CN107586447A - A kind of dumb light PC/PBT alloy materials and preparation method thereof - Google Patents
A kind of dumb light PC/PBT alloy materials and preparation method thereof Download PDFInfo
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- CN107586447A CN107586447A CN201710755969.3A CN201710755969A CN107586447A CN 107586447 A CN107586447 A CN 107586447A CN 201710755969 A CN201710755969 A CN 201710755969A CN 107586447 A CN107586447 A CN 107586447A
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Abstract
The present invention discloses a kind of dumb light PC/PBT alloy materials and preparation method thereof, and component includes bisphenol A-type PC resin, PBT resin, ABS resin, toughener, compatilizer, delustering agent, ester exchange inhibitor；Each component is blended, melts, extrusion, the obtained PC/PBT alloys of pelletizing.Delustring purpose is realized using each component in the present invention, so as to prepare the low-luster that traditional dumb light PC/PBT alloys are unable to reach, and the not heat endurance of attacking material, suitable for requiring higher field to dumb light.
Description
Technical field：
The present invention relates to field of high polymer material modification, and in particular to a kind of dumb light PC/PBT alloy materials and its system
Preparation Method.
Background technology：
PC resin is as one of five large-engineering plastics, the toughness with excellent mechanical strength and superelevation, and heat resistance
It is good, but its corrosion-resistant, organic solvent-resistant, is not dissolved easily and causes to ftracture；Its mobile performance is poor simultaneously, is not suitable for big
The injection molding of size parts.Polybutylene terephthalate (PBT) resin easily crystallizes, acid corrosion-resistant, organic solvent, heated aqueous
Can be good；And mobility is high, good moldability.PC/PBT alloy materials can gather the speciality of both PC resin and PBT resin, play
Both advantages, make up the deficiency of the two.
Under molten condition, PC and PBT can spontaneous carry out ester exchange reaction, PC-PBT random copolymerizations are formed at boundary
Thing.PC/PBT alloy glossiness prepared by conventional blending is higher, and glossiness is up to 105% under 60 ° of test conditions；High gloss
PC/PBT alloys become inferior position under the conditions of for eliminating light pollution.CN201610301230 discloses a kind of low-luster
PC/PBT alloy materials and preparation method thereof, it is mainly entered by way of adding delustering agent and inorganic filler to PC/PBT alloys
Row delustring；The low gloss disclosed in patent application CN201210292334.1 and CN201310368504.4 for having failed rejected
Degree PC/PBT alloy materials are also to carry out delustring by the mode for the combination for adding delustering agent and inorganic filler.Although delustering agent
Addition with inorganic filler can be effectively reduced the glossiness of PC/PBT alloys really, but required in face of higher dumb light, enter one
The method that step reduces the glossiness of PC/PBT alloys does not have relevant report also.Meanwhile inorganic filler can accelerate alloy more in alkalescence
The decomposition of middle ester group so that the heat endurance of PC/PBT alloy materials declines.Therefore, it is not added with or adds inorganic filler dumb light to change less
The research of property PC/PBT alloy materials is also significant.
The content of the invention
To solve the deficiencies in the prior art, the invention provides a kind of dumb light PC/PBT alloy materials and preparation method thereof.
To realize the goal of the invention of the present invention, high-quality dumb light PC/PBT alloy materials are obtained in the following manner：Add conventional delustering agent；
Utilize ABS resin and the refractive index difference of PBT resin；The epoxide group and PC that toughener POE--g-GMA type elastomers contain
Resin terminal hydroxy group reacts, and forms certain degree of cross linking；Can also using the relatively low POE elastomers of itself glossiness, while toughness reinforcing
Delustring；It is preferred that the viscosity of PC resin and PBT resin, is aided with banburying type screw combinations element, PBT minority phases is made in extrusion
What formation threadiness was even three-dimensional netted in PC majority phases mutually raises distribution greatly, adds reflective difference.
To achieve the above object, the present invention takes following technical scheme：
A kind of dumb light PC/PBT alloy materials, including following parts by weight component：
Further, the number-average molecular weight of the bisphenol A-type PC resin is 1.5 × 104-2.0×104g/mol；300
DEG C/1.2kg under the conditions of melt index be 20-30g/10min.
Further, the polybutylene terephthalate (PBT) resin (PBT) is extruding pipe material grade resins, its inherent viscosity
For 1.2-1.3dl/g.
Further, the acrylonitrile-butadiene-styrene resin (ABS) is big rubber size dumb light type ABS resin.
Further, the toughener is made up of main toughener and auxiliary toughener；Main toughener is Glycidyl methacrylate
Glyceride (POE-g-GMA) grafted ethene-octene copolymer, density 0.87-0.89g/cm3, melted in 190 DEG C/2.16Kg
It is 2-5g/10min to melt index, and GMA grafting rates are 0.5-1.5%；Auxiliary toughener be GMA (GMA)-
Acrylate copolymer, GMA contents are 5-8wt%.
Further, described compatilizer is common for GMA (GMA)-acrylonitrile-styrene (SAN)
The content of polymers, wherein GMA (GMA) is 1-5wt%.
Further, described delustering agent is cross-linking type acrylonitrile-styrene microballoon.
Further, described ester exchange inhibitor is phosphorous acid, sodium dihydrogen phosphate, disodium hydrogen phosphate, resorcinol phosphorus
At least one of acid esters.
A kind of preparation method of dumb light PC/PBT alloy materials, comprises the following steps：
(1) by bisphenol A-type PC resin, PBT resin, ABS resin, toughener, compatilizer, delustering agent, ester exchange inhibitor
Mixing 2-5 minutes in homogenizer are added to by proportioning, are prepared into mixed material；
(2) mixed material is added in engagement type parallel equidirectional two-screw extruder, through melting, extruding, pelletizing, obtained mute
Light PC/PBT alloys；Wherein 220-250 DEG C of extruder barrel temperature, vacuum pressure are -0.04--0.1MPa.
Further, the double screw extruder has used banburying type screwing element in screw combinations.
Wherein, extruding pipe material grade resins, big particle diameter dumb light type ABS resin, cross-linking type acrylonitrile-styrene microballoon are equal, close
Refining type screwing element belongs to generic noun well known to those skilled in the art.
Banburying type screwing element is also known as tension type element, and it implements gentle shearing force to melt, allows highly viscous resin
Threadiness is formed in the presence of stretching and mutually raises structure greatly, or even forms bicontinuous structure, without forming chondritic.
The beneficial effects of the present invention are：
1st, the present invention reaches delustring purpose using cross-linking type acrylonitrile-styrene microballoon；Utilize ABS resin and PBT simultaneously
The refractive index difference of resin, reach the purpose of further delustring；The toughener POE--g-GMA type elastomers of addition, epoxy radicals
Group can react with PC resin terminal hydroxy group, form certain degree of cross linking, reach the purpose of further delustring；POE elastomers light in itself
Damp degree is relatively low, with its toughness reinforcing PC/PBT alloys, may also function as the effect of delustring；The viscosity of preferable PC resin and PBT resin, it is auxiliary
Make PBT is a small number of mutually to form even three-dimensional netted big of threadiness in PC majority phases and mutually raise point with banburying formula double screw extruder
Cloth, increase the reflective difference of PC phases and PBT phases with this, increase dullness.In summary method can reach traditional dumb light PC/PBT
The low-luster that alloy is unable to reach.
2nd, the present invention has the advantages of raw material is easy to get, is easy to operate.Preparation method is workable compared with conventional squeezing, easily
It is high in large-scale industrial production, product cost；The present invention further improves existing low-luster PC/PBT alloy materials
Deficiency, glossiness, and the not heat endurance of attacking material are further reduced, suitable for requiring higher field to dumb light.
Figure of description
Fig. 1 is the SEM figures that embodiment 1 etches away PBT phases；
Fig. 2 is the SEM figures that embodiment 2 etches away PBT phases；
Fig. 3 is the SEM figures that embodiment 3 etches away PBT phases.
Embodiment：
To be best understood from the present invention, with reference to embodiment, the present invention is described further.
The dumb light PC/PBT alloy materials in embodiment are prepared according to following preparation method, embodiment 1-3 each components are matched somebody with somebody
Than as shown in Table 1：
By 50-60 part bisphenol A-types PC resin, 25-45 parts PBT resin, 5-15 parts ABS resin, 3-6 parts toughener, 1-3 parts
Compatilizer, 1-4 parts delustering agent, 0.2-0.6 parts antioxidant, 0.2-0.6 parts lubricant, 0.1-0.5 parts ester exchange inhibitor are together
Mixing 2-5 minutes in homogenizer are added to, wherein, rotating speed 300-400rpm；Mixed material is added engagement type flat
In row parallel dual-screw extruding machine, through melting, extruding, pelletizing, dumb light PC/PBT alloys are obtained；Wherein, extruder barrel temperature
220-250 DEG C, vacuum be -0.04--0.1MPa.Screw speed is according to PC resin, ABS resin and PBT resin in processing temperature
Under rheological behavior determine, keep PC resin and the PBT resin viscosity under the rotating speed to approach, raised in favor of forming big PBT phases.
As shown in figure 1, a diameter of 35mm of parallel equidirectional two-screw extruder screw, screw slenderness ratio 40.
The composition of the raw material of table one
For the effect of the checking present invention, the SEM that PBT phases are etched away to the embodiment 1-3 PC/PBT alloy materials prepared schemes
Test result as Figure 1-3, can determine whether PC/PBT alloy material phase morphologies, with the increase of PBT contents, wherein PBT phases shape
State gradually has the structure that scattered rod-like fibre structure becomes three-dimensional network shape, and PBT's mutually raises gradual increase.
By the density of above-described embodiment 1-3 dumb light PC/PBT alloy materials prepared, tensile strength, bending modulus, cantilever
The performances such as beam notch impact strength, vicat softening point temperature, glossiness are detected, and its examination criteria and performance test results are such as
Shown in table two：
The dumb light PC/PBT alloy property indexs of table two
As shown in table two, 1-3 of the embodiment of the present invention prepare dumb light PC/PBT alloys have low-down glossiness and compared with
High heat endurance.Wherein, embodiment 3 has relatively low matte effect.And its density, tensile strength, bending modulus,
The correlated performances such as cantilever beam breach, impact strength also show its superior performance, can meet it in association area completely
Use standard.
It is above-mentioned that the preferred embodiment of the present invention is described as to embodiment.The invention is not restricted to embodiment here, sheet
Art personnel do not depart from improvement that scope made and modification all should be in the present invention according to the announcement of the present invention
Protection domain in.
Claims (10)
- A kind of 1. dumb light PC/PBT alloy materials, it is characterised in that：Including following parts by weight component：Bisphenol A-type PC resin 50-60 parts；Polybutylene terephthalate (PBT) resin（PBT）25-45 parts；Acrylonitrile-butadiene-styrene resin（ABS）5-15 parts；Toughener 3-6 parts；Compatilizer 1-3 parts；Delustering agent 1-4 parts；Ester exchange inhibitor 0.1-0.5 parts.
- A kind of 2. dumb light PC/PBT alloy materials according to claim 1, it is characterised in that：The bisphenol A-type PC resin Number-average molecular weight be 1.5 × 104-2.0×104 g/mol；Melt index under the conditions of 300 DEG C/1.2 kg is 20-30 g/ 10min。
- A kind of 3. dumb light PC/PBT alloy materials according to claim 1, it is characterised in that：The poly terephthalic acid fourth Terephthalate resin（PBT）For extruding pipe material grade resins, its inherent viscosity is 1.2-1.3 dl/g.
- A kind of 4. dumb light PC/PBT alloy materials according to claim 1, it is characterised in that：The acrylonitrile-butadiene- Styrene resin（ABS）For big rubber size dumb light type ABS resin.
- A kind of 5. dumb light PC/PBT alloy materials according to claim 1, it is characterised in that：The toughener is by main toughness reinforcing Agent and auxiliary toughener composition；Main toughener is GMA (POE-g-GMA）Grafted ethene-octene copolymer Thing, density are 0.87-0.89 g/cm3, in 190 DEG C/2.16 Kg, melt index is that 2-5 g/10 min, GMA grafting rates are 0.5-1.5%；Auxiliary toughener is GMA（GMA）- acrylate copolymer, GMA contents are 5-8 wt%.
- A kind of 6. dumb light PC/PBT alloy materials according to claim 1, it is characterised in that：Described compatilizer is methyl Glycidyl acrylate（GMA）- acrylonitrile-styrene（SAN）Copolymer, wherein GMA（GMA） Content be 1-5 wt%.
- A kind of 7. dumb light PC/PBT alloy materials according to claim 1, it is characterised in that：Described delustering agent is crosslinking Type acrylonitrile-styrene microballoon.
- A kind of 8. dumb light PC/PBT alloy materials according to claim 1, it is characterised in that：Described ester exchange inhibitor For at least one of phosphorous acid, sodium dihydrogen phosphate, disodium hydrogen phosphate, resorcin phosphate.
- 9. prepare a kind of method of dumb light PC/PBT alloy materials as described in claim any one of 1-8, it is characterised in that：Bag Include following steps：（1）By bisphenol A-type PC resin, PBT resin, ABS resin, toughener, compatilizer, delustering agent, ester exchange inhibitor by matching somebody with somebody Than being added to mixing 2-5 minutes in homogenizer, mixed material is prepared into；（2）Mixed material is added in engagement type parallel equidirectional two-screw extruder, through melting, extruding, pelletizing, obtains dumb light PC/PBT alloys；Wherein 220-250 DEG C of extruder barrel temperature, vacuum pressure are -0.04--0.1 MPa.
- A kind of 10. preparation method of dumb light PC/PBT alloy materials according to claim 9, it is characterised in that：It is described double Screw extruder has used banburying type screwing element in screw combinations.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109265955A (en) * | 2018-08-28 | 2019-01-25 | 佳易容相容剂江苏有限公司 | A kind of high-impact high durable PC/PBT resin combination and preparation method thereof |
| CN109337327A (en) * | 2018-08-27 | 2019-02-15 | 南京运昶高分子材料有限公司 | A kind of weather-proof dumb light PC/ASA alloy material |
| CN111070840A (en) * | 2019-12-25 | 2020-04-28 | 广东万事杰塑料科技有限公司 | Spraying-free matte composite film and preparation and application thereof |
| CN111393819A (en) * | 2019-12-19 | 2020-07-10 | 重庆会通科技有限公司 | High-fluidity, heat-resistant and corrosion-resistant polyester alloy composite material and preparation method and application thereof |
| CN113861652A (en) * | 2021-08-26 | 2021-12-31 | 金发科技股份有限公司 | PC/PBT alloy material and preparation method and application thereof |
| CN116823820B (en) * | 2023-08-29 | 2023-11-07 | 青岛东冶耐火材料有限公司 | Aluminum-carbon integral stopper rod contour bending detection method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109337327A (en) * | 2018-08-27 | 2019-02-15 | 南京运昶高分子材料有限公司 | A kind of weather-proof dumb light PC/ASA alloy material |
| CN109337327B (en) * | 2018-08-27 | 2021-05-07 | 南京运昶高分子材料有限公司 | Weather-proof matte PC/ASA alloy material |
| CN109265955A (en) * | 2018-08-28 | 2019-01-25 | 佳易容相容剂江苏有限公司 | A kind of high-impact high durable PC/PBT resin combination and preparation method thereof |
| CN109265955B (en) * | 2018-08-28 | 2020-11-10 | 佳易容相容剂江苏有限公司 | High-impact high-weather-resistance PC/PBT resin composition and preparation method thereof |
| CN111393819A (en) * | 2019-12-19 | 2020-07-10 | 重庆会通科技有限公司 | High-fluidity, heat-resistant and corrosion-resistant polyester alloy composite material and preparation method and application thereof |
| CN111070840A (en) * | 2019-12-25 | 2020-04-28 | 广东万事杰塑料科技有限公司 | Spraying-free matte composite film and preparation and application thereof |
| CN113861652A (en) * | 2021-08-26 | 2021-12-31 | 金发科技股份有限公司 | PC/PBT alloy material and preparation method and application thereof |
| CN116823820B (en) * | 2023-08-29 | 2023-11-07 | 青岛东冶耐火材料有限公司 | Aluminum-carbon integral stopper rod contour bending detection method |
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Address after: High tech Zone Hefei city Anhui province 230088 City Road No. 2 Applicant after: New material Limited by Share Ltd Address before: High tech Zone Hefei city Anhui province 230088 City Road No. 2 Applicant before: Hefei Orinko Plastics Group Co., Ltd. |
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