CN112480629A - Special material for bobbin and preparation method thereof - Google Patents
Special material for bobbin and preparation method thereof Download PDFInfo
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- CN112480629A CN112480629A CN202011326423.4A CN202011326423A CN112480629A CN 112480629 A CN112480629 A CN 112480629A CN 202011326423 A CN202011326423 A CN 202011326423A CN 112480629 A CN112480629 A CN 112480629A
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- 239000000463 material Substances 0.000 title claims abstract description 55
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 239000004417 polycarbonate Substances 0.000 claims abstract description 53
- 229920000515 polycarbonate Polymers 0.000 claims abstract description 53
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 25
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 25
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 23
- 239000012745 toughening agent Substances 0.000 claims abstract description 21
- -1 polyethylene Polymers 0.000 claims abstract description 20
- 239000004698 Polyethylene Substances 0.000 claims abstract description 19
- 229920000573 polyethylene Polymers 0.000 claims abstract description 19
- 239000000314 lubricant Substances 0.000 claims abstract description 14
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 12
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 11
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 claims abstract description 10
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims abstract description 8
- 230000002180 anti-stress Effects 0.000 claims abstract description 6
- 239000012628 flowing agent Substances 0.000 claims abstract description 4
- 125000003118 aryl group Chemical group 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 239000004611 light stabiliser Substances 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 8
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 229920001296 polysiloxane Polymers 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 239000000498 cooling water Substances 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 5
- 238000001291 vacuum drying Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 4
- 239000000654 additive Substances 0.000 claims description 2
- 238000004806 packaging method and process Methods 0.000 claims description 2
- 238000005453 pelletization Methods 0.000 claims description 2
- 238000012216 screening Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 13
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 13
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 13
- 229920000642 polymer Polymers 0.000 description 8
- 239000002904 solvent Substances 0.000 description 7
- 238000005520 cutting process Methods 0.000 description 6
- 238000005469 granulation Methods 0.000 description 6
- 230000003179 granulation Effects 0.000 description 6
- 230000006750 UV protection Effects 0.000 description 4
- 238000005336 cracking Methods 0.000 description 4
- 229920002521 macromolecule Polymers 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 4
- 239000004721 Polyphenylene oxide Substances 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 229920006380 polyphenylene oxide Polymers 0.000 description 3
- 238000007873 sieving Methods 0.000 description 3
- 238000009461 vacuum packaging Methods 0.000 description 3
- 150000008064 anhydrides Chemical class 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000004224 protection Effects 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000005587 carbonate group Chemical group 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- 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
-
- 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
- C08L2205/08—Polymer mixtures characterised by other features containing additives to improve the compatibility between two polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to a special material for a bobbin and a preparation method thereof, wherein the special material for the bobbin comprises the following components in percentage by weight in a dry polycarbonate: high density polyethylene: a toughening agent: a compatilizer: the auxiliary agent is (80-90): (1-10): (1-5): (1-5): (0.8-1.2), the water content of the dry polycarbonate is less than 1 per mill, the toughening agent is an anti-stress agent comprising ABS grafted maleic anhydride, the compatilizer is a polyethylene graft, the material is prepared from glycidyl methacrylate, polyethylene, a lubricant, an antioxidant and a flowing agent, wherein a batch of polycarbonate is added into a conical vacuum rotary dryer to react to prepare dry polycarbonate, and the dry polycarbonate is extruded with high-density polyethylene, a toughening agent, a compatilizer and an auxiliary agent to prepare the finished special material for the bobbin.
Description
Technical Field
The invention relates to a special material for a bobbin and a preparation method thereof, belonging to the technical field of high polymer materials.
Background
The bobbins are also called as weft tubes and are mainly used on shuttles of shuttle looms, and comprise coreless bobbin tubes, common weft tubes, wool spinning tubes, roving bobbins, warp bobbins, fancy twist tubes, stranding tubes, pagoda tubes, spindle bobbins and other products, the bobbins made of PP polypropylene materials are poor in impact resistance, toughness and temperature resistance, and are difficult to load for long-time production operation, and the bobbins made of PPO polyphenylene oxide materials are good in strength and temperature resistance, but have the problems of high price, poor melt flowability, difficulty in processing and forming and the like.
Polycarbonate (PC) is a high molecular polymer containing carbonate groups in its molecular chain, and has the advantages of high toughness, good rigidity, and small creep rate under normal temperature, so it has wide application in the fields of electronic and electric appliances, automobiles, textiles, etc., however, because polycarbonate has the disadvantages of poor water resistance, notch sensitivity, poor ultraviolet resistance, etc., it restricts the popularization and use of polycarbonate on textile bobbin, and needs to be improved urgently.
Disclosure of Invention
The invention aims to provide a special material for a bobbin and a preparation method thereof aiming at the defects of the prior art, and the special material for the bobbin adopts aromatic Polycarbonate (PC), high-density polyethylene (HDPE), a toughening agent, a compatilizer and an auxiliary agent, so that the advantages of high rigidity, good toughness, small load creep rate at normal temperature, poor water resistance, sensitivity to gaps, poor ultraviolet resistance and the like of the material are ensured, the special material is high in quality and low in price, and the performance and the use requirements for manufacturing bobbin products are completely met.
The invention is realized by the following technical scheme:
the special material for the bobbin comprises the following components in parts by weight:
the special material for the yarn tube comprises the following components in percentage by weight in a dry state: high density polyethylene: a toughening agent: a compatilizer: the auxiliary agent is 80:10:5:4: 1.
The material special for the bobbin is characterized in that the dry polycarbonate is aromatic polycarbonate 1100, and the water content is less than 1 per thousand; the high-density polyethylene is 5000S or 7042; the toughening agent is an anti-stress agent containing ABS grafted maleic anhydride; the compatilizer is polyethylene graft and is prepared from glycidyl methacrylate, polyethylene, a lubricant, an antioxidant and a flowing agent.
The special material for the yarn tube is characterized in that the auxiliary agent is one or a combination of more of an antioxidant comprising an antioxidant 1010, a light stabilizer comprising a light stabilizer UV-622 and a lubricant comprising silicone powder.
A preparation method of a special material for a bobbin comprises the following steps:
(1) preparation of a dry polycarbonate: adding a batch of polycarbonate into a conical vacuum rotary dryer, heating and reacting for 4-6h under negative pressure, and detecting the moisture content to obtain dry polycarbonate;
(2) preparing a special material for the yarn tube: and (2) conveying the dry polycarbonate prepared in the step (1) into a main storage bin through a pipeline under negative pressure, adding high-density polyethylene, a toughening agent, a compatilizer and an auxiliary agent into a corresponding auxiliary bin and an auxiliary bin, and metering the dry polycarbonate according to the weight ratio: high density polyethylene: a toughening agent: a compatilizer: adding the additives (80-90): (1-10): 1-5): 0.8-1.2) into a double-screw extruder, extruding, cooling, granulating or pelletizing, drying and packaging to obtain the final special material for the finished product bobbin.
The preparation method of the special material for the yarn tube comprises the steps of mixing the dry polycarbonate and the high-density polyethylene according to the mass ratio of 10:1, and mixing the compatilizer, the polyethylene, the lubricant, the antioxidant and the flowing agent and then extruding the mixture through an extruder.
The preparation method of the special material for the bobbin comprises the following steps of (1), heating to 105-; and (2) starting the double-screw extruder when the temperature of the 9 region of the double-screw extruder reaches 210 ℃, 220 ℃, 240 ℃, 250 ℃, 240 ℃, 245 ℃, 240 ℃, 235 ℃ and 235 ℃, adjusting feeding to enable the current of the motor of the double-screw extruder to reach 80% of a rated value, using water for extruding cooling water through a circulating water tank, granulating or dicing, screening unqualified products, returning the unqualified products to the double-screw extruder for production, and drying by adopting vacuum drying.
The invention has the beneficial effects that:
according to the invention, aromatic dry polycarbonate PC is added with high density polyethylene HDPE, a toughening agent anti-stress agent, a polyethylene graft compatilizer and an auxiliary agent, and is subjected to blending extrusion at a proper screw combination and temperature through a double screw to prepare the special material for the bobbin, the diffusion of a solvent into a macromolecule is hindered due to the existence of acrylonitrile-butadiene-styrene copolymer ABS in the PC, the compatibility is improved, and the polyethylene graft anhydride compatilizer reduces the resistance of contact interfaces of different polymers to improve the stability; on one hand, the material has the advantages of high rigidity, good toughness and small load creep rate at normal temperature, on the other hand, the defects of poor water resistance, notch sensitivity, poor ultraviolet resistance and the like of the material are overcome, and the material is high in quality and low in price and completely meets the performance and use requirements for manufacturing bobbin products.
Drawings
FIG. 1 is a flow chart of the preparation method of the present invention.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
Example 1:
a preparation method of a special material for a bobbin comprises the following steps:
(1) preparation of a dry polycarbonate: adding 100Kg of aromatic polycarbonate 1100(PC) into a conical vacuum rotary dryer, heating to 110 ℃, reacting for 6 hours under negative pressure of-0.098 MPa, and detecting that the moisture content is less than 1 per thousand to obtain dry polycarbonate;
(2) preparing a special material for the yarn tube: feeding the dry polycarbonate prepared in the step (1) into a main storage bin through a pipeline under negative pressure, and adding 5000S high-density polyethylene, ABS (acrylonitrile butadiene styrene) grafted maleic anhydride serving as a toughening agent, polyethylene graft serving as a compatilizer and an auxiliary agent into a corresponding auxiliary bin and an auxiliary agent bin;
the compatilizer is prepared by blending 5Kg of glycidyl methacrylate GMA, 92Kg of polyethylene, 1Kg of lubricant HF-401B, 1Kg of antioxidant HF-1010 and 1Kg of flow agent HF-407 and then extruding the mixture by an extruder;
dry polycarbonate by weight ratio: high density polyethylene: a toughening agent: a compatilizer: adding an auxiliary agent into a double-screw extruder at a ratio of 80:10:5:4:1, wherein the auxiliary agent is an antioxidant 1010: light stabilizer UV-622: the lubricant silicone powder consists of 0.3:04: 0.3;
when the temperature of the 9 region of the double-screw extruder reaches 210 ℃, 220 ℃, 240 ℃, 250 ℃, 240 ℃, 245 ℃, 240 ℃, 235 ℃ and 235 ℃, respectively, starting the extruder, adjusting the feeding to enable the motor current of the double-screw extruder to reach 80% of a rated value, extruding, cooling and extruding cooling water, carrying out granulation or grain cutting, sieving unqualified products after granulation or grain cutting, returning the unqualified products to the double-screw extruder for production, and carrying out vacuum drying and packaging to obtain the final special material for the finished product bobbin.
Example 2:
a preparation method of a special material for a bobbin comprises the following steps:
(1) preparation of a dry polycarbonate: adding a batch of aromatic polycarbonate 1100(PC) into a conical vacuum rotary dryer, heating to 110 ℃, reacting for 6 hours under negative pressure of-0.098 MPa, and detecting that the moisture content is less than 1 per thousand to obtain dry polycarbonate;
(2) preparing a special material for the yarn tube: feeding the dry polycarbonate prepared in the step (1) into a main storage bin through a pipeline under negative pressure, and adding 5000S high-density polyethylene, ABS (acrylonitrile butadiene styrene) grafted maleic anhydride serving as a toughening agent, polyethylene graft serving as a compatilizer and an auxiliary agent into a corresponding auxiliary bin and an auxiliary agent bin;
the compatilizer is prepared by blending 5Kg of glycidyl methacrylate GMA, 92Kg of polyethylene, 1Kg of lubricant HF-401B, 1Kg of antioxidant HF-1010 and 1Kg of flow agent HF-407 and then extruding the mixture by an extruder;
dry polycarbonate by weight ratio: high density polyethylene: a toughening agent: a compatilizer: adding an auxiliary agent of 85:8.5:3:2.5:1 into a double-screw extruder, wherein the auxiliary agent is an antioxidant 1010: light stabilizer UV-622: the lubricant silicone powder consists of 0.3:04: 0.3;
when the temperature of the 9 region of the double-screw extruder reaches 210 ℃, 220 ℃, 240 ℃, 250 ℃, 240 ℃, 245 ℃, 240 ℃, 235 ℃ and 235 ℃, respectively, starting the extruder, adjusting the feeding to enable the motor current of the double-screw extruder to reach 80% of a rated value, extruding, cooling and extruding cooling water, carrying out granulation or grain cutting, sieving unqualified products after granulation or grain cutting, returning the unqualified products to the double-screw extruder for production, and carrying out vacuum drying and packaging to obtain the final special material for the finished product bobbin.
Example 3:
a preparation method of a special material for a bobbin comprises the following steps:
(1) preparation of a dry polycarbonate: adding a batch of aromatic polycarbonate 1100(PC) into a conical vacuum rotary dryer, heating to 110 ℃, reacting for 6 hours under negative pressure of-0.098 MPa, and detecting that the moisture content is less than 1 per thousand to obtain dry polycarbonate;
(2) preparing a special material for the yarn tube: feeding the dry polycarbonate prepared in the step (1) into a main storage bin through a pipeline under negative pressure, and adding 5000S high-density polyethylene, ABS (acrylonitrile butadiene styrene) grafted maleic anhydride serving as a toughening agent, polyethylene graft serving as a compatilizer and an auxiliary agent into a corresponding auxiliary bin and an auxiliary agent bin;
the compatilizer is prepared by blending 5Kg of glycidyl methacrylate GMA, 92Kg of polyethylene, 1Kg of lubricant HF-401B, 1Kg of antioxidant HF-1010 and 1Kg of flow agent HF-407 and then extruding the mixture by an extruder;
dry polycarbonate by weight ratio: high density polyethylene: a toughening agent: a compatilizer: adding an auxiliary agent of 88:8.8:2:0.5:0.7 into a double-screw extruder, wherein the auxiliary agent is an antioxidant 1010: light stabilizer UV-622: the lubricant silicone powder consists of 0.2:03: 0.2;
when the temperature of the 9 region of the double-screw extruder reaches 210 ℃, 220 ℃, 240 ℃, 250 ℃, 240 ℃, 245 ℃, 240 ℃, 235 ℃ and 235 ℃, respectively, starting the extruder, adjusting the feeding to enable the motor current of the double-screw extruder to reach 80% of a rated value, extruding, cooling and extruding cooling water, carrying out granulation or grain cutting, sieving unqualified products after granulation or grain cutting, returning the unqualified products to the double-screw extruder for production, and carrying out vacuum drying and packaging to obtain the final special material for the finished product bobbin.
In examples 1-3, the light stabilizer, antioxidant 1010 and antioxidant 168 were obtained from Riandong; silicone powder was purchased from huntington, qiagen; ABS grafted maleic anhydride, lubricant HF-401B, antioxidant HF-1010 and flow agent HF-407 are purchased from Ohiokun company; aromatic polycarbonate 1100(PC) was purchased from Letian corporation of Korea; high density polyethylene 5000S was purchased from china petrochemical.
Experimental examples 1-3 comparative performance test of the special material for the yarn bobbin;
examples 1 to 3 the yarn bobbin-dedicated material prepared was 1# -3#, 4# PP yarn bobbin-dedicated material, 5% PPO yarn bobbin-dedicated material, a yarn bobbin sample was produced by an injection molding machine, and the test properties are shown in the following table:
according to the invention, aromatic dry polycarbonate PC is added with high density polyethylene HDPE, a toughening agent anti-stress agent, a polyethylene graft compatilizer and an auxiliary agent, and is subjected to blending extrusion through a double screw at a proper screw combination and temperature to prepare a special material for a bobbin;
the toughening agent is an anti-stress agent comprising ABS grafted maleic anhydride, generates larger shear stress at ordered and disordered interfaces, and enables the inside of macromolecules to form cavities which are cracked under the stress far less than the tensile strength of the polymer. The stress cracking of PC is caused by the fact that a solvent is diffused into a polymer, and the partial compatibility of the solvent and a polymer chain enables the polymer chain to become orderly due to diffusion and swelling in the solvent, so that a crystallization phenomenon occurs; because ABS's solvent cracking resistance is good, ABS in PC alloy makes the solvent spread to the macromolecule is hindered, thus the stress cracking performance of the alloy is improved to some extent, after adding polar polyolefin, the stress cracking resistance is improved, the stress resistance agent improves the compatibility of PC, makes two phases disperse more evenly, prevents the solvent from spreading to the macromolecule more effectively;
the compatilizer is polyethylene graft, and the polyethylene graft anhydride compatilizer reduces the resistance of contact interfaces of different polymers, reduces the particle size of a disperse phase (the disperse phase with low content), increases the surface area of the disperse phase, improves the binding force of the disperse phase and a continuous phase (the continuous phase with high content), stabilizes the phase change of the disperse phase, and ensures that incompatible two high molecular polymers form stable alloy;
on one hand, the material has the advantages of high rigidity, good toughness and small load creep rate at normal temperature, on the other hand, the defects of poor water resistance, notch sensitivity, poor ultraviolet resistance and the like of the material are overcome, and the material is high in quality and low in price and completely meets the performance and use requirements for manufacturing bobbin products.
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 changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The special material for the yarn tube is characterized by comprising the following components in parts by weight:
2. the special material for the bobbin as claimed in claim 1, wherein the composition comprises the following components in percentage by weight in a dry state: high density polyethylene: a toughening agent: a compatilizer: the auxiliary agent is 80:10:5:4: 1.
3. The material as claimed in claim 1, wherein the polycarbonate in dry state is aromatic polycarbonate 1100, and the water content is less than 1 ‰.
4. The special material for the bobbin as claimed in claim 1, wherein the high density polyethylene is 5000S or 7042.
5. The special material for the bobbin as claimed in claim 1, wherein the toughening agent is an anti-stress agent comprising ABS grafted maleic anhydride.
6. The material as claimed in claim 1, wherein the compatibilizer is polyethylene graft and is made of glycidyl methacrylate, polyethylene, lubricant, antioxidant and flowing agent.
7. The material as claimed in claim 1, wherein the auxiliary agent is one or more of antioxidant including antioxidant 1010, light stabilizer including light stabilizer UV-622 and lubricant including silicone powder.
8. The preparation method of the special material for the yarn tube according to any one of claims 1 to 7, characterized by comprising the following steps:
(1) preparation of a dry polycarbonate: adding a batch of polycarbonate into a conical vacuum rotary dryer, heating and reacting for 4-6h under negative pressure, and detecting the moisture content to obtain dry polycarbonate;
(2) preparing a special material for the yarn tube: and (2) conveying the dry polycarbonate prepared in the step (1) into a main storage bin through a pipeline under negative pressure, adding high-density polyethylene, a toughening agent, a compatilizer and an auxiliary agent into a corresponding auxiliary bin and an auxiliary bin, and metering the dry polycarbonate according to the weight ratio: high density polyethylene: a toughening agent: a compatilizer: adding the additives (80-90): (1-10): 1-5): 0.8-1.2) into a double-screw extruder, extruding, cooling, granulating or pelletizing, drying and packaging to obtain the final special material for the finished product bobbin.
9. The preparation method of the special material for the yarn tube according to claim 8, wherein the mass ratio of the dry polycarbonate to the high-density polyethylene is 10:1, and the compatilizer is prepared by blending glycidyl methacrylate, polyethylene, a lubricant, an antioxidant and a flow agent and then extruding the mixture through an extruder.
10. The method for preparing the special material for the bobbin as claimed in claim 8, wherein the temperature rise in the step (1) reaches 105-; and (2) starting the double-screw extruder when the temperature of the 9 region of the double-screw extruder reaches 210 ℃, 220 ℃, 240 ℃, 250 ℃, 240 ℃, 245 ℃, 240 ℃, 235 ℃ and 235 ℃, adjusting feeding to enable the current of the motor of the double-screw extruder to reach 80% of a rated value, using water for extruding cooling water through a circulating water tank, granulating or dicing, screening unqualified products, returning the unqualified products to the double-screw extruder for production, and drying by adopting vacuum drying.
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