CN104974491A - UV-resistant high-temperature-resistant polycarbonate and preparation method thereof - Google Patents
UV-resistant high-temperature-resistant polycarbonate and preparation method thereof Download PDFInfo
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- CN104974491A CN104974491A CN201510372033.3A CN201510372033A CN104974491A CN 104974491 A CN104974491 A CN 104974491A CN 201510372033 A CN201510372033 A CN 201510372033A CN 104974491 A CN104974491 A CN 104974491A
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- polycarbonate
- high temperature
- temperature resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
UV-resistant high-temperature-resistant polycarbonate and a preparation method are disclosed. The polycarbonate is composed of the following raw materials in parts by weight: 28 to 38 parts of polycarbonate, 0.7 to 1.2 parts of lubricant, 3 to 7 parts of lead powder, 5 to 9 parts of epoxy resin, 0.2 to 0.4 part of antioxidant, and 0.8 to 1.5 parts of silicone oil. The preparation method comprises the following steps: weighing raw materials, mixing and blending polycarbonate, lead powder, epoxy resin, and antioxidant, dropwise adding lubricant and silicone oil to obtain a first mixture; and adding the first mixture into a single-screw extruder to carry out extrusion and granulation to obtain finished products; wherein the screw rod rotation speed is 80 to 120 rpm, and the extrusion temperature is 180 to 320 DEG C. The provided polycarbonate has the advantages of good effect on absorbing radiation, high temperature resistance, and wide application range.
Description
Technical field
the invention belongs to engineering materials field, be specifically related to high temperature resistant polycarbonate of a kind of uvioresistant and preparation method thereof.
Background technology
Polycarbonate (being called for short PC) is the high molecular polymer containing carbonate group in molecular chain, and the structure according to ester group can be divided into the broad varietys such as aliphatics, aromatic series, aliphatic-aromatic.Wherein, because the mechanical property of aliphatics and aliphatic-aromatic polycarbonate is lower, thus define its application in engineering plastics.Aromatic copolycarbonate is only had to obtain suitability for industrialized production at present.
Current polycarbonate performance is single, is placed in outdoor for a long time, easily turns to be yellow, also facile hydrolysis under high temperature, so continue a kind of radioprotective of research and development, resistant to elevated temperatures polycarbonate, meets productive life needs.
Summary of the invention
For the deficiencies in the prior art, the object of the present invention is to provide high temperature resistant polycarbonate of a kind of uvioresistant and preparation method thereof, this polycarbonate uvioresistant, does not turn yellow under long-term irradiation, and in addition, resistant to elevated temperatures ability is strong, applied range.
For solving prior art problem, the technical scheme that the present invention takes is:
The high temperature resistant polycarbonate of a kind of uvioresistant, is made up of the following component counted by weight: polycarbonate 28-38 part, lubricant 0.7-1.2 part, lead powder 3-7 part, epoxy resin 5-9 part, antioxidant 0.2-0.4 part, silicone oil 0.8-1.5 part.
As preferably, above-mentioned uvioresistant is high temperature resistant polycarbonate, is made up of the following component counted by weight: polycarbonate 32-36 part, lubricating oil 0.9-1.1 part, lead powder 4-6 part, epoxy resin 6-8 part, antioxidant 0.2-0.4 part, silicone oil 1.0-1.2 part.
As preferably, described lubricant position Vaseline.
The preparation method of above-mentioned uvioresistant is high temperature resistant polycarbonate, comprises the following steps:
Step 1, takes raw material, after polycarbonate, lead powder, epoxy resin and antioxidant mix and blend, more dropwise adds lubricant and silicone oil obtains the first mixture;
Step 2, the first mixture is dropped into single screw extrusion machine extruding pelletization and obtains finished product, wherein screw speed is 80-120rpm, and extrusion temperature is 180-320 DEG C.
As preferably, step 1 in above-mentioned preparation method, stirring velocity is 150-200rpm.
As preferably, step 2, the screw diameter of single screw extrusion machine is 30-50mm.
beneficial effect
Compared with prior art, the invention has the advantages that:
(1) polycarbonate of the present invention has the ability of radioprotective and high temperature resistant hydrolysis on the basis ensureing original performance;
(2) lubricant and silicone oil adopt and dropwise add, and gained polycarbonate is more smooth, easier demoulding when preparing other product.
Embodiment
Below in conjunction with specific embodiment, technical scheme of the present invention is further described, should be appreciated that specific embodiment described herein only in order to explain the present invention, be not construed as limiting the invention.
embodiment 1
The high temperature resistant polycarbonate of a kind of uvioresistant, is made up of the following component counted by weight: polycarbonate 28 parts, lubricant 0.7 part, 3 parts, lead powder, epoxy resin 5 parts, antioxidant 0.2 part, silicone oil 0.8 part.
The preparation method of above-mentioned uvioresistant is high temperature resistant polycarbonate, comprises the following steps:
Step 1, takes raw material, after the mixing of polycarbonate, lead powder, epoxy resin and antioxidant being stirred with 150rpm, more dropwise adds lubricant and silicone oil obtains the first mixture;
Step 2, the first mixture is dropped into single screw extrusion machine extruding pelletization and obtains finished product, wherein screw speed is 80rpm, and extrusion temperature is 180 DEG C, and screw diameter is 30mm.
embodiment 2
The high temperature resistant polycarbonate of a kind of uvioresistant, is made up of the following component counted by weight: polycarbonate 32-36 part, lubricating oil 0.9-1.1 part, lead powder 4-6 part, epoxy resin 6-8 part, antioxidant 0.2-0.4 part, silicone oil 1.0-1.2 part.
The preparation method of above-mentioned uvioresistant is high temperature resistant polycarbonate, comprises the following steps:
Step 1, takes raw material, after the mixing of polycarbonate, lead powder, epoxy resin and antioxidant being stirred with 100rpm, more dropwise adds lubricant and silicone oil obtains the first mixture;
Step 2, the first mixture is dropped into single screw extrusion machine extruding pelletization and obtains finished product, wherein screw speed is 180rpm, and extrusion temperature is 280 DEG C, and screw diameter is 40mm.
embodiment 3
The high temperature resistant polycarbonate of a kind of uvioresistant, is made up of the following component counted by weight: polycarbonate 28-38 part, lubricant 0.7-1.2 part, lead powder 3-7 part, epoxy resin 5-9 part, antioxidant 0.2-0.4 part, silicone oil 0.8-1.5 part.
The preparation method of above-mentioned uvioresistant is high temperature resistant polycarbonate, comprises the following steps:
Step 1, takes raw material, after the mixing of polycarbonate, lead powder, epoxy resin and antioxidant being stirred with 200rpm, more dropwise adds lubricant and silicone oil obtains the first mixture;
Step 2, the first mixture is dropped into single screw extrusion machine extruding pelletization and obtains finished product, wherein screw speed is 120rpm, and extrusion temperature is 320 DEG C, and screw diameter is 50mm.
comparative example 1
The high temperature resistant polycarbonate of a kind of uvioresistant, is made up of the following component counted by weight: polycarbonate 32-36 part, lubricating oil 0.9-1.1 part, lead powder 4-6 part, epoxy resin 6-8 part, antioxidant 0.2-0.4 part, silicone oil 1.0-1.2 part.
The preparation method of above-mentioned uvioresistant is high temperature resistant polycarbonate, comprises the following steps:
Step 1, takes raw material, after the mixing of polycarbonate, lead powder, epoxy resin and antioxidant being stirred with 100rpm, then adds lubricant and silicone oil obtains the first mixture;
Step 2, the first mixture is dropped into single screw extrusion machine extruding pelletization and obtains finished product, wherein screw speed is 180rpm, and extrusion temperature is 280 DEG C, and screw diameter is 40mm.
performance test
Embodiment of the present invention 1-3 and comparative example 1 gained polycarbonate are tested, the data obtained is as shown in the table:
As can be seen from upper table data, polycarbonate of the present invention inhales that radiation effect is good, and high temperature should not be hydrolyzed, and dropwise adds lubricant and silicone oil making in process to adopt, and improves the slipperiness of finished product.
The foregoing is only the specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; any those of ordinary skill in the art are in the technical scope disclosed by the present invention; the change can expected without creative work or replacement, all should be encompassed within protection scope of the present invention.Therefore, the protection domain that protection scope of the present invention should limit with claims is as the criterion.
Claims (6)
1. the high temperature resistant polycarbonate of uvioresistant, is characterized in that, is made up of the following feed composition counted by weight: polycarbonate 28-38 part, lubricant 0.7-1.2 part, lead powder 3-7 part, epoxy resin 5-9 part, antioxidant 0.2-0.4 part, silicone oil 0.8-1.5 part.
2. the high temperature resistant polycarbonate of uvioresistant according to claim 1, is characterized in that, is made up of the following component counted by weight: polycarbonate 32-36 part, lubricating oil 0.9-1.1 part, lead powder 4-6 part, epoxy resin 6-8 part, antioxidant 0.2-0.4 part, silicone oil 1.0-1.2 part.
3. the high temperature resistant polycarbonate of uvioresistant according to claim 1, is characterized in that: described lubricant is Vaseline.
4. the preparation method of the high temperature resistant polycarbonate of uvioresistant according to claim 1, is characterized in that, comprise the following steps:
Step 1, takes raw material, after polycarbonate, lead powder, epoxy resin and antioxidant mix and blend, more dropwise adds lubricant and silicone oil obtains the first mixture;
Step 2, the first mixture is dropped into single screw extrusion machine extruding pelletization and obtains finished product, wherein screw speed is 80-120rpm, and extrusion temperature is 180-320 DEG C.
5. the preparation method of the high temperature resistant polycarbonate of uvioresistant according to claim 4, is characterized in that: step 1, and stirring velocity is 150-200rpm.
6. the preparation method of the high temperature resistant polycarbonate of uvioresistant according to claim 4, is characterized in that: step 2, and the screw diameter of single screw extrusion machine is 30-50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510372033.3A CN104974491A (en) | 2015-06-30 | 2015-06-30 | UV-resistant high-temperature-resistant polycarbonate and preparation method thereof |
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| CN201510372033.3A CN104974491A (en) | 2015-06-30 | 2015-06-30 | UV-resistant high-temperature-resistant polycarbonate and preparation method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101707914A (en) * | 2007-05-25 | 2010-05-12 | 帝人株式会社 | Resin combination |
| CN103131166A (en) * | 2011-12-01 | 2013-06-05 | 合肥杰事杰新材料股份有限公司 | Low coefficient of thermal expansion thermoplastic resin composition, preparation method and application thereof |
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2015
- 2015-06-30 CN CN201510372033.3A patent/CN104974491A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101707914A (en) * | 2007-05-25 | 2010-05-12 | 帝人株式会社 | Resin combination |
| CN103131166A (en) * | 2011-12-01 | 2013-06-05 | 合肥杰事杰新材料股份有限公司 | Low coefficient of thermal expansion thermoplastic resin composition, preparation method and application thereof |
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Application publication date: 20151014 |