CN111040391A - Flame-retardant PET packaging tape material and preparation method thereof - Google Patents
Flame-retardant PET packaging tape material and preparation method thereof Download PDFInfo
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- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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Abstract
The invention discloses a flame-retardant PET packing belt material and a preparation method thereof, wherein the flame-retardant PET packing belt material comprises the following raw materials in percentage by weight: 75-85% of PET resin, 10-20% of flame retardant, 0.3-2% of antioxidant, 0.01-2% of tackifier, 0.01-0.5% of lubricant and 0.01-0.5% of hydrolysis resistance agent. The invention can greatly improve the flame retardant property of the PET material by optimizing the flame retardant, achieves the UL94V0 grade and simultaneously obtains higher electrical insulation property, and in addition, the optimized antioxidant auxiliary agent combination and hydrolysis resistance agent are added, so that the long-acting aging resistance and hydrolysis resistance of the material are improved. Finally, through a large number of experiments, the long-acting aging-resistant flame-retardant PET strap material for the automobile battery with excellent flame retardant property and electrical insulation property and excellent tensile strength is obtained, the material quality is improved, and the application range of the material is widened.
Description
Technical Field
The invention relates to the technical field of new modified materials, in particular to a flame-retardant PET packing belt material and a preparation method thereof.
Background
The PET (polyethylene terephthalate) material has highly symmetrical molecular structure, certain crystal orientation capability and higher film forming property, and the PET plastic has the advantages of good friction resistance, small abrasion, high hardness, good electrical insulation property, good chemical resistance stability, creep resistance, fatigue resistance, high toughness and dimensional stability. The material is suitable for the electronic and electrical industry and the automobile industry, and is used for various coil frameworks, transformers, televisions, recorder parts and shells, automobile lamp holders, lamp shades, incandescent lamp holders, relays, selenium rectifiers and the like.
With the wide application of PET materials and the rapid development trend of new energy automobiles, more and more parts select the PET materials, the PET materials with excellent chemical resistance are used for packing belt products of automobile batteries due to the application requirements of the new energy automobile batteries, the application of the PET in the aspect of the new energy batteries is limited due to the poor flame retardant property and insulation property of the PET materials, meanwhile, due to the molecular structure of the PET materials, the long-period aging resistance and hydrolysis resistance of the PET materials are poor, and the failure risk exists in the practical use process.
Therefore, in order to solve the technical problems, the invention provides a flame-retardant PET strapping tape material and a preparation method thereof, the flame retardant is preferably selected, the flame retardant property of the PET material can be greatly improved, the electrical insulation property is higher while the UL94V0 grade is achieved, and the long-acting aging resistance and hydrolysis resistance of the material are improved by adding the preferred antioxidant auxiliary agent combination and hydrolysis resistance agent.
Disclosure of Invention
In view of the above, the invention provides a flame-retardant PET strapping material and a preparation method thereof, the flame-retardant PET strapping material provided by the invention can greatly improve the flame-retardant property of the PET material by optimizing the flame retardant, and can obtain higher electrical insulation property while reaching the UL94V0 grade, and in addition, the optimized antioxidant auxiliary agent combination and hydrolysis resistance agent are added, so that the long-acting aging resistance and hydrolysis resistance of the material are improved. Finally, through a large number of experiments, the long-acting aging-resistant flame-retardant PET strap material for the automobile battery with excellent flame retardant property and electrical insulation property and excellent tensile strength is obtained, the material quality is improved, and the application range of the material is widened.
In order to achieve the purpose, the invention adopts the following technical scheme:
a flame-retardant PET strapping material comprises the following raw materials in percentage by weight: 75-85% of PET resin, 10-20% of flame retardant, 0.3-2% of antioxidant, 0.01-2% of tackifier, 0.01-0.2% of lubricant and 0.01-0.5% of hydrolysis resistance agent.
The invention can greatly improve the flame retardant property of the PET material by optimizing the flame retardant, achieves the UL94V0 grade and simultaneously obtains higher electrical insulation property, and in addition, the optimized antioxidant auxiliary agent combination and hydrolysis resistance agent are added, so that the long-acting aging resistance and hydrolysis resistance of the material are improved.
Preferably, the viscosity of the PET resin is 0.6-1.2 dl/gr.
Preferably, the flame retardant is a mixture of decabromodiphenylethane, brominated polystyrene, zinc borate and antimony trioxide, and the weight ratio of the decabromodiphenylethane, the brominated polystyrene, the zinc borate and the antimony trioxide in the flame retardant is (6-8): 2-3): 1-2: 3-4.
Preferably, the weight ratio of decabromodiphenylethane to brominated polystyrene to zinc borate to antimony trioxide in the flame retardant is 8:3:2: 3.
Preferably, the antioxidant is a mixture of hindered phenols, phosphites and thioesters, and the weight ratio of the hindered phenols, phosphites and thioesters in the antioxidant is (1.5-2): (2-3): (1.5-2).
Preferably, the weight ratio of the hindered phenol, the phosphite ester and the thioester in the antioxidant is 2:3: 2.
Preferably, the hindered phenol is a hindered phenol 1076, the phosphite is a phosphite 168 or a phosphite T-9228, and the thioester is a thioester 412S.
Preferably, the tackifier is acrylonitrile-styrene coated polytetrafluoroethylene.
Preferably, the lubricant is any one of zinc stearate, calcium stearate and pentaerythritol stearate.
Preferably, the hydrolysis resistance agent is carbodiimide.
The invention can greatly improve the flame retardant property of the PET material by optimizing the flame retardant, achieves the UL94V0 grade and simultaneously obtains higher electrical insulation property, and in addition, the optimized antioxidant auxiliary agent combination and hydrolysis resistance agent are added, so that the long-acting aging resistance and hydrolysis resistance of the material are improved.
The preparation method of the flame-retardant PET strapping material comprises the following steps:
(1) weighing raw materials according to the flame-retardant PET strapping material of any one of claims 1 to 8;
(2) drying the raw materials, uniformly mixing, adding into an extruder, heating, and extruding;
(3) and cooling, granulating, drying, drawing, forming and packaging the extruded raw materials to obtain the flame-retardant PET packing belt material.
Preferably, the heating in the step (2) is segmented temperature-controlled heating, and the segmented temperature is as follows: 180 plus or minus 20 ℃, 210 plus or minus 20 ℃, 240 plus or minus 20 ℃, 250 plus or minus 20 ℃, 255 plus or minus 20 ℃ and 245 plus or minus 20 ℃.
Preferably, the main machine rotating speed of the extruder in the step (2) is 300 r/min.
The invention adopts a proper processing method, and can obtain the packing belt material with a real state.
According to the technical scheme, compared with the prior art, the invention has the following beneficial effects: the invention can greatly improve the flame retardant property of the PET material by optimizing the flame retardant, achieves the UL94V0 grade and simultaneously obtains higher electrical insulation property, and in addition, the optimized antioxidant auxiliary agent combination and hydrolysis resistance agent are added, so that the long-acting aging resistance and hydrolysis resistance of the material are improved. Finally, through a large number of experiments, the long-acting aging-resistant flame-retardant PET strap material for the automobile battery with excellent flame retardant property and electrical insulation property and excellent tensile strength is obtained, the material quality is improved, and the application range of the material is widened.
Detailed Description
The technical solutions in the embodiments of the present invention will be 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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A flame-retardant PET strapping material comprises the following raw materials in percentage by weight: 75% of PET resin, 20% of flame retardant, 2% of antioxidant, 2% of acrylonitrile-styrene coated polytetrafluoroethylene, 0.5% of zinc stearate and 0.5% of carbodiimide;
wherein the viscosity of the PET resin is 1.2 dl/gr.
The flame retardant is a mixture of decabromodiphenylethane, brominated polystyrene, zinc borate and antimony trioxide, and the weight ratio is 8:3:2: 3.
The antioxidant is hindered phenol 1076, phosphite ester 168 and thioester 412S, and the weight ratio is 2:3: 2.
The preparation of the flame-retardant PET packing belt material specifically comprises the following steps:
(1) mixing materials: drying the raw materials, mixing, continuously and uniformly adding the mixture into a main machine cylinder of a double-screw extruder (the diameter of a screw is 35mm, the length-diameter ratio L/D is 36) by using a double-screw feeder after mixing, and controlling the temperature of the main machine cylinder (from a feed inlet to a machine head outlet) in a segmented manner to be 180 +/-20 ℃, 210 +/-20 ℃, 240 +/-20 ℃, 250 +/-20 ℃, 255 +/-20 ℃, 245 +/-20 ℃ and the rotating speed of the double screws to be 300 revolutions per minute;
(2) discharging: after heating, extruding the mixture by an extruder, cooling extruded strips by a water tank, granulating, drying at 130 ℃ for 4 hours in a blast oven to obtain initial particles, and then producing a packing belt product by the extruder at the extrusion temperature of 250 ℃; immediately putting the extruded packing belt product into a glass dryer, and carrying out performance test after the packing belt product is placed for at least 24 hours at room temperature; and (3) carrying out an aging test on partial products after the 2 sections of packing belts are connected together in a hot-pressing and lap joint manner by using a hot press, and after the aging test is finished, placing the products in a glass dryer for at least 24 hours at room temperature for performance test.
Example 2
A flame-retardant PET strapping material comprises the following raw materials in percentage by weight: 75% of PET resin, 20% of flame retardant, 2% of antioxidant, 2% of acrylonitrile-styrene coated polytetrafluoroethylene, 0.5% of zinc stearate and 0.5% of carbodiimide;
wherein the viscosity of the PET resin is 1.2 dl/gr.
The flame retardant is a mixture of decabromodiphenylethane, brominated polystyrene, zinc borate and antimony trioxide, and the weight ratio is 6:2:1: 3.
The antioxidant is hindered phenol 1076, phosphite ester 168 and thioester 412S, and the weight ratio is 1.5:2: 1.5.
The preparation of the flame-retardant PET packing belt material specifically comprises the following steps:
(1) mixing materials: drying the raw materials, mixing, continuously and uniformly adding the mixture into a main machine cylinder of a double-screw extruder (the diameter of a screw is 35mm, the length-diameter ratio L/D is 36) by using a double-screw feeder after mixing, and controlling the temperature of the main machine cylinder (from a feed inlet to a machine head outlet) in a segmented manner to be 180 +/-20 ℃, 210 +/-20 ℃, 240 +/-20 ℃, 250 +/-20 ℃, 255 +/-20 ℃, 245 +/-20 ℃ and the rotating speed of the double screws to be 300 revolutions per minute;
(2) discharging: after heating, extruding the mixture by an extruder, cooling extruded strips by a water tank, granulating, drying at 130 ℃ for 4 hours in a blast oven to obtain initial particles, and then producing a packing belt product by the extruder at the extrusion temperature of 250 ℃; immediately putting the extruded packing belt product into a glass dryer, and carrying out performance test after the packing belt product is placed for at least 24 hours at room temperature; and (3) carrying out an aging test on partial products after the 2 sections of packing belts are connected together in a hot-pressing and lap joint manner by using a hot press, and after the aging test is finished, placing the products in a glass dryer for at least 24 hours at room temperature for performance test.
Example 3
A flame-retardant PET strapping material comprises the following raw materials in percentage by weight: 75% of PET resin, 20% of flame retardant, 2% of antioxidant, 2% of acrylonitrile-styrene coated polytetrafluoroethylene, 0.5% of zinc stearate and 0.5% of carbodiimide;
wherein the viscosity of the PET resin is 1.2 dl/gr.
The flame retardant is a mixture of decabromodiphenylethane, brominated polystyrene, zinc borate and antimony trioxide, and the weight ratio is 8:3:2: 4.
The antioxidant is hindered phenol 1076, phosphite ester 168 and thioester 412S, and the weight ratio is 2:3: 2.
The preparation of the flame-retardant PET packing belt material specifically comprises the following steps:
(1) mixing materials: drying the raw materials, mixing, continuously and uniformly adding the mixture into a main machine cylinder of a double-screw extruder (the diameter of a screw is 35mm, the length-diameter ratio L/D is 36) by using a double-screw feeder after mixing, and controlling the temperature of the main machine cylinder (from a feed inlet to a machine head outlet) in a segmented manner to be 180 +/-20 ℃, 210 +/-20 ℃, 240 +/-20 ℃, 250 +/-20 ℃, 255 +/-20 ℃, 245 +/-20 ℃ and the rotating speed of the double screws to be 300 revolutions per minute;
discharging: after heating, extruding the mixture by an extruder, cooling extruded strips by a water tank, granulating, drying at 130 ℃ for 4 hours in a blast oven to obtain initial particles, and then producing a packing belt product by the extruder at the extrusion temperature of 250 ℃; immediately putting the extruded packing belt product into a glass dryer, and carrying out performance test after the packing belt product is placed for at least 24 hours at room temperature; and (3) carrying out an aging test on partial products after the 2 sections of packing belts are connected together in a hot-pressing and lap joint manner by using a hot press, and after the aging test is finished, placing the products in a glass dryer for at least 24 hours at room temperature for performance test.
Example 4
A flame-retardant PET strapping material comprises the following raw materials in percentage by weight: 85% of PET resin, 10% of flame retardant, 2% of antioxidant, 2% of acrylonitrile-styrene coated polytetrafluoroethylene, 0.5% of calcium stearate and 0.5% of carbodiimide;
wherein the viscosity of the PET resin is 1.2 dl/gr.
The flame retardant is a mixture of decabromodiphenylethane, brominated polystyrene, zinc borate and antimony trioxide, and the weight ratio is 8:3:2: 3.
The antioxidant is hindered phenol 1076, phosphite ester 168 and thioester 412S, and the weight ratio is 2:3: 2.
The preparation of the flame-retardant PET packing belt material specifically comprises the following steps:
(1) mixing materials: drying the raw materials, mixing, continuously and uniformly adding the mixture into a main machine cylinder of a double-screw extruder (the diameter of a screw is 35mm, the length-diameter ratio L/D is 36) by using a double-screw feeder after mixing, and controlling the temperature of the main machine cylinder (from a feed inlet to a machine head outlet) in a segmented manner to be 180 +/-20 ℃, 210 +/-20 ℃, 240 +/-20 ℃, 250 +/-20 ℃, 255 +/-20 ℃, 245 +/-20 ℃ and the rotating speed of the double screws to be 300 revolutions per minute;
(2) discharging: after heating, extruding the mixture by an extruder, cooling extruded strips by a water tank, granulating, drying at 130 ℃ for 4 hours in a blast oven to obtain initial particles, and then producing a packing belt product by the extruder at the extrusion temperature of 250 ℃; immediately putting the extruded packing belt product into a glass dryer, and carrying out performance test after the packing belt product is placed for at least 24 hours at room temperature; and (3) carrying out an aging test on partial products after the 2 sections of packing belts are connected together in a hot-pressing and lap joint manner by using a hot press, and after the aging test is finished, placing the products in a glass dryer for at least 24 hours at room temperature for performance test.
Example 5
A flame-retardant PET strapping material comprises the following raw materials in percentage by weight: 80% of PET resin, 19.67% of flame retardant, 0.3% of antioxidant, 0.01% of acrylonitrile-styrene coated polytetrafluoroethylene, 0.01% of pentaerythritol stearate and 0.01% of carbodiimide;
wherein the viscosity of the PET resin is 1.2 dl/gr.
The flame retardant is a mixture of decabromodiphenylethane, brominated polystyrene, zinc borate and antimony trioxide, and the weight ratio is 8:3:2: 3.
The antioxidant is hindered phenol 1076, phosphite ester T-9228 and thioester 412S, and the weight ratio is 2:3: 2.
The preparation of the flame-retardant PET packing belt material specifically comprises the following steps:
(1) mixing materials: drying the raw materials, mixing, continuously and uniformly adding the mixture into a main machine cylinder of a double-screw extruder (the diameter of a screw is 35mm, the length-diameter ratio L/D is 36) by using a double-screw feeder after mixing, and controlling the temperature of the main machine cylinder (from a feed inlet to a machine head outlet) in a segmented manner to be 180 +/-20 ℃, 210 +/-20 ℃, 240 +/-20 ℃, 250 +/-20 ℃, 255 +/-20 ℃, 245 +/-20 ℃ and the rotating speed of the double screws to be 300 revolutions per minute;
(2) discharging: after heating, extruding the mixture by an extruder, cooling extruded strips by a water tank, granulating, drying at 130 ℃ for 4 hours in a blast oven to obtain initial particles, and then producing a packing belt product by the extruder at the extrusion temperature of 250 ℃; immediately putting the extruded packing belt product into a glass dryer, and carrying out performance test after the packing belt product is placed for at least 24 hours at room temperature; and (3) carrying out an aging test on partial products after the 2 sections of packing belts are connected together in a hot-pressing and lap joint manner by using a hot press, and after the aging test is finished, placing the products in a glass dryer for at least 24 hours at room temperature for performance test.
Examples 1-3 the results of the performance testing of the strapping materials are shown in table 1.
Table 1 examples 1-3 performance test results for strapping materials
| Detecting items | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 |
| Body stretching force (N) | 3812 | 3710 | 3722 | 3785 | 3752 |
| Body stretching force after aging (N) | 2431 | 2276 | 2231 | 2376 | 2331 |
| Lap joint drawing force (N) | 1725 | 1611 | 1683 | 1711 | 1693 |
| Aged lap joint tensile force (N) | 1137 | 1008 | 1005 | 1098 | 1065 |
| Insulation resistance (M omega) | ＞9999 | ＞9999 | ＞9999 | ＞9999 | ＞9999 |
| Flame retardant grade (grade) | V0 | V0 | V0 | V0 | V0 |
As can be seen from Table 1, the packing belt material prepared by the invention has better performances in the aspects of body stretching force, aged body stretching force, flame retardant grade and the like than the packing belt prepared by the traditional material, and has remarkable progress.
Comparative example 1
The raw materials comprise: 2 percent of the antioxidant is hindered phenol 1076 and a mixture of phosphite esters T-9228, and the weight ratio is 2: 3.
The rest of the components and the preparation method are completely the same as the example 1.
Comparative example 2
The raw materials comprise: 75.5% of PET resin without carbodiimide, and the rest of the components and the preparation method are completely the same as example 1.
Comparative example 3
The raw materials comprise: no acrylonitrile-styrene-coated polytetrafluoroethylene was added, the PET resin was 77%, and the remaining components were completely the same as in example 1.
Comparative example 4
The raw materials comprise: 2 percent of antioxidant is hindered phenol 1076 and phosphite ester T-9228 weight ratio is 2:3, acrylonitrile-styrene coated polytetrafluoroethylene and carbodiimide are not added, 77.5 percent of PET resin, and the rest components and the preparation method are completely the same as the example 1.
The results of the performance tests of the strapping materials of comparative examples 1 to 4 are shown in Table 2.
Table 2 results of performance testing of comparative example 1-4 strapping materials
| Detecting items | Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 |
| Bulk tensile force N | 3612 | 3685 | 3413 | 3049 |
| Bulk tensile force N after aging | 2231 | 1902 | 2176 | 1172 |
| Lap joint tensile force N | 1725 | 1711 | 1655 | 1488 |
| Aged lap joint tensile force N | 1037 | 877 | 1011 | 601 |
| Insulation resistance, M.OMEGA | ＞9999 | ＞9999 | ＞9999 | ＞9999 |
| Flame retardant rating, grade | V0 | V0 | V0 | V0 |
As can be seen from Table 2, the tackifier acrylonitrile-styrene coated polytetrafluoroethylene has an effect of improving the tensile force of the whole material, and when the hydrolysis resistance agent carbodiimide is not added and the content of the antioxidant is insufficient, the tensile force of the aged packing belt is low.
Comparative example 5
The raw materials comprise: the preparation method of the PET resin is completely the same as that of comparative example 4 except that no flame retardant is added, and the rest components account for 97.5%.
Comparative example 6
The raw materials comprise: 77.5% PET resin, viscosity 0.6dl/gr, the rest of the components being prepared exactly as in comparative example 4.
Comparative example 7
The raw materials comprise: 77.5% PET resin, viscosity of 0.8dl/gr, the rest of the components being prepared exactly as in comparative example 4.
Comparative example 8
The raw materials comprise: 77.5% PET resin, viscosity 1.0dl/gr, the rest of the components being prepared exactly as in comparative example 4.
The results of the performance tests of the strapping materials of comparative examples 5 to 8 are shown in Table 3.
TABLE 3 results of the Performance test of comparative examples 5-8 strapping materials
| Detecting items | Comparative example 5 | Comparative example 6 | Comparative example 7 | Comparative example 8 |
| Tensile strength of body | 2439 | 836 | 1211 | 2214 |
| Tensile strength of aged body | 937 | 308 | 449 | 867 |
| Lap joint tensile strength | 1190 | 399 | 631 | 1186 |
| Tensile strength of aged lap joint | 480 | 187 | 258 | 471 |
| Insulation resistance | - | ＞9999 | ＞9999 | ＞9999 |
| Flame retardant rating | HB | V0 | V0 | V0 |
It can be seen from tables 2 and 3 that by adding the flame retardant and the flame retardant synergist with the highest flame retardant efficiency, the PET material with the flame retardant performance of V0 grade and the insulation resistance of more than 9999M omega is obtained, the tensile strength of the PET material is improved to a certain extent by adding the flame retardant, and it can be seen from the comparative example that after the flame retardant is added, the packaging tapes produced by the PET materials with different viscosities have great difference in tensile strength, the final packaging tape product produced by using the PET material with the viscosity of 1.2 has the highest tensile strength (comparative example 4), but does not meet the requirements, and the tensile strength of the aged body and lap joint is very low, so that the overall strength and the aging resistance of the material are required to be further improved.
The tensile strength of the final flame-retardant packing belt product and the tensile strength after aging are improved by improving the antioxidant system, viscosity and hydrolysis resistance of the whole material, so that the long-term use requirements of customers can be met, and the failure risk is reduced.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The flame-retardant PET packing belt material is characterized by comprising the following raw materials in percentage by weight: 75-85% of PET resin, 10-20% of flame retardant, 0.3-2% of antioxidant, 0.01-2% of tackifier, 0.01-0.5% of lubricant and 0.01-0.5% of hydrolysis resistance agent.
2. The flame retardant PET strapping material of claim 1 wherein the viscosity of the PET resin is in the range of 0.6 to 1.2 dl/gr.
3. The flame retardant PET strapping material as in claim 1, wherein the flame retardant is a mixture of decabromodiphenylethane, brominated polystyrene, zinc borate and antimony trioxide, and the weight ratio of decabromodiphenylethane, brominated polystyrene, zinc borate and antimony trioxide in the flame retardant is (6-8): (2-3): (1-2): (3-4).
4. The flame retardant PET strapping material as in claim 1, wherein the antioxidant is a mixture of hindered phenols, phosphites and thioesters, and the weight ratio of hindered phenols, phosphites and thioesters in the antioxidant is (1.5-2): (2-3): (1.5-2).
5. The flame retardant PET strapping material of claim 4 wherein the hindered phenol is hindered phenol 1076, the phosphite is phosphite 168 or phosphite T-9228, and the thioester is thioester 412S.
6. The flame retardant PET strapping material of claim 1 wherein the tackifier is acrylonitrile-styrene coated polytetrafluoroethylene.
7. The flame retardant PET strapping material as claimed in claim 1, wherein the lubricant is any one of zinc stearate, calcium stearate, pentaerythritol stearate.
8. The flame retardant PET strapping material of claim 1 wherein the hydrolysis resistance agent is carbodiimide.
9. The preparation method of the flame-retardant PET strapping material is characterized by comprising the following steps of:
(1) weighing raw materials according to the flame-retardant PET strapping material of any one of claims 1 to 8;
(2) drying the raw materials, uniformly mixing, adding into an extruder, heating, and extruding;
(3) and cooling, granulating, drying, drawing, forming and packaging the extruded raw materials to obtain the flame-retardant PET packing belt material.
10. The method for preparing a flame retardant PET strapping material according to claim 8, wherein the heating in the step (2) is a segmented temperature-controlled heating, and the segmented temperature is as follows: 180 plus or minus 20 ℃, 210 plus or minus 20 ℃, 240 plus or minus 20 ℃, 250 plus or minus 20 ℃, 255 plus or minus 20 ℃ and 245 plus or minus 20 ℃.
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| CN102002215A (en) * | 2010-10-25 | 2011-04-06 | 余姚市凡伟工程塑料有限公司 | Toughened PBT (Polybutylene Terephthalate) engineering plastic and preparation method thereof |
| CN102229738A (en) * | 2011-05-17 | 2011-11-02 | 威海联桥新材料科技股份有限公司 | High glow-wire flame retardant reinforced PET/PA (polyethylene terephthalate/polyamide) alloy material and production method thereof |
| CN106832806A (en) * | 2016-12-26 | 2017-06-13 | 东莞市佳乾新材料科技有限公司 | The PET material and preparation method of flame-retardant smoke inhibition |
| CN110016210A (en) * | 2019-04-17 | 2019-07-16 | 余姚中国塑料城塑料研究院 | A kind of Flame-retardant PET strap and preparation method thereof |
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2019
- 2019-12-26 CN CN201911368048.7A patent/CN111040391A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102002215A (en) * | 2010-10-25 | 2011-04-06 | 余姚市凡伟工程塑料有限公司 | Toughened PBT (Polybutylene Terephthalate) engineering plastic and preparation method thereof |
| CN102229738A (en) * | 2011-05-17 | 2011-11-02 | 威海联桥新材料科技股份有限公司 | High glow-wire flame retardant reinforced PET/PA (polyethylene terephthalate/polyamide) alloy material and production method thereof |
| CN106832806A (en) * | 2016-12-26 | 2017-06-13 | 东莞市佳乾新材料科技有限公司 | The PET material and preparation method of flame-retardant smoke inhibition |
| CN110016210A (en) * | 2019-04-17 | 2019-07-16 | 余姚中国塑料城塑料研究院 | A kind of Flame-retardant PET strap and preparation method thereof |
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Application publication date: 20200421 |