CN114437383A - High-fluidity glass fiber reinforced nylon composition and preparation method and application thereof - Google Patents
High-fluidity glass fiber reinforced nylon composition and preparation method and application thereof Download PDFInfo
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- CN114437383A CN114437383A CN202210272070.7A CN202210272070A CN114437383A CN 114437383 A CN114437383 A CN 114437383A CN 202210272070 A CN202210272070 A CN 202210272070A CN 114437383 A CN114437383 A CN 114437383A
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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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- 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
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
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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
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
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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
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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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
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/04—Polyesters derived from hydroxy carboxylic acids, e.g. lactones
-
- 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
- C08J2467/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2467/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- 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
- C08J2471/00—Characterised by the use of polyethers obtained by reactions forming an ether link in the main chain; Derivatives of such polymers
- C08J2471/02—Polyalkylene oxides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/20—Carboxylic acid amides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/524—Esters of phosphorous acids, e.g. of H3PO3
- C08K5/526—Esters of phosphorous acids, e.g. of H3PO3 with hydroxyaryl compounds
Abstract
The invention relates to the technical field of production devices, in particular to a high-fluidity glass fiber reinforced nylon composition, a preparation method and an application thereof, and provides the following scheme, wherein the high-fluidity glass fiber reinforced nylon composition comprises the following components in parts by weight: 60-80 parts of nylon resin, 20-40 parts of glass fiber, 0.1-2 parts of antioxidant, 0.1-3 parts of flow improver and 0-2 parts of light stabilizer. Adding the components in weight into a high-speed mixer, mixing for 5-10 minutes, and adding into a double-screw extruder through a main feeding port; and adding the glass fiber into a double-screw extruder from a side feed, and drawing and granulating to obtain the composition. Because the reinforced nylon is added with the polyether amine as the flow improver, the flow property of the composition is greatly improved, and the reinforced nylon has processing advantages particularly for large and thin-wall nylon reinforced products for automobiles; and the added polyether amine has good compatibility with nylon, so that the mechanical property of the nylon composition is not influenced.
Description
Technical Field
The invention relates to the field of nylon compositions, in particular to a high-fluidity glass fiber reinforced nylon composition, and a preparation method and application thereof.
Background
The injection molding pressure, mold clamping force and injection molding temperature required by the high-fluidity reinforced nylon are lower, the processing period is shorter, the energy consumption of injection molding is lower, the glass fiber reinforced nylon is influenced by glass fibers, the processing fluidity is often low, and for large and thin-wall products, the fluidity of the glass fiber reinforced nylon is insufficient, and even the injection molding is difficult to complete;
at present, domestic enterprises have methods for improving the flowability of glass fiber reinforced nylon by using high-melt index nylon resin, adding hyperbranched resin and the like, but the mechanical property of the glass fiber reinforced nylon is often reduced; domestic enterprises also have a scheme (CN109627752A) of using organic peroxide dicumyl peroxide (DCP) and active additive triallyl isocyanurate (TAIC) as fluidity increasing agents, but the addition amount is larger, and the obvious effect is achieved only by 3 percent of the addition amount;
in order to avoid the influence on the material performance, the high fluidity is obtained under the condition of small addition amount, and the invention provides a high-fluidity glass fiber reinforced nylon composition, and a preparation method and application thereof.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a high-fluidity glass fiber reinforced nylon composition, and a preparation method and application thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
a high-flow glass fiber reinforced nylon composition comprises the following components in parts by weight: 60-80 parts of nylon resin, 20-40 parts of glass fiber, 0.1-2 parts of antioxidant, 0.1-3 parts of flow improver and 0-2 parts of light stabilizer.
Further, the nylon resin includes at least one of nylon 56, nylon 510, nylon 512, nylon 513, nylon 514, nylon 515, nylon 516, nylon 6, nylon 66, nylon 610, nylon 612, nylon 613, nylon 614, nylon 615, nylon 616, nylon 1010, nylon 1012, nylon 11, nylon 12, nylon 1013, nylon 1014, nylon 1015, nylon 1016, nylon 1210, nylon 1212, nylon 1213, nylon 1214, nylon 1215, and nylon 1216.
Further, the glass fiber is chopped glass fiber.
Further, the antioxidant is at least one of N, N' -bis- (3- (35-di-tert-butyl-4-hydroxyphenyl) propionyl) hexamethylenediamine, ethylene glycol bis-3- (3-tert-butyl-4-hydroxy-5-methylphenyl) propionate and tris (2, 4-di-tert-butylphenyl) phosphite.
Further, the flow improver is polyether amine (PEA), also called amine terminated polyether, ATPE for short, and contains primary amine groups connected to one end of the polyether main chain; the polyether main chain is composed of polyethylene glycol, polypropylene glycol, polytetramethylene glycol and copolymers thereof; including monoamine, diamine and triamine products.
Further, the light stabilizer is poly (1-hydroxyethyl-2, 2,6, 6-tetramethyl-4-hydroxypiperidine) succinate (BASF TINUVIN 622, structure formula)
A preparation method of a high-fluidity glass fiber reinforced nylon composition comprises the following steps:
adding nylon resin, an antioxidant, a flow improver and a light stabilizer into a high-speed mixer, and mixing for 5-10 minutes to obtain a material A;
adding the material A into a main hopper of a double-screw extruder, and feeding into the double-screw extruder through a main feeding weightless scale; adding short glass fibers into an auxiliary hopper of a double-screw extruder, carrying out side feeding on the double-screw extruder by an auxiliary feeding weightless feeding scale, and mixing and melting to obtain the high-fluidity glass fiber reinforced nylon composition.
Further, the temperatures of the zones of the twin-screw extruder are set to be: the temperature of the first zone is 180-220 ℃, the temperature of the second zone is 230-270 ℃, the temperature of the third zone is 230-270 ℃, the temperature of the fourth zone is 230-270 ℃, the temperature of the fifth zone is 230-270 ℃, the temperature of the sixth zone is 230-270 ℃, the temperature of the seventh zone is 230-270 ℃, the temperature of the eighth zone is 230-270 ℃, the temperature of the ninth zone is 230-270 ℃, and the temperature of the tenth zone is 230-270 ℃; the temperature of the machine head is 230 ℃ and 270 ℃; the screw rotating speed of the extruder is 200-800 r/min.
The high-flow glass fiber reinforced nylon composition is applied to thin-wall injection molding products.
The invention has the beneficial effects that:
1. the nylon resin in the composition is common nylon resin, and the composition is suitable for various nylon resins;
2. the polyether amine used in the invention is universal in type and easy to obtain, and has good compatibility with nylon materials, so that the mechanical property of the product is not influenced while the fluidity of the composition is greatly improved;
3. the composition has good thermal-oxidative aging resistance and light aging resistance, and good aging resistance due to the use of an antioxidant 1098, an antioxidant 245, an antioxidant 168, a light stabilizer 234, a light stabilizer 770 and a light stabilizer 622;
because the reinforced nylon is added with the polyether amine as the flow improver, the flow property of the composition is greatly improved, and the reinforced nylon has processing advantages particularly for large and thin-wall nylon reinforced products for automobiles; and the added polyether amine has good compatibility with nylon, so that the mechanical property of the nylon composition is not influenced.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
The high-flow glass fiber reinforced nylon composition comprises the following components in parts by weight: 60-80 parts of nylon resin, 20-40 parts of glass fiber, 0.1-2 parts of antioxidant, 0.1-3 parts of flow improver and 0-2 parts of light stabilizer;
a preparation method of a high-fluidity glass fiber reinforced nylon composition comprises the following steps:
s1, mixing, namely adding the nylon resin, the antioxidant, the flow improver and the light stabilizer into a high-speed mixer, and mixing for 5-10 minutes to obtain a material A;
s2, extruding and granulating, wherein the temperature of each zone of the double-screw extruder is set as follows: the temperature of the first zone is 180-220 ℃, the temperature of the second zone is 230-270 ℃, the temperature of the third zone is 230-270 ℃, the temperature of the fourth zone is 230-270 ℃, the temperature of the fifth zone is 230-270 ℃, the temperature of the sixth zone is 230-270 ℃, the temperature of the seventh zone is 230-270 ℃, the temperature of the eighth zone is 230-270 ℃, the temperature of the ninth zone is 230-270 ℃, and the temperature of the tenth zone is 230-270 ℃; the temperature of the machine head is 230 ℃ and 270 ℃; the rotating speed of the screw of the extruder is 200-;
s3, adding the mixed material A into a main hopper of a double-screw extruder, and feeding into the double-screw extruder through a main feeding weightless scale; adding short glass fibers into an auxiliary hopper of a double-screw extruder, feeding into the side feed of the double-screw extruder through an auxiliary feed weightless feed scale, and granulating to obtain the composition.
The nylon composition containing the components or the nylon composition prepared according to the method can be used for preparing thin-wall injection molding products.
Compositions were prepared according to the above preparation method, taking raw materials of different mass components, as in the following examples 1 to 9 and comparative examples 1 to 3, wherein S2: extrusion granulation, temperatures of zones of a twin-screw extruder were set to: the temperature of a first area is 200 ℃, the temperature of a second area is 250 ℃, the temperature of a third area is 250 ℃, the temperature of a fourth area is 250 ℃, the temperature of a fifth area is 250 ℃, the temperature of a sixth area is 250 ℃, the temperature of a seventh area is 250 ℃, the temperature of an eighth area is 250 ℃, the temperature of a ninth area is 250 ℃ and the temperature of a tenth area is 250 ℃; the temperature of the machine head is 250 ℃; the screw rotating speed of the extruder is 500 r/min:
example 1: 69 kg of Yuexing PA6 YH3400 with the relative viscosity of 3.4, 30 kg of chopped glass fiber ECS301HP (3mm) of Chongqing International composite Material Co., Ltd, 0.2 kg of antioxidant 1098, 0.1 kg of antioxidant 168, 0.5 kg of Hounsfield polyether amine T403 and 0.2 kg of German Basff 622 were granulated by a twin-screw extruder, and the injection-molded specimens were dried to test the melt index and the mechanical properties.
Example 2: 68.5 kg of Yuetization PA6 YH3400,30 kg of Chongqing International composite Material Co., Ltd, chopped glass fibers ECS301HP (3mm), 0.2 kg of antioxidant 1098, 0.1 kg of antioxidant 168, 1 kg of Hounsfield polyetheramine T403 and 0.2 kg of German Pasteur 622 were granulated by a twin-screw extruder, and the specimens were dried and injection-molded to test the melt index and mechanical properties.
Example 3: 67.5 kg of Yuetization PA6 YH3400,30 kg of Chongqing International composite Material Co., Ltd, chopped glass fibers ECS301HP (3mm), 0.2 kg of antioxidant 1098, 0.1 kg of antioxidant 168, 2 kg of Hounsfield polyether amine T403 and 0.2 kg of German Basff 622 were granulated by a twin-screw extruder, and subjected to drying and injection molding to obtain sample bars, and the melt index and mechanical properties were tested.
Example 4: 69 kg of Yuetization PA6 YH3400,30 kg of Chongqing International composite Material Co., Ltd, chopped glass fiber ECS301HP (3mm), 0.2 kg of antioxidant 1098, 0.1 kg of antioxidant 168, 0.5 kg of Hensmei polyether amine RP400 and 0.2 kg of German Basff 622 were granulated by a twin-screw extruder, and subjected to drying and injection molding to obtain sample bars, and the melt index and mechanical properties were tested.
Example 5: 68.5 kg of Yuetization PA6 YH3400,30 kg of Chongqing International composite Material Co., Ltd, chopped glass fibers ECS301HP (3mm), 0.2 kg of antioxidant 1098, 0.1 kg of antioxidant 168, 1 kg of Hounsfield polyether amine RP400 and 0.2 kg of German Basff 622 were granulated by a twin-screw extruder, and subjected to drying and injection molding to obtain sample bars, and the melt index and mechanical properties were tested.
Example 6: 67.5 kg of Yuetization PA6 YH3400,30 kg of Chongqing International composite Material Co., Ltd, chopped glass fibers ECS301HP (3mm), 0.2 kg of antioxidant 1098, 0.1 kg of antioxidant 168, 2 kg of Hounsfield polyether amine RP400 and 0.2 kg of German Basff 622 were granulated by a twin-screw extruder, and subjected to drying and injection molding to obtain sample bars, and the melt index and mechanical properties were tested.
Example 7: 79 kg of Shandong Guangbang whole range new material company PA 610F 120,20 kg of Chongqing International composite Material company short cut glass fiber ECS301HP (3mm), 0.2 kg of antioxidant 1098, 0.1 kg of antioxidant 168, 0.5 kg of Hounsfield polyether amine T403 and 0.2 kg of German Pasteur 622 are granulated by a double-screw extruder according to the preparation method, and the sample strips are dried and injection-molded, and the melt index, the flow length ratio and the mechanical property are tested.
Example 8: 78.5 kg of Shandong Guangbang whole range New Material Ltd PA 610F 120,20 kg of Chongqing International composite Material Ltd chopped glass fiber ECS301HP (3mm), 0.2 kg of antioxidant 1098, 0.1 kg of antioxidant 168, 1 kg of Hounsfield polyether amine T403 and 0.2 kg of German Pasteur 622 were granulated by a twin-screw extruder, and the sample bars were dried and injection-molded, and the melt ratio, the flow length ratio and the mechanical properties were tested.
Example 9: according to the preparation method, 77.5 kg of Shandong Guangbang whole-boundless new material company PA 610F 120,20 kg of Chongqing International composite Material company short cut glass fibers ECS301HP (3mm), 0.2 kg of antioxidant 1098, 0.1 kg of antioxidant 168, 2 kg of Hounsfield polyether amine T403 and 0.2 kg of German Pasteur 622 are granulated by a double-screw extruder, dried and injection-molded into sample strips, and the melt index, the flow length ratio and the mechanical property are tested.
Comparative example 1: 69.5 kg of Yuetized PA6 YH3400,30 kg of Chongqing International composite Material Co., Ltd, chopped glass fiber ECS301HP (3mm), 0.2 kg of antioxidant 1098, 0.1 kg of antioxidant 168 and 0.2 kg of German Basff 622 were granulated by a twin-screw extruder, and the specimens were dried and injection-molded, and the melt index and mechanical properties were tested.
Comparative example 2: 67.5 kg of Yuetization PA6 YH3400,30 kg of Chongqing International composite Material Co., Ltd, chopped glass fiber ECS301HP (3mm), 2 kg of BBSA,0.2 kg of antioxidant 1098, 0.1 kg of antioxidant 168 and 0.2 kg of German Basff 622 were granulated by a twin-screw extruder according to the above preparation method, and the sample strips were dried and injection-molded, and the melt index and mechanical properties were tested.
Comparative example 3: 79.5 kg of Shandong wide range new material company PA 610F 120,20 kg of Chongqing International composite Material company short cut glass fiber ECS301HP (3mm), 0.2 kg of antioxidant 1098, 0.1 kg of antioxidant 168 and 0.2 kg of German Basff 622 are granulated by a double-screw extruder, and sample bars are dried and injection molded, and the melt index, the flow length ratio and the mechanical property are tested.
The materials prepared in examples 1 to 9 and the melt index (275 ℃,5 kg test conditions) of comparative examples 1 to 3, the specific length of spiral flow (270 ℃, 40bar injection pressure, 30% speed, 2s injection time, 65mm storage position and 8mm injection position) and the mechanical properties were tested to obtain the following table.
| Performance of | Example 7 | Example 8 | Example 9 | Comparative example 3 |
| Melt index g/10min | 118.3 | 161.4 | 227 | 86.1 |
| Tensile strength Mpa | 161.6 | 155.1 | 162.7 | 166.7 |
| Elongation at break% | 3 | 3 | 3 | 3 |
| 23 ℃ notched impact strength KJ/m2 | 9.3 | 9.4 | 7.9 | 8.2 |
| Notched impact strength KJ/m at-30 DEG C2 | 7.3 | 7.5 | 7.1 | 8.1 |
| Tensile modulus MPa | 10521 | 9866 | 10690 | 10584 |
| Helical flow length cm | 40.8 | 50.3 | 62.7 | 31.3 |
As can be seen from the above table, the invention can greatly improve the flow property of the composition by adding the polyether amine flow improver to the reinforced nylon resin, and simultaneously maintain the mechanical property of the material.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. The high-fluidity glass fiber reinforced nylon composition is characterized by comprising the following components in parts by weight: 60-80 parts of nylon resin, 20-40 parts of glass fiber, 0.1-2 parts of antioxidant, 0.1-3 parts of flow improver and 0-2 parts of light stabilizer.
2. The high flow fiberglass reinforced nylon composition of claim 1, wherein said nylon resin comprises at least one of nylon 56, nylon 510, nylon 512, nylon 513, nylon 514, nylon 515, nylon 516, nylon 6, nylon 66, nylon 610, nylon 612, nylon 613, nylon 614, nylon 615, nylon 616, nylon 1010, nylon 1012, nylon 11, nylon 12, nylon 1013, nylon 1014, nylon 1015, nylon 1016, nylon 1210, nylon 1212, nylon 1213, nylon 1214, nylon 1215, and nylon 1216.
3. The high flow glass fiber reinforced nylon composition of claim 1, wherein the glass fiber is chopped glass fiber.
4. The high flow fiberglass reinforced nylon composition of claim 1, wherein said antioxidant is at least one of N, N' -bis- (3- (35-di-tert-butyl-4-hydroxyphenyl) propionyl) hexanediamine, ethylene glycol bis-3- (3-tert-butyl-4-hydroxy-5-methylphenyl) propionate, and tris (2, 4-di-tert-butylphenyl) phosphite.
5. The high flow fiberglass reinforced nylon composition of claim 1, wherein said flow improver is a polyetheramine.
6. The high flow glass fiber reinforced nylon composition of claim 1, wherein the light stabilizer is at least one of poly (1-hydroxyethyl-2, 2,6, 6-tetramethyl-4-hydroxypiperidine) succinate, bis (2,2,6, 6-tetramethyl-4-piperidine) or 2- (2H-benzotriazol-2-yl) -4, 6-bis (1-methyl-1-phenylethyl) phenol.
7. The method for preparing a high flow glass fiber reinforced nylon composition as claimed in any one of claims 1 to 6, comprising the steps of:
adding nylon resin, an antioxidant, a flow improver and a light stabilizer into a high-speed mixer, and mixing for 5-10 minutes to obtain a material A;
adding the material A into a main hopper of a double-screw extruder, and feeding the material A into the double-screw extruder through a main feeding weightlessness scale; adding short glass fibers into an auxiliary hopper of a double-screw extruder, carrying out side feeding on the double-screw extruder by an auxiliary feeding weightless feeding scale, and mixing and melting to obtain the high-fluidity glass fiber reinforced nylon composition.
8. The method for preparing the high flow glass fiber reinforced nylon composition of claim 7, wherein the temperatures of the zones of the twin-screw extruder are set as follows: the temperature of the first zone is 180-220 ℃, the temperature of the second zone is 230-270 ℃, the temperature of the third zone is 230-270 ℃, the temperature of the fourth zone is 230-270 ℃, the temperature of the fifth zone is 230-270 ℃, the temperature of the sixth zone is 230-270 ℃, the temperature of the seventh zone is 230-270 ℃, the temperature of the eighth zone is 230-270 ℃, the temperature of the ninth zone is 230-270 ℃, and the temperature of the tenth zone is 230-270 ℃; the temperature of the machine head is 230 ℃ and 270 ℃; the screw rotating speed of the extruder is 200-800 r/min.
9. Use of a high flow glass fiber reinforced nylon composition as claimed in any of claims 1 to 6 in thin wall injection molded articles.
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| CN202210272070.7A CN114437383A (en) | 2022-03-18 | 2022-03-18 | High-fluidity glass fiber reinforced nylon composition and preparation method and application thereof |
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| CN202210272070.7A CN114437383A (en) | 2022-03-18 | 2022-03-18 | High-fluidity glass fiber reinforced nylon composition and preparation method and application thereof |
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|---|---|---|---|---|
| CN105400187A (en) * | 2015-11-05 | 2016-03-16 | 东华大学 | High-fluidity polyamide composition and preparation method thereof |
| CN106995606A (en) * | 2016-01-26 | 2017-08-01 | 合肥杰事杰新材料股份有限公司 | A kind of dissaving polymer modified polyamide composite and preparation method thereof |
| CN111019334A (en) * | 2019-12-24 | 2020-04-17 | 上海中镭新材料科技有限公司 | Glass fiber reinforced polyamide material and preparation method and application thereof |
| CN111087804A (en) * | 2019-12-18 | 2020-05-01 | 南京聚隆科技股份有限公司 | Flame-retardant nylon material for 5G base station and preparation method thereof |
-
2022
- 2022-03-18 CN CN202210272070.7A patent/CN114437383A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105400187A (en) * | 2015-11-05 | 2016-03-16 | 东华大学 | High-fluidity polyamide composition and preparation method thereof |
| CN106995606A (en) * | 2016-01-26 | 2017-08-01 | 合肥杰事杰新材料股份有限公司 | A kind of dissaving polymer modified polyamide composite and preparation method thereof |
| CN111087804A (en) * | 2019-12-18 | 2020-05-01 | 南京聚隆科技股份有限公司 | Flame-retardant nylon material for 5G base station and preparation method thereof |
| CN111019334A (en) * | 2019-12-24 | 2020-04-17 | 上海中镭新材料科技有限公司 | Glass fiber reinforced polyamide material and preparation method and application thereof |
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