CN107603025A - A kind of thin-walled injection moulding PP composite material and preparation method thereof - Google Patents
A kind of thin-walled injection moulding PP composite material and preparation method thereof Download PDFInfo
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- CN107603025A CN107603025A CN201711047793.2A CN201711047793A CN107603025A CN 107603025 A CN107603025 A CN 107603025A CN 201711047793 A CN201711047793 A CN 201711047793A CN 107603025 A CN107603025 A CN 107603025A
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- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
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- 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
- C08K9/00—Use of pretreated ingredients
- C08K9/10—Encapsulated ingredients
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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
- 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
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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
- C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L53/02—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes
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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
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
Abstract
The invention discloses a kind of thin-walled injection moulding PP composite material and preparation method thereof, composite includes following components and each component is calculated as with parts by weight：High-flowability polypropylene matrix material, 60 90 parts；Cladded type talcum powder master batch, 5 40 parts；Ternary polymerization pp, 2 15 parts；POE, 2 15 parts；K resins, 1 10 parts；Organic fiber, 20 30 parts, other auxiliary agents, 1 part.PP composite material prepared by the present invention has high fluidity and high rigidity, available for Thin Wall Plastic Parts are prepared, has the characteristics of anti-tiger fur line, nonshrink wall, low warpage.
Description
Technical field
The present invention relates to a kind of thin-walled injection moulding PP composite material and preparation method thereof, belong to polymer composite
Technical field.
Background technology
Lightweight, energy-conserving and environment-protective and efficiently at low cost production be always the target persistently pursued of auto industry.For vapour
Car lightweight, the demand for development material of low cost have high fluidity, and such material processing characteristics is good, article manufacturing cycle
It is short；With high-crystallinity and compared with broad molecular weight distribution, make material stiffness good, products thickness can be reduced, mitigate product matter
Amount.Material possesses above performance, is advantageous to auto parts and components product thin-walled property, mitigates quality, realize vehicle lightweight and it is low into
This.
High flowing shock resistance PP copolymers can be directly being produced by reactor in the world, are on the one hand being further to improve
The balance of the rigidity of impact copolymer, toughness and mobility；Second, the feature of impact copolymer is improved, for making
Make the vehicle key parts such as bumper.At home for thin-walled injection moulding high fluidity high rigidity PP composite material side
Face, 2014, the use Milliken chemical industry Hyperform that Sinopec Qingdao oil-refining chemical Co., Ltd releases
Serial 4 products of polypropylene dedicated resin PPH-MM45, PPH-MM50, the PPH-MM60 of thin-walled injection moulding of HPN20E nucleators.Its
Melt flow rate (MFR) is 45~60 g/10 min, has the high grade of transparency, rapid shaping, high rigidity and preferable impact resistance etc. excellent
Point.The exploitation of above-mentioned PP composite material, is mainly based upon the products such as disposable lunch box, packing box, and this Project Product is main
For auto parts and components.
Other Chinese patent CN102816384B discloses a kind of fiber glass reinforced polypropylene composite wood of the low warpage of shallow shrink mark
Material and its preparation method and application, it has selected the polypropylene and short glass fiber of high-crystallinity, although can drop to a certain extent
The generation of low-shrinkage trace, but easily cause glass emergence on the surface phenomenon.Chinese patent CN100569842C discloses a kind of acrylic resin
Composition and preparation method thereof, petroleum resin modified dose and Sorbitol Nucleator, and silica has been used to add as inorganic
Add agent, the product of the invention has obtained relatively good transparent acrylic resin, and its mist degree can preferably be down to less than 10, mechanics
Performance also reaches relatively good effect, but its mobility need to be improved, and MI values are relatively low.It is and thin for PP composite material
The problems such as current mark and tiger fur line that occur in wall Shooting Technique, contracting wall, warpage, by Literature Consult, Jiangsu University is large within 2011
Bachelorship paper, numerical simulation and the buckling deformation control of bumper injection molding are mainly have studied, mainly provides one
The method that kind effectively reduces amount of warpage；Central South University's master thesis in 2014《Thin-walled injection moulding shaping median surface heat transfer is to molten
The influence research of lapping defect》It is main to have studied optimization problem of the thin-walled injection moulding shaping median surface heat transfer to weld mark；Sichuan in 2014
Joint Sichuan University of Changhong molding Science and Technology Ltd. develops the very thin injection-molded test specimens of long glass fiber-reinforced polypropylene, have studied complete
The fiber content of injection moulded products diverse location under conditions of full-filling, distribution of lengths, orientation situation and to its mechanical property
The influence of energy, mainly to PP composite material, performance is optimized the studies above in a certain respect.
The content of the invention
The technical problem to be solved by the invention is to provide a kind of anti-tiger fur line, nonshrink wall, low warpage polypropylene composite materials
Material.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of thin-walled injection moulding PP composite material, including following components and each component are calculated as with parts by weight：
The MFR of the high-flowability polypropylene matrix material is more than 100g/10min.
The surface modifier formula that the cladded type talcum powder master batch use includes following components and each component is with parts by weight
Number is calculated as：
The organic fiber is PET.
Other described auxiliary agents include antioxidant, aging auxiliary agent or stabilizer.
A kind of preparation method of thin-walled injection moulding PP composite material, comprises the following steps：
(1) by aforementioned weight proportioning weigh polypropylene, modified talc powder, ternary polymerization pp, POE, K resin, organic fiber and
Other auxiliary agents；
(2) by each component described in step (1) dry-mixed 10 minutes in super mixer；
(3) step (2) mixed material is placed in double screw extruder, through melting extrusion, is granulated, obtains low-odor polypropylene
The pellet of alkene material, its process control condition are：One 180~190 DEG C of area, two 200~210 DEG C of areas, three 200~210 DEG C of areas,
Four 210~215 DEG C of areas, five 210~215 DEG C of areas, six 210~215 DEG C of areas, seven 215~225 DEG C of areas, eight 215~225 DEG C of areas,
Nine 215~225 DEG C of areas, ten 215~225 DEG C of areas；Residence time is 1-2min, pressure 12-18MPa.
The beneficial effect that the present invention is reached：
（One）, from POE, organosilicon, PE and other auxiliary agents talcum powder is modified, modified talcum powder is more held
It is easily compatible with polypropylene matrix, PP composite material mobility is improved, following index can be met：1st, not reduce material curved
On the premise of bent, tensile strength, the notch impact strength 50-100% of material is improved, the organic polymer selected by 2. has with PP
Certain compatibility, and prepared material 80 DEG C it is continuous place 500 hours without separating out tacky phenomenon, 3, pass through Electronic Speculum detection hair
Now it is obviously improved dispersiveness of the talcum powder in matrix resin, 4, clad ratio ＞ 95%；
（Two）Can solve polypropylene matrix material and POE compatibility by adding ternary polymerization PP material, improve formula
Compatibility and mobility；
（Three）The rigidity, impact strength and reduction material that PP composite material is improved by adding organic fiber and other material are close
Degree, can expand product use range, meet market different demands；
（Four）Using the high combination for flowing anti-tiger fur line PP, three kinds of cladded type talcum powder master batch, ternary polymerization PP main materials, then
With reference to special design of the thin-walled plastic injection mold in reinforcement, buckle part, realize that product surface tiger fur line is reduced；
（Five）Using materials such as K resins, organosilicons in PP composite material, by changing PP crystalline rates, in conjunction with thin
Wall injection mold realizes that material surface contracting wall phenomenon is reduced in the special design of reinforcement, buckle part；
（Six）By high-flowability polypropylene formula, realize that material diminishes in internal stress caused by thin-walled injection moulding, in conjunction with thin
The die temperance control of wall Shooting Technique, it can further optimize material warp performance.
Brief description of the drawings
Fig. 1 is that the thin wall component prepared using embodiment 1 improves tiger fur line and trace phenomenon comparison diagram：（a）Typically
Tiger fur line phenomenon,（b）Perpendicular to the typical trace phenomenon in reinforcement direction,（c）The performance of embodiment 1;
Fig. 2 is the thin wall component contracting wall performance comparison diagram prepared using embodiment 1：（a）The contracting wall performance of PS resins,（b）It is conventional
Material T20 contracting wall performance,（c）The contracting wall performance of embodiment 1；
Fig. 3 is the thin wall component contracting wall depth test figure comparison diagram prepared using embodiment 1：（a）The contracting wall depth of PS resins is surveyed
Attempt（Contracting wall depth 5.1um）,（b）Conventional material T20 contracting wall depth test figure（Contracting wall depth 15.3um）,（c）Embodiment 1
Depth test figure（Contracting wall depth 5.3um）.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following examples are only used for clearly illustrating the present invention
Technical scheme, and can not be limited the scope of the invention with this.
Embodiment 1
Raw material is weighed according to following component and parts by weight：80 parts of high-flowability polypropylene matrix material, cladded type talcum powder
30 parts of master batch, ternary polymerization pp12 parts, 12 parts of K resins, PET12 parts, 1 part of light stabilizers, wherein weighing following parts by weight
Compare PE：POE：Organosilicon：Heat stabilizer is 80:10:5:1 raw material coats to talcum powder, obtains cladded type talcum powder mother
Grain is used for subsequent material and prepared.
By above-mentioned each component dry-mixed 10 minutes in super mixer；Mixed material is placed in double screw extruder,
Through melting extrusion, it is granulated, obtains the pellet of Low-odor polypropylene material, its process control condition is：One 180~190 DEG C of area, two
200~210 DEG C of area, three 200~210 DEG C of areas, four 210~215 DEG C of areas, five 210~215 DEG C of areas, six 210~215 DEG C of areas, seven
215~225 DEG C of area, eight 215~225 DEG C of areas, nine 215~225 DEG C of areas, ten 215~225 DEG C of areas；Residence time is 1-2min, pressure
Power is 12-18MPa.Its performance parameter the results are shown in Table 1.
The performance parameter of the composite of 1 embodiment of table 1
| Numbering | Test event | Unit | Testing standard | Standard figures |
| 1 | Density | g/cm3 | ISO 1183 | 1.06 |
| 2 | Melt index | g/10min | ISO 1133 | 41 |
| 3 | Tensile strength | MPa | ISO 527 | 18.5 |
| 4 | Bending strength | MPa | ISO 178 | 28.5 |
| 5 | Bending modulus | MPa | ISO 178 | 2550 |
| 6 | Notch impact strength（23℃） | kJ/m2 | ISO 180 | 29 |
| 7 | Notch impact strength（-30℃） | kJ/m2 | ISO 180 | 3.5 |
| 8 | Tiger fur line | Without tiger fur line | ||
| 9 | Trace | Without gas trace | ||
| 10 | Contracting wall depth | um | Alpha step step instruments | 5.3 |
Described above is only the preferred embodiment of the present invention, it is noted that is come for those skilled in the art
Say, without departing from the technical principles of the invention, some improvement and deformation can also be made, these are improved and deformation also should
It is considered as protection scope of the present invention.
Claims (6)
1. a kind of thin-walled injection moulding PP composite material, it is characterized in that, including following components and each component are in terms of parts by weight
For：
High-flowability polypropylene matrix material 60-90 parts
Cladded type talcum powder master batch 5-40 parts
Ternary polymerization pp 2-15 parts
POE 2-15 parts
K resin 1-10 parts
Organic fiber 20-30 parts
1 part of other auxiliary agents.
2. a kind of thin-walled injection moulding PP composite material according to claim 1, it is characterized in that, the high fluidity is gathered
The MFR of polypropylene matrix material is more than 100g/10min.
3. a kind of thin-walled injection moulding PP composite material according to claim 2, it is characterized in that, the cladded type talcum
The surface modifier formula that powder master batch uses includes following components and each component is calculated as with parts by weight：
PE 60-90 parts
POE 5-15 parts
Organosilicon 2-8 parts
Other 1 part of auxiliary agents.
4. a kind of preparation method of thin-walled injection moulding PP composite material according to claim any one of 1-3, it is special
Sign is that the organic fiber is PET.
5. a kind of preparation method of thin-walled injection moulding PP composite material according to claim 4, it is characterized in that, it is described
Other auxiliary agents include antioxidant, aging auxiliary agent or stabilizer.
6. a kind of preparation method of thin-walled injection moulding PP composite material according to claim 4, it is characterized in that, including
Following steps：
(1) by aforementioned weight proportioning weigh polypropylene, modified talc powder, ternary polymerization pp, POE, K resin, organic fiber and
Other auxiliary agents；
(2) by each component described in step (1) dry-mixed 10 minutes in super mixer；
(3) step (2) mixed material is placed in double screw extruder, through melting extrusion, is granulated, obtains low-odor polypropylene
The pellet of alkene material, its process control condition are：One 180~190 DEG C of area, two 200~210 DEG C of areas, three 200~210 DEG C of areas,
Four 210~215 DEG C of areas, five 210~215 DEG C of areas, six 210~215 DEG C of areas, seven 215~225 DEG C of areas, eight 215~225 DEG C of areas,
Nine 215~225 DEG C of areas, ten 215~225 DEG C of areas；Residence time is 1-2min, pressure 12-18MPa.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711047793.2A CN107603025A (en) | 2017-10-31 | 2017-10-31 | A kind of thin-walled injection moulding PP composite material and preparation method thereof |
| PCT/CN2018/104810 WO2019085646A1 (en) | 2017-10-31 | 2018-09-10 | Polypropylene composite material for use in thin-wall injection molding and preparation method therefor |
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| CN201711047793.2A CN107603025A (en) | 2017-10-31 | 2017-10-31 | A kind of thin-walled injection moulding PP composite material and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019085646A1 (en) * | 2017-10-31 | 2019-05-09 | 苏州润佳工程塑料股份有限公司 | Polypropylene composite material for use in thin-wall injection molding and preparation method therefor |
| CN110016185A (en) * | 2019-04-16 | 2019-07-16 | 苏州润佳工程塑料股份有限公司 | A kind of thin-walled injection moulding fiber glass reinforced polypropylene material and preparation method thereof |
| CN110964248A (en) * | 2019-11-29 | 2020-04-07 | 苏州润佳高分子材料有限公司 | Soft touch polypropylene composite material for automobile |
| CN112662075A (en) * | 2020-12-11 | 2021-04-16 | 成都金发科技新材料有限公司 | Polypropylene composite material capable of eliminating appearance defects of ghost and tiger skin |
| CN115536939A (en) * | 2022-10-21 | 2022-12-30 | 苏州润佳高分子材料有限公司 | Antistatic polypropylene composite material and preparation method thereof |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113861554B (en) * | 2021-09-07 | 2023-08-29 | 金发科技股份有限公司 | High-gloss and well-dispersed polypropylene talcum powder master batch and preparation method and application thereof |
| CN114369314B (en) * | 2021-12-29 | 2023-08-29 | 重庆普利特新材料有限公司 | Polypropylene composite material capable of improving die sticking, high in performance and thin in wall and preparation method thereof |
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| CN105778297A (en) * | 2016-03-30 | 2016-07-20 | 上海俊尓新材料有限公司 | Polypropylene (PP) composite material used for thin-wall bumpers and preparation method thereof |
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| CN107603025A (en) * | 2017-10-31 | 2018-01-19 | 苏州润佳工程塑料股份有限公司 | A kind of thin-walled injection moulding PP composite material and preparation method thereof |
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- 2018-09-10 WO PCT/CN2018/104810 patent/WO2019085646A1/en active Application Filing
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| CN105219005A (en) * | 2015-10-10 | 2016-01-06 | 中广核俊尔新材料有限公司 | Polypropylene composite material of tiger fur line and its preparation method and application can be eliminated completely |
| CN105778297A (en) * | 2016-03-30 | 2016-07-20 | 上海俊尓新材料有限公司 | Polypropylene (PP) composite material used for thin-wall bumpers and preparation method thereof |
| CN106243487A (en) * | 2016-07-29 | 2016-12-21 | 苏州润佳工程塑料股份有限公司 | Anti-Budgerigar stricture of vagina, nonshrink wall, low warpage PP composite material |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019085646A1 (en) * | 2017-10-31 | 2019-05-09 | 苏州润佳工程塑料股份有限公司 | Polypropylene composite material for use in thin-wall injection molding and preparation method therefor |
| CN110016185A (en) * | 2019-04-16 | 2019-07-16 | 苏州润佳工程塑料股份有限公司 | A kind of thin-walled injection moulding fiber glass reinforced polypropylene material and preparation method thereof |
| CN110964248A (en) * | 2019-11-29 | 2020-04-07 | 苏州润佳高分子材料有限公司 | Soft touch polypropylene composite material for automobile |
| CN112662075A (en) * | 2020-12-11 | 2021-04-16 | 成都金发科技新材料有限公司 | Polypropylene composite material capable of eliminating appearance defects of ghost and tiger skin |
| CN112662075B (en) * | 2020-12-11 | 2024-01-09 | 成都金发科技新材料有限公司 | Polypropylene composite material capable of eliminating ghosting and tiger skin line appearance defects |
| CN115536939A (en) * | 2022-10-21 | 2022-12-30 | 苏州润佳高分子材料有限公司 | Antistatic polypropylene composite material and preparation method thereof |
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| WO2019085646A1 (en) | 2019-05-09 |
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Application publication date: 20180119 |