CN105566746A - Polypropylene composition and polypropylene material, as well as application thereof - Google Patents
Polypropylene composition and polypropylene material, as well as application thereof Download PDFInfo
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Abstract
The invention discloses a polypropylene composition and a polypropylene material, as well as application thereof. The polypropylene composition comprises polypropylene, a nucleating agent and an antioxidant, wherein the polypropylene is a noblen or a random copolymer of propylene and a monomer B, and the monomer B is made of ethylene and/or butane; the total weight of the polypropylene is taken as a criterion, the content of the constitutional unit of the monomer B accounts for 0 to 1 percent by weight, and the content of the constitutional unit of the propylene accounts for 99 to 100 percent by weight; at the temperature of 230 DEG C and under the effect of 2.16 kg load, the melt mass-flow rate of the polypropylene is 0.2 to 0.8 g/10 min; the nucleating agent is a Beta crystal form nucleating agent. The polypropylene material prepared by the polypropylene composition can well have relatively low tensile yield stress, appropriate tensile yield strain, relatively high tensile breaking stress, relatively high tensile stain at break and relatively good heat aging resistant property at the same time.
Description
Technical field
The present invention relates to a kind of polypropene composition, the polypropylene material prepared by this polypropene composition and described polypropene composition and/or the application of described polypropylene material in preparation stretching geo-grid.
Background technology
Geo-grid is a kind of plastic grill of fenestral fabric with square opening, parallel ribs.The production of grid is by sheet material punching or the sheet material that squeezes out with shrink mark, mesh-structured then by unidirectional or two-way stretch.This polymkeric substance grid product can be used for the maintenance of earth, sand, gravel etc. and stablizes, application in trackside, roadbed, road or runway surface are fixing.
Stretching geo-grid is with polypropylene or polyethylene for raw material, forms through plasticizing extrusion board, punching, heating, longitudinal stretching, cross directional stretch.Geo-grid can adopt well-known technology to produce, such as, describe the technique of first punching back draft in patent US4374798, US5419659, US4590029, US474348 and US4756946, in US3252181, US3317951, US3496965, US4470942, US4808358 and US5053264, describe the technique of the sheet material back draft first extruded with shrink mark hole.
US2005/0288404A1 discloses a kind of polymkeric substance geo-grid and preparation method thereof.This polymkeric substance contains polypropylene and beta crystal-type nucleater.Although the polypropylene grid formed by beta crystal-type nucleater shows the tear strength of increase, and Young's modulus have also been obtained raising, but still be difficult to obtain the polypropylene grid having excellent mechanical performances and good heatproof air aging performance concurrently.
CN102093637A discloses a kind of preparation method of beta nucleating agent modified polypropylene geogrid.The method comprises is undertaken blended by beta crystal-type nucleater, look mother, synthesis oxidation inhibitor and polypropylene, obtain blend, again blend is melt extruded through being heated to 180-230 DEG C by screw extrusion press, melt is by three-roller calendar sheet forming, sheet material uses scale residence to carry out punching through stamping machine, and orifice plate obtains after being warming up to 80-100 DEG C and stretching.But polyacrylic structure is not further qualified in the method, and the method is difficult to obtain the stretching geo-grid with good mechanical property and good heatproof air aging performance.
CN103724811A discloses a kind of high-performance modified polypropylene and for two-way stretch geo-grid PP Pipe Compound working method.The method to be extruded at twin screw extruder according to certain proportioning by adding polypropylene, synthesis oxidation inhibitor, aryl amides nucleator (self-control nucleator) and to obtain sheet material by three-roller calendar, then obtains geo-grid PP Pipe Compound through punching with after stretching.The method is also difficult to the stretching geo-grid obtained with good mechanical property and good heatproof air aging performance.
In the preparation process of existing stretching geo-grid, although its transparency or mechanical property can be improved by adding nucleator toward polypropylene or base polyethylene in, be still difficult to obtain the stretching geo-grid with lower stretching yield stress, higher tensile break stress, the strain of higher break-draw and good heatproof air aging performance.
Summary of the invention
The object of this invention is to provide a kind of new polypropene composition, the polypropylene material prepared by this polypropene composition and described polypropene composition and/or the application of polypropylene material in preparation stretching geo-grid.
The invention provides a kind of polypropene composition, this polypropene composition contains polypropylene, nucleator and oxidation inhibitor, wherein, described polypropylene is the random copolymers of alfon or propylene and monomers B, described monomers B is ethene and/or butylene, with described polyacrylic gross weight for benchmark, the content of the structural unit of described monomers B is 0-1 % by weight, and the content of propylene structural unit is 99-100 % by weight; The melt mass flow rate of described polypropylene at 230 DEG C, under the effect of 2.16kg load is 0.2-0.8g/10min; Described nucleator is beta crystal-type nucleater.
Present invention also offers a kind of polypropylene material, this polypropylene material melt extrudes shaping obtaining by described polypropene composition.
In addition, present invention also offers the application of described polypropene composition in preparation stretching geo-grid.
The present inventor is found by research, the content of polyacrylic melt mass flow rate and comonomer structural unit is controlled in certain scope, can make strained by the polypropylene material prepared containing this polyacrylic polypropene composition with lower stretching yield stress, suitable tensile strain at yield, higher tensile break stress, higher break-draw and there is good heatproof air aging performance, and this polypropylene material has good stretch process performance.
Particularly, the stretching yield stress of this polypropylene material is 29-31MPa, and stretching yield strain is 8-10%, and tensile break stress is at more than 35MPa, and break-draw strain reaches more than 600%, and oxidation induction time (210 DEG C, Al) is at more than 5min.
In addition, the sheet material prepared by this polypropylene material easily can carry out punching and stretched operation, and the sheet material stretching that this polypropylene material extrudes punching simultaneously becomes rib to make to have thinning effect, and material has good tensile strength simultaneously.
Other features and advantages of the present invention are described in detail in embodiment part subsequently.
Embodiment
Below the specific embodiment of the present invention is described in detail.Should be understood that, embodiment described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
The invention provides a kind of polypropene composition, this polypropene composition contains polypropylene, nucleator and oxidation inhibitor, wherein, described polypropylene is the random copolymers of alfon or propylene and monomers B, described monomers B is ethene and/or butylene, with described polyacrylic gross weight for benchmark, the content of the structural unit of described monomers B is 0-1 % by weight, and the content of propylene structural unit is 99-100 % by weight; The melt mass flow rate of described polypropylene at 230 DEG C, under the effect of 2.16kg load is 0.2-0.8g/10min; Described nucleator is beta crystal-type nucleater.
In the present invention, described polypropylene is the random copolymers of alfon or propylene and monomers B.Alfon refers to the polymkeric substance formed by single propylene monomer.
In polypropylene of the present invention, the content of the structural unit of comonomer B has larger impact to the performance containing this polyacrylic polypropene composition, with described polyacrylic gross weight for benchmark, when described monomers B structural unit content higher than 1 % by weight time, namely propylene structural unit content lower than 99 % by weight time, the mechanical property of polypropene composition and stretch process degradation.
Under preferable case, with described polyacrylic gross weight for benchmark, the content of the structural unit of described monomers B is 0.2-0.7 % by weight, the content of propylene structural unit is 99.3-99.8 % by weight, under further preferable case, with described polyacrylic gross weight for benchmark, the content of described monomers B structural unit is 0.3-0.5 % by weight, and the content of propylene structural unit is 99.5-99.7 % by weight.
Polyacrylic melt mass flow rate of the present invention has larger impact to the performance containing this polyacrylic polypropene composition, when the melt mass flow rate of described polypropylene at 230 DEG C, under the effect of 2.16kg load is lower than 0.2g/10min or higher than 0.8g/10min, the mechanical property of polypropene composition and stretch process degradation.
Under preferable case, the melt mass flow rate of described polypropylene at 230 DEG C, under the effect of 2.16kg load is 0.3-0.7g/10min, under further preferable case, the melt mass flow rate of described polypropylene at 230 DEG C, under the effect of 2.16kg load is 0.45-0.55g/10min.
In the present invention, described melt mass flow rate measures according to the method specified in ISO1133-2005, and wherein, probe temperature is 230 DEG C, and load is 2.16kg.
In polypropylene, the content of the structural unit of propylene structural unit and monomers B adopts infrared spectroscopy to record.
The content of the present invention to described polypropylene, nucleator and oxidation inhibitor is not particularly limited, such as, with the described polypropylene of 100 weight parts for benchmark, the content of described nucleator can be 0.01-0.2 weight part, and the content of described oxidation inhibitor can be 0.1-1 weight part; Preferably, with the described polypropylene of 100 weight parts for benchmark, the content of described nucleator is 0.02-0.15 weight part, and the content of described oxidation inhibitor is 0.2-0.8 weight part; Further preferably, with the described polypropylene of 100 weight parts for benchmark, the content of described nucleator is 0.05-0.10 weight part, and the content of described oxidation inhibitor is 0.5-0.8 weight part.
According to the present invention, described nucleator can adopt various beta crystal-type nucleaters conventional in this area, as long as polypropylene can be induced to carry out crystallization.Usually, described beta crystal-type nucleater is one or more in the mixture of di-carboxylic acid and the IIth A race metal-salt, rare earth class beta crystal-type nucleater, aromatic amides class nucleator and cyclic dicarboxylic acid salt nucleator.Under preferable case, described beta crystal-type nucleater is one or more in the mixture of rare earth class beta crystal-type nucleater, aromatic amides class nucleator and di-carboxylic acid and the IIth A race metal-salt.
According to the present invention, the main component of described rare earth class beta crystal-type nucleater is rare-earth oxide, and the specific examples of described rare-earth oxide can include but not limited to: one or more in Scium trioxide, lanthanum trioxide, cerium oxide, yttrium oxide and Praseodymium trioxide etc.Described rare earth class beta crystal-type nucleater can pass through commercially available, such as, and can for the rare earth class beta crystal-type nucleater purchased from the trade mark of Guangdong Wei Linna functional materials company being WBG.
According to the present invention, described aromatic amides class nucleator can be substituted benzene amides nucleator.Particularly; the example of described aromatic amides class nucleator can include but not limited to: N; N-dicyclohexyl phthalic diamide, N; N-dicyclohexyl terephthalamide, N; N-hexichol amido adipamide, N, N-dibenzoyl hexanediamine, N, N-dibenzoyl Ursol D, N; one or more in N-phenylbenzene succinic diamide and N, N-phenylbenzene adipamide.Described aromatic amides class nucleator can by commercially available, and such as, the trade mark that described substituted aromatic amide class nucleator such as can be produced for Shanxi chemical institute is the substituted benzene amides nucleator of TMB-4 and TMB-5.
In the mixture nucleator of described di-carboxylic acid and the IIth A race metal-salt, the specific examples of described di-carboxylic acid can include but not limited to: one or more in propanedioic acid, pentanedioic acid, nonane diacid and suberic acid.Described IIth A race metallic salts is as comprised the salt compounds of the metals such as magnesium, calcium, strontium, barium.Particularly, the example of described IIth A race metal-salt can include but not limited to: one or more in calcium carbonate, calcium stearate, Magnesium Stearate and barium stearate.In addition, the weight ratio of described di-carboxylic acid and the IIth A race metal-salt can be 0.01-1:1, is preferably 0.5-1:1.The mixture nucleator of described di-carboxylic acid and the IIth A race metal-salt can by commercially available, such as, can be NAB-81 or the NAB-83 nucleator with scientific & technical corporation for Guangzhou.
Described cyclic dicarboxylic acid salt nucleator can be ring-type ortho position di-carboxylic acid II B-group metal salt, described ring-type ortho-dicarboxylic acids is substituted or non-substituted carbonatoms is the monocycle of C5-C8 or the di-carboxylic acid of multi-ring alkyl, cycloalkyl or heterocyclic radical, the specific examples of described cyclic dicarboxylic acid salt nucleator can with reference to " polypropylene nucleater " (Zhang Yuefei, Dai Yimin. polypropylene nucleater. Beijing: Chemical Industry Press, 2013,8:145) the middle cyclic dicarboxylic acid salt nucleator described.
According to the present invention, described oxidation inhibitor can be various oxidation inhibitor conventional in this area, as long as play long-acting stable and oxidation resistant effect.Described oxidation inhibitor contains primary antioxidant and aid anti-oxidants, described primary antioxidant is hindered phenol type antioxidant and/or the amine type oxidation inhibitor that is obstructed, described aid anti-oxidants is phosphite type oxidation inhibitor and/or sulfo-ester type oxidation inhibitor, under preferable case, described in help antioxidant to be phosphite type oxidation inhibitor and sulfo-ester type oxidation inhibitor.
In order to make primary antioxidant and aid anti-oxidants play synergy better, the weight ratio of described primary antioxidant and aid anti-oxidants can be 0.2-2:1, is preferably 0.5-1.5:1.When aid anti-oxidants be phosphite type oxidation inhibitor and sulfo-ester type oxidation inhibitor time, the weight ratio of the consumption of described phosphite type oxidation inhibitor and sulfo-ester type oxidation inhibitor is 1:0.1-5, be preferably 1:0.5-2.
The kind of the present invention to described hindered phenol type antioxidant is not particularly limited, such as, four [β-(3 can be selected from, 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester (being called for short: antioxidant 1010), 1, 3, 5-trimethylammonium-2, 4, 6-(3, 5-di-t-butyl-4-hydroxyphenylmethyl) benzene (being called for short: antioxidant 330), 1, 3, 5-tri-(3, 5-di-tert-butyl-4-hydroxyl benzyl) tricarbimide (be called for short: antioxidant 3114) and β-(3, 5-di-tert-butyl-hydroxy phenyl) one or more in the positive octadecanol ester of propionic acid (be called for short: antioxidant 1076), be particularly preferably [β-(3, 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester and/or 1, 3, 5-trimethylammonium-2, 4, 6-(3, 5-di-t-butyl-4-hydroxyphenylmethyl) benzene.
The kind of the present invention to the amine type oxidation inhibitor that is obstructed is not particularly limited, such as can be selected from two (2, 2, 6, 6-tetramethyl--4-piperidyl) sebate (being called for short photostabilizer 770), poly-[[6-[(1, 1, 3, 3-tetramethyl butyl) amine]-1, 3, 5-triazine-2, 4-bis-base] [(2, 2, 6, 6-tetramethyl--4-piperidines) imines]-1, 6-bis-dihexyl [(2, 2, 6, 6-tetramethyl--4-piperidines) imines]]] (being called for short photostabilizer 944) and three (1, 2, 2, 6, 6-pentamethvl base) one or more in phosphorous acid ester (be called for short photostabilizer GW-540).
The specific examples of described phosphite type oxidation inhibitor includes but not limited to: three (2,4-di-tert-butyl-phenyl) phosphorous acid esters and/or tetramethylolmethane diphosphite two (2,4-di-tert-butyl phenyl) ester.
The specific examples of described sulfo-ester type oxidation inhibitor includes but not limited to: the two octadecyl ester of thio-2 acid and/or Tyox B.
According to the present invention, in order to make described polypropene composition have over-all properties, described polypropene composition can also contain other auxiliary agents, and described auxiliary agent can be Masterbatch and/or carbon black.
To the content of other auxiliary agents, there is no particular limitation in the present invention, and usually, with the described polypropylene of 100 weight parts for benchmark, the content of described auxiliary agent is 0.1-1 weight part, is preferably 0.1-0.5 weight part.
Present invention also offers a kind of polypropylene material, this polypropylene material melt extrudes shaping obtaining by above-mentioned polypropene composition.
According to the present invention, described polypropene composition is melt extruded the kind of shaping method, condition and forcing machine used also for conventionally known to one of skill in the art.Such as, twin screw extruder can be adopted, also single screw extrusion machine can be adopted to melt extrude polypropene composition shaping, and the polypropylene material of different shapes (as particulate state, film like etc.) can be obtained according to the shape of extruder die head, all can know these those skilled in the art, will repeat no more at this.In addition, described melt extrude shaping condition generally include screw speed can for 150-360 rev/min, each zone temperatures can be respectively 170-210 DEG C, 175-240 DEG C, 180-250 DEG C, 180-250 DEG C, 180-250 DEG C, 175-240 DEG C, the vacuum tightness of each section can be 0.02MPa-0.09MPa.In the present invention, described vacuum tightness refers to the absolute value of the difference of absolute pressure and barometric point.
In the preparation process of described polypropylene material, in order to obtain more uniform polypropylene material, described melt extrude shaping before, also preferably include the step mixed by described polypropene composition.The method mix described polypropene composition and condition are known to the skilled person, such as, described polypropene composition can be joined in existing various mixing equipment and be uniformly mixed, wherein, described mixing equipment can be such as stirrer, kneader, mill and Banbury mixer etc.The temperature and time be uniformly mixed is conventionally known to one of skill in the art, and such as, the temperature be uniformly mixed can be 25-65 DEG C, and the time be uniformly mixed can be 1-30 minute.
In addition, present invention also offers described polypropene composition and/or the application of polypropylene material in preparation stretching geo-grid, the application especially in preparation two-way stretch geo-grid.
Improvements of the present invention are to have employed a kind of new polypropene composition and polypropylene material, and the preparation method of two-way stretch geo-grid can with reference to prior art.
Such as polypropene composition provided by the invention is melt extruded, then by the melt that obtains by the shaping acquisition sheet material of three-roller calendar, the sheet material obtained is carried out punching through die for punching machine, and orifice plate is obtained after being warming up to 80-100 DEG C and stretching again.
Below will be described the present invention by embodiment.
In following examples, the mensuration of the content of ethylene unit unit: adopt infrared spectroscopy, sample pellet is hot pressed into the film that thickness is 200-400 micron on the thermocompressor of 160 DEG C, after naturally cooling to room temperature, test in the IR-435 Fourier transform infrared spectrometer of Japanese Shimadzu being purchased.
Embodiment 1
This embodiment is for illustration of polypropene composition provided by the invention and polypropylene material and preparation method thereof.
(1) component:
(purchased from Beijing Yanshan Petrochemical Company of China Petrochemical Industry, the melt mass flow rate MFR at 230 DEG C, under the effect of 2.16kg load is 0.49g/10min to acrylic resin P1; With acrylic resin gross weight for benchmark, ethylene unit unit content is 0.4 % by weight, and the content of propylene structural unit is 99.6 % by weight), 100 weight parts;
Beta crystal-type nucleater is substituted benzene acid amides (Shanxi chemical institute, TMB-4), 0.1 weight part;
[β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, 0.3 weight part;
Three (2,4-di-tert-butyl-phenyl) phosphorous acid ester, 0.1 weight part;
Tyox B, 0.1 weight part;
(be purchased Cabot company, the trade mark is carbon black
120), 0.1 weight part;
(2) preparation method of polypropylene material:
Acrylic resin, beta crystal-type nucleater, oxidation inhibitor and auxiliary agent to be added in stirrer and to stir at 25 DEG C after 1 minute, the mixture obtained is sent in twin screw extruder, the rotating speed of adjustment screw rod is 360 revs/min, and each zone temperatures controls respectively: 200 DEG C, 200 DEG C, 215 DEG C, 215 DEG C, 215 DEG C and 210 DEG C; The vacuum tightness of each section remains 0.02MPa to 0.09MPa; Mixture, in the screw rod and cylindrical shell of above-mentioned forcing machine, through melting, shearing, dispersion, compression, exhaust, plastifies, extrudes, then extrudes through die head, after pelletizing, obtains polypropylene material C1.
Embodiment 2
This embodiment is for illustration of polypropene composition provided by the invention and polypropylene material and preparation method thereof.
(1) component:
(purchased from Beijing Yanshan Petrochemical Company of China Petrochemical Industry, the melt mass flow rate MFR at 230 DEG C, under the effect of 2.16kg load is 0.55g/10min to acrylic resin P2; With acrylic resin gross weight for benchmark, ethylene unit unit content is 0.5 % by weight, and the content of propylene structural unit is 99.5 % by weight), 100 weight parts;
Beta crystal-type nucleater is substituted benzene acid amides (Shanxi chemical institute, TMB-5), 0.05 weight part;
[β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, 0.3 weight part;
Three (2,4-di-tert-butyl-phenyl) phosphorous acid ester, 0.3 weight part;
Tyox B, 0.2 weight part;
Masterbatch (be purchased Cabot company, the trade mark is PP4766), 0.5 weight part;
(2) preparation method of polypropylene material:
Identical with embodiment 1, obtain polypropylene material C2.
Embodiment 3
This embodiment is for illustration of polypropene composition provided by the invention and polypropylene material and preparation method thereof.
(1) component:
(purchased from Beijing Yanshan Petrochemical Company of China Petrochemical Industry, the melt mass flow rate MFR at 230 DEG C, under the effect of 2.16kg load is 0.45g/10min to acrylic resin P3; With acrylic resin gross weight for benchmark, ethylene unit unit content is 0.3 % by weight, and the content of propylene structural unit is 99.7 % by weight), 100 weight parts;
Beta crystal-type nucleater is rare earth class beta crystal-type nucleater WBG (Guangdong Wei Linna functional materials company), 0.08 weight part;
[β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, 0.3 weight part;
Three (2,4-di-tert-butyl-phenyl) phosphorous acid ester, 0.1 weight part;
Two (2,2,6,6-tetramethyl--4-piperidyl) sebate, 0.2 weight part;
(2) preparation method of polypropylene material:
Identical with embodiment 1, obtain polypropylene material C3.
Embodiment 4
The present embodiment illustrates polypropene composition provided by the invention and polypropylene material and preparation method thereof.
Prepare polypropene composition and polypropylene material according to the method for embodiment 2, difference is, replaces beta crystal-type nucleater, obtain polypropylene material C4 with the nucleant agent N AB-81 (being and scientific & technical corporation purchased from Guangzhou) of identical weight part.
Embodiment 5
Method according to embodiment 1 prepares polypropylene material, difference is, adopt acrylic resin (chemical industry two factory of the China Petrochemical Industry Beijing Yanshan Mountain branch office production of identical weight part, alfon, melt mass flow rate MFR at 230 DEG C, under the effect of 2.16kg load is 0.54g/10min) replace acrylic resin P1, obtain polypropylene material C5.
Comparative example 1
This comparative example is for illustration of reference polypropylene material and preparation method thereof.
Method according to embodiment 1 prepares polypropylene material, difference is, adopt acrylic resin (chemical industry two factory of the China Petrochemical Industry Beijing Yanshan Mountain branch office production of identical weight part, alfon, melt mass flow rate MFR at 230 DEG C, under the effect of 2.16kg load is 1g/10min) replace acrylic resin P1, obtain reference polypropylene material DC1.
Comparative example 2
This comparative example is for illustration of reference polypropylene material and preparation method thereof.
Method according to comparative example 1 prepares polypropylene material, and difference is, does not add beta crystal-type nucleater.Obtain reference polypropylene material DC2.
Comparative example 3
This comparative example is for illustration of reference polypropylene material and preparation method thereof.
Method according to embodiment 1 prepares polypropylene material, and difference is, does not add beta crystal-type nucleater.Obtain reference polypropylene material DC3.
Comparative example 4
Method according to embodiment 1 prepares polypropylene material, difference is, (chemical industry two factory of China Petrochemical Industry Beijing Yanshan Mountain branch office produces the acrylic resin of employing identical weight part, and the melt mass flow rate MFR at 230 DEG C, under the effect of 2.16kg load is 1.2g/10min; With acrylic resin gross weight for benchmark, the content of ethylene unit unit is 0.6 % by weight, and the content of propylene structural unit is 99.4 % by weight) replace acrylic resin P1, obtain reference polypropylene material DC4.
Test case
Test case is for illustration of the test of polypropylene material performance provided by the invention.
(1) mechanical property:
Measure the stretching yield strain of polypropylene material C1-C5 and reference polypropylene material DC1-DC4, stretching yield stress, tensile break stress, break-draw strain respectively according to the method specified in GB/T1040.2, result is as shown in table 1;
(2) oxidation induction time
The oxidation induction time of polypropylene material C1-C5 and reference polypropylene material DC1-DC4 is measured respectively according to the method specified in ISO11357-6.Test condition is 210 DEG C, and A1 represents that probe temperature is 210 DEG C, and tester is aluminium crucible.
Table 1
Find out from the data of table 1, the polypropylene material prepared by polypropene composition provided by the invention can have lower stretching yield stress, suitable tensile strain at yield, higher tensile break stress, the strain of higher break-draw and good heatproof air aging performance well concurrently, and this polypropene composition has good stretch process performance.
More than describe the preferred embodiment of the present invention in detail; but the present invention is not limited to the detail in above-mentioned embodiment, within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition, each the concrete technical characteristic described in above-mentioned embodiment, in reconcilable situation, can be combined by any suitable mode.In order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible array mode.
In addition, also can carry out arbitrary combination between various different embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (9)
1. a polypropene composition, this polypropene composition contains polypropylene, nucleator and oxidation inhibitor, it is characterized in that, described polypropylene is the random copolymers of alfon or propylene and monomers B, described monomers B is ethene and/or butylene, with described polyacrylic gross weight for benchmark, the content of the structural unit of described monomers B is 0-1 % by weight, and the content of propylene structural unit is 99-100 % by weight; The melt mass flow rate of described polypropylene at 230 DEG C, under the effect of 2.16kg load is 0.2-0.8g/10min; Described nucleator is beta crystal-type nucleater.
2. polypropene composition according to claim 1, wherein, with described polyacrylic gross weight for benchmark, the content of the structural unit of described monomers B is 0.2-0.7 % by weight, and the content of propylene structural unit is 99.3-99.8 % by weight; The melt mass flow rate of described polypropylene at 230 DEG C, under the effect of 2.16kg load is 0.3-0.7g/10min.
3. polypropene composition according to claim 1, wherein, with the described polypropylene of 100 weight parts for benchmark, the content of described nucleator is 0.01-0.2 weight part, and the content of described oxidation inhibitor is 0.1-1 weight part.
4. the polypropene composition according to claim 1 or 3, wherein, described beta crystal-type nucleater is one or more in the mixture of di-carboxylic acid and the IIth A race metal-salt, rare earth class beta crystal-type nucleater, aromatic amides class nucleator and cyclic dicarboxylic acid salt nucleator.
5. polypropene composition according to claim 4, wherein, described rare earth class beta crystal-type nucleater is rare-earth oxide; Described aromatic amides class nucleator is substituted benzene amides nucleator; Described di-carboxylic acid is one or more in propanedioic acid, pentanedioic acid, nonane diacid and suberic acid, described IIth A race metal-salt is one or more in calcium carbonate, calcium stearate, Magnesium Stearate and barium stearate, and the weight ratio of described di-carboxylic acid and described IIth A race metal-salt is 0.01-1:1; Described cyclic dicarboxylic acid salt nucleator is ring-type ortho position di-carboxylic acid II B-group metal salt.
6. the polypropene composition according to claim 1 or 3, wherein, described oxidation inhibitor contains primary antioxidant and aid anti-oxidants, and described primary antioxidant is hindered phenol type antioxidant and/or the amine type oxidation inhibitor that is obstructed, and described aid anti-oxidants is phosphite type oxidation inhibitor and/or sulfo-ester type oxidation inhibitor; The weight ratio of described primary antioxidant and aid anti-oxidants is 0.2-2:1.
7. polypropene composition according to claim 1, wherein, described polypropene composition is also containing auxiliary agent, and described auxiliary agent is Masterbatch and/or carbon black; With the described polypropylene of 100 weight parts for benchmark, the content of described auxiliary agent is 0.1-1 weight part.
8. a polypropylene material, this polypropylene material melt extrudes shaping obtaining by the polypropene composition in claim 1-7 described in any one.
9. the polypropene composition in claim 1-7 described in any one and/or the application of polypropylene material according to claim 8 in preparation stretching geo-grid.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108424545A (en) * | 2018-04-27 | 2018-08-21 | 长沙理工大学 | A kind of composite nucleating agent and its polypropene composition replacing hydrazides based on phenyl |
| CN112126165A (en) * | 2020-09-27 | 2020-12-25 | 上海金发科技发展有限公司 | Polypropylene composite material with self-repairing performance after high-temperature aging and preparation method thereof |
| CN115466456A (en) * | 2021-06-11 | 2022-12-13 | 中国石油化工股份有限公司 | Polypropylene composition, polypropylene material, polypropylene cast film and preparation method and application thereof |
| CN116769252A (en) * | 2023-08-24 | 2023-09-19 | 山东路德新材料股份有限公司 | Geogrid polypropylene engineering plastic and preparation method and application thereof |
| CN117024878A (en) * | 2023-08-24 | 2023-11-10 | 山东路德新材料股份有限公司 | Modified polypropylene geogrid raw material and geogrid |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102093637A (en) * | 2011-01-20 | 2011-06-15 | 南昌天高新材料股份有限公司 | Method for preparing beta nucleating agent modified polypropylene geogrid |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102093637A (en) * | 2011-01-20 | 2011-06-15 | 南昌天高新材料股份有限公司 | Method for preparing beta nucleating agent modified polypropylene geogrid |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108424545A (en) * | 2018-04-27 | 2018-08-21 | 长沙理工大学 | A kind of composite nucleating agent and its polypropene composition replacing hydrazides based on phenyl |
| CN112126165A (en) * | 2020-09-27 | 2020-12-25 | 上海金发科技发展有限公司 | Polypropylene composite material with self-repairing performance after high-temperature aging and preparation method thereof |
| CN115466456A (en) * | 2021-06-11 | 2022-12-13 | 中国石油化工股份有限公司 | Polypropylene composition, polypropylene material, polypropylene cast film and preparation method and application thereof |
| CN116769252A (en) * | 2023-08-24 | 2023-09-19 | 山东路德新材料股份有限公司 | Geogrid polypropylene engineering plastic and preparation method and application thereof |
| CN117024878A (en) * | 2023-08-24 | 2023-11-10 | 山东路德新材料股份有限公司 | Modified polypropylene geogrid raw material and geogrid |
| CN116769252B (en) * | 2023-08-24 | 2023-12-12 | 山东路德新材料股份有限公司 | Geogrid polypropylene engineering plastic and preparation method and application thereof |
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| CN105566746B (en) | 2018-07-06 |
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