CN114369343A - PET composite material and preparation method and application thereof - Google Patents

PET composite material and preparation method and application thereof Download PDF

Info

Publication number
CN114369343A
CN114369343A CN202111506491.3A CN202111506491A CN114369343A CN 114369343 A CN114369343 A CN 114369343A CN 202111506491 A CN202111506491 A CN 202111506491A CN 114369343 A CN114369343 A CN 114369343A
Authority
CN
China
Prior art keywords
glass fiber
parts
pet composite
ethylene
composite material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202111506491.3A
Other languages
Chinese (zh)
Other versions
CN114369343B (en
Inventor
安朋
陈平绪
叶南飚
刘纪庆
叶士兵
王飞
付大炯
肖军华
许建稳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kingfa Science and Technology Co Ltd
Shanghai Kingfa Science and Technology Co Ltd
Jiangsu Kingfa New Material Co Ltd
Original Assignee
Kingfa Science and Technology Co Ltd
Shanghai Kingfa Science and Technology Co Ltd
Jiangsu Kingfa New Material Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kingfa Science and Technology Co Ltd, Shanghai Kingfa Science and Technology Co Ltd, Jiangsu Kingfa New Material Co Ltd filed Critical Kingfa Science and Technology Co Ltd
Priority to CN202111506491.3A priority Critical patent/CN114369343B/en
Publication of CN114369343A publication Critical patent/CN114369343A/en
Application granted granted Critical
Publication of CN114369343B publication Critical patent/CN114369343B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
    • C08J5/0405—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
    • C08J5/043—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres with glass fibres
    • 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
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02—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
    • C08J2423/04—Homopolymers or copolymers of ethene
    • C08J2423/08—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
    • C08J2425/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
    • C08J2425/02—Homopolymers or copolymers of hydrocarbons
    • C08J2425/04—Homopolymers or copolymers of styrene
    • C08J2425/06—Polystyrene
    • 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
    • C08J2463/00—Characterised by the use of epoxy resins; Derivatives of epoxy resins
    • 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
    • C08J2469/00—Characterised by the use of polycarbonates; Derivatives of polycarbonates
    • 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
    • C08K3/2279—Oxides; Hydroxides of metals of antimony
    • C08K2003/2282—Antimonates
    • 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
    • C08K3/16—Halogen-containing 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
    • C08K3/2279—Oxides; Hydroxides of metals of antimony
    • 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
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
    • C08K5/098—Metal salts of carboxylic acids
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The invention discloses a PET composite material, which comprises the following components in parts by weight: 50-60 parts of PET resin; 20-50 parts of high-modulus glass fiber; 10-15 parts of a brominated flame retardant; 2-5 parts of an antimony-containing compound; 0.5-2.5 parts of ethylene/acrylic ester/glycidyl acrylate copolymer; 0.5-2.5 parts of lithium salt; wherein the weight ratio range of the ethylene/acrylate/glycidyl acrylate copolymer to the lithium salt is 1: (0.7-1.3). According to the invention, the ethylene/acrylate/glycidyl acrylate copolymer and lithium salt in a specific ratio are added into the high-modulus glass fiber reinforced PET composite material, so that the mechanical property can be remarkably improved.

Description

PET composite material and preparation method and application thereof
Technical Field
The invention relates to the technical field of high polymer materials, in particular to a PET composite material and a preparation method and application thereof.
Background
Polyethylene terephthalate (PET) has the advantages of low cost, excellent mechanical property, outstanding electrical insulation property, good heat resistance, corrosion resistance and the like, and is widely used in the fields of fibers, films, engineering plastics and the like.
On one hand, the general glass fiber reinforced PET composite material cannot meet the strength required by a battery part. Therefore, it is desirable to modify with high modulus glass fibers. However, high modulus glass fibers have the characteristics of high strength and high modulus, and sufficient impregnation is difficult to achieve.
On the other hand, as the market demand of new energy vehicles is gradually expanded, the safety of batteries and wire harnesses is more important, and in the assembly and production process of new energy power lithium batteries, the housing and the components of the connector bracket need to be insulated and protected against flame, so that the flame retardant performance of flame retardant PET needs to be remarkably improved, and the risk of ignition is reduced. However, the prior art PET flame retardant system is a brominated/synergist system, and the brominated flame retardant system is easy to bring negative influence on the infiltration of glass fibers (especially high-modulus glass fibers) in the melting process due to the low heat resistance of the brominated flame retardant system, and cannot fully exert all the reinforcing properties of the glass fibers.
Disclosure of Invention
The invention aims to overcome the technical defects and provide the PET composite material with the advantage of good mechanical property.
The invention also aims to provide a preparation method and application of the PET composite material.
The invention is realized by the following technical scheme:
the PET composite material comprises the following components in parts by weight:
50-60 parts of PET resin;
20-50 parts of high-modulus glass fiber;
10-15 parts of a brominated flame retardant;
2-5 parts of an antimony-containing compound;
0.5-2.5 parts of ethylene/acrylic ester/glycidyl acrylate copolymer;
0.5-2.5 parts of lithium salt;
wherein the weight ratio range of the ethylene/acrylate/glycidyl acrylate copolymer to the lithium salt is 1: (0.7-1.3).
The intrinsic viscosity of the PET resin is 0.5-0.8mL/g, and the test standard is ISO 1628-5.
The high modulus glass fiber is selected from one or more of HMG glass fiber, S-1 glass fiber, TM glass fiber and S-2 glass fiber;
s-2 glass fibers are preferred.
The brominated flame retardant is at least one selected from brominated polystyrene, brominated polycarbonate and brominated epoxy.
The antimony-containing compound is at least one selected from antimony trioxide and sodium antimonate.
Preferably, the melt mass flow rate of the ethylene/acrylate/glycidyl acrylate copolymer is 5-15g/10min, the test conditions are 190 ℃ and 2.16kg, and the test standard is ISO 1133-2011. At least one of ethylene-methyl acrylate-glycidyl methacrylate copolymer and ethylene-butyl acrylate-glycidyl methacrylate copolymer, wherein the weight content of the glycidyl acrylate is 3-9 wt%.
The lithium salt is at least one of lithium stearate, lithium benzoate and lithium chloride.
Preferably, the weight ratio of the ethylene/acrylate/glycidyl acrylate copolymer to the lithium salt is in the range of 1: (0.9-1.1).
The preparation method of the PET composite material comprises the following steps: according to the proportion, all the components except the glass fiber are uniformly mixed, and are extruded and granulated by a double-screw extruder, the glass fiber is fed laterally, the temperature of a screw is 80-260 ℃, and the rotating speed range is 250-350rpm, so that the PET composite material is obtained.
The PET composite material is applied to preparing battery accessories.
The invention has the following beneficial effects:
according to the invention, ethylene/acrylate/glycidyl acrylate copolymer and lithium salt in a specific ratio are added into the high-modulus glass fiber reinforced PET composite material, and the epoxy group and the lithium salt are utilized to realize full infiltration of high-modulus glass fiber in a bromine/antimony flame-retardant system and simultaneously promote crystallization, so that the mechanical property is obviously improved.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the invention. All falling within the scope of the present invention.
The raw material sources used in the examples and comparative examples are as follows:
PET resin A: intrinsic viscosity 0.6 mL/g, designation FG600, medium petrochemical.
PET resin B: intrinsic viscosity 0.5 mL/g, trade mark CR-7702, medium petrochemical.
Brominated polystyrene: SAYTEX 621:
high-modulus glass fiber A: HMG 436S;
high-modulus glass fiber B: s-1 Glass;
high-modulus glass fiber C: TM Glass;
high-modulus glass fiber D: s-2 Glass;
ordinary glass fiber: ECS 11-4.5-534A.
Sodium antimonate: sodium antimonate was purchased from alatin reagent limited.
Antimony trioxide: purchased from Chenzhou antimony, Inc.
Ethylene/methyl acrylate/glycidyl methacrylate copolymer a: the weight content of glycidyl methacrylate is 8wt%, the melt mass flow rate is 6g/10min, the test conditions are 190 ℃, 2.16kg, the trade name LOTADER AX8900, Achima.
Ethylene/methyl acrylate/glycidyl methacrylate copolymer B: the weight content of the glycidyl methacrylate is 3wt%, the melt mass flow rate is 4g/10min, the test condition is 190 ℃, 2.16kg, the mark KT-22, Liaoning Ketong.
Ethylene/methyl acrylate/glycidyl methacrylate copolymer C: the weight content of the glycidyl methacrylate is 2.5wt%, the melt mass flow rate is 5g/10min, the test conditions are 190 ℃ and 2.16kg, the self-made method is adopted, and the preparation method comprises the following steps: ethylene-methyl acrylate, glycidyl methacrylate and initiator (dicumyl peroxide) were mixed as 100: 3.5:0.05, extruding by a double-screw extruder, wherein the screw temperature is 80-200 ℃, the rotating speed is 200-300 rpm, and dragging and granulating.
Ethylene/methyl acrylate/glycidyl methacrylate copolymer D: the weight content of the glycidyl methacrylate is 9.5wt%, the melt mass flow rate is 15g/10min, the test conditions are 190 ℃ and 2.16kg, the self-made method is adopted, and the preparation method comprises the following steps: ethylene-methyl acrylate, glycidyl methacrylate and initiator (dicumyl peroxide) were mixed as 100: 10.5:0.1, extruding by a double-screw extruder, wherein the screw temperature is 80-200 ℃, the rotating speed is 200-300 rpm, and dragging and granulating.
Ethylene/butyl acrylate/glycidyl methacrylate copolymer: the glycidyl methacrylate content was 6wt%, the melt mass flow rate was 12g/10min, the test conditions 190 ℃ 2.16kg, trade name Elvaloy PTW, Dow.
Lithium stearate: aladdin reagents, Inc.;
lithium benzoate: aladdin reagents, Inc.;
lithium chloride: aladdin reagents, Inc.;
examples and comparative examples preparation of PET composites: according to the proportion, all the components except the glass fiber are uniformly mixed, extruded and granulated by a double-screw extruder, the glass fiber is fed laterally, the temperature of the screw is 80/230/260/240/230/220/200/200/200/200/200/240 ℃ respectively, and the rotating speed range is 300rpm, so that the PET composite material is obtained.
The test methods are as follows:
(1) impact strength of the simply supported beam notch: according to ISO179/1eA standard, the glass fiber reinforced PET composite material is molded into a test sample strip with the thickness of 4mm by using an injection molding machine, and the impact strength of a simple beam notch of the sample strip is tested at 23 ℃.
(2) Tensile strength: according to ISO527-1/2, the glass fiber reinforced PET composite material is molded into a test strip with a thickness of 4mm by using an injection molding machine, and the tensile strength of the test strip is tested under the test conditions of 23 ℃ and a test speed of 5 mm/min.
Table 1: EXAMPLES 1-8 PET COMPOSITE MATERIAL COMPONENTS (pbw) AND TEST RESULTS
Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Example 7 Example 8
PET resin A 55 55 55 55 55 55 55
PET resin B 55
High modulus glass fiber A 35 35 20 50 35 35 35 35
Brominated polystyrene 12 12 10 15 12 12 12 12
Antimonic acid sodium salt 2.5 2.5 2 5 2.5 2.5 2.5 2.5
Ethylene/methyl acrylate/glycidyl methacrylate copolymer A 1.5 1.5 0.5 2.5 2 2 2 2
Lithium stearate 1.5 1.5 0.5 2.5 1.4 1.8 2.2 2.6
Impact strength of simply supported beam gap, kJ/m2 10.8 10.5 7.9 11.0 10.0 11.0 11.0 10.2
Tensile Strength, MPa 145 143 125 155 142 147 148 142
From examples 5 to 8, it is clear that the preferred weight ratio of ethylene/acrylic ester/glycidyl acrylate copolymer to lithium salt significantly improves the notched impact strength and tensile strength.
Table 2: examples 9-14 PET composite Components (parts by weight) and test results
Example 9 Example 10 Example 11 Example 12 Example 13 Example 14
PET resin A 55 55 55 55 55 55
High modulus glass fiber A 35 35 35
High modulus glass fiber B 35
High modulus glass fiber C 35
High modulus glass fiber D 35
Brominated polystyrene 12 12 12 12 12 12
Antimonic acid sodium salt 2.5 2.5 2.5 2.5 2.5
Antimony trioxide 2.5
Ethylene/methyl acrylate/glycidyl methacrylate copolymer A 1.5 1.5 1.5 1.5
Lithium stearate 1.5 1.5 1.5 1.5
Lithium benzoate 1.5
Lithium chloride 1.5
Impact strength of simply supported beam gap, kJ/m2 11.5 11.5 11.9 10.2 10.6 10.7
Tensile strength, MPa 150 150 153 142 143 145
From example 1/9-11, S-2 glass fiber is preferred.
Table 3: examples 15-18PET composite Components (parts by weight) and test results
Example 15 Example 16 Example 17 Example 18
PET resin A 55 55 55 55
High modulus glass fiber A 35 35 35 35
Brominated polystyrene 12 12 12 12
Antimonic acid sodium salt 2.5 2.5 2.5 2.5
Ethylene/methyl acrylate/glycidyl methacrylate copolymer B 1.5
Ethylene/methyl acrylate/glycidyl methacrylate copolymer C 1.5
Ethylene/methyl acrylate/glycidyl methacrylate copolymer D 1.5
Ethylene/butyl acrylate/glycidyl methacrylate copolymers 1.5
Lithium stearate 1.5 1.5 1.5 1.5
The impact strength of the gap of the simply supported beam,kJ/m2 10.7 9.8 10.0 10.8
tensile strength, MPa 145 139 139 145
From examples 1/15-18, it is preferred that the weight content of glycidyl methacrylate in the ethylene/methyl acrylate/glycidyl methacrylate copolymer be in the range of 3-9 wt.%.
Table 4: comparative example PET composite Material Components (parts by weight) and test results
Comparative example 1 Comparative example 2 Comparative example 3 Comparative example 4 Comparative example 5 Comparative example 6
PET resin A 55 55 55 55 55 55
High modulus glass fiber A 20 20 20 20 20
Ordinary glass fiber 20
Brominated polystyrene 10 10 10 10 10 10
Antimonic acid sodium salt 2 2 2 2 2 2
Ethylene/methyl acrylate/glycidyl methacrylate copolymer A 1 1 1 1 0 0.4
Lithium stearate 0 0.4 1.5 0.7 0.5 0.5
Impact strength of simply supported beam gap, kJ/m2 6.5 6.6 6.7 6.0 5.8 6.0
Tensile strength, MPa 115 117 117 115 112 113
From comparative examples 1 to 3/5/6, it is clear that the mechanical properties are poor without adding lithium stearate or ethylene-methyl acrylate-glycidyl methacrylate copolymer, or the ratio of the two is outside the range of the present invention.
Continuing with Table 4:
comparative example 7 Comparative example 8 Comparative example 9
PET resin A 55 55 55
High modulus glass fiber A 20 20 20
Ordinary glass fiber
Brominated polystyrene 10 10 10
Antimonic acid sodium salt 2 2 2
Ethylene/methyl acrylate/glycidyl methacrylate copolymer A 3 0.5 3
Lithium stearate 0.5 3 3
Impact strength of simply supported beam gap, kJ/m2 5.5 6.0 5.2
Tensile strength, MPa 105 108 103
From comparative examples 7 to 9, it is understood that when the contents of the ethylene/methyl acrylate/glycidyl methacrylate copolymer and lithium stearate are too high, the mechanical properties are rather deteriorated.

Claims (10)

1. The PET composite material is characterized by comprising the following components in parts by weight:
50-60 parts of PET resin;
20-50 parts of high-modulus glass fiber;
10-15 parts of a brominated flame retardant;
2-5 parts of an antimony-containing compound;
0.5-2.5 parts of ethylene/acrylic ester/glycidyl acrylate copolymer;
0.5-2.5 parts of lithium salt;
wherein the weight ratio range of the ethylene/acrylate/glycidyl acrylate copolymer to the lithium salt is 1: (0.7-1.3).
2. The PET composite of claim 1, wherein the intrinsic viscosity of the PET resin is 0.5 to 0.8 mL/g.
3. The PET composite material according to claim 1, wherein the high modulus glass fiber is selected from one or more of HMG glass fiber, S-1 glass fiber, TM glass fiber and S-2 glass fiber; s-2 glass fibers are preferred.
4. The PET composite of claim 1, wherein the brominated flame retardant is at least one selected from the group consisting of brominated polystyrene, brominated polycarbonate, and brominated epoxy.
5. The PET composite material according to claim 1 wherein the antimony-containing compound is at least one selected from antimony trioxide and sodium antimonate.
6. The PET composite material according to claim 1, wherein the ethylene/acrylic ester/glycidyl acrylate copolymer has a melt mass flow rate of 5-15g/10min, and the test conditions are 190 ℃ and 2.16kg, and is at least one selected from the group consisting of an ethylene-methyl acrylate-glycidyl methacrylate copolymer and an ethylene-butyl acrylate-glycidyl methacrylate copolymer, wherein the weight content of glycidyl acrylate is 3-9 wt%.
7. The PET composite of claim 1, wherein the lithium salt is at least one of lithium stearate, lithium benzoate, and lithium chloride.
8. The PET composite of claim 1, wherein the weight ratio of the ethylene/acrylate/glycidyl acrylate copolymer to the lithium salt is in the range of 1: (0.9-1.1).
9. A process for the preparation of a PET composite material according to any one of claims 1 to 8, characterized in that it comprises the following steps: according to the proportion, all the components except the high modulus glass fiber are uniformly mixed, and are extruded and granulated by a double-screw extruder, the glass fiber is fed laterally, the temperature of a screw is 80-260 ℃, and the rotating speed range is 250 plus 350rpm, so that the PET composite material is obtained.
10. Use of a PET composite according to any one of claims 1 to 8 for the preparation of a battery fitting.
CN202111506491.3A 2021-12-10 2021-12-10 PET composite material and preparation method and application thereof Active CN114369343B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111506491.3A CN114369343B (en) 2021-12-10 2021-12-10 PET composite material and preparation method and application thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111506491.3A CN114369343B (en) 2021-12-10 2021-12-10 PET composite material and preparation method and application thereof

Publications (2)

Publication Number Publication Date
CN114369343A true CN114369343A (en) 2022-04-19
CN114369343B CN114369343B (en) 2023-05-16

Family

ID=81140000

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111506491.3A Active CN114369343B (en) 2021-12-10 2021-12-10 PET composite material and preparation method and application thereof

Country Status (1)

Country Link
CN (1) CN114369343B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115926398A (en) * 2022-12-29 2023-04-07 江苏金发科技新材料有限公司 Polyester copolymer composite material and preparation method and application thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1377386A (en) * 1999-10-01 2002-10-30 帝人株式会社 Flame-retardant polyester resin composition, molded article thereof, and method of molding the same
CN104081286A (en) * 2012-03-01 2014-10-01 惠普发展公司，有限责任合伙企业 Charge roller
CN104774449A (en) * 2015-04-22 2015-07-15 合肥康龄养生科技有限公司 High-toughness nylon composite material and preparation method thereof
CN106147153A (en) * 2016-08-05 2016-11-23 上海金发科技发展有限公司 A kind of glass fiber reinforced flame retardant PBT/PET resin combination of high fluidity low melting point and preparation method thereof
CN112745642A (en) * 2020-12-15 2021-05-04 金发科技股份有限公司 Low-mold-fouling flame-retardant reinforced PBT (polybutylene terephthalate) composite material as well as preparation method and application thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1377386A (en) * 1999-10-01 2002-10-30 帝人株式会社 Flame-retardant polyester resin composition, molded article thereof, and method of molding the same
CN104081286A (en) * 2012-03-01 2014-10-01 惠普发展公司，有限责任合伙企业 Charge roller
CN104774449A (en) * 2015-04-22 2015-07-15 合肥康龄养生科技有限公司 High-toughness nylon composite material and preparation method thereof
CN106147153A (en) * 2016-08-05 2016-11-23 上海金发科技发展有限公司 A kind of glass fiber reinforced flame retardant PBT/PET resin combination of high fluidity low melting point and preparation method thereof
CN112745642A (en) * 2020-12-15 2021-05-04 金发科技股份有限公司 Low-mold-fouling flame-retardant reinforced PBT (polybutylene terephthalate) composite material as well as preparation method and application thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
邵会菊等: "接枝POE增韧尼龙6的性能", 塑料 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115926398A (en) * 2022-12-29 2023-04-07 江苏金发科技新材料有限公司 Polyester copolymer composite material and preparation method and application thereof
CN115926398B (en) * 2022-12-29 2024-06-18 江苏金发科技新材料有限公司 Polyester copolymer composite material and preparation method and application thereof

Also Published As

Publication number Publication date
CN114369343B (en) 2023-05-16

Similar Documents

Publication Publication Date Title
CN108117735B (en) High-performance halogen-free flame-retardant polycarbonate material and preparation method thereof
CN106189126B (en) A kind of low molding cycle flame-retardant strengthening polythylene terephthalate (PET) material of high heat distortion temperature and preparation method
CN107652641B (en) Low-cost bio-based fully-degradable high-permeability membrane and preparation method thereof
CN104371162A (en) Flame-retardant wear-resisting modified polypropylene material and preparation method thereof
CN107586447A (en) A kind of dumb light PC/PBT alloy materials and preparation method thereof
CN115746563B (en) PPS composition and preparation method and application thereof
CN107974057A (en) A kind of heat-resisting low warpage conduction PBT/PCT alloys of high-rigidity high-ductility
CN114369343B (en) PET composite material and preparation method and application thereof
CN113061303A (en) Glass fiber reinforced polypropylene material and preparation method thereof
CN114426760A (en) Hydrolysis-resistant polyester-based composite material and preparation method thereof
CN109627657B (en) Acrylonitrile-styrene copolymer/chlorinated polyvinyl chloride alloy material and preparation method thereof
CN108424642A (en) One kind can laser engraving fire-retardant nylon PA66 materials and preparation method thereof
CN113321873A (en) Low-shrinkage high-toughness modified polypropylene material and preparation method thereof
CN103073855A (en) Polyester composition, preparation method and applications thereof
CN103756268A (en) Polyimide fiber enhanced PBT (Polybutylece Terephthalate) composite material and preparation method thereof
CN103602063A (en) Toughened plasticized nylon 612 composite material and preparation method and applications thereof
CN114591567B (en) Glass fiber reinforced flame-retardant polypropylene composite material and preparation method and application thereof
CN102816415A (en) High-flame-retardant high-flowability polybutylene terephthalate resin composition
CN107312304B (en) Two-dimensional reinforced polycarbonate composite material and preparation method thereof
CN112745641B (en) Low TVOC flame-retardant reinforced PBT composite material and preparation method and application thereof
CN112679946A (en) High-temperature-resistant high-humidity-resistant flame-retardant reinforced PA66 composite material and preparation method thereof
CN107325431A (en) A kind of fire-retardant long glass fiber reinforced polyvinyl chloride（PVC）Composite and preparation method thereof
CN102898835A (en) Long glass fiber reinforced thermal insulation polyphenylene sulfide composite material and preparation method thereof
CN108530850B (en) A kind of fire retardant PBT with no halogen/ASA alloy and preparation method thereof
CN105199217A (en) Flame-retardant easy-welding and pressure-resistant polypropylene material and preparation method and application thereof

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant