented by the following formula (2) by polymerizing a compound represented by the following formula (5) Can be produced.

[Formula 2]

In Chemical Formula 2, R ₁ to R ₂ , R ₅ to R ₆ , R ₉ to R ₁₁ , R ₁₃ to R ₁₇ , and R ₂₁ are each independently a hydrogen atom, a C1 to C12 straight-chain alkyl group, C3 to C12 is a pulverized alkyl group, a phenyl group or an alkylphenyl group, preferably a hydrogen atom, a C1 to C12 linear alkyl group or a C3 to C12 pulverized alkyl group, more preferably a hydrogen atom, a C1 to C3 straight alkyl group, or C3 to C5 are pulverized alkyl groups.

In addition, in Chemical Formula 2, R ₇ and R ₁₂ are each independently a C1 to C12 linear alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group, preferably a C1 to C12 linear alkyl group, or C3 to C12 is a pulverized alkyl group, and more preferably C1 to C3 is a linear alkyl group or C3 to C5 is a pulverized alkyl group.

In the formula (2), R ₃ , R ₄ and R ₈ are hydrogen atoms.

In addition, in Chemical Formula 2, m is a rational number that satisfies the weight average molecular weight (Mw) of the polymer of 10,000 to 500,000, preferably 50,000 to 300,000, and more preferably 150,000 to 250,000.

[Formula 3]

In Formula 3, R ₁ to R ₂ , R ₅ to R ₆ , R ₉ to R ₁₁ , R ₁₃ to R ₁₅ are each independently a hydrogen atom, C1 to C12 straight-chain alkyl group, C3 to C12 pulverized It is an alkyl group, a phenyl group or an alkylphenyl group, preferably a hydrogen atom, a C1 to C12 straight-chain alkyl group or a C3 to C12 pulverized alkyl group, more preferably a hydrogen atom, a C1 to C3 straight-chain alkyl group or a C3 to C5 It is a pulverized alkyl group.

In addition, in the formula (3), R ₇ and R ₁₂ are each independently a C1 to C12 linear alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group, preferably a C1 to C12 linear alkyl group, or C3 to C12 is a pulverized alkyl group, and more preferably C1 to C3 is a linear alkyl group or C3 to C5 is a pulverized alkyl group.

In addition, in the formula (3), R ₃ , R ₄ and R ₈ are hydrogen atoms.

In addition, in Chemical Formula 3, l is a rational number that satisfies the weight average molecular weight (Mw) of the polymer of 10,000 to 500,000, preferably 50,000 to 300,000, and more preferably 150,000 to 250,000.

[Formula 5]

In the formula (5), R ₁₆ , R ₁₇ and R ₂₁ are each independently a hydrogen atom, a C1 to C12 linear alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group, preferably a hydrogen atom, C1 ~ C12 is a linear alkyl group or C3 ~ C12 is a pulverized alkyl group, more preferably a hydrogen atom, C1 ~ C3 is a straight alkyl group or C3 ~ C5 is a pulverized alkyl group.

At this time, the polymer comprising the repeating unit represented by the formula (3) and the compound represented by the formula (5) is 1: 0.05 ~ 0.24 weight ratio, preferably 1: 0.07 ~ 0.22 weight ratio, more preferably 1: 0.08 ~ 0.18 It can be polymerized in a weight ratio, if the compound represented by the formula (5) with respect to 1 weight ratio of the polymer containing the repeating unit represented by the formula (3) is less than 0.05 weight ratio, as well as low burst strength after manufacturing with an air filter, There may be a problem that the performance as a flame retardant air filter is insufficient due to the failure of the flame retardant performance, and if it exceeds 0.24 weight ratio, there is a problem that the air filter is not only low in air permeability after being manufactured with an air filter, but also has a high pressure loss, resulting in insufficient performance as a flame retardant air filter. You can.

Meanwhile, the polymer containing the repeating unit represented by Chemical Formula 3 is prepared by polymerizing a compound represented by Chemical Formula 6, a compound represented by Chemical Formula 7, a compound represented by Chemical Formula 8, and a compound represented by Chemical Formula 9 can do.

[Formula 6]

In Chemical Formula 6, R ₁ and R ₂ are each independently a hydrogen atom, a C1 to C12 linear alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group, preferably a hydrogen atom, C1 to C12 Is a straight-chain alkyl group or a C3 to C12 pulverized alkyl group, more preferably a hydrogen atom, a C1 to C3 straight-chain alkyl group, or a C3 to C5 pulverized alkyl group.

[Formula 7]

In Chemical Formula 7, R ₅ and R ₆ are each independently a hydrogen atom, a C1 to C12 linear alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group, preferably a hydrogen atom, C1 to C12 Is a straight-chain alkyl group or a C3 to C12 pulverized alkyl group, more preferably a hydrogen atom, a C1 to C3 straight-chain alkyl group, or a C3 to C5 pulverized alkyl group.

In addition, in Chemical Formula 7, R ₇ is a C1 to C12 straight-chain alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group, preferably a C1 to C12 straight-chain alkyl group or a C3 to C12 pulverized type It is an alkyl group, more preferably a C1 to C3 straight-chain alkyl group or a C3 to C5 pulverized alkyl group.

 [Formula 8]

In the formula (8), R ₉ to R ₁₁ are each independently a hydrogen atom, a C1 to C12 linear alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group, preferably a hydrogen atom, C1 to C12 It is a straight chain alkyl group or a C3 to C12 pulverized alkyl group, and more preferably a hydrogen atom, a C1 to C3 straight alkyl group, or a C3 to C5 pulverized alkyl group.

In addition, in Chemical Formula 8, R ₁₂ is a C1 to C12 straight alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group, preferably a C1 to C12 straight chain alkyl group, and more preferably C1 C3 is a straight-chain alkyl group.

[Formula 9]

In Chemical Formula 9, R ₁₃ to R ₁₅ are each independently a hydrogen atom, a C1 to C12 linear alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group, preferably a hydrogen atom, C1 to C12 Is a straight-chain alkyl group or a C3 to C12 pulverized alkyl group, more preferably a hydrogen atom, a C1 to C3 straight-chain alkyl group, or a C3 to C5 pulverized alkyl group.

In addition, the polymer containing the repeating unit represented by Chemical Formula 3 is 272 to 408 parts by weight of the compound represented by Chemical Formula 7, preferably 306 to 374 parts by weight, more preferably 100 parts by weight of Compound represented by Chemical Formula 6 323 ~ 357 parts by weight may be prepared by polymerization, and if the compound represented by the formula (7) is less than 272 parts by weight, when manufacturing an air filter, there may be a problem that the performance of the flame retardant air filter is insufficient due to low burst strength. If it exceeds the weight part, there may be a problem of gelation of the flame-retardant resin during the reaction.

Further, the polymer containing the repeating unit represented by Chemical Formula 3 is 4,000 to 6,000 parts by weight of the compound represented by Chemical Formula 8, preferably 4,500 to 5,500 parts by weight, more preferably 100 parts by weight of Compound represented by Chemical Formula 6 4,750 ~ 5,250 parts by weight can be prepared by polymerization, and if the compound represented by the formula (8) is less than 4,000 parts by weight, when manufacturing an air filter, not only the filtration efficiency is low, but also the air permeability is low, resulting in insufficient performance of the flame retardant air filter. When there is, if it exceeds 6,000 parts by weight, when manufacturing an air filter, there is a problem that the bursting strength is lowered and the performance of the flame retardant air filter is insufficient.

In addition, the polymer containing the repeating unit represented by Chemical Formula 3 is 9,040 to 13,560 parts by weight, preferably 10,170 to 12,430 parts by weight, and more preferably, 100 parts by weight of the compound represented by Chemical Formula 6 Can be prepared by polymerizing 10,735 ~ 11,865 parts by weight, and if the compound represented by the formula (9) is less than 9,040 parts by weight, when manufacturing an air filter, the bursting strength may be lowered and the performance of the flame retardant air filter may be insufficient, and 13,560 When the air filter is produced in excess of the weight part, the filtration efficiency may not only be lowered, but also the air permeability may be lowered, resulting in insufficient performance of the flame retardant air filter.

On the other hand, the manufacturing method of the flame retardant resin for the air filter binder of the present invention includes a first step to a fourth step.

First, in the first step of the method of manufacturing a flame retardant resin for an air filter binder of the present invention, an emulsion may be prepared.

At this time, the prepared emulsion is a mixture of a compound represented by the following formula (6), a compound represented by the following formula (7), a compound represented by the following formula (8), a compound represented by the following formula (9), a nitrogen-based monomer, a surfactant and a solvent Can be manufactured.

[Formula 6]

In Chemical Formula 6, R ₁ and R ₂ are each independently a hydrogen atom, a C1 to C12 linear alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group, preferably a hydrogen atom, C1 to C12 Is a straight-chain alkyl group or a C3 to C12 pulverized alkyl group, more preferably a hydrogen atom, a C1 to C3 straight-chain alkyl group, or a C3 to C5 pulverized alkyl group.

[Formula 7]

In Chemical Formula 7, R ₅ and R ₆ are each independently a hydrogen atom, a C1 to C12 linear alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group, preferably a hydrogen atom, C1 to C12 Is a straight-chain alkyl group or a C3 to C12 pulverized alkyl group, more preferably a hydrogen atom, a C1 to C3 straight-chain alkyl group, or a C3 to C5 pulverized alkyl group.

In addition, in Chemical Formula 7, R ₇ is a C1 to C12 straight-chain alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group, preferably a C1 to C12 straight-chain alkyl group or a C3 to C12 pulverized type It is an alkyl group, more preferably a C1 to C3 straight-chain alkyl group or a C3 to C5 pulverized alkyl group.

[Formula 8]

In the formula (8), R ₉ to R ₁₁ are each independently a hydrogen atom, a C1 to C12 linear alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group, preferably a hydrogen atom, C1 to C12 It is a straight chain alkyl group or a C3 to C12 pulverized alkyl group, and more preferably a hydrogen atom, a C1 to C3 straight alkyl group, or a C3 to C5 pulverized alkyl group.

In addition, in Chemical Formula 8, R ₁₂ is a C1 to C12 straight alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group, preferably a C1 to C12 straight chain alkyl group, and more preferably C1 C3 is a straight-chain alkyl group.

[Formula 9]

In Chemical Formula 9, R ₁₃ to R ₁₅ are each independently a hydrogen atom, a C1 to C12 linear alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group, preferably a hydrogen atom, C1 to C12 Is a straight-chain alkyl group or a C3 to C12 pulverized alkyl group, more preferably a hydrogen atom, a C1 to C3 straight-chain alkyl group, or a C3 to C5 pulverized alkyl group.

The nitrogen-based monomer may include at least one of compounds represented by the following Chemical Formula 4 and compounds represented by the following Chemical Formula 5.

[Formula 4]

In the formula (4), R ₁₆ to R ₂₀ are each independently a hydrogen atom, a C1 to C12 linear alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group, preferably a hydrogen atom, C1 to C12 It is a straight-chain alkyl group or a C3 to C12 pulverized alkyl group, and more preferably a hydrogen atom, a C1 to C3 straight-chain alkyl group, or a C3 to C5 pulverized alkyl group.

[Formula 5]

In Chemical Formula 5, R ₁₆ , R ₁₇ and R ₂₁ are each independently a hydrogen atom, a C1 to C12 linear alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group, preferably a hydrogen atom, C1 ~ C12 is a linear alkyl group or C3 ~ C12 is a pulverized alkyl group, more preferably a hydrogen atom, C1 ~ C3 is a straight alkyl group or C3 ~ C5 is a pulverized alkyl group.

Surfactants include sodium lauryl sulfate, sodium dodecyl sulfate, ammonium lauryl sulfate, ammonium dodecyl sulfate, triethylamine lauryl sulfate ( Triethylamine lauryl sulfate) and triethylamine dodecyl sulfate (Triethylamine dodecyl sulfate) may include one or more, preferably, may include sodium lauryl sulfate (sodium lauryl sulfate), more preferably 30% by weight % Sodium lauryl sulfate solution.

The solvent may include a solvent that can be generally used in the art, and preferably water.

Specifically, the emulsion prepared in the first step of the method for manufacturing a flame retardant resin for an air filter binder of the present invention is prepared by first adding a surfactant to a solvent and stirring the solution, and thereafter, the above formula 6 in the prepared solution. A compound represented by, a compound represented by the formula (7), a compound represented by the formula (8), a compound represented by the formula (9) and a nitrogen-based monomer may be added and stirred to prepare an emulsion.

Next, in the second step of the method for manufacturing a flame retardant resin for an air filter binder of the present invention, after stirring a solution of a surfactant and a solvent, 64 to 96, preferably 72 to 88, more preferably 76 to It can be heated up to 84. At this time, the reason for raising the temperature from 64 to 96 is to completely dissolve the emulsion injected in the third step in a solution of a surfactant and a solvent.

The second stage surfactants are sodium lauryl sulfate, sodium dodecyl sulfate, ammonium lauryl sulfate, ammonium dodecyl sulfate, and triethylamine It may include at least one of triethylamine lauryl sulfate and triethylamine dodecyl sulfate, preferably sodium lauryl sulfate, and more preferably It may contain a 30% by weight sodium lauryl sulfate (sodium lauryl sulfate) solution.

The second stage solvent may include a solvent generally used in the art, and may preferably include water.

Next, in the third step of the method for manufacturing a flame retardant resin for an air filter binder of the present invention, the emulsion prepared in the first step is uniformly mixed with the solution heated in the second step for 1 to 5 hours, preferably 2 to 4 hours. It can be continuously added, and the polymerization reaction can be performed while maintaining the temperature for 1 to 3 hours, preferably 1.5 to 2.5 hours.

Finally, the fourth step of the method for manufacturing a flame retardant resin for an air filter binder of the present invention can be cooled to 40 to 60 ° C, preferably 45 to 55 ° C, and the pH can be adjusted.

The pH can be adjusted using ammonia, preferably an aqueous ammonia solution of 20 to 40% by weight, more preferably an aqueous ammonia solution of 25 to 30% by weight, and the pH is 6.0 to 7.0, preferably 6.3 to 6.8. Can be adjusted to be.

In addition, after the pH is adjusted, the solid content can be adjusted, the solid content can be adjusted through water, and the solid content can be adjusted to be 39.5% by weight or more, preferably 39.8 to 42% by weight.

As described above, the flame retardant resin for an air filter binder manufactured by the method for manufacturing the flame retardant resin for an air filter binder of the present invention is a polymer comprising a repeating unit represented by the following formula (1) or a polymer comprising a repeating unit represented by the following formula (2) You can.

[Formula 1]

In Formula 1, R ₁ to R ₂ , R ₅ to R ₆ , R ₉ to R ₁₁ , R ₁₃ to R ₂₀ are each independently a hydrogen atom, C1 to C12 straight-chain alkyl group, C3 to C12 pulverized It is an alkyl group, a phenyl group or an alkylphenyl group, preferably a hydrogen atom, a C1 to C12 straight-chain alkyl group or a C3 to C12 pulverized alkyl group, more preferably a hydrogen atom, a C1 to C3 straight-chain alkyl group or a C3 to C5 It is a pulverized alkyl group.

In addition, in Chemical Formula 1, R ₇ and R ₁₂ are each independently a C1 to C12 linear alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group, preferably a C1 to C12 linear alkyl group, or C3 to C12 is a pulverized alkyl group, and more preferably C1 to C3 is a linear alkyl group or C3 to C5 is a pulverized alkyl group.

In addition, in Chemical Formula 1, R ₃ , R ₄ and R ₈ are hydrogen atoms.

In addition, in Chemical Formula 1, n is a rational number satisfying the weight average molecular weight (Mw) of the polymer of 10,000 to 500,000, preferably 50,000 to 300,000, and more preferably 150,000 to 250,000.

In addition, the flame retardant resin for the air filter binder of the present invention may include a polymer comprising a repeating unit represented by the following formula (2).

[Formula 2]

In Chemical Formula 2, R ₁ to R ₂ , R ₅ to R ₆ , R ₉ to R ₁₁ , R ₁₃ to R ₁₇ , and R ₂₁ are each independently a hydrogen atom, a C1 to C12 straight-chain alkyl group, C3 to C12 is a pulverized alkyl group, a phenyl group or an alkylphenyl group, preferably a hydrogen atom, a C1 to C12 linear alkyl group or a C3 to C12 pulverized alkyl group, more preferably a hydrogen atom, a C1 to C3 straight alkyl group, or C3 to C5 are pulverized alkyl groups.

In addition, in Chemical Formula 2, R ₇ and R ₁₂ are each independently a C1 to C12 linear alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group, preferably a C1 to C12 linear alkyl group, or C3 to C12 is a pulverized alkyl group, and more preferably C1 to C3 is a linear alkyl group or C3 to C5 is a pulverized alkyl group.

In the formula (2), R ₃ , R ₄ and R ₈ are hydrogen atoms.

In addition, in Chemical Formula 2, m is a rational number that satisfies the weight average molecular weight (Mw) of the polymer of 10,000 to 500,000, preferably 50,000 to 300,000, and more preferably 150,000 to 250,000.

On the other hand, the flame retardant resin prepared by the method of manufacturing the flame retardant resin for the air filter binder of the present invention is volatilized by drying at 125 ~ 145 ℃, preferably 130 ~ 140 ℃ for 30 ~ 90 minutes, preferably 45 ~ 75 minutes After heating, the heating temperature is 25 to 1000 ° C, preferably 25 to 900 ° C, and the heating rate is 8 to 12 ° C / min, preferably 9 to 11 ° C / min, 200 to 400 ° C through a thermogravimetric analyzer. , Preferably 250 ~ 350 ℃, more preferably, the residual weight measured at 280 ~ 320 ℃ 98% by weight or more, preferably 98% by weight to 99% by weight, more preferably 98.3% by weight to 98.8% by weight Can be In addition, the residual weight measured at 400 to 600 ° C, preferably 450 to 550 ° C, more preferably 480 to 520 ° C, is 5% by weight or more, preferably 5% by weight to 10% by weight, more preferably 5.1 It may be weight% to 6.5% by weight. If, when the flame retardant resin for the air filter binder is less than 5% by weight measured at 400 ~ 600 ℃, there may be a problem that the performance as a flame retardant air filter is insufficient because the flame retardant performance is rejected after being manufactured as an air filter. In addition, the weight balance measured at 800 to 1,000 ° C, preferably 850 to 950 ° C, more preferably 880 to 920 ° C, is 0.6% by weight or more, preferably 0.6% by weight to 1.0% by weight, more preferably 0.61 It may be weight% to 0.75% by weight.

Hereinafter, the present invention will be described in more detail through examples, but the following examples are not intended to limit the scope of the present invention, which should be interpreted to help understand the present invention.

[Example]

Example 1: Preparation of flame retardant resin for air filter binder

(1) Into a stirrer, 900 g of water and 120 g of sodium lauryl sulfate solution of 30% by weight were added and stirred to prepare a solution. Then, 10 g of the compound represented by the following formula 6-1, 34 g of the compound represented by the following formula 7-1, 500 g of the compound represented by the following formula 8-1, and 1130 g of the compound represented by the following formula 9-1 in the prepared solution , 140 g of the compound represented by the following Chemical Formula 5-1 was sequentially added and stirred to prepare an emulsion.

[Formula 5-1]

In Chemical Formula 5-1, R ₁₇ to R ₁₆ are hydrogen atoms.

[Formula 6-1]

In Chemical Formula 6-1, R ₁ and R ₂ are hydrogen atoms.

[Formula 7-1]

In Chemical Formula 7, R ₅ and R ₆ are hydrogen atoms, and R ₇ is a methyl group.

[Formula 8-1]

In Chemical Formula 8, R ₉ to R ₁₁ are hydrogen atoms, and R ₁₂ is an ethyl group.

[Formula 9-1]

In Chemical Formula 9, R ₁₃ to R ₁₅ are hydrogen atoms.

(2) To a kettle equipped with a thermometer, a cooling tube, and a stirrer, 1280 g of water and 20 g of a 30% by weight sodium lauryl sulfate solution were added and stirred to prepare a solution, and then heated to 80 ° C.

(3) The prepared emulsion was uniformly continuously added to the heated solution for 3 hours, and the polymerization reaction was performed while maintaining the temperature for 2 hours.

(4) When the mid-reaction is completed, the reaction solution is cooled to 50 ° C., and the pH and solid content are adjusted with 27% by weight of aqueous ammonia and water, and the following Chemical Formula 2 has pH, solid content and nitrogen content as shown in Table 1 below. A flame retardant resin for an air filter binder was prepared, which is a polymer containing a repeating unit represented by -1.

[Formula 2-1]

In Formula 2-1, R ₇ is a methyl group, R ₁₂ is an ethyl group, R ₁ to R ₆ , R ₈ to R ₁₁ , R ₁₃ to R ₁₇ , and R ₂₁ are hydrogen atoms, m is a polymer It is a rational number that satisfies the weight average molecular weight (Mw) 160,000 to 170,000.

Example 2: Preparation of flame retardant resin for air filter binder

In the same manner as in Example 1, a flame retardant resin for an air filter binder was prepared. However, instead of using 140g of the compound represented by the formula (5-1) when preparing the emulsion, using 300g of the compound represented by the formula (5-1), as shown in Table 1 below, the formula (2-) having a pH, solid content and nitrogen content A flame retardant resin for an air filter binder, which is a polymer containing a repeating unit represented by 2, was prepared.

[Formula 2-2]

In Formula 2-2, R ₇ is a methyl group, R ₁₂ is an ethyl group, R ₁ to R ₆ , R ₈ to R ₁₁ , R ₁₃ to R ₁₇ , and R ₂₁ are hydrogen atoms, m is a polymer It is a rational number that satisfies the weight average molecular weight (Mw) 170,000 to 180,000.

Example 3: Preparation of flame retardant resin for air filter binder

In the same manner as in Example 1, a flame retardant resin for an air filter binder was prepared. However, instead of using 140 g of the compound represented by Formula 5-1 when preparing the emulsion, using 190 g of the compound represented by the following Formula 4-1, as shown in Table 1 below, the following formula has a pH, solid content and nitrogen content A flame retardant resin for an air filter binder was prepared, which is a polymer containing a repeating unit represented by 1-1.

[Formula 1-1]

In Formula 1-1, R ₇ is a methyl group, R ₁₂ is an ethyl group, R ₁ to R ₆ , R ₈ to R ₁₁ , R ₁₃ to R ₂₀ are hydrogen atoms, n is the weight average molecular weight of the polymer ( Mw) is a rational number that satisfies 190,000 to 200,000.

[Formula 4-1]

In Chemical Formula 4-1, R ₁₆ to R ₂₀ are hydrogen atoms.

Example 4: Preparation of flame retardant resin for air filter binder

In the same manner as in Example 3, a flame retardant resin for an air filter binder was prepared. However, instead of using 190 g of the compound represented by the formula (4-1) when preparing the emulsion, using 430 g of the compound represented by the formula (4-1), as shown in Table 1 below, having the pH, solid content and nitrogen content A flame retardant resin for an air filter binder, which is a polymer containing a repeating unit represented by Chemical Formula 1-2, was prepared.

[Formula 1-2]

In Formula 1-2, R ₇ is a methyl group, R ₁₂ is an ethyl group, R ₁ to R ₆ , R ₈ to R ₁₁ , R ₁₃ to R ₂₀ are hydrogen atoms, n is the weight average molecular weight of the polymer ( Mw) is a rational number that satisfies 230,000 to 240,000.

Example 5: Preparation of flame retardant resin for air filter binder

In the same manner as in Example 1, a flame retardant resin for an air filter binder was prepared. However, instead of using 140g of the compound represented by the formula (5-1) when preparing the emulsion, using the compound 61g represented by the formula (5-1), as shown in Table 1, the following formula 2 having a pH, solid content and nitrogen content A flame retardant resin for an air filter binder was prepared, which is a polymer containing a repeating unit represented by -3.

[Formula 2-3]

In Chemical Formula 2-3, R ₇ is a methyl group, R ₁₂ is an ethyl group, R ₁ to R ₆ , R ₈ to R ₁₁ , R ₁₃ to R ₁₇ , and R ₂₁ are hydrogen atoms, and m is a polymer. It is a rational number that satisfies the weight average molecular weight (Mw) 120,000 to 130,000.

Example 6: Preparation of flame retardant resin for air filter binder

In the same manner as in Example 1, a flame retardant resin for an air filter binder was prepared. However, when preparing the emulsion, instead of using 140 g of the compound represented by Formula 5-1, and using 495 g of the compound represented by Formula 5-1, as shown in Table 1 below, the following Formula 2 having a pH, solid content, and nitrogen content A flame retardant resin for air filter binder, which is a polymer containing a repeating unit represented by -4, was prepared.

[Formula 2-4]

In Formula 2-4, R ₇ is a methyl group, R ₁₂ is an ethyl group, R ₁ to R ₆ , R ₈ to R ₁₁ , R ₁₃ to R ₁₇ , and R ₂₁ are hydrogen atoms, m is a polymer It is a rational number that satisfies the weight average molecular weight (Mw) 250,000 to 260,000.

Example 7: Preparation of flame retardant resin for air filter binder

In the same manner as in Example 3, a flame retardant resin for an air filter binder was prepared. However, instead of using 190 g of the compound represented by the formula (4-1) when preparing the emulsion, using 90 g of the compound represented by the formula (4-1), as shown in Table 1 below, having the pH, solid content and nitrogen content A flame retardant resin for an air filter binder, which is a polymer including a repeating unit represented by Chemical Formula 1-3, was prepared.

[Formula 1-3]

In Chemical Formula 1-3, R ₇ is a methyl group, R ₁₂ is an ethyl group, R ₁ to R ₆ , R ₈ to R ₁₁ , R ₁₃ to R ₂₀ are hydrogen atoms, n is the weight average molecular weight of the polymer ( Mw) is a rational number that satisfies 140,000 to 150,000.

Example 8: Preparation of flame retardant resin for air filter binder

In the same manner as in Example 3, a flame retardant resin for an air filter binder was prepared. However, instead of using 190 g of the compound represented by the formula (4-1) when preparing the emulsion, using 735 g of the compound represented by the formula (4-1), as shown in Table 1 below, having the pH, solid content and nitrogen content A flame retardant resin for an air filter binder, which is a polymer containing a repeating unit represented by Chemical Formula 1-4, was prepared.

[Formula 1-3]

In Chemical Formula 1-3, R ₇ is a methyl group, R ₁₂ is an ethyl group, R ₁ to R ₆ , R ₈ to R ₁₁ , R ₁₃ to R ₂₀ are hydrogen atoms, n is the weight average molecular weight of the polymer ( Mw) is a rational number that satisfies 280,000 to 290,000.

Example 9: Preparation of flame retardant resin for air filter binder

In the same manner as in Example 1, a flame retardant resin for an air filter binder was prepared. However, when preparing the emulsion, instead of using 140g of the compound represented by the formula (5-1), using 210g of the compound represented by the formula (10), as shown in Table 1 below to the formula 11-1 having a pH, solid content and nitrogen content A flame-retardant resin for an air filter binder, which is a polymer containing the repeating units displayed, was prepared.

[Formula 10]

In Chemical Formula 10, R ₂₄ is a butyl group, and R ₂₅ to R ₂₉ are hydrogen atoms.

 [Formula 11-1]

In Formula 11-1, R ₇ is a methyl group, R ₁₂ is an ethyl group, R ₁ to R ₆ , R ₈ to R ₁₁ , R ₁₃ to R ₁₅ , R ₂₅ to R ₂₉ are hydrogen atoms, R ₂₄ Is a butyl group, and p is a rational number that satisfies the weight average molecular weight (Mw) of the polymer 250,000 to 260,000.

Example 10: Preparation of flame retardant resin for air filter binder

In the same manner as in Example 9, a flame retardant resin for an air filter binder was prepared. However, instead of using 210g of the compound represented by Formula 10 when preparing the emulsion, using 485g of the compound represented by Formula 10, represented by the following Formula 11-2 having a pH, solid content and nitrogen content as shown in Table 1 below A flame retardant resin for air filter binder, which is a polymer containing repeating units, was prepared.

[Formula 11-2]

In Formula 11-2, R ₇ is a methyl group, R ₁₂ is an ethyl group, R ₁ to R ₆ , R ₈ to R ₁₁ , R ₁₃ to R ₁₅ , R ₂₅ to R ₂₉ are hydrogen atoms, and R ₂₄ Is a butyl group, and p is a rational number that satisfies the weight average molecular weight (Mw) of 350,000 to 360,000 of the polymer.

Example 11: Preparation of flame retardant resin for air filter binder

In the same manner as in Example 9, a flame retardant resin for an air filter binder was prepared. However, when preparing the emulsion, instead of using 210g of the compound represented by the formula (10), using 1365g of the compound represented by the formula 10, as shown in Table 1 below, represented by the following formula 11-3 having a pH, solid content and nitrogen content A flame retardant resin for air filter binder, which is a polymer containing repeating units, was prepared.

[Formula 11-3]

In Formula 11-3, R ₇ is a methyl group, R ₁₂ is an ethyl group, R ₁ to R ₆ , R ₈ to R ₁₁ , R ₁₃ to R ₁₅ , R ₂₅ to R ₂₉ are hydrogen atoms, and R ₂₄ Is a butyl group, and p is a rational number that satisfies the weight average molecular weight (Mw) of the polymer of 450,000 to 460,000.

Example 12: Preparation of flame retardant resin for air filter binder

In the same manner as in Example 9, a flame retardant resin for an air filter binder was prepared. However, when preparing the emulsion, instead of using 210 g of the compound represented by Formula 10, and using 3455 g of the compound represented by Formula 10, as shown in Table 1 below, represented by the following Formula 11-4 having a pH, solid content, and nitrogen content A flame retardant resin for air filter binder, which is a polymer containing repeating units, was prepared.

[Formula 11-3]

In Formula 11-3, R ₇ is a methyl group, R ₁₂ is an ethyl group, R ₁ to R ₆ , R ₈ to R ₁₁ , R ₁₃ to R ₁₅ , R ₂₅ to R ₂₉ are hydrogen atoms, and R ₂₄ Is a butyl group, and p is a rational number satisfying the weight average molecular weight (Mw) of the polymer of 700,000 to 710,000.

The flame-retardant resin for the air filter binder prepared in Example 12 was gelled, and thus it could not be used as an air filter binder.

Comparative Example 1: Preparation of flame retardant resin for air filter binder

In the same manner as in Example 1, a flame retardant resin for an air filter binder was prepared. However, when preparing the emulsion, without using 140g of the compound represented by the formula (5-1), as shown in Table 1 below, the air filter is a polymer comprising a repeating unit represented by the following formula 3-1 having a pH, solid content and nitrogen content A flame retardant resin for a binder was prepared.

 [Formula 3-1]

In Chemical Formula 3-1, R ₇ is a methyl group, and R ₁₂ is an ethyl group, R ₁ to R ₆ , R ₈ to R ₁₁ , R ₁₃ to R ₁₅ are hydrogen atoms, and l is a rational number that satisfies the weight average molecular weight (Mw) of the polymer of 10,000 to 500,000.

In Table 1, solid content, viscosity and pH of the flame retardant resin for air filter binders prepared in Examples 1 to 12 and Comparative Example 1 were measured by the following methods.

(1) Solid content

The flame retardant resin for the air filter binders prepared in Examples 1 to 12 and Comparative Example 1 was measured on Al silver foil having a radius of 30.5 mm and a depth of 30 mm at a flat foil of 1.0 ± 0.1 g, respectively, in a hot air oven set at 135 ° C in advance. After drying for 1 hour, the solid content was measured by analyzing the content of the non-volatile material.

(2) viscosity

Each of the flame retardant resins for air filter binders prepared in Examples 1 to 12 and Comparative Example 1 was put in a 250 ml beaker, respectively, and the viscosity was measured using a Brookfield viscometer at 25 ° C.

(3) pH

The flame retardant resins for the air filter binders prepared in Examples 1 to 12 and Comparative Example 1 were put in 250 ml beakers, respectively, and the pH was measured using a pH meter adjusted to 25 ° C.

Experimental Example 1: Measurement of physical properties of flame retardant resin for air filter binder

The air permeability, rupture strength, filtration efficiency, pressure loss, flame retardancy, weight balance, storage stability and dilution ability of the flame retardant resins for air filter binders prepared in Examples 1 to 12 and Comparative Example 1 were measured based on the following methods. The results are shown in Tables 2 to 4 below.

(1) Aeration

The air filters were impregnated with flame retardant resins for the air filter binders prepared in Examples 1 to 12 and Comparative Example 1, respectively, and dried at 160 ° C for 7 minutes to prepare air filters having a basis weight of 30 to 40 g. As the air filter media, paper media for air filters was used. After cutting the manufactured air filter to 10 cm × 10 cm, the air permeability was measured using a permeability meter.

(2) Burst strength

The air filters were impregnated with flame retardant resins for the air filter binders prepared in Examples 1 to 12 and Comparative Example 1, respectively, and dried at 160 ° C for 7 minutes to prepare air filters having a basis weight of 30 to 40 g. As the air filter media, paper media for air filters was used. After cutting the prepared air filter to 10 cm × 10 cm, the burst strength was measured using a burst strength meter.

(3) Filtration efficiency, pressure loss

The air filters were impregnated with flame retardant resins for the air filter binders prepared in Examples 1 to 12 and Comparative Example 1, respectively, and dried at 160 ° C for 7 minutes to prepare air filters having a basis weight of 30 to 40 g. As the air filter media, paper media for air filters was used. After cutting the produced air filter to 20 cm × 20 cm, the filtration efficiency and pressure loss were measured using a TSI device. The particle size of NaCl used for the measurement was 0.3 µm, and the air velocity was measured to be constant at 5.33 cm / s.

(4) Flame retardant

The air filters were impregnated with flame retardant resins for the air filter binders prepared in Examples 1 to 12 and Comparative Example 1, and then dried at 160 ° C. for 7 minutes to prepare air filters having a basis weight of 30 to 40 g. As the air filter media, paper media for air filters was used. After cutting the manufactured air filter to 14 inches × 14 inches, the flame retardancy was measured using a FMVSS-302 flame retardance measurement device.

When measuring, the specimen was placed horizontally, and a 38 mm flame was contacted for 15 seconds to measure the combustion rate for 354 mm. The acceptance criteria for flame retardancy are: ① If it does not burn itself, the combustion speed is within 102mm / min. ② When it burns by itself, the combustion distance is within 51mm and within 60 seconds.

(5) Weight balance

The flame retardant resin for the air filter binders prepared in Examples 1 to 12 and Comparative Example 1 was measured in Al silver foil paper having a radius of 30.5 mm and a depth of 30 mm at a flat foil of 1.0 ± 0.1 g, respectively, and in a hot air oven set at 135 ° C in advance. Dry for 1 hour. Subsequently, 10 ± 5 mg of a non-volatile material is weighed in a TGA (thermogravimetric analyzer) device, and the temperature is 300 ° C, 500 ° C, and 900 ° C through a temperature increase temperature of 25 to 900 ° C and a temperature increase rate of 10 ° C / min. The residual rate was measured.

(6) Storage stability

For the flame retardant resins for air filter binders prepared in Examples 1 to 12 and Comparative Example 1, the presence or absence of gelation was measured at 5 ° C, 25 ° C, and 45 ° C for 30 days, respectively.

(7) Water dilution ability

The flame retardant resins for air filter binders prepared in Examples 1 to 12 and Comparative Example 1 were each weighed 5.0 ± 0.1 g in a 100 ml beaker, and water was added to measure the dilution ability of the flame retardant resin. The dilution ability was obtained through Equation 1 below.

[Equation 1]

When the dilution ability obtained in Equation 1 is 2000% or more, it was described as ∞.

Referring to Tables 2 to 4, it was confirmed that the flame retardant resins prepared in Examples 1 to 4 not only have excellent physical properties in air permeability, bursting strength, filtration efficiency, pressure loss and flame retardancy, but also excellent storage stability. .

In addition, it was confirmed that the flame-retardant resins prepared in Comparative Example 1 had lower rupture strength than the flame-retardant resins prepared in Examples 1 to 4, and lacked flame retardancy.

In addition, it was confirmed that the flame-retardant resins prepared in Example 5 had lower rupture strength than the flame-retardant resins prepared in Examples 1 to 4, and lacked flame retardancy.

In addition, it was confirmed that the flame retardant resins prepared in Example 6 had lower air permeability and higher pressure loss than the flame retardant resins prepared in Examples 1 to 4.

In addition, it was confirmed that the flame-retardant resins prepared in Example 7 were less flame retardant than the flame-retardant resins prepared in Examples 1-4.

In addition, it was confirmed that the flame-retardant resins prepared in Example 8 had lower air permeability and higher pressure loss than the flame-retardant resins prepared in Examples 1-4.

In addition, it was confirmed that the flame-retardant resin prepared in Example 9 was less flame retardant than the flame-retardant resin prepared in Examples 1-4.

In addition, it was confirmed that the flame-retardant resins prepared in Example 10 were not only less flame-retardant than the flame-retardant resins prepared in Examples 1 to 4, but also had significantly reduced storage stability.

In addition, it was confirmed that the flame-retardant resins prepared in Example 11 had lower air permeability, higher pressure loss, and significantly lower storage stability than the flame-retardant resins prepared in Examples 1-4.

In addition, the flame-retardant resin prepared in Example 12 was gelled, and thus it could not be used as an air filter binder.

Simple modifications or changes of the present invention can be easily carried out by those skilled in the art, and all such modifications or changes can be considered to be included in the scope of the present invention.

Claims (15)

It contains a polymer comprising a repeating unit represented by the following formula (1), the nitrogen content is 1.5 to 4.5% by weight, the solid content is 39.5% by weight or more, the pH is 6.0 to 7.0, the viscosity at 25 ℃ 20 ~ 30cPs Flame retardant resin for air filter binder, characterized in that;
[Formula 1]

In Chemical Formula 1, R ₁ to R ₂ , R ₅ to R ₆ , R ₉ to R ₁₁ , R ₁₃ to R ₂₀ are each independently a hydrogen atom, C1 to C12 straight-chain alkyl group, C3 to C12 grinding Type alkyl group, phenyl group or alkylphenyl group, R ₇ and R ₁₂ are each independently a C1 to C12 straight chain alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group, and R ₃ , R ₄ and R ₈ are Hydrogen atom, n is a rational number that satisfies the weight average molecular weight (Mw) of the polymer of 10,000 to 500,000.
It includes a polymer comprising a repeating unit represented by the following formula (2), the nitrogen content is 1.5 to 4.5% by weight, the solid content is 39.5% by weight or more, the pH is 6.0 to 7.0, the viscosity at 25 ℃ 20 ~ 30cPs Flame retardant resin for air filter binder, characterized in that;
[Formula 2]

In Chemical Formula 2, R ₁ to R ₂ , R ₅ to R ₆ , R ₉ to R ₁₁ , R ₁₃ to R ₁₇ , and R ₂₁ are each independently a hydrogen atom, a C1 to C12 straight-chain alkyl group, C3 ~ C12 is a pulverized alkyl group, a phenyl group or an alkylphenyl group, R ₇ and R ₁₂ are each independently a C1 ~ C12 straight alkyl group, C3 ~ C12 pulverized alkyl group, phenyl group or alkylphenyl group, R ₃ , R ₄ And R ₈ is a hydrogen atom, and m is a rational number satisfying the weight average molecular weight (Mw) of the polymer of 10,000 to 500,000.
delete delete A polymer comprising a repeating unit represented by the following formula (3) and a compound represented by the following formula (4) are polymerized in a weight ratio of 1: 0.08 to 0.33 to prepare a polymer comprising the repeating unit represented by the following formula (1),
The polymer containing the repeating unit represented by Chemical Formula 3 is based on 100 parts by weight of Compound represented by Chemical Formula 6, 272 to 408 parts by weight of Compound represented by Chemical Formula 7, and 4,000 to 6,000 weight of Compound represented by Chemical Formula 8 below. Method for producing a flame-retardant resin for an air filter binder, characterized in that it is prepared by polymerizing parts 9,040 to 13,560 parts by weight of the compounds represented by the following formula (9);
[Formula 1]

In Chemical Formula 1, in Chemical Formula 1, R ₁ to R ₂ , R ₅ to R ₆ , R ₉ to R ₁₁ , and R ₁₃ to R ₂₀ are each independently a hydrogen atom, a C1 to C12 straight-chain alkyl group. , C3 ~ C12 is a pulverized alkyl group, a phenyl group or an alkylphenyl group, R ₇ and R ₁₂ are each independently a C1 ~ C12 linear alkyl group, C3 ~ C12 pulverized alkyl group, phenyl group or alkylphenyl group, R ₃ , R ₄ and R ₈ are hydrogen atoms, n is a rational number that satisfies the weight average molecular weight (Mw) of the polymer of 10,000 to 500,000,
[Formula 3]

In Chemical Formula 3, R ₁ to R ₂ , R ₅ to R ₆ , R ₉ to R ₁₁ , R ₁₃ to R ₁₅ are each independently a hydrogen atom, C1 to C12 straight-chain alkyl group, C3 to C12 grinding Type alkyl group, phenyl group or alkylphenyl group, R ₇ and R ₁₂ are each independently a C1 to C12 straight chain alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group, and R ₃ , R ₄ and R ₈ are Hydrogen atom, l is a rational number that satisfies the weight average molecular weight (Mw) of the polymer of 10,000 to 500,000,
[Formula 4]

In Chemical Formula 4, R ₁₆ to R ₂₀ are each independently a hydrogen atom, a C1 to C12 linear alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group, or an alkylphenyl group,
[Formula 6]

In Chemical Formula 6, R ₁ and R ₂ are each independently a hydrogen atom, a C1 to C12 linear alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group, or an alkylphenyl group,
[Formula 7]

In the formula (7), R ₅ and R ₆ are each independently a hydrogen atom, C1 to C12 linear alkyl group, C3 to C12 pulverized alkyl group, phenyl group or alkylphenyl group, R ₇ is C1 to C12 straight chain type An alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group,
[Formula 8]

In Chemical Formula 8, R ₉ to R ₁₁ are each independently a hydrogen atom, a C1 to C12 linear alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group, and R ₁₂ is a C1 to C12 straight chain type An alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group,
[Formula 9]

In the formula (9), R ₁₃ to R ₁₅ are each independently a hydrogen atom, a C1 to C12 linear alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group.
A polymer comprising a repeating unit represented by the following formula 3 and a compound represented by the following formula 5 are polymerized in a weight ratio of 1: 0.07 to 0.22 to prepare a polymer including the repeating unit represented by the following formula 2,
The polymer containing the repeating unit represented by Chemical Formula 3 is based on 100 parts by weight of Compound represented by Chemical Formula 6, 272 to 408 parts by weight of Compound represented by Chemical Formula 7, and 4,000 to 6,000 weight of Compound represented by Chemical Formula 8 below. Method for producing a flame-retardant resin for an air filter binder, characterized in that it is prepared by polymerizing parts 9,040 to 13,560 parts by weight of the compounds represented by the following formula (9);
[Formula 2]

In Chemical Formula 2, R ₁ to R ₂ , R ₅ to R ₆ , R ₉ to R ₁₁ , R ₁₃ to R ₁₇ , and R ₂₁ are each independently a hydrogen atom, a C1 to C12 straight-chain alkyl group, C3 ~ C12 is a pulverized alkyl group, a phenyl group or an alkylphenyl group, R ₇ and R ₁₂ are each independently a C1 ~ C12 straight alkyl group, C3 ~ C12 pulverized alkyl group, phenyl group or alkylphenyl group, R ₃ , R ₄ And R ₈ is a hydrogen atom, m is a rational number satisfying the weight average molecular weight (Mw) of the polymer of 10,000 to 500,000,
[Formula 3]

In Chemical Formula 3, R ₁ to R ₂ , R ₅ to R ₆ , R ₉ to R ₁₁ , R ₁₃ to R ₁₅ are each independently a hydrogen atom, C1 to C12 straight-chain alkyl group, C3 to C12 grinding Type alkyl group, phenyl group or alkylphenyl group, R ₇ and R ₁₂ are each independently a C1 to C12 straight chain alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group, and R ₃ , R ₄ and R ₈ are Hydrogen atom, l is a rational number that satisfies the weight average molecular weight (Mw) of the polymer of 10,000 to 500,000,
[Formula 5]

In Chemical Formula 5, R ₁₆ , R ₁₇ and R ₂₁ are each independently a hydrogen atom, a C1 to C12 linear alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group, or an alkylphenyl group,
[Formula 6]

In Chemical Formula 6, R ₁ and R ₂ are each independently a hydrogen atom, a C1 to C12 linear alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group, or an alkylphenyl group,
[Formula 7]

In the formula (7), R ₅ and R ₆ are each independently a hydrogen atom, C1 to C12 linear alkyl group, C3 to C12 pulverized alkyl group, phenyl group or alkylphenyl group, R ₇ is C1 to C12 straight chain type An alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group,
[Formula 8]

In Chemical Formula 8, R ₉ to R ₁₁ are each independently a hydrogen atom, a C1 to C12 linear alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group, and R ₁₂ is a C1 to C12 straight chain type An alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group,
[Formula 9]

In the formula (9), R ₁₃ to R ₁₅ are each independently a hydrogen atom, a C1 to C12 linear alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group.
delete A first step of preparing an emulsion;
After stirring the solution of a mixture of a surfactant and a solvent, the second step of raising the temperature to 64 ~ 96 ℃;
A third step of preparing the flame retardant resin for the air filter binder by performing the polymerization reaction while uniformly adding the prepared emulsion to the heated solution for 1 to 5 hours and maintaining the temperature for 1 to 3 hours; And
A fourth step of controlling cooling and pH to 40-60 ° C; Including,
The emulsion is based on 100 parts by weight of the compound represented by the formula (6), 272 to 408 parts by weight of the compound represented by the formula (7), 4,000 to 6,000 parts by weight of the compound represented by the formula (8), compound 9,040 represented by the formula (9) ~ 13,560 parts by weight of a nitrogen-based monomer, a surfactant and a solvent, a method for producing a flame retardant resin for an air filter binder, characterized by being prepared;
[Formula 6]

In Chemical Formula 6, R ₁ and R ₂ are each independently a hydrogen atom, a C1 to C12 linear alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group, and
[Formula 7]

In the formula (7), R ₅ and R ₆ are each independently a hydrogen atom, C1 to C12 linear alkyl group, C3 to C12 pulverized alkyl group, phenyl group or alkylphenyl group, R ₇ is C1 to C12 straight chain type An alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group,
[Formula 8]

In Chemical Formula 8, R ₉ to R ₁₁ are each independently a hydrogen atom, a C1 to C12 linear alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group, and R ₁₂ is a C1 to C12 straight chain type An alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group,
[Formula 9]

In the formula (9), R ₁₃ to R ₁₅ are each independently a hydrogen atom, a C1 to C12 linear alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group or an alkylphenyl group.
The method of claim 8,
The nitrogen-based monomer is a method for producing a flame retardant resin for an air filter binder, characterized in that it comprises at least one of a compound represented by the following formula (4) and a compound represented by the following formula (5);
[Formula 4]

In Chemical Formula 4, R ₁₆ to R ₂₀ are each independently a hydrogen atom, a C1 to C12 linear alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group, or an alkylphenyl group,
[Formula 5]

In Chemical Formula 5, R ₁₆ , R ₁₇ and R ₂₁ are each independently a hydrogen atom, a C1 to C12 linear alkyl group, a C3 to C12 pulverized alkyl group, a phenyl group, or an alkylphenyl group.
The method of claim 8,
The surfactant is sodium lauryl sulfate, sodium dodecyl sulfate, ammonium lauryl sulfate, ammonium dodecyl sulfate, triethylamine lauryl sulfate (Triethylamine lauryl sulfate) and triethylamine dodecyl sulfate (Triethylamine dodecyl sulfate) contains at least one,
The solvent is a method for producing a flame retardant resin for air filter binder, characterized in that it contains water
The method according to any one of claims 8 to 10,
After drying the prepared flame-retardant resin at 125 ~ 145 ℃ for 30 ~ 90 minutes to volatilize the volatiles, 200 at a heating temperature of 25 ~ 1000 ℃, heating rate 8 ~ 12 ℃ / min through a thermogravimetric analyzer (Thermogravimetric Analyzer) 200 Air filter binder, characterized in that the weight balance measured at 400 ° C is 98% by weight or more, the weight residual rate measured at 400 to 600 ° C is 5% by weight or more, and the weight residual rate measured at 800 to 1,000 ° C is 0.6% by weight or more. Dragon flame retardant resin manufacturing method.
An air filter comprising a flame retardant resin for an air filter binder according to any one of claims 1 and 2.
The method of claim 12,
The air filter is an air filter for air cleaners, air filters for air conditioning or air filters for automobiles.
The method of claim 12,
Air filter characterized in that the air permeability is 600 ~ 650 L / m ² / s, and the bursting strength is 2.2 ~ 2.7 kg / cm ² .
The method of claim 12,
Air filter characterized in that the filtration efficiency is 10 ~ 12%, and the pressure loss is 1.0 ~ 3.0 mmAq.