CN106479057A - A kind of low-density and high-strength modified polypropylene material and production method - Google Patents
A kind of low-density and high-strength modified polypropylene material and production method Download PDFInfo
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- CN106479057A CN106479057A CN201610978395.1A CN201610978395A CN106479057A CN 106479057 A CN106479057 A CN 106479057A CN 201610978395 A CN201610978395 A CN 201610978395A CN 106479057 A CN106479057 A CN 106479057A
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- 239000000463 material Substances 0.000 title claims abstract description 91
- -1 polypropylene Polymers 0.000 title claims abstract description 58
- 239000004743 Polypropylene Substances 0.000 title claims abstract description 57
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 56
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 239000000203 mixture Substances 0.000 claims abstract description 30
- 239000000843 powder Substances 0.000 claims abstract description 15
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 12
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 12
- 239000003365 glass fiber Substances 0.000 claims abstract description 12
- 239000000945 filler Substances 0.000 claims abstract description 10
- 239000007822 coupling agent Substances 0.000 claims abstract description 6
- 239000000314 lubricant Substances 0.000 claims abstract description 6
- 239000012745 toughening agent Substances 0.000 claims abstract description 6
- 239000002245 particle Substances 0.000 claims abstract description 4
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 15
- 238000002156 mixing Methods 0.000 claims description 8
- 239000000835 fiber Substances 0.000 claims description 7
- 229920006124 polyolefin elastomer Polymers 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 150000001336 alkenes Chemical class 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 4
- 150000002148 esters Chemical class 0.000 claims description 4
- 229920002943 EPDM rubber Polymers 0.000 claims description 3
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical group [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 3
- 150000007513 acids Chemical class 0.000 claims description 3
- 238000007334 copolymerization reaction Methods 0.000 claims description 3
- 229920000578 graft copolymer Polymers 0.000 claims description 3
- 229930195733 hydrocarbon Natural products 0.000 claims description 3
- 150000002430 hydrocarbons Chemical class 0.000 claims description 3
- 229920001912 maleic anhydride grafted polyethylene Polymers 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 150000002989 phenols Chemical class 0.000 claims description 3
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 3
- 229910000077 silane Inorganic materials 0.000 claims description 3
- 239000000344 soap Substances 0.000 claims description 3
- 239000012190 activator Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 150000008301 phosphite esters Chemical class 0.000 claims description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 2
- 230000002708 enhancing effect Effects 0.000 claims 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 claims 1
- 239000004033 plastic Substances 0.000 abstract description 7
- 229920003023 plastic Polymers 0.000 abstract description 7
- 238000010276 construction Methods 0.000 abstract description 3
- 238000011161 development Methods 0.000 abstract description 3
- 239000011347 resin Substances 0.000 abstract description 3
- 229920005989 resin Polymers 0.000 abstract description 3
- 229910052799 carbon Inorganic materials 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 238000012856 packing Methods 0.000 abstract 1
- 239000012779 reinforcing material Substances 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 description 10
- 230000004048 modification Effects 0.000 description 8
- 238000012986 modification Methods 0.000 description 8
- 239000002994 raw material Substances 0.000 description 5
- 238000001994 activation Methods 0.000 description 4
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 3
- 230000004913 activation Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- 241000233805 Phoenix Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000003679 aging effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000002837 carbocyclic group Chemical group 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000002079 cooperative effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000012764 mineral filler Substances 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- C08L23/14—Copolymers of propene
-
- 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
- C08K2201/003—Additives being defined by their diameter
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/08—Polymer mixtures characterised by other features containing additives to improve the compatibility between two polymers
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of low-density and high-strength modified polypropylene material and production method, each component by weight/mass percentage composition proportioning is：Polypropylene 46%～65%, toughener 11%～22%, light powder filler 9%～18%, chopped glass fiber 6%～15%, compatilizer 5%～9%, lubricant 1.8%～3%, coupling agent 0.9%～2.6%, antioxidant 0.5%～0.9%.The present invention selects Hollow Inorganic powder stuffing as packing material, chopped glass fiber is as reinforcing material, make full use of the synergism of the two, and by rational modified technique and production method, ensure that the integrity of Hollow Inorganic powder particle structure while improving Hollow Inorganic powder body with interlaminar resin binding strength, make final material have the excellent properties of low-density and high intensity concurrently.The low-density and high-strength modified polypropylene material of the present invention can meet the manufacture such as automobile, household electrical appliances, track traffic, Aero-Space, steamer, submarine field and modern sponge urban construction field overwhelming majority plastics performance requires, and promotes the energy-saving and emission-reduction of above-mentioned field and low-carbon environment-friendly development.
Description
Technical field
The invention belongs to technical field of polymer materials, more particularly, to a kind of density is low, high mechanical strength modification poly- third
Alkene material and production method.
Background technology
Polypropylene is the polymer with propylene for monomer, and intensity is high, and hardness is big, wear-resisting, resist bending fatigue, resistance to
Heat, moisture-proof and chemical resistance are all good, are easily worked molding, the advantages of cheap, have higher resistance to impact, engineering propertiess
Tough, anti-multiple organic solvents and acid and alkali corrosion, are widely used in industrial quarters.But polypropylene material has shrinkage factor
Greatly, product size stability is poor, easily produces buckling deformation；Low temperature easy fracture, low-temperature flexibility are poor；Fast light, heat aging property
Difference the shortcomings of it is necessary to be modified to polypropylene material, to meet the use requirement of final plastic.
At present, the method that polypropylene material is modified is had：Plasma surface modification, additive modification, blending and modifying
Polymer.Additive modification polypropylene fibre makes it have multiple new capabilities, such as shock resistance, antistatic property, antibiotic property, disappear
Smelly health care, synthesis etc..As using 0.25% beta crystal-type nucleater modified polypropylene fiber, plus after people is nucleater modified, generate
Modified Beta-crystalline polyacrylic fiber, reduces polypropylene molecule amount and its distribution, improves the spinnability of polypropylene fibre, its
Shock resistance increases substantially.Chinese patent CN1916067 discloses a kind of modified, weather resisting polypropylene material, is mainly used in making
Make household electrical appliance parts, such as air conditioner outdoor shell and auto parts machinery such as instrumental panel, bumper etc., the weight of its raw material
Percentage ratio consists of：Acrylic resin 65%-85%, plasticized modifier 1%-18%, mineral reinforcements 0%-25%, even
Connection agent 0.1%-0.8%, processing aid 0.2%-2%, light stabilizer 0.2%-2%, coloring agent 0.2%-1.5%.Should
Invent compared with material modified and existing polypropylene material, weather-proof, ageing resistace significantly improves, but mechanical strength is changed
Kind, the density of material is still higher.A large number of experiments show that, when in polypropylene, inorganic mineral filler loading is increased to by 0
During 40wt.%, density of material can be by the 0.89g/cm of virgin pp3～0.92g/cm3Rapidly increase to 1.20g/cm3~
1.24g/cm3.
Now, plastics and steel, timber, cement have together constituted with four big basic materials of modern industry, and with material
The development of material technology and the continuous improvement of energy-conservation, low-carbon environment-friendly requirement, its application has much surmounted other three great traditions
Industry.To mould Dai Gang, to mould Dai Mu, to become automobile, household electrical appliances, track traffic, Aero-Space, steamer, submarine etc. already light-weighted
Important channel.However, being seen everywhere, for the light-weighted research of plastics for modifying plastics and the report of machine-shaping and patent
With patent but phoenix feathers and unicorn horns.Although patent CN 104629174 A discloses a kind of lightweight polypropylene material, patent CN
104774377 A disclose a kind of light-weight environment-friendly polypropylene composite, but conscientiously investigate its formula composition it is found that these institutes
Really can not play the component of lighting in the lightweight polypropylene material of meaning, and in description, all not mention final polypropylene
Material advantage in terms of density with conventional market material.Even if on the other hand have minority external product can meet requirement, but valency
Lattice are sufficiently expensive, lead to final products cost performance relatively low, and the heavy industrialization strictly limiting this material is implemented and applied.
Content of the invention
The purpose of the present invention is aiming at that existing modified polypropylene material density is big, comprcssive strength is low, is difficult to industrially
The defect implemented, and provide a kind of cost performance high, can the low-density and high-strength modified polypropylene material implemented of heavy industrialization.
It is a further object to provide a kind of production method of low-density and high-strength modified polypropylene material.
For realizing the above-mentioned purpose of the present invention, a kind of present invention low-density and high-strength modified polypropylene material adopts following skill
Art scheme：
A kind of present invention low-density and high-strength modified polypropylene material is to be mixed with by following components, proportioning to form, former
Expect that each component is as follows by weight/mass percentage composition proportioning：
Described polypropylene is HOPP, COPP or both mixture, and its melt flow rate (MFR) is
10g/10min～100g/10min；When used as a mixture, HOPP and the polyacrylic ratio of copolymerization control 2～4 it
Between, to play the cooperative effect of the two.
Described toughener is one of ethylene propylene diene rubber, polyolefin elastomer or both mixture.
Described light powder filler be particle diameter distribution between 2 μm～200 μm, true density is in 0.20～0.60g/cm3、
The hollow glass micropearl of anti-air pressure level 12MPa.
Described chopped glass fiber exists in 3.0mm～6.0mm, fibre diameter for length
10 μm～13 μm of RPP alkali-free chopped glass fiber.
Described compatilizer is maleic anhydride grafted polymer between 0.65%～0.90% for the maleic anhydride grafting ratio,
Preferably one of maleic anhydride inoculated polypropylene, maleic anhydride grafted polyethylene, maleic anhydride stem grafting polyolefin elastomer or
Two kinds and above mixture.
Described lubricant is one of hydro carbons, fitter acids and its ester class, metal soap or two kinds and above mixing
Thing.
Described coupling agent is silane coupler containing amino.
Described antioxidant is the mixture of Hinered phenols antioxidant and phosphite ester kind antioxidant.
A kind of present invention low-density and high-strength modified polypropylene material, it is preferred that feed components press weight/mass percentage composition proportioning
For：
A kind of production method of present invention low-density and high-strength modified polypropylene material adopts following steps：
(1) polypropylene of formula ratio, toughener, compatilizer, lubricant and antioxidant are mixed in high-speed mixer, high
Fast mixer rotating speed controls in 600rpm～1500rpm, final material temperature control at 70 DEG C～80 DEG C, after material mix homogeneously
Discharging is standby；
(2) light powder filler activator will be carried out in the light powder filler of formula ratio, coupling agent addition high-speed mixer
Modification, high-speed mixer rotating speed controls in 500rpm～9000rpm, and final material temperature control is at 85 DEG C～95 DEG C；
(3) material preparing step (2) is mixed homogeneously under room temperature in high-speed mixer with chopped glass fiber, mixed at high speed
Machine rotating speed controls in 300rpm～500rpm；
(4) material prepared by step (1) and step (2) and chopped glass fiber, or prepared by step (1) and step (3)
Material sends into melting double screw extruder, mixing, pelletize from main spout and side spout respectively；During extrusion processing, machine barrel
Temperature control is at 190 DEG C～230 DEG C.
By the enforcement of above technical scheme, compared with prior art, a kind of low-density and high-strength of the present invention modified poly- third
Alkene material and production method have many advantages, such as：
1. beforehand through coupling agent, surface activation process is carried out to light powder filler, effectively improving inorganic filler is having
Dispersibility in machine resin and its binding strength and between organic resin, and Hollow Inorganic be ensure that by side spout introducing
The structural intergrity of powder stuffing, reaches the purpose of material lighting.
2. adopt rigidity light powder stuffing as palliative, can while improving the mechanical property of materials precise control
Density of material, effectively prevents glass from leaking outside, and raw materials wide material sources, and homemade goodses can meet requirement, gained material
Material cost performance is high.
3. the present invention makes full use of the synergy of light powder filler and chopped glass fiber, low-density same reducing material
When effectively increase the mechanical strength of material.
4. density of material of the present invention is low, intensity is high, can meet automobile, household electrical appliances, track traffic, Aero-Space, steamer, submarine
Require in manufacture field and modern sponge urban construction field overwhelming majority plastics performance, promote above-mentioned field energy-saving and emission-reduction and low
Carbocyclic ring protects development, and preparation process is simple, can implement heavy industrialization.
Specific embodiment
For preferably describing the present invention, with reference to embodiment, the present invention is used for kind of low-density and high-strength modified poly- third
Alkene material and production method are described in further details.But the invention is not limited in embodiment.Involved percentage in embodiment
Than all by weight percentage.
Embodiment 1：
A kind of low-density and high-strength modified polypropylene material, its formula is as follows：
Its production method comprises the following steps：
A. by the M2600R of formula ratio, EPDM3745P, maleic anhydride inoculated polypropylene, Tissuemat E and antioxidant 1010
High-speed mixer mixes, high-speed mixer rotating speed controls in 500rpm～1500rpm, and final material temperature control is at 70 DEG C
～80 DEG C, after material mix homogeneously, discharging is standby；
B. GS60, KH-550 of formula ratio are added in high-speed mixer and carry out activation modification, high-speed mixer rotating speed control
In 500rpm～1000rpm, final material temperature control exists system
85 DEG C～95 DEG C；
C. the material of step b preparation is mixed homogeneously under room temperature in high-speed mixer with T438, high-speed mixer rotating speed
Control in 300rpm～500rpm；
D. by the material of step a and the preparation of step b and T438, or the material of step a and the preparation of step c is fed from main respectively
Material mouth and side spout send into melting in double screw extruder, mixing, pelletize, and during extrusion processing, extruder barrel temperature control is at 180 DEG C
～240 DEG C.
Embodiment 2：
A kind of low-density and high-strength modified polypropylene material, its formula is as follows：
Its production method comprises the following steps：
A. by the Y3000 of formula ratio, POE5371, maleic anhydride inoculated polypropylene, Tissuemat E and antioxidant 1010 in height
Mix in fast mixer, high-speed mixer rotating speed controls in 500rpm～1500rpm, final material temperature control is 70 DEG C～80
DEG C, after material mix homogeneously, discharging is standby；
B. GS60, KH-550 of formula ratio are added in high-speed mixer and carry out activation modification, high-speed mixer rotating speed control
, in 500rpm～1000rpm, final material temperature control is at 85 DEG C～95 DEG C for system；
C. the material of step b preparation is mixed homogeneously under room temperature in high-speed mixer with S508A, high-speed mixer rotating speed
Control in 300rpm～500rpm；
D. by the material of step a and the preparation of step b and S508A, or the material of step a and the preparation of step c is respectively from master
Spout and side spout send into melting in double screw extruder, mixing, pelletize, and during extrusion processing, extruder barrel temperature control is 180
DEG C～240 DEG C.
Embodiment 3：
A kind of low-density and high-strength modified polypropylene material, its formula is as follows：
Its production method comprises the following steps：
A. by the K9920 of formula ratio, K2420, POE5371, maleic anhydride inoculated polypropylene, Tissuemat E and antioxidant
1010 mix in high-speed mixer, and high-speed mixer rotating speed controls in 500rpm～1500rpm, and final material temperature control exists
70 DEG C～80 DEG C, after material mix homogeneously, discharging is standby；
B. GS60, KH-550 of formula ratio are added in high-speed mixer and carry out activation modification, high-speed mixer rotating speed control
, in 500rpm～1000rpm, final material temperature control is at 85 DEG C～95 DEG C for system；
C. the material of step b preparation is mixed homogeneously under room temperature in high-speed mixer with S508A, high-speed mixer rotating speed
Control in 300rpm～500rpm；
D. by the material of step a and the preparation of step b and S508A, or the material of step a and the preparation of step c is respectively from master
Spout and side spout send into melting in double screw extruder, mixing, pelletize, and during extrusion processing, extruder barrel temperature control is 180
DEG C～240 DEG C.
The physical parameter of the low-density and high-strength modified polypropylene material obtained by above example 1～embodiment 3 such as table 1
Shown：
The physical parameter of the low-density and high-strength modified polypropylene material that table 1 embodiment 1～3 is obtained
Table 2 presses weight/mass percentage composition (%) for the embodiment of the present invention 4～10 feed components.
Table 2 embodiment of the present invention 4～10 feed components press weight/mass percentage composition (%)
Raw material components in embodiment 4～6 are same as Example 1, the raw material components in embodiment 7～8 and embodiment 2 phase
With the raw material components in embodiment 9～10 are same as Example 3.
Testing inspection shows, the physical parameter of the low-density and high-strength modified polypropylene material obtained by embodiment 4～10
As shown in table 3：
The physical parameter of the low-density and high-strength modified polypropylene material that table 3 embodiment 4～10 is obtained
From table 1, table 3 as can be seen that gained low-density and high-strength modified polypropylene material of the present invention has relatively low density
With excellent mechanical performance, compared with prior art there are substantive features and significantly improve.Gained low-density high-strength of the present invention
Degree modified polypropylene material is suitable for the manufacture such as automobile, household electrical appliances, track traffic, Aero-Space, steamer, submarine field and modern sea
Continuous urban construction field overwhelming majority plastics performance requires.
Above example only supplies purposes of discussion of the present invention, can not be limited the scope of the invention with this, be familiar with this neck
The technical staff in domain can also make various conversion according to the spirit of the present invention or modify, therefore all equal technical sides
Case also all should be included within the scope of the present invention.
Claims (10)
1. a kind of low-density and high-strength modified polypropylene material is it is characterised in that be to be mixed with by following components, proportioning to form,
Feed components by weight/mass percentage composition proportioning are：
2. as claimed in claim 1 a kind of low-density and high-strength modified polypropylene material it is characterised in that the quality of each component
Percentage composition proportioning is：
3. as claimed in claim 1 or 2 a kind of low-density and high-strength modified polypropylene material it is characterised in that：Described is poly-
Propylene is HOPP, COPP or both mixture, and its melt flow rate (MFR) is 10g/10min～100g/
10min.
4. as claimed in claim 3 a kind of low-density and high-strength modified polypropylene material it is characterised in that：Described polypropylene
For the mixture of HOPP, both COPPs, HOPP and the polyacrylic ratio of copolymerization control 2～4 it
Between.
5. as claimed in claim 3 a kind of low-density and high-strength modified polypropylene material it is characterised in that：Described toughener
For one of ethylene propylene diene rubber, polyolefin elastomer or both mixture.
6. as claimed in claim 5 a kind of low-density and high-strength modified polypropylene material it is characterised in that：Described light powder
Body filler be particle diameter distribution between 2 μm～200 μm, true density is in 0.20～0.60g/cm3, anti-air pressure level 12MPa
Hollow glass micropearl；Described chopped glass fiber is that length is gathered in 10 μm～13 μm of enhancing in 3.0mm～6.0mm, fibre diameter
Propylene alkali-free chopped glass fiber.
7. as claimed in claim 6 a kind of low-density and high-strength modified polypropylene material it is characterised in that：Described compatilizer
For maleic anhydride grafted polymer between 0.65%～0.90% for the maleic anhydride grafting ratio, preferably maleic anhydride grafting poly- third
One of alkene, maleic anhydride grafted polyethylene, maleic anhydride stem grafting polyolefin elastomer or two kinds and above mixture；Institute
The lubricant stated is one of hydro carbons, fitter acids and its ester class, metal soap or two kinds and above mixture；Described idol
Connection agent is silane coupler containing amino；Described antioxidant is the mixing of Hinered phenols antioxidant and phosphite ester kind antioxidant
Thing.
8. as claimed in claim 4 kind of low-density and high-strength modified polypropylene material it is characterised in that：Described toughener is
One of ethylene propylene diene rubber, polyolefin elastomer or both mixture；Described light powder filler is particle diameter distribution
Between 2 μm～200 μm, true density is in 0.20～0.60g/cm3, the hollow glass micropearl of anti-air pressure level 12MPa；Described
Chopped glass fiber be length 3.0mm～6.0mm, fibre diameter 10 μm～13 μm RPP alkali-free be chopped glass
Fine；Described compatilizer is maleic anhydride grafted polymer between 0.65%～0.90% for the maleic anhydride grafting ratio, preferably
One of maleic anhydride inoculated polypropylene, maleic anhydride grafted polyethylene, maleic anhydride stem grafting polyolefin elastomer or two kinds
And above mixture；Described lubricant be one of hydro carbons, fitter acids and its ester class, metal soap or two kinds and more than
Mixture；Described coupling agent is silane coupler containing amino；Described antioxidant is Hinered phenols antioxidant and phosphorous
The mixture of acid esters kind antioxidant.
9. as claimed in claim 7 a kind of production method of low-density and high-strength modified polypropylene material it is characterised in that adopting
Use following processing step：
1) polypropylene of formula ratio, toughener, compatilizer, lubricant and antioxidant are mixed in high-speed mixer, mixed at a high speed
Conjunction machine rotating speed controls in 600rpm～1500rpm, final material temperature control at 70 DEG C～80 DEG C, discharging after material mix homogeneously
Standby；
It is 2) modified by carrying out light powder filler activator in the light powder filler of formula ratio, coupling agent addition high-speed mixer,
High-speed mixer rotating speed controls in 500rpm～9000rpm, and final material temperature control is at 85 DEG C～95 DEG C；
3) material preparing step (2) is mixed homogeneously under room temperature in high-speed mixer with chopped glass fiber, and high-speed mixer turns
Speed controls in 300rpm～500rpm；
4) material prepared by step (1) and step (2) and chopped glass fiber, or material prepared by step (1) and step (3) divides
Do not send into melting double screw extruder, mixing, pelletize from main spout and side spout；During extrusion processing, barrel zone temperature control
System is at 190 DEG C～230 DEG C.
10. as claimed in claim 9 a kind of production method of low-density and high-strength modified polypropylene material it is characterised in that：
Described polypropylene is HOPP, the mixture of both COPPs, HOPP and the polyacrylic ratio of copolymerization
Control between 2～4.
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| CN107236189A (en) * | 2017-06-26 | 2017-10-10 | 吉利汽车研究院（宁波）有限公司 | Low-density Long Glass Fiber Reinforced PP Composite and preparation method thereof |
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| CN112029200A (en) * | 2020-08-07 | 2020-12-04 | 东风商用车有限公司 | Low-density thermoplastic dynamic vulcanized rubber material and preparation method and application thereof |
| CN111978635A (en) * | 2020-08-17 | 2020-11-24 | 成都金发科技新材料有限公司 | Antibacterial and antiviral polypropylene material for automobile air conditioner shell and preparation method thereof |
| CN115926322A (en) * | 2022-12-30 | 2023-04-07 | 青岛国恩科技股份有限公司 | Automobile lightweight polypropylene composite material and preparation method thereof |
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