CN103724965A - Fiberglass reinforced PC/ABS (Polycarbonate/Acrylonitrile Butadiene Styrene) composite material with low smell and diffusion and preparation method thereof - Google Patents
Fiberglass reinforced PC/ABS (Polycarbonate/Acrylonitrile Butadiene Styrene) composite material with low smell and diffusion and preparation method thereof Download PDFInfo
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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
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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
- B29B7/00—Mixing; Kneading
- B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
- B29B7/7461—Combinations of dissimilar mixers
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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
- B29B7/00—Mixing; Kneading
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/88—Adding charges, i.e. additives
- B29B7/90—Fillers or reinforcements, e.g. fibres
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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
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- 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
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- 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
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/625—Screws characterised by the ratio of the threaded length of the screw to its outside diameter [L/D ratio]
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- 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
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/875—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling for achieving a non-uniform temperature distribution, e.g. using barrels having both cooling and heating zones
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- 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
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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
- 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
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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
- 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
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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
- B29B9/02—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
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- 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
- B29C2948/9258—Velocity
- B29C2948/9259—Angular velocity
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- 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
- B29C2948/92695—Viscosity; Melt flow index [MFI]; Molecular weight
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- 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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- 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
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92885—Screw or gear
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- 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
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
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Abstract
The invention discloses a fiberglass reinforced PC/ABS (Polycarbonate/Acrylonitrile Butadiene Styrene) composite material with low smell and diffusion and a preparation method thereof. The fiberglass reinforced PC/ABS composite material with the low smell and diffusion comprises the following compositions: 29-80 percent of PC resin, 3-40 percent of ABS resin, 2-8 percent of a compatilizer, 10-30 parts of fiberglass, 1-5 parts of medusa particle and 0.1-3 parts of an assistant. The preparation method comprises the steps as follows: the PC resin, the ABS resin, the compatilizer and the assistant are uniformly mixed in a high mixing machine for 1-3 minutes, placed in a main feeding hole of a dual-screw extruder, added with the fiberglass and the medusa particles from a side feeding hole, molten, extruded, pelletized and dried so as to obtain the fiberglass reinforced PC/ABS composite material. According to the invention, a maleic anhydride graft is used as the compatilizer, the compatibility of the composite material is greatly improved, the medusa particles adopting high-melts foamed PP (Polypropylene) as carriers are used as a stripping agent, various kinds of volatile small molecules and organic compounds which are generated during processing can be effectively removed, while the mechanical performance are not affected, and the prepared fiberglass reinforced PC/ABS composite has the characteristics of low smell and diffusion.
Description
Technical field
The present invention relates to a kind of glass fiber reinforced PC/ABS matrix material, be specifically related to a kind of low smell, the low glass fiber reinforced PC/ABS matrix material and preparation method thereof that distributes.
Background technology
PC/ABS matrix material is by PC(polycarbonate) and ABS(acrylonitrile-butadiene-styrene copolymer) synthetic a kind of alloy material according to a certain percentage.Polycarbonate (PC) has the advantages such as shock strength is high, creep resistance, good stability of the dimension, heat-resisting, transparent, dielectric properties are good, but also exist simultaneously processing fluidity poor, easily there is stress cracking, to shortcomings such as breach are responsive, wear no resistance; Acrylonitrile/butadiene/styrene multipolymer (ABS) has good chemical proofing and forming process, yet it is heat-resisting poor relative poor with weathering resistance.Glass fiber reinforced PC/ABS matrix material of both blending and modifying gained can be complementary in performance.Use glass fibre to strengthen PC/ABS matrix material and can further improve the mechanical property of matrix material, and improve its heat resisting temperature, expanded Application Areas, can not only be used as surperficial decoration, can also use as structural part.Be applied to the glass fiber material of automotive upholstery in application process, except requiring to have good mechanical property, processing characteristics, weather resistance, also will have good low volatility, wherein smell requirement is that volatile matter one of is evaluated.
But ABS resin, in manufacturing processed, exists more small molecular weight impurity, smell is more unpleasant, and total carbon emitting is also higher; And, in the preparation process of PC/ABS matrix material, tending to add the various compatilizers that add, these compatilizers tend to give off an unpleasant smell to some extent.Particularly, in this field of automotive upholstery, the bad smell discharging is subject to increasing human consumer to be queried, and this problem is concerned about by more and more people.China, for the Air quality in better management and control new car car, has promulgated Air Quality Evaluation guide > > in < < passenger car on March 1st, 2012, and has come into effect.This requires material produce manufacturer to provide the product of lower smell, lower VOC to satisfy the demands of consumers.
The basic skills that reduces smell comprises two kinds of chemical reaction and physical adsorptions.Chemical reaction method refers to the additive that some can react with scent of small-molecule substance, these additives and small molecules reaction, produce the another kind of compound that molecular chain is large, can not evaporate in general environment, thereby elimination smell, for example zinc ricinate reduces smell by chelating aldehyde ketone molecule.And for physical adsorption, theoretically, a large amount of cavities can be adsorbed the small molecules of any generation smell or other fugitive constituents, therefore may all produce effect to producing all respects of smell problem.Conventional physical absorbent comprises gac, silica gel, Attapulgite, clay mineral system, molecular sieve, zeolite, wollastonite, wilkinite etc. at present.
It is that resinogen material, stablizer, mineral filler and processing cracking produce that patent 200510026760.0 is mentioned smell, smell solution: nano zine oxide and nano titanium oxide.The improved ABS alloy of a kind of smell molding is disclosed in USP6297307, by adding the mixture of a kind of zinc oxide, magnesium oxide and at least one epoxy compounds, although this method can be improved smell, these additives especially impact and have a great impact the mechanical property of ABS alloy material.
Aforesaid method to the smell problem of material by solution in various degree, yet aforesaid method is only the impact on smell for a certain component, reduce smell, but in fact material smell is the interactional result of various ingredients smell thereby add sorbent material.Therefore, find a kind of method that can solve various smell problems comprehensively and don't affect the mechanical property of material and seem particularly important.
Summary of the invention
In order to overcome the defect of above-mentioned prior art, primary and foremost purpose of the present invention is to provide a kind of low smell, low glass fiber reinforced PC/ABS matrix material that distributes, said composition is by adding jellyfish grain, can effectively remove the various volatile small molecule and the organic compound that in the course of processing, produce, not affect the mechanical property of material simultaneously.
Another object of the present invention is to provide a kind of above-mentioned low smell, the low preparation method who distributes glass fiber reinforced PC/ABS matrix material.
The present invention is achieved through the following technical solutions:
Low smell, low glass fiber reinforced PC/ABS matrix material that distributes, by weight percentage, comprise following component:
PC resin: 29-80%
ABS resin: 3-40%
Compatilizer: 2-8%
Glass fibre: 10-30%
Jellyfish grain 1-5%
Auxiliary agent 0.1-3%;
Wherein, described jellyfish grain by weight percentage, comprises following component:
Polypropylene 1%-49%;
Water 50%-98%;
Mineral filler 0.1-5%;
Jellyfish grain of the present invention, is by polypropylene, the mixture that mineral filler and water form, this mixture water content>=50%, preferably 60-90%; Described polypropylene is high melt strength, propylene, its melt strength>=5cN; Wherein, melt strength test condition is: under the experimental temperature of 190 ℃, use the capillary die that length-to-diameter ratio is 10:1, mouthful mould is 24cm to the distance of roller, and plunger lowering speed is 0.10mm/s, and the acceleration of traction rollers is 5mm/s
2.Described mineral filler is one or more the mixing in talcum powder, calcium carbonate or barium sulfate.
The preparation method of described jellyfish grain, comprises the steps:
(1) polypropylene is mixed by proportioning fully with mineral filler, in forcing machine, extrude strip polypropylene, then be chopped into polypropylene pre-expanded particles;
(2) take water as whipping agent, polypropylene pre-expanded particles is foamed, prepare the expanded polypropylene of high fondant-strength;
(3) the mixed 5-10min in super mixer by the expanded polypropylene of high fondant-strength and water, prepares jellyfish grain, emits stand-by.
The preferred 1-5% of jellyfish grain add-on of the present invention, adds too much jellyfish grain, and jellyfish grain can seethe with excitement in screw rod, thereby is unfavorable for producing.
Described ABS resin is vinyl cyanide, divinyl, cinnamic terpolymer, preparation method is substance law or emulsion method, wherein the weight percent content of divinyl is 10-55%, and the weight percent content of vinyl cyanide is 15-32%, and cinnamic weight percent content is 30-70%.
Described PC resin is bisphenol A polycarbonate, and its molecular weight is 10000-40000.
Described compatilizer is the grafts PP-g-MAH of polypropylene and maleic anhydride, percentage of grafting is 0.3-1.2%, it melts to refer to be 50-120g/10min(190 ℃, 2.16kg), maleic anhydride graft compatilizer is by introducing strong polar reaction group, make material there is high polarity and reactivity, can greatly improve the consistency of matrix material.
Described glass fibre is one or more mixing of long glass fibres or short glass fiber.
Preferably, described long glass fibres is alkali free glass fibre, and diameter is 10-16 μ m; The length of described short glass fiber is 0.2-10mm, and diameter is 8-20 μ m.
Alloy of the present invention also comprises 0.1-3%(weight percent) auxiliary agent, described auxiliary agent is one or more the mixing in thermo-stabilizer, photostabilizer, processing aid, toner or pigment.Can to above-mentioned auxiliary agent, use separately according to different technologies requirement etc., or compound use.Thermo-stabilizer can improve the heat aging property of material in processing and use procedure, conventionally can be selected from more than one in phenols, phosphorous acid esters, monothioester class.Photostabilizer can improve material light aging resisting property in use, can be hindered amines or UV light absorber.Processing aid is more than one in low molecule ester class stearic acid, metallic soap (Cast, Znst), stearic acid complex ester or amides (erucicamide).
Low smell of the present invention, the low preparation method who distributes glass fiber reinforced PC/ABS matrix material, comprise the following steps:
(1) take by weight percentage PC resin, ABS resin, compatilizer and auxiliary agent and in high mixer, mix 1-3min; Mix, obtain Preblend;
(2) Preblend is placed in to the main spout of twin screw extruder, from side spout, adds glass fibre and jellyfish grain, melt extrude, granulating and drying, obtains.
The described condition melt extruding is: a district temperature 180-210 ℃, two district temperature 220-250 ℃, three district temperature 220-250 ℃, four district temperature 230-260 ℃, five district temperature 240-280 ℃, six district temperature 240-280 ℃, seven district temperature 240-280 ℃, eight district temperature 240-280 ℃, nine district temperature 240-280 ℃, engine speed 250-600 rev/min; The length-to-diameter ratio of twin screw extruder is 40:1.
The present invention compared with prior art, has following beneficial effect:
1) the present invention uses and take maleic anhydride grafts as compatilizer, can greatly improve the consistency of matrix material, the jellyfish grain that the high flux foaming PP of usining is carrier is as air lift agent, can effectively remove the various volatile small molecule and the organic compound that in the course of processing, produce, prepared glass fiber reinforced PC/ABS matrix material has low smell, low characteristic of distributing;
2) the jellyfish grain that the present invention uses is simple and easy to get, and preparation technology is simple, and cost is low, when can effectively remove smell, and
Do not affect the mechanical property of composition;
3) the low smell that the present invention proposes, the low preparation method who distributes glass fiber reinforced PC/ABS matrix material are simple, take side
The reinforced mode of feeding adds jellyfish grain, has avoided adding problem fashionable and that cause the moisture jellyfish grain to volatilize too early from main feeding, can more effectively remove smell.
Embodiment
Below by embodiment, further illustrate the present invention, following examples are preferably embodiment of the present invention, but embodiments of the present invention are not subject to the restriction of following embodiment.
In following examples and comparative example, the processing conditions that forcing machine melt extrudes is as follows: a district temperature 180-210 ℃, two district temperature 220-250 ℃, three district temperature 220-250 ℃, four district temperature 230-260 ℃, five district temperature 240-280 ℃, six district temperature 240-280 ℃, seven district temperature 240-280 ℃, eight district temperature 240-280 ℃, nine district temperature 240-280 ℃, engine speed 250-600 rev/min; The length-to-diameter ratio of twin screw extruder is 40:1.
In following examples and comparative example, PC resin is selected from Japanese Supreme Being people's PC L-1250WP, and ABS resin is selected from the AG15A1 of Taiwan, and roving glass fiber is selected from the ER13-2000-988A of megalith group, and its Fibre diameter is 13 μ m, and linear density is 2000tex; Short glass fiber is selected from the ECS-13-4.5 series of Shenzhen Yataida company, and the length of its glass fibre is 4.5mm, and diameter is 13 μ m.Compatilizer is selected from the KT-1 of Shenyang Ke Tong plastic cement company limited, and percentage of grafting is 0.8%, melting index be 60g/10min (190 ℃, 2.16kg).
the preparation of jellyfish grain:
The high melt strength, propylene of different melt intensity is mixed by proportioning shown in table 1 fully with mineral filler (talcum powder, calcium carbonate or barium sulfate), in forcing machine, extrude strip polypropylene, then be chopped into polypropylene pre-expanded particles; Take water as whipping agent, polypropylene pre-expanded particles is foamed, prepare the expanded polypropylene of high fondant-strength; The mixed 5-10min in super mixer by the expanded polypropylene of high fondant-strength and water, by controlling mixing time, prepares the jellyfish grain of water content as shown in table 1, emits stand-by.
Each component concentration (weight percent) of table 1 jellyfish grain
embodiment 1-4
Low smell, low glass fiber reinforced PC/ABS matrix material that distributes, its composition of raw materials is as shown in table 3, and its preparation method comprises the following steps:
Take by weight percentage each component, in high mixer, mixed 1-3min; Mix, obtain Preblend; The main spout that Preblend is placed in to twin screw extruder, adds jellyfish grain from side spout, melt extrudes, and then granulation, cooling, obtains glass fiber reinforced PC/ABS matrix material.Measure its performance, smell and volatile matter, concrete data are listed in table 4.
comparative example 1
Glass fiber reinforced PC/ABS matrix material, its composition of raw materials is as shown in table 3, and its preparation method comprises the following steps:
Take by weight percentage each component (not adding jellyfish grain), in high mixer, mixed 1-3min; Mix, obtain Preblend; Preblend is placed in to twin screw extruder, melt extrudes, then granulation, cooling, obtains glass fiber reinforced PC/ABS matrix material.Measure its performance, smell and volatile matter, concrete data are listed in table 4.
comparative example 2
Glass fiber reinforced PC/ABS matrix material, its composition of raw materials is as shown in table 3, and its preparation method comprises the following steps:
Take by weight percentage each component (comprising jellyfish grain), in high mixer, mixed 1-3min; Mix, obtain Preblend; Preblend is placed in to twin screw extruder, melt extrudes, then granulation, cooling, obtains glass fiber reinforced PC/ABS matrix material.Measure its performance, smell and volatile matter, concrete data are listed in table 4.
comparative example 3
Glass fiber reinforced PC/ABS matrix material, its composition of raw materials is as shown in table 3, and its preparation method is with comparative example 1:
comparative example 4
Glass fiber reinforced PC/ABS matrix material, its composition of raw materials is as shown in table 3, and its preparation method is with embodiment 1:
Glass fiber reinforced PC/ABS composite material by adopting following methods that embodiment and comparative example obtain is tested its correlated performance:
(1) measurement of odor standard:
The test of volatile gases in car and smell is comprised to people's sensory test and strict instrument test.This patent, by the VW ' s PV3900E of Volkswagen standard, adopts 1 ~ 6 grade of evaluation, and rank is higher, and smell is larger.Table 2, for the evaluation content that Volkswagen controls the standard P V3900 of smell in Automobile, is divided into 6 ranks.Its method is under certain experiment condition, part is placed in to the vessel of a sealing, the smell by professional with Olfactometry part.Subjective smell test experiments condition is as follows: 23 ℃ of a normal temperature, simulate 40 ℃ of normal riving condition b high temperature, the riving condition c in simulation summer in 2h, under the condition that high temperature is 80 ℃, simulation extreme temperature and be exposed to the sun summer after condition in cab
Table 2 Volkswagen interior material smell judgement criteria
(2) the organic compound emissions measurement (TVOC) of glass fiber reinforced PC/ABS matrix material detects according to TS-INT-002.
(3) mechanical property: test by ASTM standard
the composition of raw materials (by weight percentage) of glass fiber reinforced PC/ABS matrix material of table 3 embodiment and comparative example
the performance data of glass fiber reinforced PC/ABS matrix material of table 4 embodiment and comparative example
By embodiment 1 and comparative example 1, embodiment 2 and comparative example 3, comparative example 2 can be found out with comparative example 3 contrasts, adding of the jellyfish grain that the high flux foaming PP of take is carrier, really can effectively remove various volatile small molecule and the organic compound in glass fiber reinforced PC/ABS matrix material, and don't affect the mechanical property of material.The present invention prepare glass fiber reinforced PC/ABS matrix material, there is low smell, low feature of distributing.
In addition, by embodiment 2 and comparative example 2 contrasts, can be found out, comparative example 2 takes main feeding feed way to add jellyfish grain, and embodiment 2 takes the reinforced mode of side feeding, the better excellence of its effect; This is because adding membership from main feeding causes the moisture jellyfish grain to vapor away too early, affects its effect.
Embodiment 4 compares with comparative example 4, and the water content of comparative example 4 jellyfish grains is lower, and glass fiber reinforced PC/ABS matrix material smell of preparation is poor, and volatile content is also higher.
Claims (13)
1. low smell, low glass fiber reinforced PC/ABS matrix material that distributes, is characterized in that: by weight percentage, comprise following component:
PC resin: 29-80%
ABS resin: 3-40%
Compatilizer: 2-8%
Glass fibre: 10-30%
Jellyfish grain 1-5%
Auxiliary agent 0.1-3%;
Wherein, described jellyfish grain by weight percentage, comprises following component:
Polypropylene 1%-49%;
Water 50%-98%;
Mineral filler 0.1-5%;
Described polypropylene is high melt strength, propylene, its melt strength >=5cN.
2. low smell according to claim 1, low glass fiber reinforced PC/ABS matrix material that distributes, it is characterized in that: described ABS resin is vinyl cyanide, divinyl, cinnamic terpolymer, wherein the weight percent content of divinyl is 10-55%, the weight percent content of vinyl cyanide is 15-32%, and cinnamic weight percent content is 30-70%.
3. low smell according to claim 1, low glass fiber reinforced PC/ABS matrix material that distributes, is characterized in that: described PC resin is bisphenol A polycarbonate, and its molecular weight is 10000-40000.
4. low smell according to claim 1, low glass fiber reinforced PC/ABS matrix material that distributes, it is characterized in that: described compatilizer is the grafts of polypropylene and maleic anhydride, percentage of grafting is 0.3-1.2%, and its melting index, at 190 ℃, is 50-120g/10min under 2.16kg condition.
5. low smell according to claim 1, low glass fiber reinforced PC/ABS matrix material that distributes, is characterized in that: described glass fibre is one or more mixing of long glass fibres or short glass fiber.
6. low smell according to claim 6, low glass fiber reinforced PC/ABS matrix material that distributes, is characterized in that: described long glass fibres is alkali free glass fibre, and diameter is 10-16 μ m; The length of described short glass fiber is 0.2-10mm, and diameter is 8-20 μ m.
7. low smell according to claim 1, low glass fiber reinforced PC/ABS matrix material that distributes, is characterized in that: described auxiliary agent is one or more the mixing in thermo-stabilizer, photostabilizer, processing aid, toner or pigment.
8. low smell according to claim 7, low glass fiber reinforced PC/ABS matrix material that distributes, is characterized in that: described thermo-stabilizer is more than one in phenols, phosphorous acid esters, monothioester class; Described photostabilizer is one or more the mixing in hindered amines or UV light absorber; Described processing aid is more than one in low molecule ester class stearic acid, metallic soap, stearic acid complex ester or amides.
9. low smell according to claim 1, low glass fiber reinforced PC/ABS matrix material that distributes, is characterized in that: in described jellyfish grain, water content is 60-90%.
10. low smell according to claim 1, low glass fiber reinforced PC/ABS matrix material that distributes, is characterized in that, described mineral filler is one or more the mixing in talcum powder, calcium carbonate or barium sulfate.
11. low smells according to claim 1, low glass fiber reinforced PC/ABS matrix material that distributes, is characterized in that: the preparation method of described jellyfish grain, comprises the steps:
(1) polypropylene is mixed by proportioning fully with mineral filler, in forcing machine, extrude strip polypropylene, then be chopped into polypropylene pre-expanded particles;
(2) take water as whipping agent, polypropylene pre-expanded particles is foamed, prepare the expanded polypropylene of high fondant-strength;
(3) expanded polypropylene of high fondant-strength and water are mixed to 5-10min in super mixer, prepare the jellyfish grain of different moisture content, emit stand-by.
Low smell described in 12. claim 1 ~ 11 any one, the low preparation method who distributes glass fiber reinforced PC/ABS matrix material, is characterized in that: comprise the following steps:
(1) take by weight percentage PC resin, ABS resin, compatilizer and auxiliary agent and in high mixer, mix 1-3min; Mix, obtain Preblend;
(2) Preblend is placed in to the main spout of twin screw extruder, from side spout, adds glass fibre and jellyfish grain, melt extrude, granulating and drying, obtains.
13. low smells according to claim 11, the low preparation method who distributes glass fiber reinforced PC/ABS matrix material, it is characterized in that: described in the condition that melt extrudes be: a district temperature 180-210 ℃, two district temperature 220-250 ℃, three district temperature 220-250 ℃, four district temperature 230-260 ℃, five district temperature 240-280 ℃, six district temperature 240-280 ℃, seven district temperature 240-280 ℃, eight district temperature 240-280 ℃, nine district temperature 240-280 ℃, engine speed 250-600 rev/min; The length-to-diameter ratio of twin screw extruder is 40:1.
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| CN111117196A (en) * | 2020-01-02 | 2020-05-08 | 万华化学（宁波）有限公司 | Low-odor low-emission PC/ABS alloy material and preparation method and application thereof |
| CN111410833A (en) * | 2020-04-07 | 2020-07-14 | 南京利华工程塑料有限公司 | Preparation method of long glass fiber reinforced high-gloss PC/ABS alloy material |
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Application publication date: 20140416 |