CN101955644A - Halogen-containing flame-retardant transparent polycarbonate material for preventing stress crack - Google Patents
Halogen-containing flame-retardant transparent polycarbonate material for preventing stress crack Download PDFInfo
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- CN101955644A CN101955644A CN 201010507313 CN201010507313A CN101955644A CN 101955644 A CN101955644 A CN 101955644A CN 201010507313 CN201010507313 CN 201010507313 CN 201010507313 A CN201010507313 A CN 201010507313A CN 101955644 A CN101955644 A CN 101955644A
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- polycarbonate
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- polycarbonate material
- transparent polycarbonate
- stress cracking
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Abstract
The invention relates to a halogen-containing flame-retardant transparent polycarbonate material for preventing stress crack, which comprises the following components of 47.5 to 96wt% of polycarbonate, 1 to 35wt% of brominated polycarbonate, 1.0 to 3.0wt% of clarifier, 0.1 to 2.0wt% of antioxygen, 0.1 to 2.0wt% of lubricant and 1.3 to 5.5wt% of other auxiliaries. The halogen-containing flame-retardant transparent polycarbonate material for preventing the stress crack has the advantages of excellent comprehensive mechanical properties, attractive appearance of products and low price, basically maintains the original transparency of the polycarbonate material, is convenient for production, conforms to all environment protection requirements, and comprehensively enhances the competitiveness of the products.
Description
Technical field
The present invention relates to a kind of organic polymer composite, more particularly, what relate to a kind of anti-stress cracking has a halogen anti-flaming transparent polycarbonate material.The invention still further relates to the method that halogen anti-flaming transparent polycarbonate material is arranged of making this anti-stress cracking.
Background technology
Polycarbonate is a kind of unbodied, the nontoxic transparent thermoplastic polymer of tasteless odorless, and it has machinery and over-all propertieies such as heat and electricity, particularly tough height, and creep is little, and product size is stable, has the excellent high-temperature electrical property.Polycarbonate is widely used in each field of national economy aspect mechano-electronic electrical lighting building safety and the medicine equipment as a kind of engineering plastics with general high-performance.Adopt fire-retardant fireproof level polycarbonate material, can significantly improve its range of application, can substitute timber and metal or other materials in a lot of fields and use, and security improves greatly.But seen in the market, or cost an arm and a leg and strong, or performance is excellent inadequately to external import dependency, or the like shortcoming.Simultaneously, because the adding of fire retardant tends to seriously reduce the material original transparency.And polycarbonate material self has an inherent defective, is exactly to have big internal stress easily when injection moulding is produced, and causes the final product cracking, and condemnation factor is very high, has obviously strengthened cost.
Summary of the invention
The objective of the invention is to, what a kind of anti-stress cracking was provided has a halogen anti-flaming transparent polycarbonate material, and comprehensive mechanical performance is good, keeps the polycarbonate material original transparency substantially, and product appearance is attractive in appearance, and convenient for production.
Technical scheme provided by the invention is as follows: polycarbonate: 47.5-96%; Brominated polycarbonate: 1-35%; Transparent base: 1.0-3.0%; Oxidation inhibitor: 0.1-2.0%; Lubricant: 0.1-2.0%; Other auxiliary agents: 1.3-5.5%.
The preparation method that halogen anti-flaming transparent polycarbonate material is arranged of anti-stress cracking of the present invention, comprise the steps: earlier polycarbonate to be dried with 120 degree, then with oxidation inhibitor, brominated polycarbonate, transparent base, lubricant, other auxiliary agents proportionally after the weighing in mixer low speed mixing 5 minutes, after more in time through parallel parallel dual-screw extruding machine under the screw combinations situation that medium tenacity is sheared, keeping under the good vacuum state, extrude with certain screw speed is mixing, the pelletizing of water-cooled tie rod has a halogen anti-flaming transparent polycarbonate material through what screening and dewatering made anti-stress cracking.
The anti-stress cracking of the present invention halogen anti-flaming transparent polycarbonate material arranged, comprehensive mechanical performance is good, keeps the polycarbonate material original transparency substantially, product appearance is attractive in appearance, and convenient for production, also meets all environmental requirements simultaneously, low price, comprehensive like this product competitiveness that improved.
Embodiment
Below be the embodiment that halogen anti-flaming transparent polycarbonate material is arranged of anti-stress cracking of the present invention, therefore do not limit protection scope of the present invention.
Embodiment one, and what a kind of anti-stress cracking was provided has a halogen anti-flaming transparent polycarbonate material, by following composition by weight forming polycarbonate: 87.0%, brominated polycarbonate: 8%; Transparent base: 2.2%; Oxidation inhibitor: 1.0%, lubricant: 0.3%; Other auxiliary agents: 1.5%.
Earlier polycarbonate was dried 4 hours with 120 degree, then with oxidation inhibitor, brominated polycarbonate, transparent base, lubricant, other auxiliary agents proportionally after the weighing in mixer low speed mixing 5 minutes, mixer adopts low speed mixing, stainless steel, paddle should with the barrel gap less than 0.5 centimetre, the supplementary material mixed effect should visual various particles and powder even substantially, do not have obvious agglomerate or gather, and then in time through parallel parallel dual-screw extruding machine under the screw combinations situation that medium tenacity is sheared, twin screw extruder uses 36 length-to-diameter ratios, keeping under the good vacuum state, extrude with certain screw speed is mixing, the pelletizing of water-cooled tie rod has a halogen anti-flaming transparent polycarbonate material through what screening and dewatering made anti-stress cracking.
The above; it only is 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 disclosed technical scope of the present invention; variation or the replacement that can expect without creative work all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claims were limited.
Claims (2)
1. an anti-stress cracking has a halogen anti-flaming transparent polycarbonate material, it is characterized in that, by following composition by weight forming polycarbonate: 47.5-96%; Brominated polycarbonate: 1-35%; Transparent base: 1.0-3.0%; Oxidation inhibitor: 0.1-2.0%; Lubricant: 0.1-2.0%; Other auxiliary agents: 1.3-5.5%.
2. the preparation method that halogen anti-flaming transparent polycarbonate material is arranged of an anti-stress cracking, it is characterized in that, comprise the steps: earlier polycarbonate to be dried with 120 degree, then with oxidation inhibitor, brominated polycarbonate, transparent base, lubricant, other auxiliary agents proportionally after the weighing in mixer low speed mixing 5 minutes, after more in time through parallel parallel dual-screw extruding machine under the screw combinations situation that medium tenacity is sheared, keeping under the good vacuum state, extrude with certain screw speed is mixing, the pelletizing of water-cooled tie rod has a halogen anti-flaming transparent polycarbonate material through what screening and dewatering made anti-stress cracking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010507313 CN101955644A (en) | 2010-10-14 | 2010-10-14 | Halogen-containing flame-retardant transparent polycarbonate material for preventing stress crack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010507313 CN101955644A (en) | 2010-10-14 | 2010-10-14 | Halogen-containing flame-retardant transparent polycarbonate material for preventing stress crack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101955644A true CN101955644A (en) | 2011-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010507313 Pending CN101955644A (en) | 2010-10-14 | 2010-10-14 | Halogen-containing flame-retardant transparent polycarbonate material for preventing stress crack |
Country Status (1)
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| CN (1) | CN101955644A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102924897A (en) * | 2012-11-26 | 2013-02-13 | 科创聚合物(苏州)有限公司 | Halogen flame-retardant transparent polycarbonate material |
| CN103951952A (en) * | 2013-01-23 | 2014-07-30 | 科创聚合物(苏州)有限公司 | Halogen-containing flame retardant transparent polycarbonate material |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101205358A (en) * | 2007-09-30 | 2008-06-25 | 佛山市顺德区瑞能科技有限公司 | Polycarbonate composition having high light reflectivity and uses thereof |
-
2010
- 2010-10-14 CN CN 201010507313 patent/CN101955644A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101205358A (en) * | 2007-09-30 | 2008-06-25 | 佛山市顺德区瑞能科技有限公司 | Polycarbonate composition having high light reflectivity and uses thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102924897A (en) * | 2012-11-26 | 2013-02-13 | 科创聚合物(苏州)有限公司 | Halogen flame-retardant transparent polycarbonate material |
| CN103951952A (en) * | 2013-01-23 | 2014-07-30 | 科创聚合物(苏州)有限公司 | Halogen-containing flame retardant transparent polycarbonate material |
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Application publication date: 20110126 |