CN105462211A - Modified polycarbonate material - Google Patents
Modified polycarbonate material Download PDFInfo
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- CN105462211A CN105462211A CN201410450022.8A CN201410450022A CN105462211A CN 105462211 A CN105462211 A CN 105462211A CN 201410450022 A CN201410450022 A CN 201410450022A CN 105462211 A CN105462211 A CN 105462211A
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- polycarbonate
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Abstract
The object of the invention is to provide a modified polycarbonate material, of which the stability is improved, and a preparation method therefor. Polycarbonate is a kind of tough thermoplastic resin, the output of polycarbonate is second only to that of polyamide at present, and polycarbonate is the second largest engineering plastics and is resistant to weak acids, weak bases and neutral oil. Polycarbonate is not resistant to ultraviolet light and not resistant to strong bases. Polycarbonate is colorless, transparent, heat-resistant and shock-resistant and has good mechanical properties at ordinary service temperatures. Although polycarbonate has numerous advantages, polycarbonate has the major performance defects that the hydrolytic stability is not high enough, polycarbonate is notch-sensitive, the organic chemical resistance and scratch resistance are relatively poor, and polycarbonate will yellow in case of long-term exposure to ultraviolet rays. Just like other resin, polycarbonate is liable to etching by some organic solvents, so that the stability of polycarbonate is essential to modify. According to the modified polycarbonate material provided by the invention, the mechanical properties can reach use standards, and the stability quality of the polycarbonate material can be greatly improved, so that the safety performance is improved when the polycarbonate material is in use.
Description
Technical field
The invention belongs to polycarbonate material production technology, is that one improves the original deficiency of polycarbonate specifically, makes it have modified polycarbonate material of stability to hydrolysis resistance energy and preparation method thereof.
Background technology
Polycarbonate, English name: Polycarbonate, abbreviation title PC.Structural formula is as follows:
Polycarbonate is a kind of is a kind of tough thermoplastic resin, is the second largest engineering plastics polycarbonate weak acid resistant that output is only second to polymeric amide now, resistance to weak base, resistance to neutral oil.Polycarbonate is ultraviolet resistance not, not resistance to highly basic.Polycarbonate water white transparency, heat-resisting, shock resistance, has good mechanical property in common use temperature.
Although polycarbonate has many merits, salient features defect is that stability to hydrolysis resistance is not high enough, and to notch sensitive, resistance to organic chemistry moral character, resistance to scratch is poor, and long-term exposure can be turned to be yellow in ultraviolet.The same with other resins, the leaching easily by some organic solvent is turbid, and therefore the stability of polycarbonate is absolutely necessary modification.
Summary of the invention
The object of this invention is to provide a kind of modified polycarbonate material improving polycarbonate material stability and preparation method thereof.
Modified polypropylene material is made up of following weight ratio raw material:
Polycarbonate starting material: 70 ~ 80
Alkali free glass fibre: 20 ~ 30
Oxidation inhibitor: 0.8 ~ 1.2
Tinting material: 0.6 ~ 1.0
Ultraviolet absorbers: 8.5 ~ 9.5
Photostabilizer: 8.5 ~ 9.5
Dispersed lubricant: 0.8 ~ 1.2
Glass compatilizer: 4.5 ~ 5.5
Dispersion agent of the present invention is TAS-2A; Oxidation inhibitor is the multipolymer of ethylene-octene; Ultraviolet absorbers is Octabenzone.
The preparation method of this modified polycarbonate material, comprises the following steps: first above-mentioned various raw material to be dry mixed 7-8 minute in super mixer, then be placed in twin screw extruder through melt extruding, cooling, pelletizing, packaging final prod; Wherein, twin screw extruder one district temperature is 120-130 DEG C, and 2nd district are 170-180 DEG C, and 3rd district are 230-240 DEG C, and 4th district are 240-250 DEG C; 5th district are 210-220 DEG C, and the residence time is 1-2 minute, and pressure is 10-15Mpa.
The mechanical property of gained modified polycarbonate material of the present invention can reach use standard, and greatly can improve the stability of polycarbonate material, makes polycarbonate material improve safety performance in use.
Embodiment
Below by embodiment, the present invention is described further, and following examples are only that the present invention will be described but not are limited it.
Embodiment 1:
(1) by weight score to take each raw material respectively as follows:
Polycarbonate starting material: 75
Alkali free glass fibre: 25
Oxidation inhibitor (multipolymer of ethylene-octene): 1.0
Tinting material: 0.8
Ultraviolet absorbers (Octabenzone): 9.0
Photostabilizer: 9.0
Dispersed lubricant (TAS-2A): 1.0
Glass compatilizer: 5.0
(2) first above-mentioned various raw material is dry mixed 7-8 minute in super mixer, then be placed in twin screw extruder through melt extruding, cooling, pelletizing, packaging final prod; Wherein, twin screw extruder one district temperature is 120-130 DEG C, and 2nd district are 170-180 DEG C, and 3rd district are 230-240 DEG C, and 4th district are 240-250 DEG C; 5th district are 210-220 DEG C, and the residence time is 1-2 minute, and pressure is 10-15Mpa.
Experimental result:
Above-mentioned experimental result shows, the stability of modified polycarbonate material obtains very significantly improving, and all the other mechanical properties also get a promotion and improve.
Embodiment 2:
(1) by weight score to take each raw material respectively as follows:
Polycarbonate starting material: 70
Alkali free glass fibre: 20
Oxidation inhibitor (multipolymer of ethylene-octene): 0.8
Tinting material: 0.6
Ultraviolet absorbers (Octabenzone): 8.5
Photostabilizer: 8.5
Dispersed lubricant (TAS-2A): 0.8
Glass compatilizer: 4.5
(2) first above-mentioned various raw material is dry mixed 7-8 minute in super mixer, then be placed in twin screw extruder through melt extruding, cooling, pelletizing, packaging final prod; Wherein, twin screw extruder one district temperature is 120-130 DEG C, and 2nd district are 170-180 DEG C, and 3rd district are 230-240 DEG C, and 4th district are 240-250 DEG C; 5th district are 210-220 DEG C, and the residence time is 1-2 minute, and pressure is 10-15Mpa.
Experimental result:
Above-mentioned test result shows, the stability of polycarbonate material is significantly improved and improves.
Embodiment 3:
(1) by weight score to take each raw material respectively as follows:
Polycarbonate starting material: 80
Alkali free glass fibre: 30
Oxidation inhibitor (multipolymer of ethylene-octene): 1.2
Tinting material: 1.0
Ultraviolet absorbers (Octabenzone): 9.5
Photostabilizer: 9.5
Dispersed lubricant (TAS-2A): 1.2
Glass compatilizer: 5.5
(2) first above-mentioned various raw material is dry mixed 7-8 minute in super mixer, then be placed in twin screw extruder through melt extruding, cooling, pelletizing, packaging final prod; Wherein, twin screw extruder one district temperature is 120-130 DEG C, and 2nd district are 170-180 DEG C, and 3rd district are 230-240 DEG C, and 4th district are 240-250 DEG C; 5th district are 210-220 DEG C, and the residence time is 1-2 minute, and pressure is 10-15Mpa.
Experimental result:
Above-mentioned experimental result shows, the stability of polycarbonate material obtains comparatively significantly improving,
Above-described embodiment is of the present invention illustrating, is not used for limiting the present invention.Shown by above-mentioned experiment, wherein embodiment 1 is optimum weight percent, and the performance such as tensile strength, elongation at break, flexural strength of the modified polycarbonate material manufactured by present method obtains obvious improvement.
Modified polycarbonate material of the present invention, can the unborn stability to hydrolysis resistance of polycarbonate not high enough, leaching easily by some organic solvent is turbid, resistance to organic chemistry moral character, the deficiency that resistance to scratch is poor, for application and the further genralrlization of polycarbonate material, tool is of great significance.
Claims (4)
1. modified polycarbonate material, is characterized in that: be made up of following weight ratio raw material,
Polycarbonate starting material: 70 ~ 80
Alkali free glass fibre: 20 ~ 30
Oxidation inhibitor: 0.8 ~ 1.2
Tinting material: 0.6 ~ 1.0
Ultraviolet absorbers: 8.5 ~ 9.5
Photostabilizer: 8.5 ~ 9.5
Dispersed lubricant: 0.8 ~ 1.2
Glass compatilizer: 4.5 ~ 5.5.
2. modified polycarbonate material according to claim 1, is characterized in that: optimum weight percent raw material consists of:
Polycarbonate starting material: 75
Alkali free glass fibre: 25
Oxidation inhibitor: 1.0
Tinting material: 0.8
Ultraviolet absorbers: 9.0
Photostabilizer: 9.0
Dispersed lubricant: 1.0
Glass compatilizer: 5.0.
3. modified polycarbonate material according to claim 1, is characterized in that: dispersion agent of the present invention is TAS-2A; Oxidation inhibitor is the multipolymer of ethylene-octene; Ultraviolet absorbers is Octabenzone.
4. modified polycarbonate material according to claim 1, it is characterized in that: preparation method is, first above-mentioned various raw material is dry mixed 7-8 minute in super mixer, then be placed in twin screw extruder through melt extruding, cooling, pelletizing, packaging final prod; Wherein, twin screw extruder one district temperature is 120-130 DEG C, and 2nd district are 170-180 DEG C, and 3rd district are 230-240 DEG C, and 4th district are 240-250 DEG C; 5th district are 210-220 DEG C, and the residence time is 1-2 minute, and pressure is 10-15Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410450022.8A CN105462211A (en) | 2014-09-05 | 2014-09-05 | Modified polycarbonate material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410450022.8A CN105462211A (en) | 2014-09-05 | 2014-09-05 | Modified polycarbonate material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105462211A true CN105462211A (en) | 2016-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410450022.8A Pending CN105462211A (en) | 2014-09-05 | 2014-09-05 | Modified polycarbonate material |
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| CN (1) | CN105462211A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107586449A (en) * | 2017-10-18 | 2018-01-16 | 安徽省旌德强力玻纤有限公司 | A kind of glass toughened polycarbonate material and preparation method thereof |
| CN107652652A (en) * | 2017-10-18 | 2018-02-02 | 安徽省旌德强力玻纤有限公司 | A kind of organic glass fiber composite material of lightweight and preparation method thereof |
-
2014
- 2014-09-05 CN CN201410450022.8A patent/CN105462211A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107586449A (en) * | 2017-10-18 | 2018-01-16 | 安徽省旌德强力玻纤有限公司 | A kind of glass toughened polycarbonate material and preparation method thereof |
| CN107652652A (en) * | 2017-10-18 | 2018-02-02 | 安徽省旌德强力玻纤有限公司 | A kind of organic glass fiber composite material of lightweight and preparation method thereof |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160406 |