CN104292580A - Composite material for improving comprehensive mechanical properties of HDPE (high-density polyethylene) and preparation method thereof - Google Patents
Composite material for improving comprehensive mechanical properties of HDPE (high-density polyethylene) and preparation method thereof Download PDFInfo
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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
- 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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—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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- 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
- C08L2207/068—Ultra high molecular weight polyethylene
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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
- C08L2207/20—Recycled plastic
Abstract
The invention discloses a composite material for improving the comprehensive mechanical properties of HDPE (high-density polyethylene) and a preparation method thereof. The composite material mainly comprises the following components in parts by weight: 65-75 parts of a polyolefin resin mixture, 15-25 parts of activated semi-reinforcing carbon black, 0.5-3 parts of a coupling agent, 0.2-0.5 part of an antioxidant, 3-6 parts of a lubricant and 0.2-0.8 part of a heat stabilizer. The preparation method comprises the following steps: carrying out alloying treatment on UHMWPE/PPR (ultrahigh molecular weight polyethylene/pentatricopeptide repeats) firstly; introducing activated semi-reinforcing carbon black particle subjected to special treatment into an alloy system; and carrying out banbury mixing on the obtained mixture, so that a multifunctional novel composite material with excellent rigidity, toughness and thermal stability is obtained. The composite material disclosed by the invention is wide in source of raw materials, fully uses waste resources, not only is low in cost and high in economic value, but also achieves the effect of energy conservation and environment friendliness; and a production process of the composite material is simple, feasible, and easily promoted and produced.
Description
Technical field
The present invention relates to a kind of matrix material and preparation method, be specifically related to a kind ofly improve advanced composite material of recycled High Density Polyethylene (HDPE) comprehensive mechanical property and preparation method thereof, belong to general-purpose plastics through engineering approaches, functionalized application technical field.
Background technology
The recycling of waste or used plastics is the measure of a save energy, protection of the environment, is also the Vital Strategic Problems solving shortage of resources.High density polyethylene(HDPE) is owing to having acid and alkali-resistance, and electrical insulating property is excellent, and hardness is large, and the advantages such as tensile strength is high, good rigidly are widely used in the fields such as public works, construction work, railway.After reclaiming high density polyethylene(HDPE) is processed into particle, various physical and mechanical properties such as tensile strength, toughness, thermostability etc. generally decline, cannot meet technical requirementss such as the goods of mechanical property requirements harshness, therefore developing one can, low price good with waste and old high density polyethylene(HDPE) consistency, can improve again high density polyethylene(HDPE) rigidity and toughness and mobility etc. the advanced composite material of over-all properties, improve the added value of product of waste and old high density polyethylene(HDPE), enhance one's market competitiveness, become the urgent problem that in industry, a urgent need solves.
Summary of the invention
The object of the present invention is to provide one significantly can improve the matrix material and preparation method thereof of the intensity of recycled High Density Polyethylene (HDPE), toughness, the comprehensive mechanical property such as mobility and thermostability; Its main raw material source is wide, low production cost, production technique are simple and energy-conserving and environment-protective, takes full advantage of waste and old resource, improves the added value of product of waste and old resource.
To achieve these goals, present invention employs following technical scheme:
Improve a matrix material for HDPE comprehensive mechanical property, the component primarily of following parts by weight forms: 65 ~ 75 parts, polyolefin resin mixture, activation semi-reinforcing hydrocarbon black 15 ~ 25 parts, coupling agent 0.5 ~ 3 part, 0.2 ~ 0.5 part, oxidation inhibitor, lubricant 3 ~ 6 parts and thermo-stabilizer 0.2 ~ 0.8 part.
As the further optimization of technical solution of the present invention, this matrix material forms primarily of the component of following parts by weight: 68 ~ 70 parts, polyolefin resin mixture, activation semi-reinforcing hydrocarbon black 18 ~ 23 parts, coupling agent 0.8 ~ 1.5 part, 0.2 ~ 0.5 part, oxidation inhibitor, lubricant 4 ~ 5 parts and thermo-stabilizer 0.4 ~ 0.6 part.
As the further optimization of technical solution of the present invention, this matrix material forms primarily of the component of following parts by weight: 70 parts, polyolefin resin mixture, activation semi-reinforcing hydrocarbon black 18 parts, coupling agent 1.5 parts, 0.3 part, oxidation inhibitor, lubricant 5 parts and thermo-stabilizer 0.5 part.
Further illustrating as technical solution of the present invention, above-described polyolefin resin mixture is the UHMWPE/PPR alloy co-mixing system that ultrahigh molecular weight polyethylene(UHMWPE) UHMWPE and atactic copolymerized polypropene PPR are formed.
Present invention employs UHMWPE/PPR alloy co-mixing system, its alloying level can control by utilizing mixing technology and twin-screw extrusion technology; Wherein super-high molecular weight polythene blending network plays skeleton function in the material, produces good synergistic effect, and when being subject to external impacts, it comparatively large deformation can occur and, to absorb outside energy, plays toughness reinforcing effect.
Further illustrating as technical solution of the present invention, above-described activation semi-reinforcing hydrocarbon black adopts the semi-reinforcing hydrocarbon black through following activation process step, is specially:
First, by 8 ~ 14 parts of semi-reinforcing hydrocarbon blacks and 0.3 ~ 0.4 part of white oil mixed grinding 15 ~ 20min;
Then, ground mixture is dropped in little high mixer, and 90 DEG C of high-speed stirring, after making temperature rise to 95 DEG C, add 0.4 ~ 0.5 part of aluminate coupling agent, continue to stir 5min, add 0.3 ~ 0.4 part of microcrystalline wax again, continue to stir until temperature puts into material pond, naturally cooling after 100 DEG C, namely obtain activating semi-reinforcing hydrocarbon black.
In the present invention, have employed the semi-reinforcing hydrocarbon black of special preparation, semi-reinforcing hydrocarbon black of the present invention compares ordinary carbon black, it has good dispersiveness and higher purity, show to give UHMWPE/PPR alloy co-mixing system high elongation rate, low-heat-generation, snappiness and good ageing-resistant performance etc. through test, have reinforcement and filling effect concurrently for UHMWPE/PPR alloy.
Further illustrating as technical solution of the present invention, above-described coupling agent is one or more in silane coupling agent, titanate coupling agent, aluminate coupling agent compositions of mixing in any proportion;
Described oxidation inhibitor is more than two or three composition mixed in any proportion in antioxidant 1010, antioxidant 1076, irgasfos 168, oxidation inhibitor 164, oxidation inhibitor DNP, anti-oxidant DLTP;
Described lubricant is more than two or three composition mixed in any proportion in paraffin, white oil, microcrystalline wax, polyethylene wax, stearic acid, butyl stearate, oleylamide, ethylene bis stearamide;
Described thermo-stabilizer is one or both in Zinic stearas, calcium stearate compositions of mixing in any proportion.
In the present invention, add activation semi-reinforcing hydrocarbon black object mainly to gain in strength and hardness.Adding coupling agent can make activation semi-reinforcing hydrocarbon black surface become lipophilicity by wetting ability, the bonding strength at interface is improved, thus reaches and the combining closely of polymkeric substance, the overall performance raising of matrix material.Add oxidation inhibitor and can ensure that material has satisfactory stability in processing use procedure, avoid performance to change.Add lubricant mainly to improve the mobility of polyolefin plastics, improve the dispersiveness of carbon black, reduce internal friction produces in the course of processing heat and mechanical stress, improve the production efficiency of plastic working.Add thermo-stabilizer mainly to prevent from or reduce UHMWPE and PPR being heated and degrading in processing use procedure, extend matrix material work-ing life.
Prepare a method for the matrix material improving HDPE comprehensive mechanical property as previously mentioned, comprise the following steps:
(1) preparation of polyolefin resin mixture
50 parts of ultrahigh molecular weight polyethylene(UHMWPE) UHMWPE, 15 parts of atactic copolymerized polypropene PPR, 0.015 ~ 0.025 part of irgasfos 168 and 0.015 ~ 0.025 part of antioxidant 1010,0.5 part of white oil are dropped in Banbury mixer, and at 165 DEG C of mixing 6min, material pond is put into after forming UHMWPE/PPR alloy co-mixing system, after naturally cooling, obtain required polyolefin resin mixture;
(2) preparation of semi-reinforcing hydrocarbon black is activated
First, by 8 ~ 14 parts of semi-reinforcing hydrocarbon blacks and 0.3 ~ 0.4 part of white oil mixed grinding 15 ~ 20min;
Then, ground mixture is dropped in little high mixer, and 90 DEG C of high-speed stirring, after making temperature rise to 95 DEG C, add 0.4 ~ 0.5 part of aluminate coupling agent, continue to stir 5min, add 0.3 ~ 0.4 part of microcrystalline wax again, continue to stir until temperature puts into material pond, naturally cooling after 100 DEG C, namely obtain activating semi-reinforcing hydrocarbon black;
(3) take each component according to corresponding parts by weight, first polyolefin resin mixture, coupling agent, activation semi-reinforcing hydrocarbon black, partial lubrication agent are dropped in Banbury mixer, and at 165 DEG C of mixing 6min; Then oxidation inhibitor, thermo-stabilizer, remaining lubricant is added successively, and after 130 DEG C of mixing 10min, put into material pond, at room temperature put in twin screw extruder by feed system after naturally cooling, through extrude, cool and pelletizing, drying, packaging, the composite finished product of HDPE comprehensive mechanical property must be improved.
As further illustrating of above-mentioned preparation method, in step (3), the working parameter of described twin screw extruder is: district's temperature 150 ~ 160 DEG C, two district's temperature 170 ~ 180 DEG C, three district's temperature 180 ~ 190 DEG C, four district's temperature 175 ~ 185 DEG C, five district's temperature 170 ~ 175 DEG C, head 160 ~ 175 DEG C, the residence time 2 ~ 3min, pressure is 18 ~ 25MPa.
Advantage of the present invention:
1. in ultrahigh molecular weight polyethylene(UHMWPE), introduce atactic copolymerized polypropene, then by temperature and the stirring velocity control UHMWPE/PPR alloying level of Banbury mixer, substantially improve the impact property of ultrahigh molecular weight polyethylene(UHMWPE), intensity.
2. in alloy system, introduce the activation semi-reinforcing hydrocarbon black through special processing and to achieve carbon black particle dispersed in system, achieve the good result that semi-reinforcing hydrocarbon black significantly improves polyolefine rigidity module, heat-drawn wire and processor performance, and reach the object reducing costs synergy.
3. UHMWPE/PPR mixing in add lubricant (as white oil, microcrystalline wax etc.) and effectively can improve mineral filler and organic resin consistency, improve processing fluidity and the formability of matrix material.
4. raw material sources of the present invention are wide, take full advantage of waste and old resource, not only cheap, economic worth is high, and energy-conserving and environment-protective; And its production technique is simple, feasible, is easy to promote and produces.
Embodiment
The present invention is further described to use specific embodiment below, but protection scope of the present invention is not only confined to following examples.
Embodiment 1:
Improve a matrix material for HDPE comprehensive mechanical property, the component primarily of following part by weight is prepared from: polyolefin resin mixture 65kg, activation semi-reinforcing hydrocarbon black 15kg, 0.5kg silane coupling agent, 0.1kg irgasfos 168,0.1kg antioxidant 1010,0.8kg ethylene bis stearamide, 2.2kg polyethylene wax and 0.2kg calcium stearate.
The preparation method of this matrix material, comprises the following steps:
(1) preparation of polyolefin resin mixture
50kg ultrahigh molecular weight polyethylene(UHMWPE) UHMWPE, 15kg atactic copolymerized polypropene PPR, 0.015kg irgasfos 168 and 0.015kg antioxidant 1010,0.5kg white oil are dropped in Banbury mixer, and at 165 DEG C of mixing 6min, material pond is put into after forming UHMWPE/PPR alloy co-mixing system, after naturally cooling, obtain required polyolefin resin mixture;
(2) preparation of semi-reinforcing hydrocarbon black is activated
First, by 8kg semi-reinforcing hydrocarbon black and 0.3kg white oil mixed grinding 15min;
Then, ground mixture is dropped in little high mixer, and 90 DEG C of high-speed stirring, after making temperature rise to 95 DEG C, add 0.4kg aluminate coupling agent, continue to stir 5min, add 0.3kg microcrystalline wax again, continue to stir until temperature puts into material pond, naturally cooling after 100 DEG C, namely obtain activating semi-reinforcing hydrocarbon black;
(3) take each component according to corresponding parts by weight, first 65kg polyolefin resin mixture, 15kg are activated in semi-reinforcing hydrocarbon black, 0.5kg silane coupling agent, 0.8kg ethylene bis stearamide input Banbury mixer, and at 135 DEG C of mixing 6min; Then 0.1kg irgasfos 168,0.1kg antioxidant 1010,0.2kg calcium stearate, 2.2kg polyethylene wax is added successively, and after 130 DEG C of mixing 10min, put into material pond, at room temperature put in twin screw extruder by feed system after naturally cooling, through extrude, cool and pelletizing, drying, packaging, the composite finished product of HDPE comprehensive mechanical property must be improved.
In above-mentioned steps (3), the working parameter of described twin screw extruder is: district's temperature 150 DEG C, two district's temperature 170 DEG C, three district's temperature 180 DEG C, four district's temperature 175 DEG C, five district's temperature 170 DEG C, head 160 DEG C, residence time 3min, pressure is 18MPa.
Embodiment 2:
Improve a matrix material for HDPE comprehensive mechanical property, the component primarily of following part by weight is prepared from: polyolefin resin mixture 70kg, activation semi-reinforcing hydrocarbon black 18kg, 1.5kg titanate coupling agent, 0.15kg irgasfos 168,0.1kg antioxidant 1076,0.05kg oxidation inhibitor 164,1.2kg ethylene bis stearamide, 2.5kg polyethylene wax, 0.8kg butyl stearate, 0.5kg oleylamide and 0.5kg Zinic stearas.
The preparation method of this matrix material, comprises the following steps:
(1) preparation of polyolefin resin mixture
50kg ultrahigh molecular weight polyethylene(UHMWPE) UHMWPE, 15kg atactic copolymerized polypropene PPR, 0.02kg irgasfos 168 and 0.02kg antioxidant 1010,0.5kg white oil are dropped in Banbury mixer, and at 165 DEG C of mixing 6min, material pond is put into after forming UHMWPE/PPR alloy co-mixing system, after naturally cooling, obtain required polyolefin resin mixture;
(2) preparation of semi-reinforcing hydrocarbon black is activated
First, by 10kg semi-reinforcing hydrocarbon black and 0.35kg white oil mixed grinding 18min;
Then, ground mixture is dropped in little high mixer, and 90 DEG C of high-speed stirring, after making temperature rise to 95 DEG C, add 0.45kg aluminate coupling agent, continue to stir 5min, add 0.35kg microcrystalline wax again, continue to stir until temperature puts into material pond, naturally cooling after 100 DEG C, namely obtain activating semi-reinforcing hydrocarbon black;
(3) take each component according to corresponding parts by weight, first 70kg polyolefin resin mixture, 18kg are activated in semi-reinforcing hydrocarbon black, 1.5kg titanate coupling agent, 1.2kg ethylene bis stearamide input Banbury mixer, and at 135 DEG C of mixing 6min; Then 0.15kg irgasfos 168,0.1kg antioxidant 1076,0.05kg oxidation inhibitor 164,0.5kg Zinic stearas, 2.5kg polyethylene wax, 0.8kg butyl stearate, 0.5kg oleylamide is added successively, and after 130 DEG C of mixing 10min, put into material pond, at room temperature put in twin screw extruder by feed system after naturally cooling, through extrude, cool and pelletizing, drying, packaging, the composite finished product of HDPE comprehensive mechanical property must be improved.
In above-mentioned steps (3), the working parameter of described twin screw extruder is: district's temperature 155 DEG C, two district's temperature 175 DEG C, three district's temperature 185 DEG C, four district's temperature 180 DEG C, five district's temperature 172 DEG C, head 170 DEG C, residence time 2.5min, pressure is 20MPa.
Embodiment 3:
Improve a matrix material for HDPE comprehensive mechanical property, the component primarily of following part by weight is prepared from: polyolefin resin mixture 75kg, activation semi-reinforcing hydrocarbon black 25kg, 2kg titanate coupling agent, 1kg aluminate coupling agent, 0.25kg irgasfos 168,0.25kg antioxidant 1076,1.5kg ethylene bis stearamide, 4kg microcrystalline wax, 0.5kg stearic acid and 0.5kg calcium stearate.
The preparation method of this matrix material, comprises the following steps:
(1) preparation of polyolefin resin mixture
50kg ultrahigh molecular weight polyethylene(UHMWPE) UHMWPE, 15kg atactic copolymerized polypropene PPR, 0.025kg irgasfos 168 and 0.025kg antioxidant 1010,0.5kg white oil are dropped in Banbury mixer, and at 165 DEG C of mixing 6min, material pond is put into after forming UHMWPE/PPR alloy co-mixing system, after naturally cooling, obtain required polyolefin resin mixture;
(2) preparation of semi-reinforcing hydrocarbon black is activated
First, by 14kg semi-reinforcing hydrocarbon black and 0.4kg white oil mixed grinding 20min;
Then, ground mixture is dropped in little high mixer, and 90 DEG C of high-speed stirring, after making temperature rise to 95 DEG C, add 0.5kg aluminate coupling agent, continue to stir 5min, add 0.4kg microcrystalline wax again, continue to stir until temperature puts into material pond, naturally cooling after 100 DEG C, namely obtain activating semi-reinforcing hydrocarbon black;
(3) each component is taken according to corresponding parts by weight, first 75kg polyolefin resin mixture, 25kg are activated in semi-reinforcing hydrocarbon black, 2kg titanate coupling agent, 1kg aluminate coupling agent, 1.5kg ethylene bis stearamide input Banbury mixer, and at 135 DEG C of mixing 6min; Then 0.25kg irgasfos 168,0.25kg antioxidant 1076,0.8kg calcium stearate, 4kg microcrystalline wax, 0.5kg stearic acid is added successively, and after 130 DEG C of mixing 10min, put into material pond, at room temperature put in twin screw extruder by feed system after naturally cooling, through extrude, cool and pelletizing, drying, packaging, the composite finished product of HDPE comprehensive mechanical property must be improved.
In above-mentioned steps (3), the working parameter of described twin screw extruder is: district's temperature 160 DEG C, two district's temperature 180 DEG C, three district's temperature 190 DEG C, four district's temperature 185 DEG C, five district's temperature 175 DEG C, head 175 DEG C, residence time 2min, pressure is 25MPa.
Embodiment 4:
Improve a matrix material for HDPE comprehensive mechanical property, the component primarily of following part by weight is prepared from: polyolefin resin mixture 68kg, activation semi-reinforcing hydrocarbon black 18kg, 0.8kg titanate coupling agent, 0.05kg oxidation inhibitor DNP, 0.05kg anti-oxidant DLTP, 0.1kg antioxidant 1010,1.5kg ethylene bis stearamide, 2.5kg polyethylene wax and 0.4kg Zinic stearas.
The preparation method of this matrix material, comprises the following steps:
(1) preparation of polyolefin resin mixture
50kg ultrahigh molecular weight polyethylene(UHMWPE) UHMWPE, 15kg atactic copolymerized polypropene PPR, 0.025kg irgasfos 168 and 0.025kg antioxidant 1010,0.5kg white oil are dropped in Banbury mixer, and at 165 DEG C of mixing 6min, material pond is put into after forming UHMWPE/PPR alloy co-mixing system, after naturally cooling, obtain required polyolefin resin mixture;
(2) preparation of semi-reinforcing hydrocarbon black is activated
First, by 12kg semi-reinforcing hydrocarbon black and 0.4kg white oil mixed grinding 15min;
Then, ground mixture is dropped in little high mixer, and 90 DEG C of high-speed stirring, after making temperature rise to 95 DEG C, add 0.4kg aluminate coupling agent, continue to stir 5min, add 0.35kg microcrystalline wax again, continue to stir until temperature puts into material pond, naturally cooling after 100 DEG C, namely obtain activating semi-reinforcing hydrocarbon black;
(3) take each component according to corresponding parts by weight, first 68kg polyolefin resin mixture, 18kg are activated in semi-reinforcing hydrocarbon black, 0.8kg titanate coupling agent, 1.5kg ethylene bis stearamide input Banbury mixer, and at 135 DEG C of mixing 6min; Then 0.05kg oxidation inhibitor DNP, 0.05kg anti-oxidant DLTP, 0.1kg antioxidant 1010,0.4kg Zinic stearas, 2.5kg polyethylene wax is added successively, and after 130 DEG C of mixing 10min, put into material pond, at room temperature put in twin screw extruder by feed system after naturally cooling, through extrude, cool and pelletizing, drying, packaging, the composite finished product of HDPE comprehensive mechanical property must be improved.
In above-mentioned steps (3), the working parameter of described twin screw extruder is: district's temperature 150 DEG C, two district's temperature 170 DEG C, three district's temperature 190 DEG C, four district's temperature 185 DEG C, five district's temperature 170 DEG C, head 160 DEG C, residence time 2.5min, pressure is 23MPa.
Embodiment 5:
Improve a matrix material for HDPE comprehensive mechanical property, the component primarily of following part by weight is prepared from: polyolefin resin mixture 70kg, activation semi-reinforcing hydrocarbon black 23kg, 1.5kg aluminate coupling agent, 0.25kg irgasfos 168,0.25kg antioxidant 1010,2kg oleylamide, 3kg polyethylene wax and 0.6kg calcium stearate.
The preparation method of this matrix material, comprises the following steps:
(1) preparation of polyolefin resin mixture
50kg ultrahigh molecular weight polyethylene(UHMWPE) UHMWPE, 15kg atactic copolymerized polypropene PPR, 0.025kg irgasfos 168 and 0.025kg antioxidant 1010,0.5kg white oil are dropped in Banbury mixer, and at 165 DEG C of mixing 6min, material pond is put into after forming UHMWPE/PPR alloy co-mixing system, after naturally cooling, obtain required polyolefin resin mixture;
(2) preparation of semi-reinforcing hydrocarbon black is activated
First, by 12kg semi-reinforcing hydrocarbon black and 0.4kg white oil mixed grinding 15min;
Then, ground mixture is dropped in little high mixer, and 90 DEG C of high-speed stirring, after making temperature rise to 95 DEG C, add 0.4kg aluminate coupling agent, continue to stir 5min, add 0.35kg microcrystalline wax again, continue to stir until temperature puts into material pond, naturally cooling after 100 DEG C, namely obtain activating semi-reinforcing hydrocarbon black;
(3) take each component according to corresponding parts by weight, first 70kg polyolefin resin mixture, 23kg are activated in semi-reinforcing hydrocarbon black, 1.5kg aluminate coupling agent, 2kg oleylamide input Banbury mixer, and at 135 DEG C of mixing 6min; Then 0.25kg irgasfos 168,0.25kg antioxidant 1010,0.6kg calcium stearate, 3kg polyethylene wax is added successively, and after 130 DEG C of mixing 10min, put into material pond, at room temperature put in twin screw extruder by feed system after naturally cooling, through extrude, cool and pelletizing, drying, packaging, the composite finished product of HDPE comprehensive mechanical property must be improved.
In above-mentioned steps (3), the working parameter of described twin screw extruder is: district's temperature 160 DEG C, two district's temperature 170 DEG C, three district's temperature 180 DEG C, four district's temperature 185 DEG C, five district's temperature 175 DEG C, head 160 DEG C, residence time 3min, pressure is 20MPa.
The performance table of matrix material prepared by above-described embodiment:
Claims (8)
1. improve a matrix material for HDPE comprehensive mechanical property, it is characterized in that: the component primarily of following parts by weight forms: 65 ~ 75 parts, polyolefin resin mixture, activation semi-reinforcing hydrocarbon black 15 ~ 25 parts, coupling agent 0.5 ~ 3 part, 0.2 ~ 0.5 part, oxidation inhibitor, lubricant 3 ~ 6 parts and thermo-stabilizer 0.2 ~ 0.8 part.
2. the matrix material improving HDPE comprehensive mechanical property according to claim 1, is characterized in that: the component primarily of following parts by weight forms: 68 ~ 70 parts, polyolefin resin mixture, activation semi-reinforcing hydrocarbon black 18 ~ 23 parts, coupling agent 0.8 ~ 1.5 part, 0.2 ~ 0.5 part, oxidation inhibitor, lubricant 4 ~ 5 parts and thermo-stabilizer 0.4 ~ 0.6 part.
3. the matrix material improving HDPE comprehensive mechanical property according to claim 1, is characterized in that: the component primarily of following parts by weight forms: 70 parts, polyolefin resin mixture, activation semi-reinforcing hydrocarbon black 18 parts, coupling agent 1.5 parts, 0.3 part, oxidation inhibitor, lubricant 5 parts and thermo-stabilizer 0.5 part.
4. the matrix material of the improvement HDPE comprehensive mechanical property according to any one of claim 1-3, is characterized in that: described polyolefin resin mixture is UHMWPE/PPR alloy co-mixing system that ultrahigh molecular weight polyethylene(UHMWPE) UHMWPE and atactic copolymerized polypropene PPR are formed.
5. the matrix material of the improvement HDPE comprehensive mechanical property according to any one of claim 1-3, is characterized in that: described activation semi-reinforcing hydrocarbon black adopts the semi-reinforcing hydrocarbon black through following activation process step, is specially:
First, by 8 ~ 14 parts of semi-reinforcing hydrocarbon blacks and 0.3 ~ 0.4 part of white oil mixed grinding 15 ~ 20min;
Then, ground mixture is dropped in little high mixer, and 90 DEG C of high-speed stirring, after making temperature rise to 95 DEG C, add 0.4 ~ 0.5 part of aluminate coupling agent, continue to stir 5min, add 0.3 ~ 0.4 part of microcrystalline wax again, continue to stir until temperature puts into material pond, naturally cooling after 100 DEG C, namely obtain activating semi-reinforcing hydrocarbon black.
6. the matrix material of the improvement HDPE comprehensive mechanical property according to any one of claim 1-3, is characterized in that: described coupling agent is one or more in silane coupling agent, titanate coupling agent, aluminate coupling agent compositions of mixing in any proportion;
Described oxidation inhibitor is more than two or three composition mixed in any proportion in antioxidant 1010, antioxidant 1076, irgasfos 168, oxidation inhibitor 164, oxidation inhibitor DNP, anti-oxidant DLTP;
Described lubricant is more than two or three composition mixed in any proportion in paraffin, white oil, microcrystalline wax, polyethylene wax, stearic acid, butyl stearate, oleylamide, ethylene bis stearamide;
Described thermo-stabilizer is one or both in Zinic stearas, calcium stearate compositions of mixing in any proportion.
7. prepare a method for the matrix material improving HDPE comprehensive mechanical property as described in any one of claim 1-6, it is characterized in that: comprise the following steps:
(1) preparation of polyolefin resin mixture
50 parts of ultrahigh molecular weight polyethylene(UHMWPE) UHMWPE, 15 parts of atactic copolymerized polypropene PPR, 0.015 ~ 0.025 part of irgasfos 168 and 0.015 ~ 0.025 part of antioxidant 1010,0.5 part of white oil are dropped in Banbury mixer, and at 165 DEG C of mixing 6min, material pond is put into after forming UHMWPE/PPR alloy co-mixing system, after naturally cooling, obtain required polyolefin resin mixture;
(2) preparation of semi-reinforcing hydrocarbon black is activated
First, by 8 ~ 14 parts of semi-reinforcing hydrocarbon blacks and 0.3 ~ 0.4 part of white oil mixed grinding 15 ~ 20min;
Then, ground mixture is dropped in little high mixer, and 90 DEG C of high-speed stirring, after making temperature rise to 95 DEG C, add 0.4 ~ 0.5 part of aluminate coupling agent, continue to stir 5min, add 0.3 ~ 0.4 part of microcrystalline wax again, continue to stir until temperature puts into material pond, naturally cooling after 100 DEG C, namely obtain activating semi-reinforcing hydrocarbon black;
(3) take each component according to corresponding parts by weight, first polyolefin resin mixture, coupling agent, activation semi-reinforcing hydrocarbon black, partial lubrication agent are dropped in Banbury mixer, and at 165 DEG C of mixing 6min; Then oxidation inhibitor, thermo-stabilizer, remaining lubricant is added successively, and after 130 DEG C of mixing 10min, put into material pond, put in twin screw extruder by feed system after at room temperature naturally cooling fragmentation, through extrude, cool and pelletizing, drying, packaging, the composite finished product of HDPE comprehensive mechanical property must be improved.
8. preparation according to claim 7 improves the method for the matrix material of HDPE comprehensive mechanical property, it is characterized in that: in step (3), the working parameter of described twin screw extruder is: district's temperature 150 ~ 160 DEG C, two district's temperature 170 ~ 180 DEG C, three district's temperature 180 ~ 190 DEG C, four district's temperature 175 ~ 185 DEG C, five district's temperature 170 ~ 175 DEG C, head 160 ~ 175 DEG C, the residence time 2 ~ 3min, pressure is 18 ~ 25MPa.
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