CN101407621A - Flame-retardant PBT / PC plastic alloy and manufacturing method thereof - Google Patents
Flame-retardant PBT / PC plastic alloy and manufacturing method thereof Download PDFInfo
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- CN101407621A CN101407621A CNA2008102194453A CN200810219445A CN101407621A CN 101407621 A CN101407621 A CN 101407621A CN A2008102194453 A CNA2008102194453 A CN A2008102194453A CN 200810219445 A CN200810219445 A CN 200810219445A CN 101407621 A CN101407621 A CN 101407621A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
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Abstract
The invention relates to a flame-retardant PBT/PC plastic alloy and a preparation method thereof. The material components of the flame-retardant PBT/PC plastic alloy comprise main materials and auxiliary materials; wherein, the main materials are polybutylene terephthalate and polycarbonate and the auxiliary materials comprise a compatilizer, a composite flame retardant agent and an antioxidant agent. The plastic alloy is characterized in that the auxiliary materials also comprise a lubricating agent, wherein, the parts by weight of all the components are as follows in sequence: (1) the main material: 30.1 parts to 55 parts of polybutylene terephthalate; 2) 20 parts to 40 parts of polycarbonate; and (2) auxiliary materials: 1) 5 parts to 15 parts of compatilizer; 2) composite flame retardant agent: 8 parts to 16 parts of tetrabromobisphemol A polycarbonate oligomer and 1.5 parts to 6 parts of diantimony trioxide; 3) 0.2 part to 0.4 part of antioxidant agent; and 4) o.2 part to 0.6 part of lubricating agent. The invention has the characteristics of high-effective compatibility, good impact toughness, high-effective flame retardance, high degree of environment protection, excellent processing performance and low cost of materials.
Description
Technical field
The present invention relates to a kind of flame-retardant PBT/PC polyblend and preparation method thereof.
Background technology
Polybutylene terephthalate Polybutylene TerephthalateS is called for short PBT, is one of the most tough and tensile engineering thermoplastic materials, is the fast engineering plastics of a kind of crystallization velocity, is easy to realize high-speed molding.It has very outstanding chemical reagent resistance, thermotolerance and good physical strength, electrical insulation characteristics and thermostability.But it also exists molding shrinkage big, and notched Izod impact strength is low, shortcoming such as rigidity deficiency under the high temperature.
Polycarbonate Polycarbonate is called for short PC, is amorphous polymer, has outstanding impact-resistance, size and thermostability and high glossiness, excellent mechanical strength, electrical insulating property and flame-retarding characteristic.But, because its molecular rigidity and sterically hindered bigger, its melt temperature is higher, processing difficulties, the forming process difficulty, and the goods unrelieved stress is big, stress cracking easily takes place, PC is to the breach sensitivity simultaneously, and hydrolysis stability and solvent resistance are bad, thereby defectives such as Costco Wholesale height have limited PC application in practice.
PC and PBT blend are made polyblend, make up for each other's deficiencies and learn from each other, improved stress cracking resistance, solvent resistance and the forming process of PC, and reduced the cost of PC, and improved thermotolerance, the impelling strength of PBT, reduced the big defective of molding shrinkage.Add efficient compatilizer and fire retardant simultaneously, thereby make that the PBT/PC alloy has that good forming process, shock resistance, high temperature heat-resistant are aging, chemical-resistant resistance and performance such as fire-retardant.
High performance flame-retardant PBT/PC polyblend is owing to have outstanding over-all properties, thereby can be widely used in electronic apparatus, automobile, communication device, as neck cities such as household electrical appliance such as mobile phone shell, facsimile recorder shell, fire prevention electric switch, socket panel, steam and dry iron shell and transformer framework bases, but this type of alloy material also mainly depends on external import at present, and external major company takes blockade on new techniques at the technical elements of this novel material to China.Because research and development, the application of flame-retardant PBT/PC alloy are started late, its overall performance does not also reach service requirements, so also be not widely used at home.Therefore research and develop the high-performance refractory PBT/PC alloy material of high comprehensive performance.
At this situation, some manufacturer improves, and as disclosing a kind of environmental-friendly fire-retardant PC/PBT polyblend among Chinese patent literature CN 1 789333A, it is characterized in that: composition of raw materials is: major ingredient: (1) polycarbonate, 50～60 parts by weight; (2) polybutylene terephthalate, 20～30 parts by weight; Auxiliary material: (1) composite flame-retardant agent: aromatic phosphoric ester, 5～7 parts by weight; The phenmethyl silicone, the 2-4 parts by weight; (2) compatilizer: MBS synthetic resins, 4～6 parts by weight; SMAH, 3～5 parts by weight; (3) oxidation inhibitor: antioxidant 1010,0.2 parts by weight; Oxidation inhibitor 168,0.2 parts by weight; (4) toughner: nano-calcium carbonate, 1～2 parts by weight.The cost of manufacture of this environmental-friendly fire-retardant PC/PBT polyblend compares higher.
Summary of the invention
Purpose of the present invention aim to provide a kind ofly have that efficient consistency, impelling strength are good, highly effective flame-retardant, environmental protection degree height, processing characteristics excellence, the flame-retardant PBT/PC polyblend that the cost of material is low and preparation method thereof, to overcome weak point of the prior art.
A kind of flame-retardant PBT/PC polyblend by this purpose design, its material component comprises major ingredient and auxiliary material, major ingredient is polybutylene terephthalate and polycarbonate, auxiliary material comprises compatilizer, composite flame-retardant agent and oxidation inhibitor, it is characterized in that auxiliary material also comprises lubricant, wherein, the mass fraction of each component is followed successively by:
(1) major ingredient:
1) polybutylene terephthalate, 30.1～55;
2) polycarbonate, 20～40;
(2) auxiliary material:
1) compatilizer, 5～15;
2) composite flame-retardant agent: tetrabromobisphenol a polycarbonate oligopolymer, 8～16; Antimonous oxide, 1.5～6;
3) oxidation inhibitor: 0.2～0.4,
4) lubricant, 0.2～0.6.
The melt flow rate (MFR) of described polycarbonate is 5～20g/10min.
The melt flow rate (MFR) of described polycarbonate is 10～15g/10min.
The limiting viscosity of described polybutylene terephthalate is 0.75～1.3dl/g.
The limiting viscosity of described polybutylene terephthalate is 0.9～1.1dl/g.
Described compatilizer is acrylate and the Bifunctionalized ethylene elastomer of glycidyl methacrylate.
Described oxidation inhibitor is Hinered phenols primary antioxidant and phosphorous acid ester auxiliary antioxidant.
The Hinered phenols primary antioxidant is 1010 (four (β-(3, the 5-di-tert-butyl-hydroxy phenyl) 1076 (β-(3 pentaerythritol ester propionic acid)),, propionic acid octadecanol ester) and 1098 (N the 5-di-tert-butyl-hydroxy phenyl), N ' hexa-methylene two (3,5-di-t-butyl-4-hydroxybenzene propionic acid amide)).
The phosphorous acid ester auxiliary antioxidant is 168 (tricresyl phosphite (2, the 4-di-tert-butyl-phenyl) esters), 618 (pentaerythritol bis-phosphite two (stearyl alcohol) esters), 626 (two diphosphorous acid two (2, the 4-di-tert-butyl-phenyl) esters of tetramethylolmethane) etc.
Wherein, numeral is that each oxidation inhibitor is at the common abbreviation in auxiliary agent the inside, hereinafter to be referred as its respective digital.
When using oxidation inhibitor, Hinered phenols primary antioxidant and phosphorous acid ester auxiliary antioxidant are to use simultaneously, and it mixes the ratio of using is 1: 1.
Described lubricant is a silicone lubricant.
Described antimonous oxide is a ultra-fine micropowder.
The making method of a kind of flame-retardant PBT/PC polyblend when it is characterized in that preparing, at first weighs each component by above-mentioned quality prescription,
(1) preparation of major ingredient is dried by the fire 10h with polybutylene terephthalate and the polycarbonate raw material that has weighed down at 120 ℃;
(2) preparation of composite flame-retardant agent by mixing, obtains composite flame-retardant agent with the tetrabromobisphenol a polycarbonate oligopolymer of weighing and antimonous oxide;
(3) mixing of major ingredient and auxiliary material is carried out the high-speed mixing stirring with exsiccant major ingredient and composite flame-retardant agent, compatilizer, oxidation inhibitor and lubricant, and each component fully is uniformly dispersed;
(4) melt extrude, the material that mixes is dropped in the twin screw extruder, melt extrude, forcing machine melt extrudes temperature and is controlled in 240 ℃～255 ℃ scopes;
(5) granulation and aftertreatment are carried out cooling granulation with the material of extruding, pack after air-dry finished product.
The present invention has at first solved PBT and PC biphase compatibility problem, is beneficial to give full play to both advantages.Though have some similar on the molecular structure of PBT and PC, all contain the phenyl ring base, make PBT and PC have certain consistency,, PBT is a crystalline polymer, during with the PC blend, easily is separated, the interface is cohered bad, and its alloy is easily crisp, thereby impelling strength is undesirable.So compatilizer is as the core technology of PC/PBT alloy material, its quality is directly connected to the performance of PC/PBT alloy material.By adding efficient compatilizer, thereby improve the consistency of PBT and PC, to improve the impelling strength of blend.The present invention adopts the Bifunctionalized ethylene elastomer of acrylate and glycidyl methacrylate (GMA) as compatilizer, utilizes the interaction between the polar functional group, improves the consistency of PBT/PC, has obtained good toughening effect simultaneously.
The present invention does not then reduce under the rerum natura condition of plastic alloy material excellence in assurance, selects efficient flame-retarding agent to reach fire-retardant purpose.Fire retardant adopts the tetrabromobisphenol a polycarbonate oligopolymer, the tetrabromo-bisphenol oligopolymer is as the fire retardant of polyester material, its flame retarding efficiency height, its flame retardant products life-time service can not separated out yet, color, intensity, melt fluidity and the thermostability that can keep polyester material simultaneously effectively, and can provide higher melt fluidity, in addition, the ultraviolet stability of this fire retardant makes it can satisfy the prescription requirement of indoor fluorescence irradiation and outdoor daylight irradiation, can also guarantee that product has splendid electrical property and thermostability.Though this fire retardant is a brominated flame retardant, its burning does not produce toxic substance, and addition is little, and little to environmental hazard, its fire retardant material meets international environmental requirement fully.，
Present stage, all there are mobile relatively poor characteristics to a certain degree in the PC/PBT plastic alloy material of state's class, the present invention adopts silicone lubricant, its melting index is reached more than the 15g/min, improved the production efficiency of product product, therefore this fire retardant alloy material is when some thin-gage goods of moulding or blind hole position, can avoid phenomenons such as mold filling is discontented, thereby have outstanding practicality and excellent processing characteristics.
The present invention has that the cost of material is low, complete processing is simple, the material over-all properties is outstanding and the high characteristics of cost performance.
The present invention makes polyblend have excellent comprehensive mechanical properties and processing fluidity by adding the composite flame-retardant agent of efficient compatilizer, highly-efficient lubricant and environment-friendly high-efficiency, and its flame retardant properties reaches the standard of U.S. UL-94V-0 (1.6mm) level fully.High-performance refractory PBT/PC alloy material is owing to have outstanding over-all properties, and some thin-gage goods of energy moulding, thereby can be widely used in electronic apparatus, automobile, communication device, as mobile phone shell and facsimile recorder shell, prevent fires electric switch, socket panel, steam and dry iron shell, transformer framework and household electrical appliance etc.
Embodiment
Below in conjunction with embodiment the present invention is further described.
First embodiment
During making, at first undertaken by following requirement,
The first step is carried out the preparation of major ingredient,
1) take by weighing polybutylene terephthalate, mass fraction is 44.0; The limiting viscosity of polybutylene terephthalate is 0.75～1.3dl/g, and its limiting viscosity is preferably 0.9～1.1dl/g;
2) take by weighing polycarbonate, mass fraction is 29.0; The melt flow rate (MFR) of polycarbonate is 5～20g/10min, and its melt flow rate (MFR) is preferably 10～15g/10min;
The polybutylene terephthalate and the polycarbonate raw material that have weighed are dried by the fire 10h down at 120 ℃;
In second step, carry out the preparation of auxiliary material:
1) compatilizer takes by weighing the Bifunctionalized ethylene elastomer of acrylate and glycidyl methacrylate, and mass fraction is 9.7;
2) composite flame-retardant agent: comprise main flame retardant and auxiliary flame retardant, main flame retardant is the tetrabromobisphenol a polycarbonate oligopolymer, and mass fraction is 13.2; Auxiliary flame retardant is a superfine antimony trioxide, and mass fraction is 3.3; The ultra-fine micropowder size of this antimonous oxide is 0.3mm～0.5mm; Obtain composite flame-retardant agent after the main flame retardant that takes by weighing and auxiliary flame retardant mixed;
3) oxidation inhibitor, take by weighing Hinered phenols primary antioxidant and phosphorous acid ester auxiliary antioxidant, the Hinered phenols primary antioxidant is selected any in 1010,1076 and 1098 for use, the phosphorous acid ester auxiliary antioxidant is selected any in 168,618 and 626 for use, it mixes the ratio of using is 1: 1, and its total mass fraction is 0.3;
4) lubricant takes by weighing silicone lubricant, and mass fraction is 0.5.
The 3rd step, carry out the mixing of major ingredient and auxiliary material, exsiccant major ingredient and compatilizer, composite flame-retardant agent, oxidation inhibitor and lubricant are carried out the high-speed mixing stirring, each component in the mixture fully is uniformly dispersed;
The 4th step melt extruded, and the material that mixes is dropped in the twin screw extruder, melt extruded, and forcing machine melt extrudes temperature and is controlled in 240 ℃～255 ℃ scopes;
In the 5th step, granulation and aftertreatment are carried out cooling granulation with the material of extruding, pack after air-dry finished product.
This granulation is injection molded into the standard batten by national standard, and by every rerum natura of national standard test gained batten, its result is as shown in table 1 below again.
Table 1:
| Performance | Unit | Standard | Data |
| Density | g/cm 3 | GB/T1033-1986 | 1.22 |
| Melting index | g/10min | GB/T3682-2000 | 17.6 |
| Tensile strength | MPa | GB/T1040-2006 | 45.2 |
| Flexural strength | MPa | GB/T9341-2000 | 65.99 |
| Modulus in flexure | MPa | GB/T9341-2000 | 1891.11 |
| Notched Izod impact strength | KJ/M 2 | GB/T1843-1996 | 52.87 |
| Heat-drawn wire | ℃ | GB/T1634-2004 | 116.6 |
| Combustionproperty | 1.6mm | UL-94 | V-0 |
Second embodiment
During making, at first undertaken by following requirement,
The first step is carried out the preparation of major ingredient,
1) take by weighing polybutylene terephthalate, mass fraction is 36.8;
2) take by weighing polycarbonate, mass fraction is 36.8;
The polybutylene terephthalate and the polycarbonate raw material that have weighed are dried by the fire 10h down at 120 ℃;
In second step, carry out the preparation of auxiliary material:
1) compatilizer takes by weighing the Bifunctionalized ethylene elastomer of acrylate and glycidyl methacrylate, and mass fraction is 9.8;
2) composite flame-retardant agent: comprise main flame retardant and auxiliary flame retardant, main flame retardant is the tetrabromobisphenol a polycarbonate oligopolymer, and mass fraction is 12.6; Auxiliary flame retardant is a superfine antimony trioxide, and mass fraction is 3.2; Obtain composite flame-retardant agent after the main flame retardant that takes by weighing and auxiliary flame retardant mixed;
3) oxidation inhibitor, take by weighing Hinered phenols primary antioxidant and phosphorous acid ester auxiliary antioxidant, the Hinered phenols primary antioxidant is selected any in 1010,1076 and 1098 for use, the phosphorous acid ester auxiliary antioxidant is selected any in 168,618 and 626 for use, it mixes the ratio of using is 1: 1, and its total mass fraction is 0.3;
4) lubricant takes by weighing silicone lubricant, and mass fraction is 0.5.
The 3rd step, carry out the mixing of major ingredient and auxiliary material, exsiccant major ingredient and compatilizer, composite flame-retardant agent, oxidation inhibitor and lubricant are carried out the high-speed mixing stirring, each component in the mixture fully is uniformly dispersed;
The 4th step melt extruded, and the material that mixes is dropped in the twin screw extruder, melt extruded, and forcing machine melt extrudes temperature and is controlled in 240 ℃～255 ℃ scopes;
In the 5th step, granulation and aftertreatment are carried out cooling granulation with the material of extruding, pack after air-dry finished product.
Again with this blend composition by mixing granulator in the forcing machine, the gained mixing granulator is made finished product through injection molding, by performances such as the machinery of national standard test gained finished product, fire-retardant and melting index, its result is as shown in table 2 below again.
Table 2:
| Performance | Unit | Standard | Data |
| Density | g/cm 3 | GB/T1033-1986 | 1.21 |
| Melting index | g/10min | GB/T3682-2000 | 15.6 |
| Tensile strength | MPa | GB/T1040-2006 | 43.43 |
| Flexural strength | MPa | GB/T9341-2000 | 63.44 |
| Modulus in flexure | MPa | GB/T9341-2000 | 1800.2 |
| Notched Izod impact strength | KJ/M 2 | GB/T1843-1996 | 57.41 |
| Heat-drawn wire | ℃ | GB/T1634-2004 | 97.2 |
| Combustionproperty | 1.6mm | UL-94 | V-0 |
All the other are not stated part and see first embodiment, no longer repeat.
The 3rd embodiment
During making, at first undertaken by following requirement,
The first step is carried out the preparation of major ingredient,
1) take by weighing polybutylene terephthalate, mass fraction is 51.5;
2) take by weighing polycarbonate, mass fraction is 21;
The polybutylene terephthalate and the polycarbonate raw material that have weighed are dried by the fire 10h down at 120 ℃;
In second step, carry out the preparation of auxiliary material:
1) compatilizer takes by weighing the Bifunctionalized ethylene elastomer of acrylate and glycidyl methacrylate, and mass fraction is 9.7;
2) composite flame-retardant agent: comprise main flame retardant and auxiliary flame retardant, main flame retardant is the tetrabromobisphenol a polycarbonate oligopolymer, and mass fraction is 13.5; Auxiliary flame retardant is a superfine antimony trioxide, and mass fraction is 3.5; Obtain composite flame-retardant agent after the main flame retardant that takes by weighing and auxiliary flame retardant mixed;
3) oxidation inhibitor, take by weighing Hinered phenols primary antioxidant and phosphorous acid ester auxiliary antioxidant, the Hinered phenols primary antioxidant is selected any in 1010,1076 and 1098 for use, the phosphorous acid ester auxiliary antioxidant is selected any in 168,618 and 626 for use, it mixes the ratio of using is 1: 1, and its total mass fraction is 0.3;
4) lubricant takes by weighing silicone lubricant, and mass fraction is 0.5.
The 3rd step, carry out the mixing of major ingredient and auxiliary material, exsiccant major ingredient and compatilizer, composite flame-retardant agent, oxidation inhibitor and lubricant are carried out the high-speed mixing stirring, each component in the mixture fully is uniformly dispersed;
The 4th step melt extruded, and the material that mixes is dropped in the twin screw extruder, melt extruded, and forcing machine melt extrudes temperature and is controlled in 240 ℃～255 ℃ scopes;
In the 5th step, granulation and aftertreatment are carried out cooling granulation with the material of extruding, pack after air-dry finished product.
Again with this blend composition by mixing granulator in the forcing machine, the gained mixing granulator is made finished product through injection molding, by performances such as the machinery of national standard test gained finished product, fire-retardant and melting index, its result is as shown in table 3 below again.
Table 3:
| Performance | Unit | Standard | Data |
| Density | g/cm 3 | GB/T1033-1986 | 1.23 |
| Melting index | g/10min | GB/T3682-2000 | 18.2 |
| Tensile strength | MPa | GB/T1040-2006 | 42.02 |
| Flexural strength | MPa | GB/T9341-2000 | 62.44 |
| Modulus in flexure | MPa | GB/T9341-2000 | 1778.82 |
| Notched Izod impact strength | KJ/M 2 | GB/T1843-1996 | 50.17 |
| Heat-drawn wire | ℃ | GB/T1634-2004 | 73.3 |
| Combustionproperty | 1.6mm | UL-94 | V-0 |
All the other are not stated part and see first embodiment, no longer repeat.
Claims (10)
1. flame-retardant PBT/PC polyblend, its material component comprises major ingredient and auxiliary material, major ingredient is polybutylene terephthalate and polycarbonate, auxiliary material comprises compatilizer, composite flame-retardant agent and oxidation inhibitor, it is characterized in that auxiliary material also comprises lubricant, wherein, the mass fraction of each component is followed successively by:
(1) major ingredient:
1) polybutylene terephthalate, 30.1～55;
2) polycarbonate, 20～40;
(2) auxiliary material:
1) compatilizer, 5～15;
2) composite flame-retardant agent: tetrabromobisphenol a polycarbonate oligopolymer, 8～16; Antimonous oxide, 1.5～6;
3) oxidation inhibitor: 0.2～0.4,
4) lubricant, 0.2～0.6.
2. according to the described flame-retardant PBT of claim 1/PC polyblend, the melt flow rate (MFR) that it is characterized in that described polycarbonate is 5～20g/10min.
3. according to the described flame-retardant PBT of claim 2/PC polyblend, the melt flow rate (MFR) that it is characterized in that described polycarbonate is 10～15g/10min.
4. according to the described flame-retardant PBT of claim 1/PC polyblend, the limiting viscosity that it is characterized in that described polybutylene terephthalate is 0.75～1.3dl/g.
5. according to the described flame-retardant PBT of claim 4/PC polyblend, the limiting viscosity that it is characterized in that described polybutylene terephthalate is 0.9～1.1dl/g.
6. according to the described flame-retardant PBT of claim 1/PC polyblend, it is characterized in that described compatilizer is acrylate and the Bifunctionalized ethylene elastomer of glycidyl methacrylate.
7. according to the described flame-retardant PBT of claim 1/PC polyblend, it is characterized in that described oxidation inhibitor is Hinered phenols primary antioxidant and phosphorous acid ester auxiliary antioxidant, it mixes the ratio of using is 1: 1.
8. according to the described flame-retardant PBT of claim 1/PC polyblend, it is characterized in that described lubricant is a silicone lubricant.
9. according to the described flame-retardant PBT of claim 1/PC polyblend, it is characterized in that described antimonous oxide is a ultra-fine micropowder.
10. according to the making method of the described flame-retardant PBT of claim 1/PC polyblend, when it is characterized in that preparing, at first weigh each component by above-mentioned quality prescription,
(1) preparation of major ingredient is dried by the fire 10h with polybutylene terephthalate and the polycarbonate raw material that has weighed down at 120 ℃;
(2) preparation of composite flame-retardant agent by mixing, obtains composite flame-retardant agent with the tetrabromobisphenol a polycarbonate oligopolymer of weighing and antimonous oxide;
(3) mixing of major ingredient and auxiliary material is carried out the high-speed mixing stirring with exsiccant major ingredient and composite flame-retardant agent, compatilizer, oxidation inhibitor and lubricant, and each component fully is uniformly dispersed;
(4) melt extrude, the material that mixes is dropped in the twin screw extruder, melt extrude, forcing machine melt extrudes temperature and is controlled in 240 ℃～255 ℃ scopes;
(5) granulation and aftertreatment are carried out cooling granulation with the material of extruding, pack after air-dry finished product.
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| CNA2008102194453A CN101407621A (en) | 2008-11-26 | 2008-11-26 | Flame-retardant PBT / PC plastic alloy and manufacturing method thereof |
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| CN101914271A (en) * | 2010-09-02 | 2010-12-15 | 中国工程物理研究院化工材料研究所 | Environment-friendly flame retardant PBT/PC composite material and preparation method thereof |
| CN102002221A (en) * | 2010-12-29 | 2011-04-06 | 上海日之升新技术发展有限公司 | Halogen-free high-glowing filament light-off temperature flame-retardant PBT/PC (Poly Butylenes Terephthalate/Polyinyl Chloride) alloy material and preparation method thereof |
| CN102070886A (en) * | 2010-12-29 | 2011-05-25 | 上海日之升新技术发展有限公司 | PBT (polybutylene terephthalate)/PC (polycarbonate) alloy material with high CTI (comparative tracking index) value and high flame retardance and preparation method thereof |
| CN102250461A (en) * | 2011-06-07 | 2011-11-23 | 深圳市科聚新材料有限公司 | Umbrella skeleton material and preparation method thereof |
| CN102532849A (en) * | 2011-12-26 | 2012-07-04 | 上海普利特复合材料股份有限公司 | PC/ASA/PBT (poly carbonate/ acrylonitrile-styrene-acrylate/polybutylene terephthalate) alloy material and preparation method thereof |
| CN103351593A (en) * | 2013-07-14 | 2013-10-16 | 上海秋橙新材料科技有限公司 | Aging-resistant PC (Polycarbonate) -PBT (Polybutylene Terephthalate) plastic alloy |
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2008
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| CN102532849A (en) * | 2011-12-26 | 2012-07-04 | 上海普利特复合材料股份有限公司 | PC/ASA/PBT (poly carbonate/ acrylonitrile-styrene-acrylate/polybutylene terephthalate) alloy material and preparation method thereof |
| CN102532849B (en) * | 2011-12-26 | 2014-03-26 | 上海普利特复合材料股份有限公司 | PC/ASA/PBT (poly carbonate/ acrylonitrile-styrene-acrylate/polybutylene terephthalate) alloy material and preparation method thereof |
| CN103351593B (en) * | 2013-07-14 | 2015-11-18 | 上海秋橙新材料科技有限公司 | Anti-aging PC-PBT polyblend |
| CN103351593A (en) * | 2013-07-14 | 2013-10-16 | 上海秋橙新材料科技有限公司 | Aging-resistant PC (Polycarbonate) -PBT (Polybutylene Terephthalate) plastic alloy |
| CN104109367A (en) * | 2014-08-04 | 2014-10-22 | 武汉理工大学 | Flame-retardant PC (Polycarbonate)/PBT (Polybutylece Terephthalate) composite material and preparation method thereof |
| CN104270135A (en) * | 2014-09-19 | 2015-01-07 | 宁波恒越电器有限公司 | Touch switch |
| CN104559091A (en) * | 2015-02-12 | 2015-04-29 | 厦门德丰行塑胶工业有限公司 | High-heat-resistance and high-toughness base-coating-free product and preparation method thereof |
| CN109337329A (en) * | 2018-09-07 | 2019-02-15 | 广东聚石化学股份有限公司 | A kind of cold-resistant fire retardation PC/PBT alloy and preparation method thereof |
| CN109294178A (en) * | 2018-09-21 | 2019-02-01 | 广州找塑料新材料科技有限公司 | PVA fiber reinforcement flame-retardant PBT-PC alloy composite materials and its preparation method and application |
| CN110894348A (en) * | 2019-11-22 | 2020-03-20 | 中广核高新核材科技（苏州）有限公司 | Fiber-reinforced PC/PBT material and application thereof as new energy automobile connector material |
| CN112143202A (en) * | 2020-09-28 | 2020-12-29 | 北京天德聚源科技有限公司 | Plastic alloy material, preparation method thereof, building template and application |
| CN113637310A (en) * | 2021-08-17 | 2021-11-12 | 金发科技股份有限公司 | Polycarbonate/polyester alloy composition with long-term thermal oxidation stability and preparation method and application thereof |
| WO2023020398A1 (en) * | 2021-08-17 | 2023-02-23 | 金发科技股份有限公司 | Polycarbonate/polyester alloy composition having long-term thermal oxygen stability, preparation method therefor and application thereof |
| CN115368723A (en) * | 2022-07-01 | 2022-11-22 | 中国石油化工股份有限公司 | Formula and preparation method of high-impact-resistance low-temperature-resistance flame-retardant PC/PBT alloy material |
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