CN101704994B - Transparent flame-retarding polycarbonate (PC) material and preparation method thereof - Google Patents
Transparent flame-retarding polycarbonate (PC) material and preparation method thereof Download PDFInfo
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- CN101704994B CN101704994B CN2009101919347A CN200910191934A CN101704994B CN 101704994 B CN101704994 B CN 101704994B CN 2009101919347 A CN2009101919347 A CN 2009101919347A CN 200910191934 A CN200910191934 A CN 200910191934A CN 101704994 B CN101704994 B CN 101704994B
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- temperature
- retardant
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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
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/918—Thermal treatment of the stream of extruded material, e.g. cooling characterized by differential heating or cooling
- B29C48/9185—Thermal treatment of the stream of extruded material, e.g. cooling characterized by differential heating or cooling in the direction of the stream of the material
-
- 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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
-
- 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
-
- 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
- B29C2948/9258—Velocity
- B29C2948/9259—Angular velocity
-
- 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
-
- 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
- B29C2948/92885—Screw or gear
-
- 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
-
- 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
- B29C2948/92904—Die; Nozzle zone
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a transparent flame-retarding polycarbonate (PC) material and a preparation method thereof. The material comprises the following raw materials in part by weight: 45 to 55 parts of PC (the melt index is 22); 44 to 54 parts of PC (the melt index is 5); 0.2 to 0.6 part of PTFE powder; 0.04 to 0.12 part of flame retardant; and 0.2 to 0.8 part of release agent. In the method, two PC resins of different melt index specifications are adopted, the flame retardant (perfluorocarbon sylvine) and the release agent are added, extrusion production is performed by a double-screw extruder with nine temperature controlled regions under the specified technological conditions, and the transparent flame-retardant polycarbonate (PC) material with the V0 flame retardance tested by the UL-94 testing standards is prepared, the preparation process is simple and the preparation cost is low.
Description
Technical field
The present invention relates to fire-resistant engineering plastics, particularly a kind of transparent flame-retardant polycarbonate (PC) material and preparation method thereof.
Background technology
As the polycarbonate of one of five large-engineering plastics, be a kind of amorphous, do not have smell, tasteless, nontoxic, transparent thermoplastic polymer, be unique plastics variety with good transparency; And have physical strength, resistance toheat and anti-electric over-all properties preferably, simultaneously, also have the impact strength height; Creep properties is little; Product size is stable, is prone to strengthen non-toxic sanitary; Can be painted; Cost performance is high, but advantage such as chemically modified and physically modified potentiality are big is widely used in fields such as office equipment, medical treatment and health care, film, leisure and protective equipment such as glazing, automotive industry, electronics, electrical equipment industry, industrial machinery part, CD, packing, computingmachine.
Fierceness day by day along with market competition; All trades and professions are to the demands for higher performance of polycarbonate (PC) each side; Common polycarbonate (PC) has been difficult to satisfy industry requirement, but can carry out modification to polycarbonate (PC) according to demand, makes it adapt to different demands.In recent years; Manyly in the above-mentioned industry all high requirement has been proposed for the flame retardant resistance of polycarbonate (PC) material; To improve the fireproofing and heat resistant performance of its product, in existing polycarbonate (PC) material, flame retardant resistance can reach the V0 level through the UL-94 testing standard, and other is actually rare; And the ubiquity complicated process of preparation, the shortcoming that preparation cost is high.
To above-mentioned deficiency, need to explore fire-retardant polycarbonate (PC) material that a kind of simple process can prepare, to simplify its preparation technology, reduce preparation cost.
The utility model content
In view of this; The present invention provides a kind of transparent flame-retardant polycarbonate (PC) material and preparation method thereof; Adopt the molten PC resin that refers to specification of two kinds of differences, add perfluorocarbon sylvite fire retardant and releasing agent and prepare transparent flame-retardant polycarbonate (PC) material, technology is simple; Preparation cost is cheap, and prepared product performance are not second to the domestic and international transparent PC resin material performance of reporting.
Transparent flame-retardant polycarbonate of the present invention (PC) material comprises following raw material: PC (molten finger 22) 45～55 by weight, PC (molten finger 5) 44～54, PTFE powder 0.2～0.6, fire retardant 0.04～0.12, releasing agent 0.2～0.8.
Further, comprise following raw material: PC (molten finger 22) 50 by weight, PC (molten finger 5) 49, PTFE powder 0.2, fire retardant 0.08, releasing agent 0.5;
Further, said fire retardant is a perfluoro butyl potassium sulfonate fire retardant;
Further, said releasing agent is a pentaerythritol stearate;
Two of the object of the invention provides the preparation method of transparent flame-retardant polycarbonate material, and its method is: according to above-mentioned composition and proportion ingredient and mix, use forcing machine to produce;
Extrude processing parameter: said forcing machine is the twin screw extruder with 9 sections temperature controlled region; Engine speed is 295～305r/min; 1 district's temperature is 220 ± 10 ℃ in 9 sections temperature controlled region, and 2～3 district's temperature are 270 ± 10 ℃, and 4～5 district's temperature are 280 ± 10 ℃; 6～9 district's temperature are 290 ± 10 ℃, and head temperature is 300 ± 10 ℃.
Further, the said processing parameter of extruding is: engine speed is 300r/min, and 1 district's temperature is 220 ℃ in 9 sections temperature controlled region, and 2～3 district's temperature are 270 ℃, and 4～5 district's temperature are 280 ℃, and 6～9 district's temperature are 290 ℃, and head temperature is 300 ℃.
The beneficial effect of the invention: transparent flame-retardant polycarbonate of the present invention (PC) material comprises following raw material: PC (molten finger 22) 45～55, PC (molten finger 5) 44～54 by weight; PTFE powder 0.2～0.6, fire retardant 0.04～0.12, releasing agent 0.2～0.8; The present invention adopts the molten PC resin that refers to specification of two kinds of differences; Add perfluorocarbon sylvite fire retardant and releasing agent, extrude production according to specific processing condition, can prepare clear polycarbonate (PC) material that reaches V0 through UL-94 testing standard test flame retardant resistance through existing twin screw extruder; And preparation technology is simple, and preparation cost is low.
Embodiment
Embodiment 1:
The transparent flame-retardant polycarbonate of present embodiment (PC) material comprises following raw material by weight:
PC (molten finger 22) 45, PC (molten finger 5) 44, PTFE powder 0.2, perfluoro butyl potassium sulfonate fire retardant 0.04, pentaerythritol stearate 0.2.
Preparing above-described transparent flame-retardant polycarbonate (PC) preparation methods is: according to above-described composition and proportion ingredient, use the CTE35 twin screw extruder to produce, this machine has 9 segment standard temperature controlled region;
Extrude processing parameter: engine speed is 295r/min, and 1 district's temperature is 210 ℃ in 9 sections temperature controlled region, and 2～3 district's temperature are 260 ℃, and 4～5 district's temperature are 270 ℃, and 6～9 district's temperature are 280 ℃, and head temperature is 290 ℃.
Prescription and prepared transparent flame-retardant polycarbonate (PC) material property detected result such as the following table of technology through present embodiment:
Annotate: reference value is meant the laboratory average data, only is used for reference, not as product standard.
Can know that by last table the transparent flame-retardant polycarbonate of present embodiment (PC) material has excellent flame-retardant performance, and its physics, machinery and thermal property all reach higher level.
Embodiment 2:
The transparent flame-retardant polycarbonate of present embodiment (PC) material comprises following raw material: PC (molten finger 22) 50 by weight, PC (molten finger 5) 49, PTFE powder 0.2, perfluoro butyl potassium sulfonate fire retardant 0.08, pentaerythritol stearate 0.5.
Preparing above-described transparent flame-retardant polycarbonate (PC) preparation methods is: according to described composition of claim 1 and proportion ingredient, use the CTE35 twin screw extruder to produce, this machine has 9 segment standard temperature controlled region;
Extrude processing parameter: engine speed is 300r/min, and 1 district's temperature is 220 ℃ in 9 sections temperature controlled region, and 2～3 district's temperature are 270 ℃, and 4～5 district's temperature are 280 ℃, and 6～9 district's temperature are 290 ℃, and head temperature is 300 ℃.
Prescription and prepared transparent flame-retardant polycarbonate (PC) material property detected result such as the following table of technology through present embodiment:
Annotate: reference value is meant the laboratory average data, only is used for reference, not as product standard.
Can know that by last table the transparent flame-retardant polycarbonate of present embodiment (PC) material has excellent flame-retardant performance, and its physics, machinery and thermal property all reach higher level.
Embodiment 3:
The transparent flame-retardant polycarbonate of present embodiment (PC) material comprises following raw material: PC (molten finger 22) 55 by weight, PC (molten finger 5) 54, PTFE powder 0.6, perfluoro butyl potassium sulfonate fire retardant 0.12, pentaerythritol stearate 0.8.
Preparing above-described transparent flame-retardant polycarbonate (PC) preparation methods is: according to described composition of claim 1 and proportion ingredient, use the CTE35 twin screw extruder to produce, this machine has 9 segment standard temperature controlled region;
Extrude processing parameter: engine speed is 305r/min, and 1 district's temperature is 230 ℃ in 9 sections temperature controlled region, and 2～3 district's temperature are 280 ℃, and 4～5 district's temperature are 290 ℃, and 6～9 district's temperature are 300 ℃, and head temperature is 310 ℃.
Prescription and prepared transparent flame-retardant polycarbonate (PC) material property detected result such as the following table of technology through present embodiment:
Annotate: reference value is meant the laboratory average data, only is used for reference, not as product standard.
Can know that by last table the transparent flame-retardant polycarbonate of present embodiment (PC) material has excellent flame-retardant performance, and its physics, machinery and thermal property all reach higher level.
Explanation is at last; Above embodiment is only unrestricted in order to the technical scheme of explanation invention; Although with reference to preferred embodiment invention is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement the technical scheme of invention; And not breaking away from the aim and the scope of inventing technical scheme, it all should be encompassed in the middle of the claim scope of invention.
Claims (5)
1. a transparent flame-retardant polycarbonate (PC) material is characterized in that: comprise following raw material by weight:
2. transparent flame-retardant polycarbonate according to claim 1 (PC) material is characterized in that: comprise following raw material by weight:
3. transparent flame-retardant polycarbonate according to claim 2 (PC) material is characterized in that: said fire retardant is a perfluoro butyl potassium sulfonate fire retardant.
4. transparent flame-retardant polycarbonate according to claim 3 (PC) material is characterized in that: said releasing agent is a pentaerythritol stearate.
5. the preparation described transparent flame-retardant polycarbonate of claim 1 (PC) preparation methods is characterized in that: according to the described composition of claim 1 and proportion ingredient and mix, the use forcing machine is produced;
Extrude processing parameter: said forcing machine is the twin screw extruder with 9 sections temperature controlled region; Engine speed is 295～305r/min; 1 district's temperature is 220 ± 10 ℃ in 9 sections temperature controlled region, and 2～3 district's temperature are 270 ± 10 ℃, and 4～5 district's temperature are 280 ± 10 ℃; 6～9 district's temperature are 290 ± 10 ℃, and head temperature is 300 ± 10 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101919347A CN101704994B (en) | 2009-12-15 | 2009-12-15 | Transparent flame-retarding polycarbonate (PC) material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101919347A CN101704994B (en) | 2009-12-15 | 2009-12-15 | Transparent flame-retarding polycarbonate (PC) material and preparation method thereof |
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| CN101704994A CN101704994A (en) | 2010-05-12 |
| CN101704994B true CN101704994B (en) | 2012-01-18 |
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| CN102040820B (en) * | 2010-12-30 | 2012-11-28 | 深圳市科聚新材料有限公司 | Television casing material and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1617905A (en) * | 2001-12-10 | 2005-05-18 | 通用电气公司 | Translucent flame retardant polycarbonate compositions |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1617905A (en) * | 2001-12-10 | 2005-05-18 | 通用电气公司 | Translucent flame retardant polycarbonate compositions |
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Granted publication date: 20120118 Termination date: 20121215 |