CN110054881A - High fluidity modification material of polycarbonate - Google Patents
High fluidity modification material of polycarbonate Download PDFInfo
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- CN110054881A CN110054881A CN201910246734.0A CN201910246734A CN110054881A CN 110054881 A CN110054881 A CN 110054881A CN 201910246734 A CN201910246734 A CN 201910246734A CN 110054881 A CN110054881 A CN 110054881A
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- polycarbonate
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- high fluidity
- drying
- modification material
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C5/00—Chairs of special materials
- A47C5/12—Chairs of special materials of plastics, with or without reinforcement
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/10—Transparent films; Clear coatings; Transparent materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention belongs to technical field of polymer materials, provide a kind of high fluidity modification material of polycarbonate.In parts by weight, it is made of following raw material: 60~80 parts of polycarbonate, 10~25 parts of polymethylpentene copolymers, 5~12 parts of acrylonitritrile-styrene resin, 6~15 parts of vinyl-vinyl acetate copolymer, 0.2~0.6 part of non-halogen organic flame retardants, 0.3~0.8 part of lubricant, 0.2~0.7 part of antioxidant, 0.2~1 part of ultraviolet absorbing agent.The present invention utmostly ensure that the high grade of transparency of material, simultaneously, the high fluidity, flexibility, the rigidity of scratch-resistant of material meet demand of the market to transparent plastic furniture material, the present invention can be directly molded simultaneously, by being molded one-pass molding, reduce the cost during Furniture manufacturing, and raw material components can be adjusted flexibly according to demand, it more adapts to produce actual needs.
Description
Technical field
The invention belongs to technical field of polymer materials, are related to a kind of modification material of polycarbonate, in particular to a kind of high
Mobility modification material of polycarbonate.
Background technique
In recent years transparent plastic furniture by its multiplicity moulding, unique style and high penetrating degree increasingly by
Consumer's pursues.However the material requirements for producing transparent furniture is high: the high grade of transparency that material itself has, well
Mechanical strength and Weatherproof ageing-resistant performance.Polycarbonate is the amorphous polymer of almost colourless glassy state, is had very well
It is optical, Izod notched impact strength is high, and when being lower than 100 DEG C, creep rate under a load is very low.Become transparent modeling at present
Expect one of the popular raw material of furniture, however the melting temperature of polycarbonate is higher, and melt viscosity is also higher after melting, mobility compared with
Difference is easy to produce internal stress, and manufactured product is easy because internal stress cracks, and resistance to scratch is poor, is exposed to for a long time ultraviolet
It can turn to be yellow in line.
The prior art such as Chinese patent [CN105542176A] discloses a kind of high fluidity and the modification of low-temperature flexibility is poly-
Carbonic ester is modified polycarbonate by reactive dimethyl silicone polymer, complicated for operation, and overall cost is high；It is Chinese special
Sharp [CN104448760A] discloses a kind of scratch-resistant bloom PC/ABS material, however PC is as noncrystalline system and ABS not phase
Hold, needs to add the transparency that compatilizer affects material.
Summary of the invention
Regarding the issue above, the present invention provides a kind of modification material of polycarbonate.
In order to achieve the above objectives, present invention employs following technical proposals:
A kind of high fluidity modification material of polycarbonate is made of following raw material in parts by weight: polycarbonate 60~80
Part, 10~25 parts of polymethylpentene copolymers, 5~12 parts of acrylonitritrile-styrene resin, vinyl-vinyl acetate copolymer 6
~15 parts, 0.2~0.6 part of non-halogen organic flame retardants, 0.3~0.8 part of lubricant, 0.2~0.7 part of antioxidant, ultraviolet radiation absorption
0.2~1 part of agent.
In above-mentioned high fluidity modification material of polycarbonate, the polymethylpentene copolymers light transmittance is not less than
87%, haze value is less than 2%, and the acrylonitritrile-styrene resin styrene-content is 60~70%, the ethylene-
Vinyl acetate content is 40~50% in vinyl acetate copolymer.
In above-mentioned high fluidity modification material of polycarbonate, the non-halogen organic flame retardants are by Sulfonates Halogen
Fire retardant, aromatic phosphoric acid esters halogen-free flame retardants and the one or more compositions of organic sesqui siloxane resin, the lubrication
Agent is pentaerythritol stearate series lubricant agent.
In above-mentioned high fluidity modification material of polycarbonate, the antioxidant is Hinered phenols antioxidant or is obstructed
Mixture made of the compounding of phenolic antioxidant and phosphite antioxidant, the ultraviolet absorbing agent are that benzoic acid esters are ultraviolet
One of light absorbers, Benzotriazole Ultraviolet Stabilizer are a variety of.
In above-mentioned high fluidity modification material of polycarbonate, in parts by weight, it is made of following raw material: polycarbonate
72 parts, 18 parts of polymethylpentene copolymers, 9 parts of acrylonitritrile-styrene resin, 11 parts of vinyl-vinyl acetate copolymer, nothing
0.4 part of halogen organic fire-retardant, 0.6 part of lubricant, 0.4 part of antioxidant, 0.7 part of ultraviolet absorbing agent.
Above-mentioned high fluidity modification material of polycarbonate, is prepared from the following steps:
A, prepare above-mentioned raw materials by the parts by weight of constitutive material,
B, polycarbonate and acrylonitritrile-styrene resin are separately dried,
C, polymethylpentene copolymers, acrylonitritrile-styrene resin, ethane-acetic acid ethyenyl ester are added into high mixer
Copolymer, it is uniform with 800~1000rpm mixed at high speed,
D, the remaining other components in addition to polycarbonate are added in Xiang Shangshu mixture, it is mixed with low speed in 400~600rpm
It closes uniformly,
E, the polycarbonate after above-mentioned mixture and drying is added in double screw extruder, in 240~270 DEG C of temperature
Under the conditions of extruding pelletization to get arrive the high fluidity modification material of polycarbonate.
In the preparation method of above-mentioned high fluidity modification material of polycarbonate, the drying condition of the polycarbonate
For 110~120 DEG C of 15~20h of drying of vacuum oven are still put in a drying box after dry, and the acrylonitrile-styrene is total
The drying condition of polymers is 80~100 DEG C of 2~4h of drying of hot air type drying by circulating air machine, the addition group into high mixer
Before point, high mixer temperature is risen to 60~80 DEG C.
Above-mentioned high fluidity modification material of polycarbonate, is prepared from the following steps:
A, prepare above-mentioned raw materials by the parts by weight of constitutive material,
B, polycarbonate is existed acrylonitritrile-styrene resin in 110~120 DEG C of 15~20h of drying of vacuum oven
80~100 DEG C of 2~4h of drying of hot air type drying by circulating air machine,
C, by after drying polycarbonate and acrylonitritrile-styrene resin and other remaining ingredients pour into injection molding machine, if
Determine 90~120MPa of injection pressure, 260~300 DEG C of barrel temperature, nozzle temperature is 5~10 DEG C lower than barrel temperature,
E, mold cavity is injected after mixture melting, is processed at a slow speed in, low-high-low multi-stage injection, mold temperature 70
~100 DEG C, cooling and demolding molding,
F, moulded products are heat-treated, 100~120 DEG C for the treatment of temperature, the processing time is 15~30min.
In the preparation method of above-mentioned high fluidity modification material of polycarbonate, by raw material components pour into injection molding machine it
Before, the raw material components in addition to polycarbonate are uniformly mixed in high mixer.
In above-mentioned high fluidity modification material of polycarbonate, the high fluidity modification material of polycarbonate is in
Has the application in product.
Compared with prior art, the present invention has the advantages that
1, polymethylpentene copolymers, acrylonitritrile-styrene resin, the ethane-acetic acid ethyenyl ester that the present invention uses are total
Polymers is the material of high glaze, high transparency, and without separately adding compatilizer, utmostly ensure that the high transparency of material
Degree.High fluidity, flexibility, the rigidity of scratch-resistant of material made of the present invention meet market to transparent plastic furniture simultaneously
The demand of material.
2, the especially high-quality polycarbonate of the polycarbonate in current China, relies primarily on import, with high costs.The present invention can
With using common polycarbonate as raw material, cost of material is relatively low, while also there is fire-retardant performance, and easy to operate,
Ingredient and preparation process are more environmentally friendly, meet the demand in market.
3, the present invention can be directly molded, and by injection molding one-pass molding, reduce the cost during Furniture manufacturing,
And raw material components can be adjusted flexibly according to demand, it more adapts to produce actual needs.
Further advantage, target and feature of the invention will be partially reflected by the following instructions, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Specific embodiment
Examples 1 to 6
With reference to embodiments and comparative example present invention is further described in detail.
No. 1 abbreviation PC-1 of polycarbonate selects Bayer A.G 2805.
No. 2 abbreviation PC-2 of polycarbonate select Jiaxing Supreme Being people L-1250Z100.
Polymethylpentene copolymers self-control, abbreviation PMP.Bulk polymerization is passed through by 4-methyl-1-pentene monomer, initiator is
2,2-Dimethylpropionic acid and ferrous ion, preparation method are as follows:
In the autoclave of belt stirrer, under nitrogen atmosphere, 4-methyl-1-pentene monomer is added.It is forced into ethylene
1.03MPa, and emptying displaces nitrogen 3 times repeatedly.Then, by 2,2-Dimethylpropionic acid and ferrous ion mixed solution through kettle top
Portion's entrance is rapidly injected.Sealing autoclave, and 1800~2300Pa is forced into hydrogen immediately；Then it is pressurized to using mixed gas
3200~4000Pa (hydrogen containing 13mol% in the gas phase), stirring 30min are continuously fed into 4-methyl-1-pentene monomer (no longer simultaneously
Feed hydrogen).Prepolymer synthesis phase temperature is maintained at 160~200 DEG C, and into formative stage, temperature rises to 280~320 DEG C, row
Gas is decompressed to 120Pa or less out.After 3~4.5h, reaction terminates to be 1200~1800 to the degree of polymerization, average molecular
Amount is the polymethylpentene copolymers of 18000~28000g/mol.Light transmittance be 89~92%, haze value less than 2%,
Acrylonitritrile-styrene resin 1 self-control, abbreviation AS-1, styrene-content 60%.
Acrylonitritrile-styrene resin 2 self-controls, abbreviation AS-2, styrene-content 70%.
Vinyl-vinyl acetate copolymer 1 self-control, abbreviation VAE-1, vinyl acetate content 40%.
Vinyl-vinyl acetate copolymer 2 self-controls, abbreviation VAE-2, vinyl acetate content 50%.
Non-halogen organic flame retardants select U.S. Arichem (SLOSS) company F-535.
The PETS of lubricant selection U.S. Long Sha Co., Ltd.
Antioxidant selects the B215 of addition Li Anlong new material limited liability company.
Ultraviolet light selects German BASF UV-P.
Embodiment 1-6 raw material components are shown in Table 1.
1 raw material components of table
Comparative example 1~3
The same embodiment of 1~3 raw material of comparative example.
1~3 raw material components of comparative example are shown in Table 1.
Application examples 1
High fluidity modification material of polycarbonate is prepared according to Examples 1 to 6 and comparative example 1~3:
A, prepare above-mentioned raw materials by the parts by weight of constitutive material,
B, polycarbonate is still put in a drying box after dry in 110~120 DEG C of 15~20h of drying of vacuum oven；Third
Alkene nitrile-styrol copolymer is in 80~100 DEG C of 2~4h of drying of hot air type drying by circulating air machine.
C, high mixer temperature is risen to 60~80 DEG C.Polymethylpentene copolymers, acrylonitrile-benzene second are added into high mixer
Alkene copolymer, vinyl-vinyl acetate copolymer, it is uniform with 800~1000rpm mixed at high speed,
D, the remaining other components in addition to polycarbonate are added in Xiang Shangshu mixture, it is mixed with low speed in 400~600rpm
It closes uniformly,
E, the polycarbonate after above-mentioned mixture and drying is added in double screw extruder, in 240~270 DEG C of temperature
Under the conditions of extruding pelletization to get arrive the high fluidity modification material of polycarbonate.
Pellet after dry 5h, is molded into standard batten with injection molding machine, injection temperature is 210~240 DEG C at 90 DEG C.Batten
It is adjusted for 24 hours in (23 ± 2) DEG C, (50 ± 5) % humidity environment after molding.
By the test batten of obtained Examples 1 to 6 and ratio 1~3, tests correlated performance and is shown in Table 2:
Melt flow rate (MFR) is tested by ASTM D-1238, and experimental condition is 300 DEG C, 1.2kg；Tensile strength presses ASTM D-
638 tests, experimental condition 5mm/min；Bending strength is tested by ASTM D-790, experimental condition 2.8mm/min；Cantilever beam
Notch impact strength is tested by ASTM D-256, experimental condition 1/4inch；Rockwell hardness is tested by ASTM D-785；Light transmission
Rate is tested by DIN 5036-1, experimental condition 2mm；Mist degree is tested by ISO 14782, experimental condition 2mm；Experimental condition is
Flame retardant rating is tested by UL94, experimental condition 3.2mm；Heat distortion temperature presses ISO75A-1, -2 tests, and experimental condition is
1.80MPa unannealed.
2 batten performance parameter test result of table
As shown in Table 2, Examples 1 to 6 properties are much better than comparative example, and the light transmittance and mist degree of embodiment are much better than pair
Ratio has splendid vision and aesthetic effect；The toughness that tensile strength and bending strength show embodiment is better than comparative example,
Meet requirement of the plastic furniture to material high tenacity；The splendid Izod notched impact strength of embodiment and Rockwell hardness are shown
Material prepared by the present invention overcomes the not wear-resisting defect of polycarbonate.Test result also demonstrates the section of inventive formulation simultaneously
The property learned.
Application examples 2
Embodiment 5, embodiment 6 and comparative example 1~3 are prepared into transparent equal-thickness integral type armchair:
A, prepare above-mentioned raw materials by the parts by weight of constitutive material,
B, polycarbonate is existed acrylonitritrile-styrene resin in 110~120 DEG C of 15~20h of drying of vacuum oven
80~100 DEG C of 2~4h of drying of hot air type drying by circulating air machine,
C, the raw material components in addition to polycarbonate are uniformly mixed in high mixer.By the polycarbonate and propylene after drying
Nitrile-styrol copolymer and other remaining ingredients pour into injection molding machine, set 90~120MPa of injection pressure, and barrel temperature 260~
300 DEG C, nozzle temperature is 5~10 DEG C lower than barrel temperature,
E, mold cavity is injected after mixture melting, is processed at a slow speed in, low-high-low multi-stage injection, mold temperature 70
~100 DEG C, cooling and demolding molding,
F, moulded products are heat-treated, 100~120 DEG C for the treatment of temperature, the processing time is 15~30min.
Obtained transparent equal-thickness integral type armchair sample is tested for the property；Test result is shown in Table 3.
Plastic part appearance is tested by table 3 in GB/T 32487-2016 " plastic furniture general technical specifications "；It is ageing-resistant
Property is tested by GB/T 16422.2-1999 " plastics laboratory light source exposure test method part 2: xenon arc lamp "；It stretches
Intensity is tested by GB/T 1040-2006 " measurement of plastic tensile performance "；Stability and intensity press GB/T 10357.3-
1989 " furniture mechanical property test bench class intensity and durabilities " are tested；Anti-flammability is by GB/T 2406.2-2009 " modeling
Material oxygen index method measures burning behavior part 2: room temperature is tested ".Evaluation method is according to GB/T 32487-2016 " plastics man
Has general technical specifications ".
3 transparent equal-thickness integral type armchair sample of table is tested for the property
From the angle of article of furniture comprehensive performance, the properties of sample made of the present invention is excellent, especially resistance to ag(e)ing and
Durability.After 600h is tested, discoloration degree is remained at compared with low water-mark, and tensile strength still has good conservation rate, and comparative example is most
It can be only sustained within 500h, and tensile strength is significantly lower than embodiment more.Durability test level be 4 grades in the case where still
It complies with standard, comparative example can only be complied with standard in the case where test level is 2~3 grades.It can be seen that material of the present invention is a kind of excellent
Different transparent plastic furniture material.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Although polycarbonate, polymethylpentene, acrylonitritrile-styrene resin, ethylene-acetate is used more herein
Vinyl ester copolymers, non-halogen organic flame retardants, lubricant, antioxidant, ultraviolet absorbing agent, colorant, high mixer, twin-screw squeeze
The terms such as machine, injection molding machine out, but it does not exclude the possibility of using other terms.The use of these items is only for more convenient
Ground describes and explains essence of the invention, and being construed as any additional limitation is disagreed with spirit of that invention
's.
Claims (10)
1. a kind of high fluidity modification material of polycarbonate, which is characterized in that in parts by weight, be made of following raw material: poly- carbon
60~80 parts of acid esters, 10~25 parts of polymethylpentene copolymers, 5~12 parts of acrylonitritrile-styrene resin, ethylene-acetate second
6~15 parts of enoate copolymer, 0.2~0.6 part of non-halogen organic flame retardants, 0.3~0.8 part of lubricant, 0.2~0.7 part of antioxidant,
0.2~1 part of ultraviolet absorbing agent.
2. high fluidity modification material of polycarbonate according to claim 1, which is characterized in that the polymethylpentene
Copolymer light transmittance is not less than 87%, and for haze value less than 2%, the acrylonitritrile-styrene resin styrene-content is 60
~70%, vinyl acetate content is 50~60% in the vinyl-vinyl acetate copolymer.
3. high fluidity modification material of polycarbonate according to claim 1, which is characterized in that the organic resistance of the Halogen
It is a kind of or more by Sulfonates halogen-free flame retardants, aromatic phosphoric acid esters halogen-free flame retardants and organic sesqui siloxane resin to fire agent
Kind composition, the lubricant are pentaerythritol stearate series lubricant agent.
4. high fluidity modification material of polycarbonate according to claim 1, which is characterized in that the antioxidant be by
Mixture made of the compounding of phenolic antioxidant or Hinered phenols antioxidant and phosphite antioxidant is hindered, the ultraviolet light is inhaled
Receiving agent is one of benzoic acid esters ultraviolet absorbing agent and Benzotriazole Ultraviolet Stabilizer or a variety of.
5. high fluidity modification material of polycarbonate according to claim 1, which is characterized in that in parts by weight, by with
Lower raw material composition: 72 parts of polycarbonate, 18 parts of polymethylpentene copolymers, 9 parts of acrylonitritrile-styrene resin, ethylene-acetate
11 parts of vinyl ester copolymers, 0.4 part of non-halogen organic flame retardants, 0.6 part of lubricant, 0.4 part of antioxidant, ultraviolet absorbing agent 0.7
Part.
6. high fluidity modification material of polycarbonate according to claims 1 to 5, which is characterized in that by following steps system
It is standby to form:
A, prepare above-mentioned raw materials by the parts by weight of constitutive material,
B, polycarbonate and acrylonitritrile-styrene resin are separately dried,
C, polymethylpentene copolymers, acrylonitritrile-styrene resin, ethylene-vinyl acetate c are added into high mixer
Object, it is uniform with 800~1000rpm mixed at high speed,
D, the remaining other components in addition to polycarbonate are added in Xiang Shangshu mixture, it is equal with mixed on low speed in 400~600rpm
It is even,
E, the polycarbonate after above-mentioned mixture and drying is added in double screw extruder, in 240~270 DEG C of temperature conditions
Lower extruding pelletization to get arrive the high fluidity modification material of polycarbonate.
7. the preparation method of high fluidity modification material of polycarbonate according to claim 5, which is characterized in that described
The drying condition of polycarbonate is 110~120 DEG C of 15~20h of drying of vacuum oven, is still put in a drying box after dry, institute
The drying condition for the acrylonitritrile-styrene resin stated is 80~100 DEG C of 2~4h of drying of hot air type drying by circulating air machine, institute
Before that states is added component into high mixer, high mixer temperature is risen to 60~80 DEG C.
8. high fluidity modification material of polycarbonate according to claims 1 to 5, which is characterized in that by following steps system
It is standby to form:
A, prepare above-mentioned raw materials by the parts by weight of constitutive material,
B, by polycarbonate in 110~120 DEG C of 15~20h of drying of vacuum oven, by acrylonitritrile-styrene resin in hot wind
80~100 DEG C of 2~4h of drying of formula drying by circulating air machine,
C, by after drying polycarbonate and acrylonitritrile-styrene resin and other remaining ingredients pour into injection molding machine, setting note
90~120MPa of blow pressure, 260~300 DEG C of barrel temperature, nozzle temperature is 5~10 DEG C lower than barrel temperature,
E, mold cavity is injected after mixture melting, is processed at a slow speed in, low-high-low multi-stage injection, mold temperature 90~
100 DEG C, cooling and demolding molding,
F, moulded products are heat-treated, 100~120 DEG C for the treatment of temperature, the processing time is 15~30min.
9. the preparation method of high fluidity modification material of polycarbonate according to claim 7, which is characterized in that will be former
Material component pours into before injection molding machine, and the raw material components in addition to polycarbonate are uniformly mixed in high mixer.
10. described in any item high fluidity modification material of polycarbonate according to claim 1~9, which is characterized in that described
Application of the high fluidity modification material of polycarbonate in article of furniture.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111073255A (en) * | 2019-12-31 | 2020-04-28 | 杭州强本塑胶科技有限公司 | Hydrophobic plastic granules and production process and application method thereof |
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| US4704432A (en) * | 1983-05-09 | 1987-11-03 | The Dow Chemical Company | Blends of polyestercarbonate with 4-methyl-1-pentene polymers |
| CN102604353A (en) * | 2012-02-21 | 2012-07-25 | 北京泰合源通生物科技有限公司 | Glass fiber reinforced polycarbonate composite material and preparation method thereof |
| CN105566881A (en) * | 2016-02-24 | 2016-05-11 | 奥美凯聚合物（苏州）有限公司 | Modified PC composite material and preparing method thereof |
| CN107778807A (en) * | 2016-08-26 | 2018-03-09 | 芜湖君禾电线电缆有限公司 | High temperature-resistant cable insulating materials being modified based on alumina fiber and preparation method thereof |
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2019
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| US4704432A (en) * | 1983-05-09 | 1987-11-03 | The Dow Chemical Company | Blends of polyestercarbonate with 4-methyl-1-pentene polymers |
| JPS612749A (en) * | 1984-06-14 | 1986-01-08 | Teijin Chem Ltd | Resin composition |
| CN102604353A (en) * | 2012-02-21 | 2012-07-25 | 北京泰合源通生物科技有限公司 | Glass fiber reinforced polycarbonate composite material and preparation method thereof |
| CN105566881A (en) * | 2016-02-24 | 2016-05-11 | 奥美凯聚合物（苏州）有限公司 | Modified PC composite material and preparing method thereof |
| CN107778807A (en) * | 2016-08-26 | 2018-03-09 | 芜湖君禾电线电缆有限公司 | High temperature-resistant cable insulating materials being modified based on alumina fiber and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111073255A (en) * | 2019-12-31 | 2020-04-28 | 杭州强本塑胶科技有限公司 | Hydrophobic plastic granules and production process and application method thereof |
| CN111073255B (en) * | 2019-12-31 | 2022-02-01 | 杭州强本塑胶科技有限公司 | Hydrophobic plastic granules and production process and application method thereof |
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