CN103087405A - Preparation method of binary composite polypropylene nucleating agent, prepared nucleating agent, and application thereof - Google Patents
Preparation method of binary composite polypropylene nucleating agent, prepared nucleating agent, and application thereof Download PDFInfo
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Abstract
The invention discloses a preparation method of a binary composite polypropylene nucleating agent, a prepared nucleating agent, and an application thereof. The method comprises the step that the nucleating agent is prepared after inorganic nano-particles and an organic nucleating agent are mixed and grinded. The nucleating agent is composed of the inorganic nano-particles and the organic nucleating agent with a weight ratio of 95:5-5:95. The inorganic nano-particles are attapulgite or silicon dioxide. The range of the particle size of silicon dioxide is 5-100nm. The inorganic nucleating agent is 2,2'-methylene-bis(4,6-di-n-butylphenol)sodium phosphate. The nucleating agent is applied in reinforced polypropylene. With the method provided by the invention, prepared polypropylene nucleating agent has the advantages of low dose, low cost, simple preparation process, improved mechanical performance, and the like. The polypropylene nucleating agent is an ideal polypropylene resin mechanical modifying agent with synergetic effect.
Description
Technical field
The present invention relates to organic chemistry filed, say further, relate to a kind of preparation method and nucleator prepared therefrom and application of binary composite polypropylene nucleator.
Background technology
Polypropylene is a kind of thermoplastics be widely used, cheap and over-all properties is better, can further improve mechanical property and the optical property of polypropylene articles by adding nucleator, realizes the polypropylene high performance.
Polyacrylic nucleator be a class for improving the crystalling propylene behavior, thereby improve the auxiliary agent of its physical and mechanical properties and thermomechanical property.Nucleator is divided into mineral-type, glucitols, phosphoric acid salt, rosin based and high score subclass nucleator.
At present, on market, widely used polypropylene nucleater is organic nucleating agent, as NA11[2,2 '-ylidene methyl-bis-(4,6-di-n-butyl phenol) sodium phosphate], NA-2l[methylene-bis (2,4-di-tert-butyl-phenyl) aluminum phosphate] etc.The organic nucleating agent consumption is few, and nucleating effect is obvious, can improve polyacrylic Tc, and good stability increases just effectively, can significantly improve polyacrylic heat-drawn wire and mechanical property, but this type of nucleator price is higher.
Advantages such as that inorganic nano-particle relies on is cheap, modified effect is obvious and also be subject to already numerous investigators' research as polyacrylic filling modifying agent, but because the inorganic nano-particle particle diameter is little, specific surface area large, surface can be high, very easily mutually reunite, be difficult to bring into play to greatest extent nano effect, the method of the main employing of investigators organism modified inorganic nano-particle reduces the surface energy of its nanoparticle, improves the consistency of nanoparticle and polymkeric substance.Inorganic particulate silicon-dioxide and attapulgite, while using as nucleator, nucleating effect is general, but low price.
Polypropylene nucleater is a kind ofly to be used for changing the PP crystallization behavior, thereby changes its crystal habit, finally improves the auxiliary agent of its physical and mechanical properties and thermomechanical property.In recent years, for giving full play to the advantage of all kinds of nucleators, there is research to start to focus on the synergistic effect between the different nucleators of research or nucleator and other auxiliary agents.Hongwei Bai (Journal of Applied Polymer Science, Vol.111,1624-1637 (2009)) studied the composite rear impact on the crystalling propylene behavior of α nucleator (DMDBS) and two kinds of nucleators of beta nucleater (TMB-5), the nucleator of finding the different ratios proportioning can make polypropylene obtain these two kinds of Crystal types of different ratios, provides a kind of and has obtained the polyacrylic research method of different performance by changing nucleator kind and ratio.How preparing polypropylene nucleater cheap, excellent property is a direction of research.
Summary of the invention
For solving the problem occurred in prior art, the invention provides a kind of preparation method and nucleator prepared therefrom and application of binary composite polypropylene nucleator.Adopt the preparation method of the multiple grinding of inorganic nano-particle and organic nucleating agent to prepare polypropylene nucleater, there is consumption few, price is low, and preparation technology is simple, improve the advantage such as mechanical property, is a kind of mechanics properties-correcting agent of the desirable acrylic resin with synergistic effect.
One of purpose of the present invention is to provide a kind of preparation method of binary composite polypropylene nucleator.
Described method comprises:
Described nucleator is that inorganic nano-particle and organic nucleating agent mix by making after grinding;
Wherein the weight ratio of inorganic nano-particle and organic nucleating agent is 95: 5～5: 95;
Described inorganic nano-particle is attapulgite or silicon-dioxide;
The particle size range of described silicon-dioxide is between 5～100nm;
Described organic nucleating agent is 2,2 '-ylidene methyl-bis-(4,6-di-n-butyl phenol) sodium phosphate.
Specifically comprise following steps:
(1) inorganic nano-particle and organic nucleating agent are mixed in described ratio;
(2) inorganic nano-particle mixed and organic nucleating agent mixed powder add in grinding plant, adopt the method for grinding, and certain grinding rate and time are set, and reach and mix and grind the effect attenuated.Generally milling time is 5～30 minutes, grinding rate be 300～500rpm (rpm).
Concrete:
The inorganic nano-particle silica component contained in the polypropylene composite materials nucleator of inorganic nano-particle of the present invention can adopt silicon sol (mSiO
2nH
2o) spraying drying is prepared from, or commercial silicon dioxide granule.
Described silicon sol (mSiO
2nH
2o) be the stable suspension that silicon dioxide microparticle that particle size range is 10-20nm is dispersed in water formation.
Mix and blend equipment in the preparation method is the mixing equipment usually adopted in manufacture field, as: the high-shear dispersion machine; Spray drying device is also usually to adopt in this area, as: spray-drier.
The grinding plant of binary composite nucleating agent is the mixing equipment that manufacture field adopts usually, as: star lapping machine, mill, can add a small amount of distilled water, wet grinding; Also can directly mix rear grinding.
Two of purpose of the present invention is to provide a kind of binary composite polypropylene nucleator prepared by described method.
Described nucleator is comprised of inorganic nano-particle and organic nucleating agent, and the weight ratio of inorganic nano-particle and organic nucleating agent is 95: 5～5: 95, is preferably 75: 25～25: 75;
Described inorganic nano-particle is attapulgite or silicon-dioxide;
Wherein said attapulgite be in prior art without the various attapulgites of organic process, purity is more than 99%; Attapulgite is a kind of water magnesium alumino metasilicate salt clay mineral, and usually under state, attapulgite is that aggregate form with its a plurality of monocrystalline presents, and the nano crystal of bar-shaped or filamentary structure, diameter 10～20nm, length-to-diameter ratio is greater than 10;
The particle size range of described silicon-dioxide is between 5～100nm, is preferably between 5～50nm, and purity is more than 99% or use various silicon sol product of the prior art;
Described organic nucleating agent is 2,2 '-ylidene methyl-bis-(4,6-di-n-butyl phenol) sodium phosphate.
Three of purpose of the present invention is to provide the application of a kind of binary composite polypropylene nucleator in the preparation Reinforced Polypropylene.
The present invention adopts inorganic nano-particle and the composite method of organic nucleating agent to prepare a kind of composite polypropylene nucleator.When adopting Ginding process that two kinds of nucleators are mixed, it can also be ground tiny, thereby effectively enlarged the contact area of nucleator and polypropylene matrix; Difform inorganic nano-particle (attapulgite of needle-like or spherical silicon-dioxide) also plays certain nucleogenesis as inorganic nucleator simultaneously, and can play the effect of dispersion medium or the spacer of organic nucleating agent.In the situation that organic nucleating agent content is identical, composite nucleating agent has identical or better nucleating effect, and along with the raising mechanical property of addition can also further improve.Therefore, organic phosphate nucleating agent prepared by polishing and inorganic particulate are applied in polypropylene as composite nucleating agent, have a consumption few, effective, and the advantage such as tooling cost is low, and preparation technology is simple is a kind of mechanics properties-correcting agent of desirable acrylic resin.
The present invention has obtained having the composite nucleating agent of synergy, and the crystal property of material and mechanical property improve, and cost declines to a great extent simultaneously.
The accompanying drawing explanation
The polarizing microscope photo of Fig. 1 comparative example 10
The polarizing microscope photo of Fig. 2 embodiment 17
Embodiment
Below in conjunction with embodiment, further illustrate the present invention.
Embodiment 1:
Adopt NA11[2,2 '-ylidene methyl-bis-(4,6-di-n-butyl phenol) sodium phosphate] (in reach chemical industry company limited, trade mark NP-508) and attapulgite (Anhui Province Ming Mei Mineralka D. O. O. produces, trade mark 701A, aggregate for the attapulgite monocrystalline, the average fineness of aggregate is 425 orders=33 μ m, purity is more than 99%) the part by weight ratio combination that is 75/25, adopt high speed Universalpulverizer (Tianjin Stettlen Instrument Ltd., model FW100) powder is uniformly mixed, rotating speed 24000rpm (rpm), 5 seconds of mixing time; Then the powder mixed is put into to star lapping machine (Nanjing great Ran machinery company limited), by running up of star lapping machine, two kinds of nucleators in the agate tank are mixed fully and grind, grind 15 minutes, grinding rate 400rpm (rpm), obtain 1# binary composite nucleating agent.
Embodiment 2
Adopt NA11[2,2 '-ylidene methyl-bis-(4,6-di-n-butyl phenol) sodium phosphate] (in reach chemical industry company limited, trade mark NP-508), (by silicon sol, (chemical plant, Qingdao produces silicon-dioxide, trade mark ZA-25, SiO
2concentration 25wt%, between particle size range 10～20 nanometers, pH value about 7) adopt common spray-drying process to obtain SiO 2 powder, (Beijing North grinds petrochemical industry designing institute and produces the spray drying experiment device, model QP-3X) spraying in, the inlet temperature of spray-dryer is 150 ℃, temperature out is 60 ℃, collect and obtain dried silicon-dioxide in cyclonic separator), NA11 and SiO 2 powder are 75/25 mixing by weight, adopt high speed Universalpulverizer (Tianjin Stettlen Instrument Ltd., model FW100) powder is uniformly mixed, rotating speed 24000rpm (rpm), 5 seconds of mixing time, the powder mixed is put into star lapping machine (Nanjing great Ran machinery company limited), by running up of star lapping machine, two kinds of nucleators in the agate tank are mixed fully and grind, grind 5 minutes, grinding rate 500rpm, obtain 2# binary composite nucleating agent.
Embodiment 3
Adopt NA11[2,2 '-ylidene methyl-bis-(4,6-di-n-butyl phenol) sodium phosphate] (in reach chemical industry company limited, trade mark NP-508) and silicon-dioxide is (by silicon sol (production of chemical plant, Qingdao, trade mark ZA-25, SiO
2between concentration 25wt%, particle size range 10～20 nanometers, pH value about 7) adopt common spray-drying process to obtain same embodiment 2) the part by weight ratio combination that is 25/75, mix (with embodiment 2), mixed powder is put into star lapping machine (Nanjing great Ran machinery company limited), by running up of star lapping machine, two kinds of nucleators in the agate tank are mixed fully and grind, grind 20 minutes, grinding rate 300rpm (rpm), obtain 3# binary composite nucleating agent.
Embodiment 4
Adopt NA11[2,2 '-ylidene methyl-bis-(4,6-di-n-butyl phenol) sodium phosphate] (in reach chemical industry company limited, trade mark NP-508) and silicon-dioxide is (by silicon sol (production of chemical plant, Qingdao, trade mark ZA-25, SiO
2between concentration 25wt%, particle size range 10～20 nanometers, pH value about 7) adopt common spray-drying process to obtain same embodiment 2) the part by weight ratio combined hybrid (with embodiment 2) that is 50/50, mixed powder is put into star lapping machine (Nanjing great Ran machinery company limited), by running up of star lapping machine, two kinds of nucleators in the agate tank are mixed fully and grind, grind 10 minutes, grinding rate 500rpm (rpm), obtain 4# binary composite nucleating agent.
Embodiment 5:
Adopt NA11[2, 2 '-ylidene methyl-bis-(4, 6-di-n-butyl phenol) sodium phosphate] (in reach chemical industry company limited, trade mark NP-508) and attapulgite (Anhui Province Ming Mei Mineralka D. O. O. produces, trade mark 701A, aggregate for the attapulgite monocrystalline, the average fineness of aggregate is 425 orders=33 μ m, purity is more than 99%) the part by weight ratio combination that is 50/50, mix (with embodiment 2), mixed powder is put into star lapping machine (Nanjing great Ran machinery company limited), by running up of star lapping machine, two kinds of nucleators in the agate tank are mixed fully and grind, grind 10 minutes, grinding rate 500rpm (rpm), obtain 5# binary composite nucleating agent.
The proportioning of above each embodiment is in Table 1.
Table 1. is containing the polypropylene composite materials nucleator of inorganic nano-particle
Embodiment 6
By the 1# composite nucleating agent of preparation in embodiment 1 and (the Beijing Chemical Research Institute's production of copolymerization polypropylene powder, melt flow rate (MFR) 5.5g/10min), (Switzerland vapour Ba Jiaji produces antioxidant 1010 and 168, the two mixes and uses with 1/1 ratio) mix, it specifically forms: 100 parts of polypropylene, 0.1 part of composite powder (NA11/ attapulgite=75/25), antioxidant 1010/0.4 part, 168 mixture (wherein each component concentration is all in parts by weight), at high speed agitator (the special plastics machinery head factory of Beijing's English, model GH-10DY) in, mix one minute, ZSK-25 twin-screw extrusion system (length-to-diameter ratio 30: 1 with German Werner and Pleiderer company, diameter 25mm) blend granulation, each section temperature of forcing machine is respectively 180 ℃, 200 ℃, 200 ℃, 200 ℃, 200 ℃, 190 ℃ (head temperature), through injector, (ningbo of china Hai Tian company produces the gained pellet, model HTF110X/1J) injection moulding, injection temperature is 220 ℃, make sample standard batten.
Embodiment 7
0.1 part of 1# composite nucleating agent in embodiment 6 (NA11/ attapulgite=75/25) is changed to 0.13 part, and all the other each component ratios are all constant, and blend is even, all the other operations and extrude, injecting condition is all with embodiment 6.
Embodiment 8
0.1 part of 1# composite nucleating agent in embodiment 6 (NA11/ attapulgite=75/25) is changed to 0.2 part, and all the other each component ratios are all constant, and blend is even, all the other operations and extrude, injecting condition is all with embodiment 6.
Embodiment 9
0.1 part of 1# composite powder in embodiment 6 (NA11/ attapulgite=75/25) is changed to 0.4 part, and all the other each component ratios are all constant, and blend is even, all the other operations and extrude, injecting condition is all with embodiment 6.
Embodiment 10
1# composite nucleating agent in embodiment 6 (NA11/ attapulgite=75/25) is changed to 2# composite nucleating agent (NA11/SiO
2=75/25), all the other each component ratios are all constant, and blend is even, all the other operations and extrude, injecting condition is all with embodiment 6.
Embodiment 11
1# composite nucleating agent in embodiment 6 (NA11/ attapulgite=75/25) is changed to 3# composite nucleating agent (NA11/SiO
2=25/75), all the other each component ratios are all constant, and blend is even, all the other operations and extrude, injecting condition is all with embodiment 6.
Embodiment 12
1# composite nucleating agent in embodiment 6 (NA11/ attapulgite=75/25) is changed to 4# composite powder (NA11/SiO
2=50/50), all the other each component ratios are all constant, and blend is even, all the other operations and extrude, injecting condition is all with embodiment 6.
Embodiment 13
By the 4# composite nucleating agent (NA11/SiO in embodiment 12
2=50/50) 0.1 part changes to 0.2 part, and all the other each component ratios are all constant, and blend is even, all the other operations and extrude, injecting condition is all with embodiment 12.
Embodiment 14
By the 4# composite nucleating agent (NA11/SiO in embodiment 12
2=50/50) 0.1 part changes to 0.4 part, and all the other each component ratios are all constant, and blend is even, all the other operations and extrude, injecting condition is all with embodiment 12.
Comparative example 1
By 100 parts of Co-polypropylene powders and 0.4 part of direct mix of oxidation inhibitor, all the other operations and extrude, injecting condition is all with embodiment 6.
Comparative example 2
By 100 parts of Co-polypropylene powders, 0.05 part of NA11 nucleator, 0.4 part of mix of oxidation inhibitor, all the other operations and extrude, injecting condition is all with embodiment 6.
Comparative example 3
By 100 parts of Co-polypropylene powders, 0.1 part of NA11 nucleator, 0.4 part of mix of oxidation inhibitor, all the other operations and extrude, injecting condition is all with embodiment 6.
Comparative example 4
By 100 parts of Co-polypropylene powders, 0.2 part of NA11 nucleator, 0.4 part of mix of oxidation inhibitor, all the other operations and extrude, injecting condition is all with embodiment 6.
Comparative example 5
By 100 parts of Co-polypropylene powders, 0.4 part of NA11 nucleator, 0.4 part of mix of oxidation inhibitor, all the other operations and extrude, injecting condition is all with embodiment 6.
Comparative example 6
By NA11[2,2 '-ylidene methyl-bis-(4,6-di-n-butyl phenol) sodium phosphate] (in reach chemical industry company limited, trade mark NP-508) and attapulgite (Anhui Province Ming Mei Mineralka D. O. O. produces, trade mark 701A, aggregate for the attapulgite monocrystalline, the average fineness of aggregate is 425 orders=33 μ m, purity is more than 99%) the part by weight ratio combination that is 75/25, adopt high speed Universalpulverizer (Tianjin Stettlen Instrument Ltd., model FW100) powder is uniformly mixed, rotating speed 24000rpm (rpm), 5 seconds of mixing time; By 0.13 part of the nucleator of above-mentioned mixing (wherein 0.0975 part of NA11 nucleator, 0.0325 part of attapulgite) and 100 parts of copolymerization polypropylene powders, 0.4 part of mix of oxidation inhibitor, all the other operations and extrude, injecting condition is all with embodiment 6.
In above comparative example, oxidation inhibitor used is all with embodiment 6.
Embodiment 15
5# composite nucleating agent and homo-polypropylene powder (Tianjin blue star chemical inc by preparation in embodiment 5, melt flow rate (MFR) 3～5g/10min), (Switzerland vapour Ba Jiaji produces antioxidant 1010 and 168, the two mixes and uses with 1/1 ratio) mix, it specifically forms: 100 parts of polypropylene, 0.1 part of composite powder (NA11/ attapulgite=50/50), antioxidant 1010/0.4 part, 168 mixture (wherein each component concentration is all in parts by weight), at high speed agitator (the special plastics machinery head factory of Beijing's English, model GH-10DY) in, mix one minute, ZSK-25 twin-screw extrusion system (length-to-diameter ratio 30: 1 with German Werner and Pleiderer company, diameter 25mm) blend granulation, each section temperature of forcing machine is respectively 180 ℃, 200 ℃, 200 ℃, 200 ℃, 200 ℃, 190 ℃ (head temperature), through injector, (ningbo of china Hai Tian company produces the gained pellet, model HTF110X/1J) injection moulding, injection temperature is 220 ℃, make sample standard batten.
Embodiment 16
By 0.1 part more 0.2 part of the 5# composite nucleating agent in embodiment 15 (NA11/ attapulgite=50/50), all the other each component ratios are all constant, and blend is even, all the other operations and extrude, injecting condition is all with embodiment 15.
Embodiment 17
By 0.1 part more 0.4 part of the 5# composite nucleating agent in embodiment 15 (NA11/ attapulgite=50/50), all the other each component ratios are all constant, and blend is even, all the other operations and extrude, injecting condition is all with embodiment 15.
Embodiment 18
By 0.1 part more 0.8 part of the 5# composite nucleating agent in embodiment 15 (NA11/ attapulgite=50/50), all the other each component ratios are all constant, and blend is even, all the other operations and extrude, injecting condition is all with embodiment 15.
Embodiment 19
By 0.1 part of the 5# composite nucleating agent in embodiment 15 (NA11/ attapulgite=50/50), 0.13 part of 1# composite nucleating agent (NA11/ attapulgite=75/25) more, all the other each component ratios are all constant, blend is even, all the other operations and extrude, injecting condition is all with embodiment 15.
Comparative example 7
By 100 parts of homo-polypropylene powders and 0.4 part of direct mix of oxidation inhibitor, all the other operations and extrude, injecting condition is all with embodiment 15.
Comparative example 8
By 100 parts of homo-polypropylene powders, 0.05 part of NA11 nucleator, 0.4 part of mix of oxidation inhibitor, all the other operations and extrude, injecting condition is all with embodiment 15.
Comparative example 9
By 100 parts of homo-polypropylene powders, 0.1 part of NA11 nucleator, 0.4 part of mix of oxidation inhibitor, all the other operations and extrude, injecting condition is all with embodiment 15.
Comparative example 10
By 100 parts of homo-polypropylene powders, 0.2 part of NA11 nucleator, 0.4 part of mix of oxidation inhibitor, all the other operations and extrude, injecting condition is all with embodiment 15.
Comparative example 11
By 100 parts of homo-polypropylene powders, 0.4 part of NA11 nucleator, 0.4 part of mix of oxidation inhibitor, all the other operations and extrude, injecting condition is all with embodiment 15.
Comparative example 12
By 100 parts of homo-polypropylene powders, 0.8 part of NA11 nucleator, 0.4 part of mix of oxidation inhibitor, all the other operations and extrude, injecting condition is all with embodiment 15.
Comparative example 13
By NA11[2,2 '-ylidene methyl-bis-(4,6-di-n-butyl phenol) sodium phosphate] (in reach chemical industry company limited, trade mark NP-508) and attapulgite (Anhui Province Ming Mei Mineralka D. O. O. produces, trade mark 701A, aggregate for the attapulgite monocrystalline, the average fineness of aggregate is 425 orders=33 μ m, purity is more than 99%) the part by weight ratio combination that is 75/25, adopt high speed Universalpulverizer (Tianjin Stettlen Instrument Ltd., model FW100) powder is uniformly mixed, rotating speed 24000rpm (rpm), 5 seconds of mixing time; By 0.13 part of the nucleator of above-mentioned mixing (wherein 0.0975 part of NA11 nucleator, 0.0325 part of attapulgite) and 100 parts of homo-polypropylene powders, 0.4 part of mix of oxidation inhibitor, all the other operations and extrude, injecting condition is all with embodiment 15.
Test:
The standard batten respectively embodiment 6～19 and comparative example 1～13 injection moulding obtained carries out the bending property test by the ISO178 testing standard, carry out the tensile property test by the ISO527 testing standard, carry out the heat-drawn wire test by the ISO75-2:2004 testing standard, what obtain the results are shown in table 2.
Table 2 test recipe and performance table
As shown in table 2, the composite nucleating agent ratio after employing organic nucleating agent and inorganic nucleator blend are ground directly adds the crystalling propylene performance after organic nucleating agent that more obvious raising is arranged, and mechanical property is also improved more.For example add the embodiment 6 of the 0.1 part of recessed soil of NA11/=75/25 composite nucleating agent, Tc is higher 2 ℃ than the comparative example 3 that adds 0.1 part of NA11, and stress in bending and modulus in flexure all improve 6%.The embodiment 12 that adds the NA11/SiO2=50/50 of 0.1 part, all relatively example 3 is good for Tc and bending property.After the content of nucleator increases, the composite nucleating agent that adopts polishing to prepare can reach the effect of same amount organic nucleating agent, illustrates that the composite nucleating agent that adopts polishing to prepare can be identical with the organic nucleating agent effect of same amount even better.
Simultaneously, the organic nucleating agent that the data declaration of table 2 adopts the blend Ginding process to prepare improves more obvious with the composite nucleating agent of inorganic nucleator than the over-all properties that directly adds two kinds of Nucleating Agent on Pps.For example embodiment 7 compares with comparative example 6, the Tc of material, and tensile strength, modulus in flexure is improved, and heat-drawn wire has improved 4 ℃.Embodiment 19 compares with comparative example 13, also can find to adopt composite nucleating agent after blend is ground can improve better crystal property and the mechanical property of material.Illustrate that polishing makes the compound of nucleator and its dispersion in polypropylene reach better effect really.
Fig. 1 is the polarizing microscope photo of comparative example 10, has wherein added 0.2 part of NA11, and Fig. 2 is at the polypropylene that has added the 5# composite powder of 0.4 part (embodiment 17) polarisation photo, wherein comprises the NA11 of 0.2 part and the attapulgite of 0.2 part.From microphotograph, can find out, add the attapulgite of 0.2 part on the NA11 basis of 0.2 part of content, the grain density in whole visual field obviously improves again, and can reach the dispersed level of organic nucleating agent.
Therefore, composite nucleating agent, by the method for grinding, can produce synergistic effect, makes originally to be difficult to homodisperse inorganic powder dispersed in matrix, thereby reaches better nucleating effect.Composite nucleating agent prepared by this polishing can produce synergistic effect, thereby play good nucleogenesis, improves material property, and adopts the inorganic nucleator energy cost-saving.Therefore, to prepare the method for composite nucleating agent be a kind of desirable nucleator preparation method to polishing of the present invention.
Claims (6)
1. the preparation method of a binary composite polypropylene nucleator is characterized in that described method comprises:
Described nucleator is that inorganic nano-particle and organic nucleating agent mix by making after grinding;
Wherein the weight ratio of inorganic nano-particle and organic nucleating agent is 95: 5～5: 95;
Described inorganic nano-particle is attapulgite or silicon-dioxide;
The particle size range of described silicon-dioxide is between 5～100nm;
Described organic nucleating agent is 2,2 '-ylidene methyl-bis-(4,6-di-n-butyl phenol) sodium phosphate.
2. preparation method as claimed in claim 1 is characterized in that:
Described milling time is 5～30 minutes, and grinding rate is 300～500rpm.
3. the binary composite polypropylene nucleator that prepared by method as claimed in claim 1 or 2 is characterized in that:
Described nucleator is comprised of inorganic nano-particle and organic nucleating agent;
Wherein the weight ratio of inorganic nano-particle and organic nucleating agent is 95: 5～5: 95;
Described inorganic nano-particle is attapulgite or silicon-dioxide;
The particle size range of described silicon-dioxide is between 5～100nm;
Described organic nucleating agent is 2,2 '-ylidene methyl-bis-(4,6-di-n-butyl phenol) sodium phosphate.
4. binary composite polypropylene nucleator as claimed in claim 3 is characterized in that:
The weight ratio of described inorganic nano-particle and organic nucleating agent is 75: 25～25: 75.
5. binary composite polypropylene nucleator as claimed in claim 3 is characterized in that:
The particle size range of described silicon-dioxide is between 5～50nm.
6. the application of binary composite polypropylene nucleator as described as one of claim 3～5 in the preparation Reinforced Polypropylene.
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| CN106916369A (en) * | 2015-12-24 | 2017-07-04 | 中国石油天然气股份有限公司 | A kind of preparation method of high-crystallinity polypropylene PP Pipe Compound |
| CN105733092A (en) * | 2016-03-09 | 2016-07-06 | 贵州省材料产业技术研究院 | Binary composite transparent polypropylene nucleating agent |
| CN105733092B (en) * | 2016-03-09 | 2018-05-15 | 贵州省材料产业技术研究院 | A kind of binary composite transparent polypropylene nucleater |
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| CN103087405B (en) | 2016-04-27 |
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