CN112852047B - Pearlescent multicolor effect composition with high oxygen barrier property and preparation and application thereof - Google Patents

Pearlescent multicolor effect composition with high oxygen barrier property and preparation and application thereof Download PDF

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CN112852047B
CN112852047B CN202110007960.0A CN202110007960A CN112852047B CN 112852047 B CN112852047 B CN 112852047B CN 202110007960 A CN202110007960 A CN 202110007960A CN 112852047 B CN112852047 B CN 112852047B
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pearlescent
barrier property
oxygen barrier
high oxygen
nylon
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CN112852047A (en
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李骏
朱琪敏
汤小苏
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Hangzhou Nuoshen Technology Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B32B27/325—Layered products comprising a layer of synthetic resin comprising polyolefins comprising polycycloolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/04—Homopolymers or copolymers of ethene
    • C08J2323/08—Copolymers of ethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2345/00—Characterised by the use of homopolymers or copolymers of compounds having no unsaturated aliphatic radicals in side chain, and having one or more carbon-to-carbon double bonds in a carbocyclic or in a heterocyclic ring system; Derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
    • C08J2377/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
    • C08J2377/06—Polyamides derived from polyamines and polycarboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2483/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
    • C08J2483/04—Polysiloxanes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C08K3/36—Silica
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K9/00—Use of pretreated ingredients
    • C08K9/10—Encapsulated ingredients

Abstract

The invention discloses a pearlescent multicolor effect composition with high oxygen barrier property and preparation and application thereof. The composition comprises the following raw materials by taking the total mass of the raw materials as 100 percent: 90-99% of barrier polymer, 0.1-3% of metal oxide coated silicon dioxide thin slice and 0.1-5% of organic silicon resin microsphere; the silicone resin microspheres comprise
Figure DDA0002884253340000011
105、
Figure DDA0002884253340000012
120、
Figure DDA0002884253340000013
130、

Description

Pearlescent multicolor effect composition with high oxygen barrier property and preparation and application thereof
Technical Field
The invention relates to the field of pearlescent multicolor effect films, in particular to a pearlescent multicolor effect composition with high oxygen barrier property and preparation and application thereof.
Background
Thermoplastic resin polyethylene terephthalate (PET) has been widely used to prepare various types of packaging materials. However, PET reduces the shelf life of oxygen sensitive products due to its permeability to oxygen. Packaging materials for food and pharmaceuticals often need to have high oxygen barrier properties to prevent the packaged materials from deteriorating or corroding due to contact with oxygen.
In order to improve the barrier properties of packaging materials, the packaging industry uses layers of materials for inert oxygen barrier layers and other polymers such as ethylene vinyl alcohol copolymer (EVOH), Cyclic Olefin Copolymer (COC), nylon 6, amorphous nylon, etc. compounded into a multilayer structure.
Another strategy is to use an active oxygen scavenger to reduce oxygen inside the package, employing an oxygen scavenger combination that oxidizes a substituted or unsubstituted unsaturated olefin and a transition metal. CN110291131A discloses a polyester polyether copolymer, in which polyether segments contain polytetramethylene oxide segments, which can be effectively used to influence and control oxygen scavenging in thermoplastic materials. CN102015860A discloses an oxygen scavenging mixture comprising an oxidizable metal component, KCl/CaCl2An electrolyte component, and a non-electrolyte acidifying component.
CN106349546A discloses a high-barrier high-density polyethylene plastic which contains various complex components such as organic montmorillonite, aluminum borate whisker, muscovite flake and the like. The mica flakes are oriented and arranged in parallel with the plastic film through bidirectional stretching in the plastic film and are vertical to the permeation direction, so that the oxygen barrier effect can be improved. However, the preparation process of the invention is cumbersome and does not take into account the aesthetic impact of these components.
CN102372875A a high gloss biaxially oriented polypropylene (BOPP) pearlescent film was prepared using calcium carbonate as the pearlescent masterbatch. CN104629182A discloses a pearly-luster master batch for a BOPP film by using mica coated with metal oxide as pearly-luster powder. However, such pearlescent films do not take into account performance requirements in terms of oxygen barrier.
It can be seen that the active oxygen scavenging techniques of the prior art involve a number of complex components that do not address the aesthetic needs of the packaging material, while the prior art pearlescent films do not address the performance enhancement of oxygen barrier.
Disclosure of Invention
Aiming at the technical problems and the defects in the field, the invention provides the pearlescent magic color effect composition with high oxygen barrier property, which utilizes the synergistic effect of the silicon dioxide sheet coated by the metal oxide and the special organic silicon resin microspheres, has excellent oxygen barrier property, and can be prepared into the pearlescent magic color effect film with high oxygen barrier property.
A pearlescent magic color effect composition with high oxygen barrier property comprises the following raw materials by weight percent of 100 percent:
90 to 99 percent of barrier polymer,
0.1-3% of silicon dioxide flake coated by metal oxide,
0.1 to 5 percent of organic silicon resin microspheres;
the organic silicon resin microspheres comprise
Figure BDA0002884253330000021
105、
Figure BDA0002884253330000022
120、
Figure BDA0002884253330000023
130、
Figure BDA0002884253330000024
145, respectively.
The barrier polymer comprises at least one of EVOH, COC and nylon.
The nylon comprises at least one of nylon 6, nylon 66, nylon 612, nylon 610, nylon 1010, aromatic nylon and amorphous nylon. The amorphous transparent nylon comprises DuPont
Figure BDA0002884253330000025
PA, EMS TR55, TR90 and other US patents such as those described in US5053259A, US5344679A and US 5480945A.
In a preferred embodiment, the barrier polymer is a transparent material, such as COC, amorphous nylon, etc., which is more easily colored due to its colorless transparency to achieve better visual appearance.
The metal oxide coated silica flakes preferably comprise Merck
Figure BDA0002884253330000031
At least one of T10-01, T10-02, T10-03, T10-04, F10-51, F20-51, T20-04 and T20-02. The preferable metal oxide coated silicon dioxide thin slice can play a better synergistic role with the special type of organic silicon resin microspheres, and further remarkably improves the oxygen barrier property of the product. Further, when the barrier polymer is amorphous nylon, the above-mentioned preferably special metal oxide-coated silica flakes, silicone resin microspheres have the best oxygen barrier synergistic effect.
The pearlescent multicolor effect composition with high oxygen barrier property comprises the following raw materials by weight percent (100%):
0.1 to 1 percent of UV stabilizer,
0.05 to 0.5 percent of lubricant.
Namely, the pearlescent multicolor effect composition with high oxygen barrier property comprises the following raw materials by weight percent based on 100 percent of the total mass of the raw materials:
Figure BDA0002884253330000032
in the above formulation, the total mass of the barrier polymer, the metal oxide-coated silica sheet, the silicone resin microsphere, the UV stabilizer, and the lubricant is preferably 100%.
The UV stabilizer may comprise one or more of Tinuvin 326, Tinuvin 234, Tinuvin 350, CYASORB UV-5411 and CYASORB UV-3638.
The lubricant may comprise one or more of aluminium stearate, zinc stearate, pentaerythritol stearate, montan wax.
Compositions containing the preferred UV stabilizers and lubricants described above are more suitable for making film articles having an excellent combination of properties.
The invention also provides a preparation method of the pearlescent multicolor effect composition with high oxygen barrier property, which comprises the following steps: uniformly mixing the raw materials according to a ratio, and adding the mixture into a double-screw extruder for extrusion to obtain the high-oxygen-barrier pearlescent multicolor effect composition;
the temperature of a machine barrel of the double-screw extruder is 240-325 ℃, and the rotating speed of a screw is 250-350 rpm.
Preferably, the barrier polymer is vacuum dried to remove moisture prior to use.
The temperature of the vacuum drying is preferably 60-120 ℃, and the time is preferably 2-6 h.
The invention also provides application of the pearlescent magic color effect composition with high oxygen barrier property in preparation of a pearlescent magic color effect film or a packaging material with high oxygen barrier property, and the pearlescent magic color effect composition is particularly suitable for packaging products such as oxygen-sensitive components and raw materials.
As a general inventive concept, the present invention also provides a pearlescent multicolor effect multilayer composite film with high oxygen barrier property, comprising a PET layer, a polyethylene layer and a modified polymer barrier layer therebetween;
the modified polymer barrier layer is prepared from the high-oxygen-barrier pearlescent multicolor effect composition.
The PET layer may serve as the outer layer and the polyethylene layer as the inner layer, respectively.
The invention also provides a preparation method of the pearlescent multicolor effect multilayer composite film with high oxygen barrier property, which comprises the following steps: and melting the high-oxygen-barrier pearlescent multicolor effect composition to prepare a biaxially oriented film, and then sequentially compounding the biaxially oriented film, PET (polyethylene terephthalate) and polyethylene heat-seal films on a dry compounding machine to obtain the high-oxygen-barrier pearlescent multicolor effect multilayer composite film.
The invention also provides application of the high-oxygen-barrier-property pearlescent multicolor-effect multilayer composite film in preparation of packaging materials, and the composite film is particularly suitable for packaging products such as oxygen-sensitive components and raw materials.
In the invention, the combined modified polymer of the silicon dioxide sheet coated by the metal oxide and the special organic silicon resin microspheres is used as the barrier layer, and then PET and polyethylene films are compounded on a dry compounding machine, so that the oxygen barrier property is improved while the colorful pearlescent color effect is obtained.
Compared with the prior art, the invention has the main advantages that: the pearlescent magic color effect composition with high oxygen barrier property provided by the invention utilizes the synergistic effect of the silicon dioxide sheet coated by the metal oxide and the special organic silicon resin microspheres to obtain the magic color pearlescent visual effect and simultaneously has excellent oxygen barrier property, and can be prepared into a pearlescent magic color effect film with high oxygen barrier property.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. The following examples are conducted under conditions not specified, usually according to conventional conditions, or according to conditions recommended by the manufacturer.
The specific embodiment uses the following raw materials in types and grades:
amorphous nylon:
Figure BDA0002884253330000051
PA；
UV stabilizer: tinuvin 234;
lubricant: aluminum stearate;
organic silicon resin microspheres:
Figure BDA0002884253330000052
130；
metal oxidesCoating silicon dioxide thin sheets:
Figure BDA0002884253330000053
T10-01、T10-51、T20-02。
the modified nylon particle formulations of the following examples and comparative examples are shown in table 1 below, and the preparation method comprises: choose to use
Figure BDA0002884253330000054
PA specification, the pellets were dried in vacuum at 100 ℃ for 4 hours to remove moisture, premixed according to the formulation of Table 1 and then fed through the main feed port into a twin screw extruder for extrusion, the twin screw extruder was ZE25 from Krauss Maffei Berstorff, the barrel temperature was set at 290 ℃, the screw rotation speed was 300 revolutions per minute, and the throughput was 25 kg/h.
TABLE 1
Figure BDA0002884253330000061
The modified nylon particles prepared in the above examples and comparative examples were respectively melted to prepare biaxially oriented films, and the obtained modified polymer films were sequentially compounded with PET and polyethylene heat-seal films on a dry compounding machine to obtain pearlescent multicolor multilayer composite films, and the performance tests are shown in table 2.
TABLE 2
Figure BDA0002884253330000062
It can be seen from table 2 that different iridescent pearlescent effects can be achieved by coating silica with different metal oxides. And the coated silicon dioxide and the organic silicon resin microspheres are compounded, so that better oxygen barrier property can be realized compared with the single use of any one of the components. Comparison of comparative examples 1 and 2 shows that, in the case of no addition of the metal oxide coated silica, the silicone resin microspheres alone have no improvement effect on the oxygen transmission rate of the obtained composite film, and when the metal oxide coated silica and the silicone resin microspheres exist in the raw materials at the same time (example 1), the oxygen transmission rate of the obtained composite film is obviously reduced, and the oxygen barrier property is obviously improved.
Furthermore, it should be understood that various changes and modifications can be made by one skilled in the art after reading the above description of the present invention, and equivalents also fall within the scope of the invention as defined by the appended claims.

Claims (8)

1. The pearlescent multicolor effect composition with high oxygen barrier property is characterized by comprising the following raw materials by weight percent of 100 percent:
90 to 99 percent of barrier polymer,
0.1-3% of silicon dioxide flake coated by metal oxide,
0.1 to 5 percent of organic silicon resin microspheres;
the organic silicon resin microspheres comprise
Figure FDA0003462154410000011
105、
Figure FDA0003462154410000012
120、
Figure FDA0003462154410000013
130、
Figure FDA0003462154410000014
145;
the barrier polymer comprises at least one of EVOH, COC and nylon;
the nylon comprises at least one of nylon 6, nylon 66, nylon 612, nylon 610, nylon 1010, aromatic nylon and amorphous nylon;
the metal oxide coated silica flakes comprise Merck
Figure FDA0003462154410000015
T10-01、T10-02, T10-03, T10-04, F10-51, F20-51, T20-04 and T20-02.
2. The pearlescent fantasy-effect composition with high oxygen barrier property according to claim 1, wherein the raw material composition further comprises:
0.1 to 1 percent of UV stabilizer,
0.05 to 0.5 percent of lubricant;
the UV stabilizer comprises one or more of Tinuvin 326, Tinuvin 234, Tinuvin 350, CYASORB UV-5411 and CYASORB UV-3638;
the lubricant comprises one or more of aluminum stearate, zinc stearate, pentaerythritol stearate and montan wax.
3. The method for preparing the pearlescent fantasy-effect composition with high oxygen barrier property according to claim 1 or 2, which comprises: uniformly mixing the raw materials according to a ratio, and adding the mixture into a double-screw extruder for extrusion to obtain the high-oxygen-barrier pearlescent multicolor effect composition;
the temperature of a machine barrel of the double-screw extruder is 240-325 ℃, and the rotating speed of a screw is 250-350 rpm.
4. The method of claim 3, wherein the barrier polymer is vacuum dried to remove moisture prior to use;
the temperature of the vacuum drying is 60-120 ℃, and the time is 2-6 h.
5. Use of the pearlescent magic color effect composition with high oxygen barrier property according to claim 1 or 2 for preparing pearlescent magic color effect film or packaging material with high oxygen barrier property.
6. A pearly luster magic color effect multilayer composite film with high oxygen barrier property is characterized by comprising a PET layer, a polyethylene layer and a modified polymer barrier layer positioned between the PET layer and the polyethylene layer;
the modified polymer barrier layer is prepared from the high oxygen barrier pearlescent fantasy effect composition of claim 1 or 2.
7. The method for preparing the pearlescent multicolor effect multilayer composite film with high oxygen barrier property according to claim 6, which comprises: and melting the high-oxygen-barrier pearlescent multicolor effect composition to prepare a biaxially oriented film, and then sequentially compounding the biaxially oriented film, PET (polyethylene terephthalate) and polyethylene heat-seal films on a dry compounding machine to obtain the high-oxygen-barrier pearlescent multicolor effect multilayer composite film.
8. Use of the pearlescent fantasy-color effect multilayer composite film with high oxygen barrier property according to claim 6 for preparing packaging materials.
CN202110007960.0A 2021-01-05 2021-01-05 Pearlescent multicolor effect composition with high oxygen barrier property and preparation and application thereof Active CN112852047B (en)

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CN110903553B (en) * 2019-11-15 2022-04-01 广东天雄新材料科技股份有限公司 Spraying-free PP/PCTG alloy material with multicolor effect and preparation method thereof
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