CN113583436A - Nylon material, nylon rope guide and preparation method of nylon material - Google Patents
Nylon material, nylon rope guide and preparation method of nylon material Download PDFInfo
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- CN113583436A CN113583436A CN202110918537.6A CN202110918537A CN113583436A CN 113583436 A CN113583436 A CN 113583436A CN 202110918537 A CN202110918537 A CN 202110918537A CN 113583436 A CN113583436 A CN 113583436A
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- 239000004677 Nylon Substances 0.000 title claims abstract description 190
- 229920001778 nylon Polymers 0.000 title claims abstract description 190
- 239000000463 material Substances 0.000 title claims abstract description 79
- 238000002360 preparation method Methods 0.000 title abstract description 10
- 239000012745 toughening agent Substances 0.000 claims abstract description 106
- 239000003365 glass fiber Substances 0.000 claims abstract description 52
- 238000002156 mixing Methods 0.000 claims abstract description 50
- 238000001035 drying Methods 0.000 claims abstract description 41
- 239000000203 mixture Substances 0.000 claims abstract description 30
- 239000002994 raw material Substances 0.000 claims abstract description 21
- 238000002844 melting Methods 0.000 claims abstract description 11
- 230000008018 melting Effects 0.000 claims abstract description 11
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 239000011521 glass Substances 0.000 claims description 36
- 239000011324 bead Substances 0.000 claims description 32
- 238000010438 heat treatment Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 13
- 238000003860 storage Methods 0.000 claims description 11
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical group O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 6
- 239000004005 microsphere Substances 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 239000013590 bulk material Substances 0.000 claims description 2
- 239000002131 composite material Substances 0.000 abstract description 3
- 238000003756 stirring Methods 0.000 description 16
- 239000004952 Polyamide Substances 0.000 description 13
- 229920002647 polyamide Polymers 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 10
- 150000001875 compounds Chemical class 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 239000000835 fiber Substances 0.000 description 5
- 239000000523 sample Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 239000012768 molten material Substances 0.000 description 2
- 239000004953 Aliphatic polyamide Substances 0.000 description 1
- 229920006052 Chinlon® Polymers 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 229920003231 aliphatic polyamide Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000006367 bivalent amino carbonyl group Chemical group [H]N([*:1])C([*:2])=O 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 210000001320 hippocampus Anatomy 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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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
- C08L77/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
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Abstract
The invention belongs to the field of composite materials, and particularly relates to a nylon material, a nylon rope guide and a preparation method of the nylon material, wherein the preparation raw materials of the nylon material comprise: nylon, toughening agent and glass fiber. The preparation method of the nylon raw material comprises the following steps: respectively drying the nylon and the toughening agent; uniformly mixing the dried nylon and the toughening agent; melting and mixing a mixture formed by mixing the nylon and the toughening agent with glass fibers in a high-temperature extruder; controlling the high-temperature extruder to extrude the molten mixture; and cooling the molten mixture extruded by the high-temperature extruder to prepare and form the nylon material. The toughening agent is added in the nylon and the glass fiber, the bonding strength of the nylon and the glass fiber can be well improved by utilizing the toughening agent, and the nylon material with high toughness and good wear resistance can be prepared.
Description
Technical Field
The invention relates to the field of materials, in particular to a nylon material, a nylon rope guide and a preparation method of the nylon material.
Background
Nylon is a term for polyamide fiber (nylon) and can be made into long fibers or short fibers. Chinlon is a trade name of Polyamide fiber, also called Nylon (Nylon) and called Polyamide (PA) in English, and the basic constituent substance of the Polyamide fiber is aliphatic Polyamide connected by amido bond- (NHCO).
Nylon is an engineering plastic with the widest application and most varieties, has good mechanical property, heat resistance, wear resistance, chemical solvent resistance, self-lubricity and certain flame retardance, has excellent processing property, can be integrally molded into complex structural parts, and is widely applied to the fields of automobiles, electronic and electric appliances, machinery, rail transit, sports equipment and the like. But the disadvantage of abrasion resistance limits the range of applications for nylon materials.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a nylon material, a nylon rope guide and a preparation method of the nylon material. The nylon material, the nylon rope guide and the preparation method of the nylon material can improve the wear resistance and the low-temperature impact resistance of the nylon material to a certain extent.
The invention is realized by the following technical scheme: .
The invention provides a nylon material, which is prepared from the following raw materials in parts by weight: nylon, toughening agent and glass fiber.
In one embodiment, the nylon material is prepared from the following raw materials in parts by weight: 80-120 parts of nylon, 8-20 parts of a toughening agent and 8-45 parts of glass fiber.
In one embodiment, the raw materials for preparing the nylon material further comprise hollow glass beads.
In one embodiment, the hollow glass microspheres have a diameter of 15-30um and the glass fibers have a diameter of 14um, with a typical linear density of 2000.
In one embodiment, the nylon material is prepared from the following raw materials in parts by weight: the nylon material comprises: 80-120 parts of nylon, 8-20 parts of a toughening agent, 8-45 parts of glass fiber and 3-15 parts of hollow glass beads.
In one embodiment, the toughening agent is maleic anhydride grafted.
The invention provides a nylon rope guide, which comprises a nylon piece made of the nylon material in each embodiment.
The invention provides a preparation method of a nylon material according to the above embodiments, the method comprising:
nylon and a toughening agent are respectively placed in drying equipment for drying, the drying equipment comprises a rack, a drying bin is arranged on the rack, the drying bin comprises an outer barrel and an inner barrel which are coaxially arranged, a drying cavity is formed between the outer barrel and the inner barrel, a feed inlet communicated with the drying cavity is formed in the top of the drying bin, a drive shaft is arranged on the rack corresponding to the top of the inner barrel and connected with a drive motor, a plurality of conical material dispersing discs are arranged on the outer side wall of the inner barrel, a material receiving cone is arranged on the inner wall of the outer barrel corresponding to the position under the conical material dispersing discs, a discharge port is formed in the bottom of the outer barrel, a discharge pipe is connected to the bottom of the discharge port, one end of the discharge pipe is connected with a fan, and the middle of the discharge pipe is communicated with the discharge port;
a plurality of heat flow pipelines are uniformly arranged in the side wall of the outer barrel around the shaft, the heat flow pipelines are spirally arranged, a heating pipeline is arranged at the bottom of the outer barrel, a heater is arranged in the heating pipeline, the heat flow pipelines are connected with the heat flow pipelines, and the heat flow pipelines are connected with an external heater;
uniformly mixing the dried nylon and the toughening agent, wherein an injection mechanism for adding the toughening agent is arranged on the inner cylinder, the injection mechanism comprises a storage pipe arranged in the inner cylinder, the top of the storage pipe is connected with a feeding pipe, the feeding pipe extends out of a feeding hole, and a material spraying head communicated with the storage pipe is uniformly arranged on the inner cylinder at a position corresponding to the lower part of the conical bulk material plate around a shaft;
melting and mixing a mixture formed by mixing the nylon and the toughening agent with glass fibers in a high-temperature extruder;
controlling the high-temperature extruder to extrude the molten mixture;
cooling the molten mixture extruded by the high-temperature extruder to prepare and form the nylon material
In one embodiment, uniformly mixing the dried nylon with the toughening agent comprises:
premixing the dried nylon and the toughening agent;
adding hollow glass beads into the premixed nylon and the toughening agent;
uniformly mixing the hollow glass beads, the nylon and the toughening agent;
melting and mixing a mixture formed by mixing the nylon and the toughening agent with glass fibers in a high-temperature extruder, wherein the method comprises the following steps:
and melting and mixing a mixture formed by mixing the nylon, the hollow glass beads and the toughening agent with the glass fiber in a high-temperature extruder.
In one embodiment, the nylon has a viscosity greater than 2.5.
The invention has the beneficial effects that:
1. the toughening agent is added in the nylon and the glass fiber, so that the bonding strength of the nylon and the glass fiber can be well improved by utilizing the toughening agent, and the nylon material with high toughness and good wear resistance can be prepared;
2. the invention uses the glass beads to reduce the warping of the rope guider during use and reduce the weight of the rope guider.
3. The invention uses the double-graft compatible toughening agent POE-g-MAH (maleic anhydride grafting), improves the compatibility of nylon and glass fiber, and further improves the mechanical property of the nylon sample prepared by the invention.
Drawings
Fig. 1 is a schematic flow chart of a method for preparing a nylon material according to an embodiment of the present invention.
FIG. 2 is a schematic view of a drying apparatus;
fig. 3 is a plan view of the outer cylinder.
The device comprises a machine frame 1, a drying bin 2, a discharging pipe 3, a fan 4, a discharging port 5, an outer barrel 6, an inner barrel 7, a drying chamber 8, a conical scattering disk 9, a material receiving cone 10, a stirring rod 11, a material injection mechanism 12, a material storage pipe 13, a material spraying head 14, a heat flow pipeline 15, a heating pipeline 16 and an external heater 17.
Detailed Description
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in 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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
s1, placing nylon PA6 (product YH800 produced by chemical corporation of Yue chemical lake) in drying equipment at 80 ℃ for drying for 12 hours; placing the compatible toughening agent POE-g-MAH (a product in the morning in the embodiment) in a drying device at 80 ℃ for drying for 8 hours; the drying equipment has the material drying and stirring integrated functions, and comprises a rack 1, a drying bin 2 is installed on the rack, the drying bin comprises an outer barrel 6 and an inner barrel 7 which are coaxially installed, a drying chamber 8 is formed between the outer barrel and the inner barrel, an injection mechanism 12 for adding a toughening agent is installed on the inner barrel, the injection mechanism comprises a storage pipe 13 installed inside the inner barrel, the top of the storage pipe is connected with a feeding pipe, the feeding pipe extends out of a feeding port, and a material spraying head 14 communicated with the storage pipe is uniformly installed below a corresponding conical scattering disk on the inner barrel around a shaft; the nylon PA6 is dried in the drying chamber, and the compatible toughening agent POE-g-MAH is dried in the storage pipe, so that on one hand, the synchronous drying effect is realized, the production efficiency is improved, and meanwhile, the subsequent stirring can be realized; a feeding hole communicated with the drying cavity is formed in the top of the drying bin, a driving shaft is mounted on the rack corresponding to the top of the inner barrel and connected with a driving motor, a plurality of conical material scattering discs 9 are mounted on the outer side wall of the inner barrel, a material receiving cone 10 is mounted on the inner wall of the outer barrel corresponding to the position right below the conical material scattering discs, a plurality of stirring rods 11 are further mounted on the outer side wall of the inner barrel, and materials are stirred through the stirring rods; the inner barrel is driven to rotate by the driving motor, so that the stirring rod can stir and treat materials, the material scattering disk and the material receiving cone are matched with each other to disperse and dry the materials, the discharge port 5 is formed in the bottom of the outer barrel, the discharge pipe 3 is connected to the bottom of the discharge port, one end of the discharge pipe is connected with the fan 4, the middle of the discharge pipe is communicated with the discharge port, and the discharge port of the equipment adopts siphon type discharge, so that the discharge efficiency can be greatly improved, and material blockage can be prevented; a plurality of heat flow pipelines 15 are uniformly arranged in the side wall of the outer barrel around a shaft, the heat flow pipelines are spirally arranged, a heating pipeline 16 is arranged at the bottom of the outer barrel, a heater is arranged in each heating pipeline, each heat flow pipeline is connected with each heat flow pipeline, each heat flow pipeline is connected with an external heater 17, the external heaters are used for mainly heating and supplying heat to heat sources in the heat flow pipelines, the heaters in the heating pipelines are used for maintaining the temperature, and the power consumption burden of internal heating equipment can be reduced due to the double-heating structure design;
s2, mixing PA 6100 parts according to a set proportion; 5 parts of a compatible toughening agent; fully mixing the raw materials in the production equipment for 5-7 minutes;
and S3, adding the nylon PA6 and the compatible toughening agent which are fully mixed in the production equipment into a double-screw high-temperature extruder through a weightless feeder, directly adding 30 parts of long glass fiber into a double screw through a glass fiber feed opening, and carrying out high-temperature melting, mixing, extruding, bracing and granulating to obtain a nylon sample.
Further, in order to improve the strength of the reinforced and toughened nylon obtained, in the present embodiment, the nylon PA6 adopts medium and high viscosity nylon PA6 with viscosity not less than 2.7.
Furthermore, in order to improve the toughness of the composite material and the compatibility of each component, the compatible toughening agent is a dual-graft compatible toughening agent POE-g-MAH (maleic anhydride grafted).
Example 2:
the present embodiment differs from the above embodiments in that: the formula of the reinforced and toughened nylon for manufacturing the rope guider comprises the following raw materials in parts by weight: nylon PA 6100 parts; 5 parts of a compatible toughening agent; 25 parts of direct yarn long glass fiber
Example 3:
the present embodiment differs from the above embodiments in that: the formula of the reinforced and toughened nylon for manufacturing the rope guider comprises the following raw materials in parts by weight: nylon PA 6100 parts; 5 parts of a compatible toughening agent; 20 parts of direct yarn long glass fiber
Example 4:
the present embodiment differs from the above embodiments in that: the formula of the reinforced and toughened nylon for manufacturing the rope guider comprises the following raw materials in parts by weight: nylon PA 6100 parts; 7 parts of a compatible toughening agent; 20 parts of direct yarn long glass fiber
Example 5:
the present embodiment differs from the above embodiments in that: the formula of the reinforced and toughened nylon for manufacturing the rope guider comprises the following raw materials in parts by weight: nylon PA 6100 parts; 10 parts of a compatible toughening agent; 20 parts of direct yarn long glass fiber
From the above examples, it can be seen that, with the increase of the amount of hollow glass beads in the raw materials, the tensile strength and the notch impact strength of the prepared nylon material are reduced, and due to the increase of the hollow glass beads, the warping property of the prepared nylon material can be reduced, so that the surface of the nylon material is flat, and in order to balance the warping property of the nylon material and the flatness of the nylon material, the formula of each raw material adopted in the present invention is as follows: the nylon material comprises the following raw materials in parts by weight: 100 parts of nylon, 5 parts of a toughening agent, 12 parts of glass fiber and 8 parts of hollow glass beads.
As can be seen from examples 1-5 in the table: the density of the product is increased and the weight is increased by the addition of the long glass fibers directly. The addition of a compatible toughening agent increases the impact strength of the product but decreases the tensile strength of the product. The preferred embodiment for balancing toughness and density is example 3. But the size of the manufactured sample material which is injection molded into the rope guide device is warped, and the following steps are further optimized:
example 6
S1, placing nylon PA6 (YH 800 product of chemical industry Co., Ltd. in south lake of Yue) in a drying device at a temperature of 80 ℃ for drying for 12 hours; placing a compatible toughening agent POE-g-MAH (a product in the morning in the embodiment) in a drying device at 80 ℃ for drying for 8 hours, wherein the structure of the drying device is the same as that in the embodiment 1;
s2, mixing PA 6100 parts according to a set proportion; 5 parts of a compatible toughening agent; adding a proper amount of white oil, fully mixing for 3 minutes in a high-speed mixer, adding 5 parts of hollow glass beads (the diameter is 15-30 mu m), and fully mixing for 5-7 minutes in the high-speed mixer;
and S3, adding the nylon PA66, the compatible toughening agent and the hollow glass beads which are fully mixed in the high-speed mixer into a double-screw high-temperature extruder through a weightless feeder, directly adding 15 parts of long glass fibers into the double-screw high-temperature extruder through a glass fiber feed opening, and extruding, bracing and granulating the mixture through double screws to obtain a nylon sample.
Further, in order to improve the strength of the reinforced and toughened nylon obtained, in the present embodiment, the nylon PA6 adopts medium and high viscosity nylon PA6 with viscosity not less than 2.7.
Furthermore, in order to improve the toughness of the composite material and the compatibility of each component, the compatible toughening agent is a dual-graft compatible toughening agent POE-g-MAH (maleic anhydride grafted).
Example 7
The present embodiment differs from the above embodiments in that: the formula of the reinforced and toughened nylon for manufacturing the rope guider comprises the following raw materials in parts by weight: nylon PA 6100 parts; 5 parts of a compatible toughening agent; 8 parts of hollow glass beads, 12 parts of direct yarn length glass fibers.
Example 8
The present embodiment differs from the above embodiments in that: the formula of the reinforced and toughened nylon for manufacturing the rope guider comprises the following raw materials in parts by weight: nylon PA 6100 parts; 5 parts of a compatible toughening agent; 11 parts of hollow glass beads and 9 parts of direct yarn length glass fibers.
As can be seen from the samples prepared in examples 6 to 8 in the table, the rope guide was injection molded, and the warpage of the injection molded product was improved by adding hollow glass beads to nylon, but the tensile strength and impact strength of the product were reduced by adding hollow glass beads. Since the hollow glass beads are likely to sink during the stirring process, the hollow glass beads are unevenly distributed in the mixture, and the preferred embodiment is embodiment 8 in order to balance the tensile strength, the impact strength and the convenience of production.
An embodiment of the present invention provides a nylon rope guide, which includes a nylon member made of the nylon material described in the above embodiments.
When utilizing the rope guide, the rope guide can constantly rub with the rope, and this requires that the rope guide will have good wearability, and difficult deformation is down controlled in the friction of rope. Because the rope guider directly contacts with the rope, in order to prevent the rope from being worn off by the rope guider in the friction process, the surface of the rope guider needs to be smooth and flat. The nylon material prepared from the raw materials in the embodiment has good wear resistance and smooth surface, and can meet the use requirements of the rope guider.
An embodiment of the present invention improves the preparation method of the nylon material in the above embodiment, and as shown in fig. 1, the method includes the following steps S1-S5.
Step S1: and respectively drying the nylon and the toughening agent.
By respectively drying the nylon and the toughening agent, the toughening agent can be prevented from being grafted on the nylon under the influence of moisture in the nylon or the toughening agent in a molten state, and the tensile strength and the interface impact strength of the produced nylon material are reduced.
In step S1, the nylon and the toughening agent are respectively dried, including: and (3) putting the nylon into a 65-90-degree vacuum oven to bake for 10-14 hours so as to fully evaporate the water in the nylon.
The nylon used in the present invention includes: nylon A66 produced by Hippocampus of Henan or nylon A6 produced by chemical industries of Hunan province.
In one example, the nylon is baked in an 80 degree vacuum oven for 12 hours to fully evaporate the water in the nylon.
In step S1, the nylon and the toughening agent are respectively dried, including: and (3) placing the toughening agent in a 65-90-degree vacuum oven for baking for 7-10 hours so as to fully evaporate the moisture in the toughening agent.
In one embodiment, the toughening agent is baked in an 80 degree vacuum oven for 8 hours to fully evaporate the water in the toughening agent.
In order to prevent the toughening agent from deteriorating, the drying time of the toughening agent is correspondingly shorter than that of nylon.
The toughening agent comprises maleic anhydride grafting (POE-g-MAH).
Step S2: and uniformly mixing the dried nylon and the toughening agent.
By uniformly mixing the nylon and the toughening agent, the toughening agent can be uniformly grafted on the nylon in the subsequent melting process.
In one embodiment, in step S2, the step of uniformly mixing the dried nylon with the toughening agent includes: 80-120 parts of nylon; 3-20 parts of toughening agent are uniformly mixed.
In one embodiment, at step S2, 80-120 parts by weight of nylon; 3-20 parts of toughening agent are uniformly mixed, and the method comprises the following steps: 80-120 parts of nylon; 3-20 parts of toughening agent are put into a high-speed mixer to be fully mixed for 5-7 minutes.
Step S3: melting and mixing a mixture formed by mixing the nylon and the toughening agent and glass fibers in a high-temperature extruder;
at step S3, the compound formed by mixing the nylon with the toughening agent and the glass fiber are melt mixed in a high temperature extruder, including: and at the temperature of 200-300 ℃, the mixture formed by mixing the nylon and the toughening agent and the glass fiber are melted and mixed in a high-temperature extruder.
The melt mixing temperature of the mixture formed by mixing the nylon and the toughening agent and the glass fiber is between 200 ℃ and 300 ℃. At the temperature of 200-300 ℃, the nylon and the toughening agent are melted, and the glass fiber is not melted.
Before melt-mixing the compound formed by mixing the nylon and the toughening agent and the glass fiber in the high-temperature extruder, in step S3, the method further comprises: adding a mixture of nylon and a toughening agent into a hopper of a high-temperature extruder; adding glass fiber into a hopper of a high-temperature extruder; heating the hopper of the high-temperature extruder to 200-300 ℃, preserving heat for 10-20min, and stirring the hopper while preserving heat so as to ensure that the glass fiber in the hopper is uniformly distributed in the molten material of the nylon and the toughening agent.
The stirring rod is arranged in the hopper, when the hopper is heated and the hopper is subjected to heat preservation, the nylon, the glass fiber and the toughening agent in the hopper are stirred by the stirring rod, and the rotating speed of the stirring rod is 3000 revolutions per minute during stirring.
At step S3, the compound formed by mixing the nylon with the toughening agent and the glass fiber are melt mixed in a high temperature extruder, including: according to the weight portion, 80-120 portions of nylon and 3-20 portions of toughening agent are mixed to form a mixture, and 8-45 portions of glass fiber are melted and mixed in a high-temperature extruder.
Step S4: and controlling the high-temperature extruder to extrude the molten mixture.
In step S4, the high temperature extruder is controlled to extrude the molten mixture, and the newspaper rack: and controlling a high-temperature extruder to extrude a molten mixture formed by mixing the nylon, the toughening agent and the glass fiber in the high-temperature extruder.
Step S5: and cooling the molten mixture extruded by the high-temperature extruder to prepare and form the nylon material.
The temperature of the molten compound extruded from the high temperature extruder is between 200 and 300 ℃. The molten mixture is cooled and shaped to form the nylon material.
In the invention, the high-temperature extruder in the natural cooling area extrudes the molten mixture.
In one embodiment, at step S2, the step of uniformly mixing the dried nylon and the toughening agent includes: step S21: premixing the dried nylon and the toughening agent; step S22: adding hollow glass beads into the premixed nylon and the toughening agent; step S23: and uniformly mixing the hollow glass beads, the nylon and the toughening agent.
In one embodiment, at step S21, the dried nylon is premixed with the toughening agent, including: and mixing 80-120 parts by weight of the dried nylon, white oil and 3-20 parts by weight of the toughening agent in a high-speed mixer for 3-10 min. At step S23, adding hollow glass beads to the pre-mixed nylon and toughening agent, comprising: adding 3-15 parts of the hollow glass beads into the premixed nylon and the toughening agent; in step 23, the hollow glass beads, the nylon and the toughening agent are uniformly mixed, and the hollow glass beads, the nylon and the toughening agent are mixed in a high-speed mixer for 5-7 min.
The high-speed mixer is provided with a stirring rod, and the rotating speed of the stirring rod is 1000-3000 r/min.
At step S3, melt mixing the compound formed by mixing the nylon and the toughening agent with glass fiber in a high temperature extruder, comprising: and melting and mixing a mixture formed by mixing the nylon, the hollow glass beads and the toughening agent with the glass fiber in a high-temperature extruder.
In step S3, before the compound formed by mixing the nylon, the hollow glass beads and the toughening agent and the glass fiber are melt-mixed in the high-temperature extruder, the method further includes: adding a mixture of nylon, hollow glass beads and a toughening agent into a hopper of a high-temperature extruder; adding glass fiber into a hopper of a high-temperature extruder; heating the hopper of the high-temperature extruder to 200-300 ℃, preserving heat for 10-20min, and stirring the hopper while preserving heat so as to ensure that the glass fibers and the glass hollow microspheres in the hopper are uniformly distributed in the molten material of the nylon and the toughening agent.
In one embodiment, the mixture of the nylon, the hollow glass microspheres and the toughening agent is melt mixed with glass fibers in a high temperature extruder, comprising: and melting and mixing a mixture formed by mixing 80-100 parts of the nylon, 3-20 parts of the hollow glass beads and 3-20 parts of the toughening agent with 8-45 parts of glass fibers in a high-temperature extruder.
In this embodiment, the nylon used is a high viscosity nylon, and the viscosity of the nylon is greater than 2.5. The high-viscosity nylon can improve the tensile strength and the impact strength of the prepared nylon material.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (10)
1. The nylon material is characterized in that the nylon material is prepared from the following raw materials: nylon, toughening agent and glass fiber.
2. The nylon material of claim 1, wherein the nylon material is prepared from the following raw materials in parts by weight: 80-120 parts of nylon, 3-20 parts of a toughening agent and 8-45 parts of glass fiber.
3. The nylon material of claim 1, wherein the raw materials for preparing the nylon material further comprise hollow glass beads.
4. The nylon material of claim 3, wherein the hollow glass microspheres have a diameter of 15-30um, and the glass fibers have a diameter of 14um and a typical linear density of 2000.
5. The nylon material of claim 3, wherein the raw materials for preparing the nylon material comprise the following components in percentage by weight: the nylon material comprises: 80-120 parts of nylon, 3-20 parts of a toughening agent, 8-45 parts of glass fiber and 3-15 parts of hollow glass beads.
6. The nylon material of claim 1, wherein the toughening agent is maleic anhydride grafted.
7. A nylon cord guide comprising a nylon member made of the nylon material of any one of claims 1-6.
8. The method of preparing a nylon material of any of claims 1-6, comprising:
step A: nylon and a toughening agent are respectively placed in drying equipment for drying, the drying equipment comprises a rack, a drying bin is arranged on the rack, the drying bin comprises an outer barrel and an inner barrel which are coaxially arranged, a drying cavity is formed between the outer barrel and the inner barrel, a feed inlet communicated with the drying cavity is formed in the top of the drying bin, a drive shaft is arranged on the rack corresponding to the top of the inner barrel and connected with a drive motor, a plurality of conical material dispersing discs are arranged on the outer side wall of the inner barrel, a material receiving cone is arranged on the inner wall of the outer barrel corresponding to the position under the conical material dispersing discs, a discharge port is formed in the bottom of the outer barrel, a discharge pipe is connected to the bottom of the discharge port, one end of the discharge pipe is connected with a fan, and the middle of the discharge pipe is communicated with the discharge port;
a plurality of heat flow pipelines are uniformly arranged in the side wall of the outer barrel around the shaft, the heat flow pipelines are spirally arranged, a heating pipeline is arranged at the bottom of the outer barrel, a heater is arranged in the heating pipeline, the heat flow pipelines are connected with the heat flow pipelines, and the heat flow pipelines are connected with an external heater;
and B: uniformly mixing the dried nylon and the toughening agent, wherein an injection mechanism for adding the toughening agent is arranged on the inner cylinder, the injection mechanism comprises a storage pipe arranged in the inner cylinder, the top of the storage pipe is connected with a feeding pipe, the feeding pipe extends out of a feeding hole, and a material spraying head communicated with the storage pipe is uniformly arranged on the inner cylinder at a position corresponding to the lower part of the conical bulk material plate around a shaft;
and C: melting and mixing a mixture formed by mixing the nylon and the toughening agent with glass fibers in a high-temperature extruder;
step D: controlling the high-temperature extruder to extrude the molten mixture;
step E: and cooling the molten mixture extruded by the high-temperature extruder to prepare and form the nylon material.
9. The method for preparing the nylon material according to claim 8, wherein the step of uniformly mixing the dried nylon and the toughening agent comprises the following steps:
premixing the dried nylon and the toughening agent;
adding hollow glass beads into the premixed nylon and the toughening agent;
uniformly mixing the hollow glass beads, the nylon and the toughening agent;
melting and mixing a mixture formed by mixing the nylon and the toughening agent with glass fibers in a high-temperature extruder, wherein the method comprises the following steps:
and melting and mixing a mixture formed by mixing the nylon, the hollow glass beads and the toughening agent with the glass fiber in a high-temperature extruder.
10. The method of claim 8, wherein the nylon has a viscosity of greater than 2.5.
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| CN202110918537.6A CN113583436A (en) | 2021-08-11 | 2021-08-11 | Nylon material, nylon rope guide and preparation method of nylon material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115431491A (en) * | 2022-08-30 | 2022-12-06 | 滁州燕荣塑料科技有限公司 | Reinforced and toughened nylon material forming and processing machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115431491A (en) * | 2022-08-30 | 2022-12-06 | 滁州燕荣塑料科技有限公司 | Reinforced and toughened nylon material forming and processing machine |
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