High-technological plastic for power strip tracks and method for its production
By forming an NP composite product in deionized water and preparing a second flame retardant, and combining potassium 3-benzenesulfonylbenzenesulfonate, polyvinyl butyral, and polycarbonate, the problems of high melt viscosity and insufficient flame retardant grade of PC plastic in power strip tracks are solved, and a high processability plastic that is easy to process and does not affect mechanical properties is prepared.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ZHONGSHAN ZHIQIAN MATERIAL TECH CO LTD
- Filing Date
- 2024-09-27
- Publication Date
- 2026-06-02
AI Technical Summary
Existing PC plastics used for socket rail housings have problems such as high melt viscosity, poor processing fluidity, and insufficient flame retardant rating. Furthermore, adding additional flame retardants can affect mechanical properties.
By adding 2,4,6-triaminopyrimidine and phytic acid to deionized water and carrying out a hydrothermal reaction to form an NP composite product, and reacting it with diphenyl chlorophosphate to prepare a second flame retardant, a plastic with low melt viscosity, easy processing and excellent flame retardant effect was prepared by combining potassium 3-benzenesulfonylbenzenesulfonate, polyvinyl butyral and polycarbonate.
It achieves a low melt viscosity, easy processing, and high processability plastic with excellent flame retardant properties, while not affecting the mechanical properties of polycarbonate, making it suitable for the power strip track field.
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Figure BDA0005064299390000111 
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Abstract
Description
Technical Field
[0001] This invention belongs to the field of plastics technology, specifically relating to a high-processability plastic for power strip tracks and its preparation method. Background Technology
[0002] Power strips, as a new type of power supply, are favored for their convenience, high mobility, and strong expandability. They mainly consist of a casing and conductive rails. Currently, the casing is mostly made of polycarbonate (PC), which has high mechanical strength and good high-temperature resistance, allowing it to be used for a long time in everyday environments without damage. However, existing PC plastics still have certain drawbacks that limit their application in casings. Firstly, PC plastics have high melt viscosity and poor processing fluidity, which can cause difficulties in subsequent extrusion and injection molding processes, making precision control difficult. Secondly, without the addition of any flame retardants, the flame retardancy rating of PC plastics can only reach UL-94V-2. To achieve better flame retardancy, many existing technologies add flame retardants to PC plastics. However, the addition of these flame retardants often comes at the cost of sacrificing some mechanical properties, thus seriously affecting subsequent use and reducing practicality. Summary of the Invention
[0003] To address the problems existing in the prior art, the purpose of this invention is to provide a highly processable plastic for power strip tracks and its preparation method. This invention creatively involves first adding 2,4,6-triaminopyrimidine and phytic acid to deionized water to form a hydrothermal reaction system. Through the interaction of the amino group of 2,4,6-triaminopyrimidine and the phosphorus hydroxyl group of phytic acid, an NP composite product is obtained. Then, a certain amount of diphenyl chlorophosphate is added to achieve deacidification and substitution of the remaining amino and phosphorus-chlorine bonds, thereby preparing a second flame retardant. This second flame retardant is then mixed with a first flame retardant / potassium 3-benzenesulfonylbenzenesulfonate, polyvinyl butyral, and polycarbonate in a certain mass ratio, and extruded and granulated to obtain a plastic. This plastic not only has relatively low viscosity, good fluidity, easy processing, and strong processability when melted, but also has excellent flame retardant effects without adversely affecting the mechanical properties of the polycarbonate itself, making it very suitable for use in the field of power strip tracks.
[0004] The objective of this invention can be achieved through the following technical solutions:
[0005] A high-processability plastic for power strip tracks, the high-processability plastic comprising the following components by weight percentage: 0.6% of a compounded flame retardant, 7-8% of polyvinyl butyral and the balance of polycarbonate; the compounded flame retardant comprising a first flame retardant and a second flame retardant; the first flame retardant being potassium 3-benzenesulfonylbenzenesulfonate.
[0006] As a preferred embodiment of the present invention, the mass ratio of the first flame retardant to the second flame retardant is 2:6-8.
[0007] As a preferred embodiment of the present invention, the second flame retardant is prepared by the following steps:
[0008] Step A: Add 2,4,6-triaminopyrimidine and phytic acid to deionized water, and then stir and mix at room temperature to obtain component A;
[0009] Step B: Perform a hydrothermal reaction on component A, cool naturally to room temperature, filter, collect the filter residue, wash with deionized water, and finally dry to obtain component B;
[0010] Step C: Add 30-35 parts by weight of dimethyl sulfoxide, 3-4 parts by weight of component B and 0.1-0.2 parts by weight of 4-dimethylaminopyridine to 100 parts by weight of acetonitrile, and then mix by stirring at room temperature for 10-15 minutes to obtain component C.
[0011] Step D: Add 8-9 parts by weight of diphenyl chlorophosphate to 100 parts by weight of acetonitrile, and then stir at room temperature for 20-30 minutes to obtain component D;
[0012] Step E: While stirring, add component D dropwise to component C at 0-5℃. After the addition is complete, continue stirring at a constant temperature for 1-2 hours. Throughout the process, maintain the pH at 8.5-9 by adding N,N-diisopropylethylamine to remove impurities. The preparation is then complete.
[0013] Further, in step A, the mass ratio of deionized water to 2,4,6-triaminopyrimidine is 100:5-7; and the molar ratio of 2,4,6-triaminopyrimidine to phytic acid is 8-9:1.
[0014] Furthermore, the stirring time in step A is 15-30 minutes.
[0015] Furthermore, the hydrothermal reaction described in step B refers to heating the reactor to 120-130°C at a heating rate of 3-5°C / min and then holding it at that temperature for 48-50 hours.
[0016] Furthermore, the drying described in step B refers to vacuum drying at 60-70°C until constant weight.
[0017] Furthermore, the dripping rate in step E is controlled at 1-2 drops / s.
[0018] Further, the impurity removal in step E refers to distillation at 35-40°C under a vacuum of -0.09 MPa until all volatiles are removed, then adding 100-150 parts by weight of deionized water and 8-10 parts by weight of anhydrous ethanol, stirring at room temperature for 15-30 minutes to mix, letting stand for 5-10 minutes, filtering, removing the filtrate, washing with deionized water, and finally vacuum drying at 50-60°C until constant weight.
[0019] As a preferred embodiment of the present invention, the polycarbonate is bisphenol A type polycarbonate.
[0020] A method for preparing a high-processability plastic for power strip tracks, the method comprising the following steps:
[0021] (1) Mix the compound flame retardant, polyvinyl butyral and polycarbonate, and then extrude and granulate them using a twin-screw extruder to complete the preparation.
[0022] Further, the operating parameters of the twin-screw extruder in step (1) are as follows: zone 1 temperature controlled at 230℃, zone 2 temperature controlled at 230℃, zone 3 temperature controlled at 235℃, zone 4 temperature controlled at 240℃, zone 5 temperature controlled at 245℃, zone 6 temperature controlled at 245℃, zone 7 temperature controlled at 240℃, zone 8 temperature controlled at 235℃, zone 9 temperature controlled at 230℃, and screw speed controlled at 300-500 rpm.
[0023] The beneficial effects of this invention are:
[0024] (1) This invention creatively first adds 2,4,6-triaminopyrimidine and phytic acid to deionized water to form a reaction system for hydrothermal reaction. Through the interaction of the amino group of 2,4,6-triaminopyrimidine and the phosphorus hydroxyl group of phytic acid, an NP composite product is obtained. Then, a certain amount of diphenyl chlorophosphate is added to achieve the deacidification and substitution of the remaining amino group and phosphorus chlorine bond, thereby preparing a second flame retardant. After mixing it with the first flame retardant / potassium 3-benzenesulfonylbenzenesulfonate, polyvinyl butyral and polycarbonate in a certain mass ratio, and extruding and granulating, a plastic is obtained. It not only has relatively low viscosity, good fluidity, easy processing and strong processability when melted, but also has excellent flame retardant effect and will not have an adverse effect on the mechanical properties of polycarbonate itself. It is very suitable for use in the field of power strip tracks.
[0025] (2) This invention creatively imparts superior processing performance and flame retardant effect to polycarbonate by adding a certain amount of a first flame retardant / potassium 3-benzenesulfonylbenzenesulfonate, a second flame retardant, and polyvinyl butyral, without adversely affecting its mechanical properties. Polyvinyl butyral, as a polyhydroxy polymer with good flexibility and excellent mechanical properties, can form a large number of hydrogen bonds with the carbonate groups of polycarbonate, achieving good compatibility without the need for compatibilizers, effectively reducing the viscosity during melting, improving processability, and facilitating dimensional accuracy control. Potassium 3-benzenesulfonylbenzenesulfonate, as a sulfonate flame retardant, is widely used in polycarbonate. However, for polycarbonate products with a thickness of less than 2.5 mm, the flame retardant ability is very limited. Based on this, the present invention creatively prepares a halogen-free second flame retardant with good char-forming ability and NP element composite by carrying out a hydrothermal reaction of 2,4,6-triaminopyrimidine / phytic acid-deacid substitution of diphenyl chlorophosphate. This allows the polycarbonate to be given excellent flame retardant effect by adding only a small amount of the first flame retardant. At the same time, the deacid substitution of diphenyl chlorophosphate forms more benzene ring structures, which also ensures its compatibility with polycarbonate to a certain extent, and ultimately does not adversely affect the mechanical properties of polycarbonate.
[0026] (3) The plastic prepared by the present invention has high processability and good flame retardant effect. In actual use, it can be injection molded or extruded as conventional PC plastic, which is very convenient. Detailed Implementation
[0027] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with embodiments, is provided below.
[0028] In all embodiments and comparative examples of this invention, the bisphenol A type polycarbonate was obtained directly from the market, purchased from Lotte Chemical, grade PC-1100; the polyvinyl butyral was obtained directly from the market, purchased from Shandong Kepler Biotechnology Co., Ltd., model kpl-56665.
[0029] Example 1
[0030] A high-processability plastic for power strip tracks, the high-processability plastic comprising, by weight percentage: 0.6% of a compound flame retardant, 7% of polyvinyl butyral and 92.4% of polycarbonate; the compound flame retardant comprising a first flame retardant and a second flame retardant; the first flame retardant being potassium 3-benzenesulfonylbenzenesulfonate.
[0031] The mass ratio of the first flame retardant to the second flame retardant is 2:6.
[0032] The second flame retardant is prepared by the following steps:
[0033] Step A: Add 2,4,6-triaminopyrimidine and phytic acid to deionized water, and then stir and mix at room temperature to obtain component A;
[0034] Step B: Perform a hydrothermal reaction on component A, cool naturally to room temperature, filter, collect the filter residue, wash with deionized water, and finally dry to obtain component B;
[0035] Step C: Add 30 parts by weight of dimethyl sulfoxide, 3 parts by weight of component B and 0.1 parts by weight of 4-dimethylaminopyridine to 100 parts by weight of acetonitrile, and then stir at room temperature for 10 minutes to obtain component C;
[0036] Step D: Add 8 parts by weight of diphenyl chlorophosphate to 100 parts by weight of acetonitrile, and then stir at room temperature for 20 minutes to obtain component D;
[0037] Step E: While stirring, add component D dropwise to component C at 0°C. After the addition is complete, continue stirring at a constant temperature for 1 hour. Throughout the process, maintain the pH at 8.5 by adding N,N-diisopropylethylamine to remove impurities. The preparation is then complete.
[0038] In step A, the mass ratio of deionized water to 2,4,6-triaminopyrimidine is 100:5; the molar ratio of 2,4,6-triaminopyrimidine to phytic acid is 8:1.
[0039] The stirring time in step A is 15 minutes.
[0040] The hydrothermal reaction described in step B refers to heating the reactor to 120°C at a heating rate of 3°C / min and then holding it at that temperature for 48 hours.
[0041] The drying described in step B refers to vacuum drying at 60°C until constant weight is achieved.
[0042] The dropping rate in step E is controlled at 1 drop / s.
[0043] The impurity removal in step E refers to distillation at 35°C under a vacuum of -0.09 MPa until all volatiles are removed, then 100 parts by weight of deionized water and 8 parts by weight of anhydrous ethanol are added, followed by stirring at room temperature for 15 minutes to mix, standing for 5 minutes, filtering, removing the filtrate, washing with deionized water, and finally vacuum drying at 50°C until constant weight.
[0044] The polycarbonate is bisphenol A type polycarbonate.
[0045] A method for preparing a high-processability plastic for power strip tracks, the method comprising the following steps:
[0046] (1) Mix the compound flame retardant, polyvinyl butyral and polycarbonate, and then extrude and granulate them using a twin-screw extruder to complete the preparation.
[0047] The operating parameters of the twin-screw extruder in step (1) are as follows: zone 1 temperature controlled at 230℃, zone 2 temperature controlled at 230℃, zone 3 temperature controlled at 235℃, zone 4 temperature controlled at 240℃, zone 5 temperature controlled at 245℃, zone 6 temperature controlled at 245℃, zone 7 temperature controlled at 240℃, zone 8 temperature controlled at 235℃, zone 9 temperature controlled at 230℃, and screw speed controlled at 300rpm.
[0048] Example 2
[0049] A high-processability plastic for power strip tracks, the high-processability plastic comprising, by weight percentage: 0.6% of a compound flame retardant, 8% of polyvinyl butyral and 91.4% of polycarbonate; the compound flame retardant comprising a first flame retardant and a second flame retardant; the first flame retardant being potassium 3-benzenesulfonylbenzenesulfonate.
[0050] The mass ratio of the first flame retardant to the second flame retardant is 2:8.
[0051] The second flame retardant is prepared by the following steps:
[0052] Step A: Add 2,4,6-triaminopyrimidine and phytic acid to deionized water, and then stir and mix at room temperature to obtain component A;
[0053] Step B: Perform a hydrothermal reaction on component A, cool naturally to room temperature, filter, collect the filter residue, wash with deionized water, and finally dry to obtain component B;
[0054] Step C: Add 35 parts by weight of dimethyl sulfoxide, 4 parts by weight of component B and 0.2 parts by weight of 4-dimethylaminopyridine to 100 parts by weight of acetonitrile, and then stir at room temperature for 15 minutes to obtain component C;
[0055] Step D: Add 9 parts by weight of diphenyl chlorophosphate to 100 parts by weight of acetonitrile, and then stir at room temperature for 30 minutes to obtain component D;
[0056] Step E: While stirring, add component D dropwise to component C at 5°C. After the addition is complete, continue stirring at a constant temperature for 2 hours. Throughout the process, maintain the pH at 9 by adding N,N-diisopropylethylamine to remove impurities, and the preparation is complete.
[0057] In step A, the mass ratio of deionized water to 2,4,6-triaminopyrimidine is 100:7; the molar ratio of 2,4,6-triaminopyrimidine to phytic acid is 9:1.
[0058] The stirring time in step A is 30 minutes.
[0059] The hydrothermal reaction described in step B refers to heating the reactor to 130°C at a heating rate of 5°C / min and then holding it at that temperature for 50 hours.
[0060] The drying described in step B refers to vacuum drying at 70°C until constant weight is achieved.
[0061] The dropping rate in step E is controlled at 2 drops / s.
[0062] The impurity removal in step E refers to distillation at 40°C under a vacuum of -0.09 MPa until all volatiles are removed, then 150 parts by weight of deionized water and 10 parts by weight of anhydrous ethanol are added, followed by stirring at room temperature for 30 minutes to mix, standing for 10 minutes, filtering, removing the filtrate, washing with deionized water, and finally vacuum drying at 60°C until constant weight.
[0063] The polycarbonate is bisphenol A type polycarbonate.
[0064] A method for preparing a high-processability plastic for power strip tracks, the method comprising the following steps:
[0065] (1) Mix the compound flame retardant, polyvinyl butyral and polycarbonate, and then extrude and granulate them using a twin-screw extruder to complete the preparation.
[0066] The operating parameters of the twin-screw extruder in step (1) are as follows: zone 1 temperature controlled at 230℃, zone 2 temperature controlled at 230℃, zone 3 temperature controlled at 235℃, zone 4 temperature controlled at 240℃, zone 5 temperature controlled at 245℃, zone 6 temperature controlled at 245℃, zone 7 temperature controlled at 240℃, zone 8 temperature controlled at 235℃, zone 9 temperature controlled at 230℃, and screw speed controlled at 500 rpm.
[0067] Example 3
[0068] A high-processability plastic for power strip tracks, the high-processability plastic comprising, by weight percentage: 0.6% of a compound flame retardant, 7.5% of polyvinyl butyral and 91.9% of polycarbonate; the compound flame retardant comprising a first flame retardant and a second flame retardant; the first flame retardant being potassium 3-benzenesulfonylbenzenesulfonate.
[0069] The mass ratio of the first flame retardant to the second flame retardant is 2:7.
[0070] The second flame retardant is prepared by the following steps:
[0071] Step A: Add 2,4,6-triaminopyrimidine and phytic acid to deionized water, and then stir and mix at room temperature to obtain component A;
[0072] Step B: Perform a hydrothermal reaction on component A, cool naturally to room temperature, filter, collect the filter residue, wash with deionized water, and finally dry to obtain component B;
[0073] Step C: Add 33 parts by weight of dimethyl sulfoxide, 3.5 parts by weight of component B and 0.15 parts by weight of 4-dimethylaminopyridine to 100 parts by weight of acetonitrile, and then stir at room temperature for 13 minutes to mix and obtain component C;
[0074] Step D: Add 8.5 parts by weight of diphenyl chlorophosphate to 100 parts by weight of acetonitrile, and then stir at room temperature for 25 minutes to obtain component D;
[0075] Step E: While stirring, add component D dropwise to component C at 3°C. After the addition is complete, continue stirring at a constant temperature for 1.5 hours. Throughout the process, the pH is maintained at 8.7 by adding N,N-diisopropylethylamine to remove impurities, and the preparation is complete.
[0076] In step A, the mass ratio of deionized water to 2,4,6-triaminopyrimidine is 100:6; the molar ratio of 2,4,6-triaminopyrimidine to phytic acid is 8.5:1.
[0077] The stirring time in step A is 20 minutes.
[0078] The hydrothermal reaction described in step B refers to heating the reactor to 125°C at a heating rate of 4°C / min and then holding it at that temperature for 49 hours.
[0079] The drying described in step B refers to vacuum drying at 65°C until constant weight.
[0080] The dripping rate in step E is controlled at 1.5 drops / s.
[0081] The impurity removal in step E refers to distillation at 38°C under a vacuum of -0.09 MPa until all volatiles are removed, then 130 parts by weight of deionized water and 9 parts by weight of anhydrous ethanol are added, followed by stirring at room temperature for 25 minutes to mix, standing for 8 minutes, filtering, removing the filtrate, washing with deionized water, and finally vacuum drying at 55°C until constant weight.
[0082] The polycarbonate is bisphenol A type polycarbonate.
[0083] A method for preparing a high-processability plastic for power strip tracks, the method comprising the following steps:
[0084] (1) Mix the compound flame retardant, polyvinyl butyral and polycarbonate, and then extrude and granulate them using a twin-screw extruder to complete the preparation.
[0085] The operating parameters of the twin-screw extruder in step (1) are as follows: zone 1 temperature controlled at 230℃, zone 2 temperature controlled at 230℃, zone 3 temperature controlled at 235℃, zone 4 temperature controlled at 240℃, zone 5 temperature controlled at 245℃, zone 6 temperature controlled at 245℃, zone 7 temperature controlled at 240℃, zone 8 temperature controlled at 235℃, zone 9 temperature controlled at 230℃, and screw speed controlled at 400rpm.
[0086] Comparative Example 1
[0087] Based on Example 1, polyvinyl butyral was replaced with an equal weight of polycarbonate, while all other components remained unchanged.
[0088] Comparative Example 2
[0089] Based on Example 1, the first flame retardant was replaced with an equal weight of the second flame retardant, while all other aspects remained unchanged.
[0090] Comparative Example 3
[0091] Based on Example 1, the second flame retardant was replaced with an equal weight of the first flame retardant, while all other aspects remained unchanged.
[0092] Comparative Example 4
[0093] Based on Example 1, steps C, D, and E are omitted, while the rest remain unchanged.
[0094] Comparative Example 5
[0095] Based on Example 1, the compound flame retardant and polyvinyl butyral were replaced with equal weights of polycarbonate, while the rest remained unchanged.
[0096] Test Example 1
[0097] MFR test:
[0098] The high processability plastics prepared in Examples 1-3 and Comparative Examples 1-5 were subjected to MFR testing according to standard GB / T3682-2000.
[0099] Table 1. MFR Test Results
[0100] MFR / g / 10min Example 1 6.98 Example 2 6.53 Example 3 6.62 Comparative Example 1 4.31 Comparative Example 2 6.95 Comparative Example 3 6.92 Comparative Example 4 6.97 Comparative Example 5 4.34
[0101] Test Example 2
[0102] Flame retardant performance test:
[0103] The high processability plastics prepared in Examples 1-3 and Comparative Examples 1-5 were injection molded using an injection molding machine to obtain various test samples, which were then subjected to UL-94 vertical burning tests. The injection temperature of the injection molding machine was 250°C, and the size of the test samples was 130mm×13mm×2mm.
[0104] Table 2. Flame retardant performance test results
[0105] grade Example 1 V-0 Example 2 V-0 Example 3 V-0 Comparative Example 1 V-0 Comparative Example 2 V-1 Comparative Example 3 V-1 Comparative Example 4 V-1 Comparative Example 5 V-2
[0106] Test Example 3
[0107] Mechanical property testing:
[0108] The high processability plastics prepared in Examples 1-3 and Comparative Examples 1-5 were injection molded using an injection molding machine to obtain various test samples. Then, mechanical properties were tested using an electronic universal testing machine to obtain tensile strength and elongation at break. The injection temperature of the injection molding machine was 250℃, the tensile speed during the test was 5mm / min, and the size of the test sample was 50mm×5mm×0.5mm.
[0109] Table 3. Mechanical property test results
[0110]
[0111]
[0112] As can be seen from the comparison between Test Examples 1-3, Example 1 and Comparative Examples 1-5, the high processability plastic prepared by the present invention not only has good processing performance, but also has excellent flame retardant effect. At the same time, its mechanical properties are basically not significantly different from those of pure PC plastic, and will not have any adverse effects.
[0113] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.
Claims
1. A high-processability plastic for power strip tracks, characterized in that: The high-processability plastic comprises the following components by weight percentage: 0.6% of a compound flame retardant, 7-8% of polyvinyl butyral and the balance of polycarbonate; the compound flame retardant comprises a first flame retardant and a second flame retardant; the first flame retardant is potassium 3-benzenesulfonylbenzenesulfonate. The second flame retardant is prepared by the following steps: Step A: Add 2,4,6-triaminopyrimidine and phytic acid to deionized water, and then stir and mix at room temperature to obtain component A; Step B: Perform a hydrothermal reaction on component A, cool naturally to room temperature, filter, collect the filter residue, wash with deionized water, and finally dry to obtain component B; Step C: Add 30-35 parts by weight of dimethyl sulfoxide, 3-4 parts by weight of component B and 0.1-0.2 parts by weight of 4-dimethylaminopyridine to 100 parts by weight of acetonitrile, and then mix by stirring at room temperature for 10-15 minutes to obtain component C. Step D: Add 8-9 parts by weight of diphenyl chlorophosphate to 100 parts by weight of acetonitrile, and then stir at room temperature for 20-30 minutes to obtain component D; Step E: While stirring, add component D dropwise to component C at 0-5℃. After the addition is complete, continue stirring at a constant temperature for 1-2 hours. Throughout the process, the pH is maintained at 8.5-9 by adding N,N-diisopropylethylamine to remove impurities, and the preparation is complete.
2. The high-processability plastic for power strip tracks according to claim 1, characterized in that: The mass ratio of the first flame retardant to the second flame retardant is 2:6-8.
3. The high-processability plastic for power strip tracks according to claim 1, characterized in that: In step A, the mass ratio of deionized water to 2,4,6-triaminopyrimidine is 100:5-7; the molar ratio of 2,4,6-triaminopyrimidine to phytic acid is 8-9:
1.
4. The high-processability plastic for power strip tracks according to claim 1, characterized in that: The hydrothermal reaction described in step B refers to heating the reactor to 120-130°C at a heating rate of 3-5°C / min and then holding it at that temperature for 48-50 hours.
5. A high-processability plastic for power strip tracks according to claim 1, characterized in that: The drying described in step B refers to vacuum drying at 60-70°C until constant weight is achieved.
6. The high-processability plastic for power strip tracks according to claim 1, characterized in that: The dripping rate in step E is controlled at 1-2 drops / s.
7. A high-processability plastic for power strip tracks according to claim 1, characterized in that: The impurity removal in step E refers to distillation at 35-40°C under a vacuum of -0.09 MPa until all volatiles are removed, followed by the addition of 100-150 parts by weight of deionized water and 8-10 parts by weight of anhydrous ethanol. The mixture is then stirred at room temperature for 15-30 minutes, allowed to stand for 5-10 minutes, filtered, and the filtrate is removed. The mixture is then washed with deionized water and finally dried under vacuum at 50-60°C until constant weight is achieved.
8. A high-processability plastic for power strip tracks according to claim 1, characterized in that: The polycarbonate is bisphenol A type polycarbonate.
9. A method for preparing a high-processability plastic for power strip tracks as described in any one of claims 1-8, characterized in that: The preparation method includes the following steps: (1) Mix the compound flame retardant, polyvinyl butyral and polycarbonate, and then extrude and granulate them using a twin-screw extruder to complete the preparation.