CN105694223A - Glass fiber reinforced polypropylene composite material and preparation method thereof - Google Patents
Glass fiber reinforced polypropylene composite material and preparation method thereof Download PDFInfo
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
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- 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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- C08L2205/24—Crystallisation aids
Abstract
The invention relates to a glass fiber reinforced polypropylene composite material and a preparation method thereof. The composite material comprises the following raw materials in parts by weight: 50-80 parts of polypropylene, 10-50 parts of short glass fiber reinforcement, 5-10 parts of interface compatilizer and 0.5-3 parts of micro-structure adjustment auxiliary. In the invention, the glass fiber reinforcing systems different in structure and diameter are matched to form an organic-inorganic two-phase reinforcing system with uniform distribution and good interface bonding under the auxiliary effect of efficient interface compatibilization and quick crystallization nucleation; the warping deformation of the obtained polypropylene composite material is reduced by 30-60% compared with a traditional material; particularly, the behaviors of the low-content glass fiber reinforcing system are more outstanding; the rigid indexes of the material such as bending strength and bending modulus are improved by 30%; and meanwhile, the material shrinkage is lower, and the dimensional stability is excellent in high- and low-temperature environments.
Description
Technical field
The invention belongs to technical field of polymer materials, be specifically related to glass fiber reinforced polypropylene composite material of a kind of low warpage, high-dimensional stability, high rigidity and preparation method thereof。
Background technology
Polypropylene PP is a kind of wide variety of general-purpose plastics, there is excellent combination property and the price of processing and forming type, relative moderate, add glass fibre GF and can not only effectively make up polyacrylic performance deficiency, and material cost can be reduced further, it is one of the focus of current automobile polypropylene material modification。
Along with current automotive light weight technology, the becoming increasingly conspicuous of environmental protection demand; the glass fiber reinforced thermoplastics composite of high performance-price ratio is a kind of desirably solution; there is the features such as processing injection moulding easy, easy, fiber are evenly distributed, the secondary load-carrying construction parts that to be suitable in automobile complex-shaped。For front end frame, the small passenger car that performance requirement is relatively low, yield is bigger progressively adopts can the glass fiber reinforcement thermoplastic granulates material of injection mo(u)lding, wherein outstanding example is exactly long glass fiber reinforced material LFT, but owing in particle, institute's fibre-bearing is long, the cast gate of mould during to parts-moulding, runner, Structural Design Requirement are significantly high, and processing output is on the low side, high expensive, it is unfavorable on automobile large-scale promotion, and the advantage place of these short glass fiber reinforcing material SFT just。
But, the self-defect of short glass fiber reinforced polypropylene compound material is also highlight very much, the most significantly precisely due to the distribution length too short (05～0.8mm) of contained fortifying fibre in its particle, it is significantly less than 2～3mm of long glass fiber-reinforced polypropylene, thus, not only considerably lower in fiber-reinforcing effect and material mechanical performance, and the integrated support effect of Injection moulded part is also very limited, the easy warpage of goods, deformation, particularly in the large-scale smooth product such as end backplate for some low thickness (≤2mm), enging cabin cover cap, during case cover etc. especially prominent。Therefore, traditional solution such as shallow shrink mark described in CN201210281373, low warp glass fiber RPP material, isotropic mineral-filled body is adopted partly to substitute one-dimension oriented fiberglass reinforced body, although the deformation degree of its material can be improved, but the use of the breeze of reinforced effects relative efficiency, reduces rigidity and the intensity of material to a certain extent；CN201310465800 also uses similar solution, although the reinforced effects of glass powder is better than mineral system, but the loss of length makes the overall mechanical property of material still in relatively low level；Existing case shows, isotropic powder systems introduces the degree of orientation that can improve fibre reinforced materials to a certain extent, but reduce the mechanical property of material for cost with part, and its modified emphasis relies on merely fiber reinforcement system, and have ignored the whole structure of fibre reinforced composites, especially the effect of matrix modification, therefore, this can not really tackle the lightweight trend of current automobile " to mould Dai Gang " the core demand to high-performance fiber glass reinforced polypropylene product used。
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, it is provided that a kind of glass fiber reinforced polypropylene composite material and preparation method thereof。
It is an object of the invention to be achieved through the following technical solutions:
The first object of the present invention is in that to provide a kind of glass fiber reinforced polypropylene composite material, including the raw material of following weight portion:
Described micro structure adjusts auxiliary agent and is made up of crystalling propylene nucleator and nano functional master batch；Wherein, crystalling propylene nucleator is 0.2～1 weight portion, and nano functional master batch is 0.3-2 weight portion。
Further, described polypropylene is HOPP, 230 DEG C, under the test condition of 2.16Kg, its melt index is 2～20g/min。
Further, described short glass fiber strengthen system in the rounded short glass fiber in cross section, oval short glass fiber, triangle short glass fiber one or more, fibre diameter is 7～13um, and chopped length is 3～4.5um。
Further, described interfacial compatibilizer is maleic anhydride inoculated polypropylene PP-MAH, and percent grafting is 1.0%。
Further, described crystalling propylene nucleator in polypropylene 6, nucleator in organic phosphate class, aromatic amine nucleator, the rare earth chemistry thing one or more。
Further, described nano functional master batch is strengthen particle with the polypropylene PP 400-800nm nano-scale dispersion nanoscale inorganic mineral being carrier, and its solids content is 5～20wt%。
The second object of the present invention is in that the preparation method providing a kind of glass fiber reinforced polypropylene composite material, said method comprising the steps of:
(1) first weigh polypropylene, interfacial compatibilizer, micro structure adjustment auxiliary agent, mix homogeneously by following weight portion, obtain mixed material, then weigh short glass fiber and strengthen system；
Described micro structure adjusts auxiliary agent and is made up of crystalling propylene nucleator and nano functional master batch；Wherein, crystalling propylene nucleator is 0.2～1 weight portion, and nano functional master batch is 0.3-2 weight portion；
(2) by dried for above-mentioned mixed material, it is placed in the main feeding bin of meshing co rotating twin screw extrusion, join in the machine barrel of extruder through feed screw, short glass fiber is strengthened system and joins extruder from side spout, extruder screw diameter is 35mm, draw ratio L/D is 40, each zone temperature that main barrel exports from charge door to head is set as: 60 DEG C, 180 DEG C, 200 DEG C, 210 DEG C, 220 DEG C, 220 DEG C, 220 DEG C, engine speed is 200 revs/min, through melt extruding, cooling, pelletize, drying and processing, prepare glass fiber reinforced polypropylene composite material。
By the high-performance glass fiber reinforced polypropylene composite material that technical scheme prepares, there is extremely excellent anti-warp characteristics and dimensional stability, simultaneously, avoid adding the powder body reduction to composite inflexible target, better should design lower large scale structure product to raw-material performance indications requirement by right automotive light weight technology。Invention emphasis be in that select difformity, diameter chopped glass fiber reinforcement composite, under the aid dispersion effect of nano functional master batch, orientation and the dispersed and distributed situation of fiber have all had obvious improvement, therefore, well distributed enhancing system is better to the support effect of polypropylene matrix, thus giving the better dimensional stability of composite and that resist warping deformability。Glass fiber content is when 20%, composite amount of warpage conventional material on year-on-year basis reduces by 40%～50%, and it being promoted to 50% further along with glass fiber content, the buckling deformation amount of composite levels off to zero, and also maintains similar size effect when environment alternation；The more important thing is, the acquisition of this dimensional characteristic is not with the rigidity sacrificing composite for cost, the more conventional material of bending property index of opposite material has the increase rate of 30%～40%, bending strength ranges up to 170MPa, bending modulus is at more than 9500MPa, its property indices and machine-shaping show the Long Glass Fiber Reinforced PP Composite of the equal glass fiber content of convergence, show that high-performance short glass fiber reinforced polypropylene compound material that institute obtains is at front end frame, skylight sash, instrument board framework, enging cabin cover cap, the large scale structure products such as engine bottom guard plate or functor aspect have good application prospect。
By the selection of unique Multiple Shape fiberglass reinforced body and composite, it is aided with Interfacial compatibilization agent, micro structure regulator is to matrices of composite material, effective adjustment at interface, prepared modified glass fiber reinforced polypropylene composite material is made to possess distributed dimension less, degree of scatter is higher, orientation rationally strengthens system, plus auxiliary agent, the effective of polypropylene matrix crystal property is adjusted, its crystal regularity is high, crystalline rate is fast, thus ensure that material possesses the dimensional stability in fabulous anti-warp characteristics and high and low temperature environment, simultaneously, owing to avoiding using the mineral system of low reinforced effects, the main rigidity of material, intensity index such as bending strength and modulus, unnotched impact strengths etc. not only do not reduce, there is the improvement of partial extent on the contrary, especially the improvement of impact property is particularly evident, the property indices of material can meet the associated materials standard of each famous brand main engine plants。
Compared with prior art, the positive effect of the present invention is as follows:
The present invention is directed to traditional short glass fiber RPP material because Length of Glass Fiber is low, skewness, low plus crystalling propylene speed, crystal structure is imperfect and cause easy warpage, yielding, the defect that rigidity is not enough, have employed structure, the discrepant fiberglass reinforced system collocation of diameter, and under efficient Interfacial compatibilization and quick crystallization nucleation assosting effect, the biphase enhancing system of organic and inorganic that common structure is evenly distributed, interfacial adhesion is good。The buckling deformations of the PP composite material of gained relatively traditional material reduces by 30%～60%, especially the fiberglass reinforced system performance of low content is more prominent, material stiffness index such as bending strength, bending modulus promote 30% on year-on-year basis, Material shrinkage rate is lower simultaneously, high and low temperature environment is provided with the dimensional stability of excellence, is a kind of good stability of the dimension, the dedicated modified material of automobile large-sized structural parts that rigidity is high。
Detailed description of the invention
Below by specific embodiment, the present invention is described further, and described embodiment is merely to illustrate the present invention rather than limitation of the present invention。
The embodiment of the present invention is raw materials used:
PP-1: homo-polypropylene, crystallinity Xc >=65%, Korea S PolyMirae, melt index MFR is 12g/10min (230 DEG C, 2.16Kg)。
PP-2: homo-polypropylene, crystallinity Xc >=60%, the north Hua Jin, melt index MFR are 5g/10min (230 DEG C, 2.16Kg)。
Chopped glass fiber-1:ECS-305H, diameter is 13um, chopped length 4.5mm, Chongqing glass CPIC。
Chopped glass fiber-2:SS-10-420, powdery glass, chopped length 0.3mm, diameter 11 microns, Japan of Japan textile company。
Chopped glass fiber-3:CSG3PL-820, opposite sex glass, opposite sex ratio is 2, diameter 13um, chopped length 3mm, Japan of Japan textile company。
Interfacial compatibilizer: maleic anhydride inoculated polypropylene CMG-5001, the liter new material company limited of Nantong day, test chemical percent grafting is 0.8%。
Crystalling propylene nucleator-1:TMA-5, nucleator in organic phosphate class, Shanxi chemical institute。
Crystalling propylene nucleator-2:PA6, viscosity 2.45, Ningbo Heng Run group；
Crystalling propylene nucleator-3:WBG-II, terres rares nucleator, the bright woods in Guangdong is taken in the fresh material Science and Technology Co., Ltd.。
Nano functional master batch: M2005, nanometer silicon carbide fiber strengthens master batch, Shanghai Chao Wei nanosecond science and technology company limited。
Properties of product are tested:
Tensile property: undertaken by ISO527-2 standard, test rate is 5mm/min。
Bending property: undertaken by IS178 standard, span is 64mm, and test rate is 2mm/min。
Impact property: carry out on impact tester for simple supported beam by ISO179-1 standard, batten breach is A type。
Warpage performance test: preparation is of a size of the model of 355 × 70 × 3.2 on injection machine, is fixed in plane by one section, the test other end is in the difference in height (cm) of planar diameter。
Shrinkage factor is tested: testing by ISO294-4 standard, standard jig is 210 × 140 × 3.2mm, and test perpendicular flow direction is tested respectively。
Linear expansion coefficient CLTE tests: carry out on TMA-600 instrument, and test interval is-30 DEG C～120 DEG C, and heating rate is 1 DEG C/min, the data in test perpendicular flow direction。
Embodiment 1
Weigh crystalling propylene nucleator, nano functional master batch according to the data of embodiment 1 in table 1, be uniformly mixed, can be prepared by micro structure and adjust auxiliary agent 1。
Embodiment 2
Weigh crystalling propylene nucleator, nano functional master batch according to the data of embodiment 2 in table 1, be uniformly mixed, can be prepared by micro structure and adjust auxiliary agent 2。
Embodiment 3
Weigh crystalling propylene nucleator, nano functional master batch according to the data of embodiment 3 in table 1, be uniformly mixed, can be prepared by micro structure and adjust auxiliary agent 3。
Embodiment 4
Weigh crystalling propylene nucleator, nano functional master batch according to the data of embodiment 4 in table 1, be uniformly mixed, can be prepared by micro structure and adjust auxiliary agent 4。
Table 1 micro structure adjusts the formula table (unit: gram) of auxiliary agent
Embodiment 5
Each component is weighed by embodiment 5 data shown in table 2, chopped glass fiber is strengthened each component mix homogeneously in high-speed mixer beyond system, put in the main feeding bin of double screw extruder, chopped glass fiber strengthens system and puts into side feeding bin, extruder screw diameter is 35mm, draw ratio L/D is 40, engine speed is set as 200 revs/min, each zone temperature (exporting from charge door to head) of main barrel is set as: 60 DEG C, 180 DEG C, 200 DEG C, 210 DEG C, 220 DEG C, 220 DEG C, 220 DEG C, through melt extruding, cooling, pelletize, product is obtained after the operations such as drying and processing。
Embodiment 6
Each component is weighed by embodiment 6 data shown in table 2, chopped glass fiber is strengthened each component mix homogeneously in high-speed mixer beyond system, put in the main feeding bin of double screw extruder, chopped glass fiber strengthens system and puts into side feeding bin, extruder screw diameter is 35mm, draw ratio L/D is 40, engine speed is set as 200 revs/min, each zone temperature (exporting from charge door to head) of main barrel is set as: 60 DEG C, 180 DEG C, 200 DEG C, 210 DEG C, 220 DEG C, 220 DEG C, 220 DEG C, through melt extruding, cooling, pelletize, product is obtained after the operations such as drying and processing。
Embodiment 7
Each component is weighed by embodiment 7 data shown in table 2, chopped glass fiber is strengthened each component mix homogeneously in high-speed mixer beyond system, put in the main feeding bin of double screw extruder, chopped glass fiber strengthens system and puts into side feeding bin, extruder screw diameter is 35mm, draw ratio L/D is 40, engine speed is set as 200 revs/min, each zone temperature (exporting from charge door to head) of main barrel is set as: 60 DEG C, 180 DEG C, 200 DEG C, 210 DEG C, 220 DEG C, 220 DEG C, 220 DEG C, through melt extruding, cooling, pelletize, product is obtained after the operations such as drying and processing。
Embodiment 8
Each component is weighed by embodiment 8 data shown in table 2, chopped glass fiber is strengthened each component mix homogeneously in high-speed mixer beyond system, put in the main feeding bin of double screw extruder, chopped glass fiber strengthens system and puts into side feeding bin, extruder screw diameter is 35mm, draw ratio L/D is 40, engine speed is set as 200 revs/min, each zone temperature (exporting from charge door to head) of main barrel is set as: 60 DEG C, 180 DEG C, 200 DEG C, 210 DEG C, 220 DEG C, 220 DEG C, 220 DEG C, through melt extruding, cooling, pelletize, product is obtained after the operations such as drying and processing。
The low warpage of table 2, high-dimensional stability, high rigidity the formula table (unit: gram) of glass fiber reinforced polypropylene composite material
Comparative example 1
Weigh 75 grams of PP-1, 20 grams of chopped glass fibers-1, 5 grams of interfacial compatibilizers, by each component mix homogeneously in high-speed mixer beyond glass, put in the main feeding bin of double screw extruder, chopped glass fiber is put in lateral feeding bin, the screw diameter of extruder is 35mm, draw ratio L/D is 40, engine speed is set as 200 revs/min, each zone temperature (exporting from charge door to head) of main barrel is set as: 60 DEG C, 160 DEG C, 190 DEG C, 195 DEG C, 200 DEG C, 210 DEG C, 210 DEG C, through melt extruding, cooling, pelletize, product is obtained after the operations such as drying and processing。
Comparative example 2
Commercially available front end frame of automobile Long Glass Fiber Reinforced PP Composite, glass fiber content 30%, the trade mark: GD301FEC, Borouge plastics (Shanghai) Co., Ltd. provide, as a comparison case 2。
The low warpage of table 3, high-dimensional stability, high rigidity the performance test results of glass fiber reinforced polypropylene composite material
Performance test from each embodiment shown in table 3 and comparative example, adopt heretofore described difformity, the chopped glass fiber of characteristic strengthens system, can obviously improve the buckling deformation amount of composite, without substantially reducing the mechanical performance index of composite。Each item data of comparative example 1,2 and comparative example 1 is known, under the equal conditions of 20% glass fiber content, embodiment 1,2 buckling deformation, shrinkage factor and linear expansion coefficient CLTE are considerably lower, and main inflexible target such as bending strength and modulus, impact strength etc. all substantially remain in very close level。The mechanical property of embodiment 1 relatively embodiment 2 is higher, then show that the result of use of opposite sex glass is better than powdery glass。Along with glass fiber content is promoted to 30% (embodiment 3), the gap between every mechanical performance data and the long glass fiber reinforced product of composite is obviously reduced, and portion size performance indications such as shrinkage factor, CLTE is better on the contrary。And glass fiber content is when being promoted to 50% further, the buckling deformation amount of composite can ignore (3mm) substantially, it was shown that the fibre reinforcement cording in composite is for ideal distribution situation。Certainly, above-mentioned performance improvement can not ignore micro structure regulator, especially effect of crystalling propylene nucleator, contrast, the resultant effect of terres rares crystallization nucleating agent is better, and crystalline rate when molding crystallisation by cooling of the polypropylene matrix of highly crystalline performance, crystal regularity and integrated degree are had better regulating effect。
In general, the novel short glass fiber RPP product that the present invention describes is to strengthen on product basis at traditional short glass fiber, impart the characteristic such as that resist warping of part roving glass fiber product, good stability of the dimension, high rigidity etc., but short glass fiber product can production better, materials processing is lower in cost, product Preliminary Applications is in the front end frame project of certain vehicle popular, show that this product possesses the good market competitiveness and application prospect, the cooperation that energy is fabulous, advance the light-weighted design concept of the advanced car industry of current Ge great main engine plants " to mould Dai Gang ", for front end frame, skylight sash, instrument board framework, the large scale structure products such as engine bottom guard plate or functor are in design, selection, add the alternative that how a kind of offer in man-hour is, thus creating good social benefit and market value。
The ultimate principle of the present invention, principal character and advantages of the present invention have more than been shown and described。Skilled person will appreciate that of the industry; the present invention is not restricted to the described embodiments; described in above-described embodiment and description is that principles of the invention is described; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements both fall within the claimed scope of the invention。Claimed scope is defined by appending claims and equivalent thereof。
Claims (7)
1. a glass fiber reinforced polypropylene composite material, it is characterised in that include the raw material of following weight portion:
Described micro structure adjusts auxiliary agent and is made up of crystalling propylene nucleator and nano functional master batch；Wherein, crystalling propylene nucleator is 0.2～1 weight portion, and nano functional master batch is 0.3-2 weight portion。
2. a kind of glass fiber reinforced polypropylene composite material according to claim 1, it is characterised in that: described polypropylene is HOPP, 230 DEG C, under the test condition of 2.16Kg, its melt index is 2～20g/min。
3. a kind of glass fiber reinforced polypropylene composite material according to claim 1, it is characterized in that: described short glass fiber strengthen system in the rounded short glass fiber in cross section, oval short glass fiber, triangle short glass fiber one or more, fibre diameter is 7～13um, and chopped length is 3～4.5um。
4. a kind of glass fiber reinforced polypropylene composite material according to claim 1, it is characterised in that: described interfacial compatibilizer is maleic anhydride inoculated polypropylene PP-MAH, and percent grafting is 1.0%。
5. a kind of glass fiber reinforced polypropylene composite material according to claim 1, it is characterised in that: described crystalling propylene nucleator in polypropylene 6, nucleator in organic phosphate class, aromatic amine nucleator, rare earth chemistry thing one or more。
6. a kind of glass fiber reinforced polypropylene composite material according to claim 1, it is characterized in that: described nano functional master batch is strengthen particle with the polypropylene PP 400-800nm nano-scale dispersion nanoscale inorganic mineral being carrier, and its solids content is 5～20wt%。
7. the preparation method of a kind of glass fiber reinforced polypropylene composite material prepared described in claim 1, it is characterised in that said method comprising the steps of:
(1) first weigh polypropylene, interfacial compatibilizer, micro structure adjustment auxiliary agent, mix homogeneously by following weight portion, obtain mixed material, then weigh short glass fiber and strengthen system；
Described micro structure adjusts auxiliary agent and is made up of crystalling propylene nucleator and nano functional master batch；Wherein, crystalling propylene nucleator is 0.2～1 weight portion, and nano functional master batch is 0.3-2 weight portion；
(2) by dried for above-mentioned mixed material, it is placed in the main feeding bin of meshing co rotating twin screw extrusion, join in the machine barrel of extruder through feed screw, short glass fiber is strengthened system and joins extruder from side spout, extruder screw diameter is 35mm, draw ratio L/D is 40, each zone temperature that main barrel exports from charge door to head is set as: 60 DEG C, 180 DEG C, 200 DEG C, 210 DEG C, 220 DEG C, 220 DEG C, 220 DEG C, engine speed is 200 revs/min, through melt extruding, cooling, pelletize, drying and processing, prepare glass fiber reinforced polypropylene composite material。
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106313484A (en) * | 2016-08-23 | 2017-01-11 | 无锡吉兴汽车声学部件科技有限公司 | Production method for bottom protection plate of automobile engine |
| CN107641255A (en) * | 2017-10-19 | 2018-01-30 | 中广核俊尔（上海）新材料有限公司 | Glass fiber reinforced polypropylene composite material and preparation method thereof |
| CN108070140A (en) * | 2016-11-09 | 2018-05-25 | 神华集团有限责任公司 | Fibre modifier and modified fibre and its preparation method and application and PP composite material and preparation method thereof |
| CN108707279A (en) * | 2018-05-18 | 2018-10-26 | 中广核俊尔（上海）新材料有限公司 | A kind of eutectic lapping defect exempts from spray coating polypropylene composite material and preparation method without current mark |
| CN109262883A (en) * | 2018-07-06 | 2019-01-25 | 武汉金发科技有限公司 | A kind of preparation method of glass fiber reinforced polypropylene composite material |
| CN109890848A (en) * | 2016-11-11 | 2019-06-14 | 巴塞尔聚烯烃意大利有限公司 | Polypropene composition containing fiber glass packing |
| CN110878159A (en) * | 2019-11-14 | 2020-03-13 | 中广核俊尔（上海）新材料有限公司 | Low-density polypropylene composite material and preparation method thereof |
| CN112795099A (en) * | 2021-01-18 | 2021-05-14 | 会通新材料股份有限公司 | Polypropylene reinforcing material for water purifier integrated water circuit board and preparation method thereof |
| CN113021836A (en) * | 2021-02-22 | 2021-06-25 | 浙江普利特新材料有限公司 | Method for quickly debugging fiber content in small-scale granulation of fiber reinforced composite material |
| CN113862814A (en) * | 2021-11-11 | 2021-12-31 | 东华大学 | Superfine chopped glass fiber reinforced polypropylene blended melt-spun composite fiber material and preparation method thereof |
| CN114835975A (en) * | 2022-03-25 | 2022-08-02 | 成都金发科技新材料有限公司 | Low-warpage glass fiber reinforced polypropylene composite material and preparation method and application thereof |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106313484A (en) * | 2016-08-23 | 2017-01-11 | 无锡吉兴汽车声学部件科技有限公司 | Production method for bottom protection plate of automobile engine |
| CN108070140A (en) * | 2016-11-09 | 2018-05-25 | 神华集团有限责任公司 | Fibre modifier and modified fibre and its preparation method and application and PP composite material and preparation method thereof |
| CN109890848B (en) * | 2016-11-11 | 2020-05-05 | 巴塞尔聚烯烃意大利有限公司 | Polypropylene composition containing glass fibre filler |
| CN109890848A (en) * | 2016-11-11 | 2019-06-14 | 巴塞尔聚烯烃意大利有限公司 | Polypropene composition containing fiber glass packing |
| CN107641255A (en) * | 2017-10-19 | 2018-01-30 | 中广核俊尔（上海）新材料有限公司 | Glass fiber reinforced polypropylene composite material and preparation method thereof |
| CN107641255B (en) * | 2017-10-19 | 2020-08-25 | 中广核俊尔（上海）新材料有限公司 | Glass fiber reinforced polypropylene composite material and preparation method thereof |
| CN108707279B (en) * | 2018-05-18 | 2021-01-19 | 中广核俊尔（上海）新材料有限公司 | Low-melting-mark flow-mark-free spraying-free polypropylene composite material and preparation method thereof |
| CN108707279A (en) * | 2018-05-18 | 2018-10-26 | 中广核俊尔（上海）新材料有限公司 | A kind of eutectic lapping defect exempts from spray coating polypropylene composite material and preparation method without current mark |
| CN109262883A (en) * | 2018-07-06 | 2019-01-25 | 武汉金发科技有限公司 | A kind of preparation method of glass fiber reinforced polypropylene composite material |
| CN110878159A (en) * | 2019-11-14 | 2020-03-13 | 中广核俊尔（上海）新材料有限公司 | Low-density polypropylene composite material and preparation method thereof |
| CN112795099A (en) * | 2021-01-18 | 2021-05-14 | 会通新材料股份有限公司 | Polypropylene reinforcing material for water purifier integrated water circuit board and preparation method thereof |
| CN112795099B (en) * | 2021-01-18 | 2022-03-01 | 会通新材料股份有限公司 | Polypropylene reinforcing material for water purifier integrated water circuit board and preparation method thereof |
| CN113021836A (en) * | 2021-02-22 | 2021-06-25 | 浙江普利特新材料有限公司 | Method for quickly debugging fiber content in small-scale granulation of fiber reinforced composite material |
| CN113862814A (en) * | 2021-11-11 | 2021-12-31 | 东华大学 | Superfine chopped glass fiber reinforced polypropylene blended melt-spun composite fiber material and preparation method thereof |
| CN114835975A (en) * | 2022-03-25 | 2022-08-02 | 成都金发科技新材料有限公司 | Low-warpage glass fiber reinforced polypropylene composite material and preparation method and application thereof |
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