CN101798422A - Production method of polypropylene cooling masterbatch - Google Patents
Production method of polypropylene cooling masterbatch Download PDFInfo
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Abstract
The invention discloses a production method of polypropylene cooling masterbatch, including the following steps: (1) mixing: the following components by parts by weight are mixed for 10-20 minutes: 50-90 parts of polypropylene resin, 0.5-9.5 parts of dispersing agent, 0.1-0.6 part of surface modifier, 0.1-2.7 parts of lubricant and 0.2-0.8 part of liquidity regulator, and then the following components by parts by weight are sequentially added: 0.1-0.9 part of light stabilizer, 0.1-1.6 parts of antioxidant and 0.2-7 parts of molecular weight regulator, and mixing is carried out for 5-15 minutes; (2) pelletizing: the mixed material is subject to melt extrusion at 130-230 DEG C and then grain-sized dicing is carried out. The invention adopts compound peroxide as molecular weight regulator and adopts compound antioxidant, compound dispersing agent, compound light stabilizer and compound lubricant, and the produced polypropylene cooling masterbatch has the advantages of high initiator content, good dispersity and obvious cooling effect and modification effect.
Description
Technical field
The present invention relates to polyacrylic deep processing, relate in particular to a kind of production method of polypropylene cooling masterbatch.
Background technology
Polypropylene (PP) cooling masterbatch is to be main raw material with the polypropylene, adds auxiliary agents such as molecular weight regulator, oxidation inhibitor, dispersion agent, under the processing condition of regulation, and the resin particle that makes through technical process such as batch mixing, extruding pelletizations.Acrylic resin adds and uses man-hour cooling masterbatch can regulate the size of polypropylene molecule amount, promptly regulates polyacrylic melting index, can regulate the polypropylene molecule amount again and distribute, and it is narrower that the polypropylene molecule amount is distributed, and increases polyacrylic flowability.Polypropylene cooling masterbatch is mainly used in the processing temperature that reduces in polypropylene spinning and the plastics production, especially best results in PP long or short filament spinning process.Also be widely used in the production of goods such as PP blown film, textile bag, monofilament, injection moulding, PP tubing simultaneously, can improve the melting index of resin, increase resin color range, improve tensile property; Also help the dispersion of tinting material simultaneously, make that the goods appearance is more attractive in appearance; Prevent polypropylene and wherein tinting material localized degradation or decomposition when continuous high temperature, reduce and shrink, strengthen rigidity, make resin can stably extrude tie rod.
Can learn that on polyacrylic constructional feature owing to contain unsymmetrical carbon on the polypropylene backbone, so polypropylene exists different primary structures, during polymer crystallization, can only partial crystallization, be difficult to obtain similar inorganic high-purity crystals.But along with the variation of crystallization condition, can cause the variation of molecular chain conformation or the change of accumulation mode, form several different crystal formations.The common crystal formation of polypropylene is an alpha-crystal form, under special processing conditions, can obtain the beta crystal of hexagonal system, compare with alpha-crystal form, the spherulite size of beta crystal PP reduces significantly, grain refining, interconnecting between the harness shape structure of beta crystal and the geode make it have good room temperature and low-temperature impact resistance and higher heat-drawn wire.In polyacrylic production, can regulate and the crystallization control form by adding means such as cooling masterbatch, can improve original structure of PP resin and performance, improve its shock resistance and cold tolerance, the heat-drawn wire height, show high toughness and ductility under high-speed stretch, be difficult for embrittlement, these characteristics have been expanded polyacrylic Application Areas greatly.The more way of adding cooling masterbatch that still adopts of present domestic polypropylene chip spinning technique is to improve polyacrylic spinning property.This way is used more convenient, ratio can arbitrarily be controlled, polypropylene to the different trades mark can both carry out modification, and modified effect is remarkable, can produce high-quality third with the acrylic resin of the various trades mark and take turns fine count fiber, enlarged weaving and used polyacrylic specification limit, technology controlling and process is also simpler.After using cooling masterbatch, improve spinning process, reduced energy consumption, improved the productive labor environment, and can make products production stable, even, efficient, obviously improved quality product.
Polypropylene fibre, domestic title polypropylene fibre, the synthon that make for the raw material spinning with the isotatic polypropylene are kinds the lightest in the man-made fiber; Intensity is 35～62cN/dtex; Wear resistance is only second to tynex; Erosion resistance is good, and is especially fine to mineral acid, alkaline stability; Not mouldy, without putrefaction is not afraid of and is damaged by worms etc.The polypropylene fibre product has long filament, staple fibre, shaped filaments, bristlelike monofilament, cutting silk, film to split silk, spray silk etc., mainly is used in decorating cloth and industrial circle, also can be used for making various coats, underwear, swim suit, sweater, socks and cotton for wadding etc.Polypropylene is because the relative molecular mass height, relative molecular mass distributes wide, therefore melt temperature is higher, the spinning technique temperature is higher, even when low speed spinning staple fibre, spinning temperature is also up to 290 ℃, even more than 300 ℃, so just make decomposition such as auxiliary agent, pigment easily, brought a lot of difficulties to spinning processing.If processing temperature is too high, not only waste electric energy, worsen the productive labor environment, more can influence quality product, equipment life and production efficiency.The polypropylene of existing melting index lower (less than 30) is not suitable for spinning at a high speed the requirement of fine-denier polypropylene filament substantially, so develop the focus that relatively low and polypropylene relative molecular mass distribution relative narrower of relative molecular mass becomes people and paid close attention to always.
Although the existing cooling masterbatch that with the acrylic resin is carrier, the multiple difference in functionality auxiliary agent of adding prepare has many advantages, still have following deficiency in using: the dyeing of (1) finished fiber is difficulty; (2) anti-opticity is poor; (3) static is big; (4) flame resistivity is poor, needs to adopt the method that adds various additives to be improved; (5) to producing the ingredient requirement height of polypropylene fibre, needing its degree of isotacticity is 97%～98%, can not be lower than 96%, and molecular-weight average is 180000～300000, and degree of crystallinity is more than 65%, and heat decomposition temperature is 350～380 ℃, and fusing point is 158～176 ℃ etc.; (5) polypropylene is owing to be by Ziegler-Natta catalyst system polymeric, thereby can not produce the secondary activity center, has only the linear chain structure, causes the low and refractory of its melt strength shortcomings such as poor performance of hanging down; Under the molten state, polypropylene does not have strain hardening effect, and the auxiliary agent in the existing prescription still is weak for change intensity, melt stability etc.; (6) polyacrylic softening temperature and fusing point are approaching, and melt strength descended rapidly after temperature surpassed fusing point, and product wall thickness inequality when causing thermoforming is extruded, is coated with, is occurred edge curl, contraction when rolling, abscess problem such as subside during extrusion foaming.The composition of cooling masterbatch and the coupling of various auxiliary agents then seem particularly important.Basic identical in view of different ingredients PP cooling masterbatch production unit, kind and the consumption production performance by changing raw material, various interpolation auxiliary agents be good, meet the polypropylene processing request, overcome emphasis and difficult point that the existing insufficient new prescription cooling masterbatch of cooling masterbatch then becomes research and development.
The inventor draws with experiment through big quantity research: only add the plural components that adds similar application performance on the basis of organo-peroxide, oxidation inhibitor, dispersion agent etc. again in existing cooling masterbatch production, by new interpolation photostabilizer, properties-correcting agent, lubricant, flowing regulator etc., it is carried out physics, chemical modification, final definite suitable fabrication process condition, can produce the higher and stable polypropylene cooling masterbatch of peroxide level, show through detection and application: quality product is far above the cooling masterbatch of existing kind.
Summary of the invention
Technical problem to be solved by this invention provides a kind of initiator content height, good dispersity, cooling-down effect and the significant production method of polypropylene cooling masterbatch of modified effect.
For solving the problems of the technologies described above, technical scheme of the present invention is:
A kind of production method of polypropylene cooling masterbatch may further comprise the steps:
(1) batch mixing: successively with following weight part: 50～90 parts of acrylic resins, 0.5～9.5 part of dispersion agent, 0.1～0.6 part of surface-modifying agent, 0.1～2.7 part of lubricant and flowing regulator mixed 10～20 minutes for 0.2～0.8 part, add 0.2～7 part of 0.1～0.9 part of photostabilizer, 0.1～1.6 part in oxidation inhibitor and molecular weight regulator more successively, continue to mix 5～15 minutes.
(2) granulation: the material that mixes is melt extruded the back pelletizing when temperature is 180 ± 50 ℃, screw extruder divides eight temperature provinces to carry out fusion during described fusion.
Wherein, described molecular weight regulator is compound superoxide, described compound superoxide is an organo-peroxide 2,5 one dimethyl 1,5 one two (tert-butyl hydroperoxide) hexane: 1～3 part, 1,1-di-t-butyl peroxy-3,3,5-trimethylammonium cyclohexane: 0.2～2 part or tert butyl peroxy benzoate: one or more in 0.2～2 part.
Wherein, described oxidation inhibitor is composite antioxidant, described composite antioxidant is an antioxidant 1076: 0.1～0.6 part, oxidation inhibitor 168:0.1～0.5 part or oxidation inhibitor N, N '-two [3-(3 ', 5 '-di-t-butyl 4 '-hydroxy phenyl) propionyl] hexanediamine: one or more in 0.1～0.5 part.
Wherein, described dispersion agent is a composite dispersing agent, and described composite dispersing agent comprises Poly Propylene Wax: 2～8 parts or magnesium stearate: one or more in 0.5～1.5 part.
Wherein, described photostabilizer is a composite light stabilizer, and described composite light stabilizer is one or more in photostabilizer 622:0.1～0.6 part or photostabilizer 944:0.1～0.3 part.
Wherein, described surface-modifying agent is PP-b-PS:0.1～0.6 part.
Wherein, described lubricant is a compounded lubricant, and described compounded lubricant is lubricant RH300:0.5～1.5 part or XH-202B type special efficacy bright lubricant: one or more in 0.1～1.2 part.
Wherein, described flowing regulator is macromolecule tackifer LM216.
As a kind of preferred version, several plural components in the above molecular weight regulator, oxidation inhibitor, dispersion agent, photostabilizer and the lubricant all add fashionable modified effect the best.
Owing to adopted technique scheme, the invention has the beneficial effects as follows:
The present invention is owing to adopted compound superoxide as molecular weight regulator, and oxidation inhibitor, dispersion agent, photostabilizer and lubricant all adopt composite antioxidant, composite dispersing agent, composite light stabilizer and compounded lubricant, and the polypropylene cooling masterbatch of being produced has following characteristics:
1, volatility is little, the initiator content height, and the active o content height, the speed of PP molecular chain degradation is fast, the efficient height, so the PP relative molecular mass reduces, and the relative molecular mass distribution narrow, fusing point slightly descends.
2, the PP that contains this master batch through melting index homogeneous after the granulation repeatedly and molten refer to change little.
3, concentration height does not contain any mineral filler, and extremely strong flowing property is arranged, and good dispersiveness, melting index are very high, and good surface gloss is arranged, and suitable transparency is nontoxic, tasteless, good stability under the normal temperature.
4, the cooling masterbatch of the present invention's preparation can significantly reduce processing temperature (can reduce by 20 ℃～90 ℃) in polypropylene spinning processing, can significantly improve shaping speed, improves output, saves materials, cut down the consumption of energy, shortens shaping cycle; The relative molecular mass of PP is reduced, the relative molecular mass distribution narrow, fusing point also slightly descends, thereby improved its spinning properties greatly, made the high speed spinning of PP become possibility, and the supramolecular structure of high-speed spinning POY has been had bigger influence, degree of crystallinity, the orientation degree of pre-oriented yarn are obviously reduced, and crystal habit changes, and is converted into the beta crystal of the accurate hexagonal structure with good post-treatment performance by alpha-crystal form, has improved the quality of finished product after the PP spinning.
5, add the cooling masterbatch of the present invention's preparation during polypropylene spinning after, the polypropylene that eutectic refers to is the same to be spun, and has widened the raw material sources channel, and can further stablize complete processing, is showing and is improving the quality of products.
6, the cooling masterbatch that in the processing of polypropylene injection-molded item, adds the present invention's preparation, can regulate polypropylene melt index, improve mobile and product surface glossiness, shorten the process-cycle, the scrap rate of goods is descended, qualification rate obviously rises, and has improved the resistance to impact shock and the tensile strength of plastics, and ageing-resistant performance, has prolonged work-ing life of goods.Effect is particularly outstanding when injection moulding die cavity the part with complicated structure and container.Use it can make color even in dark goods, the decomposition of pigment, auxiliary agent reduces.
Embodiment
Further set forth the present invention below in conjunction with specific embodiment.
Embodiment 1
(1) batching is prepared raw material according to following weight metering:
1, acrylic resin: 50Kg.
2, organo-peroxide: 2,5 one dimethyl one 2,5 one two (tert-butyl hydroperoxide) hexane: 1.1Kg; 1,1-di-t-butyl peroxy-3,3,5-trimethylammonium cyclohexane: 0.2Kg; Tert butyl peroxy benzoate: 0.4Kg.
3, oxidation inhibitor: antioxidant 1076: 0.2Kg: oxidation inhibitor 168:0.1Kg: oxidation inhibitor N, N '-two [3-(3 ', 5 '-di-t-butyl 4 '-hydroxy phenyl) propionyl] hexanediamine: 0.1Kg.
4, dispersion agent: trade names SHYS-520 Poly Propylene Wax (PP wax): 3Kg; Magnesium stearate: 0.5Kg.
5, photostabilizer: photostabilizer 622:0.15Kg: photostabilizer 944:0.1Kg.
6, surface-modifying agent: PP surface-modifying agent trade names PP-b-PS (hydroxyl-terminated polylactic acid derived product): 0.2Kg.
7 lubricants: lubricant trade names RH300:0.6Kg; XH-202B type special efficacy bright lubricant: 0.2Kg.
8, flowing regulator: macromolecule tackifer trade names LM216:0.3Kg.
(2) the processing parameter setting value is as follows
1, the screw extrusion press melt temperature is set:
190 ℃ in 190 ℃ of 3 district, 170 ℃ of 2 district, 1 district
190 ℃ in 190 ℃ of 6 district, 190 ℃ of 5 district, 4 districts
180 ℃ in 180 ℃ of 8 district, 7 districts
2, head melt pressure: 1.2MPa
3, screw rod motor speed: 250 rev/mins of feeding rotating speeds; 40 rev/mins
4, dicing machine rotating speed: 900 rev/mins
(3) preparation:
(1) batch mixing: acrylic resin, dispersion agent, surface-modifying agent, lubricant and flowing regulator are added in the mixer mixed 12 minutes successively, successively photostabilizer, oxidation inhibitor and molecular weight regulator are added in the mixer again, continue to mix 8 minutes, mixed good material is joined the forcing machine feed bin.
(2) granulation: start forcing machine master electric machine speed regulation to 250 rev/min, when restarting 40 rev/mins of feeding machines, open positive displacement, the material that mixes is melt extruded granulation afterwards.Earlier dicing machine is transferred to 800 rev/mins, will expects that again bar guides to dicing machine through water bath, according to the pelletizing situation dicing machine rotating speed is transferred to 900 rev/mins, the pelletizing particle diameter is at Φ 2.5 ± 0.3mm.With the master batch of weighing, to insert the material pond and screen, the bar grain that range estimation does not conform to technical requirements filters out, and mixing is more than three times, packs after qualified through chemically examining.
(4) the cooling masterbatch quality of aforesaid method production sees Table 1.
Table 1
Embodiment 2
(1) batching is prepared raw material according to following ratio metering:
1, acrylic resin: 60Kg.
2, organo-peroxide: 2,5 one dimethyl one 2,5 one two (tert-butyl hydroperoxide) hexane: 1.3Kg; 1,1-di-t-butyl peroxy-3,3,5-trimethylammonium cyclohexane: 0.25Kg: tert butyl peroxy benzoate: 0.5Kg.
3, oxidation inhibitor: antioxidant 1076 0.25Kg: oxidation inhibitor 168:0.15Kg; Oxidation inhibitor N, N '-two [3-(3 ', 5 '-di-t-butyl 4 '-hydroxy phenyl) propionyl] hexanediamine: 0.15Kg.
4, dispersion agent: trade names SHYS-520 Poly Propylene Wax (PP wax): 3.5Kg; Magnesium stearate: 0.65Kg.
5, photostabilizer: photostabilizer 622:0.18Kg; Photostabilizer 944:0.15Kg.
6, surface-modifying agent: PP surface-modifying agent trade names PP-b-PS (hydroxyl-terminated polylactic acid derived product): 0.3Kg.
7 lubricants: lubricant trade names RH300:0.8Kg:XH-202B type special efficacy bright lubricant: 0.3Kg.
8, flowing regulator: macromolecule tackifer trade names LM216:0.4Kg.
(2) the processing parameter setting value is as follows:
1, the screw extrusion press melt temperature is set:
200 ℃ in 200 ℃ of 3 district, 180 ℃ of 2 district, 1 district
200 ℃ in 200 ℃ of 6 district, 200 ℃ of 5 district, 4 districts
190 ℃ in 190 ℃ of 8 district, 7 districts
2, head melt pressure: 1.5MPa
3, screw rod motor speed: 280 rev/mins; The feeding rotating speed; 50 rev/mins
4, dicing machine rotating speed: 850 rev/mins
(3) preparation:
(1) batch mixing: acrylic resin, dispersion agent, surface-modifying agent, lubricant and flowing regulator are added in the mixer mixed 15 minutes successively, successively photostabilizer, oxidation inhibitor and molecular weight regulator are added in the mixer again, continue to mix 10 minutes, mixed good material is joined the forcing machine feed bin.
(2) granulation: start forcing machine master electric machine speed regulation to 280 rev/min, when restarting 50 rev/mins of feeding machines, open positive displacement, the material that mixes is melt extruded granulation afterwards.Earlier dicing machine is transferred to 750 rev/mins, will expects that again bar guides to dicing machine through water bath, according to the pelletizing situation dicing machine rotating speed is transferred to 850 rev/mins, the pelletizing particle diameter is at Φ 2.5 ± 0.3mm.With the master batch of weighing, to insert the material pond and screen, the bar grain that range estimation does not conform to technical requirements filters out, and mixing is more than three times, packs after qualified through chemically examining.
(4) the cooling masterbatch quality of aforesaid method production sees Table 2.
Table 2
Embodiment 3
(1) batching is prepared raw material according to following ratio metering:
1, acrylic resin: 75Kg.
2, organo-peroxide: 2,5 one dimethyl one 2,5 one two (tert-butyl hydroperoxide) hexane: 1.6Kg:1,1-di-t-butyl peroxy-3,3,5-trimethylammonium cyclohexane: 0.3Kg; Tert butyl peroxy benzoate: 0.65Kg.
3, oxidation inhibitor: antioxidant 1076: 0.35Kg: oxidation inhibitor 168:0.15Kg: oxidation inhibitor N, N '-two [3-(3 ', 5 '-di-t-butyl 4 '-hydroxy phenyl) propionyl] hexanediamine: 0.12Kg
4, dispersion agent: trade names SHYS-520 Poly Propylene Wax (PP wax): 4.5Kg: magnesium stearate: 0.8Kg.
5, photostabilizer: photostabilizer 622:0.2Kg 3; Photostabilizer 944:0.2Kg 5
6, surface-modifying agent: PP surface-modifying agent trade names PP-b-PS (hydroxyl-terminated polylactic acid derived product): 0.4Kg.
7, lubricant: lubricant trade names RH300:1.05Kg; XH-202B type special efficacy bright lubricant: 0.45Kg.
8, flowing regulator: macromolecule tackifer trade names LM216:0.5Kg.
(2) the processing parameter setting value is as follows:
1, the screw extrusion press melt temperature is set:
220 ℃ in 220 ℃ of 3 district, 200 ℃ of 2 district, 1 district
220 ℃ in 220 ℃ of 6 district, 220 ℃ of 5 district, 4 districts
210 ℃ in 210 ℃ of 8 district, 7 districts
2, head melt pressure: 1.6MPa
3, screw rod motor speed: 300 rev/mins of feeding rotating speeds; 60 rev/mins
4, dicing machine rotating speed: 850 rev/mins
(3) preparation:
(1) batch mixing: acrylic resin, dispersion agent, surface-modifying agent, lubricant and flowing regulator are added in the mixer mixed 18 minutes successively, successively photostabilizer, oxidation inhibitor and molecular weight regulator are added in the mixer again, continue to mix 12 minutes, mixed good material is joined the forcing machine feed bin.
(2) granulation: start forcing machine master electric machine speed regulation to 300 rev/min, when restarting 60 rev/mins of feeding machines, open positive displacement, the material that mixes is melt extruded granulation afterwards.Earlier dicing machine is transferred to 750 rev/mins, will expects that again bar guides to dicing machine through water bath, according to the pelletizing situation dicing machine rotating speed is transferred to 850 rev/mins, the pelletizing particle diameter is at Φ 2.5 ± 0.3mm.With the master batch of weighing, to insert the material pond and screen, the bar grain that range estimation does not conform to technical requirements filters out, and mixing is more than three times, packs after qualified through chemically examining.
(4) the cooling masterbatch quality of aforesaid method production sees Table 3.
Table 3
Claims (8)
1. production method of polypropylene cooling masterbatch is characterized in that may further comprise the steps:
(1) batch mixing: successively with following weight part: 50～90 parts of acrylic resins, 0.5～9.5 part of dispersion agent, 0.1～0.6 part of surface-modifying agent, 0.1～2.7 part of lubricant and flowing regulator mixed 10～20 minutes for 0.2～0.8 part, add 0.2～7 part of 0.1～0.9 part of photostabilizer, 0.1～1.6 part in oxidation inhibitor and molecular weight regulator more successively, continue to mix 5～15 minutes;
(2) granulation: the material that mixes is melt extruded the back pelletizing when temperature is 180 ± 50 ℃.
2. production method of polypropylene cooling masterbatch as claimed in claim 1, it is characterized in that: described molecular weight regulator is compound superoxide, described compound superoxide is an organo-peroxide 2,5 one dimethyl 1,5 one two (tert-butyl hydroperoxide) hexane: 1～3 part, 1,1-di-t-butyl peroxy-3,3,5-trimethylammonium cyclohexane: 0.2～2 part or tert butyl peroxy benzoate: one or more in 0.2～2 part.
3. production method of polypropylene cooling masterbatch as claimed in claim 1, it is characterized in that: described oxidation inhibitor is composite antioxidant, described composite antioxidant is an antioxidant 1076: 0.1～0.6 part, oxidation inhibitor 168:0.1～0.5 part or oxidation inhibitor N, N '-two [3-(3 ', 5 '-di-t-butyl 4 '-hydroxy phenyl) propionyl] hexanediamine: one or more in 0.1～0.5 part.
4. production method of polypropylene cooling masterbatch as claimed in claim 1 is characterized in that: described dispersion agent is a composite dispersing agent, and described composite dispersing agent comprises Poly Propylene Wax: 2～8 parts or magnesium stearate: one or more in 0.5～1.5 part.
5. production method of polypropylene cooling masterbatch as claimed in claim 1, it is characterized in that: described photostabilizer is a composite light stabilizer, and described composite light stabilizer is one or more in photostabilizer 622:0.1～0.6 part or photostabilizer 944:0.1～0.3 part.
6. production method of polypropylene cooling masterbatch as claimed in claim 1 is characterized in that: described surface-modifying agent is PP-b-PS:0.1～0.6 part.
7. production method of polypropylene cooling masterbatch as claimed in claim 1, it is characterized in that: described lubricant is a compounded lubricant, and described compounded lubricant is lubricant RH300:0.5～1.5 part or XH-202B type special efficacy bright lubricant: one or more in 0.1～1.2 part.
8. production method of polypropylene cooling masterbatch as claimed in claim 1 is characterized in that: described flowing regulator is macromolecule tackifer LM216.
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| CN102675732A (en) * | 2011-03-10 | 2012-09-19 | 北京伊士通新材料发展有限公司 | Polypropylene mixture, and preparation method and application thereof |
| CN103012965A (en) * | 2012-12-05 | 2013-04-03 | 芜湖纽麦特新材料有限公司 | Modified polypropylene composite and preparation method thereof |
| CN108822314A (en) * | 2018-04-18 | 2018-11-16 | 大庆海跃达科技有限公司 | A kind of polypropylene cooling masterbatch and its production method and the production die orifice for implementing this method |
| CN109082009A (en) * | 2018-07-12 | 2018-12-25 | 锦州英诺威科技服务有限公司 | A kind of high melting means polypropylene fibre rheology comprehensively modifying master batch and preparation method thereof |
| CN112341643A (en) * | 2020-09-21 | 2021-02-09 | 江苏鑫易达新材料科技有限公司 | TPU color master batch, anti-migration printing TPU film and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102675730A (en) * | 2011-03-10 | 2012-09-19 | 北京伊士通新材料发展有限公司 | Hydrophilic polypropylene mixture and preparing method and application thereof |
| CN102675732A (en) * | 2011-03-10 | 2012-09-19 | 北京伊士通新材料发展有限公司 | Polypropylene mixture, and preparation method and application thereof |
| CN102675732B (en) * | 2011-03-10 | 2014-04-09 | 北京伊士通新材料发展有限公司 | Polypropylene mixture, and preparation method and application thereof |
| CN102675730B (en) * | 2011-03-10 | 2015-12-16 | 北京伊士通新材料发展有限公司 | A kind of hydrophilic polypropylene compound and its preparation method and application |
| CN103012965A (en) * | 2012-12-05 | 2013-04-03 | 芜湖纽麦特新材料有限公司 | Modified polypropylene composite and preparation method thereof |
| CN103012965B (en) * | 2012-12-05 | 2014-12-31 | 芜湖纽麦特新材料有限公司 | Modified polypropylene composite and preparation method thereof |
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| CN109082009A (en) * | 2018-07-12 | 2018-12-25 | 锦州英诺威科技服务有限公司 | A kind of high melting means polypropylene fibre rheology comprehensively modifying master batch and preparation method thereof |
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