CN109504059A - A kind of polycarbonate fretting map product and preparation method thereof - Google Patents
A kind of polycarbonate fretting map product and preparation method thereof Download PDFInfo
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
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- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
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- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/108—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond in a heterocyclic ring containing at least one carbon atom
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- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
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- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/06—CO2, N2 or noble gases
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- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/08—Supercritical fluid
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/20—Ternary blends of expanding agents
- C08J2203/204—Ternary blends of expanding agents of chemical foaming agent and physical blowing agents
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2369/00—Characterised by the use of polycarbonates; Derivatives of polycarbonates
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08J2455/00—Characterised by the use of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08J2423/00 - C08J2453/00
- C08J2455/02—Acrylonitrile-Butadiene-Styrene [ABS] polymers
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
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Abstract
The invention discloses a kind of polycarbonate fretting map product, which is 4.71*107~4.95*108cells/cm3；Micropore average-size is 18~43 μm.The invention also discloses the preparation methods of above-mentioned polycarbonate fretting map product, this method forms mixed material by the way that a certain amount of modified master to be added in polycarbonate, then is passed through the desired amount of supercritical fluid into mixed material and carries out fretting map injection or extrusion and be made.Polycarbonate fretting map product made from the method for the present invention has high pore density and small pore size, so that foaming product be made to have the characteristics that small density, light weight and excellent in mechanical performance.
Description
Technical field
The present invention relates to a kind of polycarbonate fretting map products, and the invention further relates to above-mentioned polycarbonate fretting map products
Preparation method belongs to the preparation technical field of polymer material.
Background technique
In recent years, because sound insulation, damping, it is heat-insulated, save raw material the advantages that, polymer foaming product is in packaging, building, automobile
It is widely used in the industries such as industry, space flight and aviation and sports equipment, wherein polymer foaming injected articles are because of production adaptation
Property it is strong, high-efficient, be easily operated automatically, the features such as shrink of product amount of warpage is few, is increasingly taken seriously.In general, foaming product
Internal abscess is to be generated in forming process by plastic raw materials or added certain gases outside and formed.It is formed and is sent out according to abscess
The difference of infusion type, it may include chemical blowing, physical blowing and mechanical mixture foaming etc. are come by the processing method of foaming product
See also mainly there is intermittent, continuous extrusion molding and injection moulding, this few class method respectively has advantage and disadvantage, thus there are different journeys
The application of degree.
Polycarbonate is generally viewed as a kind of engineering plastics, since its many performance advantage is widely used in modern workers and peasants
Among industry production.With the further investigation to polycarbonate application and development, polycarbonate starts to Gao Fuhe, Gao Gongneng, dedicated
Change, seriation direction develop, formd currently on the market automobile, CD, cabinet, office equipment, packaging, medicine, illumination,
A variety of polycarbonate products such as film.
Exactly because polycarbonate is widely used and its product is important industrial business value, fretting map product also layer
It is not poor out, meanwhile, for (micro-) foaming problems of polycarbonate, there is a more patent of invention concern, new method is not yet
It is disconnected to emerge in large numbers.But usually there is larger difference in the mechanical property of foaming product, be by abscess-size, close in this widely different degree
The influence of the structure parameters such as degree, distribution and form, for fretting map product, pursuit abscess-size is small and density height is very
Important, for batch-foamed, because process conditions are more controllable, reduce abscess-size and improve cell density then opposite appearance
Easily, but it is difficult to realize continuous production.And for injection and extrusion molding processing, in order to guarantee the smooth molding of material,
It generally requires its temperature setting much higher than fusing point, however, it is very much sensitive material to temperature that polycarbonate, which is one kind, it is melted
Body viscosity is influenced by temperature very greatly, this results in the melt viscosity under the processing conditions such as injection and extrusion and sharply becomes smaller, gas
It easily escapes, want to reduce the abscess-size of polycarbonate molding processing resulting product under such a condition and increases its abscess
Quantity seems more difficult and complicated.Therefore develop one kind be conducive to improve polycarbonate foaming product pore density method have very much
It is necessary.
Summary of the invention
Goal of the invention: technical problem to be solved by the invention is to provide a kind of polycarbonate fretting map product, the foaming
Product has high pore density and small pore size, so that foaming product is made to have the advantages that density is small, light weight, and
Foaming product also has good mechanical property.
The present invention also technical problems to be solved are to provide the preparation method of above-mentioned polycarbonate fretting map product, this method
It is produced using super-critical fluid injection machine, convenient and efficient by the addition of appropriate masterbatch, stable and strong operability is obtained
Foaming product has the advantages that density is small, light weight.
Summary of the invention: in order to solve the above technical problems, the technical scheme adopted by the invention is as follows:
A kind of polycarbonate fretting map product, the polycarbonate fretting map product internal capillary density are 4.71*107
~4.95*108cells/cm3；Micropore average-size is 18~43 μm.
The preparation method of above-mentioned polycarbonate fretting map product, this method are poly- by the way that first a certain amount of modified master is added
Mixed material is formed in carbonic ester, then is passed through the desired amount of supercritical fluid into mixed material and is carried out fretting map injection or micro- hair
Bubble is squeezed out and is made.
Wherein, the supercritical fluid is supercritical nitrogen and/or supercritical carbon dioxide；The intake of supercritical fluid
It is the 0.1%~2% of mixed material gross mass.
Wherein, above-mentioned modified master can be with are as follows: by the component of following mass fraction: 30~50 parts of ABS matrix, compatibility agent
10~50 parts, 5~50 parts of nano particle, enhancing modified 5~20 parts of material, 5~20 parts of toughening modifying material, photostability 1~5
Part, 1~5 part of antioxidant and 1~5 part of coupling agent are made by plastic extruder melt pelletization；In extrusion process, melting temperature
Degree is 180~190 DEG C.
Meanwhile above-mentioned modified master can also be by the component of following mass fraction: 30~50 parts of ABS matrix, chemical blowing
6~18 parts of agent, 0.036~0.052 part of blowing promotor, 10~50 parts of compatibility agent, 5~50 parts of nano particle, toughening modifying material 5
~20 parts, 1~5 part of photostability, 1~5 part of antioxidant and 1~5 part of coupling agent pass through plastic extruder melt pelletization system
?；In extrusion process, melting temperature is 180~190 DEG C.
Wherein, in modified master, compatibility agent ABS-g-MAH；Enhancing modified material is polyethylene naphthalate
(PEN)；Toughening modifying material is hydrogenated styrene-butadiene block copolymer (SEBS), ethylene methyl acrylate copolymer
(EMA) or one of ethylene-methyl acrylate-glyceryl methacrylate random terpolymer (E-MA-GMA)；
Nano particle is nano-titanium dioxide and/or nano silica, can also be nanometer calcium carbonate or nano montmorillonite；Coupling agent
For DOW CORNING KH550.
Wherein, the foaming agent is preferably azodicarbonamide resistant to high temperature and three diazanyl s-triazine are 2: 1 in mass ratio
Compound, blowing promotor is preferably zinc oxide, and the dosage of zinc oxide is the 0.9%~1.3% of azodicarbonamide quality, should
Mixture can be very good to play under the inducing action of zinc oxide takes same effect, meanwhile, adjust blowing temperature and polycarbonate
Processing and forming temperature be adapted.
When the formula of modified master are as follows: by the component of following mass fraction: 30~50 parts of ABS matrix, compatibility agent 10~50
Part, 5~50 parts of nano particle enhance modified 5~20 parts of material, 5~20 parts of toughening modifying material, 1~5 part of photostability, resist
When 1~5 part of oxygen agent and 1~5 part of coupling agent are blended, the preparation method of polycarbonate fretting map product of the present invention, specifically
Include the following steps:
Step 1, it prepares modified master: the ABS of formula ratio, compatibility agent, nano particle, the modified material of enhancing, toughening is changed
Property material, photostability and antioxidant add the coupling agent of formula ratio after being sufficiently mixed, obtained mixture is placed in modeling
Expect to obtain modified master after melt pelletization under certain melting temperature in extruder；
Step 2, the desired amount of modified master is added in polycarbonate, obtains mixed material；Wherein, modified master plus
Enter 1%~10% that amount is mixed material gross mass；
Step 3, the company that the desired amount of supercritical fluid carries out fretting map injection or extruded product is passed through into mixed material
Continuous production.
When the formula of modified master are as follows: by the component of following mass fraction: 30~50 parts of ABS matrix, chemical foaming agent 6~
18 parts, 0.036~0.052 part of blowing promotor, 10~50 parts of compatibility agent, 5~50 parts of nano particle, toughening modifying material 5~20
When part, 1~5 part of photostability, 1~5 part of antioxidant and 1~5 part of coupling agent are blended, polycarbonate fretting map of the present invention
The preparation method of product, specifically comprises the following steps:
Step 1, it prepares modified master: the ABS of formula ratio, compatibility agent, nano particle, toughening modifying material, chemistry is sent out
Infusion, blowing promotor, photostability and antioxidant add the coupling agent of formula ratio after being sufficiently mixed, the mixture that will be obtained
It is placed in plastic extruder, obtains modified master after melt pelletization under certain melting temperature；
Step 2, the desired amount of modified master, the modified material PEN of enhancing and polycarbonate are mixed, obtains mixture
Material；Wherein, the additional amount of modified master is 1%~10% (mass percentage) of mixed material gross mass, enhances modifier
The additional amount for expecting PEN is the 5~20% of mixed material gross mass.
Step 3, the company that the desired amount of supercritical fluid carries out fretting map injection or extruded product is passed through into mixed material
Continuous production.
Wherein, the melt flow volume rate of polycarbonate (PC) be 2~30cm3/10min (573K, 1.2Kg,
ISO1133), the melt flow volume rate of acrylonitrile-butadiene-styrene copolymer (ABS) is 1~20cm3/10min
(473K, 5.0Kg, ASTM D-1238).
The principle of preparation method of the present invention are as follows: on the one hand added modified master can promote the incorgruous nucleation of abscess,
Reduce surface required for abscess is formed can, among these nano particle and enhance modified material etc. and can each serve as nucleating agent with
And the effect of macromole nucleating agent, in addition, modified master and PC itself compatibility being added are suitable for improving to a certain extent
The melt strength of mixed material, reduce abscess be merged, rupture, melt step on it is sunken etc. may defect, meanwhile, it is each in modified master
Material to material mechanical performance promoted to take same effect obvious.These factors all finally promote the pore size of gained product smaller
And density increases.
Compared with the prior art, technical solution of the present invention has the beneficial effect that
Foaming product pore density made from the method for the present invention is high, size is small, foam structure more evenly, to make the foaming
The mechanical property of product increases；Since product internal capillary is finer and closely woven, i.e., it is internal containing a large amount of micropore, causes to make
The density of product reduces, and weight saving effectively saves corresponding raw material, can also increase substantially in certain situations product every
The performance of sound, heat-insulated, shockproof etc.；Foaming product pore density produced by the present invention can reach 4.95*108 cells/
Cm3, the significantly larger than existing pore density for capableing of quantity-produced polycarbonate fretting map product；The method of the present invention scope of application
Broadness, simple process when producing in super-critical fluid injection machine is easy to operate, and the processing performance and product after masterbatch addition are most
Whole performance is stablized；The process employs lower dwell pressure and shorter dwell time, lower dwell pressure and micropore are long
Big two aspects collective effect realizes the feeding of material, reduces the regular injection product because of caused by higher dwell pressure in the process
Therefore internal stress eliminate or reduces and bring product buckling deformation problem.
Detailed description of the invention
Fig. 1 is the scanning electron microscope (SEM) photograph of foaming product internal microcellular structure made from the embodiment of the present invention 1；
Fig. 2 is the scanning electron microscope (SEM) photograph of foaming product internal microcellular structure made from comparative example 1 of the present invention.
Specific embodiment
Technical solution of the present invention is described further combined with specific embodiments below.
In terms of raw material, the PC plastic melt flow volume rate used be 6.0cm3/10min (573K, 1.2Kg,
ISO1133), the melt flow volume rate of ABS is 3.2cm3/ 10min's (473K, 5.0Kg, ASTM D-1238), PEN is molten
Body flow volume rate is 5.0cm3/ 10min (573K, 1.2Kg, ISO1133), raw material used in the method for the present invention are equal
It is commercially available.Wherein, foaming agent be preferably azodicarbonamide resistant to high temperature and three diazanyl s-triazine be in mass ratio 2: 1 it is compound
Object, for blowing promotor using the zinc oxide for analyzing pure grade, the partial size of the nano particles such as nano-titanium dioxide and nano silica is equal
Within 100 nanometers.
Embodiment 1
The present embodiment is that (foaming) modified master is added in polycarbonate simultaneously using supercritical fluid as foaming agent
To prepare the specific implementation process of the polycarbonate fretting map injected articles with optimization microcellular structure.Equipment aspect needs one
Platform have supercritical fluid function of injecting injector (for example, commercialized MUCELL fretting map injection (mo(u)lding) machine) and commonly
Extruder, the mold used be standard tensile batten, for raw material mixing extruder can be single screw rod or double-screw type
's.
The specific implementation step of embodiment 1:
Firstly, preparing modified master: after weighing drying: ABS matrix 30KG, ABS-g-MAH10KG, nano-titanium dioxide
5KG, PEN5KG, SEBS5KG, light stabilizer 1KG, antioxidant 1010 1KG, will be another after mixing after these raw material dryings
Silane coupling agent 1KG is added and is put into plastic extruder and forms masterbatch after melt pelletization；
Secondly, preparing mixed material: weigh: polycarbonate 99KG, modified master 1KG are prepared into mixing after mixing
Material；
Quality of item is accounted for finally, being passed through as continuous production fretting map injected articles after 1% supercritical nitrogen.
Tensile property test is carried out to polycarbonate fretting map product made from embodiment 1, test result is shown in Table 1, and right
Its pore density and size are counted, and are also found among table 1.Meanwhile to the microcellular structure of the polycarbonate fretting map product
SEM characterization is carried out, result is as shown in Figure 1.
In order to be illustrated to technical effect of the invention, comparative example 1 is in addition listed, comparative example 1 is not in poly- carbonic acid
Modified master is added in ester, other preparation conditions and preparation process are the same manner as in Example 1.To poly- carbonic acid obtained by comparative example 1
Ester fretting map product carries out tensile property test, and test result is shown in Table 1, and counts to its pore density and size, also arranges
Among table 1.Meanwhile SEM characterization is carried out to the microcellular structure of the polycarbonate fretting map product, result is as shown in Figure 2.
From the point of view of the result shown by the table 1, compared to comparative example 1, the resulting polycarbonate fretting map product of embodiment 1
Pore density increases substantially, and the decline of micropore average-size is obvious, and the tensile strength and elongation at break of product are because of micropore knot
The improvement of structure and promoted.
From Fig. 1 and Fig. 2, it will be obvious that, polycarbonate made from modified master is added in embodiment 1 in polycarbonate
Have high pore density and pore size smaller inside fretting map product.
Embodiment 2
The present embodiment is that (foaming) modified master is added in polycarbonate simultaneously using supercritical fluid as foaming agent
To prepare the specific implementation process of the polycarbonate fretting map injected articles with optimization microcellular structure.Equipment aspect needs one
Platform has the extruder and the common extruder for raw material mixing of supercritical fluid function of injecting, for squeezing for raw material mixing
Machine can be single screw rod or double-screw type out, and the extrusion machine head port mould for product molding is rectangle, the extrusion finally obtained
Product is the sheet material of 2mm thickness.
The specific implementation step of embodiment 2:
Firstly, preparing modified master: after weighing drying: ABS matrix 50KG, ABS-g-MAH50KG, nano silica
50KG, PEN20KG, EMA20KG, light stabilizer 5KG, antioxidant 1010 5KG, by after these raw material dryings after mixing
Silane coupling agent 5KG is separately added and is put into plastic extruder and forms masterbatch after melt pelletization；
Secondly, preparing mixed material: weigh: polycarbonate 90KG, modified master 10KG are prepared into mixing after mixing
Material；
Quality of item is accounted for finally, being passed through continuously to give birth to after 0.1% supercritical nitrogen and 0.1% supercritical carbon dioxide
Produce Microcellular foam extrusion product.
Tensile property test is carried out to polycarbonate fretting map product made from embodiment 2, test result is shown in Table 1, and right
Its pore density and size are counted, and are also found among table 1.
In order to be illustrated to technical effect of the invention, comparative example 2 is in addition listed, comparative example 2 is not in poly- carbonic acid
Modified master is added in ester, other preparation conditions and preparation process are the same manner as in Example 1.To poly- carbonic acid obtained by comparative example 2
Ester fretting map product carries out tensile property test, and test result is shown in Table 1, and counts to its pore density and size, also arranges
Among table 1.
From the point of view of the result shown by the table 1, compared to comparative example 2, the resulting polycarbonate fretting map product of embodiment 2
Pore density increases substantially, and pore size decline is obvious, and the tensile strength and elongation at break of product are because of microcellular structure
Improve and is promoted.
Embodiment 3
The present embodiment is to process to have optimization micropore knot using supercritical fluid and polycarbonate foaming concentrate combination method
The specific implementation process of structure fretting map injected articles.Equipment aspect needs the injection with supercritical fluid function of injecting
Machine (for example, commercialized MUCELL fretting map injection (mo(u)lding) machine) and common extruder, the mold used are standard tensile sample
Item, the extruder for raw material mixing can be single screw rod or double-screw type.
The specific implementation step of embodiment 3:
Firstly, preparing foaming concentrate: after weighing drying: ABS matrix 30KG, ABS-g-MAH10KG, nano-titanium dioxide
5KG, SEBS5KG, light stabilizer 1KG, antioxidant 1010 1KG, azodicarbonamide 4KG resistant to high temperature, three diazanyls equal three
Silane coupling agent 1KG will separately be added after mixing and be put into plastic extruder by piperazine 2KG, zinc oxide 44G after these raw material dryings
Masterbatch is formed after middle melt pelletization；
Secondly, preparing mixed material: weigh: polycarbonate 90KG, foaming concentrate 5KG, PEN5KG are prepared after mixing
Resulting mixture material；
Quality of item is accounted for finally, being passed through as continuous production fretting map injected articles after 1% supercritical carbon dioxide.
Tensile property test is carried out to polycarbonate fretting map product made from embodiment 3, test result is shown in Table 1, and right
Its pore density and size are counted, and are also found among table 1.
From the point of view of the result shown by the table 1, compared to embodiment 1, the pore density of 5 gained product of embodiment is more mentioned
Height, pore size decline is obvious, and the tensile strength and elongation at break of product are promoted because of the improvement of microcellular structure.
Embodiment 4
The present embodiment is to process to have optimization micropore knot using supercritical fluid and polycarbonate foaming concentrate combination method
The specific implementation process of structure fretting map injected articles.Equipment aspect, needs one or both common extruder, they can divide
Not or it is provided commonly for the extrusion of raw material mixing and product, they can be single screw rod or double-screw type, be used for product molding
Extrusion machine head port mould be rectangle, the extruded product finally obtained be 2mm thickness sheet material.
The specific implementation step of embodiment 4:
Firstly, preparing foaming concentrate: after weighing drying: ABS matrix 50KG, ABS-g-MAH50KG, nano silica
50KG, E-MA-GMA20KG, light stabilizer 5KG, antioxidant 1010 5KG, azodicarbonamide 8KG resistant to high temperature, three hydrazines
Silane coupling agent 5KG will separately be added after mixing and be put into modeling by base s-triazine 4KG, zinc oxide 104G after these raw material dryings
Masterbatch is formed after melt pelletization in material extruder；
Secondly, preparing mixed material: weigh: polycarbonate 79KG, foaming concentrate 1KG, PEN20KG make after mixing
Standby resulting mixture material；
Finally, being passed through the system of accounting for spells quality continuously to give birth to after 0.1% supercritical nitrogen and 0.1% supercritical carbon dioxide
Produce Microcellular foam extrusion product.
Tensile property test is carried out to polycarbonate fretting map product made from embodiment 4, test result is shown in Table 1, and right
Its pore density and size are counted, and are also found among table 1.
From the point of view of the result shown by the table 1, compared to embodiment 2, the pore density of 4 gained product of embodiment is more mentioned
Height, the decline of micropore average-size is obvious, and the tensile strength and elongation at break of product are mentioned because of the improvement of microcellular structure
It rises.
The result of several products of table 1 compares
。
There is more uniform microcellular structure using polycarbonate microporous foam product made from the method for the present invention, micropore is close
Degree is big, and pore size is small, so that the features such as product shows low density, light-weight, excellent in mechanical performance, has excellent application
Prospect.
Claims (10)
1. a kind of polycarbonate fretting map product, it is characterised in that: the polycarbonate fretting map product internal capillary density is
4.71*107~4.95*108cells/cm3；Micropore average-size is 18~43 μm.
2. a kind of preparation method of polycarbonate fretting map product described in claim 1, it is characterised in that: the method passes through
A certain amount of modified master is added in polycarbonate and forms mixed material, then is passed through into mixed material the desired amount of overcritical
Fluid carries out fretting map injection or extrusion and is made.
3. the preparation method of polycarbonate fretting map product according to claim 2, it is characterised in that: the shooting flow
Body is supercritical nitrogen and/or supercritical carbon dioxide；The intake of supercritical fluid be mixed material gross mass 0.1%~
2%.
4. the preparation method of polycarbonate fretting map product according to claim 2, it is characterised in that: the modified master
By the component of following mass fraction: 30~50 parts of ABS matrix, 10~50 parts of compatibility agent, 5~50 parts of nano particle, enhancing are modified
5~20 parts of material, 5~20 parts of toughening modifying material, 1~5 part of photostability, 1~5 part of antioxidant and 1~5 part of coupling agent are logical
It crosses plastic extruder melt pelletization and is made.
5. the preparation method of polycarbonate fretting map product according to claim 2, it is characterised in that: the modified master
By the component of following mass fraction: 30~50 parts of ABS matrix, 6~18 parts of chemical foaming agent, blowing promotor 0.036~0.052
Part, 10~50 parts of compatibility agent, 5~50 parts of nano particle, 5~20 parts of toughening modifying material, 1~5 part of photostability, antioxidant 1
~5 parts and 1~5 part of coupling agent are made by plastic extruder melt pelletization.
6. the preparation method of polycarbonate fretting map product according to claim 4 or 5, it is characterised in that: the compatibility
Agent is ABS-g-MAH；Enhancing modified material is PEN；Toughening modifying material is SEBS, ethylene methyl acrylate copolymer or second
One of alkene-methyl acrylate-glycidyl methacrylate random terpolymer；Nano particle is nanometer titanium dioxide
Titanium and/or nano silica；Coupling agent is DOW CORNING KH550.
7. the preparation method of polycarbonate fretting map product according to claim 5, it is characterised in that: the foaming agent is
The compound of azodicarbonamide and three diazanyl s-triazine in mass ratio 2: 1, blowing promotor are zinc oxide, and the dosage of zinc oxide is
The 0.9%~1.3% of azodicarbonamide quality.
8. the preparation method of polycarbonate fretting map product according to claim 4, which is characterized in that specifically include as follows
Step:
Step 1, it prepares modified master: by the ABS of formula ratio, compatibility agent, nano particle, enhancing modified material, toughening modifying object
Material, photostability and antioxidant add the coupling agent of formula ratio after being sufficiently mixed, obtained mixture is placed in plastics and is squeezed
Out in machine, modified master is obtained after melt pelletization under certain melting temperature；
Step 2, the desired amount of modified master is added in polycarbonate, obtains mixed material；
Step 3, it is passed through the desired amount of supercritical fluid into mixed material and carries out fretting map injection or the continuous life of extruded product
It produces.
9. the preparation method of polycarbonate fretting map product according to claim 5, which is characterized in that specifically include as follows
Step:
Step 1, prepare modified master: by the ABS of formula ratio, compatibility agent, nano particle, toughening modifying material, chemical foaming agent,
Blowing promotor, photostability and antioxidant add the coupling agent of formula ratio after being sufficiently mixed, obtained mixture is placed in
In plastic extruder, modified master is obtained after melt pelletization under certain melting temperature；
Step 2, the desired amount of modified master, the modified material PEN of enhancing and polycarbonate are mixed, obtains mixed material；
Step 3, it is passed through the desired amount of supercritical fluid into mixed material and carries out fretting map injection or the continuous life of extruded product
It produces.
In extrusion process, melting temperature is 180~190 DEG C.
10. the preparation method of polycarbonate fretting map product according to claim 8 or claim 9, it is characterised in that: in step 2,
The additional amount of the modified master is the 1%~10% of mixed material gross mass.
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| CN112759915A (en) * | 2020-12-28 | 2021-05-07 | 金发科技股份有限公司 | PC/ABS alloy material and preparation method and application thereof |
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| CN103612398A (en) * | 2013-11-27 | 2014-03-05 | 福州大学 | Microporous PC/ABS (Polycarbonate/Acrylonitrile Butadiene Styrene) alloy and preparation method thereof |
| CN107674233A (en) * | 2017-10-19 | 2018-02-09 | 宁波致微新材料科技有限公司 | The preparation method of makrolon microcellular foam material |
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| CN103240884A (en) * | 2013-05-07 | 2013-08-14 | 西北工业大学 | Preparation method of polycarbonate microporous material with bimodal distribution |
| CN103612398A (en) * | 2013-11-27 | 2014-03-05 | 福州大学 | Microporous PC/ABS (Polycarbonate/Acrylonitrile Butadiene Styrene) alloy and preparation method thereof |
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| CN110885471A (en) * | 2019-11-28 | 2020-03-17 | 广东祥雄科学器材实业有限公司 | Production process of SEBS rubber bra pad foaming material |
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Application publication date: 20190322 |