CN115011110B - PA6 carrier toughening master batch - Google Patents
PA6 carrier toughening master batch Download PDFInfo
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- CN115011110B CN115011110B CN202210695142.9A CN202210695142A CN115011110B CN 115011110 B CN115011110 B CN 115011110B CN 202210695142 A CN202210695142 A CN 202210695142A CN 115011110 B CN115011110 B CN 115011110B
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- 239000004594 Masterbatch (MB) Substances 0.000 title claims abstract description 29
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000002245 particle Substances 0.000 claims abstract description 19
- 238000002360 preparation method Methods 0.000 claims abstract description 14
- 229920000642 polymer Polymers 0.000 claims abstract description 11
- 238000010894 electron beam technology Methods 0.000 claims abstract description 7
- 239000011347 resin Substances 0.000 claims abstract description 6
- 229920005989 resin Polymers 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims abstract description 5
- 238000001125 extrusion Methods 0.000 claims description 14
- 239000004698 Polyethylene Substances 0.000 claims description 13
- 238000002156 mixing Methods 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 11
- 238000001035 drying Methods 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 7
- 229920000092 linear low density polyethylene Polymers 0.000 claims description 6
- 239000004707 linear low-density polyethylene Substances 0.000 claims description 6
- 230000001678 irradiating effect Effects 0.000 claims description 5
- 229920001903 high density polyethylene Polymers 0.000 claims description 3
- 239000004700 high-density polyethylene Substances 0.000 claims description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 2
- 125000003277 amino group Chemical group 0.000 claims description 2
- 229920001684 low density polyethylene Polymers 0.000 claims description 2
- 239000004702 low-density polyethylene Substances 0.000 claims description 2
- 239000004677 Nylon Substances 0.000 abstract description 28
- 229920001778 nylon Polymers 0.000 abstract description 28
- 239000012745 toughening agent Substances 0.000 abstract description 9
- 230000008901 benefit Effects 0.000 abstract description 6
- 238000009776 industrial production Methods 0.000 abstract description 3
- 229920002292 Nylon 6 Polymers 0.000 description 39
- 238000001746 injection moulding Methods 0.000 description 10
- 229920001971 elastomer Polymers 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 238000012360 testing method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000000806 elastomer Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 229920006124 polyolefin elastomer Polymers 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 3
- 239000005060 rubber Substances 0.000 description 3
- 229920000459 Nitrile rubber Polymers 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- 230000003078 antioxidant effect Effects 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 229920002943 EPDM rubber Polymers 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- FDYSSWYQRTVFIS-UHFFFAOYSA-N buta-1,3-diene 3-phenylprop-2-enoic acid Chemical compound C=CC=C.C(=O)(O)C=CC1=CC=CC=C1 FDYSSWYQRTVFIS-UHFFFAOYSA-N 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 238000007385 chemical modification Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 229920001910 maleic anhydride grafted polyolefin Polymers 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 239000002667 nucleating agent Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- 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
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
-
- 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
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/28—Treatment by wave energy or particle radiation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
- C08J2377/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
-
- 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
- C08J2451/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
- C08J2451/06—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2477/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
- C08J2477/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
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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)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a PA6 carrier toughening master batch which is prepared from the following raw materials in percentage by weight: 60-70% of PA6 polymer and 30-40% of maleic anhydride grafted PE resin. After 30 kGy-60kGy of electron beam irradiation is carried out on particles extruded by the two polymers through double screws, the final PA6 carrier toughening master batch is obtained, and can be used for preparing toughened and reinforced toughened nylon. The invention also discloses a preparation method of the nylon toughening agent, which has the advantages of simple preparation method, strong operability, good controllability, good reproducibility, easy industrial production and good economic benefit.
Description
Technical Field
The invention relates to the field of high polymer materials, in particular to a PA6 carrier toughening master batch, a preparation method and application thereof.
Background
Nylon is the first of five general engineering plastics, and has excellent mechanical strength, heat resistance, oil resistance, weak acid resistance, alkali resistance and general solvent resistance, no toxicity, no odor and good electrical insulation. The disadvantage is that the notch impact performance is generally low, especially the low temperature impact performance, and if the notch impact performance is required to be used in the environment with high toughness or low temperature, the notch impact performance is required to be toughened and modified.
The toughening effect of nylon is optimal, namely, a polar monomer which can react with nylon molecules is grafted on soft polyolefin elastomer molecules through a grafting chemical modification method, so that the polyolefin elastomer is uniformly dispersed in a nylon matrix in the form of tiny particles and forms a firm interface layer with the nylon, when the nylon is impacted by the outside, the soft polyolefin elastomer firstly absorbs energy to generate cavitation and yield, and then silver lines and shearing bands are initiated through interface transmission, so that a large amount of energy is consumed, and the effect of improving the impact strength of the material is macroscopically achieved. In the theoretical method, the dispersion size of the elastomer in the system, the interfacial binding force of the elastomer and the nylon matrix and the low-temperature performance of the elastomer are key to the impact performance of the whole material, and the smaller the particle size of the elastomer in the system, the higher the interfacial force, the softer the toughening agent and the higher the impact strength.
The most common nylon toughening agents at present are maleic anhydride grafted polyolefin elastomers, namely maleic anhydride grafted POE and EPDM, and the low-temperature toughness of the maleic anhydride grafted PE is far worse than that of the polyolefin elastomer, so that the toughening effect is greatly reduced.
CN104292821A, CN108623893a discloses a nylon toughening master batch and a preparation method thereof. The method comprises the steps of firstly uniformly mixing a polyolefin elastomer, a diluent, an initiator, a grafting monomer and an adhesive, adding the mixture into an extruder, and then adding nylon, an antioxidant and a plasticizer into a ninth zone of the extruder, wherein the temperature of each section of the extruder is set to 80-235 ℃; melting and plasticizing, reacting, blending and extruding, granulating, cooling and drying to obtain the nylon Long Zengren plasticizing master batch. CN106893318a discloses a superfine fully-vulcanized powdered rubber toughened high-temperature-resistant nylon material and a preparation method thereof, wherein the method comprises the steps of preparing toughened master batch from any one or more of superfine fully-vulcanized styrene-butadiene rubber, superfine fully-vulcanized carboxyl styrene-butadiene rubber, superfine fully-vulcanized acrylate rubber, superfine fully-vulcanized nitrile rubber, superfine fully-vulcanized carboxyl nitrile rubber and superfine fully-vulcanized silicone rubber, mixing the raw materials according to a proportion, extruding, drawing and granulating to obtain the superfine fully-vulcanized powdered rubber toughened high-temperature-resistant nylon composite material. CN110655785A discloses a nylon master batch suitable for low-temperature nylon ribbon, and a preparation method and application thereof. The nylon is 6 to 85 percent; 10-30% of a toughening agent; 0.1-2.5% of antioxidant; 2-7.5% of lubricant; 0.1-2% of nucleating agent; the relative sulfuric acid viscosity of nylon 6 is 2.3-3.2; the preparation method comprises the following steps: weighing the raw materials according to the formula, mixing, extruding, granulating and drying to prepare the composite material; the nylon ribbon can be manufactured by mixing and injection molding a small amount of nylon master batch and nylon base materials during injection molding, so that the defect that most of nylon base materials need to be subjected to twice hot processing is overcome.
Disclosure of Invention
The invention provides a PA6 carrier toughening master batch, which can obviously improve the toughening effect of maleic anhydride grafted PE on nylon and has excellent cost performance.
The invention also provides a preparation method of the PA6 carrier toughening master batch, which has the advantages of simple preparation process, strong operability, good reproducibility and easy industrial production.
A PA6 carrier toughening master batch is prepared from the following raw materials in percentage by weight:
60% -70% of PA6 polymer;
30% -40% of maleic anhydride grafted PE resin;
in order to obtain a better effect of the invention, it is further preferable to carry out the present invention:
The viscosity of the PA6 polymer is between 2.4 and 2.8, and the content of terminal amino groups is more than 45 mmol/kg. Preferably, the viscosity is 2.8 viscosity and the amino end content is 50 mmol/kg.
The maleic anhydride grafted PE polymer is one or two of HDPE, LLDPE, LDPE, and the maleic anhydride grafting rate is between 0.5 and 1.0 percent. LLDPE is preferred, and the maleic anhydride grafting ratio is 1.0%
The preparation method of the PA6 carrier toughening master batch comprises the following steps:
1) Uniformly mixing a maleic anhydride grafted PE polymer and a PA6 polymer, adding the mixture into a high-shear double-screw extruder for extrusion, and performing water cooling, granulating and drying to obtain PA6 carrier toughening particles, wherein the preferable particle diameter is 3mm plus or minus 0.5mm;
2) And (3) irradiating the PA6 carrier toughening particles in the step (1) by using 30 kGy-60 kGy electron beams to obtain final PA6 carrier toughening master batch. The preferred irradiation dose is 50 kGy.
5. The method for preparing nylon toughening agent according to claim 4, wherein in step 1), the temperature control ranges from the first temperature section to the eighth temperature section of the feeding section to the head of the twin-screw extruder are respectively: 220 ℃,210 ℃,200 ℃,190 ℃,180 ℃,170 ℃,160 ℃,160 ℃ and the die head temperature is 220 ℃. Screw speed is 700-800RPM.
The PA6 carrier toughening master batch can be used for preparing toughened and reinforced nylon, and compared with a maleic anhydride grafted PE toughening agent, the impact strength of a nylon material can be effectively improved.
Compared with the prior art, the invention has the following advantages:
compared with a maleic anhydride grafted PE toughening agent, the PA6 carrier toughening master batch can effectively improve the impact strength of nylon and has excellent cost performance.
The preparation method of the nylon toughening agent has the advantages of simple operation, strong operability, good controllability, good reproducibility, easy industrial production and good economic benefit.
Detailed Description
Example 1
Maleic anhydride grafted LLDPE (Hecheng HS3-210 x) and PA6 (Jisheng 4407) are mixed according to a mass ratio of 40:60 is added into a mixer for mixing for 1min, and then is added into a double-screw extruder for extrusion, and the temperatures of a first temperature section and an eighth temperature section of the double-screw extruder from a feeding section to a machine head are respectively as follows: 220 ℃,210 ℃,200 ℃,190 ℃,180 ℃,170 ℃,160 ℃,160 ℃ and the die head temperature is 220 ℃. Screw speed is 700-800RPM. After extrusion, the PA6 carrier toughening particles are obtained by normal temperature water cooling, granulating (the particle diameter is 3mm plus or minus 0.5 mm) and drying (90 ℃ for 2 h).
And irradiating the obtained PA6 carrier toughening particles by using 30 kGy electron beams to obtain the final PA6 carrier toughening master batch.
The final PA6 carrier toughening master batch and PA6 (Xinhuimeda 2800) are mixed according to the weight ratio of 40:60, and through a double-screw extruder, the temperatures of a first temperature section to an eighth temperature section of the double-screw extruder from a feeding section to a machine head are respectively: 220 ℃,230 ℃,220 ℃,220 ℃,210 ℃,210 ℃,210 ℃, and the die temperature is 230 ℃. Screw speed 400RPM. After extrusion, the mixture is subjected to normal-temperature water cooling, granulating, drying (90 ℃ for 2 hours) and injection molding of sample bars by an injection molding machine for mechanical property testing.
Example 2
Maleic anhydride grafted LLDPE (Hecheng HS3-210 x) and PA6 (Jisheng 4407) are mixed according to a mass ratio of 40:60 is added into a mixer for mixing for 1min, and then is added into a double-screw extruder for extrusion, and the temperatures of a first temperature section and an eighth temperature section of the double-screw extruder from a feeding section to a machine head are respectively as follows: 220 ℃,210 ℃,200 ℃,190 ℃,180 ℃,170 ℃,160 ℃,160 ℃ and the die head temperature is 220 ℃. Screw speed is 700-800RPM. After extrusion, the PA6 carrier toughening particles are obtained by normal temperature water cooling, granulating (the particle diameter is 3mm plus or minus 0.5 mm) and drying (90 ℃ for 2 h).
And irradiating the obtained PA6 carrier toughening particles by using 50 kGy electron beams to obtain the final PA6 carrier toughening master batch.
The final PA6 carrier toughening master batch and PA6 (Xinhuimeda 2800) are mixed according to the weight ratio of 40:60, and through a double-screw extruder, the temperatures of a first temperature section to an eighth temperature section of the double-screw extruder from a feeding section to a machine head are respectively: 220 ℃,230 ℃,220 ℃,220 ℃,210 ℃,210 ℃,210 ℃, and the die temperature is 230 ℃. Screw speed 400RPM. After extrusion, the mixture is subjected to normal-temperature water cooling, granulating, drying (90 ℃ for 2 hours) and injection molding of sample bars by an injection molding machine for mechanical property testing.
Example 3
Maleic anhydride grafted HDPE (Hecheng HS 3-008) and PA6 (Jisheng 4407) are mixed according to a mass ratio of 40:60 is added into a mixer for mixing for 1min, and then is added into a double-screw extruder for extrusion, and the temperatures of a first temperature section and an eighth temperature section of the double-screw extruder from a feeding section to a machine head are respectively as follows: 220 ℃,210 ℃,200 ℃,190 ℃,180 ℃,170 ℃,160 ℃,160 ℃ and the die head temperature is 220 ℃. Screw speed is 700-800RPM. After extrusion, the PA6 carrier toughening particles are obtained by normal temperature water cooling, granulating (the particle diameter is 3mm plus or minus 0.5 mm) and drying (90 ℃ for 2 h).
And irradiating the obtained PA6 carrier toughening particles by using 50 kGy electron beams to obtain the final PA6 carrier toughening master batch.
The final PA6 carrier toughening master batch and PA6 (Xinhuimeda 2800) are mixed according to the weight ratio of 40:60, and through a double-screw extruder, the temperatures of a first temperature section to an eighth temperature section of the double-screw extruder from a feeding section to a machine head are respectively: 220 ℃,230 ℃,220 ℃,220 ℃,210 ℃,210 ℃,210 ℃, and the die temperature is 230 ℃. Screw speed 400RPM. After extrusion, the mixture is subjected to normal-temperature water cooling, granulating, drying (90 ℃ for 2 hours) and injection molding of sample bars by an injection molding machine for mechanical property testing.
Comparative example 1
Maleic anhydride grafted LLDPE (Hecheng HS3-210 x) was combined with PA6 (Xinhuimeda 2800) and PA6 (Jisheng 4407) in a mass ratio of 16:60:24 are added into a mixer for mixing for 1min, and then are added into a double-screw extruder for extrusion, and the temperatures of a first temperature section and an eighth temperature section of the double-screw extruder from a feeding section to a machine head are respectively as follows: 220 ℃,210 ℃,200 ℃,190 ℃,180 ℃,170 ℃,160 ℃,160 ℃ and the die head temperature is 220 ℃. Screw speed is 700-800RPM. And (3) performing normal-temperature water cooling and granulating after extrusion, and performing mechanical property test on the injection molding sample bars by an injection molding machine.
The toughened PA6 alloys prepared in application example 1, application example 2, application example 3 and comparative example 1 were subjected to performance testing, and the test methods and test results thereof are shown in table 1.
TABLE 1
| Performance of | Unit (B) | Test method | Application example 1 | Application example 2 | Application example 3 | Comparative example 1 |
| Density of | g/cm3 | GB/T 1033.1 | 1.08 | 1.08 | 1.08 | 1.08 |
| Flexural Strength | MPa | GB/T9341 | 76 | 75 | 75 | 81 |
| Flexural modulus | MPa | GB/T9341 | 1932 | 1918 | 1950 | 2012 |
| Tensile Strength | MPa | GB/T1040.2 | 51 | 52 | 52 | 57 |
| Notched impact strength of simply supported beam (23 ℃ C.) | kJ/m2 | GB/T1043.1 | 32 | 37 | 30 | 16 |
From the comparison of the data, the impact strength of the PA6 material toughened and modified by the PA6 toughening master batches prepared in the examples 1, 2 and 3 is obviously improved compared with that of the PA6 material directly modified by the maleic anhydride grafted PE toughening agent.
Claims (3)
1. A PA6 carrier toughening master batch is prepared from the following raw materials in percentage by weight:
60% -70% of PA6 polymer;
30% -40% of maleic anhydride grafted PE resin;
The preparation method is characterized in that the PA6 carrier toughening master batch is prepared by the following preparation method, and the preparation method comprises the following steps:
1) Uniformly mixing maleic anhydride grafted PE resin and PA6 polymer, adding into a double-screw extruder for extrusion, and obtaining PA6 carrier toughening particles through water cooling, granulating and drying;
2) Carrying out electron beam irradiation on the PA6 carrier toughening particles in the step 1) by 30-60 kGy to obtain final PA6 carrier toughening master batch;
the viscosity of the PA6 polymer is between 2.4 and 2.8, and the content of terminal amino groups is more than 45mmol/kg;
PE in the maleic anhydride grafted PE resin is one or three of HDPE, LLDPE, LDPE; and the grafting rate of the maleic anhydride is between 0.5 and 1.0 percent.
2. The method for preparing the PA6 carrier toughening master batch according to claim 1, comprising the following steps:
1) Uniformly mixing maleic anhydride grafted PE resin and PA6 polymer, adding into a double-screw extruder for extrusion, and obtaining PA6 carrier toughening particles through water cooling, granulating and drying;
2) And (3) irradiating the PA6 carrier toughening particles in the step (1) by using 30-60 kGy electron beams to obtain final PA6 carrier toughening master batch.
3. The method for preparing the PA 6-carrier toughening master batch according to claim 2, wherein in the step 1), the temperature control ranges of the twin-screw extruder from the first temperature section to the eighth temperature section of the feeding section to the head are respectively: 220 ℃,210 ℃,200 ℃,190 ℃,180 ℃,170 ℃,160 ℃,160 ℃, and the temperature of the die head is 220 ℃, and the rotating speed of the screw is 700-800RPM.
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|---|---|---|---|---|
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| CN110655785A (en) * | 2019-10-14 | 2020-01-07 | 张家港绿洲新材料科技有限公司 | Nylon master batch suitable for low-temperature nylon cable tie and preparation method and application thereof |
| CN114133732A (en) * | 2021-12-06 | 2022-03-04 | 中广核俊尔(浙江)新材料有限公司 | Polyamide master batch for irradiation crosslinking and preparation method and application thereof |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0448158A2 (en) * | 1990-03-19 | 1991-09-25 | Shell Internationale Researchmaatschappij B.V. | Process to blend polyamides and functionalized elastomers and blends prepared by this method |
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| CN110655785A (en) * | 2019-10-14 | 2020-01-07 | 张家港绿洲新材料科技有限公司 | Nylon master batch suitable for low-temperature nylon cable tie and preparation method and application thereof |
| CN114133732A (en) * | 2021-12-06 | 2022-03-04 | 中广核俊尔(浙江)新材料有限公司 | Polyamide master batch for irradiation crosslinking and preparation method and application thereof |
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| Title |
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| 彭治汉 等.《塑料工业手册 聚酰胺》.化学工业出版社,2001,(第1版),第287-288页. * |
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