CN105504512B - A kind of shallow shrink mark RPP material and preparation method thereof - Google Patents
A kind of shallow shrink mark RPP material and preparation method thereof Download PDFInfo
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- CN105504512B CN105504512B CN201610003681.6A CN201610003681A CN105504512B CN 105504512 B CN105504512 B CN 105504512B CN 201610003681 A CN201610003681 A CN 201610003681A CN 105504512 B CN105504512 B CN 105504512B
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- shrink mark
- shallow
- rpp material
- rpp
- polypropylene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
- C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
- C08J9/141—Hydrocarbons
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2477/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
- C08J2477/06—Polyamides derived from polyamines and polycarboxylic acids
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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
- C08L2203/00—Applications
- C08L2203/14—Applications used for foams
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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
Abstract
The invention discloses a kind of shallow shrink mark RPP material, it is prepared from by the raw material of following components, each component is by mass percentage：Polypropylene 50 70%, nylon resin 5 20%, maleic anhydride grafting POE1 5%, compatilizer 1 5%, K resins 5 15%, expandable microspheres 15 25, organic clay 1 3%.The product surface quality of the present invention is high, not only smooth, nonshrink trace, and scratch resistant, and the intensity of product is higher, disclosure satisfy that the application of the looking products such as household electrical appliance, the automobile higher to appearance requirement.
Description
Technical field
The present invention relates to a kind of shallow shrink mark RPP material and preparation method thereof.
Background technology
Acrylic resin is as a kind of environmentally friendly material, and it is being expanded rapidly using scope.Yet with poly-
Propylene material cools and solidifies speed slowly after moulding, there is the position of thickness change in product, shrink mark phenomenon easily occurs,
Shrink mark refers to the local dent in article surface formation, and shrink mark is often produced in the larger region of local wall thickness, muscle or thrust
The back side, be not obtained enough compensation in cooling by product thick wall part and produced.This serious shadow of surface defect
The appearance looks elegant degree of product is rung, and it is still visible after spray coating, polypropylene material is strongly limit in appearance part
Use.
Research shows, the formation of shrink mark with product design, mold design, moulding process etc. except having outside the Pass, also and material
Itself have much relations, first, crystalline material is more prone to shrink mark for amorphous material because crystalline material from
During molten condition to room temperature, strand ordered arrangement formation crystal.Polypropylene material belongs to crystalline material, and itself
Shrinkage factor is big, so being easy to produce shrink mark, secondly, the production to shrink mark such as viscosity and filling additive of material should also have very
Big influence.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of shallow shrink mark RPP material and preparation method thereof.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of shallow shrink mark RPP material, is prepared from, each component is by mass percentage by the raw material of following components
Meter：Polypropylene 50-70%, nylon resin 5-20%, maleic anhydride grafting POE1-5%, compatilizer 1-5%, K resin 5-15%,
Expandable microspheres 15-25, organic clay 1-3%.
K resins are to refer to transparent butadiene-styrene impact resin.
The expandable microspheres shell is acrylic copolymer, and the foaming agent of interior bag is isopentane, and the expandable microspheres are put down
Equal particle diameter is 25-35 μm.
The organic clay is that organic ammonium is modified smectite organic clay.
The nylon resin is aliphatic diamine condensation of the aliphatic dicarboxylic acid with including 4 to 12 carbon atoms
Semicrystalline polyamides.
The polypropylene be under 230 DEG C of load 2.16Kg of temperature melt index in 25-50g/10min homopolymerization poly- third
Alkene.
The compatilizer is selected from polypropylene grafted maleic anhydride, styrene-grafted maleic anhydride, ethylene propylene diene rubber grafting
One or more in maleic anhydride and ethylene propylene diene rubber graft glycidyl methacrylate.
A kind of preparation method of above-mentioned shallow shrink mark RPP material, including step：
(1) each component is fallen into super mixer by proportioning and stirred, extruded machine extruding pelletization obtains plastic master
Grain；
(2) by step (1) to plastic master batch add injection molding in injection machine, produce required product.
The beneficial effect that the present invention is reached：
(1) product surface quality of the invention is high, not only smooth, nonshrink trace, and scratch resistant, the intensity of product compared with
Height, disclosure satisfy that the application of the looking products such as household electrical appliance, the automobile higher to appearance requirement；
(2) nylon, particularly aliphatic dicarboxylic acid and the aliphatic diamine condensation comprising 4 to 12 carbon atoms
Semicrystalline polyamides can provide splendid mechanical performance, and the advantage of both obtained collection of material is used cooperatively with polypropylene；
(3) expandable microspheres play internal expansion effect in whole blending system, can effectively offset because of crystalling propylene
And the volume contraction caused, so as to ensure the dimensional stability of product, resist the generation of shrink mark, organic clay regulation system it is viscous
Degree, suitable viscosity enough reduces punch die resistance, improves pressurize feeding effect, improves the shrink mark of product, improves products surface quality.
Embodiment
With reference to specific embodiment, the invention will be further described.Following examples are only used for clearly illustrating
Technical scheme, and can not be limited the scope of the invention with this.
Embodiment 1-3
Embodiment 1-3 each components and mass percent proportioning are referring to table 1, and preparation method includes step：(1) each component is pressed
Proportioning, which is fallen into super mixer, to stir, and extruded machine extruding pelletization obtains plastic master batch；(2) by arriving in step (1)
Plastic master batch adds injection molding in injection machine, produces required product.
Wherein, in embodiment 1-3 polypropylene used be under 230 DEG C of load 2.16Kg of temperature melt index in 25-50g/
10min HOPP.Nylon resin is that aliphatic dicarboxylic acid is condensed with the aliphatic diamine comprising 4 to 12 carbon atoms
Semicrystalline polyamides.Organic clay is that organic ammonium is modified smectite organic clay, and expandable microspheres shell is acrylic
Copolymer, the foaming agent of interior bag is isopentane, and expandable microspheres average grain diameter is 30 μm.Compatilizer first use is that polypropylene connects
Branch maleic anhydride, styrene-grafted maleic anhydride, styrene-grafted maleic anhydride and grafting maleic anhydride with ethylene propylene terpolymer
Mixture.
Comparative example 1-3
Comparative example 1-3 feed components are formulated referring to table 1, and each component preparation method leads to embodiment 2, wherein, comparative example 1
Difference with embodiment 2 is that, without using nylon resin in being formulated, the difference of comparative example 2 and embodiment 2 is without using swollen in being formulated
The difference of swollen microballoon, comparative example 3 and embodiment 2 is without using organic clay in being formulated.
Each component formula in the embodiment of table 1 and comparative example：
Performance test
Performance test includes measuring mechanical property and appearance is tested, embodiment 1-3 and comparative example 1-3 test result
2 are shown in Table, wherein：
Measuring mechanical property standard measures stretch modulus according to ISO 527-2/1B/1, and appearance property test uses injection sample
This (melting temperature：About 290 DEG C；Mold temperature：About 90 DEG C, and dwell pressure is 90MPa), carry out appearance and shrink mark is surveyed
Amount.Test sample of the molding with 353 × 100 × 2mm rectangular shapes in the mould with smooth surface (i.e. texture-free).Survey
Sample sheet has 25 × 5 × 1.5mm rib.The test sample of measurement molding dry state (DAM) at 23 DEG C.Shrink mark depth step
Instrument is measured, the outward appearance visual method such as surfacing, smooth.Scratch resistant performance is evaluated using damage resistant tester, with a machine
The scraper of tool driving scrapes a line segment figure on the frosting of preparation.Then non-surface scratch is measured with a colorimeter
Misalignment.In same sample region, measure sample respectively with spectral photometric colour measuring meter and scratch front and rear surfaces light scattering value, to scratch
Front and rear light scattering difference DELTA E measures the quality of studies on scratch resistance of PP, and Δ E values are smaller, show that the scratch resistance of product is better.
The embodiment of table 2 and comparative example the performance test results：
As seen from Table 2, nylon is larger to the overall Effect on Mechanical Properties of material, and expandable microspheres and organic clay are for carrying
High products surface quality and nonshrink trace performance contribution are larger, and not only the strength of materials is high for polypropylene material of the invention, scratch resistance
Can be excellent, moreover, the nonshrink trace situation and presentation quality of product surface are attained by and balanced well.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, some improvement and deformation can also be made, these improve and deformed
Also it should be regarded as protection scope of the present invention.
Claims (6)
1. a kind of shallow shrink mark RPP material, it is characterised in that be prepared from by the raw material of following components, each component presses matter
Measure percentages：Polypropylene 50-70%, nylon resin 5-20%, maleic anhydride grafting POE1-5%, compatilizer 1-5%, K resin 5-
15%, expandable microspheres 15-25%, organic clay 1-3%, the compatilizer are selected from polypropylene grafted maleic anhydride, ethylene propylene diene rubber
One or more in grafted maleic anhydride and ethylene propylene diene rubber graft glycidyl methacrylate.
2. a kind of shallow shrink mark RPP material according to claim 1, it is characterised in that the expandable microspheres shell
For acrylic copolymer, the foaming agent of interior bag is isopentane, and the expandable microspheres average grain diameter is 25-35 μm.
3. a kind of shallow shrink mark RPP material according to claim 1 or 2, it is characterised in that the organic clay
Smectite organic clay is modified for organic ammonium.
4. a kind of shallow shrink mark RPP material according to claim 3, it is characterised in that the nylon resin is fat
Fat race dicarboxylic acids and the semicrystalline polyamides of the aliphatic diamine condensation comprising 4 to 12 carbon atoms.
5. a kind of shallow shrink mark RPP material according to claim 1, it is characterised in that the polypropylene is in temperature
Spend HOPP of the melt index in 25-50g/10min under 230 DEG C of .16Kg of load 2.
6. a kind of shallow shrink mark RPP material preparation method as described in claim any one of 1-5, it is characterised in that bag
Include step：
（1）Each component is added by proportioning and stirred in super mixer, extruded machine extruding pelletization obtains plastic master batch；
（2）By step（1）In obtained plastic master batch add injection molding in injection machine, produce required product.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610003681.6A CN105504512B (en) | 2016-01-05 | 2016-01-05 | A kind of shallow shrink mark RPP material and preparation method thereof |
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| CN201610003681.6A CN105504512B (en) | 2016-01-05 | 2016-01-05 | A kind of shallow shrink mark RPP material and preparation method thereof |
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| CN105504512A CN105504512A (en) | 2016-04-20 |
| CN105504512B true CN105504512B (en) | 2017-11-07 |
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| CN107987453A (en) * | 2017-12-15 | 2018-05-04 | 会通新材料股份有限公司 | One kind injection grade polypropylene/polyamide micro foaming composite material and preparation method thereof |
| CN110607004A (en) * | 2019-09-20 | 2019-12-24 | 南京元初科技有限公司 | Environment-friendly composite plastic with pearlescent effect and preparation method thereof |
| CN110982174A (en) * | 2019-11-29 | 2020-04-10 | 苏州润佳高分子材料有限公司 | Shallow sink mark reinforced polypropylene material for automobile |
| CN111087684A (en) * | 2019-12-17 | 2020-05-01 | 会通新材料股份有限公司 | Polypropylene-nylon 6 alloy micro-foaming wave-absorbing material and preparation method thereof |
| CN112480399A (en) * | 2020-11-26 | 2021-03-12 | 贵州凯科特材料有限公司 | Nucleating agent, composition for preparing transparent toughened nylon material, transparent toughened nylon material and preparation method thereof |
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| US6331343B1 (en) * | 1999-05-07 | 2001-12-18 | 3M Innovative Properties Company | Films having a fibrillated surface and method of making |
| CN102382435B (en) * | 2010-08-30 | 2013-03-27 | 陈金福 | Biomass composite component and foaming method thereof |
| CN102993554B (en) * | 2011-09-14 | 2016-06-29 | 辽宁辽杰科技有限公司 | A kind of glass micro-bead filling modified thermoplastic structure's sheet material and preparation method thereof |
| CN102336968A (en) * | 2011-09-20 | 2012-02-01 | 奇瑞汽车股份有限公司 | Modified polypropylene composite material and preparation method thereof |
| CN102477166A (en) * | 2011-09-28 | 2012-05-30 | 深圳光启高等理工研究院 | Metamaterial substrate and preparation method thereof |
| KR101352792B1 (en) * | 2011-11-04 | 2014-01-17 | 현대자동차주식회사 | Composition for Porous Plastics for Intake Housings |
| CN103709509A (en) * | 2013-12-17 | 2014-04-09 | 浙江普利特新材料有限公司 | Expandable microsphere filling modified polypropylene composite material and preparation method thereof |
| CN105196666A (en) * | 2015-09-28 | 2015-12-30 | 凉山州锡成新材料股份有限公司 | Ultrafine silicate high-filled polyolefin wallpaper base paper and production method thereof |
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Effective date of registration: 20191213 Address after: No.91, Qinan Road, Xiangcheng District, Suzhou City, Jiangsu Province Patentee after: Suzhou Runjia polymer materials Co.,Ltd. Address before: 698 No. 215122 Jiangsu Province, Suzhou City Industrial Park Fengting Avenue Patentee before: SUZHOU RUNJIA ENGINEER PLASTIC Co.,Ltd. |
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Denomination of invention: A shallow shrinkage mark reinforced polypropylene material and its preparation method Effective date of registration: 20230130 Granted publication date: 20171107 Pledgee: Zhejiang Tailong Commercial Bank Co.,Ltd. Suzhou Branch Pledgor: Suzhou Runjia polymer materials Co.,Ltd. Registration number: Y2023320010063 |