CN111793170A - Compatilizer for HDPE (high-density polyethylene) and nylon 6 blend and preparation process and application thereof - Google Patents
Compatilizer for HDPE (high-density polyethylene) and nylon 6 blend and preparation process and application thereof Download PDFInfo
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- CN111793170A CN111793170A CN202010563300.6A CN202010563300A CN111793170A CN 111793170 A CN111793170 A CN 111793170A CN 202010563300 A CN202010563300 A CN 202010563300A CN 111793170 A CN111793170 A CN 111793170A
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- hdpe
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- 229920001903 high density polyethylene Polymers 0.000 title claims abstract description 46
- 239000004700 high-density polyethylene Substances 0.000 title claims abstract description 46
- 239000000203 mixture Substances 0.000 title claims abstract description 25
- 229920002292 Nylon 6 Polymers 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title description 7
- JWYVGKFDLWWQJX-UHFFFAOYSA-N 1-ethenylazepan-2-one Chemical compound C=CN1CCCCCC1=O JWYVGKFDLWWQJX-UHFFFAOYSA-N 0.000 claims abstract description 9
- TWYISXLZCIVDDW-UHFFFAOYSA-N 2-methyl-n-(2-methylpropoxymethyl)prop-2-enamide Chemical compound CC(C)COCNC(=O)C(C)=C TWYISXLZCIVDDW-UHFFFAOYSA-N 0.000 claims abstract description 9
- DMWVYCCGCQPJEA-UHFFFAOYSA-N 2,5-bis(tert-butylperoxy)-2,5-dimethylhexane Chemical compound CC(C)(C)OOC(C)(C)CCC(C)(C)OOC(C)(C)C DMWVYCCGCQPJEA-UHFFFAOYSA-N 0.000 claims abstract description 8
- -1 ammonium diisopropylethanolate Chemical compound 0.000 claims abstract description 5
- 238000006243 chemical reaction Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims abstract description 4
- 230000008569 process Effects 0.000 claims abstract description 4
- 238000001125 extrusion Methods 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- 239000004677 Nylon Substances 0.000 claims description 6
- 239000003963 antioxidant agent Substances 0.000 claims description 6
- 230000003078 antioxidant effect Effects 0.000 claims description 6
- 229920001778 nylon Polymers 0.000 claims description 6
- 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 5
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 3
- 230000004888 barrier function Effects 0.000 abstract description 8
- 239000000178 monomer Substances 0.000 abstract description 4
- 230000009471 action Effects 0.000 abstract description 2
- 239000000853 adhesive Substances 0.000 abstract description 2
- 230000001070 adhesive effect Effects 0.000 abstract description 2
- 150000001408 amides Chemical class 0.000 abstract description 2
- 239000003054 catalyst Substances 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 abstract description 2
- 238000010168 coupling process Methods 0.000 abstract description 2
- 238000005859 coupling reaction Methods 0.000 abstract description 2
- 229920000578 graft copolymer Polymers 0.000 abstract description 2
- 239000003999 initiator Substances 0.000 abstract description 2
- 230000002195 synergetic effect Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000005022 packaging material Substances 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000007605 air drying Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- ZYWUVGFIXPNBDL-UHFFFAOYSA-N n,n-diisopropylaminoethanol Chemical compound CC(C)N(C(C)C)CCO ZYWUVGFIXPNBDL-UHFFFAOYSA-N 0.000 description 1
- 229920006113 non-polar polymer Polymers 0.000 description 1
- 229920006112 polar polymer Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000008782 xin-kang Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F255/00—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00
- C08F255/02—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00 on to polymers of olefins having two or three carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
-
- 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
-
- 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 discloses a compatibilizer for a blend of HDPE and nylon 6, which is characterized in that in the process of extruding HDPE, a functional monomer of amide polar groups is introduced into a HDPE molecular chain under the action of an initiator 2, 5-dimethyl-2, 5-bis (tert-butylperoxy) hexane (DBPH) and a catalyst ammonium diisopropylethanolate; n- (iso-butoxymethyl) methacrylamide and a functional monomer with a synergistic effect: n-vinyl caprolactam. The HDPE graft polymer after the grafting reaction is used as a compatilizer of the HDPE and nylon 6 blend, plays a role in coupling at a two-phase interface, increases the adhesive force of the two-phase interface, and ensures that the product not only has higher physical and mechanical properties, but also has excellent barrier property.
Description
Technical Field
The invention relates to a compatibilizer for HDPE and nylon 6 blend, a preparation process and application thereof.
Background
HDPE (high density polyethylene) is a polymer with better comprehensive performance, and a packaging material taking HDPE as a main raw material is replacing the traditional metal or glass packaging material and is widely applied to food packaging, medicine packaging and the like. However, HDPE materials have poor barrier properties, which limits their range of applications. Nylon 6 (polyamide 6) is a special material with high strength and high barrier property, and the barrier property of HDPE material can be improved by doping nylon 6 into the HDPE material. However, since the HDPE material is a non-polar polymer and the nylon 6 is a polar polymer, the material obtained by pure blending has poor mechanical properties and limited improvement of barrier properties.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defect of poor barrier property of HDPE material in the prior art, and provides a compatilizer for HDPE-nylon 6 blend and a preparation process thereof
In order to solve the technical problems, the invention provides the following technical scheme:
the compatilizer for the HDPE and nylon 6 blend comprises the following components in parts by weight:
HDPE 100 parts
5-6 parts of N- (iso-butoxymethyl) methacrylamide
3-5 parts of N-vinyl caprolactam
0.3-0.5 part of 2, 5-dimethyl-2, 5-bis (tert-butylperoxy) hexane
0.2-0.3 part of diisopropylethanolammonium
10100.2-0.25 part of antioxidant
0.8 to 1.0 portion of EBS
The preparation process of the compatilizer for the HDPE and nylon 6 blend comprises the following steps:
s1, extruding on a double-screw extruder with the length-diameter ratio L/D (equal to 48), wherein the double-screw extruder is provided with 12 sections and 3 feed inlets, the first feed inlet is positioned at the position of the extruder 1D, the second feed inlet is positioned at the position of SD of the fifth section of the extruder, and the third feed inlet is positioned at the position of the extruder 7D;
s2, feeding HDPE into the feed inlet at the first section 1D of the 120r/min double-screw extruder at a feeding rate of 75 kg/h;
s3, mixing N- (iso-butoxymethyl) methacrylamide, N-vinyl caprolactam, 2, 5-dimethyl-2, 5-bis (tert-butylperoxy) hexane and diisopropylethanol ammonium according to a ratio, and adding the mixture to a feed inlet of a fifth section 5D of the extruder at a feeding rate of 4.7kg/h under a pressure of 1.2-1.5 MPa;
s4, mixing the antioxidant 1010 and EBS, and feeding at a rate of 0.52kg/h to a feed port at the seventh section 7D of the extruder
S5, grafting reaction is carried out, the extrusion processing temperature is gradually increased from 140-150 ℃ of the first section to 220 ℃ of the 8 th section, and the extrusion temperature of the tail section of the extruder is gradually decreased to about 160-170 ℃.
Further, the process temperature of each section in S5 is set as follows:
140 to 150 ℃, 170 to 180 ℃, 180 to 190 ℃, 190 to 200 ℃, 200 to 210 ℃, 210 to 220 ℃, 200 to 210 ℃, 190 to 200 ℃, 180 to 190 ℃ and 160 to 170 ℃.
Further, in S3, the compound material obtained in S1 was fed at a feed rate of 85kg/h, and the running rate of the twin-screw extruder was 110 r/min.
The invention has the following beneficial effects: in the HDPE extrusion process, a functional monomer of amide polar groups is introduced into an HDPE molecular chain under the action of an initiator 2, 5-dimethyl-2, 5-bis (tert-butylperoxy) hexane (DBPH) and a catalyst ammonium diisopropyl ethoxide; n- (iso-butoxymethyl) methacrylamide and a functional monomer with a synergistic effect: n-vinyl caprolactam. The HDPE graft polymer after the grafting reaction is used as a compatilizer of the HDPE and nylon 6 blend, plays a role in coupling at a two-phase interface, increases the adhesive force of the two-phase interface, and ensures that the product not only has higher physical and mechanical properties, but also has excellent barrier property.
Detailed Description
The following description of the preferred embodiments of the present invention is provided for the purpose of illustration and description, and is in no way intended to limit the invention.
Example 1
The compatilizer for the HDPE and nylon 6 blend is characterized by comprising the following components in parts by weight:
HDPE 100 parts
5-6 parts of N- (iso-butoxymethyl) methacrylamide
3-5 parts of N-vinyl caprolactam
0.3-0.5 part of 2, 5-dimethyl-2, 5-bis (tert-butylperoxy) hexane
0.2-0.3 part of diisopropylethanolammonium
10100.2-0.25 part of antioxidant
0.8-1.0 part of EBS.
The preparation process of the compatilizer comprises the following steps:
s1, extruding on a double-screw extruder with the length-diameter ratio L/D (equal to 48), wherein the double-screw extruder is provided with 12 sections and 3 feed inlets, the first feed inlet is positioned at the position of the extruder 1D, the second feed inlet is positioned at the position of SD of the fifth section of the extruder, and the third feed inlet is positioned at the position of the extruder 7D;
s2, feeding HDPE into the feed inlet at the first section 1D of the 120r/min double-screw extruder at a feeding rate of 75 kg/h;
s3, mixing N- (iso-butoxymethyl) methacrylamide, N-vinyl caprolactam, 2, 5-dimethyl-2, 5-bis (tert-butylperoxy) hexane and diisopropylethanol ammonium according to a ratio, and adding the mixture to a feed inlet of a fifth section 5D of the extruder at a feeding rate of 4.7kg/h under a pressure of 1.2-1.5 MPa;
s4, mixing the antioxidant 1010 and EBS, and feeding at a rate of 0.52kg/h to a feed port at the seventh section 7D of the extruder
S5, carrying out grafting reaction, and setting the extrusion processing temperature as follows:
140 to 150 ℃, 170 to 180 ℃, 180 to 190 ℃, 190 to 200 ℃, 200 to 210 ℃, 210 to 220 ℃, 200 to 210 ℃, 190 to 200 ℃, 180 to 190 ℃ and 160 to 170 ℃.
Example 2
An HDPE and nylon blend comprises the following components in parts by weight:
HDPE 100 parts
625 portions of nylon
6 parts of compatilizer in example 1
10100.2-0.25 part of antioxidant
0.8-1.0 part of EBS.
Comparative example 1
An HDPE and nylon blend comprises the following components in parts by weight:
HDPE 100 parts
625 portions of nylon
6 portions of compatilizer PE-g-MAH
10100.2-0.25 part of antioxidant
0.8-1.0 part of EBS.
The preparation process of example 2 and comparative example 3 is as follows:
1) firstly, drying nylon 6 in a forced air drying oven at 80 ℃ for 8 hours for later use;
2) extruding on a twin screw extruder with a length to diameter ratio L/D of 48, said twin screw extruder being provided with 12 sections, 3 feed ports, the first feed port being located at extruder 1D;
3) adding the HDPE, the nylon, the compatilizer, the antioxidant 1010 and the lubricant EBS into the high-speed mixture according to the proportion, and stirring for about 6 minutes to prepare a mixture of the HDPE and the nylon 6;
4) feeding the HDPE and nylon 6 mixture into a feed inlet at the first section 1D of the 120r/min double-screw extruder at a feeding rate of 85 kg/h;
the extrusion processing temperature was set as follows:
140 to 150 ℃, 180 to 190 ℃, 190 to 200 ℃, 200 to 210 ℃, 210 to 220 ℃, 220 to 230 ℃, 200 to 210 ℃, 190 to 200 ℃, 180 to 190 ℃ and 160 to 170 ℃.
Typical Performance determination
As can be seen from the above table, the compatibilizer of the present invention not only enables the HDPE product to have high physical and mechanical properties, but also has excellent barrier properties.
The special material sources are as follows:
n- (iso-butoxymethyl) methacrylamide was purchased from Hubei Xinkang pharmaceutical chemical Co., Ltd.
N-vinyl caprolactam is purchased from Wuhanxin Jue and is available from chemical industries, Ltd
Diisopropylethanolamine is purchased from Shanghai Jingyan chemical technology Co Ltd
PE-g-MAH was purchased from Jiangsu, Inc., a good easy compatibilizer.
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 changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
- The compatilizer for the HDPE and nylon 6 blend is characterized by comprising the following components in parts by weight:HDPE 100 parts5-6 parts of N- (iso-butoxymethyl) methacrylamide3-5 parts of N-vinyl caprolactam0.3-0.5 part of 2, 5-dimethyl-2, 5-bis (tert-butylperoxy) hexane0.2-0.3 part of diisopropylethanolammonium10100.2-0.25 part of antioxidant0.8-1.0 part of EBS.
- 2. The process for preparing the compatibilizer for HDPE and nylon 6 blends according to claim 1, comprising the steps of:s1, extruding on a double-screw extruder with the length-diameter ratio L/D (equal to 48), wherein the double-screw extruder is provided with 12 sections and 3 feed inlets, the first feed inlet is positioned at the position of the extruder 1D, the second feed inlet is positioned at the position of SD of the fifth section of the extruder, and the third feed inlet is positioned at the position of the extruder 7D;s2, adding HDPE into a feed inlet at the first section 1D of the 120r/min double-screw extruder;s3, mixing N- (iso-butoxymethyl) methacrylamide, N-vinyl caprolactam, 2, 5-dimethyl-2, 5-bis (tert-butylperoxy) hexane and diisopropylethanol ammonium according to a ratio, and adding the mixture into a feed inlet at a position 5D of a fifth section of the extruder under the pressure of 1.2-1.5 Mpa;s4, mixing the antioxidant 1010 and the EBS, and adding the mixture into a feed inlet at the seventh section 7D of the extruder;s5, grafting reaction is carried out, the extrusion processing temperature is gradually increased from 140-150 ℃ of the first section to 220 ℃ of the 8 th section, and the extrusion temperature of the tail section of the extruder is gradually decreased to about 160-170 ℃.
- 3. The process for preparing a compatibilizer for HDPE and nylon 6 blends according to claim 2 wherein the process temperature for each segment in S5 is set as follows:140 to 150 ℃, 170 to 180 ℃, 180 to 190 ℃, 190 to 200 ℃, 200 to 210 ℃, 210 to 220 ℃, 200 to 210 ℃, 190 to 200 ℃, 180 to 190 ℃ and 160 to 170 ℃.
- 4. The process for preparing the compatibilizer for HDPE and nylon 6 blend in claim 2, wherein the feeding rate of HDPE in S2 in S3 is 75kg/h, the feeding rate of the mixture in S3 is 4.7kg/h, and the feeding rates of the antioxidant 1010 and EBS in S4 are 0.52 kg/h.
- 5. The compatibilizer-modified HDPE and nylon blend of claim 1 comprising the following components in parts by weight:HDPE 100 parts625 portions of nylon6 portions of compatilizer10100.2-0.25 part of antioxidant0.8-1.0 part of EBS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010563300.6A CN111793170A (en) | 2020-06-19 | 2020-06-19 | Compatilizer for HDPE (high-density polyethylene) and nylon 6 blend and preparation process and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010563300.6A CN111793170A (en) | 2020-06-19 | 2020-06-19 | Compatilizer for HDPE (high-density polyethylene) and nylon 6 blend and preparation process and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111793170A true CN111793170A (en) | 2020-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010563300.6A Pending CN111793170A (en) | 2020-06-19 | 2020-06-19 | Compatilizer for HDPE (high-density polyethylene) and nylon 6 blend and preparation process and application thereof |
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| Country | Link |
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| CN (1) | CN111793170A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113174921A (en) * | 2021-05-11 | 2021-07-27 | 中国科学院武汉岩土力学研究所 | Polymer blending type geocell and manufacturing method thereof |
| CN113667258A (en) * | 2021-08-24 | 2021-11-19 | 江苏宝安电缆有限公司 | High-strength super-toughness HDPE polymer and preparation method thereof |
-
2020
- 2020-06-19 CN CN202010563300.6A patent/CN111793170A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113174921A (en) * | 2021-05-11 | 2021-07-27 | 中国科学院武汉岩土力学研究所 | Polymer blending type geocell and manufacturing method thereof |
| CN113174921B (en) * | 2021-05-11 | 2023-02-28 | 中国科学院武汉岩土力学研究所 | Polymer blending type geocell and manufacturing method thereof |
| CN113667258A (en) * | 2021-08-24 | 2021-11-19 | 江苏宝安电缆有限公司 | High-strength super-toughness HDPE polymer and preparation method thereof |
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Application publication date: 20201020 |