CN108948521A - A kind of high fluidity punching proof acrylic material - Google Patents
A kind of high fluidity punching proof acrylic material Download PDFInfo
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- CN108948521A CN108948521A CN201810616765.6A CN201810616765A CN108948521A CN 108948521 A CN108948521 A CN 108948521A CN 201810616765 A CN201810616765 A CN 201810616765A CN 108948521 A CN108948521 A CN 108948521A
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- high fluidity
- acrylic material
- proof acrylic
- material according
- polypropylene
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- 239000000463 material Substances 0.000 title claims abstract description 52
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 238000004080 punching Methods 0.000 title claims abstract description 21
- -1 polypropylene Polymers 0.000 claims abstract description 49
- 239000004743 Polypropylene Substances 0.000 claims abstract description 48
- 229920001155 polypropylene Polymers 0.000 claims abstract description 48
- 239000000843 powder Substances 0.000 claims abstract description 22
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 19
- 239000002667 nucleating agent Substances 0.000 claims abstract description 19
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 18
- 239000006096 absorbing agent Substances 0.000 claims abstract description 17
- 239000000314 lubricant Substances 0.000 claims abstract description 17
- 150000002978 peroxides Chemical class 0.000 claims abstract description 16
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000005977 Ethylene Substances 0.000 claims abstract description 14
- 239000002994 raw material Substances 0.000 claims abstract description 5
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims description 23
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 23
- 238000006243 chemical reaction Methods 0.000 claims description 21
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 20
- 239000001257 hydrogen Substances 0.000 claims description 20
- 229910052739 hydrogen Inorganic materials 0.000 claims description 20
- 239000003426 co-catalyst Substances 0.000 claims description 12
- 238000006116 polymerization reaction Methods 0.000 claims description 11
- 239000007795 chemical reaction product Substances 0.000 claims description 10
- 239000003054 catalyst Substances 0.000 claims description 9
- 239000007789 gas Substances 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 8
- 238000002360 preparation method Methods 0.000 claims description 7
- 238000010574 gas phase reaction Methods 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- FGHOOJSIEHYJFQ-UHFFFAOYSA-N (2,4-ditert-butylphenyl) dihydrogen phosphite Chemical class CC(C)(C)C1=CC=C(OP(O)O)C(C(C)(C)C)=C1 FGHOOJSIEHYJFQ-UHFFFAOYSA-N 0.000 claims description 4
- 150000007942 carboxylates Chemical group 0.000 claims description 4
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 3
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical group [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 3
- 239000008116 calcium stearate Substances 0.000 claims description 3
- 235000013539 calcium stearate Nutrition 0.000 claims description 3
- FKRCODPIKNYEAC-UHFFFAOYSA-N ethyl propionate Chemical compound CCOC(=O)CC FKRCODPIKNYEAC-UHFFFAOYSA-N 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000012986 modification Methods 0.000 abstract description 6
- 230000004048 modification Effects 0.000 abstract description 6
- 238000004806 packaging method and process Methods 0.000 abstract description 5
- 238000001746 injection moulding Methods 0.000 abstract description 3
- 239000000047 product Substances 0.000 description 16
- 235000006708 antioxidants Nutrition 0.000 description 10
- 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 6
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 description 4
- 239000002216 antistatic agent Substances 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- 102000004895 Lipoproteins Human genes 0.000 description 2
- 108090001030 Lipoproteins Proteins 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- CKQVRZJOMJRTOY-UHFFFAOYSA-N octadecanoic acid;propane-1,2,3-triol Chemical compound OCC(O)CO.CCCCCCCCCCCCCCCCCC(O)=O CKQVRZJOMJRTOY-UHFFFAOYSA-N 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- VOITXYVAKOUIBA-UHFFFAOYSA-N triethylaluminium Chemical compound CC[Al](CC)CC VOITXYVAKOUIBA-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 238000010094 polymer processing Methods 0.000 description 1
Classifications
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/10—Esters; Ether-esters
- C08K5/101—Esters; Ether-esters of monocarboxylic acids
- C08K5/103—Esters; Ether-esters of monocarboxylic acids with polyalcohols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F110/00—Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F110/04—Monomers containing three or four carbon atoms
- C08F110/06—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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/13—Phenols; Phenolates
- C08K5/134—Phenols containing ester groups
- C08K5/1345—Carboxylic esters of phenolcarboxylic acids
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/14—Peroxides
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/524—Esters of phosphorous acids, e.g. of H3PO3
- C08K5/526—Esters of phosphorous acids, e.g. of H3PO3 with hydroxyaryl compounds
Landscapes
- 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)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
The invention discloses a kind of high fluidity punching proof acrylic materials, ethylene contents 8~14%, rubber content 14~17%, 30~40g/10min of melt flow rate (MFR), it is prepared by polypropylene powder, lubricant, primary antioxidant, auxiliary antioxidant, halogen-absorber, nucleating agent and peroxide for primary raw material, the wherein ethylene contents 8~14% of the polypropylene powder, rubber content 14~17%, 3~6g/10min of melt flow rate (MFR).The material has good mobile performance and erosion-resisting characteristics, is applicable in the injection molding of large thin-walled products, which may not need modification and be directly used in the large thin-walled products such as automobile, household article, packaging, to cut down the number of intermediate links, reduces production cost.
Description
Technical field
The present invention relates to polypropylene materials, and in particular to a kind of high fluidity punching proof acrylic material.
Technical background
In acrylic resin field, polypropylene by its hardness, impact resistance, in terms of excellent properties with
And recuperability, quickly become most popular one of the requirement product in market.Height flowing impact polypropylene generally refers to melt
Flow rate (MFR) >=20g/10min impact polypropylene, the resinoid are high in addition to also having with high fluidity of molten
Impact strength and preferable rigidity and toughness.
The raising of acrylic resin mobility can reduce cavity pressure in processing and forming.It under normal conditions, is by mentioning
High processing temperature reduces injection pressure, and then reduces product deformation.Select high fluidity punching proof acrylic after, processing temperature and
Injection pressure can reduce, and can inhibit deformation of products to a certain extent, improve product quality, reduce power consumption of polymer processing.Mesh
Before, high fluidity punching proof acrylic is mainly used in the injection molding of large thin-walled products, as family's electrical article, auto parts and components,
Industrial part, office appliance, furniture, toy and food and medical package etc., greatly automobile, household article, packaging etc. are big
The manufacturing development of type thin-walled.
Summary of the invention
The object of the present invention is to provide a kind of high fluidity punching proof acrylic material, which has good mobile performance
And erosion-resisting characteristics, it is applicable in the injection molding of large thin-walled products, which may not need modification and be directly used in automobile, household system
The large thin-walled products such as product, packaging reduce production cost to cut down the number of intermediate links.
The present invention uses following technical scheme, a kind of high fluidity punching proof acrylic material, ethylene contents 8~14%, rubber
Glue content 14~17%, 30~40g/10min of melt flow rate (MFR) are anti-by polypropylene powder, lubricant, primary antioxidant, auxiliary
Oxygen agent, halogen-absorber, nucleating agent and peroxide are prepared for primary raw material, wherein the ethylene of the polypropylene powder
Content 8~14%, rubber content 14~17%, 3~6g/10min of melt flow rate (MFR).
As an embodiment of the present invention, the mass parts of each primary raw material are as follows:
90.5~99.8 parts of polypropylene powder, 0.05~0.15 part of lubricant
0.05~0.15 part of primary antioxidant, 0.05~0.15 part of auxiliary antioxidant
0.05~0.15 portion of halogen-absorber, 0.05~0.25 part of nucleating agent
0.05~0.15 part of peroxide.
Preferably, polypropylene powder of the present invention is prepared by hydrogen-regulating method, and specifically, preparation step is as follows:
(1) propylene is under the collective effect of major catalyst, co-catalyst and external electron donor, through pre-polymerization reactor by third
Alkene polymerization generates polypropylene；
(2) polypropylene obtained by step (1) enters the first annular-pipe reactor with fresh propylene and hydrogen and continues to gather
Reaction is closed,；
(3) polymeric reaction product and fresh propylene and hydrogen obtained by step (2) continues into the second annular-pipe reactor
It is polymerize；
(4) polymeric reaction product obtained by step (3) enters gas phase reaction kettle after flashing de- liquid propylene and carries out
Reaction obtains ethylene contents 8~14%, and it is 3~6g/10min polypropylene powder that melt flow rate (MFR), which is made,.
The ratio 0.4~0.6 of antistatic agent and co-catalyst described in the step (1).The major catalyst is megalosphericus
Catalyst, co-catalyst are triethyl aluminum, external electron donor DONOR-C.
The density of hydrogen of first endless tube described in the step (2) is 1500 ± 200ppm.
The endless tube density of first endless tube described in the step (2) is 540~560kg/m3。
The reaction temperature and pressure of the step (2) and (3) are all the same, and specially reaction temperature is 70 ± 1 DEG C, reaction pressure
Power is 3.4 ± 0.1MPa.
The density of hydrogen of second endless tube described in the step (3) is 1500 ± 200ppm.
580~600kg/m of endless tube density of second endless tube described in the step (3)3。
80 ± 5 DEG C of temperature of step (4) the control gas phase reaction kettle, material position 70~80%, gas compares 0.43~0.45.
Above-mentioned polypropylene material, the lubricant are single stearic acid glycerine lipoprotein.
Above-mentioned polypropylene material, the halogen-absorber are calcium stearate.
Above-mentioned polypropylene material, the primary antioxidant are 3- (3,5 pairs of tertiary butyl -4- hydroxy-cyclohexyls) propionic ester
(1010)。
Above-mentioned polypropylene material, the auxiliary antioxidant are three (2,4- di-tert-butyl-phenyl) phosphite esters (168).
Above-mentioned polypropylene material, the nucleating agent are metal carboxylate nucleating agent.
Above-mentioned polypropylene material, the peroxide are dual-tert-butyl cumyl peroxide.
Second purpose of the invention is to provide the preparation method of above-mentioned polypropylene material, specifically, the polypropylene material
The method of material, comprising the following steps:
(1) by polypropylene powder and lubricant, antioxidant 1010, auxiliary antioxidant 168, halogen-absorber, nucleating agent, mistake
Oxide is mixed to get mixed material；
(2) mixed material made from, which is added in extruder, carries out extruding pelletization, and load is 8~12 ton/hours, screw speed
It is 160~250 revs/min, squeezing out barrel temperature is 180~230 DEG C, and cooling water temperature is 55~65 DEG C.
Compared with the prior art, the invention has the following beneficial effects:
By the present invention in that with metal carboxylate nucleating agent, cooperation lubricant, antioxidant, halogen-absorber and polypropylene powder
Material mixing squeezes out to obtain a kind of high fluidity, high impact resistance polypropylene through extruder under the action of peroxide.The material can
To be directly used in the large thin-walled products such as automobile, household article, packaging without modification, to cut down the number of intermediate links, production is reduced
Cost.
Specific embodiment
Below with reference to the embodiment technical solution that the present invention will be described in detail.Extrusion granulation system used in embodiment is day
The model CMP215 twin-screw extruder pelletizer of this JSW manufacture, designed capacity is up to 6~14 ton/hours.
In following embodiment, lubricant is single stearic acid glycerine lipoprotein.
Antioxidant is 3- (3,5 pairs of tertiary butyl -4- hydroxy-cyclohexyls) propionic ester (1010).
Auxiliary antioxidant is three (2,4- di-tert-butyl-phenyl) phosphite esters (168)
Halogen-absorber is calcium stearate.
Nucleating agent is metal carboxylate nucleating agent.
Peroxide is dual-tert-butyl cumyl peroxide.
Major catalyst is megalosphericus catalyst, and co-catalyst is triethyl aluminum, external electron donor DONOR-C.
Embodiment one
99.42 parts of polypropylene material, 0.06 part of lubricant, 0.1 part of antioxidant 1010,168 0.1 parts of auxiliary antioxidant,
0.07 part of halogen-absorber, 0.14 part and 0.11 part of peroxide of nucleating agent.
Preparation method:
Step 1: polypropylene powder preparation.
(1) propylene is under the collective effect of major catalyst, co-catalyst and external electron donor, through pre-polymerization reactor by third
Alkene polymerization generates polypropylene, controls the ratio 0.43 of antistatic agent and co-catalyst.
(2) the prepolymerization product and fresh propylene and hydrogen obtained by step (1) enter the first annular-pipe reactor after
Continuous to carry out polymerization reaction, the density of hydrogen of the first endless tube of control is 1500 ± 200ppm, and reaction temperature is 70 ± 1 DEG C, reaction pressure
Power is 3.4 ± 0.1MPa, endless tube density 545kg/m3。
(3) polymeric reaction product and fresh propylene and hydrogen obtained by step (2) continues into the second annular-pipe reactor
It is polymerize, the density of hydrogen of the second endless tube of control is 1500 ± 200ppm, and reaction temperature is 70 ± 1 DEG C, reaction pressure 3.4
± 0.1MPa, endless tube density 590kg/m3。
(4) polymeric reaction product obtained by step (3) enters gas phase reaction kettle, control after flashing de- liquid propylene
80 ± 5 DEG C of the temperature of gas phase kettle, material position 75%, gas is compared to 0.43, final ethylene contents 10%, and obtained melt flow rate (MFR) is
5.3g/10min polypropylene powder.
Step 2: by polypropylene powder and lubricant, antioxidant 1010, auxiliary antioxidant 168, halogen-absorber, nucleation
Agent, peroxide are mixed to get mixed material.
Step 3: mixed material obtained is added in extruder, and load is 10 ton/hours, and screw speed is 183 revs/min
Clock, each section of barrel temperature of extruder are 200 DEG C, and cooling water temperature is 60 DEG C.
It is 12.1% that ethylene contents, which are made, and melt flow rate (MFR) is the high fluidity punching proof acrylic material of 37.6g/10min
Material.
The mechanical property of products obtained therefrom is shown in invention effect subordinate list 1.
Embodiment two
Polypropylene material: copolymer polypropylene: 99.44 parts；Lubricant: 0.07 part, antioxidant 1010: 0.08 part, auxiliary it is anti-
168:0.08 parts of oxygen agent, halogen-absorber: 0.07 part, nucleating agent: 0.16 part, 0.1 part of peroxide.
Preparation method:
Step 1:(1) propylene is under the collective effect of major catalyst, co-catalyst and external electron donor, through prepolymerization
Propylene polymerization is generated polypropylene by device, controls the ratio 0.45 of antistatic agent and co-catalyst.
(2) the prepolymerization product and fresh propylene and hydrogen obtained by step (1) enter the first annular-pipe reactor after
Continuous to carry out polymerization reaction, the density of hydrogen of the first endless tube of control is 1500 ± 200ppm, and reaction temperature is 70 ± 1 DEG C, reaction pressure
Power is 3.4 ± 0.1MPa, endless tube density 550kg/m3。
(3) polymeric reaction product and fresh propylene and hydrogen obtained by step (2) continues into the second annular-pipe reactor
It is polymerize, the density of hydrogen of the second endless tube of control is 1500 ± 200ppm, and reaction temperature is 70 ± 1 DEG C, reaction pressure 3.4
± 0.1MPa, endless tube density 585kg/m3。
(4) polymeric reaction product obtained by step (3) enters gas phase reaction kettle, control after flashing de- liquid propylene
80 ± 5 DEG C of the temperature of gas phase kettle, material position 75%, gas is compared to 0.44, final ethylene contents 11%, and obtained melt flow rate (MFR) is
4.8g/10min polypropylene powder.
Step 2: by polypropylene powder and lubricant, antioxidant 1010, auxiliary antioxidant 168, halogen-absorber, nucleation
Agent, peroxide are mixed to get mixed material.
Step 3: mixed material obtained is added in extruder, and load is 10 ton/hours, and screw speed is 183 revs/min
Clock, each section of barrel temperature of extruder are 200 DEG C, and cooling water temperature is 60 DEG C.
It is 12.4% that ethylene contents, which are made, and melt flow rate (MFR) is the high fluidity punching proof acrylic material of 36.3g/10min
Material.
The mechanical property of products obtained therefrom is shown in invention effect subordinate list 1.
Embodiment three
Polypropylene material: copolymer polypropylene: 99.44 parts；Lubricant: 0.07 part, antioxidant 1010: 0.1 part, auxiliary antioxygen
168:0.05 parts of agent, halogen-absorber: 0.08 part, nucleating agent: 0.13 part, 0.13 part of peroxide.
Preparation method:
Step 1:(1) propylene is under the collective effect of major catalyst, co-catalyst and external electron donor, through prepolymerization
Propylene polymerization is generated polypropylene by device, controls the ratio 0.44 of antistatic agent and co-catalyst.
(2) the prepolymerization product and fresh propylene and hydrogen obtained by step (1) enter the first annular-pipe reactor after
Continuous to carry out polymerization reaction, the density of hydrogen of the first endless tube of control is 1500 ± 200ppm, and reaction temperature is 70 ± 1 DEG C, reaction pressure
Power is 3.4 ± 0.1MPa, endless tube density 550kg/m3。
(3) polymeric reaction product and fresh propylene and hydrogen obtained by step (2) continues into the second annular-pipe reactor
It is polymerize, the density of hydrogen of the second endless tube of control is 1500 ± 200ppm, and reaction temperature is 70 ± 1 DEG C, reaction pressure 3.4
± 0.1MPa, endless tube density 595kg/m3。
(4) polymeric reaction product obtained by step (3) enters gas phase reaction kettle, control after flashing de- liquid propylene
80 ± 5 DEG C of the temperature of gas phase kettle, material position 75%, gas is compared to 45, final ethylene contents 11%, and obtained melt flow rate (MFR) is
4.5g/10min polypropylene powder.
Step 2: by polypropylene powder and lubricant, antioxidant 1010, auxiliary antioxidant 168, halogen-absorber, nucleation
Agent, peroxide are mixed to get mixed material.
Step 3: mixed material obtained is added in extruder, and load is 10 ton/hours, and screw speed is 183 revs/min
Clock, each section of barrel temperature of extruder are 200 DEG C, and cooling water temperature is 60 DEG C.
It is 11.8% that ethylene contents, which are made, and melt flow rate (MFR) is the high fluidity punching proof acrylic material of 38.5g/10min
Material.
The mechanical property of products obtained therefrom is shown in invention effect subordinate list 1.
Table 1:
Upper table is the results show that embodiment one, two and three directly by using efficient nucleation agent, cooperates lubricant, anti-oxidant
Agent, halogen-absorber are mixed with polypropylene powder, under the action of peroxide, squeeze out to obtain high fluidity, height through extruder
Impact polypropylene.The material may not need modification and be directly used in the large thin-walled products such as automobile, household article, packaging, to subtract
Few intermediate link, reduces production cost.
The above embodiment of the present invention can only all be considered the description of the invention rather than limit, it is all according to the present invention
Substantial technological any subtle modifications, equivalent variations and modifications to the above embodiments, belong to technical solution of the present invention
In the range of.
Claims (10)
1. a kind of high fluidity punching proof acrylic material, characterized in that ethylene contents 8~14%, rubber content 14~17% melt
Body 30~40g/10min of flow rate, by polypropylene powder, lubricant, primary antioxidant, auxiliary antioxidant, halogen-absorber, at
Core agent and peroxide are prepared for primary raw material, wherein the ethylene contents 8~14% of the polypropylene powder, rubber contains
Amount 14~17%, 3~6g/10min of melt flow rate (MFR).
2. high fluidity punching proof acrylic material according to claim 1, characterized in that the mass parts of each raw material are such as
Under:
90.5~99.8 parts of polypropylene powder, 0.05~0.15 part of lubricant
0.05~0.15 part of primary antioxidant, 0.05~0.15 part of auxiliary antioxidant
0.05~0.15 portion of halogen-absorber, 0.05~0.25 part of nucleating agent
0.05~0.15 part of peroxide.
3. high fluidity punching proof acrylic material according to claim 1 or 2, characterized in that the polypropylene powder
It is prepared by hydrogen-regulating method, preparation step is as follows:
(1) propylene gathers propylene through pre-polymerization reactor under the collective effect of major catalyst, co-catalyst and external electron donor
Symphysis is at polypropylene；
(2) polypropylene obtained by step (1) enters the first annular-pipe reactor with fresh propylene and hydrogen and continues to polymerize instead
It answers,；
(3) polymeric reaction product obtained by step (2) enters the second annular-pipe reactor with fresh propylene and hydrogen and continues
Polymerization；
(4) polymeric reaction product obtained by step (3) enters gas phase reaction kettle after flashing de- liquid propylene and is reacted,
Ethylene contents 8~14% are obtained, it is 3~6g/10min polypropylene powder that melt flow rate (MFR), which is made,.
4. high fluidity punching proof acrylic material according to claim 3, characterized in that resist described in the step (1)
The ratio 0.4~0.6 of electrostatic agent and co-catalyst.
5. high fluidity punching proof acrylic material according to claim 3, characterized in that described in the step (2)
The density of hydrogen of one endless tube is 1500 ± 200ppm, and endless tube density is 540~560kg/m3。
6. high fluidity punching proof acrylic material according to claim 3, characterized in that described in the step (3)
The density of hydrogen of two endless tubes is 1500 ± 200ppm, 580~600kg/m of endless tube density3。
7. high fluidity punching proof acrylic material according to claim 5 or 6, characterized in that the step (2) and (3)
Reaction temperature and pressure it is all the same, specially reaction temperature be 70 ± 1 DEG C, reaction pressure be 3.4 ± 0.1MPa.
8. high fluidity punching proof acrylic material according to claim 8, characterized in that the step (4) controls gas phase
80 ± 5 DEG C of the temperature of reaction kettle, material position 70~80%, gas compare 0.43~0.45.
9. high fluidity punching proof acrylic material according to claim 3, characterized in that the nucleating agent is carboxylate
Class nucleating agent.
10. high fluidity punching proof acrylic material according to claim 9, characterized in that the lubricant is single hard
Resin acid glycerolipid；The halogen-absorber is calcium stearate；The primary antioxidant is 3- (3,5 pairs of tertiary butyl -4- hydroxyls
Cyclohexyl) propionic ester；The auxiliary antioxidant is three (2,4- di-tert-butyl-phenyl) phosphite esters；The peroxide is
Dual-tert-butyl cumyl peroxide.
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Application publication date: 20181207 |