CN110734630A - high-toughness PET material for plastic uptake box - Google Patents
high-toughness PET material for plastic uptake box Download PDFInfo
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- CN110734630A CN110734630A CN201910985955.XA CN201910985955A CN110734630A CN 110734630 A CN110734630 A CN 110734630A CN 201910985955 A CN201910985955 A CN 201910985955A CN 110734630 A CN110734630 A CN 110734630A
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- polyethylene
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- toughness
- plastic uptake
- coupling agent
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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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F255/00—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00
- C08F255/02—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00 on to polymers of olefins having two or three carbon atoms
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G83/00—Macromolecular compounds not provided for in groups C08G2/00 - C08G81/00
- C08G83/001—Macromolecular compounds containing organic and inorganic sequences, e.g. organic polymers grafted onto silica
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/06—Polymer mixtures characterised by other features having improved processability or containing aids for moulding methods
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/08—Polymer mixtures characterised by other features containing additives to improve the compatibility between two polymers
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention provides PET materials for a high-toughness plastic uptake box, which are compounded by adding toughening resin, antioxidant and compatibilizer into saturated polyester, wherein the mass ratio of the toughening resin to the saturated polyester is 0.1-1:1, the toughening resin is or a mixture of several of organic or inorganic graft modified polypropylene or polyethylene.
Description
Technical Field
The invention relates to the field of plastic packaging products, in particular to high-toughness PET materials for a plastic uptake box.
Background
The plastic sucking is a kinds of plastic processing technology, and the main principle is that after flat plastic hard sheets are heated and softened, the plastic hard sheets are adsorbed on the surface of a mould in vacuum, and after cooling, the plastic hard sheets are formed, is widely used in the industries of plastic packaging, lamp decoration, notice, decoration and the like.
However, ester groups and benzene rings in the macromolecules of PET form a conjugated system, so that the rigidity of molecular chains is increased, the impact resistance of the PET is poor, is not suitable for being made into certain products with high toughness, and in order to widen the application of the PET, the PET needs to be toughened and modified.
Disclosure of Invention
The technical problem to be solved is as follows: the invention aims to provide a high-toughness PET material for a plastic uptake box, wherein the PET material is applied to the plastic uptake box and is blended with other polymers to improve the toughness of the PET material.
The technical scheme is that PET materials for the high-toughness plastic uptake box are compounded by adding toughening resin, antioxidant and compatibilizer into saturated polyester, the mass ratio of the toughening resin to the saturated polyester is 0.1-1:1, and the toughening resin is or a mixture of several of organic or inorganic graft modified polypropylene or polyethylene.
Preferably, the organic or inorganic graft modified polypropylene or polyethylene comprises glycidyl methacrylate modified polyethylene prepared by a melt grafting method, and silicon dioxide or titanium dioxide modified graft polypropylene or polyethylene.
Preferably, the preparation method of the glycidyl methacrylate modified polyethylene comprises the steps of heating, stirring and fully mixing polyethylene, glycidyl methacrylate monomer, styrene monomer and initiator, and carrying out melt mixing grafting on the mixture to obtain the glycidyl methacrylate modified polyethylene.
Preferably, the preparation method of the silicon dioxide or titanium dioxide modified grafted polypropylene or polyethylene comprises the steps of uniformly mixing, melting and blending the silicon dioxide or titanium dioxide modified by the silane coupling agent with the polypropylene or polyethylene matrix, the initiator and the grafting monomer butyl acrylate to obtain the silicon dioxide or titanium dioxide modified grafted polypropylene or polyethylene.
Preferably, the antioxidant is a composition of any one or more than two of an antioxidant 1098, an antioxidant TH-1790 or an antioxidant 264, namely .
Preferably, the compatibilizer is a combination of either or both of an amino-terminated polyurethane or a silane coupling agent.
Preferably, the silane coupling agent is any of a silane coupling agent KH550, a silane coupling agent KH570 or a silane coupling agent LM-N308.
Has the advantages that: the PET material of the invention has the following advantages:
1. the glycidyl methacrylate on the glycidyl methacrylate modified polyethylene branched chain has good affinity with PET due to the same polarity, and the two types of the glycidyl methacrylate modified polyethylene branched chain have good toughening effect on polyester after being blended;
2. the nano silicon dioxide and the nano titanium dioxide have a toughening effect on resin, but are easy to agglomerate when being directly added into PET (polyethylene terephthalate), and the silicon dioxide or the titanium dioxide is grafted to polypropylene or polyethylene, so that the silicon dioxide or the titanium dioxide and the polypropylene or the polyethylene can simultaneously play a toughening effect on the PET, and the mechanical property of the PET is improved;
3. and finally, the PET and the toughened resin can be well compatible by matching with the effect of the compatibilizer.
Detailed Description
Example 1
Preparation of glycidyl methacrylate modified polyethylene:
100 parts of polyethylene, 5 parts of glycidyl methacrylate monomer, 4 parts of styrene monomer and 0.1 part of initiator dicumyl peroxide are mixed at high speed, heated and stirred for 5 minutes to be fully mixed, the mixture is added into a torque rheometer to be subjected to melt mixing grafting, the temperature of the melt grafting is set to be 160 ℃, the rotating speed is 50r/min, and finally the glycidyl methacrylate modified polyethylene is obtained.
Example 2
Preparation of glycidyl methacrylate modified polyethylene:
100 parts of polyethylene, 3 parts of glycidyl methacrylate monomer, 5 parts of styrene monomer and 0.2 part of initiator dicumyl peroxide are mixed at high speed, heated and stirred for 8 minutes to be fully mixed, the mixture is added into a torque rheometer to be subjected to melt mixing grafting, the temperature of the melt grafting is set to be 180 ℃, the rotating speed is 30r/min, and finally the glycidyl methacrylate modified polyethylene is obtained.
Example 3
Preparation of glycidyl methacrylate modified polyethylene:
120 parts of polyethylene, 3 parts of glycidyl methacrylate monomer, 3 parts of styrene monomer and 0.3 part of initiator dicumyl peroxide are mixed at high speed, heated and stirred for 10 minutes to be fully mixed, the mixture is added into a torque rheometer to be subjected to melt mixing grafting, the temperature of the melt grafting is set to be 170 ℃, the rotating speed is 40r/min, and finally the glycidyl methacrylate modified polyethylene is obtained.
Example 4
Preparation of silica-modified grafted polypropylene:
20 parts of silane graft modified nano SiO2The particles, 40 parts of polypropylene matrix, 1 part of initiator and 20 parts of grafting monomer butyl acrylate are evenly mixed and then put into a torque rheometer for melting and blending for 15 min, wherein the temperature is 180 ℃ and the rotating speed is 60 r/min.
Example 5
Preparation of titanium dioxide modified grafted polyethylene:
20 parts of silane graft modified nano SiO2The particles, 60 parts of polyethylene matrix, 2 parts of initiator and 40 parts of grafting monomer butyl acrylate are evenly mixed and then put into a torque rheometer for melting and blending for 20 min, the temperature is 160 ℃, and the rotating speed is 50 r/min.
Example 6
Drying the saturated polyester and the toughened resin, adding the toughened resin prepared in the example 1, the antioxidant 1098, the amino-terminated polyurethane and the silane coupling agent KH550 into the saturated polyester, stirring and mixing the mixture in a mixer, adding the mixed material into a double-screw extruder, carrying out melt extrusion, cooling and granulating the extruded material to obtain the modified polyester material, wherein the drying temperature is set to 80 ℃, the drying time is 8 hours, the mass ratio of the toughened resin to the saturated polyester is 0.1:1, the extrusion temperature of the double-screw extruder from a feed port to an extrusion die head is respectively sections of 200 ℃, two sections of 240 ℃, three sections of 240 ℃, a nozzle is 260 ℃, a die is 55 ℃, and the rotating speed of a screw is 50 r/min.
Example 7
Drying the saturated polyester and the toughened resin, adding the toughened resin prepared in the example 1, the antioxidant 264 and the silane coupling agent KH570 into the saturated polyester, stirring and mixing in a mixer, adding the mixed material into a double-screw extruder, melting and extruding, cooling and granulating after extrusion to prepare the modified polyester material, wherein the drying temperature is set to 95 ℃, and the drying time is 4 hours, the mass ratio of the toughened resin to the saturated polyester is 1:1, the extrusion temperature of the double-screw extruder from a feeding port to an extrusion die head is sections 240 ℃, the second sections 220 ℃, the third sections 260 ℃, a nozzle 240 ℃, a die 70 ℃ and the rotating speed of a screw is 60 r/min.
Example 8
Drying saturated polyester and toughened resin, adding the toughened resin prepared in example 1, an antioxidant TH-1790 and a silane coupling agent LM-N308 into the saturated polyester, stirring and mixing the materials in a mixer, adding the mixed materials into a double-screw extruder to melt and extrude, cooling and granulating the extruded materials to prepare the modified polyester material, wherein the drying temperature is set to be 90 ℃, the drying time is 6 hours, the mass ratio of the toughened resin to the saturated polyester is 0.6:1, the extrusion temperature of the double-screw extruder from a feeding port to an extrusion die head is respectively sections 220 ℃, two sections 230 ℃, three sections 250 ℃, a nozzle is 250 ℃, a die is 65 ℃, and the rotating speed of a screw is 55 r/min.
The polyester materials of examples 6-8 were processed into 0.5mm sheets for performance testing, and specific test indexes and test results are shown in the following table.
| Test index | Example 6 | Example 7 | Example 8 | Blank control group | |
| Tensile Strength (MPa) | ASTM D638 | 45.8 | 46.1 | 44.7 | 32.4 |
| Elongation at Break (%) | ASTM D638 | 8.1 | 7.8 | 7.9 | 7.9 |
| Bending strength (MPa) | ASTM D790 | 67.9 | 70.2 | 69.5 | 46.9 |
The present invention is illustrated by the above-mentioned examples, but the present invention is not limited to the above-mentioned detailed process equipment and process flow, i.e. it is not meant to imply that the present invention must rely on the above-mentioned detailed process equipment and process flow to be practiced. It should be understood by those skilled in the art that any modification of the present invention, equivalent substitutions of the raw materials of the product of the present invention, addition of auxiliary components, selection of specific modes, etc., are within the scope and disclosure of the present invention.
Claims (7)
1, PET materials for high-toughness plastic uptake boxes, which is characterized in that the PET materials are compounded by adding toughening resin, antioxidant and compatibilizer into saturated polyester, the mass ratio of the toughening resin to the saturated polyester is 0.1-1:1, and the toughening resin is or a mixture of several of organic or inorganic graft modified polypropylene or polyethylene.
2. The PET material for high-toughness plastic uptake boxes according to claim 1, wherein the organic or inorganic graft-modified polypropylene or polyethylene comprises glycidyl methacrylate-modified polyethylene prepared by melt grafting, and silicon dioxide or titanium dioxide-modified grafted polypropylene or polyethylene.
3. The kinds of PET material for the high-toughness plastic uptake box according to claim 2, wherein the glycidyl methacrylate modified polyethylene is prepared by heating, stirring and mixing polyethylene, glycidyl methacrylate monomer, styrene monomer and initiator, and subjecting the mixture to melt mixing and grafting to obtain the glycidyl methacrylate modified polyethylene.
4. The PET material for the high-toughness plastic uptake box according to claim 2, wherein the silica or titanium dioxide modified grafted polypropylene or polyethylene is prepared by uniformly mixing, melting and blending the silane coupling agent modified silica or titanium dioxide, the polypropylene or polyethylene matrix, the initiator and the grafting monomer butyl acrylate to obtain the silica or titanium dioxide modified grafted polypropylene or polyethylene.
5. The kinds of high-toughness PET material for plastic uptake boxes according to claim 1, wherein the antioxidant is 1098, TH-1790 or 264, or a combination of or more.
6. The high-toughness PET material for plastic uptake boxes according to claim 1, wherein the compatibilizer is a combination of either or both of amino-terminated polyurethane and silane coupling agent.
7. The kinds of high toughness PET materials for a blister pack according to claim 6, wherein said silane coupling agent is any one of a silane coupling agent KH550, a silane coupling agent KH570 and a silane coupling agent LM-N308, .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910985955.XA CN110734630A (en) | 2019-10-17 | 2019-10-17 | high-toughness PET material for plastic uptake box |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910985955.XA CN110734630A (en) | 2019-10-17 | 2019-10-17 | high-toughness PET material for plastic uptake box |
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| CN110734630A true CN110734630A (en) | 2020-01-31 |
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| CN201910985955.XA Withdrawn CN110734630A (en) | 2019-10-17 | 2019-10-17 | high-toughness PET material for plastic uptake box |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111218061A (en) * | 2020-02-18 | 2020-06-02 | 东莞市高能高分子材料有限公司 | Modified PC/PP plastic and preparation method thereof |
| CN112810116A (en) * | 2020-12-29 | 2021-05-18 | 宁波长阳科技股份有限公司 | Plastic uptake processing method and product |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1228443A (en) * | 1999-01-19 | 1999-09-15 | 中山大学 | Nanometre inorganic particle toughened reinforced plastics and preparation method thereof |
| US20070173618A1 (en) * | 2006-01-20 | 2007-07-26 | Shaikh Abbas A G | Miscible polycarbonate polyester blends |
| CN101280096A (en) * | 2008-05-20 | 2008-10-08 | 上海大学 | High-glaze strengthened toughened polyethylene glycol terephthalate nanometer composite material and preparation thereof |
| CN101838444A (en) * | 2010-04-13 | 2010-09-22 | 四川中物材料有限责任公司 | Primer-free polyester material for decorating pieces and method for preparing same |
-
2019
- 2019-10-17 CN CN201910985955.XA patent/CN110734630A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1228443A (en) * | 1999-01-19 | 1999-09-15 | 中山大学 | Nanometre inorganic particle toughened reinforced plastics and preparation method thereof |
| US20070173618A1 (en) * | 2006-01-20 | 2007-07-26 | Shaikh Abbas A G | Miscible polycarbonate polyester blends |
| CN101280096A (en) * | 2008-05-20 | 2008-10-08 | 上海大学 | High-glaze strengthened toughened polyethylene glycol terephthalate nanometer composite material and preparation thereof |
| CN101838444A (en) * | 2010-04-13 | 2010-09-22 | 四川中物材料有限责任公司 | Primer-free polyester material for decorating pieces and method for preparing same |
Non-Patent Citations (1)
| Title |
|---|
| 高茜斐等: "高密度聚乙烯接枝甲基丙烯酸缩水甘油酯的研究", 《合成材料老化与应用》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111218061A (en) * | 2020-02-18 | 2020-06-02 | 东莞市高能高分子材料有限公司 | Modified PC/PP plastic and preparation method thereof |
| CN112810116A (en) * | 2020-12-29 | 2021-05-18 | 宁波长阳科技股份有限公司 | Plastic uptake processing method and product |
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Application publication date: 20200131 |