CN1068580A - Polypropylene resin composite and manufacture method thereof - Google Patents
Polypropylene resin composite and manufacture method thereof Download PDFInfo
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- CN1068580A CN1068580A CN 91104650 CN91104650A CN1068580A CN 1068580 A CN1068580 A CN 1068580A CN 91104650 CN91104650 CN 91104650 CN 91104650 A CN91104650 A CN 91104650A CN 1068580 A CN1068580 A CN 1068580A
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F6/04—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins
- D01F6/06—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins from polypropylene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
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- 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
- C08L23/26—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment
- C08L2023/40—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment by reaction with compounds changing molecular weight
- C08L2023/42—Depolymerisation, vis-breaking or degradation
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- C08L2203/00—Applications
- C08L2203/12—Applications used for fibers
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- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2314/00—Polymer mixtures characterised by way of preparation
- C08L2314/02—Ziegler natta catalyst
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Abstract
The invention relates to polypropylene resin composite and manufacturing technology thereof, be used for improving polyacrylic processing characteristics and quality of item.This resin combination is to be mixed in the proper ratio with the chemical degradation polypropylene by polymer grade polypropylene, adds right amount of processing aids (as stablizer, FLOW IMPROVERS, static inhibitor, tinting material etc.) and makes.Be mixed with a series of melt flow indexes (MI) for 4-15 according to its purposes, 15-30,30-50,50-100 gram/10 minutes (230 ℃, the different resin combination of specification such as 2.16kg).
Description
The invention belongs to polyolefin compositions and manufacture field thereof.
The invention relates to polypropylene resin composite and manufacture method thereof.This novel polypropylene resin composite is that multiple acrylic resin and the processing aid by different size and performance combines, and serves many purposes and good processing characteristics.
Polypropylene is a kind of broad-spectrum polymer, and it can be used for making fiber, film and various plastics.Different polypropylene articles has the specification of quality that has nothing in common with each other for acrylic resin, thereby, must there be the many kinds of different resins of specification to be adapted to the different needs of the various courses of processing.But the resin that for example is used to make polypropylene fibre needs higher fluidity of molten and good drawdown; The acrylic resin that is used to make other goods such as film or plastics then all can have requirement very inequality to the intensity of the flowability of its melt and goods, modulus, toughness etc.In other words, in order to be adapted to the needs of variant production manufacturing process, difference is very big sometimes for the requirement of molecular weight, molecular weight distribution, degree of isotacticity or the like and the requirement of various performance index for the acrylic resin of the different trades mark.And the polypropylene made from various ordinary methods, the regulation range that relies on the fabrication process parameters of regulating production equipment to change these performance index of product all has only certain limit.For example, make isotatic polypropylene (to call conventional catalyzed polymerization grade polypropylene in the following text) with conventional Ziegler-natta catalyst, methods such as available adjustment density of hydrogen are controlled the molecular weight and the fluidity of molten of product.The polyacrylic molecular weight distribution that makes in this way is all quite wide, molecular weight distributing index (Q) gets high post etc. for Zhao 3.0-4.0[, the polymer communication, (3), 234(1983)], melt flow index (MI) (is pressed ASTM D-1238 method and is measured 230 ℃, 2.16kg) all very little (MI＜20 gram/10 minutes), and be difficult to make the product of the little and narrowly distributing of molecular weight.Replace conventional polypropylene catalyst with the effective catalyst of succeeding in developing in recent years and can be made into the narrower acrylic resin of molecular weight distribution (Q=1.3-1.7), but still be difficult to the polypropylene (MI＞20) of production high workability.With a small amount of chemical degradation promotor (various organo-peroxides commonly used are polyacrylic degradation of promoter) above-mentioned two big class polypropylene are carried out control degradation, can make the resin that fluidity of molten is very high, molecular weight is less, molecular weight distribution is narrower (to call the chemical degradation polypropylene in the following text) (Q=1.2-1.7, MI＞20) to polypropylene.But above-mentioned various polypropylene industrial manufacture method commonly used often is difficult to independently molecular weight and molecular weight distribution be regulated significantly.All can not make the quite wide and quite high new trade mark acrylic resin of fluidity of molten of molecular weight distribution as above-mentioned several method.
About various processing and manufacturing process need on earth acrylic resin have which type of molecular weight and molecular weight distribution be for many years always in discussion and so far still solve quite not enough problem.A lot of people think, the polypropylene that is used to make fiber not only requires fluidity of molten and lower molecular weight preferably, but also requires to have narrow molecular weight distribution.General both at home and abroad all the striving direction of the resin (* w/*n＜4) of making narrow molecular weight distribution as exploitation high speed spinning or fine count fiber PP Pipe Compound.The many fiber-grade pp resin product innovations that occur in recent years in the international market also all are that molecular weight distribution is rather narrow really.
The polypropylene of different molecular weight mixed regulate its molecular weight and molecular weight distribution has had some reports with the research that improves the polypropylene articles performance successively from 60-70 since the age, but the suitable difference of the conclusion of these research reports.Generally speaking, do not find also mostly what tangible advantage this blending modification method has.United States Patent (USP) (R.L.Hudson, 1981, U.S.P.4,296,022) report, a small amount of high molecular weight polypropylene resin (melt flow index is 4-35) is added the spinning property that the less acrylic resin (melt flow index is 30-38) of molecular weight can improve acrylic resin, and its add-on is the 5-30%(high molecular weight polypropylene).But lack the relevant illustration that improves spinning property in this patent content.The mixture that another European patent (H.Horacek et al., 1989, EP 300,237) is spoken of the acrylic resin of different size can be used to make the polypropylene non-woven fabric matrix material.But the trend of developing in general, the new trade mark of acrylic resin in recent years abroad is main flow with the resin of developing high fluidity of molten, narrow molecular weight distributions still.Obtained very ten-strike though both at home and abroad the polymer of different varieties is carried out the research of blending and modifying, the research of polymer of the same race of different size being carried out blending and modifying does not also cause enough attention.
The objective of the invention is to wish that the polypropylene with different size cooperates by proper proportion, regulate its molecular weight and molecular weight distribution significantly, preparation has the novel polypropylene resin composite of excellent processing characteristics and quality product.
The good polypropylene fibre of polypropylene resin composite manufacturability energy of the present invention.Though some research reports are arranged in recent years to be pointed out: molecular weight distribution narrower (Mw/Mn is about 4-5), the molecular weight of the commodity acrylic resin made from the carrier model effective catalyst (to call the efficient catalytic polymer grade polypropylene in the following text) are less, than conventional catalyzed polymerization grade polypropylene fluidity of molten (referring to the polypropylene contrast by the same melt flow index) is preferably arranged, be applicable to the manufacturing polypropylene fibre.But our experimental result shows that the spinning properties of this class efficient catalytic polymer grade polypropylene resin (even the very high so-called fibre resin of fluidity of molten) is still relatively poor, often can not satisfy the requirement of making the high-quality polypropylene fibre.The spinning properties of the polypropylene resin composite of making according to principle of the present invention then obviously is better than the efficient catalytic polymer grade polypropylene resin that this molecular weight distribution is rather narrow.
The invention provides a kind of multi-usage resin combination of making by the different size polypropylene.It is to be mixed with suitable proportion with the chemical degradation polypropylene by polymer grade polypropylene (polypropylene of preferably selecting for use the carrier model effective catalyst to make), and adding processing aid composition.In this polypropylene resin composite, polymer grade polypropylene (comprising conventional polymer grade polypropylene resin, efficient catalytic polymer grade polypropylene resin and their mixture) components contents is the 2-95%(weight percent of polypropylene total amount), (MI measures according to ASTM D-1238 method its melt flow index, 230 ℃, 2.16 kilograms) be 0.5-20 gram/10 minutes; The content of chemical degradation polypropylene component is the 5-98%(weight percent of polypropylene total amount in the composition), its melt flow index is 10-170 gram/10 minutes.Processing aid in this polypropylene resin composite comprises that stablizer, FLOW IMPROVERS, static inhibitor, tinting material etc. are about polymer and micromolecular compound.For example, 2,6-di-tert-butyl-4-methy phenol (BHT), Irganox1010(four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester), the polymer protective agent Tin 622 of Ciba-Geigy company, Tin 944, Chinese Academy of Sciences chemistry hindered phenol or hindered amine light stabilizer and thermo-stabilizers such as polymer anti-aging agent PDS.The addition of every kind of stabilizer component in polypropylene resin composite is respectively the 0-1% of polypropylene gross weight; Preferable consumption is the 0.05-0.5% of polypropylene weight.FLOW IMPROVERS is calcium stearate, chain alkyl fatty amide etc., and the addition of every kind of FLOW IMPROVERS in polypropylene resin composite is respectively 0-1%, and preferable addition is the 0.05-0.5% of polypropylene weight.Tinting material often adds with the form of Masterbatch, and the addition of every kind of Masterbatch is respectively the 0-10% of acrylic resin gross weight, and usual amounts is 0-5%.Static inhibitor is a general goods, and addition depends on the needs.The interpolation total amount of processing aid is the 0.2-15% of polypropylene gross weight in the composition.Make polypropylene resin composite by the present invention, their melt flow index can be controlled in the narrower scope respectively, can be made into melt flow index (MI) and be controlled between the 4-100, molecular weight distributing index (Q) can be controlled in the multiple polypropylene resin composite product innovation between the 1.3-4.0.
The invention provides a kind of method for making of polypropylene resin composite.Polymer grade polypropylene resin that is about to select for use and chemical degradation of polypropylene resin mix according to suitable proportion, and the interpolation right amount of processing aids carefully mixes.Can serve many purposes and the polypropylene resin composite of the different size of excellent property with screw extrusion press mixing granulation manufactured.Their melt flow index (MI) can be controlled to be plurality of specifications such as 4-15,15-30,30-50,50-100 respectively, can regulate on request.This composition can be used for spinning the high-quality polypropylene fibre, and especially fine count fiber also can be used for making film etc.
With polypropylene resin composite of the present invention and at present the commodity acrylic resin carry out spinning relatively, the spinning properties of experimental result proof polypropylene resin composite is good, spin undrawn yarn be easy to high drafting, can be made into the polypropylene fibre of good mechanical properties.The performance of the processing characteristics of polypropylene resin composite and the fiber that is spun into all is better than efficient catalytic polymer grade polypropylene resin and the fibre product thereof that molecular weight distribution is rather narrow.
Context of the present invention can the further additional explanation of the following example, but can not think that the present invention only only limits to these examples of implementation.
Embodiment 1
A certain amount of conventional catalyzed polymerization grade polypropylene or efficient catalytic polymer grade polypropylene and a certain amount of chemical degradation polypropylene and processing aid are mixed,, make multiple polypropylene resin composite through the screw extrusion press extruding pelletization.The raw material of these polypropylene resin composite constitutes as shown in table 1.Table 1 has also been listed the melt flow index and the molecular weight distributing index of the polypropylene resin composite of making.
The polypropylene resin composite * of table 1 different size
* in per 100 parts of above-mentioned acrylic resins, the addition of processing aid is:
0.2 part of (1) 2,6-di-t-butyl-4-methyl-phenol
(2) Irganox is 1,010 0.2 parts
(3) calcium stearate is 0.1 part
The acrylic resin feature that the existing polypropylene production technology of table 2 is made
By table 1 as seen, adopt the said method of the present invention, can in quite wide melt flow index range and molecular weight distributing index (Q value) scope, regulate the specification of polypropylene resin composite, make it to adapt to the needs of different process for processing.And existing production method can only be produced the acrylic resin of less specification owing to be subjected to the restriction of the mode of production and production technology in limited scope.The polymer grade polypropylene resin that table 2 listed the polymerization-grade isotatic polypropylene resin made with conventional catalyst, make with effective catalyst and with the specification feature of the acrylic resin of chemical degradation manufactured.Usually only be suitable for making the product of MI＜20 with effective catalyst and conventional catalyst, the Q value of product is respectively 1.3-1.7 and 3.0-4.0; Though can make the bigger resin of MI with chemical degradation, along with MI increases, corresponding the reducing of Q value of product.Method of the present invention then can overcome the deficiency of above-mentioned three kinds of manufacture method.
Embodiment 2
With 50 parts of polymer grade polypropylenes (MI=1.4 gram/10 minutes, Q=1.3), 50 parts of chemical degradation polypropylene (MI=43 grams/10 minutes, Q=1.27) and a certain amount of processing aid mix (prescription sees Table 3), making melt flow index MI is 12.0, and the Q value is 2.8 polypropylene resin composite.This resin combination is 260 ℃ at melt temperature, and spinning speed is the polypropylene undrawn yarn that can spin different size under 400 meters/minute the condition, and these undrawn yarns have good drawing-off performance and become yarn quality, undrawn yarn one drafting multiple be 4.3-4.9 doubly.And fiber-grade pp resin (the MI=12.8 gram/10 minutes of the identical MI specification made from effective catalyst, Q=1.44) with the chemical degradation of polypropylene resin (MI=12.1 of the identical MI specification of producing with chemical degradation method, Q=1.8), though also can be wound into silk under identical melt-spun condition, undrawn yarn is difficult to drawing-off and becomes the good finished silk of mechanical property.The polypropylene resin composite efficient catalytic polymer grade polypropylene resin of above-mentioned three kinds of MI specifications identical (MI=12 gram/10 minutes) and chemical degradation of polypropylene resin are listed in table 3 with melt-spun and drawing-off experiment comparing result.As can be seen from Table 3, at melt temperature is that 260 ℃, wire winding speed are spinning under 400 meters/minute the condition, it is 1.7 dawn undrawn yarn that polypropylene resin composite of the present invention can be spun into filament number, but its maximum drafting multiple is 4.3 times, and the tensile strength of the finished fiber that makes after 3.5 times of drawing-offs is that 6.0 gram/dawn extension at breaks are 30%.And with other two kinds of comparative resin spin undrawn yarn drawing-off poor performance.If only use feed composition (polymer grade polypropylene resin) spinning in this polypropylene resin composite, under similar spinning condition, can not be spun into the undrawn yarn at filament number＜60 dawn.
The polypropylene resin composite of the identical MI value of table 3, polymer grade polypropylene resin reach
Chemical degradation of polypropylene resin melt-spun and drawing-off result
The finished silk that the drawing-off of acrylic resin undrawn yarn filament number maximum drafting multiple is 3.5 times
(dawn) (doubly)
The rupture stress extension at break
(gram/dawn) (%)
————————————————————
Acrylic resin 6.8 4.9--
Composition * 5.3 4.6 5.6 80
3.6 4.6 - -
1.7 4.3 6.0 30
————————————————————
Efficient catalytic 6.8 drawing-offs have lousiness--
Poly-3.0 drawing-offs of polymerization-grade have lousiness--
Acrylic resin 2.4 drawing-offs have lousiness--
(fibre resin) 1.7＜3.0--
——————————————————————
Chemical degradation 6.8 drawing-offs have lousiness--
Polypropylene 5.8 drawing-offs have lousiness--
Resin 4.5 drawing-offs have the loose ring silk--
3.2 3.9 - -
1.7 3.9 - -
——————————————————————
* the processing aid content in per 100 parts of polypropylene resin composite is identical with No. 8 sample in the table 1.
Embodiment 3
With reference to creating conditions of embodiment 1, with 10 parts of chemical degradation of polypropylene resin (MI=43 gram/10 minutes, Q=1.27) with 90 parts of efficient catalytic polymer grade polypropylene resins (MI=12.8 gram/10 minutes, Q=1.44) and a certain amount of processing aid mix, make polypropylene resin composite (MI=17.5 gram/10 minutes, Q=1.8, the prescription of processing aid is with No. 10 sample of table 1).This resin combination can be wound into the undrawn yarn that filament number was 6.9 dawn under the condition of 260 ℃ of melt temperatures, 400 meters/minute of winding speeds, this undrawn yarn maximum drafting multiple is 5.2 times, and drawing-off is stable, no lousiness; And efficient catalytic polymer grade polypropylene resin (being equivalent to the fibre resin in the commodity acrylic resin) (MI=12.8 gram/10 minutes, Q=1.44) spinning under above-mentioned the same terms, though can obtain the undrawn yarn that filament number was 6.9 dawn, but its drawing-off poor performance, when drafting multiple produces the lousiness broken end during greater than 1.5 times, normally drawing-off can not be made the finished fiber of good mechanical properties.
Embodiment 4
Under the spinning that is similar to embodiment 2, draw conditions, with efficient catalytic polymer grade polypropylene resin (MI=12.8 gram/10 minutes, Q=1.44, be commonly referred to the commercial resin of " fibre-grade " acrylic resin) in the wire winding speed spinning of 260 ℃ of spinning temperatures and 400 meters/minute, spin undrawn yarn be difficult for drawing-off successfully and become the good finished fiber of mechanical property.And, this commercial resin and a certain amount of chemical degradation of polypropylene resin (MI=43 gram/10 minutes) and a certain amount of processing aid proportionally are mixed with a series of polypropylene resin composite (table 4 is listed the deal of each component in some polypropylene resin composite and the melt flow index of the polypropylene resin composite made) according to method of the present invention.These polypropylene resin composite are carried out the spinning controlled trial with above-mentioned spinning, draw conditions, and test-results shows the spinning smoothly of these resin combinations, drawing-off smoothly, make the finished fiber of good mechanical properties.
Table 4 polypropylene resin composite *
The proportioning polypropylene resin composite of numbering material resin
(polymer grade polypropylene: the melt flow index chemical degradation polypropylene)
A 90:10 17.4
B 70:30 20
C 50:50 26
* in per 100 parts of acrylic resins, the addition of processing aid is:
0.2 part of (1) 2,6-di-t-butyl-4-methyl-phenol
(2) Irganox is 1,010 0.2 parts
(3) calcium stearate is 0.1 part
(4) Tin 944 (Ciba-Geigy) is 0.2 part
Table 5 makes the comparison of undrawn yarn (1.7 dawn of filament number) drawing-off performance and finished fiber mechanical property for these a series of polypropylene resin composite and polymer grade polypropylene resin.
Table 5 polypropylene resin composite and fiber-grade pp resin spinning properties are relatively
The finished silk that the acrylic resin maximum drafting is made through hot drawing-off
The multiple mechanical property
The breaking tenacity extension at break
(gram/dawn) (%)
Efficient catalytic polymerization-grade poly-third
Olefine resin (MI=12.8 gram/10 minutes)＜3--
Polypropylene resin composite A
(MI=17 gram/10 minutes) 4.5 5.9 50
Polypropylene resin composite B
(MI=20 gram/10 minutes) 4.5 6.5 30
Polypropylene resin composite C
(MI=26 gram/10 minutes) 4.7 5.7 25
Embodiment 5
Efficient catalytic polymer grade polypropylene resin (MI=1.4 gram/10 minutes, Q=1.3) (polypropylene is significantly degraded when being higher than 280 ℃ of spinning, is difficult to stablize spinning) all spinning smoothly under 230 ℃-280 ℃ spinning condition; With the chemical degradation method high-flowability polypropylene resin that modification is made to conventional catalysis acrylic resin (MI=35 gram/10 minutes) though can spinning smoothly in corresponding spinning temperature scope, its spinning, drawing-off performance are not ideal enough.And spinning controlled trial result shows, according to method of the present invention, with melt flow index is that 43 grams/10 minutes chemical degradation of polypropylene resin and above-mentioned polymer grade polypropylene resin and right amount of processing aids * carry out blending and modifying, makes melt flow index and is 30～45 and restrain the mechanical property that a series of polypropylene resin composite of/10 minutes can both be improved spinning, drawing-off performance and the finished silk of acrylic resin.The spinning of these resin combinations and above-mentioned two kinds of commodity acrylic resins, drawing-off performance comparing result are listed in table 6.
(in the * polypropylene resin composite, the processing aid of interpolation is with the table 4 among the embodiment 4)
Table 6 polypropylene resin composite and commodity acrylic resin spinning properties are relatively
Acrylic resin spinning winding maximum is led finished fiber
The temperature fiber number is stretched multiple
(℃) elongation of (dawn) (doubly) fiber number intensity
(dawn) gram/dawn (%)
Efficient catalytic polypropylene 230～60 the dawn----
Resin (MI=1.4 gram/10 minutes) 280
Acrylic resin spinning winding maximum is led finished fiber
The temperature fiber number is stretched multiple
(℃) elongation of (dawn) (doubly) fiber number intensity
(dawn) gram/dawn (%)
The chemical degradation polypropylene set 235 1.8 (reel----
Fat (MI=35 gram/10 minutes) silk lousiness)
255 1.7 4.2 0.57 6.6 20
Polypropylene resin composite * 235 3.5 5.0---
(MI=36 gram/10 minutes) 255 1.7 5.2 0.43 7.8 21
Polypropylene resin composite * 235 3.6 4.6---
(MI=45 gram/10 minutes) 235 2.4 4.6 0.7 5.4 15
* the processing aid that adds in polypropylene resin composite is with the table 4 among the embodiment 4.
Claims (9)
1, a kind of polypropylene resin composite, it is characterized in that: they are by polymer grade polypropylene resin for (1), chemical degradation of polypropylene resin and processing aid are formed, (2) its proportion of composing is the 2-95% that polymer grade polypropylene resin accounts for the acrylic resin gross weight, chemical degradation of polypropylene resin accounts for the 5-98% of acrylic resin gross weight, the total weight range of the interpolation of processing aid is to add 0.2-15 part (weight part) in per 100 parts of acrylic resin gross weights, (3) melt flow index of polypropylene resin composite goods (MI) is 4-100, the MI of the resin combination of different purposes specifications is respectively 4-15,15-30,30-50 and 50-100, the molecular weight distributing index of polypropylene resin composite (Q value) scope is 1.3-4.0, and said processing aid comprises stablizer, FLOW IMPROVERS, tinting material and static inhibitor.
2, polypropylene resin composite as claimed in claim 1, it is characterized in that said polymer grade polypropylene resin comprises conventional ziegler-natta catalyzed polymer grade polypropylene, efficient catalytic polymer grade polypropylene and their mixture, their melt flow index MI is 0.5-20, and the polyacrylic melt flow index MI of chemical degradation is 10-170; Said stablizer is Hinered phenols and hindered amines, comprise 2,6-di-tert-butyl-4-methy phenol (BHT), Irganox1010, Tin 622, Tin 944, polymeric anti-deteriorant PDS(Chinese Academy of Sciences chemistry invention), the addition of every kind of stablizer component in polypropylene resin composite is respectively the 0-1% of acrylic resin gross weight, is preferably 0.05-0.5%; Said FLOW IMPROVERS is calcium stearate, chain alkyl fatty amide, and its addition is respectively the 0-1% of polypropylene gross weight, and preferable amount is 0.05-0.5%; Said tinting material is a Masterbatch, and its addition is the 0-10% of polypropylene gross weight, and preferable amount is 0-5%; Static inhibitor is a general goods, optionally adds.
3, resin combination as claimed in claim 1 is characterized in that having prescription as shown in table 1 below, and they are made up of with the different amounts ratio polymer grade polypropylene with different MI and Q value and chemical degradation polypropylene.
The polypropylene resin composite * of table 1 different size
* in per 100 parts of above-mentioned acrylic resins, the addition of processing aid is:
0.2 part of (1) 2,6-di-t-butyl-4-methyl-phenol
(2) Irganox is 1,010 0.2 parts
(3) calcium stearate is 0.1 part
4, polypropylene resin composite as claimed in claim 1, it is characterized in that prescription is: 50 parts of (weight) polymer grade polypropylene (MI=1.4, Q=1.3), 50 parts of (weight) chemical degradation polypropylene (MI=43, Q=1.27) and processing aid 2,0.2 part of 6-di-tert-butyl-4-methy phenol, 0.1 part of 1,010 0.2 parts of Irganox and calcium stearate, they be mixed and made into MI be 12 and Q be 2.8 polypropylene resin composite.
5, polypropylene resin composite as claimed in claim 1 is characterized in that as following table 2 listed prescriptions:
Table 2 polypropylene resin composite *
————————————————————
The proportioning polypropylene resin composite of material resin
Polymer grade polypropylene: the polyacrylic MI of chemical degradation
(MI=12.8,Q=1.43)(MI=43,Q=1.27)
————————————————————
90:10 17.4
70:30 20
50:50 26
————————————————————
* the deal that adds processing aid in per 100 parts of (weight) acrylic resins:
2,6-di-t-butyl-0.2 part of 4-methyl-phenol (weight)
1,010 0.2 parts of Irganox (weight)
0.1 part of calcium stearate (weight)
944 0.2 parts of Tin (weight)
————————————————————
6, polypropylene resin composite as claimed in claim 1, it is characterized in that prescription: chemical degradation of polypropylene resin (MI=43) and efficient catalytic polymer grade polypropylene resin (MI=1.4, Q=1.3) and processing aid (addition with claim 5 in identical), mix, making melt flow index MI is a series of polypropylene resin composite of 30-45.
7, polypropylene resin composite as claimed in claim 1 is used to make polypropylene fibre and polypropylene film.
8, a kind of method for making of polypropylene resin composite, it is characterized in that polymer grade polypropylene resin and the chemical degradation of polypropylene resin that will select for use mix according to a certain percentage, the polyacrylic proportional range of this two class is 2: 98 to 95: 5, be the 2-95% that polymer grade polypropylene accounts for polypropylene gross weight in the polypropylene resin composite, the chemical degradation polypropylene accounts for the 5-98% of polypropylene gross weight in the polypropylene resin composite, and in per 100 parts of this acrylic resin mixtures, add 0.2-15 part (weight) processing aid, careful even blend.
9, the manufacture method of polypropylene resin composite as claimed in claim 8, it is characterized in that the various components described in the claim 3 are proportionally cooperated, then through the screw extrusion press mixing granulation, make the polypropylene resin composite section, the melt flow index of these polypropylene resin composite sections is controlled at respectively in 4-15,15-30,30-50 and the 50-100 scope.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91104650 CN1037183C (en) | 1991-07-13 | 1991-07-13 | Polypropylene resin combination and its preparing process |
| GB9214821A GB2258869B (en) | 1991-07-13 | 1992-07-13 | Composition of polypropylene resin and process for preparing the composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91104650 CN1037183C (en) | 1991-07-13 | 1991-07-13 | Polypropylene resin combination and its preparing process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1068580A true CN1068580A (en) | 1993-02-03 |
| CN1037183C CN1037183C (en) | 1998-01-28 |
Family
ID=4906730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91104650 Expired - Fee Related CN1037183C (en) | 1991-07-13 | 1991-07-13 | Polypropylene resin combination and its preparing process |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1037183C (en) |
| GB (1) | GB2258869B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1058062C (en) * | 1996-12-27 | 2000-11-01 | 中国科学院化学研究所 | Manufacture of polypropylene staple of thin denier |
| CN1073595C (en) * | 1995-11-24 | 2001-10-24 | 中国科学院化学研究所 | Polypropylene resin composition, preparation method and uses thereof |
| CN107513814A (en) * | 2017-07-04 | 2017-12-26 | 马鞍山市鑫程纳米新材料科技有限公司 | A kind of preparation method for improving spunbonded polypropylene non-woven fabrics elasticity |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK0552013T3 (en) * | 1992-01-13 | 1999-10-18 | Hercules Inc | Thermally bondable fibers for high-strength nonwoven fabrics |
| SG50447A1 (en) | 1993-06-24 | 1998-07-20 | Hercules Inc | Skin-core high thermal bond strength fiber on melt spin system |
| US5443898A (en) * | 1993-06-29 | 1995-08-22 | Fiberweb North America, Inc. | Nonwoven webs and method of making same |
| DE4334922C2 (en) * | 1993-10-13 | 1995-08-24 | Rieter Automatik Gmbh | Process for the production of fibers from polyolefins |
| EP0719879B1 (en) | 1994-12-19 | 2000-07-12 | Hercules Incorporated | Process for producing fibers for high strength non-woven materials, and the resulting fibers and non-wovens |
| ES2151280T3 (en) * | 1996-06-26 | 2000-12-16 | Ciba Sc Holding Ag | DEGRADATION OF POLYMERS THROUGH NOR-HALS COMPOUNDS. |
| US6593004B1 (en) | 1998-10-14 | 2003-07-15 | Union Carbide Chemicals & Plastics Technology Corporation | Extrusion coating composition |
| TW579394B (en) * | 2001-04-24 | 2004-03-11 | Rhodia Industrial Yarns Ag | Process for the production of fine monofilaments made from polypropylene, fine monofilaments made from polypropylene, and their application |
| JP2006526503A (en) * | 2003-06-05 | 2006-11-24 | キュノ、インコーポレーテッド | Process for producing filter elements using polyolefins having constant rheological properties |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5685417A (en) * | 1979-11-13 | 1981-07-11 | Phillips Petroleum Co | Polyolefin product and method |
| US4296022A (en) * | 1980-06-04 | 1981-10-20 | Chevron Research | Polypropylene blend compositions |
| US4384098A (en) * | 1981-01-13 | 1983-05-17 | Phillips Petroleum Company | Filamentary polypropylene and method of making |
| CA1318056C (en) * | 1987-02-26 | 1993-05-18 | Hirokazu Nakazima | High stiffness propylene polymer composition |
| GB2206525B (en) * | 1987-07-08 | 1990-03-07 | Courtaulds Films & Packaging | Orientated polypropylene films |
| DE3724155A1 (en) * | 1987-07-21 | 1989-02-02 | Lentia Gmbh | COMPOSITE MADE OF POLYPROPYLENE REINFORCED WITH FIBER MATS |
| JP2546859B2 (en) * | 1987-10-08 | 1996-10-23 | 東燃株式会社 | Ethylene polymerization catalyst |
-
1991
- 1991-07-13 CN CN 91104650 patent/CN1037183C/en not_active Expired - Fee Related
-
1992
- 1992-07-13 GB GB9214821A patent/GB2258869B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1073595C (en) * | 1995-11-24 | 2001-10-24 | 中国科学院化学研究所 | Polypropylene resin composition, preparation method and uses thereof |
| CN1058062C (en) * | 1996-12-27 | 2000-11-01 | 中国科学院化学研究所 | Manufacture of polypropylene staple of thin denier |
| CN107513814A (en) * | 2017-07-04 | 2017-12-26 | 马鞍山市鑫程纳米新材料科技有限公司 | A kind of preparation method for improving spunbonded polypropylene non-woven fabrics elasticity |
| CN107513814B (en) * | 2017-07-04 | 2021-08-06 | 马鞍山市鑫程纳米新材料科技有限公司 | Preparation method for improving elasticity of spun-bonded polypropylene non-woven fabric |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2258869A (en) | 1993-02-24 |
| GB9214821D0 (en) | 1992-08-26 |
| CN1037183C (en) | 1998-01-28 |
| GB2258869B (en) | 1996-01-31 |
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