CN110835430A - Toughened and modified HDPE material and preparation process thereof - Google Patents
Toughened and modified HDPE material and preparation process thereof Download PDFInfo
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- CN110835430A CN110835430A CN201911195063.6A CN201911195063A CN110835430A CN 110835430 A CN110835430 A CN 110835430A CN 201911195063 A CN201911195063 A CN 201911195063A CN 110835430 A CN110835430 A CN 110835430A
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- 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
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- 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
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- 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
- C08L2205/06—Polymer mixtures characterised by other features having improved processability or containing aids for moulding methods
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- C—CHEMISTRY; METALLURGY
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- 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
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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
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
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Abstract
The invention belongs to the technical field of high polymer materials and preparation thereof, and particularly relates to a toughened and modified HDPE material and a preparation process thereof. The toughened and modified HDPE material is prepared from the following raw materials in parts by weight: 100 parts of HDPE, 12-15 parts of polyolefin elastic toughening body, 8-11 parts of polyurethane elastomer, 5-8 parts of pentaerythritol stearic acid, 1-5 parts of transparent nucleating agent, 10-15 parts of modified carbon nano tube, 14-18 parts of maleic anhydride grafted compatilizer, 4-8 parts of glass fiber, 5-10 parts of flame retardant, 4-8 parts of antioxidant, 2-4 parts of dispersing agent, 4-10 parts of amino silicone oil, 0.1-0.5 part of silane coupling agent, 2-5 parts of ultraviolet absorbent and 2-4 parts of composite anti-aging agent. Has excellent wear resistance, electric insulation, toughness, cold resistance and aging resistance. The preparation process is simple and suitable for mass production.
Description
Technical Field
The invention relates to the technical field of high polymer materials and preparation thereof, in particular to a toughened and modified HDPE material and a preparation process thereof.
Background
The high-density polyethylene (HDPE) is a white powder or granular product, is nontoxic and tasteless, has the crystallinity of 80-90 percent, the softening point of 125-l 35 ℃ and the use temperature of 100 ℃; the hardness, tensile strength and creep property are better than those of low-density polyethylene; the wear resistance, the electrical insulation, the toughness and the cold resistance are good; the chemical stability is good, and the paint is not dissolved in any organic solvent at room temperature, and is resistant to corrosion of acid, alkali and various salts; the film has small permeability to water vapor and air and low water absorption; the aging resistance is poor, the environmental stress cracking resistance is inferior to that of low density polyethylene, and the performance is reduced by thermal oxidation, so that an antioxidant, an ultraviolet absorber and the like are added into the resin to overcome the defects.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a toughened and modified HDPE material and a preparation process thereof, which improve the brittleness, increase the toughness and the aging resistance of the HDPE material and prolong the service life of the HDPE material.
The technical scheme is as follows: in order to achieve the purpose, the invention discloses a toughened and modified HDPE material which is prepared from the following raw materials in parts by weight: 100 parts of HDPE, 12-15 parts of polyolefin elastic toughening body, 8-11 parts of polyurethane elastomer, 5-8 parts of pentaerythritol stearic acid, 1-5 parts of transparent nucleating agent, 10-15 parts of modified carbon nanotube, 4-8 parts of glass fiber, 14-18 parts of maleic anhydride graft compatilizer, 5-10 parts of flame retardant, 4-8 parts of antioxidant, 2-4 parts of dispersing agent, 4-10 parts of amino silicone oil, 0.1-0.5 part of silane coupling agent, 2-5 parts of ultraviolet absorbent and 2-4 parts of composite anti-aging agent.
Preferably, the toughened and modified HDPE material is prepared from the following raw materials in parts by weight: 100 parts of HDPE, 12-15 parts of polyolefin elastic toughening body, 8-11 parts of polyurethane elastomer, 5-7 parts of pentaerythritol stearic acid, 2-4 parts of transparent nucleating agent, 10-12 parts of modified carbon nanotube, 4-6 parts of glass fiber, 14-16 parts of maleic anhydride graft compatilizer, 5-7 parts of flame retardant, 4-6 parts of antioxidant, 6-9 parts of amino silicone oil, 0.2-0.4 part of silane coupling agent, 2-4 parts of ultraviolet absorbent and 2-4 parts of composite anti-aging agent.
Preferably, the toughened and modified HDPE material is prepared from the following raw materials in parts by weight: 100 parts of HDPE, 12 parts of polyolefin elastic toughening body, 10 parts of polyurethane elastomer, 6 parts of pentaerythritol stearic acid, 4 parts of transparent nucleating agent, 10 parts of modified carbon nanotube, 4 parts of glass fiber, 14 parts of maleic anhydride graft compatilizer, 5 parts of flame retardant, 4 parts of antioxidant, 2 parts of dispersant, 6 parts of amino silicone oil, 0.2 part of silane coupling agent, 2 parts of ultraviolet absorbent and 2 parts of composite anti-aging agent.
Furthermore, the diameter of the monofilament of the glass fiber is 12 microns, and each fiber strand consists of 200-1000 monofilaments.
Further, the flame retardant is ammonium dihydrogen phosphate; the antioxidant is at least one of antioxidant 1010, antioxidant 168, and antioxidant AO-30.
Further, the silane coupling agent is vinyltriethoxysilane.
Further, the ultraviolet absorber is at least one of UV-531 and UV-P, UV-327.
Further, the composite antioxidant is prepared by mixing an antioxidant DNP and an antioxidant MB according to a mass ratio of (0.5-2) to (0.5-1).
A preparation process of a toughened and modified HDPE material specifically comprises the following steps:
s1: preparing materials: weighing all the raw materials according to the weight parts of the raw materials;
s2: HDPE, polyolefin elastic toughening body, polyurethane elastomer, pentaerythritol stearic acid, transparent nucleating agent, modified carbon nano tube, glass fiber, maleic anhydride graft compatilizer, flame retardant, antioxidant, amino silicone oil, silane coupling agent, ultraviolet absorbent and composite anti-aging agent are placed in a high-speed mixer to be mixed for at least 60min, and after being uniformly mixed, the mixture is added into a double-screw extruder to be subjected to reactive extrusion, dehydration, cooling and grain cutting; obtaining the toughened and modified HDPE material.
Further, the extrusion process of the double-screw extruder comprises the following steps: the first zone is 180-185 ℃, the second zone is 185-190 ℃, the third zone is 190-195 ℃, the fourth zone is 195-200 ℃, the fifth zone is 200-210 ℃ and the head is 210 ℃; the rotation speed of the screw is 200 to 300 r/min.
The technical scheme shows that the invention has the following beneficial effects:
the toughened and modified HDPE material of the invention is added with the polyolefin elastic toughening body, the polyurethane elastomer, pentaerythritol stearic acid, the transparent nucleating agent, the modified carbon nano tube, the maleic anhydride grafted compatilizer and the modification auxiliary agent, has reasonable formula and synergistic effect among the components, particularly the polyolefin elastic toughening body, the polyurethane elastomer and the high-density polyethylene, effectively increases the toughness of the high-density polyethylene, and has excellent wear resistance, electrical insulation property, toughness, cold resistance and aging resistance. Moreover, the preparation process is simple and suitable for mass production.
Detailed Description
The invention will be further elucidated by means of several specific examples, which are intended to be illustrative only and not limiting.
Example 1:
the toughened and modified HDPE material is prepared from the following raw materials in parts by weight: 100 parts of HDPE, 12 parts of polyolefin elastic toughening body, 10 parts of polyurethane elastomer, 6 parts of pentaerythritol stearic acid, 4 parts of transparent nucleating agent, 10 parts of modified carbon nanotube, 14 parts of maleic anhydride grafted compatilizer, 4 parts of glass fiber, 5 parts of flame retardant, 4 parts of antioxidant, 2 parts of dispersant, 6 parts of amino silicone oil, 0.2 part of silane coupling agent, 2 parts of ultraviolet absorbent and 2 parts of composite anti-aging agent.
Furthermore, the diameter of each monofilament of the glass fiber is 12 microns, and each fiber strand consists of 200-1000 monofilaments.
Further, the flame retardant is ammonium dihydrogen phosphate; the antioxidant is 1010, 168 and AO-30.
Further, the silane coupling agent is vinyl triethoxysilane.
Further, the ultraviolet absorbers are UV-531, UV-P and UV-327.
Further, the composite antioxidant is prepared by mixing antioxidant DNP and antioxidant MB in a mass ratio of 1: 1.
A preparation process of a toughened and modified HDPE material specifically comprises the following steps:
s1: preparing materials: weighing all the raw materials according to the weight parts of the raw materials;
s2: HDPE, polyolefin elastic toughening body, polyurethane elastomer, pentaerythritol stearic acid, transparent nucleating agent, modified carbon nano tube, glass fiber, maleic anhydride graft compatilizer, flame retardant, antioxidant, amino silicone oil, silane coupling agent, ultraviolet absorbent and composite anti-aging agent are placed in a high-speed mixer to be mixed for 60min, and after being uniformly mixed, the mixture is added into a double-screw extruder to be subjected to reactive extrusion, dehydration, cooling and grain cutting; obtaining the toughened and modified HDPE material.
Further, the extrusion process of the double-screw extruder comprises the following steps: the first zone is 180-185 ℃, the second zone is 185-190 ℃, the third zone is 190-195 ℃, the fourth zone is 195-200 ℃, the fifth zone is 200-210 ℃ and the head is 210 ℃; the screw rotation speed is 300 r/min.
Example 2:
the toughened and modified HDPE material is prepared from the following raw materials in parts by weight: 100 parts of HDPE, 15 parts of polyolefin elastic toughening body, 8 parts of polyurethane elastomer, 5 parts of pentaerythritol stearic acid, 3 parts of transparent nucleating agent, 12 parts of modified carbon nano tube, 16 parts of maleic anhydride grafted compatilizer, 5 parts of glass fiber, 7 parts of flame retardant, 6 parts of antioxidant, 7 parts of amino silicone oil, 0.3 part of silane coupling agent, 3 parts of ultraviolet absorbent and 3 parts of composite anti-aging agent.
Furthermore, the diameter of each monofilament of the glass fiber is 12 microns, and each fiber strand consists of 200-1000 monofilaments.
Further, the flame retardant is ammonium dihydrogen phosphate; the antioxidant is 1010 and 168.
Further, the silane coupling agent is vinyl triethoxysilane.
Further, the ultraviolet absorbers are UV-531 and UV-327.
Further, the composite antioxidant is prepared by mixing antioxidant DNP and antioxidant MB in a mass ratio of 2: 1.
A preparation process of a toughened and modified HDPE material specifically comprises the following steps:
s1: preparing materials: weighing all the raw materials according to the weight parts of the raw materials;
s2: HDPE, polyolefin elastic toughening body, polyurethane elastomer, pentaerythritol stearic acid, transparent nucleating agent, modified carbon nano tube, glass fiber, maleic anhydride graft compatilizer, flame retardant, antioxidant, amino silicone oil, silane coupling agent, ultraviolet absorbent and composite anti-aging agent are placed in a high-speed mixer to be mixed for 90min, and after being uniformly mixed, the mixture is added into a double-screw extruder to be subjected to reactive extrusion, dehydration, cooling and grain cutting; obtaining the toughened and modified HDPE material.
Further, the extrusion process of the double-screw extruder comprises the following steps: the first zone is 180-185 ℃, the second zone is 185-190 ℃, the third zone is 190-195 ℃, the fourth zone is 195-200 ℃, the fifth zone is 200-210 ℃ and the head is 210 ℃; the screw rotation speed is 250 r/min.
Example 3:
the toughened and modified HDPE material is prepared from the following raw materials in parts by weight: 100 parts of HDPE, 14 parts of polyolefin elastic toughening body, 8 parts of polyurethane elastomer, 5 parts of pentaerythritol stearic acid, 2 parts of transparent nucleating agent, 11 parts of modified carbon nano tube, 15 parts of maleic anhydride grafted compatilizer, 6 parts of glass fiber, 6 parts of flame retardant, 5 parts of antioxidant, 8 parts of amino silicone oil, 0.4 part of silane coupling agent, 4 parts of ultraviolet absorbent and 4 parts of composite anti-aging agent.
Furthermore, the diameter of each monofilament of the glass fiber is 12 microns, and each fiber strand consists of 200-1000 monofilaments.
Further, the flame retardant is ammonium dihydrogen phosphate; the antioxidant is 1010, 168 and AO-30.
Further, the silane coupling agent is vinyl triethoxysilane.
Further, the ultraviolet absorbers are UV-531, UV-P and UV-327.
Further, the composite antioxidant is prepared by mixing antioxidant DNP and antioxidant MB in a mass ratio of 0.5: 1.
A preparation process of a toughened and modified HDPE material specifically comprises the following steps:
s1: preparing materials: weighing all the raw materials according to the weight parts of the raw materials;
s2: HDPE, polyolefin elastic toughening body, polyurethane elastomer, pentaerythritol stearic acid, transparent nucleating agent, modified carbon nano tube, glass fiber, maleic anhydride graft compatilizer, flame retardant, antioxidant, amino silicone oil, silane coupling agent, ultraviolet absorbent and composite anti-aging agent are placed in a high-speed mixer to be mixed for 80min, and after being uniformly mixed, the mixture is added into a double-screw extruder to be subjected to reactive extrusion, dehydration, cooling and grain cutting; obtaining the toughened and modified HDPE material.
Further, the extrusion process of the double-screw extruder comprises the following steps: the first zone is 180-185 ℃, the second zone is 185-190 ℃, the third zone is 190-195 ℃, the fourth zone is 195-200 ℃, the fifth zone is 200-210 ℃ and the head is 210 ℃; the screw rotation speed is 200 r/min.
The foregoing is directed to embodiments of the present invention and it is understood that various modifications may be made without departing from the spirit and scope of the invention.
Claims (10)
1. A toughened and modified HDPE material, which is characterized in that: the toughened and modified HDPE material is prepared from the following raw materials in parts by weight: 100 parts of HDPE, 12-15 parts of polyolefin elastic toughening body, 8-11 parts of polyurethane elastomer, 5-8 parts of pentaerythritol stearic acid, 1-5 parts of transparent nucleating agent, 10-15 parts of modified carbon nanotube, 4-8 parts of glass fiber, 14-18 parts of maleic anhydride graft compatilizer, 5-10 parts of flame retardant, 4-8 parts of antioxidant, 2-4 parts of dispersing agent, 4-10 parts of amino silicone oil, 0.1-0.5 part of silane coupling agent, 2-5 parts of ultraviolet absorbent and 2-4 parts of composite anti-aging agent.
2. A toughened modified HDPE material as claimed in claim 1, characterized in that: the toughened and modified HDPE material is prepared from the following raw materials in parts by weight: 100 parts of HDPE, 12-15 parts of polyolefin elastic toughening body, 8-11 parts of polyurethane elastomer, 5-7 parts of pentaerythritol stearic acid, 2-4 parts of transparent nucleating agent, 10-12 parts of modified carbon nanotube, 4-6 parts of glass fiber, 14-16 parts of maleic anhydride graft compatilizer, 5-7 parts of flame retardant, 4-6 parts of antioxidant, 6-9 parts of amino silicone oil, 0.2-0.4 part of silane coupling agent, 2-4 parts of ultraviolet absorbent and 2-4 parts of composite anti-aging agent.
3. A toughened modified HDPE material as claimed in claim 1, characterized in that: the toughened and modified HDPE material is prepared from the following raw materials in parts by weight: 100 parts of HDPE, 12 parts of polyolefin elastic toughening body, 10 parts of polyurethane elastomer, 6 parts of pentaerythritol stearic acid, 4 parts of transparent nucleating agent, 10 parts of modified carbon nanotube, 4 parts of glass fiber, 14 parts of maleic anhydride graft compatilizer, 5 parts of flame retardant, 4 parts of antioxidant, 2 parts of dispersant, 6 parts of amino silicone oil, 0.2 part of silane coupling agent, 2 parts of ultraviolet absorbent and 2 parts of composite anti-aging agent.
4. A toughened modified HDPE material as claimed in claim 1, characterized in that: the diameter of each monofilament of the glass fiber is 12 microns, and each fiber strand consists of 200-1000 monofilaments.
5. A toughened modified HDPE material as claimed in claim 1, wherein: the flame retardant is ammonium dihydrogen phosphate; the antioxidant is at least one of antioxidant 1010, antioxidant 168 and antioxidant AO-30.
6. A toughened modified HDPE material as claimed in claim 1, wherein: the silane coupling agent is vinyl triethoxysilane.
7. A toughened modified HDPE material as claimed in claim 1, characterized in that: the ultraviolet absorbent is at least one of UV-531 and UV-P, UV-327.
8. A toughened modified HDPE material as claimed in claim 1, characterized in that: the composite anti-aging agent is prepared by mixing an anti-aging agent DNP and an anti-aging agent MB according to a mass ratio of (0.5-2) to (0.5-1).
9. The process for preparing a toughened and modified HDPE material as claimed in any one of claims 1 to 8, wherein: the method specifically comprises the following steps:
s1: preparing materials: weighing all the raw materials according to the weight parts of the raw materials;
s2: HDPE, polyolefin elastic toughening body, polyurethane elastomer, pentaerythritol stearic acid, transparent nucleating agent, modified carbon nano tube, glass fiber, maleic anhydride graft compatilizer, flame retardant, antioxidant, amino silicone oil, silane coupling agent, ultraviolet absorbent and composite anti-aging agent are placed in a high-speed mixer to be mixed for at least 60min, and after being uniformly mixed, the mixture is added into a double-screw extruder to be subjected to reactive extrusion, dehydration, cooling and grain cutting; obtaining the toughened and modified HDPE material.
10. The process of claim 9, wherein the toughening-modified HDPE material comprises: the extrusion process of the double-screw extruder comprises the following steps: the first zone is 180-185 ℃, the second zone is 185-190 ℃, the third zone is 190-195 ℃, the fourth zone is 195-200 ℃, the fifth zone is 200-210 ℃ and the head is 210 ℃; the rotation speed of the screw is 200 to 300 r/min.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112852138A (en) * | 2020-12-31 | 2021-05-28 | 深圳烯湾科技有限公司 | Thermoplastic resin-based conductive composite material and preparation method thereof |
| CN113416359A (en) * | 2021-08-06 | 2021-09-21 | 安徽强茗塑业科技有限公司 | Preparation method of low-temperature-resistant modified plastic |
| CN114805984A (en) * | 2022-04-25 | 2022-07-29 | 广东中讯通讯设备实业有限公司 | High-heat-dissipation HDPE power conduit and preparation method thereof |
| CN115142145A (en) * | 2021-04-16 | 2022-10-04 | 江苏青昀新材料科技有限公司 | Flash-spun sheet of modified polymer |
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