CN101864157A - Preparation method of polycarbonate used for blow molding - Google Patents
Preparation method of polycarbonate used for blow molding Download PDFInfo
- Publication number
- CN101864157A CN101864157A CN200910038657A CN200910038657A CN101864157A CN 101864157 A CN101864157 A CN 101864157A CN 200910038657 A CN200910038657 A CN 200910038657A CN 200910038657 A CN200910038657 A CN 200910038657A CN 101864157 A CN101864157 A CN 101864157A
- Authority
- CN
- China
- Prior art keywords
- polycarbonate
- districts
- preparation
- blow molding
- blowing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- B29C48/03—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
-
- 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
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
-
- 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
- B29C2948/92704—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
- B29C2948/92895—Barrel or housing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Polyesters Or Polycarbonates (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to the technical field of polycarbonate (PC), in particular to the polycarbonate used for blow molding and a preparation method thereof. The raw material in the preparation method comprises the following components in percentage by mass: 98 to 100 percent of the polycarbonate, 0.1 to 0.5 percent of chain extender, 0.1 to 1.0 percent of antioxidant, 0.01 to 0.5 percent of toner, and 0.01 to 0.5 percent of ultraviolet absorber. The polycarbonate used for the blow molding not only can be prepared simply and conveniently but also can greatly improve the yield of bottle blowing grade polycarbonate and reduce the cost; besides, blow molding uses prove that the performance of the polycarbonate for the blow molding can completely replace the bottle blowing grade polycarbonate of companies such as American GE, Germany Bayer and the like, and the polycarbonate for the blow molding meets requirements on materials for preparing drinking water buckets.
Description
Technical field:
The present invention relates to polycarbonate (PC) technical field, refer in particular to a kind of polycarbonate that is used for blowing and preparation method thereof.
Background technology:
The polycarbonate water white transparency, heat-resisting, shock resistance, fire-retardant, the favorable mechanical performance is all arranged in common use temperature.Compare with the polymethylmethacrylate that performance is approaching, the impact resistance of polycarbonate is good, the specific refractory power height, and good processability does not need additive just to have UL94V-0 level flame retardant properties.Along with the expansion day by day of polycarbonate production scale, polycarbonate is dwindling day by day with the price variance between the polymethylmethacrylate.Daily common application has glass, lamp shade of the anti-bullet of laser disc, eye plate, water bottle, splinter-proof glass, eye-protection glasses, bank or the like.But the polycarbonate injection moulding, extrude, mold pressing, blowing, thermoforming, printing, bonding, coating and machining, most important working method is injection moulding.Extrude with polycarbonate molecular weight and should can adopt extrusion-blown modling, annotate-blow, annotate-La-blow method moulding high quality, high transparent water bottle and bucket greater than 30,000.Polycarbonate machine-shaping temperature is higher, is subjected to hot oxygen and degrades, and can partly slow down degraded although add oxidation inhibitor, and this technical bottleneck can't finely solve.
Polycarbonate is as unique opaque products in the five large-engineering plastics, production capacity increases swift and violent both at home and abroad, the three big Application Areass of PC are glazing, automotive industry and electronics, electrical equipment industry, secondly also have office equipment, medical treatment and health care, film, leisure and protective equipments etc. such as industrial machinery part, CD, packing, computer, domestic polycarbonate mainly is the optical grade product at present, is used to produce CD, DVD CD, automobile lighting system etc.
The preparation scuttlebutt is a big consumption direction of polycarbonate.The bottle blowing grade polycarbonate has been widely used at present the manufacturing of 5 gallons of scuttlebutts, and domestic no manufacturer production all needs the product of corporate rate costlinesses such as import U.S. GE, German Bayer.As global polycarbonate scuttlebutt big producing country, but face problems such as localization of raw material deficiency, industry standard are complete, quality is uneven at present, so domestic many bucket producer adopts reworked material tubbing.This class reworked material sanitation performance causes anxiety, and the healthy of people in serious threat.
Summary of the invention:
The objective of the invention is in avoiding the deficiencies in the prior art, in the prescription of polycarbonate scuttlebutt PP Pipe Compound, introduce chainextender, carry out chemical reaction by chainextender and degraded polycarbonate in the machine-shaping process, increase and recover its original molecular weight and limiting viscosity, increase performances such as shock strength, flexural strength and tensile strength.Solve problems such as present bottle blowing grade polycarbonate starving, cost height, preparation difficulty, provide that a kind of production cost is low, preparation can guarantee polycarbonate of bottle blowing grade polycarbonate performance and preparation method thereof simply, again.
The present invention realizes that the technical scheme that its purpose adopts is: be used for the polycarbonate of blowing, the component of its raw material and the mass percent of each component are: polycarbonate 98%～100%, chainextender 0.1～0.5%, oxidation inhibitor 0.1%～1.0%, toner 0.01%～0.5%, UV light absorber 0.01%～0.5%.
Wherein, polycarbonate described in the component is the mixture of branched polycarbonate or linear polycarbonate resin or branched polycarbonate and linear polycarbonate resin.
Wherein chainextender described in the component is to contain the polyacrylic acid family macromolecule that a plurality of epoxide functions are rolled into a ball, and its molecular weight ranges is 4000-10000.
Wherein oxidation inhibitor described in the component is 4,4 '-thiobis (the 6-tertiary butyl-3-methylphenol), tris phosphite (2, the 4-di-tert-butyl-phenyl), a kind of or at least a mixture in four [β-(3,5 di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester.
Wherein UV light absorber described in the component is a Whitfield's ointment dihydroxyphenyl propane ester, 2-hydroxyl-4 n-octyloxies-benzophenone, 2,4 dihydroxyl benzophenone, a kind of or at least a mixture in 2-(2 '-dihydroxyl-the 3 '-tertiary butyl-5 '-aminomethyl phenyl)-5-chlorobenzotriazole.
The preparation method of polycarbonate of the present invention comprises the steps:
D) take by weighing each component by above-mentioned mass ratio;
E) raw material that weighs up is poured in the stirrer stirred;
F) mixing raw material that stirs is placed single screw extrusion machine, through the melting mixing extruding pelletization.
Wherein, the Heating temperature of each heating region is respectively in the described single screw extrusion machine: 250 ℃-280 ℃ in a district, 260 ℃-280 ℃ in two districts, 260 ℃-280 ℃ in three districts, 270 ℃-300 ℃ in four districts, 270 ℃-300 ℃ in five districts.
The polycarbonate that blowing provided by the present invention is used not only prepares simple and convenient, can significantly improve the output of bottle blowing grade polycarbonate and reduce cost, and product of the present invention to have prescription each component consistency good, can be used on transparent article; The chainextender that contains epoxide group is obvious to polycarbonate high temperature process molding effect, and reason is that this chainextender can be preferably reacts with the end group (hydroxyl, carboxyl) of polycarbonate, increases the relative molecular weight of polycarbonate, and performance is improved a lot; The synergy of chainextender and oxidation inhibitor can increase and recover its original molecular weight and limiting viscosity in the high temperature process moulding process, increase characteristics such as performance such as its shock strength, bending strength and tensile strength simultaneously.Use its performance of proof can replace the bottle blowing grade polycarbonate of companies such as U.S. GE, German Bayer fully through blowing, meet the material requirements for preparing scuttlebutt.
Embodiment:
The present invention is further described below in conjunction with specific embodiment.
Embodiment 1
Take by weighing polycarbonate 100kg, contain the polyacrylic acid family macromolecule 0.1kg, 4 that a plurality of epoxide functions are rolled into a ball, 4 '-thiobis (the 6-tertiary butyl-3-methylphenol) 0.5kg, 2,4-dihydroxy benaophenonel 0.02kg, toner 0.02kg,, pouring stirrer into stirs, then the mixing raw material that stirs is inserted single screw extrusion machine, the temperature of setting each heating region of single screw extrusion machine respectively is 260 ℃ in a district, 260 ℃ in two districts, 270 ℃ in three districts, 270 ℃ in four districts, 270 ℃ in five districts, gets final product through the melting mixing extruding pelletization.
Embodiment 2
Take by weighing polycarbonate 100kg, contain the polyacrylic acid family macromolecule 0.2kg, 4 that a plurality of epoxide functions are rolled into a ball, 4 '-thiobis (the 6-tertiary butyl-3-methylphenol) 0.5kg, 2,4-dihydroxy benaophenonel 0.02kg, toner 0.02kg, pouring stirrer into stirs, then the mixing raw material that stirs is inserted single screw extrusion machine, the temperature of setting each heating region of single screw extrusion machine respectively is 260 ℃ in a district, 260 ℃ in two districts, 270 ℃ in three districts, 270 ℃ in four districts, 270 ℃ in five districts, gets final product through the melting mixing extruding pelletization.
Embodiment 3
Take by weighing polycarbonate 100kg, contain the polyacrylic acid family macromolecule 0.3kg, 4 that a plurality of epoxide functions are rolled into a ball, 4 '-thiobis (the 6-tertiary butyl-3-methylphenol) 0.5kg, 2,4-dihydroxy benaophenonel 0.02kg, toner 0.03kg, pouring stirrer into stirs, then the mixing raw material that stirs is inserted single screw extrusion machine, the temperature of setting each heating region of single screw extrusion machine is 270 ℃ in a district, 270 ℃ in two districts, 280 ℃ in three districts, 280 ℃ in four districts, 280 ℃ in five districts, gets final product through the melting mixing extruding pelletization.
More than among each embodiment each component of raw material be the commercially available prod.
Through the blowing service test, the national standard of the equal accord with Q B2460-1999 of the product of the foregoing description " polycarbonate is drunk water pot ".
Claims (6)
1. polycarbonate that is used for blowing, it is characterized in that: the component of its raw material and the mass percent of each component are: polycarbonate 98%～100%, chainextender 0.1～0.5%, oxidation inhibitor 0.1%～1.0%, toner 0.01%～0.5%, UV light absorber 0.01%～0.5%.
2. a kind of polycarbonate that is used for blowing according to claim 1 is characterized in that: polycarbonate described in the component is the mixture of branched polycarbonate or linear polycarbonate resin or branched polycarbonate and linear polycarbonate resin.
3. according to the requirement of right 1, chainextender is to contain the polyacrylic acid family macromolecule that a plurality of epoxide functions are rolled into a ball, and its molecular weight ranges is 4000-10000.
4. according to the requirement of right 1, oxidation inhibitor is 4, a kind of or at least a mixture in 4 '-thiobis (the 6-tertiary butyl-3-methylphenol), tris phosphite (2, the 4-di-tert-butyl-phenyl), four [β-(3, the 5 di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester.
5. according to the requirement of right 1, UV light absorber is a Whitfield's ointment dihydroxyphenyl propane ester, 2-hydroxyl-4 n-octyloxies-benzophenone, 2, the 4-dihydroxy benaophenonel, a kind of or at least a mixture in 2-(2 '-dihydroxyl-the 3 '-tertiary butyl-5 '-aminomethyl phenyl)-5-chlorobenzotriazole.
6. the preparation method who is used for the polycarbonate of blowing as claimed in claim 1 is characterized in that: this method comprises the steps:
A) take by weighing each component by the described mass ratio of claim 1;
B) raw material that weighs up is poured in the stirrer stirred;
C) mixing raw material that stirs is placed single screw extrusion machine, through the melting mixing extruding pelletization.
The preparation method who is used for the polycarbonate of blowing according to claim 6 is characterized in that: the Heating temperature of each heating region is respectively in the described single screw extrusion machine: 250 ℃-280 ℃ in a district, 260 ℃-280 ℃ in two districts, 260 ℃-280 ℃ in three districts, 270 ℃-300 ℃ in four districts, 270 ℃-300 ℃ in five districts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910038657A CN101864157A (en) | 2009-04-16 | 2009-04-16 | Preparation method of polycarbonate used for blow molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910038657A CN101864157A (en) | 2009-04-16 | 2009-04-16 | Preparation method of polycarbonate used for blow molding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101864157A true CN101864157A (en) | 2010-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910038657A Pending CN101864157A (en) | 2009-04-16 | 2009-04-16 | Preparation method of polycarbonate used for blow molding |
Country Status (1)
| Country | Link |
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| CN (1) | CN101864157A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105368032A (en) * | 2015-12-13 | 2016-03-02 | 宋介珍 | Preparation method of toughened modified polycarbonate |
| CN109401263A (en) * | 2018-09-26 | 2019-03-01 | 柳州科沃塑业有限公司 | A kind of modified polycarbonate and preparation method thereof |
| CN112218906A (en) * | 2018-06-04 | 2021-01-12 | Sabic环球技术有限责任公司 | Transparent branched polycarbonates |
| US11499010B2 (en) | 2018-08-10 | 2022-11-15 | Lg Chem, Ltd. | Polycarbonate and preparation method thereof |
| US11884777B2 (en) | 2018-09-14 | 2024-01-30 | Lg Chem, Ltd. | Diol compound, polycarbonate, and preparation method of the same |
-
2009
- 2009-04-16 CN CN200910038657A patent/CN101864157A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105368032A (en) * | 2015-12-13 | 2016-03-02 | 宋介珍 | Preparation method of toughened modified polycarbonate |
| CN112218906A (en) * | 2018-06-04 | 2021-01-12 | Sabic环球技术有限责任公司 | Transparent branched polycarbonates |
| US11499010B2 (en) | 2018-08-10 | 2022-11-15 | Lg Chem, Ltd. | Polycarbonate and preparation method thereof |
| US11884777B2 (en) | 2018-09-14 | 2024-01-30 | Lg Chem, Ltd. | Diol compound, polycarbonate, and preparation method of the same |
| CN109401263A (en) * | 2018-09-26 | 2019-03-01 | 柳州科沃塑业有限公司 | A kind of modified polycarbonate and preparation method thereof |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101020 |