CN104031374B - Polycarbonate compositions and preparation method thereof - Google Patents

Polycarbonate compositions and preparation method thereof Download PDF

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Publication number
CN104031374B
CN104031374B CN201410256501.6A CN201410256501A CN104031374B CN 104031374 B CN104031374 B CN 104031374B CN 201410256501 A CN201410256501 A CN 201410256501A CN 104031374 B CN104031374 B CN 104031374B
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polycarbonate compositions
polycarbonate
component
mixture
parts
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CN104031374A (en
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周拥仔
吴宪
何征
刘则安
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Huizhou Wote Advanced MaterialS Co Ltd
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Huizhou Wote Advanced MaterialS Co Ltd
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    • 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
    • B29B9/12—Making granules characterised by structure or composition
    • B29B9/14—Making granules characterised by structure or composition fibre-reinforced
    • 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
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/58—Component parts, details or accessories; Auxiliary operations
    • B29B7/72—Measuring, controlling or regulating
    • 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
    • B29B9/12—Making granules characterised by structure or composition
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • 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
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92609—Dimensions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92676—Weight
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The invention discloses a kind of polycarbonate compositions and preparation method thereof.This polycarbonate compositions comprises the component of following weight part: polycarbonate 75 ~ 86 parts, packing material 3 ~ 5 parts, 10 ~ 15 parts, glass fibre, fire retardant 0.1 ~ 1 part, toughner 0.5 ~ 3 part, primary antioxidant 0.1 ~ 0.5 part, 0.1 ~ 0.5 part, auxiliary type oxidation inhibitor, other auxiliary agents 0.1 ~ 2 part.Polycarbonate compositions of the present invention adopts strongthener, toughner and processing aid collaborative to polycarbonate modified, polycarbonate compositions is had good stability, intensity are high, that resist warping and surface gloss good, there is excellent anti-high speed puncture and impact and toughness.Simultaneously containing having good flame retardant properties.

Description

Polycarbonate compositions and preparation method thereof
Technical field
The invention belongs to technical field of polymer materials, particularly a kind of polycarbonate compositions and preparation method thereof.
Background technology
Polycarbonate (PC, Polycarbonate) resin is a kind of amorphism thermoplastic polymer, its shock strength is high, good rigidly, height is heat-resisting, glossiness good, good stability of the dimension, electrical apparatus insulation and creep resistance are excellent, but its processing flowability is poor, not stress crack resistant.
Enhancing PC rigidity and thermotolerance all improve a lot than PC, and molding shrinkage is little, is mainly used in some load bearing components, instrument outer cover and electronic apparatus shell etc.Although the flame retardant resistance of PC is better than general thermoplastic polymer in addition, but still be difficult to meet the requirement of some Application Areas to flame retardant properties, therefore must carry out flame-retardant modified to PC strongthener.Some business-like flame-retardant glassfiber reinforced PCs, fire-retardant mineral are had to strengthen PC and flame-proof glass fibre, mineral mixing enhancing PC product at present, the physical strength of this series products, rigidity, fire-retardant and heat-resisting good, but do not reach at the impact resistance of some special occasions and require and can not meet non-halogen requirement.Domesticly disclose a kind of polycarbonate compositions, said composition has higher mechanical property, and is halogen-free flameproof, but in shock-resistant Shortcomings, IZOD notched Izod impact strength only has 5 ~ 13KJ/m 2.Domestic another kind of polycarbonate compositions adopts organic rigid-particle high density polyethylene(HDPE) to be toughner, and its processing characteristics is excellent, notched Izod impact strength is high, can reach 20KJ/m 2above, and feature that stress crack resistance performance good insensitive to breach, but said composition is not fire-retardant, and toughness is high not enough comparatively speaking.
Summary of the invention
The object of the invention is to the above-mentioned deficiency overcoming prior art, a kind of polycarbonate compositions and preparation method thereof be provided, existing polycarbonate compositions is shock-resistant to solve, the technical problem of toughness relative mistake.
In order to realize foregoing invention object, technical scheme of the present invention is as follows:
A kind of polycarbonate compositions, comprises the component of following weight part:
And a kind of preparation method of polycarbonate compositions, comprises the following steps:
Each component is taken respectively according to above-mentioned polycarbonate compositions;
The component taken except fiberglass component is carried out mixing treatment, obtains mixture;
Added by main for described mixture spout, fiberglass component adds from side material mouth and carries out mixed melting and extrude process.
Compared with prior art, above-mentioned polycarbonate compositions adopts strongthener, toughner and processing aid collaborative to polycarbonate modified, makes polycarbonate compositions have following technique effect:
(1) cost performance is high, and the properties such as mechanical property, physicals (comprising shock resistance, the puncture of anti-high speed impact property, resistance to warpage performance and dimensional stabilizing etc.), processing characteristics are balanced;
(2) there is excellent rigidity, can be used for preparing high temperature resistant products;
(3) its low warpage properties energy and high-gloss surface is given by glass fibre, weighting material component;
(4) water-intake rate is low, excellent size stability;
(5) toughner all can purchased on the market, and obtained composition has the feature of superhigh tenacity and the anti-high speed puncture impact property of excellence;
(6) there is good flame retardant resistance.
Above-mentioned polycarbonate compositions preparation method melt extrudes after only each component need being carried out mixing treatment, its preparation method can make each component disperses evenly and act synergistically, while realizing the above-mentioned excellent properties of polycarbonate compositions of the present invention, make its stable performance.In addition, its preparation method technique is simple, and condition is easily controlled, with low cost, and feature low for equipment requirements, is suitable for suitability for industrialized production.
Embodiment
In order to make the technical problem to be solved in the present invention, technical scheme and beneficial effect clearly understand, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The polycarbonate compositions that the embodiment of the present invention provides a kind of superhigh tenacity halogen-free flameproof to strengthen.Said composition comprises following components by weight percent:
Particularly, above-mentioned polycarbonate is as matrix component, and in a preferred embodiment, conventional bisphenol-a polycarbonate selected by this polycarbonate, and its relative density is 1.20 ~ 1.22g/cm 3, vicat softening temperature is 145 ~ 155 DEG C, and melting index is 10 ~ 30g/min.This preferred polycarbonate can make final polycarbonate compositions target mechanical property better.In a particular embodiment, the content of this polycarbonate can be the arbitrary weight part in 60 ~ 85 parts.
Above-mentioned packing material and glass fibre have the effect reducing polycarbonate compositions warpage performance and improve its finish plate.In order to make polycarbonate compositions warpage performance and have high gloss, in a preferred embodiment, wherein one or more such as talcum powder, mica, glass microballon selected by above-mentioned packing material.
In a particular embodiment, this talcous particle diameter is 2000 ~ 6000 orders.
In another specific embodiment, this mica is mica powder, and particle diameter is 1000 ~ 3000 orders.
In another specific embodiment, this glass microballon is solid or hollow, and particle diameter is 10 ~ 80 microns.
In further preferred embodiment, this talcous particle diameter is 2000 ~ 6000 orders, and mica is mica powder, and particle diameter is 1000 ~ 3000 orders, and glass microballon is solid or hollow, and particle diameter is 10 ~ 80 microns.
In one embodiment, the content of packing material can be the weight parts such as 3 parts, 3.5 parts, 4 parts, 4.5 parts, 5 parts.
In a preferred embodiment, above-mentioned glass fibre selects E type alkali-free continuous glass fibre or chopped strand.
In a particular embodiment, the diameter of this E type alkali-free continuous fibre is 9 ~ 17 microns, and linear density is 2000 ~ 2400tex.
In another specific embodiment, the diameter of this chopped strand is 9 ~ 17 microns, length 2 ~ 6mm.
In another specific embodiment, the diameter of this E type alkali-free continuous fibre is 9 ~ 17 microns, and linear density is 2000 ~ 2400tex, and the diameter of chopped strand is 9 ~ 17 microns, length 2 ~ 6mm.
In one embodiment, the content of glass fibre can be the weight parts such as 10 parts, 12 parts, 15 parts, 18 parts, 20 parts, 22 parts, 25 parts, 28 parts, 30 parts.
The mixture, 2 of the mixture of potassium phenylsulphonyl benzene sulfonate (KSS) and cladded type tetrafluoroethylene, perfluorobutyl potassium (PPFBS) and cladded type tetrafluoroethylene preferably used by above-mentioned fire retardant; 4; one or more in the mixture of 5-trichlorobenzene sodium sulfonate (STB) and cladded type tetrafluoroethylene; KSS is as the F-570 of U.S. Arichem; PPFBS is if the FR-2025 of 3M company, STB are as the STB-FR of U.S. Arichem.The SN3300 of cladded type tetrafluoroethylene as Shangneng Polymer Tech Co., Ltd., Guangzhou, the DB105 etc. of upper Haikang Rui Si Chemical Co., Ltd..
In one embodiment, the content of fire retardant can be the weight parts such as 0.1 part, 0.2 part, 0.3 part, 0.4 part, 0.5 part, 0.6 part, 0.7 part, 0.8 part, 0.9 part, 1.0 parts.
Above-mentioned toughner and other components act synergistically, and give polycarbonate compositions superhigh tenacity.In order to give the toughness of this polycarbonate compositions excellence, in a preferred embodiment, this high acid value polyolein fiber, wherein acid esters is 40 ~ 80KOHmg/g.This toughner utilizes catalysis technique activity in production, and it also can be used as brightening agent, releasing agent and dispersion agent etc., as the 1105A of Mitsui Chemicals.
In one embodiment, the content of fire retardant can be the weight parts such as 0.5 part, 0.8 part, 1 part, 1.2 parts, 1.5 parts, 1.8 parts, 2.0 parts, 2.3 parts, 2.5 parts, 2.8 parts, 3.0 parts.
Above-mentioned primary antioxidant is chemical name is four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester (trade(brand)name IRGANOX1010) or N, one or both among N '-hexa-methylene two (3,5-di-t-butyl-4-hydroxybenzene propionic acid amide) (commodity are called IRGANOX1098).
In one embodiment, the content of primary antioxidant can be the weight part such as 0.1 part, 0.2 part, 0.3 part, 0.4 part, 0.5 part.
Above-mentioned auxiliary type oxidation inhibitor is chemical name is three (2,4-di-tert-butyl-phenyl) one or both among phosphorous acid ester (trade(brand)name IRGANOX168) or two (2,4-di-t-butyl) pentaerythritol diphosphites (commodity are called IRGANOX168).
In one embodiment, the content of auxiliary type oxidation inhibitor can be the weight part such as 0.1 part, 0.2 part, 0.3 part, 0.4 part, 0.5 part.
Other auxiliary agents above-mentioned comprise the processing aids such as one or more of the additives such as purple lubricant, dispersion agent.Wherein, lubricant can select one or more among pentaerythritol stearate (PETS), ethylene bis stearamide (EBS) etc.; Dispersion agent can select 5# white mineral oil.
Above-mentioned polycarbonate compositions adopts strongthener, toughner and processing aid collaborative to polycarbonate modified, polycarbonate compositions is had good stability, intensity are high, that resist warping and surface gloss good, have that excellent anti-high speed puncture is impacted, toughness.Simultaneously containing having good flame retardant properties.In addition, by the kind of each component and the control of consumption, polycarbonate compositions target capabilities can be made to reach best.
Correspondingly, the embodiment of the present invention additionally provides the preparation method of above-mentioned polycarbonate compositions.The method comprises the steps:
S01. each component is taken respectively according to above-mentioned polycarbonate compositions;
S02. the component taken by step S01 except fiberglass component carries out mixing treatment, obtains mixture;
S03. the main spout of the mixture obtained by step S02 adds, and fiberglass component adds from side material mouth and carries out mixed melting and extrude.
Particularly, the polycarbonate compositions in above-mentioned steps S01 and its each component preferred content and kind as described above, in order to save length, do not repeat them here.
Mixing treatment in above-mentioned steps S02 can be carried out by mixing method conveniently, as stirred, as long as each component mixed.
In above-mentioned steps S03, mixture major ingredient mouth adds, glass fibre from side material mouth add carry out melting mixing after extrude.Melt extrude and screw machine can be adopted to melt extrude, as dual-screw-stem machine.After each material is admitted in screw machine, each material is plastified under the effect of high pressure and high temperature, melting, during this period, has an effect between each component.In a preferred embodiment, these processing condition melt extruded for: described in the temperature that melt extrudes be 100 ± 10 DEG C → 250 ± 10 DEG C → 260 ± 5 DEG C → 260 ± 5 DEG C → 260 ± 5 DEG C → 280 ± 5 DEG C → 280 ± 5 DEG C → 260 ± 5 DEG C → 260 ± 5 DEG C → 260 ± 5 DEG C → 260 ± 5 DEG C → 265 ± 5 DEG C.This melt extrudes process and can adopt twin screw extruder to realize.Melt extrude the setting of temperature by this, what can make to disperse between each component is more even, and act synergistically between each component the better effects if played, thus it is better to give the target capabilities extruding product polycarbonate composition.
Certainly, after melt extruding, also can comprise tie rod, cooling, pelletizing and the treatment steps such as drying are carried out to particle.
Above-mentioned polycarbonate compositions preparation method can make each component disperses evenly and act synergistically, and while realizing the above-mentioned excellent properties of polycarbonate compositions of the present invention, makes its stable performance.In addition, its preparation method technique is simple, and condition is easily controlled, with low cost, and feature low for equipment requirements, is suitable for suitability for industrialized production.
Now for polycarbonate compositions component concentration and preparation method, the present invention is further elaborated.
Wherein, in following each embodiment, conventional bisphenol-a polycarbonate selected by polycarbonate, and its relative density is 1.20 ~ 1.22g/cm 3, vicat softening temperature is 145 ~ 155 DEG C, and melting index is the polycarbonate of 10 ~ 30g/min.
Glass fibre selects E type alkali-free continuous glass fibre or chopped strand, and wherein the diameter of continuous fibre is 9 ~ 17 microns, and linear density is 2000 ~ 2400, as the 988A of megalith group, and the T635B etc. of Mount Taishan glass; The diameter of chopped strand is 9 ~ 17 microns, length 2 ~ 6mm, as the 995-10C of OWENS CORNING, 510 of megalith group,
The mixture, 2 of the mixture of potassium phenylsulphonyl benzene sulfonate (KSS) and cladded type tetrafluoroethylene, perfluorobutyl potassium (PPFBS) and cladded type tetrafluoroethylene selected by fire retardant; 4; 5-trichlorobenzene sodium sulfonate (STB) and one or more in the mixture of cladded type tetrafluoroethylene; KSS is as the F-570 of U.S. Arichem; PPFBS is if the FR-2025 of 3M company, STB are as the STB-FR of U.S. Arichem.The SN3300 of cladded type tetrafluoroethylene as Shangneng Polymer Tech Co., Ltd., Guangzhou, the DB105 of upper Haikang Rui Si Chemical Co., Ltd..
The high acid value polyolein fiber that in embodiment 1-6, toughner A selects catalysis technique to produce, wherein acid esters is 40 ~ 80KOHmg/g, and this toughner also can be used as brightening agent, releasing agent and dispersion agent etc., as the 1105A of Mitsui Chemicals.In comparative example, toughner B selects conventional MBS (MBS).
The concrete kind that primary antioxidant, auxiliary type oxidation inhibitor, other selection of auxiliary are mentioned above.
Embodiment 1-6:
Provide a kind of polycarbonate compositions and preparation method thereof.Each component contained by this polycarbonate compositions and the content of each component vide infra table 1, and its preparation method is as follows:
By PC, glass fibre, weighting material, fire retardant, toughner A, oxidation inhibitor, the formula rate that other auxiliary agents strengthen PC composition according to halogen-free flameproof mixes in blender, make after each component is fully uniformly dispersed, then drop in twin screw extruder, and glass fibre adds in the mode of side feeding in the stage casing of twin screw extruder, through melt extruding granulation, extrusion temperature (100 ± 10) ~ (250 ± 10) ~ (260 ± 5) ~ (260 ± 5) ~ (260 ± 5) ~ (285 ± 5) ~ (285 ± 5) ~ (260 ± 5) ~ (260 ± 5) ~ (260 ± 5) ~ (260 ± 5) ~ (265 ± 5) DEG C.
Comparative example 1,2:
Provide a kind of polycarbonate compositions and preparation method thereof.Each component contained by this polycarbonate compositions and the content of each component vide infra table 1, and its preparation method is with reference to the preparation method of polycarbonate compositions in embodiment 1-6.
Performance test:
Carry out preparing polycarbonate compositions in above-described embodiment 1 to embodiment 6 and comparative example 1,2 respectively as the performance test in table 2.Correlated performance testing method is carried out according to GB or enterprise's mark.Correlated performance test result is as shown in hereafter table 2.
Table 1
Table 2
As can be seen from table 2 embodiment 1-6, the optimum formula of embodiment of the present invention polycarbonate compositions is defined as embodiment 3.
As can be seen from embodiment 1 ~ 6:
(1) addition of toughner A is larger, material shock-resistant higher, and compare with comparative example 1, shock-resistant is its 2 ~ 4 times.
(2) glass and weighting material content higher time, intensity, the rigidity of material are higher, but impact can decline to some extent, but still are 3 times of high left and right of comparative example 1; In packing material, talcous shock-resistant aspect can be better than mica, but intensity aspect can be more slightly lower than mica.
(3) elongation at break of material is higher, is 2 ~ 3 times of common enhancing PC, illustrates that its ductility is very good.
(4) thermal distortion of material all remains on more than 120 DEG C, and fire-retardantly all can reach UL94-1.6mmV0; Modulus in flexure strengthens compared with PC with common, and difference is little, illustrate toughner A increase substantially reinforced polycarbonate composition impact-resistant while, rigidity can not decline.
As can be seen from comparative example 1,2:
(1) the toughner B adding general category strengthens to halogen-free flameproof the effect that PC material can not show a candle to toughner A in shock-resistant, and comparatively large on fire-retardant impact, is difficult to reach UL94-1.6mmV0.
(2) comparative example 2 is compared with embodiment 3, and the halogen-free flameproof not adding weighting material strengthens PC composition compared with interpolation weighting material, and impact and can decline on the contrary, down ratio reaches 25%, and other performances then change less.
As can be seen from embodiment 1 ~ 6 and comparative example 1 and 2, when glass fiber content is lower and toughner A content is higher, article surface is substantially without floating fine, and illustrate that toughner A content is higher, surface gloss is better; And when glass fiber content is higher or toughner A content is constantly lower, article surface has less floating fibre; Compared with not adding the composition of weighting material, but the floating fibre adding weighting material glass fiber content higher has less floating fibre, illustrates that to the addition of weighting material helpful to less floating fibre.
In sum, when PC content 60 ~ 85%, packing material is 3 ~ 5% massfractions, glass fiber content at 10 ~ 30% massfractions, toughner A content 0.5 ~ 3% time, halogen-free flameproof strengthens the excellent combination property of PC composition, be applicable to making flame retardant resistance, high rigidity, resistance to super high impact requires and resistance to warpage requires higher product or parts, product size good stability after shaping, intensity are high, that resist warping and surface gloss good, be conducive to assembling and post-treatment.
In addition, embodiment of the present invention polycarbonate compositions preparation method flow process is simple, processing condition are reasonable, select suitable PC, glass fibre, weighting material and fire retardant thereof, toughner, oxidation inhibitor and other auxiliary agent etc., in certainweight ratio melt blending preparation in suitable expressing technique, then composition material can be prepared, and price is suitable, there is market application foreground widely.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.

Claims (9)

1. a polycarbonate compositions, comprises the component of following weight part:
The high acid value polyolein fiber of described toughner to be acid number be 40 ~ 80mgKOH/g.
2. polycarbonate compositions according to claim 1, is characterized in that: described glass fibre is E type alkali-free continuous glass fibre or chopped strand.
3. polycarbonate compositions according to claim 2, is characterized in that: the diameter of described E type alkali-free continuous glass fibre is 9 ~ 17 microns, and linear density is 2000 ~ 2400tex;
The diameter of described chopped strand is 9 ~ 17 microns, length 2 ~ 6mm.
4. polycarbonate compositions according to claim 1, is characterized in that: described packing material is talcum powder, mica, glass microballon wherein one or more.
5. polycarbonate compositions according to claim 4, is characterized in that: described talcous particle diameter is 2000 ~ 6000 orders; And/or
Described mica is mica powder, and particle diameter is 1000 ~ 3000 orders; And/or
Described glass microballon is solid or hollow, and particle diameter is 10 ~ 80 microns.
6., according to the arbitrary described polycarbonate compositions of claim 1-5, it is characterized in that: described polycarbonate is bisphenol-a polycarbonate, its relative density is 1.20 ~ 1.22g/cm 3, vicat softening temperature is 145 ~ 155 DEG C, and melting index is 10 ~ 30g/min.
7. according to the arbitrary described polycarbonate compositions of claim 1-5, it is characterized in that: described fire retardant is the mixture, 2 of the mixture of potassium phenylsulphonyl benzene sulfonate and cladded type tetrafluoroethylene, perfluorobutyl potassium and cladded type tetrafluoroethylene, one or more in the mixture of 4,5-trichlorobenzene sodium sulfonate and cladded type tetrafluoroethylene; And/or
Described primary antioxidant is four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, N, N ' one or both among-hexa-methylene two (3,5-di-t-butyl-4-hydroxybenzene propionic acid amide); And/or
Described auxiliary type oxidation inhibitor is one or both among three (2,4-di-tert-butyl-phenyl) phosphorous acid ester, two (2,4-di-t-butyl) pentaerythritol diphosphites.
8. a preparation method for polycarbonate compositions, comprises the following steps:
Each component is taken respectively according to the polycarbonate compositions described in any one of claim 1 ~ 7;
The component taken except fiberglass component is carried out mixing treatment, obtains mixture;
Added from main spout by described mixture, fiberglass component adds from side material mouth and carries out mixed melting and extrude process.
9. the preparation method of polycarbonate compositions according to claim 8, is characterized in that: described in the temperature 100 ± 10 DEG C → 250 ± 10 DEG C → 260 ± 5 DEG C → 260 ± 5 DEG C → 260 ± 5 DEG C → 285 ± 5 DEG C → 285 ± 5 DEG C → 260 ± 5 DEG C → 260 ± 5 DEG C → 260 ± 5 DEG C → 260 ± 5 DEG C → 265 ± 5 DEG C that melt extrudes.
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