CN114933787A - Matte PET modified material and preparation method thereof - Google Patents
Matte PET modified material and preparation method thereof Download PDFInfo
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- CN114933787A CN114933787A CN202210616373.6A CN202210616373A CN114933787A CN 114933787 A CN114933787 A CN 114933787A CN 202210616373 A CN202210616373 A CN 202210616373A CN 114933787 A CN114933787 A CN 114933787A
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- micro
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- pet
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
-
- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- 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
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Abstract
The invention relates to a matte PET modified material and a preparation method thereof, wherein the matte PET modified material comprises the following components: the PET raw material, the grafted elastomer, the micro-nano modification aid, the light scattering aid, the stabilizer, the lubricant and the tackifier are added into the formula, and the grafted elastomer, the micro-nano modification aid and the light diffusion aid are added into the formula, so that the grafted elastomer and the PET resin form tiny granular protrusions due to different refractive indexes of the grafted elastomer and the PET resin, light is irradiated on the surface to generate diffuse reflection, and the surface glossiness of the material is reduced.
Description
Technical Field
The invention relates to the technical field of data security processing, in particular to a matte PET modified material and a preparation method thereof.
Background
PET raw material, commonly called polyester resin, is mainly used for fibers and a small amount of PET raw material is used for films and engineering plastics due to low price, good performance and wider application. With the development of times, the market competition pressure is higher and higher at present, and PET differentiated products with special matte effects have development values.
The existing extinction or matte method for PET raw materials mainly comprises adding anatase titanium dioxide or inorganic fillers such as mica sheets, talcum powder, illite, montmorillonite and the like, and a coating process is adopted.
Disclosure of Invention
The invention aims to provide a matte PET modified material and a preparation method thereof, and aims to solve the problems that in the prior art, the specific gravity of the modified material is large, the mechanical property is obviously reduced, the transparency of the material is obviously reduced, or the production process is complex, the environment is not protected, the product cost is high, and the use requirement and the application field are limited.
In order to achieve the purpose, the invention provides the following technical scheme: a matte PET modified material comprises the following components:
PET raw material, grafted elastomer, micro-nano modified additive, light scattering additive, stabilizer, lubricant and tackifier.
Preferably, the contents of the components are as follows in percentage by weight:
85-90 wt% of PET raw material, 0.5-2.0 wt% of grafted elastomer, 1.0-8.0 wt% of micro-nano modification auxiliary agent, 0.3-2.0 wt% of light scattering auxiliary agent, 0.1-1.0 wt% of stabilizer, 0.3-1.0 wt% of lubricant and 0.3-1.0 wt% of tackifier.
Preferably, the grafting elastomer is one or more of EVA-g-MAH, SEBS-g-MAH, POE-g-GMA and EMMA-g-MAH.
Preferably, the micro-nano modification auxiliary agent is one or more of nano/micro calcium carbonate, nano/micro titanium dioxide, nano/micro talcum powder, nano/micro silicon dioxide and nano/micro zinc oxide.
Preferably, the light scattering auxiliary agent is one or more of special organic silicon micro powder, special PMMA micro powder, acrylate modified resin and special crystal barium sulfate.
Preferably, the stabilizer is one or more of a phenol antioxidant, a phosphite antioxidant, a lactone stabilizer, an anti-hydrolysis agent and a hindered amine light stabilizer.
Preferably, the lubricant is one or more of ethylene bisstearamide, pentaerythritol stearate, modified polysiloxane, synthetic polyester wax and microcrystalline wax.
Preferably, the tackifier is one or more of difunctional acid derivatives, trimethylolpropane, epoxy high molecular copolymer, styrene-methacrylate copolymer and isocyanate.
A preparation method of a matte PET modified material comprises the following steps:
step (1), raw material treatment: firstly, modifying the micro-nano auxiliary agent by using a surface treatment method to improve the dispersibility and compatibility of the micro-nano auxiliary agent in the PET raw material;
step (2), weighing and mixing raw materials: weighing the materials according to different weight ratios, and mixing for 5 minutes by using a high-speed mixer;
and (3) extruding and granulating: then extruding and granulating by a co-rotating double-screw extruder at the set temperature of 230-250 ℃ to prepare the matte PET special modified material.
Compared with the prior art, the invention has the beneficial effects that:
(1) the invention relates to a matte PET modified material and a preparation method thereof, which adopts the synergistic effect of a plurality of functional additives to effectively reduce the surface gloss of a PET raw material.
(2) The invention relates to a matt PET modified material and a preparation method thereof, wherein the addition amount of a functional modified additive in a formula is less, the density of the final modified material is similar to that of a PET raw material (1.4g/cm3), the transparency of the modified material is also better, the light diffusion additive in the formula can also improve the light diffusion efficiency of the raw material, so that the aims of evenness and light transmission are achieved, the requirements of haze value and light transmission rate are met, various stabilizers are added in the formula, the durability of the material in the using process can be obviously improved, the molecular weight and melt strength of the PET raw material can be improved by adding a tackifier, the comprehensive performance of the modified material is obviously improved, the modified material can be suitable for the product requirements with higher performance requirements, the production steps of the modified material are simple, the product can be produced only according to a normal process without special requirements and equipment, and the product cost has advantages, meanwhile, the application field of the LED lamp box can be expanded, such as replacing common PMMA and PS lamp box advertising boards in the market and the like, and the application cost is reduced.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Example 1
A matte PET modified material comprises the following components:
PET raw materials, grafted elastomers, micro-nano modification aids, light scattering aids, stabilizers, lubricants and tackifiers.
Wherein, the contents of the components are as follows by weight percentage:
85 wt% of PET raw material, 2.0 wt% of grafted elastomer, 8.0 wt% of micro-nano modification auxiliary agent, 2.0 wt% of light scattering auxiliary agent, 1.0 wt% of stabilizer, 1.0 wt% of lubricant and 1.0 wt% of tackifier.
The grafted elastomer is one or more of EVA-g-MAH, SEBS-g-MAH, POE-g-GMA and EMMA-g-MAH, and has the main effects of improving the compatibility of other modification aids and PET raw materials and the impact toughness of the material and reducing the surface gloss of the material.
The micro-nano modified auxiliary agent is one or more of nano/micro calcium carbonate, nano/micro titanium dioxide, nano/micro talcum powder, nano/micro silicon dioxide and nano/micro zinc oxide, and has the main effects of reducing the surface glossiness of the raw material, strengthening and toughening the raw material, absorbing part of ultraviolet light, improving the weather resistance of the raw material, being a nucleating agent of a PET raw material and improving the crystallization rate of the material.
The light scattering auxiliary agent is one or more of special organic silicon micro powder, special PMMA micro powder, acrylate modified resin and special crystal form barium sulfate, and is mainly used for improving the light diffusion efficiency of the raw material, achieving the purposes of light homogenization and light transmission, meeting the requirements of haze value and light transmission rate and further reducing the surface gloss of the raw material.
The stabilizer is one or more of a phenol antioxidant, a phosphite antioxidant, a lactone stabilizer, an anti-hydrolysis agent and a hindered amine light stabilizer, and mainly functions to improve the thermal oxidation aging performance in the high-temperature processing process of the raw materials and the weather resistance of the product in use.
The lubricant is one or more of ethylene bisstearamide, pentaerythritol stearate, modified polysiloxane, synthetic polyester wax and microcrystalline wax, and mainly has the effects of improving lubricating property, reducing friction and interface adhesion performance, and also has the effects of an anti-blocking and anti-static agent, a slipping agent and the like.
The tackifier is one or more of bifunctional acid derivatives, trimethylolpropane, epoxy high-molecular copolymers, styrene-methacrylate copolymers and isocyanate, and mainly has the effects of improving the molecular weight of raw materials, and increasing the viscosity and the material strength.
Example 2
A matte PET modified material comprises the following components:
PET raw material, grafted elastomer, micro-nano modified additive, light scattering additive, stabilizer, lubricant and tackifier.
Wherein, the contents of the components are as follows by weight percentage:
90 wt% of PET raw material, 2.0 wt% of grafted elastomer, 4.0 wt% of micro-nano modification auxiliary agent, 2.0 wt% of light scattering auxiliary agent, 1.0 wt% of stabilizer, 0.5 wt% of lubricant and 0.5 wt% of tackifier.
The grafted elastomer is one or more of EVA-g-MAH, SEBS-g-MAH, POE-g-GMA and EMMA-g-MAH, and has the main effects of improving the compatibility of other modification aids and PET raw materials and the impact toughness of the material and reducing the surface gloss of the material.
The micro-nano modified auxiliary agent is one or more of nano/micro calcium carbonate, nano/micro titanium dioxide, nano/micro talcum powder, nano/micro silicon dioxide and nano/micro zinc oxide, and has the main effects of reducing the surface glossiness of the raw material, strengthening and toughening the raw material, absorbing part of ultraviolet light, improving the weather resistance of the raw material, being a nucleating agent of a PET raw material and improving the crystallization rate of the material.
The light scattering auxiliary agent is one or more of special organic silicon micro powder, special PMMA micro powder, acrylate modified resin and special crystal form barium sulfate, and is mainly used for improving the light diffusion efficiency of the raw material, achieving the purposes of light uniformization and light transmission, meeting the requirements of haze value and light transmission and further reducing the surface gloss of the raw material.
The stabilizer is one or more of a phenol antioxidant, a phosphite antioxidant, a lactone stabilizer, an anti-hydrolysis agent and a hindered amine light stabilizer, and mainly functions to improve the thermal oxidation aging performance in the high-temperature processing process of the raw materials and the weather resistance of the product in use.
The lubricant is one or more of ethylene bisstearamide, pentaerythritol stearate, modified polysiloxane, synthetic polyester wax and microcrystalline wax, and mainly has the effects of improving lubricating property, reducing friction and interface adhesion performance, and also has the effects of an anti-blocking and anti-static agent, a slipping agent and the like.
The tackifier is one or more of bifunctional acid derivatives, trimethylolpropane, epoxy high-molecular copolymer, styrene-methacrylate copolymer and isocyanate, and mainly has the effects of improving the molecular weight of raw materials and increasing the viscosity and the material strength.
Example 3
A matte PET modified material comprises the following components:
PET raw materials, grafted elastomers, micro-nano modification aids, light scattering aids, stabilizers, lubricants and tackifiers.
Wherein, the contents of the components are as follows by weight percentage:
87 wt% of PET raw material, 1.5 wt% of grafted elastomer, 7.5 wt% of micro-nano modification auxiliary agent, 1.5 wt% of light scattering auxiliary agent, 0.8 wt% of stabilizer, 0.7 wt% of lubricant and 1.0 wt% of tackifier.
The grafted elastomer is one or more of EVA-g-MAH, SEBS-g-MAH, POE-g-GMA and EMMA-g-MAH, and has the main effects of improving the compatibility of other modification aids and PET raw materials and the impact toughness of the material and reducing the surface gloss of the material.
The micro-nano modified auxiliary agent is one or more of nano/micro calcium carbonate, nano/micro titanium dioxide, nano/micro talcum powder, nano/micro silicon dioxide and nano/micro zinc oxide, and has the main effects of reducing the surface glossiness of the raw material, strengthening and toughening the raw material, absorbing part of ultraviolet light, improving the weather resistance of the raw material, being a nucleating agent of a PET raw material and improving the crystallization rate of the material.
The light scattering auxiliary agent is one or more of special organic silicon micro powder, special PMMA micro powder, acrylate modified resin and special crystal form barium sulfate, and is mainly used for improving the light diffusion efficiency of the raw material, achieving the purposes of light uniformization and light transmission, meeting the requirements of haze value and light transmission and further reducing the surface gloss of the raw material.
The stabilizer is one or more of a phenol antioxidant, a phosphite antioxidant, a lactone stabilizer, an anti-hydrolysis agent and a hindered amine light stabilizer, and mainly functions to improve the thermal oxidation aging performance in the high-temperature processing process of the raw materials and the weather resistance of the product in use.
The lubricant is one or more of ethylene bisstearamide, pentaerythritol stearate, modified polysiloxane, synthetic polyester wax and microcrystalline wax, and mainly has the effects of improving lubricating property, reducing friction and interface adhesion performance, and also has the effects of an anti-blocking and anti-static agent, a slipping agent and the like.
Wherein the tackifier is one or more of bifunctional acid derivatives, trimethylolpropane, epoxy high-molecular copolymer, styrene-methacrylate copolymer and isocyanate, and mainly has the functions of improving the molecular weight of raw materials, increasing the viscosity and enhancing the strength of materials
The preparation method of the matte PET modified material provided by the embodiments 1-3 comprises the following steps:
step (1), raw material treatment: firstly, modifying the micro-nano auxiliary agent by a surface treatment method to improve the dispersibility and compatibility of the micro-nano auxiliary agent in the PET raw material;
step (2), weighing and mixing raw materials: weighing the materials according to different weight ratios, and mixing for 5 minutes by using a high-speed mixer;
and (3) extruding and granulating: then extruding and granulating by a co-rotating double-screw extruder at the set temperature of 230-250 ℃ to prepare the matte PET special modified material.
Wherein, the PET sheet or plate can be produced only by the conventional extrusion processing technology.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The matte PET modified material is characterized by comprising the following components:
PET raw materials, grafted elastomers, micro-nano modification aids, light scattering aids, stabilizers, lubricants and tackifiers.
2. The matte PET modified material according to claim 1, which is characterized by comprising the following components in percentage by weight:
85-90 wt% of PET raw material, 0.5-2.0 wt% of grafted elastomer, 1.0-8.0 wt% of micro-nano modification auxiliary agent, 0.3-2.0 wt% of light scattering auxiliary agent, 0.1-1.0 wt% of stabilizer, 0.3-1.0 wt% of lubricant and 0.3-1.0 wt% of tackifier.
3. The matte PET modified material of claim 1, wherein the grafted elastomer is one or more of EVA-g-MAH, SEBS-g-MAH, POE-g-GMA and EMMA-g-MAH, and mainly has the functions of improving the compatibility of other modification aids with PET raw materials and the impact toughness of the material and reducing the surface gloss of the material.
4. The matte PET modified material according to claim 1, characterized in that: the micro-nano modified additive is one or more of nano/micro calcium carbonate, nano/micro titanium dioxide, nano/micro talcum powder, nano/micro silicon dioxide and nano/micro zinc oxide.
5. The matte PET modified material according to claim 1, characterized in that: the light scattering auxiliary agent is one or more of special organic silicon micro powder, special PMMA micro powder, acrylate modified resin and special crystal form barium sulfate.
6. The matte PET modified material according to claim 1, characterized in that: the stabilizer is one or more of a phenol antioxidant, a phosphite antioxidant, a lactone stabilizer, an anti-hydrolysis agent and a hindered amine light stabilizer.
7. The matte PET modified material according to claim 1, characterized in that: the lubricant is one or more of ethylene bisstearamide, pentaerythritol stearate, modified polysiloxane, synthetic polyester wax and microcrystalline wax.
8. The matte PET modified material according to claim 1, characterized in that: the tackifier is one or more of bifunctional acid derivatives, trimethylolpropane, epoxy high-molecular copolymer, styrene-methacrylate copolymer and isocyanate.
9. The preparation method of the matte PET modified material according to any one of claims 1-8, characterized by comprising the following steps:
step (1), raw material pretreatment:
firstly, modifying the micro-nano auxiliary agent by a surface treatment method to improve the dispersibility and compatibility of the micro-nano auxiliary agent in the PET raw material;
step (2), weighing and mixing raw materials:
weighing the materials according to different weight ratios, and mixing for 5 minutes by using a high-speed mixer;
and (3) extruding and granulating:
then extruding and granulating by a co-rotating double-screw extruder at the set temperature of 230-250 ℃ to prepare the matte PET special modified material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210616373.6A CN114933787A (en) | 2022-06-01 | 2022-06-01 | Matte PET modified material and preparation method thereof |
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| CN202210616373.6A CN114933787A (en) | 2022-06-01 | 2022-06-01 | Matte PET modified material and preparation method thereof |
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