CN112679935A - Highlight extrusion halogen-free flame-retardant PC/ABS alloy material, preparation method thereof and obtained product - Google Patents
Highlight extrusion halogen-free flame-retardant PC/ABS alloy material, preparation method thereof and obtained product Download PDFInfo
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 61
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 239000000956 alloy Substances 0.000 title claims abstract description 34
- 229920007019 PC/ABS Polymers 0.000 title claims abstract description 25
- 238000001125 extrusion Methods 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title claims abstract description 7
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- 239000003963 antioxidant agent Substances 0.000 claims abstract description 16
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- 229920000515 polycarbonate Polymers 0.000 claims abstract description 13
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 12
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 9
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- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims description 17
- 238000002156 mixing Methods 0.000 claims description 12
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 8
- 238000005452 bending Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 238000005469 granulation Methods 0.000 claims description 5
- 230000003179 granulation Effects 0.000 claims description 5
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 4
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 4
- 239000000194 fatty acid Substances 0.000 claims description 4
- 229930195729 fatty acid Natural products 0.000 claims description 4
- 150000004665 fatty acids Chemical class 0.000 claims description 4
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 4
- UQSHIDHNLKIYGN-UHFFFAOYSA-N diphenoxyphosphoryl diphenyl phosphate Chemical group C=1C=CC=CC=1OP(OP(=O)(OC=1C=CC=CC=1)OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 UQSHIDHNLKIYGN-UHFFFAOYSA-N 0.000 claims description 3
- 229910019142 PO4 Inorganic materials 0.000 claims description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 2
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 2
- 150000004982 aromatic amines Chemical class 0.000 claims description 2
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 2
- 150000002148 esters Chemical class 0.000 claims description 2
- 229920006225 ethylene-methyl acrylate Polymers 0.000 claims description 2
- 229930195733 hydrocarbon Natural products 0.000 claims description 2
- 150000002430 hydrocarbons Chemical class 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- GKTNLYAAZKKMTQ-UHFFFAOYSA-N n-[bis(dimethylamino)phosphinimyl]-n-methylmethanamine Chemical compound CN(C)P(=N)(N(C)C)N(C)C GKTNLYAAZKKMTQ-UHFFFAOYSA-N 0.000 claims description 2
- 150000003961 organosilicon compounds Chemical class 0.000 claims description 2
- 238000005453 pelletization Methods 0.000 claims description 2
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- 229920005604 random copolymer Polymers 0.000 claims description 2
- 239000000344 soap Substances 0.000 claims description 2
- XZZNDPSIHUTMOC-UHFFFAOYSA-N triphenyl phosphate Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 XZZNDPSIHUTMOC-UHFFFAOYSA-N 0.000 claims description 2
- 239000010456 wollastonite Substances 0.000 claims description 2
- 229910052882 wollastonite Inorganic materials 0.000 claims description 2
- DXZMANYCMVCPIM-UHFFFAOYSA-L zinc;diethylphosphinate Chemical compound [Zn+2].CCP([O-])(=O)CC.CCP([O-])(=O)CC DXZMANYCMVCPIM-UHFFFAOYSA-L 0.000 claims 7
- 239000002861 polymer material Substances 0.000 abstract description 2
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- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 15
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 14
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 14
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- 125000001931 aliphatic group Chemical group 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
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- 125000005587 carbonate group Chemical group 0.000 description 1
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- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides a high-gloss extrusion halogen-free flame-retardant PC/ABS alloy material, a preparation method thereof and an obtained product, and belongs to the technical field of high polymer materials. The highlight extrusion halogen-free flame-retardant PC/ABS alloy material comprises the following components in percentage by weight: 70-83% of polycarbonate, 5-20% of ABS, 8-15% of flame retardant, 2-5% of interface toughening compatilizer, 0.1-0.5% of PTFE anti-dripping agent, 1-10% of flame retardant synergist, 0.1-0.5% of lubricant and 0.1-0.5% of antioxidant. The alloy material has good mechanical property, impact strength, saturation degree and good luster and flame retardant property, and a product prepared by the alloy material is full and uniform in thickness, can be effectively used for preparing outdoor power grid line slots, and has wide market prospect.
Description
Technical Field
The invention belongs to the technical field of high polymer materials, and particularly relates to a highlight extrusion halogen-free flame-retardant PC/ABS alloy material, a preparation method thereof and an obtained product.
Background
Polycarbonates (PC for short) are high molecular polymers containing carbonate groups in the molecular chain, and are classified into various types, such as aliphatic, aromatic, aliphatic-aromatic, and the like, depending on the structure of the ester group. ABS resin is a terpolymer (acrylonitrile-butadiene-styrene) developed on the basis of modification of Polystyrene (PS) resin, and is a thermoplastic resin which is between engineering plastics and general plastics, has good comprehensive performance and is easy to process and mold. The PC/ABS alloy has the advantages of no toxicity, no odor, reproducibility, excellent comprehensive performance and the like. With the development of technology, the market puts more demands on the used materials, such as high gloss, extruded sheets and the like; however, no corresponding product is reported in the market at present.
Disclosure of Invention
The invention provides a high-gloss extrusion halogen-free flame-retardant PC/ABS alloy material, a preparation method thereof and an obtained product, wherein the alloy material has good mechanical property, impact strength, saturation and gloss and flame-retardant property, and a product prepared from the alloy material is full and uniform in thickness, can be effectively used for preparing outdoor power grid wire slots, and has wide market prospect.
In order to achieve the aim, the invention provides a high-gloss extrusion halogen-free flame-retardant PC/ABS alloy material which comprises the following components in percentage by weight:
70-83% of polycarbonate, 5-20% of ABS, 8-15% of flame retardant, 2-5% of interface toughening compatilizer, 0.1-0.5% of PTFE anti-dripping agent, 1-10% of flame retardant synergist, 0.1-0.5% of lubricant and 0.1-0.5% of antioxidant.
It is understood that the weight percentage of each component can be adjusted within the above range by one skilled in the art according to actual conditions, for example, the polycarbonate can be 71, 72, 73, 74, 74.5, 74.7, 75, 76, 77, 77.2, 77.7, 78, 79.5, 79.7, 80, 80.2, 80.5, 81, 82, 83% or any value within the above range, the ABS can be 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19% or any value within the above range, the flame retardant can be 9, 10, 11, 12, 13, 14% or any value within the above range, the interfacial toughening compatibilizer can be 2.5, 3, 3.5, 4, 4.5% or any value within the above range, the PTFE anti-drip agent can be 0.2, 0.3, 0.4% or any value within the above range, and the flame retardant synergist can be 2, 3, 4, 5, 6, 7, 4, 4.5, 4% or any value within the above range, 8. 9% or any value within the above range, the lubricant may also be 0.2, 0.3, 0.4% or any value within the above range, and the antioxidant may also be 0.2, 0.3, 0.4% or any value within the above range.
Preferably, the polycarbonate adopts polycarbonates with different viscosities, and is selected from at least one of Qimei PC-110, PC-122 and PC-115; the ABS is selected from at least one of Qimei PA-1730, PA-757K and PA-749K. It is understood that the polycarbonate employed may be a polycarbonate of varying viscosity, for example, a higher viscosity for PC-110 melt index of 10 and a lower viscosity for PC-122 melt index of 22. Of course, the ABS may also be ABS obtained by different polymerization processes, for example bulk polymerization, emulsion polymerization.
Preferably, the flame retardant is selected from tetraphenyl diphosphate and/or triphenyl phosphate phosphazene; the plasticizing flame-retardant synergist is selected from at least one of talcum powder, wollastonite and barium sulfate. It is understood that the flame retardant is the main flame retardant component; the plastic-increasing flame-retardant synergist has an auxiliary effect on flame retardance, and the flame-retardant effect cannot be achieved by single use.
Preferably, the interfacial toughening compatibilizer is at least one selected from maleic anhydride grafted styrene, random copolymers of styrene and maleic anhydride, ethylene-methyl acrylate copolymers, and silane coupling agents.
Preferably, the lubricant is at least one selected from the group consisting of fatty acids and esters thereof, fatty acid amides, metal soaps, hydrocarbons, organosilicon compounds, and phosphates. It will be appreciated that the lubricant selected may be specifically selected from the american dragon PETS.
Preferably, the antioxidant is at least one selected from aromatic amine antioxidants and hindered phenol antioxidants.
The invention provides a preparation method of a high-gloss extrusion halogen-free flame-retardant PC/ABS alloy material according to any one of the technical schemes, which comprises the following steps:
adding polycarbonate and ABS into a mixer, mixing at low speed for 3-5min, primarily mixing, adding flame retardant, interface toughening compatibilizer, flame retardant synergist, PTFE anti-dripping agent, lubricant and antioxidant into the mixer, and mixing at high speed for 2-3min to obtain a mixture;
and adding the obtained mixture into a co-rotating double-screw extruder for extrusion granulation, cooling, and pelletizing to obtain the product.
Preferably, the low speed is 450-550 r/min, the high speed is 2800-3500 r/min, the rotating speed of the co-rotating twin-screw extruder is 300-400r/min, and the temperature is 240-265 ℃. It will be appreciated that the parameters may be adjusted by one skilled in the art within the above ranges, for example, the low speed may be 460, 470, 480, 490, 500, 510, 520, 530, 540 rpm or any point value within the above ranges, and the high speed may be 2900, 3000, 3100, 3200, 3300, 3400 rpm or any point value within the above ranges; the co-rotating twin screw extruder may also have a speed of 310, 320, 330, 340, 350, 360, 370, 380, 390r/min or any value within the above range and a temperature of 245, 250, 255, 260 ℃ or any value within the above range.
The invention provides a power grid wire slot prepared from the highlight extrusion halogen-free flame-retardant PC/ABS alloy material according to any one of the technical schemes. It can be understood that the alloy material provided by the invention has the notch impact strength of more than 50KJ/m2Tensile strength > 60MPa, bending strength > 80MPa, heat distortion temperature > 90, flame retardance 1.6mmV0 and glossiness>80%, its wholeness can satisfy the operation requirement of outdoor network wire casing to make up the not enough of prior art.
Compared with the prior art, the invention has the advantages and positive effects that:
the highlight extrusion halogen-free flame-retardant PC/ABS alloy material provided by the invention has the advantages of good mechanical property, impact strength and saturation, simple production process and rich raw material sources. Meanwhile, the highlight extrusion halogen-free flame-retardant PC/ABS alloy material also has higher gloss, the processing performance of the alloy material is effectively improved, and in addition, the alloy material ensures that a product with the flame retardant grade of 1.6mm V0 is full and uniform in thickness. The outdoor power grid wire casing prepared by the alloy material has the advantages that the overall performance is effectively improved, and the market prospect is wide.
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.
The test standards and test processing methods used in the following examples of the invention are as follows:
the material tensile spline size is implemented according to the GB/T1040 standard, and the measured spline size is as follows: the test piece is dumbbell-shaped, the total length is 154mm, the effective test data part is 80mm long, the width is 10mm, and the thickness is 4 mm. The specific test method comprises the following steps: the test method of tensile strength and elongation at break is executed according to GB/T1040 standard, the tensile speed is 50mm/min, and the gauge length is 50 mm. Under the environment of 23 ℃ and 50% humidity, 48-small test condition regulation is carried out according to GB/T2918.
The bending spline dimension and the test method are executed according to the GB/T9431 standard, and the measured spline test part dimension is as follows: the length is 80mm, the width is 10mm, and the thickness is 4 mm. The specific test method adopts the span of 64mm and the pressing speed of 2 mm/min. Under the environment of 23 ℃ and 50% humidity, 48-small test condition regulation is carried out according to GB/T2918.
The notch impact strength test sample strip size and the method are executed according to the GB/T1843 standard, and the actually measured sample strip size is as follows: 80mm long, 10mm wide, 4mm thickness, A type breach, breach depth 2mm, test pendulum is 5.5J. Under the environment of 23 ℃ and 50% humidity, 48-small test condition regulation is carried out according to GB/T2918.
The flame retardant test specimens were performed according to the UL94 standard with the measured specimen dimensions: the length is 124mm, the width is 12.7mm, and the thickness is 1.6 mm. The conditioning was carried out in 48-bench condition at a temperature of 23 ℃ and a humidity of 50%.
Examples 1 to 11
The applicant firstly optimizes the components and the proportion for preparing the high-gloss extrusion halogen-free flame-retardant PC/ABS alloy material, and the following examples show the optimization process and the proportion scheme of the components in the screening process, which are intended to prove the effect of the invention and have no limiting effect.
TABLE 1 examples 1-11 materials compositions and compounding ratios
TABLE 1 (continuation)
According to the components and the mixture ratio in the table 1, the materials are prepared according to the following method:
1) adding PC and ABS into a high-speed stirrer, mixing for 3min, sequentially adding a flame retardant, an interface toughening compatilizer, a PTFE anti-dripping agent, a lubricant and an antioxidant, and mixing for 5 min;
2) adding the mixture obtained in the step 2) into a co-rotating double-screw extruder for extrusion granulation, wherein the feeding speed is 300kg/H, the rotating speed is 300-400r/min, the temperature is 240-265 ℃, and then, cooling by a water tank and granulating to prepare plastic particles.
The prepared material is subjected to index detection of tensile strength, bending strength, impact strength, flame retardance and the like according to the corresponding standards, and the test results are shown in table 2.
Table 2 material property testing data
Table 2 (continuation)
Adding the plastic particles prepared in the step 2) into an extruder to extrude into sheets, then using a plastic sucking machine to prepare products, and testing the glossiness of the products according to the standard, wherein the test data is shown in table 3.
Table 3 article property testing data
| Material properties | Unit of | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Example 6 |
| Degree of gloss | ％ | 55 | 65 | 68 | 52 | 88 | 90 |
Table 3 (continuation)
| Material properties | Unit of | Example 7 | Example 8 | Example 9 | Example 10 | Example 11 |
| Degree of gloss | ％ | 92 | 94 | 95 | 94 | 78 |
In the above examples, examples 1 to 4 were screens of raw material grades, examples 5 to 9 were screens of raw material proportions, and examples 7, 10 and 11 were comparisons of auxiliaries.
In examples 1-4, the influence of the PC and ABS designations on the product performance was examined under the condition that the other components and the amounts were not changed, and based on the material performance data in table 2 and the product performance data in table 3, it can be seen that the product performance was superior when the PC and ABS designations were PC (PC-110) and ABS (PA-749K), respectively, and therefore, the two designations were selected for the subsequent tests.
Under the condition that the grades of PC and ABS are determined, the raw material proportions are screened in examples 5-9, namely the dosage range of PC is screened from the aspects of high and low dosages outside the range and the dosage within the range, and based on the material performance data in Table 2 and the product performance data in Table 3, the glossiness of example 5 is unqualified, the impact strength of example 9 is unqualified, the thermal deformation of example 10 is unqualified, the glossiness of example 11 is unqualified, and the content of PC is only in the range of 70-83%, so that the product performance is better. Further, examples 7, 10 and 11 compare the addition of additives (antioxidant and lubricant) and limit the amount of additives.
Examples 12 to 17
Based on the above tests and analysis, the applicant further conducted tests, as described in examples 12-17, with specific formulations and components as shown in table 4, considering that the flame retardant synergist is also important for improving the flame retardancy and rigidity of the PC/ABS alloy.
TABLE 4 examples 12-17 compositions and formulations
The materials were prepared according to the formulation of table 4 as follows:
1) adding PC and ABS into a high-speed stirrer, mixing for 3min, sequentially adding flame retardant, interface toughening compatilizer, flame retardant synergist, PTFE anti-dripping agent, lubricant and antioxidant, and mixing for 5 min;
2) adding the mixture obtained in the step 2) into a co-rotating double-screw extruder for extrusion granulation, wherein the feeding speed is 300kg/H, the rotating speed is 300-400r/min, the temperature is 240-265 ℃, and then, cooling by a water tank and granulating to prepare plastic particles.
The prepared material was tested for tensile strength, flexural strength, impact strength, flame retardancy, etc. according to the corresponding standards, and the test results are shown in table 5.
Table 5 examples 12-17 materials testing data
Adding the plastic particles obtained in the step 2) into an extruder to extrude into sheets to prepare products, wherein the product test data are shown in table 6.
Table 6 article property testing data
The above examples 12-17 were screened for the type and amount of flame retardant and flame retardant synergist, respectively, wherein examples 12-15 were compared for the amount of flame retardant, examples 15-16 were compared for the type of flame retardant, and examples 15 and 17 were compared for the flame retardant synergist. Based on the above index analysis, examples 12 to 14 failed in stretching, example 16 failed in stretching and bending strength, example 17 failed in stretching and bending strength and failed in thermal deformation, and example 15 satisfied the requirements. Therefore, the flame retardant is tetraphenyl diphosphate and the flame retardant synergist is talc.
Based on the above analysis of the raw materials and ratios, the following examples 18-21 were tested for specific formulations and components, as shown in Table 7.
TABLE 7 examples 18-21 compositions and formulations
The materials were prepared according to the formulation of table 7 as follows:
1) adding PC and ABS into a high-speed stirrer, mixing for 3min, sequentially adding flame retardant, interface toughening compatilizer, flame retardant synergist, PTFE anti-dripping agent, lubricant and antioxidant, and mixing for 5 min;
2) adding the mixture obtained in the step 2) into a co-rotating double-screw extruder for extrusion granulation, wherein the feeding speed is 300kg/H, the rotating speed is 300-400r/min, the temperature is 240-265 ℃, and then, cooling by a water tank and granulating to prepare plastic particles.
The prepared material was tested for tensile strength, flexural strength, impact strength, flame retardancy, etc. according to the corresponding standards, and the test results are shown in table 5.
Table 8 examples 18-21 materials testing data
Adding the plastic particles obtained in the step 2) into an extruder to extrude into sheets to prepare products, wherein the product test data are shown in table 9.
Table 9 article property testing data
| Material properties | Unit of | Example 18 | Example 19 | Example 20 | Example 21 |
| Degree of gloss | ％ | 86 | 87 | 89 | 90 |
Based on the data, the melting index of the formula of the flame-retardant blister PC/ABS alloy material is more than 40g/10min, and the notch impact strength is more than 50KJ/m2Tensile strength > 60MPa, bending strength > 80MPa, heat distortion temperature > 90, flame retardance 1.6mmV0, and gloss>80%, the overall performance satisfies outdoor electric wire netting wire casing and uses the requirement, makes up the not enough of prior art. Therefore, the highlight extrusion flame-retardant PC/ABS alloy material has the advantages of good mechanical property, impact strength and saturation, simple production process, rich raw material sources, wide application in outdoor network cable troughs and wide market prospect.
Claims (10)
1. The highlight extrusion halogen-free flame-retardant PC/ABS alloy material is characterized by comprising the following components in percentage by weight:
70-83% of polycarbonate, 5-20% of ABS, 8-15% of flame retardant, 2-5% of interface toughening compatilizer, 0.1-0.5% of PTFE anti-dripping agent, 1-10% of flame retardant synergist, 0.1-0.5% of lubricant and 0.1-0.5% of antioxidant.
2. The high gloss extruded halogen-free flame retardant PC/ABS alloy material according to claim 1, wherein the polycarbonate is polycarbonate with different viscosity, and is selected from at least one of Qimei PC-110, PC-122 and PC-115; the ABS is selected from at least one of Qimei PA-1730, PA-757K and PA-749K.
3. The high gloss extrusion halogen-free flame retardant PC/ABS alloy material according to claim 1, wherein the flame retardant is selected from tetraphenyl diphosphate and/or triphenyl phosphate phosphazene; the plasticizing flame-retardant synergist is selected from at least one of talcum powder, wollastonite and barium sulfate.
4. The high gloss extruded halogen-free flame retardant PC/ABS alloy material of claim 1, wherein the interfacial toughening compatibilizer is at least one selected from maleic anhydride grafted styrene, random copolymers of styrene and maleic anhydride, ethylene-methyl acrylate copolymers, and silane coupling agents.
5. The high gloss extruded halogen free flame retardant PC/ABS alloy material according to claim 1, wherein the lubricant is selected from at least one of fatty acid and its esters, fatty acid amide, metal soap, hydrocarbons, organosilicon compounds and phosphates.
6. The high gloss extruded halogen-free flame retardant PC/ABS alloy material of claim 1, wherein the antioxidant is at least one selected from aromatic amine antioxidants and hindered phenol antioxidants.
7. The high gloss extruded halogen-free flame retardant PC/ABS alloy material according to claim 1, wherein the notched impact strength of the alloy material is > 50KJ/m2Tensile strength > 60MPa, bending strength > 80MPa, heat distortion temperatureDegree is more than 90, flame retardant is 1.6mmV0 and glossiness>80％。
8. The preparation method of the high-gloss extruded halogen-free flame retardant PC/ABS alloy material according to any one of claims 1-7, characterized by comprising the following steps:
adding polycarbonate and ABS into a mixer, mixing at low speed for 3-5min, primarily mixing, adding flame retardant, interface toughening compatibilizer, flame retardant synergist, PTFE anti-dripping agent, lubricant and antioxidant into the mixer, and mixing at high speed for 2-3min to obtain a mixture;
and adding the obtained mixture into a co-rotating double-screw extruder for extrusion granulation, cooling, and pelletizing to obtain the product.
9. The method as claimed in claim 8, wherein the low speed is 450-.
10. The wire casing for power grid prepared from the high-gloss extruded halogen-free flame-retardant PC/ABS alloy material according to any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011566456.6A CN112679935A (en) | 2020-12-25 | 2020-12-25 | Highlight extrusion halogen-free flame-retardant PC/ABS alloy material, preparation method thereof and obtained product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011566456.6A CN112679935A (en) | 2020-12-25 | 2020-12-25 | Highlight extrusion halogen-free flame-retardant PC/ABS alloy material, preparation method thereof and obtained product |
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Application publication date: 20210420 |