TWI571493B - Plastic composition and fiber masterbatch - Google Patents

Description

Plastic composition and fiber masterbatch

This invention relates to a plastic composition and fiber masterbatch, and more particularly to a plastic composition having a low glass transition temperature and a high melt index and a fiber masterbatch.

Due to its excellent heat resistance, chemical resistance, flame retardancy and other properties, polycarbonate (polycarbonate, PC), polyphenylene sulfide (PPS), polyether ether ketone (PEEK), Polyamide (PA), polyamide imide (PAI), polyetherimide (PEI), polyethylene terephthalate (PET), poly bias A thermoplastic resin called "engineering plastic" such as polyvinylidene fluoride (PVDF) has been widely used in various fields.

However, there are still restrictions on the use of engineering plastics. For example, the processing temperature of polyether sulfimine is quite high (between 350 and 380 ° C), which is for general machines. In the case of high-temperature molding of polyvinylidene fluoride, if the processing temperature is 320° C. or higher, hydrofluoric acid having strong corrosive properties is likely to be generated. Therefore, how to improve the applicability of engineering plastics is still an important topic for active research.

The present invention provides a plastic composition which has a low glass transition temperature, a high melt index and electrostatic dissipative property, and thus has good processability, fluidity and applicability, and is suitable for use in the production of fiber masterbatches.

The plastic composition of the present invention comprises a plastic and an ionic liquid, wherein the content of the ionic liquid is from 0.5% by weight to 20% by weight based on the total weight of the plastic.

In an embodiment of the invention, the plastic comprises polyetherimide (PEI), polyethylene terephthalate (PET) or polyvinylidene fluoride (PVDF). .

In an embodiment of the invention, the ionic liquid includes a structure represented by at least one of the formulae (a) to (q):

Wherein R ¹ and R ² are each independently -C _x H _y SO ₃ ^- , -C _x H _y PO ₃ H ^- , -(C _x H _y )(PO ₃ H ₂ )PO ₃ H ^- , -C _x H _y COO ^- , -C _x H _y SO ₃ H, -C _x H _y PO ₃ H ₂ , -(C _x H _y )(PO ₃ H ₂ )PO ₃ H ₂ or -C _x H _y COOH, wherein x is 1 to 6, y is 2 to 12, and R ³ to R ⁹ are each independently a hydrido, substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, Substituted or unsubstituted alkenyl having 2 to 6 carbon atoms, substituted or unsubstituted aryl having 6 to 30 carbon atoms, substituted or unsubstituted 3 a cycloalkyl group of - 30 carbon atoms, -(Z ¹ )-O-(Z ² )-OH, wherein Z ¹ and Z ² are independently substituted or unsubstituted, having 1 to 6 carbons An alkylene of the atom, or -(Z ³ )-OZ ⁴ , wherein Z ³ is a substituted or unsubstituted alkylene group having 1 to 6 carbon atoms, and Z ⁴ is substituted or unsubstituted the substituted alkyl group having from 1 to 6 carbon atoms; or R ¹ to R ⁹ are each independently a hydride, substituted or non-substituted alkyl having 1 to 6 carbon atoms, substituted or non- And an alkenyl group having 2 to 6 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 30 carbon atoms, -(Z ¹ )-O-(Z ² )-OH, wherein Z ¹ and Z ² are each independently a substituted or unsubstituted alkylene group having 1 to 6 carbon atoms, or -(Z ³ )- OZ ⁴ , wherein Z ³ and Z ⁴ are each independently a substituted or unsubstituted alkylene group having 1 to 6 carbon atoms, wherein the substituted alkyl, alkenyl, aryl, cycloalkyl, An alkylene group is substituted with an alkoxy group, an alkenyl group, an alkynyl group, an aryl group, a heteroaryl group, an aldehyde group, An amino group, an ester group, an ether group, a halogen atom, a hydroxyl group, a ketone group, a nitro group, a silyl group, a sulfonyl group (sulfonyl), sulfoxide group, sulfate or thiol group.

In an embodiment of the invention, the ionic liquid comprises an anion, and the anion comprises F ^- , Cl ^- , Br ^- , I ^- , ClO ₄ ^- , SCN ^- , OCN ^- , BF ₄ ^- , PF ₆ ^- , AsF ₆ ^- , SbF ₆ ^- , NO ₃ ^- , NO ₂ ^- , N(SO ₂ CF ₃ ) ₂ ^- , SO ₄ ^2- , HSO ₄ ^- , PO ₄ ^3- , HPO ₄ ^2- , H ₂ PO ₄ ^- , CF ₃ CO ₂ ^- , CO ₃ ^2- , citrate or a carboxylate having 2 to 7 carbon atoms.

In an embodiment of the invention, the ionic liquid is a fluorine-containing ionic liquid, and the ionic liquid comprises an anion, and the anion comprises BF ₄ ^- , PF ₆ ^- , AsF ₆ ^- , SbF ₆ ^- , N(SO ₂ CF ₃ ) ₂ ^- , or CF ₃ CO ₂ ^- .

In an embodiment of the invention, the ionic liquid comprises a structure represented by the formula (1) or the formula (2):

In an embodiment of the invention, the plastic composition further includes silver nanoparticles, wherein the content of the silver nanoparticles is 9000 ppm to 11,000 ppm based on the total weight of the plastic composition.

The fiber masterbatch of the present invention is made using the plastic composition as described above.

Based on the above, the plastic composition of the present invention has a low glass transition temperature and a high melt index by including plastics and ionic liquids in a specific content range. And electrostatic dissipative properties, and thus have good processability, fluidity and applicability.

The above described features and advantages of the present invention will be more apparent from the following description.

In the present specification, the range represented by "a value to another value" is a schematic representation that avoids enumerating all the values in the range in the specification. Therefore, the recitation of a particular range of values is intended to include any value in the range of values and the range of values defined by any value in the range of values, as in the specification. The scope is the same.

Herein, the structure of a polymer or a group is sometimes represented by a skeleton formula. This representation can omit carbon atoms, hydrogen atoms, and carbon-hydrogen bonds. Of course, if the atom or atomic group is clearly drawn in the structural formula, the person who prescribes it shall prevail.

In order to prepare a plastic composition which has good processability and applicability and is suitable for the production of fiber masterbatch, the present invention proposes a plastic composition which achieves the above advantages. Hereinafter, the specific embodiments are described as examples in which the present invention can be implemented.

A plastic composition according to an embodiment of the present invention includes a plastic and an ionic liquid, wherein the content of the ionic liquid is 0.5 wt% to the total weight of the plastic to 20% by weight, preferably 0.5% by weight to 5% by weight.

In the present embodiment, the plastic is, for example, an engineering plastic. Specifically, the plastic includes, for example, polyetherimide (PEI), polyethylene terephthalate (PET), or polyvinylidene fluoride (PVDF).

In the present embodiment, the ionic liquid may include a structure shown by at least one of the formulae (a) to (q):

In detail, in the structures represented by the above formulas (a) to (q), R ¹ and R ² may independently be -C _x H _y SO ₃ ^- , -C _x H _y PO ₃ H ^- , - (C _x H _y )(PO ₃ H ₂ )PO ₃ H ^- , -C _x H _y COO ^- , -C _x H _y SO ₃ H, -C _x H _y PO ₃ H ₂ , -(C _x H _y (PO ₃ H ₂ )PO ₃ H ₂ or -C _x H _y COOH, wherein x is from 1 to 6, y is from 2 to 12, and R ³ to R ⁹ are independently of each other as a hydrido, a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 6 carbon atoms, substituted or unsubstituted having 6 An aryl group of 30 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 30 carbon atoms, -(Z ¹ )-O-(Z ² )-OH, wherein Z ¹ and Z ² may independently be each other a substituted or unsubstituted alkylene having 1 to 6 carbon atoms, or -(Z ³ )-OZ ⁴ , wherein Z ³ may be substituted or not a substituted alkyl group having 1 to 6 carbon atoms, Z ⁴ may be a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms; or R ¹ to R ⁹ may be independently of each other as a hydride Basis Or unsubstituted alkyl group having 1 to 6 carbon atoms, substituted or unsubstituted alkenyl group having 2 to 6 carbon atoms, substituted or unsubstituted aryl having 6 to 30 carbon atoms a substituted, unsubstituted or substituted cycloalkyl group having from 3 to 30 carbon atoms, -(Z ¹ )-O-(Z ² )-OH, wherein Z ¹ and Z ² may independently be substituted or not a substituted alkyl group having 1 to 6 carbon atoms, or -(Z ³ )-OZ ⁴ wherein Z ³ and Z ⁴ may independently of one another have 1 to 6 carbon atoms which may be substituted or unsubstituted. An alkyl group wherein the substituted alkyl, alkenyl, aryl, cycloalkyl, alkylene group is substituted with an alkoxy, alkenyl, alkynyl group (alkoxy) Alkynyl), aryl, heteroaryl, aldehyde group, amino, ester group, ether group, halogen atom, hydroxyl , ketone group, nitro, silyl, sulfonyl, sulfoxide group, sulfate or thiol group.

That is, the structures represented by the above formulas (a) to (q) may have both a positively charged moiety and a negatively charged alkoxide group, or a positively charged cation, respectively.

Further, in the present embodiment, when the ionic liquid includes at least one of the structures represented by the formulae (a) to (q) belonging to the positively charged cation, the ionic liquid further includes an anion. That is to say, at this time, the ionic liquid is composed of a cation and an anion.

In detail, in one embodiment, the anion comprises F ^- , Cl ^- , Br ^- , I ^- , ClO ₄ ^- , SCN ^- , OCN ^- , BF ₄ ^- , PF ₆ ^- , AsF ₆ ^- , SbF ₆ ^- , NO ₃ ^- , NO ₂ ^- , N(SO ₂ CF ₃ ) ₂ ^- , SO ₄ ^2- , HSO ₄ ^- , PO ₄ ^3- , HPO ₄ ^2- , H ₂ PO ₄ ^- , CF ₃ CO ₂ ^- , CO ₃ ^2- , citrate or a carboxylate having 2 to 7 carbon atoms. In another embodiment, the anion comprises BF ₄ ^- , PF ₆ ^- , AsF ₆ ^- , SbF ₆ ^- , N(SO ₂ CF ₃ ) ₂ ^- , or CF ₃ CO ₂ ^- , and at this time, the ionic liquid It is a fluorine-containing ionic liquid.

In view of the above, in one embodiment, the ionic liquid comprises the structure shown in formula (1) or formula (2):

Further, in the present embodiment, the ionic liquid may be a single ionic liquid or a mixture of two or more ionic liquids.

Further, in the present embodiment, the plastic composition may further include silver nanoparticles, from the viewpoint of improving the processability and fluidity of the plastic composition, wherein the silver nanoparticle is based on the total weight of the plastic composition. The content is from 9000 ppm to 11000 ppm, preferably from 9500 ppm to 10500 ppm. Additionally, the silver nanoparticles can be prepared using any method known to those of ordinary skill in the art.

It should be noted that, in the present embodiment, the plastic composition has a low glass transition temperature and a high melt index through the inclusion of plastics and ionic liquids in a specific content range, mainly because the ionic liquid has the characteristics of a highly polar solvent. Therefore, mixing the ionic liquid with the plastic can reduce the interaction force between the molecular chains, thereby reducing the degree of alignment of the molecular chains of the plastic and the intermolecular interaction force, thereby increasing the processing temperature range of the plastic. Further, in the present embodiment, the plastic composition is also electrostatically dissipative through the inclusion of plastic and an ionic liquid within a specific content range. In this way, the plastic composition of the embodiment has good processability, Liquidity and applicability. According to the foregoing description, in the present embodiment, the ionic liquid acts as a processing aid.

Further, in the present embodiment, the ionic liquid does not undergo cracking and volatilization at the processing temperature of the plastic. That is to say, in the plastic composition, the kind of the ionic liquid can be adjusted depending on the kind of the plastic used and the application of the plastic composition.

In addition, since the plastic composition has the above advantages, it can be used in many fields for many purposes. For example, the plastic composition can be prepared by a molding process such as injection molding, extrusion or blow molding to prepare a film, a film, a coating, a coating film or a molded part; or a plastic composition can be used as a spinning process. Fiber is prepared from the raw materials. Hereinafter, the plastic composition will be described as an example of a raw material in a spinning process.

Another embodiment of the present invention provides a fiber masterbatch which is produced using the plastic composition of any of the foregoing embodiments.

In detail, the method for producing the fiber masterbatch includes supplying the plastic composition to an extruder for kneading and dispersing a process to form a fiber mother particle. Wherein, the above-mentioned extruder can be a single-axis extruder or a two-axis extruder.

It is worth noting that, as described above, since the plastic composition has a low glass transition temperature, a high melt index, and a static dissipative property, the fiber masterbatch produced by using the same also has a low glass transition temperature, a high melt index, and Electrostatic dissipative, and in turn has good processability, fluidity and applicability.

Features of the present invention will be more specifically described below with reference to Embodiments 1 to 12 and Comparative Examples 1 to 3. Although the following examples are described, the materials used, their amounts and ratios may be appropriately changed without exceeding the scope of the present invention. Rate, processing details, processing flow, and more. Therefore, the invention should not be construed restrictively by the examples described below.

The information on the main materials and equipment used to prepare the fiber masterbatch of Examples 1 to 12 and Comparative Examples 1 to 3 is as follows.

Polyethylene terephthalate (plastic) (hereinafter referred to as PET): manufactured by Shinko Synthetic Fiber Co., Ltd., having an intrinsic viscosity (I.V.) of 0.64 dl/g (dL/g).

Polyetherimide (plastic) (hereinafter referred to as PEI): ULTEM 1010 PEI manufactured by Sabic.

Polyvinylidene fluoride (plastic) (hereinafter referred to as PVDF): Kynar 705 manufactured by Arkema Corporation.

Ionic liquid: the structure represented by the above formula (1) or the structure represented by the above formula (2).

Silver nanoparticle: 0.1625 g of silver nitrate was taken and added to 25 mL of pure water to become an aqueous solution of silver nitrate. Then, 0.5 g of sodium citrate was added to 25 mL of pure water to prepare an aqueous solution of sodium citrate. Next, 950 mL of pure water was heated to 100 ° C, and the above 25 mL of silver nitrate solution was added to the 100 ° C pure water and stirred. After the temperature reached 100 ° C again, the aforementioned 25 mL aqueous sodium citrate solution was added and maintained at 100 ° C. After stirring for 1 minute, the heating and cooling were stopped to obtain an aqueous solution of silver nanoparticles.

Two-axis extruder: manufactured by the German company HAAKE.

Example 1

1 kg of PET, 10 g (1 wt%) of the ionic liquid represented by the formula (1) as a processing aid, and 3 liters of acetone were stirred at room temperature to uniformly mix and disperse. After the stirring was uniform, acetone was removed using a rotary concentrator to form the plastic composition of Example 1. Next, the plastic composition was supplied to a biaxial extruder and kneaded at a kneading temperature of 260 to 280 ° C and a screw rotation speed of about 250 rpm to form the fiber mother particles of Example 1.

Example 2

The fiber masterbatch of Example 2 was produced in the same manufacturing procedure as in Example 1, except that the amount of the ionic liquid represented by the formula (1) was different, as shown in Table 1.

Example 3

The fiber masterbatch of Example 3 was produced in the same manufacturing procedure as in Example 2 except that in Example 3, silver nanoparticle was further included, and the detailed usage amount thereof is shown in Table 1.

Example 4

1 kg of PEI, 10 g (1 wt%) of the ionic liquid represented by the formula (1) as a processing aid, and 3 liters of acetone were stirred at room temperature to uniformly mix and disperse. After stirring evenly, acetone was removed using a rotary concentrator to form the plastic composition of Example 4. Next, the plastic composition is supplied to a two-axis extruder The kneading was carried out at a kneading temperature of 310 to 330 ° C and a screw rotation speed of about 200 rpm to form the fiber mother particles of Example 4.

Example 5

The fiber masterbatch of Example 5 was produced in the same manufacturing procedure as in Example 4 except that the amount of the ionic liquid represented by the formula (1) was different, as shown in Table 1.

Example 6

The fiber masterbatch of Example 6 was produced according to the same manufacturing procedure as in Example 5, except that in Example 6, silver nanoparticle was further included, and the detailed usage amount thereof is shown in Table 1.

Example 7

1 kg of PVDF, 5 g (0.5 wt%) of the ionic liquid represented by the formula (1) as a processing aid, and 3 liters of acetone were stirred at room temperature to uniformly mix and disperse. After the stirring was uniform, acetone was removed using a rotary concentrator to form the plastic composition of Example 7. Next, the plastic composition was supplied to a biaxial extruder and was carried out at a kneading temperature of 230 to 250 ° C and a screw rotation speed of about 200 rpm to form the fiber master batch of Example 7.

Example 8 and Example 9

The fiber masterbatches of Example 8 and Example 9 were produced in the same manufacturing procedure as in Example 7, except that the amount of the ionic liquid represented by the formula (1) was different, as shown in Table 1.

Example 10

1 kg of PEI, 10 g (1 wt%) of the ionic liquid represented by the formula (2) as a processing aid, and 3 liters of acetone were stirred at room temperature to uniformly mix and disperse. After the stirring was uniform, acetone was removed using a rotary concentrator to form the plastic composition of Example 10. Next, the plastic composition was supplied to a biaxial extruder and kneaded at a kneading temperature of 310 to 330 ° C and a screw rotation speed of about 200 rpm to form the fiber mother particles of Example 10.

Example 11 and Example 12

The fiber masterbatch of Example 11 and Example 12 was produced according to the same manufacturing procedure as in Example 10 except that the amount of the ionic liquid represented by the formula (2) was different, as shown in Table 1.

Comparative example 1

One kilogram of commercially available PET plastic masterbatch (manufactured by Shin Kong Synthetic Fiber Co., Ltd., having an intrinsic viscosity (I.V.) of 0.64 dl/g (dL/g)) was taken directly.

Comparative example 2

One kilogram of commercially available PEI plastic masterbatch (ULTEM 1010 PEI manufactured by Sabic) was taken directly.

Comparative example 3

One kilogram of commercially available PVDF plastic masterbatch (Kynar 705 manufactured by Arkema Corporation) was directly taken.

The physical properties and electrostatically dissipative properties of the fiber mother particles of the present invention such as glass transition temperature (Tg), thermal enthalpy (ΔH), thermal cracking temperature (Td _10% ), melt index (MI), and the like are discussed below.

<Measurement of glass transition temperature>

The glass transition temperatures of the fiber master batches of Examples 1 to 6, Example 10 to Example 12, and Comparative Example 1 to Comparative Example 2 were measured. The description of the measurement is as follows, and the results of the measurement are shown in Table 1.

The fiber masterbatch of Example 1 to Example 6, Example 10 to Example 12, and Comparative Example 1 to Comparative Example 2 was set in a nitrogen atmosphere and a heating rate by differential scanning calorimetry (DSC), respectively. The measurement was carried out under the conditions of 10 ° C / min to obtain a glass transition temperature (° C.).

Further, since the glass transition temperature of PVDF itself was below zero, the fiber mother particles of Examples 7 to 9 and the fiber master of Comparative Example 3 were not subjected to measurement of the glass transition temperature.

<Measurement of enthalpy value>

The fiber core particles of Examples 7 to 9 and Comparative Example 3 were each subjected to measurement of the thermal enthalpy value. The description of the measurement is as follows, and the results of the measurement are shown in Table 1.

The fiber master batches of Examples 7 to 9 and Comparative Example 3 were respectively subjected to measurement by a thermal differential scanning analysis under a nitrogen atmosphere and a heating rate of 10 ° C/min to obtain a thermal enthalpy value (° C.). .

<Measurement of Thermal Cracking Temperature>

The fiber mother particles of Examples 1 to 12 and Comparative Examples 1 to 3 were each subjected to measurement of the thermal decomposition temperature. The description of the measurement is as follows, and the results of the measurement are shown in Table 1.

The fiber master batches of Examples 1 to 12 and Comparative Examples 1 to 3 were each measured under the conditions of a nitrogen atmosphere and a temperature increase rate of 20 ° C/min by thermogravimetric analysis (TGA). And the temperature measured when the fiber masterbatch was lost by 10% by weight was taken as the thermal cracking temperature (° C.).

<Measurement of Melt Index>

The fiber core particles of Examples 1 to 12 and Comparative Examples 1 to 3 were each subjected to measurement of a melt index. The description of the measurement is as follows, and the results of the measurement are shown in Table 1.

The melt index (MVR, in units of cm ³ /10 min) of the fiber masterbatch of Examples 1 to 12 and Comparative Examples 1 to 3 was measured according to the specifications of ASTM D-1238, wherein the weight load was 2.16. Kg _f , and the test temperature varies depending on the plastic used. Refer to Table 1 for the detailed test temperature. In general, the higher the melt index, the better the fluidity.

<Test for Electrostatic Dissipative>

The resin obtained by measuring the melt index of the fiber masterbatch of Example 3, the fiber masterbatch of Example 5, the fiber masterbatch of Example 8, and the fiber masterbatch of Example 11 were measured by melt index and The fiber masterbatch of Comparative Example 1 to Comparative Example 3 was tested for electrostatically dissipative properties. The description of the test is as follows, and the results of the test are shown in Table 1.

The resin obtained by the melt index of the fiber masterbatch of Example 3, the fiber masterbatch of Example 5, and the fiber masterbatch of Example 8 were respectively measured using a resistivity tester (brand name TRACK, model MODEL-100). The surface resistivity of the resin obtained after the melt index of the fiber mother particles of Example 11 and the fiber mother particles of Comparative Examples 1 to 3, wherein the surface resistivity tester indicates that the surface resistivity was 10 ⁶ Ω/ When cm ² to 10 ¹¹ Ω/cm ² , it means that the test object has electrostatic escaping.

In Table 1, the test results of the electrostatic dissipative are indicated by the symbols "○" or "×", respectively, and the meanings represented by the symbols are as follows: ○: electrostatically dissipative; ×: no static dissipative .

As is apparent from the above Table 1, the fiber masterbatch of Example 1 to Example 2 containing the ionic liquid represented by the formula (1) had a lower glass transition than the fiber masterbatch of Comparative Example 1 containing no ionic liquid. Temperature, and a higher melt index at the same test temperature (280 ° C). This result shows that the addition of an ionic liquid in a specific content range to the plastic can effectively lower the glass transition temperature and increase the melt index, thereby improving the processability and fluidity of the fiber masterbatch at an appropriate processing temperature.

Further, the fiber masterbatch of Example 3 containing the ionic liquid represented by the formula (1) and the silver nanoparticles had a similar glass transition temperature, but the fiber masterbatch of the comparative example 1 containing no ionic liquid had a similar glass transition temperature. It has an excellent melt index and still has an excellent melt index even if the test temperature is lowered to 270 °C. The results show that the addition of silver nanoparticles to the plastic and the ionic liquid in a specific content range can effectively increase the melt index, thereby not only improving the processability and fluidity of the fiber masterbatch, but also reducing the processing temperature of the fiber masterbatch. To improve applicability.

As is apparent from the above Table 1, the fiber master batches of Examples 4 to 5 containing the ionic liquid represented by the formula (1) had a lower glass transition than the fiber masterbatch of Comparative Example 2 containing no ionic liquid. The temperature, and at the same test temperature (340 ° C), had a higher melt index, and the fiber masterbatch of Example 5 still had an excellent melt index at a lower test temperature (320 ° C). The results show that the addition of ionic liquid in a specific content range of plastic can effectively reduce the glass transition temperature and increase the melt index, thereby not only improving the processability and fluidity of the fiber masterbatch, but also processing the fiber masterbatch. Reduce, and thus improve applicability.

In addition, compared with the fiber masterbatch of Comparative Example 2 which does not contain an ionic liquid, The fiber masterbatch of Example 6 containing the ionic liquid and silver nanoparticles represented by the formula (1) has an excellent glass transition temperature, but has an excellent melt index, and even if the test temperature (320 ° C) is lowered, Has an excellent melt index. The results show that the addition of silver nanoparticles to the plastic and the ionic liquid in a specific content range can effectively increase the melt index, thereby not only improving the processability and fluidity of the fiber masterbatch, but also reducing the processing temperature of the fiber masterbatch. To improve applicability.

As is apparent from the above Table 1, the fiber masterbatches of Examples 10 to 12 containing the ionic liquid represented by the formula (2) had lower glass than the fiber masterbatch of Comparative Example 2 containing no ionic liquid. Transfer temperature and higher melt index. In more detail, the fiber masterbatch of Example 10 and Example 12 had an excellent melt index at the same test temperature (340 ° C) as compared with the fiber masterbatch of Comparative Example 2 containing no ionic liquid; The fiber masterbatch of Example 11 and Example 12 still had similar melt indices at lower test temperatures (300 ° C, 320 ° C) than the fiber masterbatch of Comparative Example 2 which did not contain the ionic liquid. The results show that the addition of ionic liquid in a specific content range of plastic can effectively reduce the glass transition temperature and increase the melt index, thereby not only improving the processability and fluidity of the fiber masterbatch, but also processing the fiber masterbatch. Reduce, and thus improve applicability.

As is apparent from the above Table 1, the fiber master batches of Examples 7 to 9 containing the ionic liquid represented by the formula (1) were at the same test temperature as compared with the fiber masterbatch of Comparative Example 3 containing no ionic liquid ( Both have a high melt index at 250 ° C). This result shows that the addition of ionic liquids in a specific content range to plastics can effectively reduce the melt index, thereby improving the processing of the fiber masterbatch at an appropriate processing temperature. Sex and mobility.

Further, the fiber master batches of Examples 7 to 9 containing the ionic liquid represented by the formula (1) had higher pyrolysis temperatures than the fiber masterbatch of Comparative Example 3 containing no ionic liquid. This result shows that the addition of ionic liquid in a specific content range to PVDF increases the thermal cracking temperature of PVDF, thereby increasing the temperature range of processing of PVDF. In this way, the plastic compositions of Examples 7 to 9 including PVDF and the ionic liquid represented by the formula (1) can have a large margin for high-temperature molding to select appropriate reaction conditions to effectively avoid Hydrofluoric acid is produced during the manufacturing process.

Further, the fiber master particles of Examples 7 to 9 containing the ionic liquid represented by the formula (1) had higher thermal enthalpy values than the fiber master particles of Comparative Example 3 containing no ionic liquid. This result shows that the addition of ionic liquid in a specific content range to PVDF makes the enthalpy of PVDF worth rising, thereby increasing the crystallinity of PVDF.

It can be seen from the above Table 1 that the fiber masterbatch is electrostatically dissipative through the inclusion of plastic and ionic liquid in a specific content range, thereby improving its applicability.

Further, the physical properties of the fibers made of the fiber masterbatch of the present invention will be examined below.

The fiber masterbatch of Example 2 was separately subjected to a melt spinning process to obtain the fiber of Example 2, wherein the spinning temperature was 260 to 280 ° C, and the crimping speed was about 2000 m/min.

Next, the fibers of Example 2 were subjected to electrostatic dissipation and friction band voltage. And the surface resistivity was measured to evaluate its antistatic property. The description of the above measurement is as follows, and the results of the measurement are shown in Table 2.

<Determination of Electrostatic Dissipation>

The static dispersion (sec) of the fibers of Example 2 was measured in accordance with the specifications of NFPA 99-2002. And, the level of the measurement result is evaluated using a grading standard specified by FTTS-FA-009, wherein the level is 3 when the static scatter is less than 0.01 sec, and the level is 3 when the electrostatic scatter is greater than or equal to 0.01 sec and less than or equal to 0.5 sec. Level 2; when the electrostatic dispersion is greater than or equal to 0.5 sec and less than 2 sec, it is level 1, and the higher the number of stages, the better the antistatic property.

<Measurement of friction band voltage>

The friction band voltage (V) of the fiber to cotton and wool of Example 2 was measured in accordance with the specification of JIS L 094:1997/AMD 1:2008. And, using the grading standard specified by FTTS-FA-009 to evaluate the level of the measurement result, wherein when the friction band voltage is less than 100V, it is level 3; when the friction band voltage is greater than or equal to 100V and less than or equal to 500V, it is level 2; When the friction band voltage is greater than or equal to 500 V and less than 1000 V, it is level 1, and the higher the number of stages, the better the antistatic property.

<Measurement of surface resistivity>

The surface resistivity (Ω/cm ² ) of the fiber of Example 2 was measured in accordance with the specifications of AATCC 76-2011. Also, the grade of the measurement results is evaluated using the grade standard specified by FTTS-FA-009, where the surface resistance is between 10 ⁴ Ω and 10 ⁶ Ω, and the surface resistance is between 10 ⁶ Ω and 10 ⁹ Ω. , is level 2; the surface resistance is between 10 ⁹ Ω and 10 ¹² Ω, which is level 1, and the higher the number of stages, the better the antistatic property. Further, when the surface resistance is between 10 ⁴ Ω and 10 ¹¹ Ω or the surface resistivity is from 10 ⁵ Ω/cm ² to 10 ¹² Ω/cm ² , it means that the test object has electrostatic escapability.

As is apparent from the above Table 2, the fibers prepared using the fiber mother particles of Example 2 can have antistatic properties. Based on this part and at the same time, according to the contents of Table 1 above, it is possible to prepare fibers having antistatic properties by using fiber masterbatch including plastic and ionic liquid in a specific content range as a raw material, and thus has good applicability.

Further, the fiber masterbatch of Example 6 was separately subjected to a melt spinning process to obtain the fiber of Example 6, wherein the spinning temperature was 310 to 330 ° C, and the crimping speed was about 600 m/min.

Next, the fibers of Example 6 were measured for fiber strength, fiber elongation, and LOI value. The description of the above measurement is as follows, and the results of the measurement are shown in Table 3.

<Measurement of fiber strength and fiber elongation>

The fibers of Example 6 were fixed at a pitch of 25 cm, and a fiber yarn strength meter (device type STATIMAT C, manufactured by TEXTECHNO) was used at a drawing speed of 125 cm per minute and a tensile strength of 100 Newtons (N). The fiber strength (g/den) and the fiber elongation (%) were measured under the conditions of a relative humidity of 65% and a temperature of 23 °C.

<Measurement of LOI value>

The LOI value (%) of the fiber of Example 6 was measured in accordance with the specifications of ASTM D 2863.

As is apparent from the above Table 3, the fiber masterbatch of Example 6 was used for spinning at a processing temperature of 330 ° C to prepare a fiber having good physical properties. Based on this part of the content, and according to the contents of Table 1 above, the specifications of the commercially available PEI fibers (for example, the processing temperature of KURAKISSS ^TM manufactured by Kuraray Co., Ltd.) can be known. The fiber masterbatch of the present invention comprising PFI and an ionic liquid in a specific content range can be processed at a processing temperature which can be achieved by a conventional machine, and thus has good applicability as compared with 390 ° C.

The present invention has been disclosed in the above embodiments, but it is not intended to limit the invention, and any one of ordinary skill in the art can make some changes and refinements without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.

Claims (8)

A plastic composition comprising: a plastic; an ionic liquid, wherein the ionic liquid is contained in an amount of 0.5% by weight to 20% by weight based on the total weight of the plastic; and silver nanoparticles, wherein the plastic composition is The content of the silver nanoparticles is 9000 ppm to 11,000 ppm based on the total weight. The plastic composition according to claim 1, wherein the plastic comprises polyetherimide (PEI), polyethylene terephthalate (PET) or polyvinylidene fluoride. (polyvinylidene fluoride, PVDF). The plastic composition of claim 1, wherein the ionic liquid comprises a structure represented by at least one of the formulae (a) to (q): Wherein R ¹ and R ² are each independently -C _x H _y SO ₃ ^- , -C _x H _y PO ₃ H ^- , -(C _x H _y )(PO ₃ H ₂ )PO ₃ H ^- , -C _x H _y COO ^- , -C _x H _y SO ₃ H, -C _x H _y PO ₃ H ₂ , -(C _x H _y )(PO ₃ H ₂ )PO ₃ H ₂ or -C _x H _y COOH, wherein x is 1 to 6, y is 2 to 12, and R ³ to R ⁹ are each independently a hydrido, substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, Substituted or unsubstituted alkenyl having 2 to 6 carbon atoms, substituted or unsubstituted aryl having 6 to 30 carbon atoms, substituted or unsubstituted 3 a cycloalkyl group of up to 30 carbon atoms, -(Z ¹ )-O-(Z ² )-OH, or -(Z ³ )-OZ ⁴ , wherein Z ¹ and Z ² are independently substituted or Unsubstituted alkylene having 1 to 6 carbon atoms, and Z ³ is a substituted or unsubstituted alkylene group having 1 to 6 carbon atoms, and Z ⁴ is substituted or not the substituted alkyl group having from 1 to 6 carbon atoms; or R ¹ to R ⁹ are each independently a hydride, substituted or non-substituted alkyl having 1 to 6 carbon atoms, substituted or non-take An alkenyl group having 2 to 6 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 30 carbon atoms, (Z ¹ )-O-(Z ² )-OH, or -(Z ³ )-OZ ⁴ , wherein Z ¹ and Z ² are independently of each other a substituted or unsubstituted alkylene having 1 to 6 carbon atoms And Z ³ and Z ⁴ are each independently a substituted or unsubstituted alkylene group having 1 to 6 carbon atoms, wherein the substituted alkyl, alkenyl, aryl, cycloalkyl, or exo An alkyl group is substituted with an alkoxy group, an alkenyl group, an alkynyl group, an aryl group, a heteroaryl group, an aldehyde group, an amine. An amino group, an ester group, an ether group, a halogen atom, a hydroxyl group, a ketone group, a nitro group, a silyl group, a sulfonyl group ( Sulfonyl), sulfoxide group, sulfate or thiol group. The plastic composition of claim 1, wherein the ionic liquid comprises an anion, and the anion comprises F ^- , Cl ^- , Br ^- , I ^- , ClO ₄ ^- , SCN ^- , OCN ^- , BF ₄ ^- PF ₆ ^- , AsF ₆ ^- , SbF ₆ ^- , NO ₃ ^- , NO ₂ ^- , N(SO ₂ CF ₃ ) ₂ ^- , SO ₄ ² -, HSO ₄ ^- , PO ₄ ^3- , HPO ₄ ^2- H ₂ PO ₄ ^- , CF ₃ CO ₂ ^- , CO ₃ ^2- , citrate or a carboxylate having 2 to 7 carbon atoms. The plastic composition of claim 1, wherein the ionic liquid is a fluorine-containing ionic liquid. The plastic composition according to claim 5, wherein the ionic liquid comprises an anion, and the anion comprises BF ₄ ^- , PF ₆ ^- , AsF ₆ ^- , SbF ₆ ^- , N(SO ₂ CF ₃ ) ₂ ^- , or CF ₃ CO ₂ ^- . The plastic composition according to claim 1, wherein the ionic liquid comprises a structure represented by formula (1) or formula (2): A fiber masterbatch made of the plastic composition described in claim 1 of the patent application.