CN104448558A - Highly-toughened light-diffusion PP composition and preparation method thereof - Google Patents
Highly-toughened light-diffusion PP composition and preparation method thereof Download PDFInfo
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- CN104448558A CN104448558A CN201410699085.7A CN201410699085A CN104448558A CN 104448558 A CN104448558 A CN 104448558A CN 201410699085 A CN201410699085 A CN 201410699085A CN 104448558 A CN104448558 A CN 104448558A
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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
- C08L23/12—Polypropene
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/24—Crystallisation aids
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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
- C08L2314/00—Polymer mixtures characterised by way of preparation
- C08L2314/06—Metallocene or single site catalysts
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
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- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a highly-toughened light-diffusion PP composition and a preparation method thereof. The composition is mainly prepared from homo-polymerized polypropylene, co-polymerized polypropylene, a polyolefin elastomer, a light diffusant, a nucleating agent and an antioxidant. The highly-toughened light-diffusion PP composition has good light diffusivity and is higher than a simple PP in impact strength.
Description
Technical field
The present invention relates to technical field of polymer materials, be specifically related to a kind of high toughness reinforcing light diffusion PP composition and method of making the same.
Background technology
Photodiffusion material refers to the material that a line source can be changed into line area source, the general light of interpolation in the base diffusate, light diffusate is spherical in shape, dispersed formation " sea-island structure " afterwards in the base, matrix is different from the refraction coefficient of light diffusate, so light diffusate surface just can reflect light as minute surface, namely matrix is made to reach light diffusion effect through luminous reflectance repeatedly.
Photodiffusion material on market is matrix mainly with PC, PMMA etc. greatly, but price is relatively high.For the finished product problem of the materials such as light diffusion PC, homopolymerization type PP (polypropylene) can be selected as matrix.All there is very regular arrangement α, β, γ position on the molecular chain of homopolymerization type PP, and methyl groups is all in the same side of polymer backbone, and regular this structure of molecular chain makes its as easy as rolling off a log formation crystal form.And the crystallinity of this isotactic form gives its good solvent resistant and heat resistanceheat resistant performance.In addition, the crystal form of homopolymerization type PP determines its good transparency, simple in conjunction with PP machine-shaping, the advantage of low production cost, has great advantage to the problem solving photodiffusion material cost higher.
But simple PP and light diffusing agent spread by the light of blended preparation the defect that PP material exists toughness deficiency, more difficultly meet some products higher to toughness reguirements, limit the Application Areas of light diffusion PP material to a great extent.So the present invention, by improving the situation of existing light diffusion PP toughness of material deficiency, meets the requirement to light diffusion PP material on market.
Summary of the invention
The object of the invention is to according to above shortcomings in prior art, a kind of high toughness reinforcing light diffusion PP composition and method of making the same is provided.
Above-mentioned purpose of the present invention is achieved by the following technical programs:
A kind of high toughness reinforcing light diffusion PP (polypropylene) composition, described composition is made up of the following component according to mass percentage: copolymerized type propene polymer 0-15%, polyolefin elastomer 3-10%, light diffusing agent 0.5-1.2%, nucleator 0.1-0.5%, oxidation inhibitor 0.2-0.5% and other auxiliary agent 0.3-5%, homopolymerization type polypropylene surplus; Each component is put into twin screw extruder extruding pelletization and be get final product mix 1 ~ 2 minute in high speed mixer after.
Wherein, homopolymerization type polypropylene is single propylene monomer polymkeric substance, and its melting index is at 10-12g/10min, and its number-average molecular weight at 8-15 ten thousand, and dries 2 hours control moisture below 0.1% at 90 DEG C; Copolymerized type propene polymer is ethene and propylene-based block copolymer, and ethylene content is generally 5% ~ 20% (quality), and its melting index is at 4-6g/10min, and its number-average molecular weight at 3-10 ten thousand, and dries 2 hours control moisture below 0.1% at 90 DEG C.
Described polyolefin elastomer be metallocene catalysis, ethene and octene realize the thermoplastic elastomer of in-situ polymerization, and dry at 90 DEG C and within 4 hours, control moisture below 0.1%; Light diffusing agent is a kind of acrylic resin of nucleocapsid structure, for white powder thing, add in the resin of unlike material, can disperse uniformly in the base with a kind of trickle transparent glass spheroid, by the difference of the specific refractory power with different substrate materials, the carrying out of light source penetration reflects, and changes the course of light, reaches the object of even light and printing opacity; Nucleator is Long carbon chain carboxylic acid calcium salt, and wherein carbon chain lengths is for containing more than 10 carbon atoms, and it can accelerate the crystallization velocity of PP, makes molecular chain rapid crystallization at relatively high temperatures, the spherocrystal particle of the tiny densification of formation rule, thus increases the transparency of PP composition; Other auxiliary agent is lubricant and thermo-stabilizer.Preferably, described oxidation inhibitor is sterically hindered phenol kind antioxidant, comprises antioxidant 1010 and irgasfos 168.Other auxiliary agent described is lubricant and thermo-stabilizer; Preferably, described lubricant is one or more in calcium stearate, stearic acid, polyethylene wax; Described thermo-stabilizer is Dyhard RU 100 or trimeric cyanamide.The preparation method of the acrylic resin of nucleocapsid structure can with reference to " preparation of nucleocapsid structure acrylic resin and particle diameter research " (He Lang; Wang Jingbo; Hong Xinlin; The preparation of nucleocapsid structure acrylic resin and particle diameter research [A]; Chinese Chemical Society the 13 Colloid and interface chemistry meeting paper summary collection [C]).
The invention also discloses the preparation method of above-mentioned height toughness reinforcing light diffusion PP composition, comprise the steps:
(1) raw-material process and mixing
PP resin dries and within 4 hours, controls moisture below 0.1% at 90 DEG C;
Take each component according to weight proportion, homopolymerization type polypropylene, copolymerized type propene polymer and polyolefin elastomer, light diffusing agent, nucleator, oxidation inhibitor, other auxiliary agents are mixed 2 minutes in mixer, make the abundant dispersed with stirring of each component even;
(2) melt extrude
The material mixed is joined the loading hopper of twin screw extruder, melt extruding temperature is between 170-190 DEG C, and screw speed is 400RPM; Through melt extruding, granulation, obtain high toughness reinforcing light diffusion PP composition.
Height of the present invention toughness reinforcing light diffusion PP composition can meet the more difficult situation about being applied at the higher product of some toughness reguirements of original light diffusion PP, substantially increases the Application Areas of photodiffusion material.
Embodiment
The specific implementation method of the high toughness reinforcing light diffusion PP composition of the present invention:
Embodiment 1
First the homopolymerization PP resin of 93.5% weight is dried at 90 DEG C and within 4 hours, control moisture below 0.1%; Subsequently with the polyolefin elastomer of 5% weight, the light diffusing agent of 0.8% weight, primary antioxidant four (β-(3 of 0.1% weight, 5-di-tert-butyl-hydroxy phenyl) propionic acid) pentaerythritol ester (1010) and 0.1% auxiliary antioxidant three (2,4-di-tert-butyl-phenyl) phosphorous acid ester (168), 0.5% weight other auxiliary agents mix 2 minutes by high speed mixer after from metering feeding device enter twin screw extruder plasticizing, melting, then through extruding, cooling, cross magnetic, be packaged to be product.
Embodiment 2
First the homopolymerization PP resin of 91.3% weight is dried at 90 DEG C and within 4 hours, control moisture below 0.1%; Subsequently with the polyolefin elastomer of 7% weight, the nucleator of 0.2% weight, the light diffusing agent of 0.8% weight, primary antioxidant four (β-(3 of 0.1% weight, 5-di-tert-butyl-hydroxy phenyl) propionic acid) pentaerythritol ester (1010) and 0.1% auxiliary antioxidant three (2,4-di-tert-butyl-phenyl) phosphorous acid ester (168), 0.5% weight other auxiliary agents mix 2 minutes by high speed mixer after from metering feeding device enter twin screw extruder plasticizing, melting, then through extruding, cooling, cross magnetic, be packaged to be product.
Embodiment 3
First the homopolymerization PP resin of 72% weight is dried at 90 DEG C and within 4 hours, control moisture below 0.1%, dry at 90 DEG C with the copolymerization PP resin of 19.3% weight subsequently and within 4 hours, control moisture below 0.1%, the polyolefin elastomer of 7% weight, the nucleator of 0.2% weight, the light diffusing agent of 0.8% weight, primary antioxidant four (β-(3 of 0.1% weight, 5-di-tert-butyl-hydroxy phenyl) propionic acid) pentaerythritol ester (1010) and 0.1% auxiliary antioxidant three (2, 4-di-tert-butyl-phenyl) phosphorous acid ester (168), twin screw extruder plasticizing is entered from metering feeding device after other auxiliary agents of 0.5% weight mix 2 minutes by high speed mixer, melting, again through extruding, cooling, cross magnetic, be packaged to be product.
Preparation method and the technique of above-described embodiment product are as follows:
(1) raw-material process and mixing
PP resin dries and within 4 hours, controls moisture below 0.1% at 90 DEG C.
Each component is taken according to weight proportion, major ingredient (homopolymerization type polypropylene, copolymerized type propene polymer) and polyolefin elastomer, light diffusing agent, nucleator, oxidation inhibitor, other auxiliary agents are mixed 2 minutes in high speed mixer, makes the abundant dispersed with stirring of each component even;
(2) melt extrude
The material mixed is joined the loading hopper of twin screw extruder, melt extruding temperature is between 170 ~ 190 DEG C, and screw speed is 350RPM.Through melt extruding, granulation, obtain high toughness reinforcing light diffusion PP composition.
(3) granulation and aftertreatment
The material extruded is cooled, air-dry, pelletizing, crosses strong magnetic, be packaged to be finished product.
Performance carries out standard
Particle dry 4-6 hour in the convection oven of 80--95 DEG C of granulation will be completed in above-described embodiment 1-3, then by the injection moulding sample preparation on 100T injection moulding machine of the particle of drying, in sample making course, keep mould temperature between 30-80 DEG C.
The performance being spread PP composition by the toughness reinforcing light of height of embodiment 1, embodiment 2 and embodiment 3 gained is as follows:
| Test event | Testing standard | Test condition | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Proportion (g/cm3) | D792 | 23℃ | 0.90 | 0.90 | 0.91 |
| Tensile strength (Mpa) | D638 | 10mm/min | 35 | 32 | 30 |
| Elongation at break (%) | D638 | 10mm/min | 64 | 73 | 103 |
| Flexural strength (Mpa) | D790 | 2mm/min | 40 | 37 | 35 |
| Modulus in flexure (Mpa) | D790 | 2mm/min | 1100 | 1020 | 960 |
| Notched Izod impact strength (J/m) | D256 | 3.2mm,23℃ | 87 | 91 | 98 |
| Heat-drawn wire (DEG C) | D648 | 1.8Mpa,6.4mm | 89 | 91 | 93 |
| Transmittance (%) | D1003 | 1.0mm | 75 | 74 | 72 |
| Mist degree (%) | D1003 | 1.0mm | 22 | 23 | 24.5 |
Above-mentioned is preferred embodiment of the present invention, all according to the change done by technical solution of the present invention, the function produced fail the scope exceeding technical solution of the present invention time, all belong to protection scope of the present invention.
Claims (10)
1. a high toughness reinforcing light diffusion PP composition, is characterized in that described composition is made up of following component according to mass percentage:
Wherein, described polyolefin elastomer be metallocene catalysis, ethene and octene realize the thermoplastic elastomer of in-situ polymerization; Described light diffusing agent is the acrylic resin of nucleocapsid structure.
2. height according to claim 1 toughness reinforcing light diffusion PP composition, it is characterized in that homopolymerization type polypropylene is single propylene monomer polymkeric substance, its melting index is at 10-12g/10min, and its number-average molecular weight at 8-15 ten thousand, and dries 2 hours control moisture below 0.1% at 90 DEG C.
3. height according to claim 1 toughness reinforcing light diffusion PP composition, it is characterized in that copolymerized type propene polymer is the segmented copolymer of ethene and propylene, its melting index is at 4-6g/10min, and its number-average molecular weight at 3-10 ten thousand, and dries 2 hours control moisture below 0.1% at 90 DEG C.
4. height according to claim 1 toughness reinforcing light diffusion PP composition, it is characterized in that described light diffusing agent is white powder, add in the resin of unlike material, can disperse uniformly in the base with a kind of trickle transparent glass spheroid form, by the difference of the specific refractory power with different substrate materials, the carrying out of light source penetration reflects, and changes the course of light, reaches the object of even light and printing opacity.
5. height according to claim 1 toughness reinforcing light diffusion PP composition, it is characterized in that described nucleator is Long carbon chain carboxylic acid calcium salt, wherein carbon chain lengths is for containing more than 10 carbon atoms.
6. height according to claim 1 toughness reinforcing light diffusion PP composition, is characterized in that described oxidation inhibitor is sterically hindered phenol kind antioxidant.
7. height according to claim 6 toughness reinforcing light diffusion PP composition, is characterized in that described oxidation inhibitor is antioxidant 1010 and/or irgasfos 168.
8. height according to claim 1 toughness reinforcing light diffusion PP composition, is characterized in that other auxiliary agent described is lubricant and thermo-stabilizer.
9. height according to claim 8 toughness reinforcing light diffusion PP composition, is characterized in that described lubricant is one or more in calcium stearate, stearic acid, polyethylene wax; Described thermo-stabilizer is Dyhard RU 100 or trimeric cyanamide.
10., according to the preparation method of the toughness reinforcing light diffusion of the height in claim 1-9 described in Arbitrary Term PP composition, it is characterized in that comprising the steps:
(1) raw-material process and mixing
PP resin dries and within 4 hours, controls moisture below 0.1% at 90 DEG C;
Take each component according to weight proportion, homopolymerization type polypropylene, copolymerized type propene polymer and polyolefin elastomer, light diffusing agent, nucleator, oxidation inhibitor, other auxiliary agents are mixed 2 minutes in mixer, make the abundant dispersed with stirring of each component even;
(2) melt extrude
The material mixed is joined the loading hopper of twin screw extruder, melt extruding temperature is between 170-190 DEG C, and screw speed is 400RPM; Through melt extruding, granulation, obtain high toughness reinforcing light diffusion PP composition.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410699085.7A CN104448558A (en) | 2014-11-26 | 2014-11-26 | Highly-toughened light-diffusion PP composition and preparation method thereof |
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| CN201410699085.7A CN104448558A (en) | 2014-11-26 | 2014-11-26 | Highly-toughened light-diffusion PP composition and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105670121A (en) * | 2016-03-29 | 2016-06-15 | 南通三盛鑫生物科技有限公司 | Polypropylene composite material |
| CN107245186A (en) * | 2017-02-13 | 2017-10-13 | 佛山市顺德区山德塑胶五金有限公司 | A kind of acrylic sphere foam material and preparation method thereof |
| CN107903505A (en) * | 2017-11-14 | 2018-04-13 | 陕西省石油化工研究设计院 | A kind of method for compounding nucleator tenacity-increased profax |
| CN112409694A (en) * | 2020-11-30 | 2021-02-26 | 欧普照明股份有限公司 | Material for shell and/or mask of lamp and lamp |
Citations (3)
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| EP0269324A2 (en) * | 1986-11-18 | 1988-06-01 | Rohm And Haas Company | Particulate polymer composition, a method of making particulate polymer compositions, and light-scattering thermoplastic polymer compositions containing the particulate polymers |
| CN101858570A (en) * | 2010-01-12 | 2010-10-13 | 天津大学 | High-efficiency photodiffusion material and production method and application thereof |
| CN103724808A (en) * | 2013-12-30 | 2014-04-16 | 安徽科聚新材料有限公司 | Photodiffusion antibacterial polypropylene material and preparation method thereof as well as illuminating lamp prepared therefrom |
-
2014
- 2014-11-26 CN CN201410699085.7A patent/CN104448558A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0269324A2 (en) * | 1986-11-18 | 1988-06-01 | Rohm And Haas Company | Particulate polymer composition, a method of making particulate polymer compositions, and light-scattering thermoplastic polymer compositions containing the particulate polymers |
| CN101858570A (en) * | 2010-01-12 | 2010-10-13 | 天津大学 | High-efficiency photodiffusion material and production method and application thereof |
| CN103724808A (en) * | 2013-12-30 | 2014-04-16 | 安徽科聚新材料有限公司 | Photodiffusion antibacterial polypropylene material and preparation method thereof as well as illuminating lamp prepared therefrom |
Non-Patent Citations (1)
| Title |
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| 欧育湘 等: "《塑料助剂性能与选用速查手册》", 31 January 2012, 国防工业出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105670121A (en) * | 2016-03-29 | 2016-06-15 | 南通三盛鑫生物科技有限公司 | Polypropylene composite material |
| CN107245186A (en) * | 2017-02-13 | 2017-10-13 | 佛山市顺德区山德塑胶五金有限公司 | A kind of acrylic sphere foam material and preparation method thereof |
| CN107903505A (en) * | 2017-11-14 | 2018-04-13 | 陕西省石油化工研究设计院 | A kind of method for compounding nucleator tenacity-increased profax |
| CN112409694A (en) * | 2020-11-30 | 2021-02-26 | 欧普照明股份有限公司 | Material for shell and/or mask of lamp and lamp |
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