CN116285279A - Low-fluidity polycarbonate material and manufacturing method thereof - Google Patents
Low-fluidity polycarbonate material and manufacturing method thereof Download PDFInfo
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- CN116285279A CN116285279A CN202111520659.6A CN202111520659A CN116285279A CN 116285279 A CN116285279 A CN 116285279A CN 202111520659 A CN202111520659 A CN 202111520659A CN 116285279 A CN116285279 A CN 116285279A
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- polycarbonate
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- antioxidant
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- 229920000515 polycarbonate Polymers 0.000 title claims abstract description 104
- 239000004417 polycarbonate Substances 0.000 title claims abstract description 104
- 239000000463 material Substances 0.000 title claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 47
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 38
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000003607 modifier Substances 0.000 claims abstract description 21
- UMPGNGRIGSEMTC-UHFFFAOYSA-N 4-[1-(4-hydroxyphenyl)-3,3,5-trimethylcyclohexyl]phenol Chemical compound C1C(C)CC(C)(C)CC1(C=1C=CC(O)=CC=1)C1=CC=C(O)C=C1 UMPGNGRIGSEMTC-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000007334 copolymerization reaction Methods 0.000 claims abstract description 4
- DEBBJJUTLAGABF-UHFFFAOYSA-N ethene;phenol Chemical compound C=C.OC1=CC=CC=C1.OC1=CC=CC=C1 DEBBJJUTLAGABF-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229920000728 polyester Polymers 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims description 35
- 238000000034 method Methods 0.000 claims description 18
- 239000000155 melt Substances 0.000 claims description 16
- 238000002156 mixing Methods 0.000 claims description 13
- 238000001125 extrusion Methods 0.000 claims description 10
- 238000005469 granulation Methods 0.000 claims description 10
- 230000003179 granulation Effects 0.000 claims description 10
- 238000009826 distribution Methods 0.000 claims description 9
- 239000002994 raw material Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- 239000012258 stirred mixture Substances 0.000 claims description 7
- 239000004970 Chain extender Substances 0.000 claims description 6
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000007822 coupling agent Substances 0.000 claims description 3
- 239000003431 cross linking reagent Substances 0.000 claims description 3
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 3
- 125000000446 sulfanediyl group Chemical group *S* 0.000 claims description 3
- 239000013072 incoming material Substances 0.000 abstract description 2
- WPMYUUITDBHVQZ-UHFFFAOYSA-N 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoic acid Chemical compound CC(C)(C)C1=CC(CCC(O)=O)=CC(C(C)(C)C)=C1O WPMYUUITDBHVQZ-UHFFFAOYSA-N 0.000 description 12
- -1 pentaerythritol ester Chemical class 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/13—Phenols; Phenolates
- C08K5/134—Phenols containing ester groups
- C08K5/1345—Carboxylic esters of phenolcarboxylic acids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention relates to the technical field of polycarbonate materials, in particular to a low-fluidity polycarbonate material and a manufacturing method thereof; the low-fluidity polycarbonate material comprises the following components in parts by weight: 98-99.7 parts of polycarbonate, 0.2-1.5 parts of flow modifier, 0.1-0.4 part of antioxidant; the polycarbonate is one or more of bisphenol A type linear polycarbonate, polyester type polycarbonate, organosilicon copolymerization type polycarbonate, ethylene bisphenol A type polycarbonate and bisphenol TMC synthesized high-temperature resistant polycarbonate; in the invention, the polycarbonate is pretreated, the processing flow characteristic of the polycarbonate is effectively controlled by adjusting the molecular weight of the polycarbonate, and the polycarbonate is put into a production formula, so that the subsequent production has larger formula adjustment space besides increasing the allowable range of incoming materials.
Description
[ field of technology ]
The invention relates to the technical field of polycarbonate materials, in particular to a low-fluidity polycarbonate material.
[ background Art ]
Polycarbonate is one of the most common engineering plastics because of its excellent mechanical strength, transparency, dimensional stability and electrical properties; in practice, in the material for producing the polycarbonate as a base material, the polycarbonate with different physical properties is usually subjected to certain proportion adjustment to ensure that the melt flow rate and various properties of the polycarbonate reach the required specifications, so that the acceptable range of the polycarbonate is greatly limited; in recent years, the price of petroleum has been high, and the instability of the quality of polycarbonate raw materials has been increased.
[ invention ]
The invention aims to solve the technical problems that: the polycarbonates with different physical properties are regulated in a certain proportion, so that the acceptable range of the polycarbonates is limited; in recent years, the quality of the polycarbonate raw material is unstable; there is a need for a method of pre-treating polycarbonate that results in a more stable product performance after subsequent processing.
The technical scheme for solving the problems is as follows: the low-fluidity polycarbonate material is characterized by comprising the following components in parts by mass:
98-99.7 parts of polycarbonate;
0.2 to 1.5 portions of flow modifier;
0.1 to 0.4 part of antioxidant;
the polycarbonate is one or more of bisphenol A type linear polycarbonate, polyester type polycarbonate, organosilicon copolymerization type polycarbonate, ethylene bisphenol A type polycarbonate and bisphenol TMC synthesized high temperature resistant polycarbonate.
The flow modifier can be one or more of a chain extender, a cross-linking agent or a coupling agent.
The melt mass of the polycarbonate is between 3 and 80g/10min at 300 ℃ under the load weight of 1.2Kg, the weight average molecular weight is between 10000 and 50000, and the molecular weight distribution is between 1 and 3.
The antioxidant is one or more of hindered phenol antioxidants, phosphite antioxidants, thio antioxidants and the like.
The invention also comprises three manufacturing methods, comprising the following steps:
if the melt mass flow rate of the raw material polycarbonate is 16 (300 ℃/10 min) or more, a method one is adopted, and the method one comprises the following steps:
s1: the processing temperature of the extruder is set to 240-260 ℃;
s2: adding 99.2 parts by mass of polycarbonate into a stirring barrel;
s3: adding 0.7 parts by mass of a flow modifier into a stirring barrel;
s4: adding 0.1 part by mass of an antioxidant into a stirring barrel;
s5: uniformly stirring the mixture in the stirring barrel;
s6: putting the uniformly stirred mixture into an extruder for melt blending, extrusion and granulation;
if the melt mass flow rate of the raw material polycarbonate is between 7 and 15 (300 ℃/10 min), adopting a second method, wherein the second method comprises the following steps of:
s1: the processing temperature of the extruder is set to 260-280 ℃;
s2: adding 98.7 parts by mass of polycarbonate into a stirring barrel;
s3: adding 1 part by mass of a flow modifier into a stirring barrel;
s4: adding 0.3 parts by mass of an antioxidant into a stirring barrel;
s5: uniformly stirring the mixture in the stirring barrel;
s6: putting the uniformly stirred mixture into an extruder for melt blending, extrusion and granulation;
if the melt mass flow rate of the raw material is below 6 (300 ℃/10 min), a method III is adopted, and the method III comprises the following steps:
s1: the processing temperature of the extruder is set to 280-290 ℃;
s2: adding 99.3 parts by mass of polycarbonate into a stirring barrel;
s3: adding 0.6 parts by mass of a flow modifier into a stirring barrel;
s4: adding 0.1 part by mass of an antioxidant into a stirring barrel;
s5: uniformly stirring the mixture in the stirring barrel;
s6: and (3) putting the uniformly stirred mixture into an extruder for melt blending, extrusion and granulation.
[ detailed description ] of the invention
For further explanation of the technical means adopted by the present invention and the effects thereof, the following detailed description is given in connection with the embodiments of the present invention:
the invention provides a low-fluidity polycarbonate material which is characterized by comprising the following components in parts by mass:
98-99.7 parts of polycarbonate;
0.2 to 1.5 portions of flow modifier;
0.1 to 0.4 part of antioxidant;
the polycarbonate is one or more of bisphenol A type linear polycarbonate, polyester type polycarbonate, organosilicon copolymerization type polycarbonate, ethylene bisphenol A type polycarbonate and bisphenol TMC synthesized high temperature resistant polycarbonate.
The melt mass of the polycarbonate is between 3 and 80g/10min at 300 ℃ under the load weight of 1.2Kg, the weight average molecular weight is between 10000 and 50000, and the molecular weight distribution is between 1 and 3.
The flow modifier can be one or more of a chain extender, a cross-linking agent or a coupling agent.
The antioxidant is one or more of hindered phenol antioxidants, phosphite antioxidants, thio antioxidants and the like.
Example 1
The melt mass flow rate of the raw polycarbonate was 50 (300 ℃ C./10 min), in which case a method one was used, said method one comprising the steps of:
s1: the processing temperature of the extruder is set to 240-260 ℃;
s2: adding 99.2 parts by mass of polycarbonate into a stirring barrel;
s3: adding 0.7 parts by mass of a flow modifier into a stirring barrel;
s4: adding 0.1 part by mass of an antioxidant into a stirring barrel;
s5: uniformly stirring the mixture in the stirring barrel;
s6: putting the uniformly stirred mixture into an extruder for melt blending, extrusion and granulation;
specifically, the polycarbonate is bisphenol A type polycarbonate, the weight average molecular weight is 10000-50000, and the molecular weight distribution is 1-3.
0.7 part of flow modifier is a chain extender.
0.1 part of antioxidant is prepared by mixing 0.08 part of 1076 antioxidant (beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid n-stearyl alcohol ester) with 0.02 part of 1010 antioxidant (tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester).
Comparative example 1
The melt mass flow rate of the raw polycarbonate was 50 (300 ℃ C./10 min), in which case no method I was employed, which comprises the following components in parts by weight: 99.9 parts of polycarbonate and 0.1 part of antioxidant.
Specifically, the polycarbonate is bisphenol A type polycarbonate, the weight average molecular weight is 10000-50000, and the molecular weight distribution is 1-3.
0.1 part of antioxidant is prepared by mixing 0.08 part of 1076 antioxidant (beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid n-stearyl alcohol ester) with 0.02 part of 1010 antioxidant (tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester).
When the low-fluidity polycarbonate material is prepared, the components with the corresponding weight parts are weighed according to the proportion, and after being uniformly mixed, the components are subjected to melt extrusion granulation, and the processing temperature of an extruder is 240-260 ℃.
Example 2
The melt mass flow rate of the raw polycarbonate was 15 (300 ℃ C./10 min), in which case a second process was employed, which comprises the following steps:
s1: the processing temperature of the extruder is set to 260-280 ℃;
s2: adding 98.7 parts by mass of polycarbonate into a stirring barrel;
s3: adding 1 part by mass of a flow modifier into a stirring barrel;
s4: adding 0.3 parts by mass of an antioxidant into a stirring barrel;
s5: uniformly stirring the mixture in the stirring barrel;
s6: putting the uniformly stirred mixture into an extruder for melt blending, extrusion and granulation;
specifically, the polycarbonate is bisphenol A type polycarbonate, the weight average molecular weight is 10000-50000, and the molecular weight distribution is 1-3.
1 part of flow modifier is a chain extender.
0.3 part of antioxidant is prepared by mixing 0.24 part of 1076 antioxidant (beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid n-stearyl alcohol ester) with 0.06 part of 1010 antioxidant (tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester).
Comparative example 2
The melt mass flow rate of the raw polycarbonate was 15 (300 ℃ C./10 min), and no method II was employed at this time, which comprises the following components in parts by weight: 99.7 parts of polycarbonate and 0.3 part of antioxidant.
Specifically, the polycarbonate is bisphenol A type polycarbonate, the weight average molecular weight is 10000-50000, and the molecular weight distribution is 1-3.
0.3 part of antioxidant is prepared by mixing 0.24 part of 1076 antioxidant (beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid n-stearyl alcohol ester) with 0.06 part of 1010 antioxidant (tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester).
When the low-fluidity polycarbonate material is prepared, the components with the corresponding weight parts are weighed according to the proportion, and after being uniformly mixed, the components are subjected to melt extrusion granulation, and the processing temperature of an extruder is 260-280 ℃.
Example 3
The melt mass flow rate of the raw polycarbonate was 6 (300 ℃ C./10 min), in which case a method III was employed, which method III comprises the following steps:
s1: the processing temperature of the extruder is set to 280-290 ℃;
s2: adding 99.3 parts by mass of polycarbonate into a stirring barrel;
s3: adding 0.6 parts by mass of a flow modifier into a stirring barrel;
s4: adding 0.1 part by mass of an antioxidant into a stirring barrel;
s5: uniformly stirring the mixture in the stirring barrel;
s6: putting the uniformly stirred mixture into an extruder for melt blending, extrusion and granulation;
specifically, the polycarbonate is bisphenol A type polycarbonate, the weight average molecular weight is 10000-50000, and the molecular weight distribution is 1-3.
0.6 part of flow modifier is a chain extender.
0.1 part of antioxidant is prepared by mixing 0.08 part of 1076 antioxidant (beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid n-stearyl alcohol ester) with 0.02 part of 1010 antioxidant (tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester).
Comparative example 3
The melt mass flow rate of the raw polycarbonate was 6 (300 ℃ C./10 min), in which case method three was not employed, which comprised the following components in parts by weight: 99.9 parts of polycarbonate and 0.1 part of antioxidant.
Specifically, the polycarbonate is bisphenol A type polycarbonate, the weight average molecular weight is 10000-50000, and the molecular weight distribution is 1-3.
0.1 part of antioxidant is prepared by mixing 0.08 part of 1076 antioxidant (beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid n-stearyl alcohol ester) with 0.02 part of 1010 antioxidant (tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester).
When the low-fluidity polycarbonate material is prepared, the components with the corresponding weight parts are weighed according to the proportion, and after being uniformly mixed, the components are subjected to melt extrusion granulation, and the processing temperature of an extruder is 280-290 ℃.
From the above examples 1 to 3 and comparative examples 1 to 3, the flow index of the obtained materials was measured according to the standard, and the test results are shown in table 1:
table 1 test results
From the test results of example 1, example 2 and example 3, it is clear that: the invention significantly reduces the flowability of the polycarbonate by adding the flow modifier.
The beneficial effects of the invention are as follows: the invention is to pre-treat the polycarbonate, effectively control the processing flow characteristic by adjusting the molecular weight of the polycarbonate, and put the polycarbonate into a production formula, so that the invention not only increases the allowable range of the incoming material, but also has larger formula adjustment space in the subsequent production.
It should be noted that the present invention is not limited to the above-mentioned specific embodiments, and any simple modification, equivalent variation and modification of the above-mentioned embodiments by those skilled in the art based on the technical solutions of the present invention fall within the protection scope of the present invention.
Claims (7)
1. The low-fluidity polycarbonate material is characterized by comprising the following components in parts by mass:
98-99.7 parts of polycarbonate;
0.2 to 1.5 portions of flow modifier;
0.1 to 0.4 part of antioxidant.
2. The low-flow polycarbonate material of claim 1, wherein: the polycarbonate is one or more of bisphenol A type polycarbonate, polyester type polycarbonate, organosilicon copolymerization type polycarbonate, ethylene bisphenol A type polycarbonate and high temperature resistant polycarbonate synthesized by bisphenol TMC.
3. The low-flow polycarbonate material of claim 1, wherein: the melt mass of the polycarbonate is between 3 and 80g/10min at the temperature of 300 ℃ and the load weight of 1.2Kg, the weight average molecular weight is between 10000 and 50000, and the molecular weight distribution is between 1 and 3.
4. The low-flow polycarbonate material of claim 1, wherein: the flow modifier is one or more of a chain extender, a cross-linking agent and a coupling agent.
5. The low-flow polycarbonate material of claim 1, wherein: the antioxidant is one or more of hindered phenol antioxidants, phosphite antioxidants, thio antioxidants and the like.
6. A method for producing a low-flowability polycarbonate material, comprising the steps of:
s1: setting a specified extruder processing temperature;
s2: adding the polycarbonate with the specified mass parts into a stirring barrel;
s3: adding a specified mass part of flow modifier into a stirring barrel;
s4: adding the antioxidant with the specified mass parts into a stirring barrel;
s5: uniformly stirring the mixture in the stirring barrel;
s6: and (3) putting the uniformly stirred mixture into an extruder for melt blending, extrusion and granulation.
7. The method for producing a low-flowability polycarbonate material according to claim 6, characterized in that the production method comprises the following three steps:
when the melt mass flow rate of the raw material polycarbonate is more than 16 (300 ℃/10 min) (inclusive), adopting a method I: setting the processing temperature of the S1 extruder at 240-260 ℃; designating the polycarbonate in S2 as 99.2 parts by mass; designating the flow modifier in S3 as 0.7 parts; designating the antioxidant in S4 as 0.1 part;
when the mass flow rate of the melt of the raw material polycarbonate is 7-15 (300 ℃/10 min), adopting a second method: setting the processing temperature of the S1 extruder at 260-280 ℃; designating the polycarbonate in S2 as 98.7 parts by mass; designating the flow modifier in S3 as 1 part; designating the antioxidant in S4 as 0.3 parts;
when the melt mass flow rate of the raw material polycarbonate is 6 (300 ℃/10 min) or below, adopting a method III: setting the processing temperature of the S1 extruder to 280-290 ℃; designating the polycarbonate in S2 as 99.3 parts by mass; designating the flow modifier in S3 as 0.6 parts; the antioxidant in S4 was designated as 0.1 part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111520659.6A CN116285279A (en) | 2021-12-13 | 2021-12-13 | Low-fluidity polycarbonate material and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111520659.6A CN116285279A (en) | 2021-12-13 | 2021-12-13 | Low-fluidity polycarbonate material and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116285279A true CN116285279A (en) | 2023-06-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111520659.6A Pending CN116285279A (en) | 2021-12-13 | 2021-12-13 | Low-fluidity polycarbonate material and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116285279A (en) |
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2021
- 2021-12-13 CN CN202111520659.6A patent/CN116285279A/en active Pending
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