KR20130142214A - Polyolefin resin composition and preparation method of the same - Google Patents

Abstract

A polyolefin resin composition and a manufacturing method thereof are disclosed. The polyolefin resin composition of the present invention comprises: 100 parts by weight of a polyolefin resin; 0.1-15 parts by weight of an organically modified layered double hydroxide; and 0.01-5 parts by weight of a photostabilizer. Therefore, a material which blocks ultraviolet rays while improving mechanical properties such as impact strength, tensile modulus, flexural strength, flexural modulus etc. and minimizes material property degradation when being exposed to the outside for the long term can be manufactured. Additionally, a melt kneading process can be omitted in manufacture and the polyolefin resin composition can be directly injected, thereby improving the mechanical properties and ultraviolet ray stabilization of injection products and drastically reducing production costs.

Description

Polyolefin resin composition and its manufacturing method {POLYOLEFIN RESIN COMPOSITION AND PREPARATION METHOD OF THE SAME}

The present invention relates to a polyolefin resin composition and a method for manufacturing the same, and more particularly, to a polyolefin resin composition and a method for producing the same, including a light stabilizer and an organic modified layered double metal hydroxide to improve weather resistance and mechanical properties will be.

Polyolefin resins, such as polypropylene and polyethylene, are particularly sensitive to ultraviolet rays, so that light stabilizers are added not only outdoors but also indoors. Photodegradation of polyethylene and polypropylene-based resins composed of saturated hydrocarbons that do not actually absorb ultraviolet light above 250 nm results in residual catalysts such as sodium chlorite and tetranormalyl butyl titanate, impurities such as naphthalene and anthracene, and hydrogenation produced during manufacturing and processing. It is caused by hydroperoxides, carbonyl groups, and quinoids, which are by-products of phenolic antioxidants. Therefore, polyolefin-based resin has a severe decrease in mechanical properties when used outdoors without the addition of a light stabilizer. For 50 μm-thick PP tapes, T ₅₀ , which is the time when the tensile strength is reduced to 50% or less, is up to 600 hours (annual sunshine). It is about 3 months of outdoor exposure, which is about (Polymer Additives Handbook).

Nanoreinforcements to improve the mechanical properties of polymers include carbon nanotubes, nanoclays (montmorillonite (MMT), layered double hydroxide (LDH), hydroxy double salts (HDS)), nano metal oxides (nano silica, Titanium dioxide, ZnO, etc.), nano metal particles (Ag, Au, Pd, Pt, etc.), graphene (Graphene), POSS (Polyhedral oligosilsesquioxane) and the like. Meanwhile, as disclosed in Korean Patent Laid-Open Publication No. 2004-0088230, organic modified MMT (Southern Clay Corporation Closite 15A) is added to a resin to increase the flame retardancy, tensile strength, flexural strength and flexural modulus. There is a way to improve it.

SUMMARY OF THE INVENTION An object of the present invention is to provide a polyolefin resin composition which is a nanocomposite material having weather resistance without deterioration in physical properties even in outdoor use for a long time while improving the mechanical properties such as impact strength and bone flexural strength of the polyolefin resin, and a method for producing the same. have.

Polyolefin resin composition of the present invention for achieving the above object, 100 parts by weight of polyolefin resin; 0.1 to 15 parts by weight of an organically modified layered double metal hydroxide (Organically Modified Layered Double Hydroxide); And 0.01 to 5 parts by weight of a light stabilizer.

The organic anion included in the organic modified layered double metal hydroxide is selected from the group consisting of fatty acids having 1 to 50 carbon atoms, organic sulfonic acids having 1 to 50 carbon atoms, organic sulfuric acids having 1 to 50 carbon atoms, organic phosphoric acids having 1 to 50 carbon atoms, and salts thereof. It may be one or more selected.

The organic modified layered double metal hydroxide may be a compound represented by Formula 1 below.

[Formula 1]

_{[M 1 -x M 'x (} OH) 2] q + (A n -) q / n · yH 2 O

In Formula 1,

M is a monovalent or divalent metal cation,

M 'is a trivalent or tetravalent metal cation,

A ^{n -} is an organic anion having 1 to 50 carbon atoms,

0.1≤x≤0.9.

Wherein M may be at least one member selected from ^{Li +, Na +, Mg 2} +, Zn 2 +, Ca 2 +, Co 2 +, Ni 2 +, Cu 2 +, Fe 2 + , and the group consisting of Mn ^{2 +} .

Wherein M 'may be at least one member selected from the group consisting of ^{Al 3 +, Cr 3 +,} Fe 3 +, Co 3 +, and Mn ^{+ 3.}

The polyolefin resin composition may further include 0.05 to 10 parts by weight of carbon black.

The polyolefin resin may be at least one selected from the group consisting of a homopolymer, a random copolymer, a block copolymer, and a graft copolymer including an α-olefin monomer.

The α-olefin monomers are ethylene, propylene, 1-butene, 1-pentene, 1-hexene, 1-octene, 1-decene, 1-dodecene, 4-methyl-1-pentene and 3-methyl-1-pentene It may be one or more selected from the group consisting of.

The light stabilizer may be a hindered amine light stabilizer (HALS).

The hindered amine light stabilizer may be one containing a piperidyl group (piperidyl group).

The light stabilizer is a benzophenones, benzotriazoles, benzoates, salicylates, oxanilides, and cyanoacrylates in addition to the hindered amine light stabilizers. It may further include one or more selected from the group consisting of (Cyanoacrylates) and nickel (Ni) compounds.

The polyolefin resin composition may further include one or more selected from the group consisting of a dispersant, a pigment, a plasticizer, a lubricant, a filler, a reinforcing agent, and an antioxidant.

Method for producing a polyolefin resin composition of the present invention for achieving the above object is a polyolefin resin; Organically modified layered double hydroxide (Organically Modified Layered Double Hydroxide); And a light stabilizer; preparing a raw material including; 100 parts by weight of the polyolefin resin; 0.1 to 15 parts by weight of the organic modified layered double metal hydroxide; And mixing the raw material comprising a; 0.01 to 5 parts by weight of the light stabilizer; And injecting the mixed raw materials into an injection molding machine and injecting the mixed raw materials to prepare a polyolefin-based resin composition.

Another method for producing a polyolefin resin composition of the present invention for achieving the above object is a polyolefin resin; Organically modified layered double hydroxide (Organically Modified Layered Double Hydroxide); And a light stabilizer; preparing a raw material including; 100 parts by weight of the polyolefin resin; 0.1 to 15 parts by weight of the organic modified layered double metal hydroxide; And mixing the raw material comprising a; 0.01 to 5 parts by weight of the light stabilizer; Injecting the mixed raw materials into an extruder, kneading and extruding; And mixing and kneading the extruded raw material into an injection molding machine to prepare a polyolefin-based resin composition.

The raw material may further include carbon black, and may include 0.05 to 10 parts by weight of the carbon black when mixed with a mixer.

The polyolefin-based composition according to the present invention can minimize the degradation of physical properties in the long-term outdoor exposure by blocking ultraviolet rays while improving mechanical properties such as impact strength, tensile modulus, flexural strength, flexural modulus. In addition, the polyolefin-based resin composition may be directly injected without the melt kneading process, thereby improving mechanical properties and UV stability of the injection molded product, and greatly reducing manufacturing costs.

Hereinafter, after explaining the polyolefin resin composition of this invention, it demonstrates that the manufacturing method.

Polyolefin resin composition of the present invention, 100 parts by weight of polyolefin resin; 0.1 to 15 parts by weight of an organically modified layered double metal hydroxide (Organically Modified Layered Double Hydroxide); And 0.01 to 5 parts by weight of a light stabilizer.

The composition may optionally further comprise 0.05 to 10 parts by weight of carbon black.

Polyolefin series  Suzy

The polyolefin resin is ethylene, propylene, 1-butene, 1-pentene, 1-hexene, 1-octene, 1-decene, 1-dodecene, 4-methyl-1-pentene, 3-methyl-1-pentene and Homopolymers of α-olefin monomers selected from the same group, block copolymers with monomers copolymerizable with α-olefin monomers, random copolymers and graft copolymers, or mixtures thereof.

The general names of the resins belonging to the polyolefin resins include polyethylene resin (PE), high density polyethylene (HDPE), medium density polyethylene (MDPE), low density polyethylene (LDPE), linear low density polyethylene (LLDPE), ultra low density polyethylene ( VLDPE), metallocene polyethylene (PE) and the like, and ethylene propylene diene rubber (EPDM), ethylene propylene triene rubber (EPTR), ethylene vinyl acetate (EVA) and the like.

In addition, the polypropylene resin (PP) may be a PP homopolymer, a block copolymer, a random copolymer, a high isotactic PP, an EPR, or a metallocene PP. And the like can all be included.

Organic modification Layered Double Metal Hydroxide

The organically modified layered double metal hydroxide (Organically Modified Layered Double Hydroxide) is a material represented by the following formula (1) containing 0.1 to 15 parts by weight based on 100 parts by weight of the polyolefin resin, preferably, 0.5 to 7, more Preferably it may contain 1 to 3 parts by weight.

If less than 0.1 part by weight, the effect of improving weather resistance and mechanical strength may be relatively small. If it exceeds 15 parts by weight, foaming may partially occur as the amount of water released increases, thereby lowering the mechanical strength.

[Formula 1]

_{[M 1 -x M 'x (} OH) 2] q + (A n -)? Q / n yH 2 O

In Formula 1,

M is a monovalent or divalent metal cation,

M 'is a trivalent or tetravalent metal cation,

A ^{n -} is an organic anion having 1 to 50 carbon atoms,

0.1≤x≤0.9.

The M (1 or divalent metal cation) is a ^{Li +, Na +, Mg 2} +, Zn 2 +, Ca 2 +, Co 2 +, Ni 2 +, Cu 2+, Fe 2 + and Mn ^{+ 2} It may be one or more selected from the group consisting of, preferably Mg ^{2 +} , Zn ^{2 +} It may be.

Also, Wherein M '(3, or tetravalent metal cation) is ^{Al 3 +, Cr 3 +,} Fe 3 +, Co 3 +, and may be at least one selected from the group consisting of Mn ^{3 +,} preferably Al ^{3 +} Can be.

The A ^{n -} (organic anion) may be selected from the group consisting of organic phosphoric acid and salts thereof having 1 to 50 fatty acids, C 1 -C 50 organic sulfonic acid, C 1 -C 50 organic sulfate, having 1 to 50 of which It is preferable to apply myristic acid, palmitic acid, oleic acid (including hydride), stearic acid or mixtures thereof, preferably fatty acids having 14 to 18 carbon atoms.

Light stabilizer

The light stabilizer is contained in an amount of 0.01 to 5 parts by weight based on 100 parts by weight of the polyolefin resin, and is used to improve weather resistance or light stability of the resin.

The light stabilizer is preferably to apply a hindered amine light stabilizer (HALS, Hindered Amine Light Stabilizer), at least one member of the group consisting of a small molecule, oligomer, polymer type containing at least one piperidyl group (piperidyl group) Can be selected and used.

Other types of light stabilizers include benzophenones, benzotriazoles, benzoates, salicylates, oxanilides and cyanoacrylates, which are ultraviolet absorbers. And at least one selected from Ni compounds, such as Quencher, and the like, may be further included in the hindered amine light stabilizer.

Carbon black

The carbon black may be further included in the polyolefin resin composition by 0.05 to 10 parts by weight based on 100 parts by weight of the polyolefin resin.

The carbon black is used to improve weather resistance, it is possible to use a carbon black usually used as a pigment, it is preferred to use a polyolefin having excellent dispersibility.

In addition, carbon black may be added to the composition alone, but it is preferable to use the carbon black in a master batch form in which carbon black is dispersed at a high concentration for convenience of injection or extrusion. By using a master batch, it is possible to prevent scattering of materials during operation and to improve dispersibility in the composition of carbon black.

In some cases, the polyolefin resin composition of the present invention may further include one or more selected from the group consisting of pigments, plasticizers, light stabilizers, lubricants, fillers, reinforcing agents, and antioxidants.

Hereinafter, the manufacturing method of the polyolefin resin composition of this invention is demonstrated.

First, a raw material including a polyolefin-based resin, an organically modified Layered Double Hydroxide, and a light stabilizer is prepared.

Since the composition of the raw material is the same as that of the polyolefin resin composition described above, details thereof will be referred to.

Next, the mixed raw material is injected into the injection machine and injected. At this time, the kneading extrusion process before injection is omitted.

The raw material may further include carbon black in the same proportion as the composition.

Hereinafter, the manufacturing method of the other polyolefin resin composition of this invention is demonstrated.

First, a raw material including a polyolefin resin having the above-described composition, an organically modified layered double hydroxide and an optical stabilizer is prepared.

Next, the mixed raw materials are introduced into an extruder, kneaded and extruded.

Finally, the kneaded and extruded raw materials are introduced into an injection molding machine and injected to prepare a polyolefin resin composition.

The raw material may further include carbon black in the same proportion as the composition.

Hereinafter, preferred embodiments of the present invention will be described in detail.

[Example]

Example  1 to 3

As the polyolefin resin, PP is the ethylene-propylene block copolymer having a melt index of 35 g / 10 minutes. Cohen J-370A and LLDPE of Honam Petrochemical Co., Ltd. are used for injection of SK General Chemical Co., Ltd. JL-210 with a Melt Index of 20.0 g / 10 minutes was used as a grade. As the light stabilizer, Songwon 7700, a low molecular weight HALS, Songlight 9440, a high molecular weight HALS, and an organic modified layered double metal hydroxide are organically modified with hydrogenated fatty acids, and Akzo-Nobel's Perkalite F-100 As the hydroxide, an interlayer distance of about 0.5 nm and a width of 100 to 150 nm) was used.

In addition, the carbon black master batch is Songnox 21B of Songwon Industrial Co., Ltd., which is a 1: 2 blend of plastic and people's PEF0062BLK, which is manufactured by adding 42wt% carbon black to LDPE, and primary and secondary antioxidants as antioxidants. Was used.

Each component described above was taken at a composition ratio shown in Table 1 below, mixed for 3 minutes by a super mixer, and injected into a direct injection machine at a maximum temperature of 225 ° C. without kneading to prepare each test specimen.

Example  4 and 5

The same components as in Examples 1 to 3 were used, and each component was taken in the composition components and ratios shown in Table 1 below, mixed for 3 minutes by a super mixer, kneaded at a maximum temperature of 225 ° C, and extruded by a twin screw extruder. The kneaded resin was pelletized and dried to prepare each test specimen at an injector with a maximum temperature of 225 ° C.

Comparative Example  1 and 2

Each test specimen was prepared by using the same components as in Examples 1 to 3 and by injection without mixing and kneading in the same manner, and the composition components and ratios of the materials used for preparing the specimens were as described in Table 1 below. .

Comparative Example  3 and 4

Using the same components as in Examples 4 and 5, mixing, kneading extrusion and injection were carried out in the same manner to prepare each test specimen, and the composition components and ratios of the materials used to prepare the specimens were as shown in Table 1 below. It was.

division Example 1 Example 2 Example 3 Example 4 Example 5 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Of the composition
Configuration
(Parts by weight) PP copren J-370A 97 77.6 76.4 97 77.6 79.5 79.2 99.4 79.5 LLDPE JL-210 - 19.4 19.1 - 19.4 19.9 19.8 - 19.9 Sonlight 7700 0.2 0.2 0.2 0.2 0.2 - 0.2 - - Songlight 9440 0.2 0.2 0.2 0.2 0.2 - 0.2 - - Perkalite F-100 2 2 2 2 2 - - - - Songnox 21B 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 PEF0062BLK 0.5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 Sum 100 100 100 100 100 100 100 100 100

Example  6 - Example  8

As polyolefin resin, polypropylene has a melt index (Melt Index) of 27g / 10min (230 ° C, 2.16kg) and BJ-730 of Samsung Total Co., Ltd., an ethylene-propylene block copolymer for injection, and a melt index of 0.5g / 10 It was used together with BB-110 of Samsung Total Co., Ltd. for extrusion in minutes (230 ℃, 2.16kg), light stabilizer, organic modified layered double metal hydroxide, carbon black and antioxidant were the same products as Examples 1 to 5 Was used.

Each component described above was taken at a composition ratio shown in Table 2 below, mixed for 3 minutes by a super mixer, injected into a direct injection machine without kneading, and each test specimen was prepared at a maximum temperature of 225 ° C.

Example  9 and 10

The same components as in Examples 6 to 8 were used, and each component was taken in the composition components and ratios shown in Table 2 below, mixed for 3 minutes by a super mixer, kneaded at a maximum temperature of 225 ° C, and extruded by a twin screw extruder. The kneaded resin was pelletized and dried to prepare each test specimen at an injector with a maximum temperature of 225 ° C.

Comparative Example  5 and 6

Each test specimen was prepared by using the same components as in Examples 6 to 8 and by injection without mixing and kneading in the same manner, and the composition components and ratios of the materials used to prepare the specimens were as described in Table 2 below. .

Comparative Example  7 and 8

Each test specimen was prepared by using the same components as in Examples 9 and 10, mixing, and kneading with an extruder in the same manner, and the composition components and ratios of the materials used to prepare the specimens are shown in Table 2 below. As it was.

division Example 6 Example 7 Example 8 Example 9 Example
10 Comparative Example 5 Comparative Example 6 Comparative Example 7 Comparative Example 8 Of the composition
Configuration
(Parts by weight) PP BJ730 97 77.6 76.4 97 77.6 79.5 79.2 99.4 79.5 PP BB110 - 19.4 19.1 - 19.4 19.9 19.8 - 19.9 Sonlight 7700 0.2 0.2 0.2 0.2 0.2 - 0.2 - - Songlight 9440 0.2 0.2 0.2 0.2 0.2 - 0.2 - - Perkalite F-100 2 2 2 2 2 - - - - Songnox 21B 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 PEF0062BLK 0.5 1.0 2 0.5 1.0 1.0 2 0.5 1.0 Sum 100 100.5 100 100 100.5 100.5 101.5 100 100.5

[Test Example]

The following tests were performed on each specimen prepared according to Examples 1 to 10 and Comparative Examples 1 to 8. Each test was performed immediately after the injection and under conditions of 1 and 3 years after outdoor exposure.

Test Example  1: tensile test

Tensile tests were performed according to the test method of ASTM D 638. Only 1/8 inch thick specimens were measured at a strain rate of 20 mm / min. The unit of yield tensile strength is kg _f / cm ² and the unit of tensile elongation (break point) is%.

Test Example  2: Flexural test

According to the test method of KS M ISO 178 was tested on a 1/4 inch thick specimen at a speed of 2mm / min. The property unit for flexural strength and modulus is kg _f / cm ² .

Test Example  3: impact strength test

ASTM D 256 was measured in a notched Izod fashion for specimens 1/8 inch thick at 23 ° C. The physical unit is kg _{f ·} cm / cm.

Test Example  4: MI ( Melt Index , Melt index) test

Flowability was measured by ASTM D 1238 at a load of 2.16 kg at 230 ° C. and is in g / 10 min.

Test Example  5: heat deflection temperature test

ASTM D 6488 was measured under reduced load (4.6kg _f / cm ² ) for 1/8 inch thick specimens and was in ° C.

The results according to Test Examples 1 to 5 are shown in Tables 3 and 4 below.

division Example 1 Example 2 Example 3 Example 4 Example 5 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Properties
(ejaculation
Right after) Yield Tensile Strength 245 231 233 242 237 205 210 232 206 Tensile elongation 215 230 202 231 470 551 565 307 575 Flexural strength 347 307 312 321 285 262 261 295 257 Flexural modulus 12665 10812 10923 11987 10151 8286 9101 10033 9047 Impact strength 8.3 10.5 9.5 8.1 9.8 8.8 8.6 7.0 8.7 MI 41 42 37 40 39 36 36 38 36 Heat distortion temperature 143 131 137 145 135 105 104 110 105 Properties
(1 year after outdoor exposure) Yield Tensile Strength 247 235 230 235 239 185 205 210 177 Tensile elongation 227 221 211 225 475 251 452 110 275 Flexural strength 350 301 308 313 282 241 251 267 233 Flexural modulus 12520 10569 10855 12052 10281 8157 9057 10256 8988 Impact strength 8.1 10.6 9.3 8.0 9.9 5.7 7.5 4.2 5.8 Properties
(3 years after outdoor exposure) Yield Tensile Strength 220 211 221 217 217 102 187 108 95 Tensile elongation 165 171 201 158 382 2.1 153 1.5 2.0 Flexural strength 338 296 307 317 286 191 211 213 187 Flexural modulus 12787 10771 11092 11856 10395 8367 9034 10375 9128 Impact strength 7.5 8.7 8.9 7.3 8.5 2.7 6.3 2.1 2.6

division Example 6 Example 7 Example 8 Example 9 Example 10 Comparative Example 5 Comparative Example 6 Comparative Example 7 Comparative Example 8 Properties
(ejaculation
Right after) Yield Tensile Strength 270 281 275 265 280 244 247 243 240 Tensile elongation 21 312 265 25 287 556 511 25 567 Flexural strength 372 365 343 370 357 311 308 323 317 Flexural modulus 14575 14527 14152 14158 14430 13052 12987 13150 13384 Impact strength 8.5 9.7 9.1 8.3 9.4 7.1 7.4 6.5 7.2 MI 31 21 19 31 20 20 17 28 19 Heat distortion temperature 151 137 140 149 137 118 119 123 118 Properties
(1 year after outdoor exposure) Yield Tensile Strength 267 282 277 263 275 195 245 201 203 Tensile elongation 23 247 251 27 270 130 275 9.7 105 Flexural strength 367 362 346 373 355 301 305 297 309 Flexural modulus 14605 14489 14210 14354 14375 13165 13001 13215 13356 Impact strength 8.3 9.5 9.0 8.2 9.3 4.5 6.5 3.7 4.7 Properties
(3 years after outdoor exposure) Yield Tensile Strength 255 271 273 260 267 157 201 111 149 Tensile elongation 17 157 215 23 139 7.5 87 4.5 5.3 Flexural strength 361 363 338 367 357 278 295 251 281 Flexural modulus 14586 14452 14325 14279 14298 12995 12890 13271 13277 Impact strength 7.7 9.0 8.9 7.8 8.9 2.9 5.2 2.1 3.1

As shown in Table 3 and Table 4, in the polyolefin resin composition according to the embodiments of the present invention, the tensile strength (yield point), flexural strength, flexural modulus, impact strength, etc. are greatly increased by adding the organic modified layered double metal hydroxide. It was confirmed that the heat distortion temperature was increased by more than 30 ℃.

 In addition, the increase in the heat deflection temperature could reduce the cycle time during injection by more than 10 seconds to improve the economics according to the production rate. In particular, it can be seen that there is little difference in physical properties between Examples 4, 5, 9 and 10 injected after extrusion kneading and the specimens of Examples 1 to 3, 6 to 8 directly injected without extrusion kneading. It can be seen that the organic modified layered double metal hydroxide has excellent dispersibility.

On the other hand, in Comparative Examples 1, 3, 4, 5, 7 and 8, which do not contain organic modified layered double metal hydroxides and light stabilizers, 1 and 3 years after outdoor exposure, tensile elongation and impact strength are proportional to exposure time. The decrease was the fastest and the tensile and flexural strengths were also rapidly decreased. However, the organically modified double metal hydroxide is not included, but in Comparative Examples 2 and 6 including the light stabilizer, it was confirmed that the degradation of the overall physical properties was somewhat slow.

On the other hand, in Examples 1 to 10 of the present invention containing an organic modified double metal hydroxide it can be seen that the physical property degradation rate is significantly slowed, Examples 3 and 8 containing a high proportion of carbon black except for tensile elongation In addition, it was confirmed that the weather resistance increased as carbon black was added, since the overall mechanical property decreases due to outdoor exposure within 10%.

Claims (15)

100 parts by weight of polyolefin resin;
0.1 to 15 parts by weight of an organically modified layered double metal hydroxide (Organically Modified Layered Double Hydroxide); And
0.01 to 5 parts by weight of light stabilizer;
Polyolefin resin composition comprising.
The method of claim 1,
The organic anion included in the organic modified layered double metal hydroxide is selected from the group consisting of fatty acids having 1 to 50 carbon atoms, organic sulfonic acids having 1 to 50 carbon atoms, organic sulfuric acids having 1 to 50 carbon atoms, organic phosphoric acids having 1 to 50 carbon atoms, and salts thereof. Polyolefin resin composition, characterized in that at least one selected.
The method of claim 1,
The organic modified layered double metal hydroxide is a polyolefin resin composition, characterized in that the compound represented by the formula (1) below.
[Chemical Formula 1]
_{[M 1 -x M 'x (} OH) 2] q + (A n -) q / n · yH 2 O
In Formula 1,
M is a monovalent or divalent metal cation,
M 'is a trivalent or tetravalent metal cation,
A ^{n -} is an organic anion having 1 to 50 carbon atoms,
0.1≤x≤0.9.
The method of claim 3,
Wherein M is ^{Li +, Na +, Mg 2} +, Zn 2 +, Ca 2 +, Co 2 +, Ni 2 +, Cu 2 +, Fe 2 + , and wherein at least one member selected from the group consisting of Mn ^{2 +} Polyolefin-based resin composition.
The method of claim 3,
Wherein M 'is ^{Al 3 +, Cr 3 +,} Fe 3 +, Co 3 +, and the polyolefin-based resin composition, wherein at least one member selected from the group consisting of Mn ^{+ 3.}
The method of claim 1,
The polyolefin resin composition further comprises 0.05 to 10 parts by weight of carbon black polyolefin resin composition.
The method of claim 1,
The polyolefin resin is a polyolefin resin composition, characterized in that at least one selected from the group consisting of a homopolymer, a random copolymer, a block copolymer and a graft copolymer containing an α-olefin monomer.
The method of claim 7, wherein
The α-olefin monomers are ethylene, propylene, 1-butene, 1-pentene, 1-hexene, 1-octene, 1-decene, 1-dodecene, 4-methyl-1-pentene and 3-methyl-1-pentene Polyolefin resin composition, characterized in that at least one member selected from the group consisting of.
The method of claim 1,
The light stabilizer is a hindered amine light stabilizer (HALS, polyolefin resin composition) characterized in that.
10. The method of claim 9,
The hindered amine light stabilizer is a polyolefin-based resin composition, characterized in that it comprises a piperidyl group (piperidyl group).
10. The method of claim 9,
The light stabilizer is a benzophenones, benzotriazoles, benzoates, salicylates, oxanilides, and cyanoacrylates in addition to the hindered amine light stabilizers. (Cyanoacrylates) and a nickel (Ni) compound polyolefin resin composition characterized in that it further comprises one or more selected from the group consisting of.
The method of claim 1,
The polyolefin resin composition further comprises at least one selected from the group consisting of dispersants, pigments, plasticizers, lubricants, fillers, reinforcing agents and antioxidants.
Polyolefin resin; Organically modified layered double hydroxide (Organically Modified Layered Double Hydroxide); And a light stabilizer; preparing a raw material including;
100 parts by weight of the polyolefin resin; 0.1 to 15 parts by weight of the organic modified layered double metal hydroxide; And mixing the raw material comprising a; 0.01 to 5 parts by weight of the light stabilizer; And
Injecting the mixed raw material into an injection molding machine to produce a polyolefin-based resin composition; comprising
Method for producing a polyolefin resin composition.
Polyolefin resin; Organically modified layered double hydroxide (Organically Modified Layered Double Hydroxide); And a light stabilizer; preparing a raw material including;
100 parts by weight of the polyolefin resin; 0.1 to 15 parts by weight of the organic modified layered double metal hydroxide; And mixing the raw material comprising a; 0.01 to 5 parts by weight of the light stabilizer;
Injecting the mixed raw materials into an extruder, kneading and extruding; And
Injecting the kneaded and extruded raw material into an injection molding machine to produce a polyolefin-based resin composition;
Method for producing a polyolefin resin composition.
14. The method according to claim 13 or 14,
The raw material further comprises carbon black, and when mixed in a mixer, the method for producing a polyolefin resin composition comprising 0.05 to 10 parts by weight of the carbon black.