CN103044769A - Polypropylene composite material with high strength and high elongation at break and preparation method thereof - Google Patents
Polypropylene composite material with high strength and high elongation at break and preparation method thereof Download PDFInfo
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- CN103044769A CN103044769A CN2012105291273A CN201210529127A CN103044769A CN 103044769 A CN103044769 A CN 103044769A CN 2012105291273 A CN2012105291273 A CN 2012105291273A CN 201210529127 A CN201210529127 A CN 201210529127A CN 103044769 A CN103044769 A CN 103044769A
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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
- 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
- B29C48/78—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
- 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
- B29C2948/92704—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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- 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
Abstract
The invention discloses a polypropylene composite material with high strength and high elongation at break. The polypropylene composite material is prepared from the following raw materials in percentage by weight: 55-94% of polypropylene, 5-40% of ultrafine inorganic filler, 0-20% of elastomeric toughener and 0.1-2% of stabilizer. The polypropylene composite material disclosed by the invention has the following advantages: 1) the ultrafine calcium carbonate spherical filler is used for filling so as to modify the polypropylene material; and then compared with traditional talc powder-modified polypropylene, the polypropylene composite material has obviously higher impact toughness and especially has sufficient anti-bending performance and good rigid-tough balance; 2) the ultrafine calcium carbonate rigid particles are used for toughening the polypropylene material, the using quantity of a rubber elastomer with high price is greatly reduced, and the polypropylene composite material simultaneously has higher rigidity and tensile ductility; and 3) the sectional feeding way is adopted, the ultrafine calcium carbonate filler is added into an extruding machine at the lower stream of a screw rod, the influence of other components during the melting blending process on the ultrafine spherical particles during shearing and dispersion processes can be avoided to the greatest extent, and the performances of the composite material are further improved.
Description
Technical field
The present invention relates to a kind of polypropylene composite material; Be specially the polypropylene composite material of a kind of high strength, high elongation at tear, with and preparation method thereof; Belong to polymer modification and manufacture field.
Background technology
Along with the fast development of automobile and related industries, every profession and trade grows with each passing day to the demand of all kinds of general-purpose plastics and engineering plastics, and wherein the consumption of polypropylene composite material has occupied than large portion.Simultaneously, for being applied to the polypropylene composite material of inner and outer decorative parts of automobile, except attractive in appearance, comfortable, more high requirement has been proposed for its security and suitability, require polypropylene material to possess high strength, high tenacity or superhigh tenacity, take into account simultaneously high workability, lowly distribute, scrape resistant, fast light processing characteristics and the application performance such as shine.
Year by year raising along with the polypropylene material performance requriements, need material under the prerequisite that keeps enough rigidity, to improve as far as possible toughness, especially ductility stretches, and the polypropylene composite material of conventional talcum powder and rubber elastomer modification can be accomplished enough rigidity and the toughness of high and relative equilibrium when certain component proportion, but be difficult to do height with the ductility that tension fracture elongation rate characterizes, appreciable anti-bending strength that while has been used for toughness reinforcing caoutchouc elasticity bulk diffusion in a large number, and greatly improved material cost.And the nano level that grow up this year or micron-sized ball-type Rigid Particles Toughened modification technology have well solved this problem.
In general, nano level or micron-sized ball-type particle are joined in the polymkeric substance by melting mixing or alternate manner, can obviously improve toughness and the stretching ductility of material, and anti-bending strength and thermal characteristics also improve, although the reinforced effects not as good as laminal fillers such as talcum powder, micas, but it is matchless that the tension fracture elongation rate of thus obtained high tenacity and superelevation is Talc, and because Rigid Particles Toughened can the loss material rigidity, final material bending resistance and resistance toheat also are enough to satisfy most of goods requirement.
On toughening mechanism, during the polymkeric substance stress deformation, the existence of inorganic ball-type particle or generation stress concentration effect, cause its matrix yielding (hole, crazing, shear zone) on every side, perhaps hinder the expansion of crackle or passivation and stop crackle, when material is subjected to External Force Acting, the effect of the stress under compression that dispersed phase particles produces perpendicular to stress direction, when this stress under compression is enough large, crisp-tough transformation that the rigidity dispersed phase particles can occur, absorb a large amount of energy, thereby the toughness of material is improved.Just because of the above-mentioned toughening effect of micro/nano level ball-type rigid particles, dispersion and the compounding technology of super-fine globular filler take micron order calcium carbonate as representative by the advanced person is applied to the polypropylene material modification, can under the minimum prerequisite of cost, obtains the high-performance polypropylene compound material of high strength, high tenacity and Ultra-Drawing elongation at break.
Summary of the invention
The object of the invention is to develop the polypropylene composite material of a kind of high strength, superelevation elongation at break, to reach all good modified polypropylene materials of rigidity and ductility.
Another object of the present invention is for the preparation method of this polypropylene composite material is provided.
Purpose of the present invention can be achieved through the following technical solutions:
A kind of high strength, high elongation at tear polypropylene composite material are comprised of the raw material of following weight percent:
More preferably: a kind of high strength, high elongation at tear polypropylene composite material are comprised of the raw material of following weight percent:
Wherein,
Described polypropylene is under the 230 ℃ * 2.16kg test condition, homo-polypropylene or the block copolymerization propylene of melt flow rate (MFR) between 0.5-60g/10min, and wherein the comonomer of block copolymerization propylene is ethene, its content is 4-10mol%.
Described ultra-fine inorganic filler is selected from one or more the composition in calcium carbonate, barium sulfate, silicon-dioxide, titanium dioxide, talcum powder, mica, polynite, the kaolin, and described ultra-fine inorganic filler is the mineral filler of median size 0.05-20 μ m.The calcium carbonate of preferred median size 0.5-10 μ m.
Described elastic body toughening agent is any suitable polyolefin elastomer, includes but not limited to one or more the composition in polybutadiene rubber, ethylene, propylene-elastoprene (EPDM), the ethylene-octene copolymer (POE) etc.Preferred POE elastomerics, melt flow rate (MFR) (230 ℃ * 2.16kg) be 0.5-50g/10min.
Described stablizer is thought required primary antioxidant and auxiliary antioxidant for those skilled in the art, and wherein primary antioxidant is hindered phenol or sulphur ester antioxidant, and auxiliary antioxidant is the phosphorite kind antioxidant.
Can also add those skilled in the art and think one or more composition in required tinting material, nucleator, whipping agent, tensio-active agent, softening agent, coupling agent, fire retardant, photostabilizer, processing aid, antistatic auxiliary agent, antimicrobial auxiliary agent, the lubricant.
The preparation method of above-mentioned high strength, high elongation at tear polypropylene composite material, its step is as follows:
1) takes by weighing by weight ratio raw material;
2) raw material is placed super mixer be dry mixed 3-15 minute, mixed raw material is added in the twin screw extruder cooling granulation after melt extruding; Wherein temperature is in the barrel: a district 190-200 ℃, two district 190-210 ℃, three district 190-210 ℃, four district 190-210 ℃, head 190-220 ℃, the twin screw extruder rotating speed is 100-1000 rev/min.
Another kind of preferred method is: take by weighing by weight ratio raw material; Place super mixer to be dry mixed 3-15 minute the raw material except the ultra-fine inorganic filler and make mixture A, mixture A is added twin screw extruder from screw rod tail master spout, the ultra-fine inorganic filler is added twin screw extruder from the screw rod medial side to spout, cooling granulation after melt extruding; Wherein temperature is in the barrel: a district 190-200 ℃, two district 190-210 ℃, three district 190-210 ℃, four district 190-210 ℃, head 190-220 ℃, the twin screw extruder rotating speed is 100-1000 rev/min.
Advantage of the present invention is:
1, uses calcium carbonate superfine powder Ball-type packing filling modified polypropylene material, compare with conventional talc powder modified polypropene, have obviously higher impelling strength, especially have the tension fracture elongation rate of superelevation concurrently, have simultaneously enough anti-bending strengths, rigid-tough balance is good.
2, adopt calcium carbonate superfine powder Rigid Particles Toughened polypropylene material, greatly reduce the consumption of expensive rubber elastomer, have simultaneously higher rigidity and stretching ductility.
3, adopt the sectional feeding mode, the calcium carbonate superfine powder filler is added forcing machine in the screw rod downstream, avoid to greatest extent other component in the melt blending process on the impact that shearing and the dispersion process of superfine spherical particle causes, further improved the performance of matrix material.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail.Scope of the present invention is not subjected to the restriction of these embodiment, and scope of the present invention proposes in claims.
In the composite-material formula of embodiment and Comparative Examples, used polypropylene be melt flow rate (MFR) (230 ℃ * 2.16kg) the block copolymerization propylene of 1-10g/10min, wherein the comonomer of block copolymerization propylene is ethene, its content is in the 4-10mol% scope.
Used talcum powder median size is 5-10 μ m.
Used ultra-fine inorganic filler is the calcium carbonate of median size 1-5 μ m.
The toughening agent is the ethylene-octene copolymer POE8180 of DOW company.
Used stablizer is that the Negonox DSTP(chemical name of Britain ICE company is the stearic alcohol ester of thio-2 acid), the Irganox 1010(chemical name of Ciba company is four [β-(3,5-di-t-butyl 4-hydroxy phenyl) propionic acid] pentaerythritol ester) and the Igrafos168(chemical name of Ciba company be tricresyl phosphite (2,4-di-tert-butyl) ester).
Embodiment 1
Take by weighing by weight percentage polypropylene 94.5%, calcium carbonate superfine powder 5%, Irganox 1010 and be 0.1%, Igrafos 168 is 0.1%, Negonox DSTP is 0.3%, in super mixer, be dry mixed 5 minutes, add again and melt extrude granulation in the twin screw extruder, wherein temperature is in the barrel: 200 ℃ in a district, 210 ℃ in two districts, 210 ℃ in three districts, 210 ℃ in four districts, 220 ℃ of heads, twin screw extruder rotating speed are 400 rev/mins.After drying injection molding sample preparation on injection moulding machine of particle.
Embodiment 2
Take by weighing by weight percentage polypropylene 79.5%, calcium carbonate superfine powder 20%, Irganox 1010 and be 0.1%, Igrafos 168 is 0.1%, Negonox DSTP is 0.3%, in super mixer, be dry mixed 5 minutes, add again and melt extrude granulation in the twin screw extruder, wherein temperature is in the barrel: 200 ℃ in a district, 210 ℃ in two districts, 210 ℃ in three districts, 210 ℃ in four districts, 220 ℃ of heads, twin screw extruder rotating speed are 400 rev/mins.After drying injection molding sample preparation on injection moulding machine of particle.
Embodiment 3
Take by weighing by weight percentage polypropylene 69.5%, calcium carbonate superfine powder 30%, Irganox 1010 and be 0.1%, Igrafos 168 is 0.1%, Negonox DSTP is 0.3%, in super mixer, be dry mixed 5 minutes, add again and melt extrude granulation in the twin screw extruder, wherein temperature is in the barrel: 200 ℃ in a district, 210 ℃ in two districts, 210 ℃ in three districts, 210 ℃ in four districts, 220 ℃ of heads, twin screw extruder rotating speed are 400 rev/mins.After drying injection molding sample preparation on injection moulding machine of particle.
Embodiment 4
Take by weighing by weight percentage polypropylene 59.5%, calcium carbonate superfine powder 40%, Irganox 1010 and be 0.1%, Igrafos 168 is 0.1%, Negonox DSTP is 0.3%, in super mixer, be dry mixed 5 minutes, add again and melt extrude granulation in the twin screw extruder, wherein temperature is in the barrel: 200 ℃ in a district, 210 ℃ in two districts, 210 ℃ in three districts, 210 ℃ in four districts, 220 ℃ of heads, twin screw extruder rotating speed are 400 rev/mins.After drying injection molding sample preparation on injection moulding machine of particle.
Embodiment 5
Take by weighing by weight percentage polypropylene 74.5%, calcium carbonate superfine powder 20%, POE elastomerics 5%, Irganox 1010 and be 0.1%, Igrafos 168 is 0.1%, Negonox DSTP is 0.3%, in super mixer, be dry mixed 5 minutes, add again and melt extrude granulation in the twin screw extruder, wherein temperature is in the barrel: 200 ℃ in a district, 210 ℃ in two districts, 210 ℃ in three districts, 210 ℃ in four districts, 220 ℃ of heads, twin screw extruder rotating speed are 400 rev/mins.After drying injection molding sample preparation on injection moulding machine of particle.
Embodiment 6
Take by weighing by weight percentage polypropylene 69.5%, calcium carbonate superfine powder 20%, POE elastomerics 10%, Irganox 1010 and be 0.1%, Igrafos 168 is 0.1%, Negonox DSTP is 0.3%, in super mixer, be dry mixed 5 minutes, add again and melt extrude granulation in the twin screw extruder, wherein temperature is in the barrel: 200 ℃ in a district, 210 ℃ in two districts, 210 ℃ in three districts, 210 ℃ in four districts, 220 ℃ of heads, twin screw extruder rotating speed are 400 rev/mins.After drying injection molding sample preparation on injection moulding machine of particle.
Embodiment 7
Take by weighing by weight percentage polypropylene 59.5%, calcium carbonate superfine powder 20%, POE elastomerics 20%, Irganox 1010 and be 0.1%, Igrafos 168 is 0.1%, Negonox DSTP is 0.3%, in super mixer, be dry mixed 5 minutes, add again and melt extrude granulation in the twin screw extruder, wherein temperature is in the barrel: 200 ℃ in a district, 210 ℃ in two districts, 210 ℃ in three districts, 210 ℃ in four districts, 220 ℃ of heads, twin screw extruder rotating speed are 400 rev/mins.After drying injection molding sample preparation on injection moulding machine of particle.
Embodiment 8
Take by weighing by weight percentage polypropylene 79.5%, Irganox 1010 and be 0.1%, Igrafos 168 is 0.1%, NegonoxDSTP is 0.3%, is dry mixed 5 minutes in super mixer, makes mixture A; Mixture A added respectively to spout by the screw rod medial side by screw rod tail master spout, calcium carbonate superfine powder 20% melt extrude granulation in the twin screw extruder; Wherein temperature is in the barrel: 200 ℃ in a district, and 210 ℃ in two districts, 210 ℃ in three districts, 210 ℃ in four districts, 220 ℃ of heads, twin screw extruder rotating speed are 400 rev/mins.After drying injection molding sample preparation on injection moulding machine of particle.
Embodiment 9
Take by weighing by weight percentage polypropylene 74.5%, POE elastomerics 5%, Irganox 1010 and be 0.1%, Igrafos 168 is 0.1%, Negonox DSTP is 0.3%, is dry mixed 5 minutes in super mixer, makes mixture A; Mixture A added respectively to spout by the screw rod medial side by screw rod tail master spout, calcium carbonate superfine powder 20% melt extrude granulation in the twin screw extruder; Wherein temperature is in the barrel: 200 ℃ in a district, and 210 ℃ in two districts, 210 ℃ in three districts, 210 ℃ in four districts, 220 ℃ of heads, twin screw extruder rotating speed are 400 rev/mins.After drying injection molding sample preparation on injection moulding machine of particle.
Comparative Examples 1
Take by weighing by weight percentage polypropylene 79.5%, talcum powder 20%, Irganox 1010 and be 0.1%, Igrafos 168 is 0.1%, Negonox DSTP is 0.3%, in super mixer, be dry mixed 5 minutes, add again and melt extrude granulation in the twin screw extruder, wherein temperature is in the barrel: 200 ℃ in a district, 210 ℃ in two districts, 210 ℃ in three districts, 210 ℃ in four districts, 220 ℃ of heads, twin screw extruder rotating speed are 400 rev/mins.After drying injection molding sample preparation on injection moulding machine of particle.
Comparative Examples 2
Take by weighing by weight percentage polypropylene 74.5%, talcum powder 20%, POE elastomerics 10%, Irganox 1010 and be 0.1%, Igrafos 168 is 0.1%, Negonox DSTP is 0.3%, in super mixer, be dry mixed 5 minutes, add again and melt extrude granulation in the twin screw extruder, wherein temperature is in the barrel: 200 ℃ in a district, 210 ℃ in two districts, 210 ℃ in three districts, 210 ℃ in four districts, 220 ℃ of heads, twin screw extruder rotating speed are 400 rev/mins.After drying injection molding sample preparation on injection moulding machine of particle.
Comparative Examples 3
Take by weighing by weight percentage polypropylene 59.5%, talcum powder 20%, POE elastomerics 20%, Irganox 1010 and be 0.1%, Igrafos 168 is 0.1%, Negonox DSTP is 0.3%, in super mixer, be dry mixed 5 minutes, add again and melt extrude granulation in the twin screw extruder, wherein temperature is in the barrel: 200 ℃ in a district, 210 ℃ in two districts, 210 ℃ in three districts, 210 ℃ in four districts, 220 ℃ of heads, twin screw extruder rotating speed are 400 rev/mins.After drying injection molding sample preparation on injection moulding machine of particle.
The performance evaluation mode:
The sample rate test is undertaken by the ISO1183-1 standard; The test of sample tensile property is undertaken by the ISO527-2 standard, and specimen size is 170 * 10 * 4mm, and draw speed is 50mm/min; The bending property test is undertaken by the ISO178 standard, and specimen size is 80 * 10 * 4mm, span 64mm, rate of bending 2mm/min; The test of simply supported beam impact property is undertaken by the ISO179-1 standard, and specimen size is 80 * 10 * 4mm, and notch depth is 1/3rd of sample thickness.
Each embodiment and Comparative Examples prescription and the performance test results are seen following each table:
Table 1 embodiment 1-9 (% by weight)
Table 2 Comparative Examples 1-3 (% by weight)
Table 3 embodiment 1-9 the performance test results
Table 4 Comparative Examples 1-3 the performance test results
Embodiment 1-4 contrast can be found out, along with the adding of calcium carbonate superfine powder and the gradually increase of content, the rigidity of polypropylene material (modulus in flexure) improves gradually, toughness also has clear improvement, especially tension fracture elongation rate occurs increasing substantially near 20% loading level, surpass 20% rear shock strength at loading level and descend gradually, the elongation at break growth eases up.Embodiment 2 relatively can find out with Comparative Examples 1, the polypropylene shock strength that same 20% calcium carbonate superfine powder is filled and elongation at break are far above the material of 20% talc, although rigidity is starkly lower than the latter, also can satisfy the bending resistance requirement of most of plastic part.Embodiment 2 relatively can find out with Comparative Examples 3, even the polypropylene material of talc adds 20% expensive POE elastic body toughening, tension fracture elongation rate is also material modified far below calcium carbonate superfine powder, and the rigidity of material of this moment has been starkly lower than the latter.Embodiment 5-7 and embodiment 2 contrasts can be found out, adding and content increase along with elastomerics POE, material impact intensity improves gradually, and the growth of tension fracture elongation rate is then slower, and the POE addition has begun rapid decline above 5% later rigidity of material.Embodiment 8-9 can find out with embodiment 2,5 contrasts respectively, uses the technique of calcium carbonate superfine powder powder from side spout adding forcing machine, and the material over-all properties has further raising.To sum up, 20% calcium carbonate superfine powder is filled, and the elastomer-modified polypropylene material of 0-5%POE has preferably rigid-tough balance, and the while is with the tension fracture elongation rate of superelevation.
Claims (10)
1. a high strength, high elongation at tear polypropylene composite material, it is characterized in that: the raw material by following weight percent forms:
2. high strength according to claim 1, high elongation at tear polypropylene composite material, it is characterized in that: the raw material by following weight percent forms:
3. high strength according to claim 1 and 2, high elongation at tear polypropylene composite material, it is characterized in that: described polypropylene is under the 230 ℃ * 2.16kg test condition, homo-polypropylene or the block copolymerization propylene of melt flow rate (MFR) between 0.5-60g/10min, wherein the comonomer of block copolymerization propylene is ethene, and its content is 4-10mol%.
4. high strength according to claim 1 and 2, high elongation at tear polypropylene composite material, it is characterized in that: described ultra-fine inorganic filler is selected from one or more the composition in calcium carbonate, barium sulfate, silicon-dioxide, titanium dioxide, talcum powder, mica, polynite, the kaolin, and described ultra-fine inorganic filler is the mineral filler of median size 0.05-20 μ m.The calcium carbonate of preferred median size 0.5-10 μ m.
5. high strength according to claim 1 and 2, high elongation at tear polypropylene composite material, it is characterized in that: described elastic body toughening agent is polyolefin elastomer, is selected from one or more the composition in polybutadiene rubber, ethylene-propylene-elastoprene and the POE.
6. high strength according to claim 5, high elongation at tear polypropylene composite material is characterized in that: preferred POE elastomerics, under the 230 ℃ * 2.16kg test condition, melt flow rate (MFR) is 0.5-50g/10min.
7. high strength according to claim 1 and 2, high elongation at tear polypropylene composite material, it is characterized in that: described stablizer comprises primary antioxidant and auxiliary antioxidant, wherein primary antioxidant is hindered phenol or sulphur ester antioxidant, and auxiliary antioxidant is the phosphorite kind antioxidant.
8. high strength according to claim 1 and 2, high elongation at tear polypropylene composite material is characterized in that: also be added with one or more the composition in required tinting material, nucleator, whipping agent, tensio-active agent, softening agent, coupling agent, fire retardant, photostabilizer, processing aid, antistatic auxiliary agent, antimicrobial auxiliary agent, the lubricant.
9. preparation method who prepares claim 1 or 2 described high strength, high elongation at tear polypropylene composite material, it is characterized in that: its step is as follows:
Take by weighing by weight ratio raw material; Place super mixer to be dry mixed 3-15 minute raw material, mixed raw material is added in the twin screw extruder cooling granulation after melt extruding; Wherein temperature is in the barrel: a district 190-200 ℃, two district 190-210 ℃, three district 190-210 ℃, four district 190-210 ℃, head 190-220 ℃, the twin screw extruder rotating speed is 100-1000 rev/min.
10. preparation method who prepares claim 1 or 2 described high strength, high elongation at tear polypropylene composite material, it is characterized in that: its step is as follows:
Take by weighing by weight ratio raw material; Place super mixer to be dry mixed 3-15 minute the raw material except the ultra-fine inorganic filler and make mixture A, mixture A is added twin screw extruder from screw rod tail master spout, the ultra-fine inorganic filler is added twin screw extruder from the screw rod medial side to spout, cooling granulation after melt extruding; Wherein temperature is in the barrel: a district 190-200 ℃, two district 190-210 ℃, three district 190-210 ℃, four district 190-210 ℃, head 190-220 ℃, the twin screw extruder rotating speed is 100-1000 rev/min.
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103214742A (en) * | 2013-05-10 | 2013-07-24 | 大连聚兴科技有限公司 | High-modulus high-impact high-flow polypropylene and preparation method thereof |
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| CN104562256A (en) * | 2014-12-31 | 2015-04-29 | 方文川 | Spinning-type polypropylene breaking elongation rate improving agent and preparation method thereof |
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| CN108570188A (en) * | 2018-05-31 | 2018-09-25 | 天津瑞杰塑料制品有限公司 | A kind of high-strength ageing polypropylene material and preparation method thereof |
| CN110358191A (en) * | 2019-07-30 | 2019-10-22 | 浙江绍兴三锦石化有限公司 | A kind of high impact copolymer improvement composite material and preparation method |
| CN112341715A (en) * | 2020-11-19 | 2021-02-09 | 天津金发新材料有限公司 | Modified polypropylene composite material for automobile bumper and preparation method thereof |
| CN113817270A (en) * | 2021-11-02 | 2021-12-21 | 常州瑞杰新材料科技有限公司 | Polypropylene composite material and preparation method thereof |
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| CN103214742A (en) * | 2013-05-10 | 2013-07-24 | 大连聚兴科技有限公司 | High-modulus high-impact high-flow polypropylene and preparation method thereof |
| CN104419059A (en) * | 2013-08-29 | 2015-03-18 | 合肥杰事杰新材料股份有限公司 | High-strength high-toughness polypropylene material and preparation method thereof |
| CN104419059B (en) * | 2013-08-29 | 2017-12-01 | 合肥杰事杰新材料股份有限公司 | A kind of polypropylene material and preparation method thereof of high intensity, high tenacity |
| CN103627084A (en) * | 2013-11-12 | 2014-03-12 | 青岛广联达精密机械有限公司 | High-hardness PP (polypropylene) alloy |
| CN103788481B (en) * | 2013-12-25 | 2016-10-19 | 上海金发科技发展有限公司 | A kind of fretting map is molded polypropylene composite and preparation thereof and use |
| CN103788481A (en) * | 2013-12-25 | 2014-05-14 | 上海金发科技发展有限公司 | Micro-foaming injection polypropylene composite, preparation and use thereof |
| CN103739954A (en) * | 2013-12-28 | 2014-04-23 | 重庆普利特新材料有限公司 | Polypropylene composite material for 3D (Three Dimensional) printing and preparation method thereof |
| CN103923381A (en) * | 2013-12-28 | 2014-07-16 | 上海普利特复合材料股份有限公司 | High-modulus and ultrahigh-impact polypropylene composite material and its preparation method |
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| CN103739954B (en) * | 2013-12-28 | 2017-03-08 | 重庆普利特新材料有限公司 | A kind of can be used for PP composite material of 3D printing and preparation method thereof |
| CN104562256A (en) * | 2014-12-31 | 2015-04-29 | 方文川 | Spinning-type polypropylene breaking elongation rate improving agent and preparation method thereof |
| CN104558847A (en) * | 2015-01-07 | 2015-04-29 | 方文川 | Homo-polypropylene beta nucleating agent and preparation method thereof |
| CN104788811A (en) * | 2015-03-31 | 2015-07-22 | 苏州市鼎立包装有限公司 | Polypropylene powder packaging bag and preparation method thereof |
| CN105670110A (en) * | 2015-12-30 | 2016-06-15 | 常州普莱克红梅色母料有限公司 | Polypropylene silencing pipe master batch, preparation method and use method therefor |
| CN108192262A (en) * | 2017-12-26 | 2018-06-22 | 浙江普利特新材料有限公司 | A kind of high tenacity, high convergency, high-flowability polypropylene composite material and preparation method thereof |
| CN108250588A (en) * | 2018-02-09 | 2018-07-06 | 金发科技股份有限公司 | A kind of low brittle temperature, high elongation at tear PP composite material and preparation method thereof |
| CN108250588B (en) * | 2018-02-09 | 2020-07-14 | 金发科技股份有限公司 | Polypropylene composite material with low embrittlement temperature and high elongation at break and preparation method thereof |
| CN108570188A (en) * | 2018-05-31 | 2018-09-25 | 天津瑞杰塑料制品有限公司 | A kind of high-strength ageing polypropylene material and preparation method thereof |
| CN110358191A (en) * | 2019-07-30 | 2019-10-22 | 浙江绍兴三锦石化有限公司 | A kind of high impact copolymer improvement composite material and preparation method |
| CN112341715A (en) * | 2020-11-19 | 2021-02-09 | 天津金发新材料有限公司 | Modified polypropylene composite material for automobile bumper and preparation method thereof |
| CN113817270A (en) * | 2021-11-02 | 2021-12-21 | 常州瑞杰新材料科技有限公司 | Polypropylene composite material and preparation method thereof |
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