CN103113667B - There is continuous long glass fiber reinforced profax/nylon composite materials and the preparation technology thereof of core structure - Google Patents
There is continuous long glass fiber reinforced profax/nylon composite materials and the preparation technology thereof of core structure Download PDFInfo
- Publication number
- CN103113667B CN103113667B CN201210574838.2A CN201210574838A CN103113667B CN 103113667 B CN103113667 B CN 103113667B CN 201210574838 A CN201210574838 A CN 201210574838A CN 103113667 B CN103113667 B CN 103113667B
- Authority
- CN
- China
- Prior art keywords
- long glass
- nylon
- resin
- glass fiber
- fiber reinforced
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Reinforced Plastic Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of continuous long glass fiber reinforced profax/nylon composite materials and preparation technology thereof with core structure, using acrylic resin and nylon resin as matrix resin, by weight, there is following formula: matrix resin 38～78wt%; Compatilizer 2～10wt%; Heat stabilizer 0～2wt%; Long glass fibres 20～50wt%; Wherein, the weight ratio of described acrylic resin and described nylon resin is 1～9:1. The present invention adopts the production technology of high and low temperature melt immersion slot series connection, the final inside that forms is the alkali-free long glass fibres master batch infiltrating through nylon resin, the outside composite for polypropylene sandwich layer, abundant dispersion can be realized in the inside and outside of this composite in later stage product injection moulding process, efficiently solves nylon and Graft Polypropylene premature reaction under the condition of high temperature and causes melt viscosity to raise being unfavorable for the defect infiltrating. In addition, this composite also has the excellent properties such as heat resistance, high rigidity, has met the Production requirement of auto parts and components.<!--1-->
Description
Technical field
The present invention relates to a kind of processing technique field of continuous long glass fiber reinforced profax/nylon composite materials, outstandingIt relates to a kind of continuous long glass fiber reinforced profax/nylon composite materials and preparation technology thereof with core structure.
Background technology
Along with the development of auto industry, long glass fiber reinforced polypropylene due to its excellent dimensional stability, resistance to creep,Resistance to dynamic fatigue, high rigidity, low-density, the performance advantage such as do not absorb water, and the knot of complex parts structure one step injection mo(u)ldingStructure module design advantage, the superiority of effectiveness of general-purpose plastics and the recuperability of thermoplastic, long glass fibres strengthens poly-Propylene has replaced the environmental protection such as SMC, BMC and has reclaimed GMT moulding material, the valency of thermosets, complex forming technology graduallyPA, PBT, PC/ABS, SMA thermoplastic engineering plastic and highdensity metal material that lattice are high, be widely used in automobileThe production of parts, has made significant contribution to the development of automotive light weight technology technology.
But polypropylene material is owing to being general-purpose plastics, and melt temperature only has 160-170 DEG C, use continuously long glass fibersAfter dimension strengthens, its heat resistance and mechanical performance are limit by fusing point, cannot further improve to meet auto parts and components particularlyThe further develop requirement of engine circumferential component to material.
The drawback of bringing in order to solve polypropylene material in this year, is added a certain proportion of nylon in polypropylene material,Nylon material belongs to dystectic engineering plastics, can be good at meeting demand to fusion point, when at continuous long glass fiberIn RPP (LFTPP) factory formula, add a certain amount of nylon (PA), thereby can realize the high performance of LFTPP,But owing to being the effect of impregnation of guarantee PP to continuous long glass fiber in LFTPP production process, the melt temperature of PP is established conventionallyVery high (>=300 DEG C) put, under high temperature PP graft compatilizer easily and PA react and cause melt viscosity rising, unfavorableInfiltration in melt to long glass fibres, Yin Nilong and polyacrylic composite character are not very good.
Summary of the invention
In order to overcome above-mentioned defect, the invention provides a kind of continuous long glass fiber with core structure and strengthen poly-thirdAlkene/nylon composite materials, this composite not only has low water absorption, high fluidity, but also has excellent heat resistance, heightRigidity, HI high impact, high-dimensional stability, creep resistant and good thermal-oxidative aging property, well met zero, automobileThe Production requirement of part.
The present invention for the technical scheme that solves its technical problem and adopt is: a kind of continuous long glass with core structureGlass TRPP/nylon composite materials, using acrylic resin and nylon resin as matrix resin, percentage contains by weightAmount meter, has following formula: matrix resin 38～78wt%; Compatilizer 2～10wt%; Heat stabilizer 0～2wt%; Long glassFiber 20～50wt%;
Wherein, the weight ratio of described acrylic resin and described nylon resin is 1～9:1.
As a further improvement on the present invention, described nylon resin is the one in nylon 6 resin and nylon 66 resin.
As a further improvement on the present invention, the viscosity of described nylon resin is 2.0～3.0.
As a further improvement on the present invention, the melt flow rate (MFR) of described acrylic resin is 10～1000g/10min.
As a further improvement on the present invention, described heat stabilizer be phenols, amine, phosphorous acid esters, half Hinered phenols,Any one in compound class and the calixarene kind of acryloyl group functional group and monothioester or multiple mixture.
As a further improvement on the present invention, described compatilizer is polar monomer graft polymer, this polar monomer graftThe matrix of polymer is the copolymer, poly-of polyethylene, polypropylene, ethene-α-ethylene-octene copolymer, styrene and butadieneEthene-polystyrene-poly propylene terpolymers, ethylene-propylene-butadiene terpolymer, vinyl-acrylate copolymerAnd any one or two kinds of mixtures in ethylene-acrylate-glycidyl methacrylate copolymer; This polar monomerThe polar monomer of graft polymers be in maleic anhydride and analog and acrylicacidandesters analog derivative any one orMultiple mixture.
As a further improvement on the present invention, described long glass fibres is alkali-free long glass fibres.
The present invention also provides a kind of described continuous long glass fiber reinforced profax/nylon with core structure multipleThe preparation technology of condensation material, described technique comprises the steps:
(1) nylon resin by recipe ratio is fed in single screw extrusion machine, and logical after single screw extrusion machine plasticizingCross a mouthful mould and be transported in high-temperature fusant immersion slot, the temperature in this high-temperature fusant immersion slot is 260～360 DEG C;
(2) will jointly be fed in single screw extrusion machine by the acrylic resin of recipe ratio, heat stabilizer and compatilizer, andAfter single screw extrusion machine plasticizing, be transported in low-temperature melt immersion slot by mouth mould, the temperature in this low-temperature melt immersion slot is180～220℃；
(3) long glass fibres moved through successively with the hauling speed of 20～100m/min and immerse the high temperature in step (1)In low-temperature melt immersion slot in melt immersion slot and step (2), after long glass fibres complete wetting, utilize pelleter to connectContinuous long glass fibres cuts into the particle that length is 12mm.
The invention has the beneficial effects as follows: the present invention adopts the production of high-temperature fusant immersion slot and the series connection of low-temperature melt immersion slotTechnique first utilizes nylon resin once to infiltrate alkali-free long glass fibres in high-temperature fusant immersion slot, and thenIn low-temperature melt immersion slot, utilize acrylic resin to carry out secondary infiltration to alkali-free long glass fibres, finally forming an inside is warpAlkali-free long glass fibres master batch, outside that nylon resin infiltrates are the composite of polypropylene sandwich layer, inside and outside this compositePortion can realize abundant dispersion in later stage product injection moulding process, thereby efficiently solves nylon and polypropylene grafted under the condition of high temperatureThing premature reaction causes melt viscosity to raise and is unfavorable for the defect of infiltration. In addition, this composite also has low water absorption, Gao LiuHeat resistance, high rigidity, HI high impact, high-dimensional stability, creep resistant and the good thermal-oxidative aging property of moving property, excellence,Well meet the Production requirement of auto parts and components.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in further details, but the invention is not restricted to these enforcementExample.
When embodiment 1～4 provides nylon resin described in the present invention to adopt nylon 6 resin, preparation one has sandwich layerThe method of the continuous long glass fiber reinforced profax/nylon 6 composite material of structure.
Embodiment 1～4 all accounts for continuous long glass fiber reinforced profax/nylon 6 composite woods according to the raw material described in table 1The process conditions of process unit in the weight content umber of material and table 2, prepare continuous long glass fiber according to following steps and increaseStrong PP/PA 6 composites:
(1) first will be fed in the single screw extrusion machine of draw ratio 20:1 by the nylon 6 resin of recipe ratio, and through single spiral shellAfter the plasticizing of bar extruder, be transported in high-temperature fusant immersion slot by mouth mould, the length of this high-temperature fusant immersion slot is 2m, and shouldTemperature in high-temperature fusant immersion slot is 260～360 DEG C;
(2) then will jointly be fed into draw ratio 20:1's by the acrylic resin of recipe ratio, heat stabilizer and compatilizerIn single screw extrusion machine, and be transported in low-temperature melt immersion slot by mouth mould after single screw extrusion machine plasticizing, this low temperature is moltenBody immersion slot length is 1m, and temperature in this low-temperature melt immersion slot is 180～220 DEG C;
(3) finally long glass fibres moved through successively with the hauling speed of 20～100m/min and immerse in step (1)In low-temperature melt immersion slot in high-temperature fusant immersion slot and step (2), after long glass fibres complete wetting, utilize pelleterContinuous long glass fiber is cut into the particle that length is 12mm.
Table 1: the component of continuous long glass fiber reinforced profax/nylon 6 composite material embodiment
Unit: wt%
Table 2: the process conditions of process unit
When embodiment 5～8 provides nylon resin described in the present invention to adopt nylon 66 resin, preparation one has sandwich layerThe method of the continuous long glass fiber reinforced profax/nylon 66 composite material of structure.
It is compound that embodiment 5～8 all accounts for continuous long glass fiber reinforced profax/nylon 66 according to the raw material described in table 3In the weight content umber of material and table 4, the process conditions of process unit, prepare continuous long glass fiber according to following stepsRPP/nylon 66 composite material:
(1) first will be fed in the single screw extrusion machine of draw ratio 20:1 by the nylon 66 resin of recipe ratio, and through listAfter screw extruder plasticizing, be transported in high-temperature fusant immersion slot by mouth mould, the length of this high-temperature fusant immersion slot is 2m, andTemperature in this high-temperature fusant immersion slot is 260～360 DEG C;
(2) then will jointly be fed into draw ratio 20:1's by the acrylic resin of recipe ratio, heat stabilizer and compatilizerIn single screw extrusion machine, and be transported in low-temperature melt immersion slot by mouth mould after single screw extrusion machine plasticizing, this low temperature is moltenBody immersion slot length is 1m, and temperature in this low-temperature melt immersion slot is 180～220 DEG C;
(3) finally long glass fibres moved through successively with the hauling speed of 20～100m/min and immerse in step (1)In low-temperature melt immersion slot in high-temperature fusant immersion slot and step (2), after long glass fibres complete wetting, utilize pelleterContinuous long glass fiber is cut into the particle that length is 12mm.
Table 3: the component of continuous long glass fiber reinforced profax/nylon 66 composite material embodiment
Unit: wt%
Table 4: the process conditions of process unit
According to professional standard, respectively to the above-mentioned continuous long glass fiber reinforced profax with core structure making/Nylon 6 composite material and the continuous long glass fiber reinforced profax/nylon 66 composite material with core structure carry out multinomialBasic physical properties test, gets its mean value. Test result is as follows:
Table 5: the basic physical properties with the continuous long glass fiber reinforced profax/nylon 6 composite material of core structure is surveyedTest result
Table 6: the basic physical properties with the continuous long glass fiber reinforced profax/nylon 66 composite material of core structure is surveyedTest result
As seen from Table 5, the continuous long glass fiber reinforced profax/nylon with core structure 6 that the present invention makes is multipleWater absorption rate≤0.5% of condensation material, spiral linear flow length >=800mm, hot strength >=100MPa, stretch modulus >=5500MPa, lacksMouth impact strength >=25KJ/m2, heat distortion temperature (HDT) >=160 DEG C, thermo-oxidative ageing after-drawing strength retention >=95%;
As seen from Table 6, the continuous long glass fiber reinforced profax/nylon with core structure 66 that the present invention makes is multipleWater absorption rate≤0.5% of condensation material, spiral linear flow length >=800mm, hot strength >=110MPa, stretch modulus >=6000MPa, lacksMouth impact strength >=20KJ/m2, heat distortion temperature (HDT) >=165 DEG C, thermo-oxidative ageing after-drawing strength retention >=95%.
Therefore,, compared to professional standard, the composite that the present invention makes has excellent physical property. Above to thisBright being described in detail, its object is to allow those of ordinary skill in the art can understand content of the present invention in addition realExecute, can not limit the scope of the invention with this, the equivalence that all Spirit Essences according to the present invention are done changes or modifies,All should be encompassed in protection scope of the present invention.
Claims (7)
1. there is continuous long glass fiber reinforced profax/nylon composite materials of core structure, with acrylic resin andNylon resin, as matrix resin, is characterized in that: percentage composition meter by weight, has following formula: matrix resin 38～78wt%; Compatilizer 2～10wt%; Heat stabilizer 0.5～2wt%; Long glass fibres 20～50wt%; Wherein, described poly-thirdThe weight ratio of olefine resin and described nylon resin is 1～9:1, and each component percentage composition sum is 100%;
The preparation technology of the described continuous long glass fiber reinforced profax/nylon composite materials with core structure, comprisesFollowing steps:
(1) nylon resin by recipe ratio is fed in single screw extrusion machine, and passes through mouth after single screw extrusion machine plasticizingMould is transported in high-temperature fusant immersion slot, and the temperature in this high-temperature fusant immersion slot is 260～360 DEG C;
(2) will jointly be fed in single screw extrusion machine by the acrylic resin of recipe ratio, heat stabilizer and compatilizer, and through listAfter screw extruder plasticizing, be transported in low-temperature melt immersion slot by mouth mould, the temperature in this low-temperature melt immersion slot is 180～220℃；
(3) long glass fibres moved through successively with the hauling speed of 20～100m/min and immerse the high-temperature fusant in step (1)In low-temperature melt immersion slot in immersion slot and step (2), after long glass fibres complete wetting, utilize the pelleter will be long continuouslyGlass fibre cuts into the particle that length is 12mm.
2. continuous long glass fiber reinforced profax/the nylon composite materials with core structure according to claim 1,It is characterized in that: described nylon resin is the one in nylon 6 resin and nylon 66 resin.
3. continuous long glass fiber reinforced profax/the nylon composite materials with core structure according to claim 1,It is characterized in that: the viscosity of described nylon resin is 2.0～3.0.
4. continuous long glass fiber reinforced profax/the nylon composite materials with core structure according to claim 1,It is characterized in that: the melt flow rate (MFR) of described acrylic resin is 10～1000g/10min.
5. continuous long glass fiber reinforced profax/the nylon composite materials with core structure according to claim 1,It is characterized in that: described heat stabilizer is the compound of phenols, amine, phosphorous acid esters, acryloyl group functional group and monothioesterAny one in class and calixarene kind or multiple mixture.
6. continuous long glass fiber reinforced profax/the nylon composite materials with core structure according to claim 1,It is characterized in that: described compatilizer is polar monomer graft polymer, the matrix of this polar monomer graft polymer be polyethylene,The copolymer of polypropylene, styrene and butadiene, polyethylene-polystyrene-polypropylene terpolymer, ethylene-propylene-Ding bis-In alkene terpolymer, vinyl-acrylate copolymer and ethylene-acrylate-glycidyl methacrylate copolymerAny one or two kinds of mixtures; The polar monomer of this polar monomer graft polymer is maleic anhydride and analog and thirdAny one in olefin(e) acid and ester derivative thereof or multiple mixture.
7. continuous long glass fiber reinforced profax/the nylon composite materials with core structure according to claim 1,It is characterized in that: described long glass fibres is alkali-free long glass fibres.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210574838.2A CN103113667B (en) | 2012-12-26 | 2012-12-26 | There is continuous long glass fiber reinforced profax/nylon composite materials and the preparation technology thereof of core structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210574838.2A CN103113667B (en) | 2012-12-26 | 2012-12-26 | There is continuous long glass fiber reinforced profax/nylon composite materials and the preparation technology thereof of core structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103113667A CN103113667A (en) | 2013-05-22 |
| CN103113667B true CN103113667B (en) | 2016-05-18 |
Family
ID=48412092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210574838.2A Active CN103113667B (en) | 2012-12-26 | 2012-12-26 | There is continuous long glass fiber reinforced profax/nylon composite materials and the preparation technology thereof of core structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103113667B (en) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103980699B (en) * | 2014-06-03 | 2016-01-20 | 山东瀚氏汽车零部件有限公司 | Automotive upholstery anti-aging high temperature resistant PA6/PP alloy and preparation method |
| CN106273556B (en) * | 2015-05-26 | 2019-04-09 | 句容市百事特复合材料有限公司 | The preparation process of GFRTP material strip and the thermoplastic profiles of staple fiber composite strengthening |
| CN106627789B (en) * | 2015-11-03 | 2019-04-19 | 株洲时代新材料科技股份有限公司 | Fiber reinforced thermolplastic composite material prepares the application in auto parts and components in molding |
| CN105584063B (en) * | 2015-12-28 | 2019-05-07 | 武汉泰宇汽车零部件有限公司 | Textile type engine lower guard board manufacture craft |
| CN105479914B (en) * | 2015-12-28 | 2018-06-26 | 武汉泰宇汽车零部件有限公司 | A kind of textile type engine bonnet preparation method |
| CN107200928A (en) * | 2017-07-24 | 2017-09-26 | 江苏莘翔机电有限公司 | A kind of glass fiber reinforced polypropylene nylon composite materials and preparation method thereof |
| CN108727815A (en) * | 2018-06-26 | 2018-11-02 | 长春智享优创科技咨询有限公司 | High temperature resistant nylon composite material and preparation method thereof |
| CN109666216A (en) * | 2018-12-17 | 2019-04-23 | 会通新材料(上海)有限公司 | A kind of long glass fiber-reinforced polypropylene/polyamide alloy material and preparation method thereof of high-intensitive, low smell |
| CN114437456B (en) * | 2020-10-30 | 2024-02-13 | 中国石油化工股份有限公司 | Thermoplastic composite material and preparation method and application thereof |
| CN116063782A (en) * | 2021-10-30 | 2023-05-05 | 中国石油化工股份有限公司 | Thermoplastic composite material with improved electrical insulation properties, and preparation method and application thereof |
| CN116063776A (en) * | 2021-10-30 | 2023-05-05 | 中国石油化工股份有限公司 | Thermoplastic composite material with low volatile organic compound content, and preparation method and application thereof |
| CN116063780A (en) * | 2021-10-30 | 2023-05-05 | 中国石油化工股份有限公司 | Thermoplastic conductive composite material and preparation method and application thereof |
| CN116063775A (en) * | 2021-10-30 | 2023-05-05 | 中国石油化工股份有限公司 | Thermo-plastic composite material resistant to thermo-oxidative aging, preparation method and application thereof |
| CN116063784A (en) * | 2021-10-30 | 2023-05-05 | 中国石油化工股份有限公司 | Electrically insulating thermoplastic composite material containing silane modified polypropylene grafts, method for the production and use thereof |
| CN116063783A (en) * | 2021-10-30 | 2023-05-05 | 中国石油化工股份有限公司 | Thermoplastic composite sound-absorbing composite material and preparation method and application thereof |
| CN116063777A (en) * | 2021-10-30 | 2023-05-05 | 中国石油化工股份有限公司 | Photo-aging-resistant thermoplastic composite material and preparation method and application thereof |
| CN116063787A (en) * | 2021-10-30 | 2023-05-05 | 中国石油化工股份有限公司 | Stress whitening resistant thermoplastic composite material and preparation method and application thereof |
| CN116063778A (en) * | 2021-10-30 | 2023-05-05 | 中国石油化工股份有限公司 | Electrically insulating thermoplastic composite material with core layer structure, and preparation method and application thereof |
| CN116063785A (en) * | 2021-10-30 | 2023-05-05 | 中国石油化工股份有限公司 | Electric insulation thermoplastic composite material containing aromatic olefin grafted modified polypropylene, and preparation method and application thereof |
| CN116063779A (en) * | 2021-10-30 | 2023-05-05 | 中国石油化工股份有限公司 | Electric insulation thermoplastic composite material and preparation method and application thereof |
| CN116063781A (en) * | 2021-10-30 | 2023-05-05 | 中国石油化工股份有限公司 | Heat-conducting thermoplastic composite material and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101195707A (en) * | 2007-12-25 | 2008-06-11 | 上海金发科技发展有限公司 | Glass fiber-reinforced nylon 6-polypropylene alloy material |
| CN102010590A (en) * | 2010-12-23 | 2011-04-13 | 南京聚隆科技股份有限公司 | Long glass fibre reinforced nylon material and preparing method thereof |
| CN102731905A (en) * | 2012-05-22 | 2012-10-17 | 宁波泛龙塑料新材料有限公司 | Long glass fiber reinforced modified polypropylene and preparation method thereof |
-
2012
- 2012-12-26 CN CN201210574838.2A patent/CN103113667B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101195707A (en) * | 2007-12-25 | 2008-06-11 | 上海金发科技发展有限公司 | Glass fiber-reinforced nylon 6-polypropylene alloy material |
| CN102010590A (en) * | 2010-12-23 | 2011-04-13 | 南京聚隆科技股份有限公司 | Long glass fibre reinforced nylon material and preparing method thereof |
| CN102731905A (en) * | 2012-05-22 | 2012-10-17 | 宁波泛龙塑料新材料有限公司 | Long glass fiber reinforced modified polypropylene and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103113667A (en) | 2013-05-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103113667B (en) | There is continuous long glass fiber reinforced profax/nylon composite materials and the preparation technology thereof of core structure | |
| CN107118437B (en) | Lower shrinkage, Long Glass Fiber Reinforced PP Composite of low warpage and its preparation method and application | |
| CN102816384B (en) | Glass fiber-reinforced polypropylene material with shallow shrinkage mark and low warpage as well as preparation method and application thereof | |
| CN103342858B (en) | A kind of short glass fiber reinforced polypropylene compound material and its preparation method and application | |
| CN103044912B (en) | Halogen-free flameproof continuous long glass fiber reinforced polyamide 66 composite material and preparation method thereof | |
| CN102140255B (en) | Hot-press type wood plastic composite for toy and preparation method thereof | |
| CN101787204B (en) | Low water absorption polyamide composite and preparation method thereof | |
| CN101580636B (en) | Warpage resistance nylon 6 composite material for vehicle air conditioning air door and preparation method thereof | |
| CN103497484B (en) | Gao Mo, high-strength, high heat-resisting polyformaldehyde composite material and preparation method thereof | |
| CN103849018A (en) | Rice hull ash/macromolecular composite material, preparation method and application thereof | |
| CN105623097A (en) | Nanometer-material-compounded long-glass-fiber-reinforced polypropylene material and preparing method thereof | |
| CN102516667A (en) | Halogen-free flame-retardant long glass fiber reinforced polypropylene material and preparation method thereof | |
| CN102010547A (en) | Mineral/long glass fiber reinforced polypropylene composite material and preparation method thereof | |
| CN109251413A (en) | A kind of high degree of impregnation Long Glass Fiber Reinforced PP Composite and preparation method thereof | |
| CN104098885A (en) | Glass-fiber reinforced polyphenylene oxide /polyamide alloy material and preparation method thereof | |
| CN105524398A (en) | ABS rapid prototyping material used for 3D printing, and preparation method thereof | |
| CN103173007A (en) | High-performance long-fiber-reinforced nylon composite material and preparation method thereof | |
| CN104448566A (en) | Long glass fiber-enhanced thermoplastic polypropylene composite material and prepration method thereof | |
| CN104910517A (en) | Bimodally-distributed glass fiber reinforced polypropylene composite material and preparation method thereof | |
| CN105566937A (en) | Fiberglass reinforced wood-plastic composite material and preparation method thereof | |
| CN104669636B (en) | A kind of preparation method of assorted fibre RPP high strength composite | |
| CN103030891A (en) | Long glass fiber-reinforced polypropylene composite material and preparation method thereof | |
| CN103709682B (en) | A kind of glass fiber reinforced polybutylene terephthalate material and preparation method thereof | |
| CN106009246A (en) | Organic fiber reinforced polypropylene composite material and LFT-D forming process thereof | |
| CN102276972A (en) | Polychloroprene/acrylonitrile butadiene styrene (PC/ABS) defective material recovery composition and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |