CN106046777A - Glass fiber reinforced polyamide compound material and preparation method thereof - Google Patents
Glass fiber reinforced polyamide compound material and preparation method thereof Download PDFInfo
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- CN106046777A CN106046777A CN201610487108.7A CN201610487108A CN106046777A CN 106046777 A CN106046777 A CN 106046777A CN 201610487108 A CN201610487108 A CN 201610487108A CN 106046777 A CN106046777 A CN 106046777A
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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
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/06—Polyamides derived from polyamines and polycarboxylic acids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/002—Methods
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/0405—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
- C08J5/043—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres with glass fibres
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
- C08J2377/06—Polyamides derived from polyamines and polycarboxylic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2477/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
- C08J2477/06—Polyamides derived from polyamines and polycarboxylic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Reinforced Plastic Materials (AREA)
Abstract
The invention provides a glass fiber reinforced polyamide compound material which is prepared by compounding the following components: 40-60 parts by weight of polyamide, 5-15 parts of low-molecular weight polyamide, 20-40 parts by weight of glass fiber, 2-10 parts by weight of a toughening agent and 0.5-2 parts by weight of a lubricating agent. Compared with the prior art, the glass fiber reinforced polyamide compound material has the advantages that the low-molecular weight polyamide is added in the glass fiber reinforced polyamide compound material, and the low-molecular weight polyamide has good fluidity in a preparation process and can float to the surface of the material in a material flow process due to shearing action, so that the material has good gloss; in addition, the used lubricating agent capable of improving the surface smoothness of the material can prevent raw material melt from adhering to equipment, and because a unique ball structure is formed when the dendritic molecules of the lubricating agent are aggregated together, the ball structure has a macroscopically smooth upper surface; and meanwhile, under the combined action of the toughening agent and glass fiber, the compound material has the characteristic of high strength.
Description
Technical field
The invention belongs to technical field of composite materials, particularly relate to fiber glass reinforced polyamide composite material and preparation side thereof
Method.
Background technology
Glass fibre reinforced composite material, is with polymer as matrix, the composite wood made with glass fibre as reinforcing material
Material, combines the performance of polymer and glass fibre.Glass fibre reinforced composite material presses the length classification of fiber, can be divided into long fibre
Composite and short fiber composite material；Glass fibre can be divided into alkali-free aluminoborosilicate (to be called for short alkali-free fine according to chemical constituent
Dimension) and have alkali without borosilicate (alkali fiber in abbreviation).
Fiberglass reinforced plastics are main method and the means of current modifying plastics, can by the performance of general-purpose plastics significantly
Improve, reach the performance level of engineering plastics, so fiberglass reinforced plastics technology is widely used.
The mainstream technology of domestic production fiberglass reinforced thermoplastic is by continuous glass-fiber yarn fitting at extruder at present
When position enters the barrel of extruder, screw rod engaged in barrel stirs disconnected and obtains, its production procedure schematic diagram when rotating
As shown in Figure 1.For the production of the fiberglass reinforced plastics of polyamide (PA) class plastics, PA resin also needs to before entering extruder
Dried, to remove the moisture in resin, prevents from occurring hydrolysis to affect fiber glass reinforced polyamide in the extruder of high temperature
The quality of composite.
Fiber glass reinforced polyamide composite material in fiberglass reinforced plastics has excellent mechanical property and dimensional stability,
But, fiber glass reinforced polyamide composite material glass when injection moulding easily floats over the surface of product, comes to the outward appearance of goods
Adverse effect, thus affect its application in the higher place of appearance requirement.
Summary of the invention
In view of this, the technical problem to be solved in the present invention is that the fiber glass reinforced polyamide providing a kind of lustrous surface is multiple
Condensation material and preparation method thereof.
The invention provides a kind of fiber glass reinforced polyamide composite material, following components be composited, including:
Described lubricant is dendritic.
Preferably, described polyamide is PA66.
Preferably, the antioxidant of 0.05～0.2 weight portion is also included.
Preferably, the aid anti-oxidants of 0.05～0.2 weight portion is also included.
Preferably, the color masterbatch of 0.5～2 weight portions is also included.
Present invention also offers the preparation method of a kind of fiber glass reinforced polyamide composite material, including:
A) by the polyamide of 40～60 weight portions, 5～15 low molecular polyamides, 2～10 increasings of weight portion of weight portion
Tough dose is heated with the mix lubricant of 0.5～2 weight portions, then adds the glass fibre of 20～40 weight portions, melt blending,
Obtain fiber glass reinforced polyamide composite material；Described lubricant is dendritic.
Preferably, described step A) particularly as follows:
By the polyamide of 40～60 weight portions, 5～15 low molecular polyamides, 2～10 weight portion toughness reinforcing of weight portion
Agent is heated to melting with the mix lubricant of 0.5～2 weight portions, is subsequently adding a part of glass fibre, after mixing, adds remaining
Under glass fibre, melt blending, obtain fiber glass reinforced polyamide composite material；Described a part of glass fibre and remaining glass
Glass fiber totally 20～40 weight portion.
Preferably, described a part of glass fibre is 1:(0.5～2 with the mass ratio of remaining glass fibre).
Preferably, described step A) particularly as follows:
By the polyamide of 40～60 weight portions, 5～15 low molecular polyamides, 2～10 weight portion toughness reinforcing of weight portion
Agent adds in double screw extruder with the mix lubricant of 0.5～2 weight portions, and then the 3rd～6 joints at double screw extruder add
Material mouth adds a part of glass fibre, then adds remaining glass fibre, melt blending at the 7th～9 joint charge doors, obtains glass
Reinforced polyamide composite；Described a part of glass fibre and remaining glass fibre totally 20～40 weight portion.
Preferably, in described double screw extruder, the specification of screw rod is T48/48,64/64,48/48,32/32,30 °/7/
64,45 °/5/48,90 °/5/48 with 32/16L in one.
The invention provides a kind of fiber glass reinforced polyamide composite material, following components be composited, including: polyamide
40～60 weight portions；Low molecular polyamides 5～15 weight portion；Glass fibre 20～40 weight portion；Toughener 2～10 weight
Part；Lubricant 0.5～2 weight portion.Compared with prior art, the present invention adds low point in fiber glass reinforced polyamide composite material
Son amount polyamide and lubricant, low molecular polyamides is good fluidity in the course of processing, because cutting during material flow
The effect of cutting can float to the surface of material, thus gives the gloss that material is good, it addition, use has raising material finish
Lubricant, the adhesion of raw material melt and equipment can not only be prevented, and owing to the dendritic molecule of this lubricant is gathered in
Having the chondritic of uniqueness time together, it is any surface finish that this chondritic exists material surface macroscopically surface；Meanwhile, exist
Toughener, with under the common effect of glass fibre, also makes glass fibre reinforced composite material have the feature of high intensity.
From experiment, fiber glass reinforced polyamide composite material lustrous surface and intensity prepared by the present invention are higher.
Accompanying drawing explanation
Fig. 1 is current domestic production fiberglass reinforced thermoplastic production procedure schematic diagram；
Fig. 2 is the preparation flow schematic diagram of fiber glass reinforced polyamide composite material of the present invention.
Detailed description of the invention
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described,
Obviously, described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based in the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, all
Belong to the scope of protection of the invention.
The invention provides a kind of fiber glass reinforced polyamide composite material, following components be composited, including:
Described lubricant is dendritic.
The source of all raw materials is not particularly limited by the present invention, for commercially available.
Wherein, polyamide is the main body of fiber glass reinforced polyamide composite material.The content of described polyamide be preferably 45～
55 weight portions, more preferably 50～55 weight portions, are further preferably 50～53 weight portions；In some embodiments that the present invention provides
In, the content of described polyamide is preferably 50 weight portions；In other embodiments that the present invention provides, containing of described polyamide
Amount is preferably 51.8 weight portions；The polyamide that the kind of described polyamide is well known to those skilled in the art, it is special to there is no
Restriction, in the present invention be preferably nylon66 fiber；The molecular weight of described polyamide is preferably 1～30,000, more preferably 1.5～2.5
Ten thousand, it is further preferably 1.5～20,000, most preferably 1.8 ten thousand；The ratio of viscosities of described polyamide is preferably 1.5～3.5, more preferably 2
～3, it is further preferably 2.4～2.8, most preferably 2.55.
The content of described low molecular polyamides is preferably 7～15 weight portions, more preferably 8～15 weight portions, further preferably
It is 8～12 weight portions, most preferably 10 weight portions；The kind of described low molecular polyamides is well known to those skilled in the art
Low molecular polyamides, there is no special restriction, and the molecular weight of heretofore described low molecular polyamides is preferably
8500～9000.The present invention provide fiber glass reinforced polyamide composite material in, low molecular polyamides can as plasticizer,
Improve mobility and the surface smoothness of material.
The content of described glass fibre is preferably 25～40 weight portions, more preferably 25～35 weight portions, is further preferably 30
Weight portion；The glass fibre that the kind of described glass fibre is well known to those skilled in the art, there is no special restriction, this
Invention is preferably common alkali-free glass fibre.Glass fibre can strengthen the intensity of composite.
The content of described toughener is preferably 4～8 weight portions；More preferably 6～8 weight portions；The kind of described toughener
The toughener being well known to those skilled in the art, there is no special restriction, is preferably thermoplastic elastomer (TPE), more in the present invention
Preferably include thermoplastic elastomer (TPE) TPE and be grafted two kinds of increasing tougheness of POE with maleic anhydride；Described thermoplastic elastomer (TPE) TPE and Malaysia
The mass ratio of acid anhydride-grafted POE is preferably 2:(0.5～2), more preferably 2:(0.5～1.5), most preferably 2:1.Wherein, horse
Maleic anhydride grafted POE can improve the toughness of composite, good with polyamide-compatible；And thermoplastic elastomer (TPE) TPE also can improve
The toughness of composite, price is low simultaneously, it is possible to decrease the cost of composite.
The content of described lubricant is preferably 0.8～1.5 weight portions, more preferably 0.8～1.2 weight portions, is further preferably
0.9～1.1 weight portions, most preferably 1 weight portion；The dendritic that described lubricant is well known to those skilled in the art is i.e.
Can, there is no special restriction, the present invention is preferably dendritic CYD-PR121.Dendritic is as lubricant
Can prevent material from boning with equipment, improve composite surface finish.
For improving the non-oxidizability of fiber glass reinforced polyamide composite material, during preventing materials processing and using, there is oxygen
Change, be preferably additionally added the antioxidant of 0.05～0.5 weight portion, more preferably add the antioxidant of 0.05～0.3 weight portion, further preferably
Add the antioxidant of 0.08～0.2 weight portion, most preferably add the antioxidant of 0.1 weight portion；Described antioxidant is preferably obstructed
Phenolic antioxidant, more preferably alkyl Polyphenols antioxidant, be further preferably antioxidant 1098 (N, N'-be double-(3-(3,5-bis-tertiary fourths
Base-4-hydroxy phenyl) propiono) hexamethylene diamine).
In the present invention, it is preferred to be additionally added the aid anti-oxidants of 0.05～0.2 weight portion, more preferably add 0.05～0.3 weight
The aid anti-oxidants of amount part, further preferably adds the aid anti-oxidants of 0.08～0.2 weight portion, most preferably adds helping of 0.1 weight portion anti-
Oxygen agent；Described aid anti-oxidants is preferably UV absorbent, more preferably UV absorbent UV327.
Fiber glass reinforced polyamide composite material of the present invention the most also includes the color masterbatch of 0.5～2 weight portions, and it can give multiple
Condensation material, with the color needed, more preferably includes the color masterbatch of 0.8～1.8 weight portions, further preferably includes 0.8～1.4 weight portions
Color masterbatch, most preferably include the color masterbatch of 1 weight portion.
The present invention adds low molecular polyamides and lubricant in fiber glass reinforced polyamide composite material, and low-molecular-weight is gathered
Amide is good fluidity in the course of processing, can float to the surface of material because of shear action, thus compose during material flow
Give the gloss that material is good, it addition, use has the lubricant improving material finish, raw material melt can not only be prevented
With the adhesion of equipment, and due to have when the dendritic molecule of this lubricant flocks together uniqueness chondritic, this
It is any surface finish that chondritic exists material surface macroscopically surface；Meanwhile, under the common effect of toughener and glass fibre,
Also glass fibre reinforced composite material is made to have the feature of high intensity.
Present invention also offers the preparation method of a kind of above-mentioned fiber glass reinforced polyamide composite material, including: A) by 40～
The polyamide of 60 weight portions, 5～15 weight portion low molecular polyamides, 2～10 weight portion toughener and 0.5～2 weight
The mix lubricant heating of part, then adds the glass fibre of 20～40 weight portions, melt blending, obtains fiberglass reinforced polyamides
Amine composite；Described lubricant is dendritic.
Wherein, described polyamide, low molecular polyamides, toughener, lubricant are same as above with glass fibre bacterium, at this
Repeat no more.
In the present invention, it is preferred to first the polyamide of 40～60 weight portions is dried；Described dry temperature is preferably 100 DEG C
～120 DEG C, more preferably 100 DEG C～110 DEG C, be further preferably 105 DEG C～110 DEG C, most preferably 105 DEG C；Described dry time
Between be preferably 10～20h, more preferably 10～18h, be further preferably 12～14h, most preferably 12h.
Again by the polyamide of dried 40～60 weight portions, 5～15 low molecular polyamides, 2～10 weights of weight portion
The toughener of amount part and the mix lubricant of 0.5～2 weight portions are heated to molten condition, then add 20～40 weight portions
Glass fibre.
The glass fibre of described 20～40 weight portions is preferably divided into two parts and adds, the most first by the polyamides of 40～60 weight portions
Amine, 5～15 weight portion low molecular polyamides, 2～10 weight portion toughener and the mix lubricant of 0.5～2 weight portions
It is heated to molten condition, is subsequently adding a part of glass fibre, after mixing, add remaining glass fibre, melt blending；Institute
The mass ratio stating a part of glass fibre and remaining glass fibre is preferably 1:(0.5～2), more preferably 1:(0.5～
1.5), it is further preferably 1:(0.5～1), most preferably 1:(0.5～0.8)；In some embodiments that the present invention provides, described
A part of glass fibre is preferably 6:4 with the mass ratio of remaining glass fibre.
In the present invention, above-mentioned it is heated to molten condition and melt blending is preferably carried out, now in double screw extruder
Described step A) preferably particularly as follows: by the polyamide of 40～60 weight portions, 5～15 low molecular polyamides, 2～10 of weight portion
The mix lubricant of the toughener of weight portion and 0.5～2 weight portions adds in double screw extruder, then at double screw extruder
The 3rd～6 joint charge doors add a part of glass fibre, then add remaining glass fibre at the 7th～9 joint charge doors, melted
It is blended, obtains fiber glass reinforced polyamide composite material；Described a part of glass fibre and remaining glass fibre totally 20～40 weight
Amount part.Described double screw extruder 10～12 joint barrel the most altogether.
Wherein, described a part of glass fibre preferably adds at the 4th～5 joint charge doors, more preferably adds at Section 4 charge door
Enter；Described remaining glass fibre preferably adds at the 7th～8 joint charge doors, more preferably adds at Section 8 charge door.
Glass fibre is added in other charging, in order to allow glass fibre keep in the material, there is certain length
Need the process choice carried out, first material is added from first charge door, allow its mixing shear and be gradually transformed into melt, then allow
Glass fibre enters and mixes, it is to avoid glass fibre is caused glass fibre to fragment into minimum fibre in a large number by excessive shearing
Dimension, the undersized effect that can reduce enhancing of fibre length.
In described double screw extruder the specification of screw rod be preferably T48/48,64/64,48/48,32/32,30 °/7/64,
One in 45 °/5/48,90 °/5/48 and 32/16L, more preferably screw combinations is the combination of 1 shown in table 1～22.
The screw combinations of table 1 double screw extruder
The extrusion temperature of described double screw extruder is preferably 295 DEG C～315 DEG C, more preferably 295 DEG C～310 DEG C, then
It is preferably 295 DEG C～305 DEG C, most preferably 295 DEG C～300 DEG C.
After melt blending, preferably extruding pelletization, obtain fiber glass reinforced polyamide composite material.
Fig. 2 is the preparation flow schematic diagram of fiber glass reinforced polyamide composite material of the present invention, wherein 1 be polyamide with except glass
Glass fiber other raw materials mixing, 2 be feeder, 3 for double screw extruder, 4 for glass fibre, 5 be vaccum exhaust outlet,
6 be extruder head, 7 for bosh, 8 for drying device, 9 for pelleter, 10 for packaging.
In order to further illustrate the present invention, a kind of fiber glass reinforced polyamide provided the present invention below in conjunction with embodiment is multiple
Condensation material and preparation method thereof is described in detail.
Reagent used in following example is commercially available.
Embodiment 1
First by mixed in high-speed mixer for the component (except GF, PA need to be dried 12 hours at 105 DEG C) in formula shown in table 2
Close uniform compound.Under 295 DEG C～315 DEG C of extrusion temperatures, compound is added from the first segment of double screw extruder, glass
Glass fiber add with Section of eight charge door from Section four respectively (Section four amount added is 6 with the mass ratio of Section of eight addition:
4), melt blending, extruding pelletization, finally obtain fiber glass reinforced polyamide composite material.
Fiber glass reinforced polyamide composite material raw material type and content in table 2 embodiment 1
The fiber glass reinforced polyamide composite material obtained in embodiment 1 is processed into standard specimen and carries out performance test, survey
Test result is shown in Table 3.
Fiber glass reinforced polyamide composite material the performance test results in table 3 embodiment 1
| Project | Method of testing | Fiber glass reinforced polyamide composite material |
| Hot strength/MPa | D638 | 155 |
| Elongation at break/% | D790 | 4 |
| Bending strength/MPa | D790 | 238 |
| Notch impact strength/J/M | D256 | 106 |
| Products surface quality | Surface observation | Without floating fibre, any surface finish |
Embodiment 2
First by mixed in high-speed mixer for the component (except GF, PA need to be dried 12 hours at 105 DEG C) in formula shown in table 4
Close uniform compound.Under 295 DEG C～315 DEG C of extrusion temperatures, compound is added from the first segment of double screw extruder, glass
Glass fiber add with Section of eight charge door from Section four respectively (Section four amount added is 6 with the mass ratio of Section of eight addition:
4), melt blending, extruding pelletization, finally obtain fiber glass reinforced polyamide composite material.
Fiber glass reinforced polyamide composite material raw material type and content in table 4 embodiment 2
The fiber glass reinforced polyamide composite material obtained in embodiment 2 is processed into standard specimen and carries out performance test, survey
Test result is shown in Table 5.
Fiber glass reinforced polyamide composite material and PA66 the performance test results in table 5 embodiment 2
Claims (10)
1. a fiber glass reinforced polyamide composite material, it is characterised in that be composited by following components, including:
Described lubricant is dendritic.
Fiber glass reinforced polyamide composite material the most according to claim 1, it is characterised in that described polyamide is PA66.
Fiber glass reinforced polyamide composite material the most according to claim 1, it is characterised in that also include 0.05～0.2 weight
The antioxidant of amount part.
Fiber glass reinforced polyamide composite material the most according to claim 1, it is characterised in that also include 0.05～0.2 weight
The aid anti-oxidants of amount part.
Fiber glass reinforced polyamide composite material the most according to claim 1, it is characterised in that also include 0.5～2 weight portions
Color masterbatch.
6. the preparation method of a fiber glass reinforced polyamide composite material, it is characterised in that including:
A) by the polyamide of 40～60 weight portions, 5～15 low molecular polyamides, 2～10 toughener of weight portion of weight portion
Heat with the mix lubricant of 0.5～2 weight portions, then add the glass fibre of 20～40 weight portions, melt blending, obtain
Fiber glass reinforced polyamide composite material；Described lubricant is dendritic.
Preparation method the most according to claim 6, it is characterised in that described step A) particularly as follows:
By the polyamide of 40～60 weight portions, 5～15 weight portion low molecular polyamides, 2～10 weight portion toughener with
The mix lubricant of 0.5～2 weight portions is heated to melting, and is subsequently adding a part of glass fibre, after mixing, adds remaining
Glass fibre, melt blending, obtain fiber glass reinforced polyamide composite material；Described a part of glass fibre and remaining glass fibers
Dimension totally 20～40 weight portion.
Preparation method the most according to claim 7, it is characterised in that described a part of glass fibre and remaining glass fibers
The mass ratio of dimension is 1:(0.5～2).
Preparation method the most according to claim 7, it is characterised in that described step A) particularly as follows:
By the polyamide of 40～60 weight portions, 5～15 weight portion low molecular polyamides, 2～10 weight portion toughener with
The mix lubricant of 0.5～2 weight portions adds in double screw extruder, then at the 3rd～6 joint charge doors of double screw extruder
Add a part of glass fibre, then add remaining glass fibre, melt blending at the 7th～9 joint charge doors, obtain fiberglass reinforced
Polyamide compoiste material；Described a part of glass fibre and remaining glass fibre totally 20～40 weight portion.
Preparation method the most according to claim 9, it is characterised in that in described double screw extruder, the specification of screw rod is
T48/48,64/64,48/48,32/32,30 °/7/64,45 °/5/48,90 °/5/48 and the one in 32/16L.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108485257A (en) * | 2018-05-10 | 2018-09-04 | 句容市百事特复合材料有限公司 | A kind of long glass fiber reinforced polyamide compoiste material |
| CN110791086A (en) * | 2019-10-31 | 2020-02-14 | 广东轻工职业技术学院 | High weld mark strength glass fiber reinforced polyamide composite material and preparation method thereof |
| CN115181416A (en) * | 2022-07-15 | 2022-10-14 | 华润化学材料科技股份有限公司 | Polyamide engineering plastic and preparation method and application thereof |
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| CN110791086B (en) * | 2019-10-31 | 2022-06-10 | 广东轻工职业技术学院 | High weld mark strength glass fiber reinforced polyamide composite material and preparation method thereof |
| CN115181416A (en) * | 2022-07-15 | 2022-10-14 | 华润化学材料科技股份有限公司 | Polyamide engineering plastic and preparation method and application thereof |
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