CN103772825A - Long glass fiber enhanced polypropylene composite material and preparation method thereof - Google Patents
Long glass fiber enhanced polypropylene composite material and preparation method thereof Download PDFInfo
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- CN103772825A CN103772825A CN201410033762.1A CN201410033762A CN103772825A CN 103772825 A CN103772825 A CN 103772825A CN 201410033762 A CN201410033762 A CN 201410033762A CN 103772825 A CN103772825 A CN 103772825A
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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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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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
- 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
- B29C48/78—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
- 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
- B29C2948/92514—Pressure
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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
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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
- B29C2948/92609—Dimensions
- B29C2948/92638—Length
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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
- B29C2948/92895—Barrel or housing
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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
- B29C2948/92904—Die; Nozzle zone
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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
- B29C2948/92933—Conveying, transporting or storage of articles
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/004—Additives being defined by their length
Abstract
The invention discloses a long glass fiber enhanced polypropylene composite material and a preparation method of the long glass fiber enhanced polypropylene composite material. The long glass fiber enhanced polypropylene composite material comprises the following components in percent by weight: 40-65 percent of polypropylene, 30-50 percent of glass fiber, 4-7 percent of a compatilizer, 0.5-1.5 percent of an antioxidant and 0.5-1.5 percent of a lubricating agent. The preparation method comprises the following steps: correspondingly mixing the polypropylene, the compatilizer, the lubricating agent and the antioxidant, dispersing long glass fibers in the fused and mixed materials for performing impregnation treatment, and preparing the long glass fiber enhanced polypropylene composite material. The long glass fiber enhanced polypropylene composite material provided by the invention is balanced in mechanical property, is particularly high in impact strength and has low shrinkage, high dimensional stability, low warpage, small anisotropism, low creep and high dynamic fatigue resistance. According to the preparation method, the long glass fibers can be effectively dispersed, and the length of the long glass fibers is kept.
Description
Technical field
The invention belongs to technical field of polymer materials, particularly a kind of Long Glass Fiber Reinforced PP Composite and preparation method thereof.
Background technology
Polypropylene (Polypropylene, PP) good toughness at normal temperatures, poor rigidity, cannot be applied to the field that rigidity is had relatively high expectations, and application is restricted.After PP being strengthened with glass fibre, the mechanical property of material, especially tensile strength, flexural strength and modulus in flexure all obviously improve, and have made up to a great extent the poor shortcoming of PP rigidity, are widely used in the fields such as electric, household electrical appliances and automobile.
As everyone knows, strengthen in PP matrix material at glass, the length of glass is longer, the length-to-diameter ratio that is glass is larger, its reinforced effects as strongthener is more obvious, research shows, as the glass fibre of strongthener, its threshold value that retains length in goods is 3.1mm, Length of Glass Fiber only, in the time being greater than critical length, just can play good reinforced effects, otherwise glass easily pulls away and comes off after goods are stressed from resin matrix, can only play the filling left and right that class gel mineral is the same, but not enhancement.But strengthen in the matrix material of PP at traditional glass, glass is to carry out mixing granulation by twin screw extruder and PP resin to obtain, continuous glass fibre is under the shearing action of screw rod and shorten, the length of glass in matrix material particle only has 0.5mm left and right conventionally, this matrix material is prepared in the process of product through injection moulding or other forming methods, glass the destruction of factor such as can be sheared and further be shortened, and under normal circumstances, in goods, the final lengths of glass only has 0.3mm left and right.Therefore the Length of Glass Fiber, how retaining in glass enhancing PP matrix material is the technical problem that this area needs customer service to realize its reinforced effects.
Summary of the invention
The object of the invention is to overcome the above-mentioned deficiency of prior art, a kind of Long Glass Fiber Reinforced PP Composite and preparation method thereof is provided, strengthens glass length-to-diameter ratio in the matrix material of PP to solve existing glass short and cause the poor technical problem of its reinforced effects.
In order to realize foregoing invention object, technical scheme of the present invention is as follows:
A kind of Long Glass Fiber Reinforced PP Composite, comprises the component of following weight percent:
Wherein, glass fibre is to be scattered in Long Glass Fiber Reinforced PP Composite, and equal in length while being particle of its length and described Long Glass Fiber Reinforced PP Composite.
And a kind of preparation method of Long Glass Fiber Reinforced PP Composite, comprises the steps:
Take respectively polypropylene, compatilizer, lubricant and antioxidant component according to the component concentration of above-mentioned Long Glass Fiber Reinforced PP Composite;
Described polypropylene, compatilizer, lubricant and oxidation inhibitor are carried out to mixing treatment, obtain mixture;
Adopt forcing machine melting to be placed in dipping systems described mixture, in dipping systems, add long glass fibres again, and after making described long glass fibres be scattered in the mixture of described melting through traction, cooling, pelletizing processing, obtain described Long Glass Fiber Reinforced PP Composite; Wherein, long glass fibres add-on accounts for the 30-50% of described Long Glass Fiber Reinforced PP Composite total weight percent; And glass fibre length and described Long Glass Fiber Reinforced PP Composite particle equal in length in described Long Glass Fiber Reinforced PP Composite after described pelletizing is processed.
Compared with prior art, in Long Glass Fiber Reinforced PP Composite of the present invention, glass fibre is in dispersed and material, and its length can remain to equal in length with Long Glass Fiber Reinforced PP Composite particle.Therefore, Long Glass Fiber Reinforced PP Composite of the present invention is used for after the goods of moulding, more than glass fibre length can retain 5mm, therefore, and Long Glass Fiber Reinforced PP Composite mechanical property of the present invention equilibrium, especially shock strength is higher; Low contraction, high-dimensional stability; Low warpage, anisotropy is little; Low creep, anti-dynamic fatigue is good.
Above-mentioned Long Glass Fiber Reinforced PP Composite adopts pickling process to make long glass fibres dispersed to the compound of melting, the length that has effectively guaranteed long glass fibres is not destroyed, make the Long Glass Fiber Reinforced PP Composite mechanical property excellence preparing, its preparation method condition is easily controlled simultaneously, and the composite property of preparing is stable.
Embodiment
In order to make the technical problem to be solved in the present invention, technical scheme and beneficial effect clearer, 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, is not intended to limit the present invention.
The embodiment of the present invention provides a kind of length that can effectively retain glass fibre, the Long Glass Fiber Reinforced PP Composite of mechanical property excellence.This Long Glass Fiber Reinforced PP Composite comprises the component of following weight percent:
Particularly, above-mentioned polypropylene is as matrix component, disperse in order to be beneficial to glass fibre, make in above-described embodiment the performance such as Long Glass Fiber Reinforced PP Composite mechanics better, as preferred embodiment, this polypropylene selects melting index under 230 ℃, 2.16 kilograms, to be greater than the polypropylene of 80g/10min, and concrete melting index can be according to ASTM D1238 standard, 230 ℃, under 2.16 kilograms of test conditions, test.Therefore,, in specific embodiment, this polypropylene is selected from least one in the PP resin of PP resin, Korea S's Samsung the first woolens of Korea S SK.Wherein, the PP resin of Korea S SK can be that the trade mark is the PP resin of BX3920, and the PP resin of Korea S's Samsung the first woolens can be that the trade mark is the PP resin of BI995.Certainly, this polypropylene can also be selected the polypropylene of this area routine.In specific embodiment, the weight percent content of this polypropylene in Long Glass Fiber Reinforced PP Composite can be 40%, 43%, 45%, 48%, 50%, 52%, 55%, 58%, 60%, 63%, 65% etc.
Above-mentioned glass fibre is dispersed in above-mentioned Long Glass Fiber Reinforced PP Composite, and its length in this Long Glass Fiber Reinforced PP Composite and described Long Glass Fiber Reinforced PP Composite particle is equal in length.In a preferred embodiment, in the time that Long Glass Fiber Reinforced PP Composite particle is controlled at 10～25mm, this glass fibre length that is dispersed in described Long Glass Fiber Reinforced PP Composite is 10～25mm.State and length that this glass fibre exists, the excellent mechanical property of effectively having given above-mentioned Long Glass Fiber Reinforced PP Composite.In one embodiment, this glass fibre can be to provide by the long glass fibres in following Long Glass Fiber Reinforced PP Composite preparation method, and its length can be controlled by pelletizing treatment process.In specific embodiment, the weight percent content of this glass fibre in Long Glass Fiber Reinforced PP Composite can be 30%, 33%, 35%, 38%, 40%, 42%, 45%, 48%, 50% etc.
The preferred PP grafted maleic anhydride of above-mentioned compatilizer, as can be that product type is at least one in 200A, SWJ-1B, 8010-MAH.Wherein model is that 200A can be the photoproduction product of Ningbo energy, and SWJ-1B can be the four-dimensional production in Shenyang, and 8010-MAH can be that Shenzhen Keju New Material Co., Ltd. produces.Certainly, other compatilizers that can realize above-mentioned compatilizer effect are also applicable to the present invention.In specific embodiment, the weight percent content of this compatilizer in Long Glass Fiber Reinforced PP Composite can be 4%, 4.5%, 5%, 5.5%, 6%, 6.5%, 7% etc.
Resist oxygen aging effect is played in the effect of above-mentioned oxidation inhibitor in above-described embodiment Long Glass Fiber Reinforced PP Composite, therefore, oxidation inhibitor can select primary antioxidant 1076,1010 and auxiliary antioxidant 168 composite.In specific embodiment, the weight percent content of this oxidation inhibitor in Long Glass Fiber Reinforced PP Composite can be 0.5%, 0.7%, 0.9%, 1.0%, 1.2%, 1.3%, 1.4%, 1.5% etc.
Above-mentioned lubricant can select internal lubricant PE wax and external lubricant calcium stearate, Zinic stearas etc. composite.In specific embodiment, the weight percent content of this lubricant in Long Glass Fiber Reinforced PP Composite can be 0.5%, 0.7%, 0.9%, 1.0%, 1.2%, 1.3%, 1.4%, 1.5% etc.
From the above, glass fibre in above-mentioned Long Glass Fiber Reinforced PP Composite is dispersed in by the mode of disperseing, and effectively retain length to more than 10mm, thereby make the mechanical property of this Long Glass Fiber Reinforced PP Composite, and mechanical property equilibrium.
Correspondingly, the embodiment of the present invention also provides the preparation method of above-mentioned Long Glass Fiber Reinforced PP Composite, and the method comprises the steps:
S01. take respective components: take respectively polypropylene, compatilizer lubricant and antioxidant component according to the component concentration of above-mentioned Long Glass Fiber Reinforced PP Composite;
S02. respective components is carried out to mixing treatment: described polypropylene, compatilizer lubricant and oxidation inhibitor are carried out to mixing treatment, obtain mixture;
S03. long glass fibres is scattered in and in melting mixing material, carries out dip treating and prepare Long Glass Fiber Reinforced PP Composite: melting adopts forcing machine melting to be placed in dipping systems described mixture, in dipping systems, add long glass fibres again, and after making described long glass fibres be scattered in the mixture of described melting through traction, cooling, pelletizing processing, obtain described Long Glass Fiber Reinforced PP Composite.
Particularly, the each component preferred content of polypropylene, compatilizer lubricant and oxidation inhibitor in above-mentioned steps S01 and kind as described above, in order to save length, do not repeat them here.
In above-mentioned steps S02, polypropylene, compatilizer lubricant and oxidation inhibitor mixing treatment do not have special requirement, as long as each component is mixed, carry out batch mixing 3～5min as each component added in mixing tank.
In above-mentioned steps S03, the processing condition of the mixture forcing machine melting of being prepared by step S02 are preferably a district temperature 175-200 ℃, two district temperature 180-210 ℃, three district temperature 180-210 ℃, four district temperature 185-220 ℃, five district temperature 185-220 ℃, six district temperature 200-220 ℃, seven district temperature 200-220 ℃, head 220-230 ℃, pressure is 12-18MPa.
In this step S03, in dipping systems, add the amount of long glass fibres should guarantee that its gross weight percentage in final Long Glass Fiber Reinforced PP Composite contains for 30-50%.In a preferred embodiment, this long glass fibres is preferably long glass fibres and is selected from least one in EDR17-2400-362K, SE4805,988A, T635B.
In a preferred embodiment, to be scattered in the mixture of described melting be to adopt to be arranged on roller in dipping systems and to realize to long glass fibres.In further preferred embodiment, this roller is the roller of " product " font.The roller that is somebody's turn to do " product " font is that two rollers are arranged in parallel, and the 3rd roller is set in the above, and entirety is " product " font.Wherein, this single roller can be existing conventional roller.Adopt the roller of " product " font can make long glass fibres roll dispersion in the gap of " product " font roller, glass is loose rather than the picture mode of twisting into a rope sub, like this, facilitates the melt of polypropylene thickness to infiltrate glass fibre intrafascicular.In order to improve dispersion effect, also set up the protruding corner angle of chamfering at the outside surface of this roller.
In step S03, through long glass fibres be scattered in rear haulage in the mixture of described melting, cooling, pelletizing is processed and all can be processed according to existing method.As preferred embodiment, the speed of this traction is 15～20m/min.The particle length of pelletizing processing controls Long Glass Fiber Reinforced PP Composite is 10～25mm, and glass fibre length is 10～25mm so.Therefore, equate with glass fibre length through the length of pelletizing Long Glass Fiber Reinforced PP Composite particle after treatment.
The preparation method of above-mentioned Long Glass Fiber Reinforced PP Composite adopts pickling process to make long glass fibres dispersed to the compound of melting, the length that has effectively guaranteed long glass fibres is not destroyed, make the Long Glass Fiber Reinforced PP Composite mechanical property excellence preparing, its preparation method condition is easily controlled simultaneously, and the composite property of preparing is stable.
Now, take Long Glass Fiber Reinforced PP Composite and preparation method thereof as example, the present invention is further elaborated.
Embodiment 1
A kind of Long Glass Fiber Reinforced PP Composite preparation method:
Be that 65%(is weight ratio below by PP weight ratio), long glass fibres EDR17-2400-362K30%, compatilizer 8010-MAH4%, oxidation inhibitor 0.5%, lubricant 0.5% mix.The material mixing is joined in the hopper of twin screw extruder, polypropylene after melting and other raw materials be the dipping systems to head by screw rod transmission, long glass fibres enters dipping systems from die head, by being arranged on " product " font roller that surface in dipping systems is provided with chamfering projection corner angle, long glass fibres is well dispersed in after PP blend melt through traction, cooling, granulation.Wherein twin screw extruder one district temperature 175-200 ℃, two district temperature 180-210 ℃, three district temperature 180-210 ℃, four district temperature 185-220 ℃, five district temperature 185-220 ℃, six district temperature 200-220 ℃, seven district temperature 200-220 ℃, head temperature 220-230 ℃, pressure is 12-18MPa, pull wire speed is 15～20m/min, and the length of granulation is 12mm.
Therefore the Long Glass Fiber Reinforced PP Composite that, prepared by the present embodiment comprises that PP weight ratio is that 65%(is weight ratio below), glass fibre EDR17-2400-362K30%, compatilizer 8010-MAH4%, oxidation inhibitor 0.5%, lubricant 0.5%.Wherein, the one-tenth length of glass fibre is 12mm.
Embodiment 2
A kind of Long Glass Fiber Reinforced PP Composite preparation method:
Be that 60%(is weight ratio below by PP weight ratio), long glass fibres EDR17-2400-362K30%, compatilizer 8010-MAH4%, oxidation inhibitor 0.5%, lubricant 0.5%.The material mixing is joined in the hopper of twin screw extruder, polypropylene after melting and other raw materials be the dipping systems to head by screw rod transmission, roving glass fiber enters dipping systems from die head, long glass fibres enters dipping systems from die head, by being arranged on " product " font roller that surface in dipping systems is provided with chamfering projection corner angle, long glass fibres is well dispersed in after PP blend melt through traction, cooling, granulation.Wherein twin screw extruder one district temperature 175-200 ℃, two district temperature 180-210 ℃, three district temperature 180-210 ℃, four district temperature 185-220 ℃, five district temperature 185-220 ℃, six district temperature 200-220 ℃, seven district temperature 200-220 ℃, head temperature 220-230 ℃, pressure is 12-18MPa, pull wire speed is 15～20m/min, and the length of granulation is 12mm.
Therefore the Long Glass Fiber Reinforced PP Composite that, prepared by the present embodiment comprises that PP weight ratio is that 60%(is weight ratio below), glass fibre EDR17-2400-362K30%, compatilizer 8010-MAH4%, oxidation inhibitor 0.5%, lubricant 0.5%.Wherein, the one-tenth length of glass fibre is 12mm.
Embodiment 3
A kind of Long Glass Fiber Reinforced PP Composite preparation method:
Be that 53%(is weight ratio below by PP weight ratio), long glass fibres SE480540%, compatilizer 8010-MAH5%, oxidation inhibitor 1%, lubricant 1%.The material mixing is joined in the hopper of twin screw extruder, polypropylene after melting and other raw materials be the dipping systems to head by screw rod transmission, roving glass fiber enters dipping systems from die head, roving glass fiber enters dipping systems from die head, long glass fibres enters dipping systems from die head, by being arranged on " product " font roller that surface in dipping systems is provided with chamfering projection corner angle, long glass fibres is well dispersed in after PP blend melt through traction, cooling, granulation.Wherein twin screw extruder one district temperature 175-200 ℃, two district temperature 180-210 ℃, three district temperature 180-210 ℃, four district temperature 185-220 ℃, five district temperature 185-220 ℃, six district temperature 200-220 ℃, seven district temperature 200-220 ℃, head temperature 220-230 ℃, pressure is 12-18MPa, pull wire speed is 15～20m/min, and the length of granulation is 12mm.
Therefore, Long Glass Fiber Reinforced PP Composite prepared by the present embodiment comprises that PP weight ratio is that 53%(is weight ratio below), glass fibre SE480540%, compatilizer 8010-MAH5%, oxidation inhibitor 1%, lubricant 1%.Wherein, the one-tenth length of glass fibre is 12mm.
Embodiment 4
A kind of Long Glass Fiber Reinforced PP Composite preparation method:
Be that 47%(is weight ratio below by PP weight ratio), long glass fibres SE480545%, compatilizer 8010-MAH6%, oxidation inhibitor 1%, lubricant 1%.The material mixing is joined in the hopper of twin screw extruder, polypropylene after melting and other raw materials be the dipping systems to head by screw rod transmission, roving glass fiber enters dipping systems from die head, roving glass fiber enters dipping systems from die head, long glass fibres enters dipping systems from die head, by being arranged on " product " font roller that surface in dipping systems is provided with chamfering projection corner angle, long glass fibres is well dispersed in after PP blend melt through traction, cooling, granulation.Wherein twin screw extruder one district temperature 175-200 ℃, two district temperature 180-210 ℃, three district temperature 180-210 ℃, four district temperature 185-220 ℃, five district temperature 185-220 ℃, six district temperature 200-220 ℃, seven district temperature 200-220 ℃, head temperature 220-230 ℃, pressure is 12-18MPa, pull wire speed is 15～20m/min, and the length of granulation is 12mm.
Therefore the Long Glass Fiber Reinforced PP Composite that, prepared by the present embodiment comprises that PP weight ratio is that 47%(is weight ratio below), long glass fibres SE480545%, compatilizer 8010-MAH6%, oxidation inhibitor 1%, lubricant 1%.Wherein, the one-tenth length of glass fibre is 12mm.
Embodiment 5
A kind of Long Glass Fiber Reinforced PP Composite preparation method:
Be that 40%(is weight ratio below by PP weight ratio), glass fibre 50%, compatilizer 8010-MAH7%, oxidation inhibitor 1.5%, lubricant 1.5%.The material mixing is joined in the hopper of twin screw extruder, the polypropylene after melting and other raw materials are by screw rod transmission to the dipping systems of head, and roving glass fiber enters dipping systems from die head, are well dispersed in after PP melt through traction, cooling, granulation.Wherein twin screw extruder one district temperature 175-200 ℃, two district temperature 180-210 ℃, three district temperature 180-210 ℃, four district temperature 185-220 ℃, five district temperature 185-220 ℃, six district temperature 200-220 ℃, seven district temperature 200-220 ℃, head temperature 220-230 ℃, pressure is 12-18MPa, pull wire speed is 15～20m/min, and the length of granulation is 12mm.
Therefore, it is that 40%(is weight ratio below that Long Glass Fiber Reinforced PP Composite prepared by the present embodiment comprises PP weight ratio), glass fibre 50%, compatilizer 8010-MAH7%, oxidation inhibitor 1.5%, lubricant 1.5%, oxidation inhibitor 1%, lubricant 1%.Wherein, the one-tenth length of glass fibre is 12mm.
Comparative example 1
Change the long glass fibres in embodiment 1 into short glass fiber, and by directly adopting twin screw extruder to melt extrude after short glass fiber and PP, compatilizer, oxidation inhibitor, mix lubricant, obtain matrix material.Its each component concentration as described in Table 1.
Performance test:
Tensile strength is tested by ASTM D-638 standard.Specimen types is I type, batten size (mm): (176 ± 2) (length) × (12.6 ± 0.2) (end width) × (3.05 ± 0.2) (thickness), and draw speed is 50mm/min;
Flexural strength and modulus in flexure are tested by ASTM D-790 standard.Specimen types is specimen size (mm): (128 ± 2) × (12.67 ± 0.2) × (3.11 ± 0.2), and rate of bending is 20mm/min;
Socle girder notched Izod impact strength is tested by ASTM D-256 standard.Specimen types is I type, specimen size (mm): (63 ± 2) × (12.45 ± 0.2) × (3.1 ± 0.2); Breach type is category-A, and breach residual thickness is 1.9mm;
The matrix material that the Long Glass Fiber Reinforced PP Composite that embodiment 1～5 provides and comparative example 1 provide carries out correlated performance test, and it the results are shown in Table 1:
Table 1
Can be found out by upper table 1: along with the increase of long glass fibres consumption, the mechanical property of the Long Glass Fiber Reinforced PP Composite that embodiment 1-5 provides also increases thereupon.When identical long glass fibres content, the mechanical property of Long Glass Fiber Reinforced PP Composite strengthens the mechanical property of PP matrix material apparently higher than short glass fiber in comparative example 1.This is because in embodiment of the present invention Long Glass Fiber Reinforced PP Composite system, it is the carrying effect as power that glass strengthens, PP base material is as the transfer function of power, the length of glass is longer, consumption more (within the specific limits), glass just can better absorb energy of rupture, and macroscopic view is presented as the excellent mechanical property of material.Roving glass fiber strengthens PP matrix material because having excellent mechanical property, has a wide range of applications in fields such as automotive light weight technologies.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a Long Glass Fiber Reinforced PP Composite, comprises the component of following weight percent:
Wherein, glass fibre is to be scattered in Long Glass Fiber Reinforced PP Composite, and equal in length while being particle of its length and described Long Glass Fiber Reinforced PP Composite.
2. Long Glass Fiber Reinforced PP Composite according to claim 1, is characterized in that: described polypropylene melt index is greater than 80g/10min under 230 ℃, 2.16 kilograms; And/or described compatilizer is PP grafted maleic anhydride.
3. Long Glass Fiber Reinforced PP Composite according to claim 1 and 2, is characterized in that: described polypropylene is selected from least one in the PP resin of PP resin, Korea S's Samsung the first woolens of Korea S SK.
4. Long Glass Fiber Reinforced PP Composite according to claim 1 and 2, is characterized in that: described PP grafted maleic anhydride is 200A, SWJ-1B, 8010-MAH.
5. Long Glass Fiber Reinforced PP Composite according to claim 1 and 2, is characterized in that: described glass fibre length is 10～25mm.
6. a preparation method for Long Glass Fiber Reinforced PP Composite, comprises the steps:
Component concentration according to the Long Glass Fiber Reinforced PP Composite described in claim 1～5 any one takes respectively polypropylene, compatilizer, lubricant and antioxidant component;
Described polypropylene, compatilizer, lubricant and oxidation inhibitor are carried out to mixing treatment, obtain mixture;
Adopt forcing machine melting to be placed in dipping systems described mixture, in dipping systems, add long glass fibres again, and after making described long glass fibres be scattered in the mixture of described melting through traction, cooling, pelletizing processing, obtain described Long Glass Fiber Reinforced PP Composite; Wherein, long glass fibres add-on accounts for the 30-50% of described Long Glass Fiber Reinforced PP Composite total weight percent; And glass fibre length and described Long Glass Fiber Reinforced PP Composite particle equal in length in described Long Glass Fiber Reinforced PP Composite after described pelletizing is processed.
7. the preparation method of Long Glass Fiber Reinforced PP Composite according to claim 6, is characterized in that: the mixture that described long glass fibres is scattered in described melting is to adopt the roller of " product " font to carry out dispersion treatment to described roving glass fiber.
8. the preparation method of Long Glass Fiber Reinforced PP Composite according to claim 7, is characterized in that: described roller outside surface is set up the protruding corner angle of chamfering.
9. according to the preparation method of the arbitrary described Long Glass Fiber Reinforced PP Composite of claim 6-8, it is characterized in that: described long glass fibres be selected from EDR17-2400-362K, SE4805,988A, T635B, at least one.
10. according to the preparation method of the arbitrary described Long Glass Fiber Reinforced PP Composite of claim 6-8, it is characterized in that: described mixture adopts the processing condition Wei Yi district temperature 175-200 ℃ of forcing machine melting, two district temperature 180-210 ℃, three district temperature 180-210 ℃, four district temperature 185-220 ℃, five district temperature 185-220 ℃, six district temperature 200-220 ℃, seven district temperature 200-220 ℃, head 220-230 ℃, pressure is 12-18MPa; And/or described pulling speed is 15～20m/min.
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| CN111607167A (en) * | 2020-06-10 | 2020-09-01 | 山东京博石油化工有限公司 | Glass fiber reinforced polybutylene alloy composite material and preparation method thereof |
| CN114479283A (en) * | 2020-10-27 | 2022-05-13 | 中国石油化工股份有限公司 | Long glass fiber reinforced polypropylene composite material and preparation method and application thereof |
| CN114479283B (en) * | 2020-10-27 | 2023-07-21 | 中国石油化工股份有限公司 | Long glass fiber reinforced polypropylene composite material and preparation method and application thereof |
| CN112457591A (en) * | 2020-11-25 | 2021-03-09 | 江苏金发科技新材料有限公司 | Laser-weldable long glass fiber reinforced polypropylene composite material with good air tightness and preparation method thereof |
| WO2022129045A1 (en) | 2020-12-16 | 2022-06-23 | Ineos Styrolution Group Gmbh | Process for producing a thermoplastic polymer-containing fiber-reinforced composite material |
| WO2022129016A1 (en) | 2020-12-16 | 2022-06-23 | Ineos Styrolution Group Gmbh | Filler-containing thermoplastic polymer composite material reinforced with continuous fibers and having good surface smoothness |
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