CN106750987A - A kind of modified poly propylene composition - Google Patents

A kind of modified poly propylene composition Download PDF

Info

Publication number
CN106750987A
CN106750987A CN201610254693.6A CN201610254693A CN106750987A CN 106750987 A CN106750987 A CN 106750987A CN 201610254693 A CN201610254693 A CN 201610254693A CN 106750987 A CN106750987 A CN 106750987A
Authority
CN
China
Prior art keywords
modified poly
poly propylene
propylene composition
composition according
toughener
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610254693.6A
Other languages
Chinese (zh)
Inventor
邹明瑞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Foshan Ruijian Sports Equipment Co Ltd
Original Assignee
Foshan Ruijian Sports Equipment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Foshan Ruijian Sports Equipment Co Ltd filed Critical Foshan Ruijian Sports Equipment Co Ltd
Priority to CN201610254693.6A priority Critical patent/CN106750987A/en
Publication of CN106750987A publication Critical patent/CN106750987A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • C08L23/14—Copolymers of propene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/002—Physical properties
    • C08K2201/003—Additives being defined by their diameter
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/08—Stabilised against heat, light or radiation or oxydation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The present invention relates to a kind of modified poly propylene composition and preparation method thereof, belong to technical field of polymer materials.Described polypropene composition is made up of the raw material of following mass fraction：Acrylic resin 45 ~ 80；Inorganic particle 15 ~ 25；Metallocene linear-low density polyethylene 5 ~ 30；Toughener 1 ~ 5 and weather-proof auxiliary agent 0.05 ~ 0.3.The present invention is the resin based on impact copolymer polypropylene, by adding inorganic particle, metallocene linear-low density polyethylene and toughener, through double screw extruder extruding pelletization, obtain the modified poly propylene composition with low-shrinkage, with low cost, low-shrinkage, excellent rigidity-toughness balanced performance, luster performance higher and good processing flowability and preparation method is simple and easy to apply, it is easy to operate.

Description

A kind of modified poly propylene composition
Technical field
The invention belongs to technical field of polymer materials, and in particular to a kind of modified poly propylene composition.
Background technology
Polypropylene (PP) is one of kind of large usage quantity in five big synthetic resin, with density is small, good mechanical property, resistance to It is nontoxic in chemicals and good insulating, process, the features such as easily reclaim, have been widely used for automobile, household electrical appliances, packaging, The fields such as commodity, chemical industry, building and chemical fibre, but PP there is also the shortcomings of low-temperature flexibility is poor, molding shrinkage is big.Automobile, The field such as household electrical appliances polypropylene is all used by modified, with the abundant and polypropylene modification skill of acrylic resin kind The raising of art, the application field of modified polypropylene material is just incrementally increased, and the engineering of modified polypropylene material has turned into modified Research in plastic industry and apply focus.
Injection-molded item inprocess shrinkage is one of key factor of influence product quality problem.At present, in most cases change Property polypropylene material be still to produce Injection moulded part on using the existing low-shrinkage mould suitable for engineering plastics, if modified The molding shrinkage of polypropylene material is big, just occurs that the moulding obtained using modified polypropylene material is not inconsistent with matching requirements Problem, this be restrict modified polypropylene material engineering topmost problem.It is used to manufacture continuously especially for those Gap, the car bumper of assembling quality requirement high, instrument board, auxiliary fasia console, instrument lid and other assembling precisions and assembling Small part of dimensional tolerance etc., the control of molding shrinkage seems just particularly important.Influenceing the factor of shrinkage factor has many, including The species of plastics（The structure of plastics itself in other words）, mould structure, the gate location of mould and molding technological condition etc..Its In, from for material angle, the structure of plastics itself is main influence factor.
Polypropylene belongs to semicrystalline resin, and its molding shrinkage is generally 1.4-2.6%, with acrylonitrile-butadiene-benzene Ethylene-dien terpolymer（ABS）, polystyrene（PS）, makrolon（PC）Deng amorphous materials（Molding shrinkage is 0.4- 0.8%）Compared to much greater.Molding shrinkage herein refers to material after moulding between injection-molded item and mold cavity Size difference.It is larger that the control of polyacrylic shrinkage factor is applied to range effects, and modified poly- third is used in some application fields The plastics such as alkene material substitution ABS, PC, in addition to requiring modified polypropylene material and possessing impact property higher and rigidity, will also Ask with relatively low molding shrinkage, while processing fluidity and lustrous surface performance will also meet requirement.
Polyacrylic shrinkage factor is controlled and adjusted, current common practice is to add inorganic matter to change PP Crystallization behavior reduces the molding shrinkage purpose of material so as to reach, from mechanical performance for, the addition of inorganic matter can be obvious Raising material modulus（Rigidity）, but inorganic matter addition will excessively substantially reduce the impact property of material（Toughness）, And the method for making up is while adding the toughener for improving toughness of material, such as ethylene propylene diene rubber（EPDM）Or polyolefin elastomer （POE）Deng, and this kind of toughener can also reduce the shrinkage factor of material to a certain extent, but due to rubber or elastomer market Price is far above acrylic resin, and the addition of excessive rubber or elastomer can greatly increase material modified cost, while to material The processing characteristics of material also brings detrimental effect.
According to current technology level, by one-component, it is difficult to accomplish significantly to control or reduce polyacrylic Shrinkage factor, even if it is also premised on sacrificing other performances to have reached.Document CN200510029555.X and CN200710047775.4 and pertinent literature (Zhou Yinghui etc., the development of ultralow shrinkage factor modified polypropene, Shanghai golden hair science and technology Development Co., Ltd) in, the product Hifax7271A of the Basell companies for mentioning is stated to be the acrylic resin of low-shrinkage, It is 0.56-0.6% that its shrinkage factor is relatively low, but its modulus is relatively low, and exclusive use has no too big value.Hifax7271A is used as modified Agent is added in PP/ Talcs, can effectively reduce the shrinkage factor of modified polypropylene material, addition in 30%-40%, Shrinkage factor can be down to 0.40-0.47%.But because the market price of Hifax 7271A is per ton higher than the polypropylene price of the same period Go out more than 10,000 yuan, and relative addition is higher, it is necessary to used with other elastomers POE collaborations, therefore this kind of material is modified It is relatively costly.
The content of the invention
It is an object of the invention to provide a kind of modified poly propylene composition, with low cost, low-shrinkage, excellent strong and unyielding Balance quality, luster performance higher and good processing flowability.
Modified poly propylene composition of the present invention, is made up of the raw material of following mass fraction：
Acrylic resin 45 ~ 80
Inorganic particle 15 ~ 25
Metallocene linear-low density polyethylene 5 ~ 30
Toughener 1 ~ 5
Weather-proof auxiliary agent 0.05 ~ 0.3
Described inorganic particle be talcum powder, calcium carbonate, mica or kaolin in one or more, preferable particle size be 5 ~ 10 μm of talcum powder, wherein talcum powder do Conventional activation and process using titante coupling agent.Talcum powder can individually add or Talc powder master batch is prepared into use.Preferably added in talc powder master batch form herein, the quality percentage of talcum powder in the masterbatch Content is 60%, and vector resin is middle flowing superelevation impact copolymer polypropylene, and preferably Sinopec asphalt in Shenli Refinery produces SP179.The effect of talcum powder is the rigidity and heat resistance for improving PP composite material, while reducing molding shrinkage.
Described metallocene linear-low density polyethylene melt mass flow rate（MFR2.16）It is 1 ~ 30 g/10min, it is close It is 0.912 ~ 0.930g/cm to spend3, molecular weight distribution Mw/MnBetween 2 ~ 3.Metallocene linear-low density polyethylene (mLLDPE), It is ethene and a small amount of high alpha-olefin（Such as 1- butylene, 1- hexenes, 1- octenes, tetramethyl -1- amylenes）In metallocene catalyst Produced on gas-phase process device under effect.The preferred 1- hexenes of its comonomer.Its effect is to reduce polypropylene composite materials material The molding shrinkage of material, while improving the impact property of material.It has been found that typical catalyst in project research process（Together Ge Le-Natta catalyst）LLDPE products (2.0 g/10min, 0.920g/cm of production3) and mLLDPE (24 g/ 10min, 0.920g/cm3) compare, with the impact for improving material in terms of the molding shrinkage of PP composite material is reduced The effect of going up is not obvious, therefore mLLDPE is selected in the present invention as the modified polypropene for reducing shrinkage factor with improve impact flexibility Component, the present invention preferably metallocene linear-low density polyethylene mPE-200904 is the production of sinopec asphalt in Shenli Refinery.
Described toughener is in EPDM or POE, preferably POE, POE are the ethylenic copolymer of ethene and octene, copolymerization Monomer octene weight/mass percentage composition >=30%.The effect of POE is the impact property for improving material, and the shaping that can also reduce material is received Shrinkage, while playing synergy with metallocene linear-low density polyethylene.The preferred trades mark of POE of the present invention are DOW chemical companies The Engage8402 of production, in practical application, selecting appropriate addition according to cost, its consumption is less.
Described weather-proof auxiliary agent is light stabilizer or/and ultra-violet absorber, and light stabilizer is hindered amines HALS, referred to as The TINUV770 of HALS, preferably Ciba；Ultra-violet absorber is benzotriazole, preferably the TINUV571 of Ciba.
Beneficial effects of the present invention are as follows：
The present invention is the resin based on impact copolymer polypropylene, by adding inorganic particle, the poly- second of metallocene linear low density Alkene and toughener, through double screw extruder extruding pelletization, obtain modified poly propylene composition, with low cost, low-shrinkage, excellent Different rigidity-toughness balanced performance, luster performance higher and good processing flowability, its preparation method are simple and easy to apply, it is easy to grasp Make.
Specific embodiment
The present invention is described further with reference to embodiments.
Talcum powder is added in talc powder master batch form in embodiment, and the weight/mass percentage composition of talcum powder is 60%, carrier in the masterbatch Resin is middle flowing impact copolymer polypropylene, preferably the QP83N of Sinopec asphalt in Shenli Refinery production.
Embodiment 1 ~ 5
The each component formula of embodiment 1 ~ 5 is shown in Table 1, and performance indications are shown in Table 2.
Embodiment 6 ~ 10
The each component formula of embodiment 6 ~ 10 is shown in Table 3, and performance indications are shown in Table 4.
Comparative example 1
The each component formula of comparative example 1 is shown in Table 1, and performance indications are shown in Table 2.
Comparative example 2
The each component formula of comparative example 2 is shown in Table 3, and performance indications are shown in Table 4.
The each group distribution ratio table of the embodiment 1 ~ 5 of table 1 and comparative example 1（In terms of mass fraction）
Each component title Embodiment 1 Embodiment 2 Embodiment 3 Embodiment 4 Embodiment 5 Comparative example 1
Impact polypropylene resin (QP83N) 70 65 55 50 28 55
Impact polypropylene resin (SP179) 7 10 13 13 20 13
Talcum powder 15 15 - 20 25 20
Calcium carbonate - - 20 - - -
mLLDPE（mPE-200904） 5 7 9 14 30 0
Toughener Engage8402 5 3 3 3 1 12
Ultra-violet absorber（TINUV571） 0.1 0.1 0.1 0.1 0.1 0.1
The key property tables of data of the embodiment 1 ~ 5 of table 2 and comparative example 1
Test event Unit Embodiment 1 Embodiment 2 Embodiment 3 Embodiment 4 Embodiment 5 Comparative example 1
MFR g/10min 10.6 10.7 10.5 10.4 11.1 10.0
Stretching yield stress MPa 20.5 20.1 19.2 19.0 18.2 18.7
Elongation at break % 410 430 180 290 380 134
Bending strength MPa 25.1 25.3 27.2 27.5 26.8 25.8
The modulus of elasticity in static bending MPa 1290 1420 1260 1820 1765 1634
23 DEG C of Izod notched impact strength kJ/m2 42.3 41.4 32.1 40.1 40.5 37.5
Parallel direction shrinkage factor % 0.85 0.83 0.89 0.73 0.68 0.84
Vertical direction shrinkage factor % 0.83 0.82 0.87 0.72 0.65 0.83
Glossiness, 60 ° - 71 73 68 74 76 58
The each group distribution ratio table of the embodiment 6 ~ 10 of table 3 and comparative example 2（In terms of mass fraction）
Each component title Embodiment 6 Embodiment 7 Embodiment 8 Embodiment 9 Embodiment 10 Comparative example 2
Impact polypropylene resin (QP81N) 70 65 55 51 28 40
Impact polypropylene resin (SP179) 7 10 13 13 20 20
Talcum powder 10 15 - 20 30 30
Calcium carbonate - - 20 - - -
mLLDPE（mPE-200904） 4 8 10 14 31 0
Toughener Engage8402 5 2 2 2 1 10
Ultra-violet absorber（TINUV571) 0.1 0.1 0.1 0.1 0.1 0.1
The key property tables of data of the embodiment 6 ~ 10 of table 4 and comparative example 2
Test event Unit Embodiment 6 Embodiment 7 Embodiment 8 Embodiment 9 Embodiment 10 Comparative example 2
MFR g/10min 24.5 22.4 18.7 20.0 17.5 16.3
Stretching yield stress MPa 19.1 18.1 17.9 18.7 18.3 15.3
Elongation at break % 180 230 200 176 176 118
Bending strength MPa 25.0 24.2 25.4 26.0 26.0 23.4
The modulus of elasticity in static bending MPa 1200 1283 1530 1850 1970 1620
23 DEG C of Izod notched impact strength kJ/m2 36.0 42.4 33.0 38.1 41.0 34.5
Parallel direction shrinkage factor % 0.86 0.81 0.88 0.67 0.65 0.82
Vertical direction shrinkage factor % 0.85 0.81 0.89 0.66 0.63 0.82
Glossiness, 60 ° - 68 72 66 73 75 62

Claims (8)

1. a kind of modified poly propylene composition, it is characterised in that be made up of the raw material of following mass fraction：
Acrylic resin 45 ~ 80
Inorganic particle 15 ~ 25
Metallocene linear-low density polyethylene 5 ~ 30
Toughener 1 ~ 5
Weather-proof auxiliary agent 0.05 ~ 0.3.
2. modified poly propylene composition according to claim 1, it is characterised in that described inorganic particle is talcum powder, carbon One or more in sour calcium, mica or kaolin.
3. modified poly propylene composition according to claim 1 and 2, it is characterised in that described inorganic particle is talcum Powder, particle diameter is 5 ~ 10 μm, using titante coupling agent activation process.
4. modified poly propylene composition according to claim 1, it is characterised in that described metallocene linear low density gathers Ethene melt mass flow rate is 1 ~ 30g/10min, and density is 0.912 ~ 0.930g/cm3, molecular weight distribution Mw/Mn2 ~ 3 Between.
5. modified poly propylene composition according to claim 1, it is characterised in that described toughener is EPDM or POE.
6. modified poly propylene composition according to claim 5, it is characterised in that described toughener is POE, copolymerization list Body octene weight/mass percentage composition >=30%.
7. modified poly propylene composition according to claim 1, it is characterised in that described weather-proof auxiliary agent is light stabilizer Or/and ultra-violet absorber, described light stabilizer is hindered amines HALS.
8. modified poly propylene composition according to claim 7, it is characterised in that described ultra-violet absorber is benzo Triazole type.
CN201610254693.6A 2016-04-23 2016-04-23 A kind of modified poly propylene composition Pending CN106750987A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610254693.6A CN106750987A (en) 2016-04-23 2016-04-23 A kind of modified poly propylene composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610254693.6A CN106750987A (en) 2016-04-23 2016-04-23 A kind of modified poly propylene composition

Publications (1)

Publication Number Publication Date
CN106750987A true CN106750987A (en) 2017-05-31

Family

ID=58972185

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610254693.6A Pending CN106750987A (en) 2016-04-23 2016-04-23 A kind of modified poly propylene composition

Country Status (1)

Country Link
CN (1) CN106750987A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107603009A (en) * 2017-08-31 2018-01-19 东莞市欧之可环保包装科技有限公司 A kind of strap production technology
CN109456538A (en) * 2018-10-12 2019-03-12 万华化学集团股份有限公司 A kind of low-density, low-shrinkage, PP composite material of argentine texture and preparation method thereof
CN109942961A (en) * 2019-02-27 2019-06-28 王德秀 A kind of method of pair of copolymer polypropylene performance enhancement
CN114163723A (en) * 2021-11-11 2022-03-11 金发科技股份有限公司 Polypropylene composition and preparation method and application thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102952342A (en) * 2011-08-30 2013-03-06 中国石油化工股份有限公司 Low-shrinkage polypropylene composition and preparation method thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102952342A (en) * 2011-08-30 2013-03-06 中国石油化工股份有限公司 Low-shrinkage polypropylene composition and preparation method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107603009A (en) * 2017-08-31 2018-01-19 东莞市欧之可环保包装科技有限公司 A kind of strap production technology
CN109456538A (en) * 2018-10-12 2019-03-12 万华化学集团股份有限公司 A kind of low-density, low-shrinkage, PP composite material of argentine texture and preparation method thereof
CN109942961A (en) * 2019-02-27 2019-06-28 王德秀 A kind of method of pair of copolymer polypropylene performance enhancement
CN114163723A (en) * 2021-11-11 2022-03-11 金发科技股份有限公司 Polypropylene composition and preparation method and application thereof

Similar Documents

Publication Publication Date Title
CN102952342A (en) Low-shrinkage polypropylene composition and preparation method thereof
CN101092496B (en) High glazed, shock proof filled and modified polypropylene, preparation and application
CN1840576B (en) High-performance low-odour polypropylene dedicated for automobile dashboard and method for preparing same
CN101058655B (en) Stress blanching and stress crack resistant filling modified polypropylene, preparation method and application
CN103254498A (en) Low-gloss polypropylene composition material
CN106750987A (en) A kind of modified poly propylene composition
CN103113680A (en) Low-gloss polyolefin elastomer composite material and preparation method thereof
CN102532774B (en) A kind of low-luster polypropylene composite material and preparation method thereof
CN104629184B (en) A kind of composite containing polybutene alloy and preparation method thereof
CN104558834A (en) Injection molding-grade high-performance polypropylene composite material with good appearance and preparation method of injection molding-grade high-performance polypropylene composite material
CN113388207B (en) High-gloss scratch-resistant easy-spraying polypropylene composite material and preparation method and application thereof
CN110982181A (en) Polypropylene composite material and preparation method and application thereof
CN101296986A (en) Molding-compositions composed of filler-reinforced thermoplastic material with very good scratch resistance and soft-touch feel
CN103834102A (en) Blown polypropylene with high melt strength, and preparation method and application thereof
CN107216545A (en) A kind of dynamic crosslinking PP/PE intermingling materials for characteristic of turning white with low-density high-impact proof stress and preparation method thereof
CN110437549A (en) A kind of peroxide cure thermoplastic elastic material and preparation method thereof
CN104558818B (en) Polypropene composition of dimensionally stable and preparation method thereof
CN105385088A (en) Polypropylene composition and preparation method thereof
CN104559007A (en) High-glossiness scratch-resistant polypropylene material and preparation method thereof
CN112608552A (en) Polypropylene composite material with high glossiness and good low-temperature toughness and preparation method thereof
CN102206377B (en) High gloss formable polypropylene composite material and preparation method thereof
CN1927932A (en) Modified polypropylene, preparing process and application thereof
CN112500675A (en) High-strength, light-weight and scratch-resistant polypropylene composite material and preparation method thereof
CN105273301A (en) Low-shrinkage polypropylene composite material and preparation method thereof
CN105273305A (en) Preparation method of toughening polypropylene composition

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20170531

WD01 Invention patent application deemed withdrawn after publication