CN102061030B - High-abrasion-resistant corrosion-resistant inorganic particle crosslinking polyethylene composite material and preparation method thereof - Google Patents
High-abrasion-resistant corrosion-resistant inorganic particle crosslinking polyethylene composite material and preparation method thereof Download PDFInfo
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Abstract
The invention relates to a crosslinking polyethylene composite material and a preparation method thereof, in particular to a high-abrasion-resistant corrosion-resistant inorganic particle crosslinking polyethylene composite material and a preparation method thereof. The high-abrasion-resistant corrosion-resistant inorganic particle crosslinking polyethylene composite material consists of a component A and a component B, wherein the component A comprises 100 percent of linear low-concentration polyethylene, 10-30 percent of polyethylene modifying agent and 0.1-5 percent of antioxygen; the component B comprises 30-70 percent of high-concentration polyethylene, 70-30 percent of linear low-concentration polyethylene, 10-30 percent of ultrafine Al2O3, 5-15 percent of nanometer MoS2, 0.1-1.0 percent of scattered lubricant, 0.2-0.5 percent of surface treating agent, 0.1-1 percent of cross-linking agent and 0.2-1.5 percent of auxiliary crosslinking agent. The basic resin adopted in the invention is a composite material of high-concentration polyethylene and linear low-concentration polyethylene, the invention ensures the sufficient crosslinking effect and reduces the crystallinity to the maximum extent so that the crosslinking material has excellent rigidity and hardness and excellent chemical corrosion resistance and barrier property.
Description
Technical field
The present invention relates to a kind of Cross-linked Polyethylene Composites and preparation method thereof, a kind of specifically high abrasion anticorrosive nano inorganic particulate Cross-linked Polyethylene Composites and preparation method thereof.
Background technology
Along with expanding economy, urgent day by day and class improves constantly every profession and trades such as chemical industry, oil, boats and ships, power plant, PW to requirements for anticorrosion such as pipeline, pumps, and the material antiseptic performance has also been proposed increasingly high requirement.In order to give pipeline more superior antiseptic property, once adopted plastics tubing to replace steel pipe, but,, limited its use range widely because intensity, the stiffness of plastics tubing are not enough in most of use occasions.The composite metal plastic corrosion-proof pipe is at the good plastic coating protective membrane of steel pipe walls surface applied one deck; It has not only overcome the not enough weakness of plastic tube intensity rigidity; And have the good wear resistance of plastics, preservative property, when carrying some media, be difficult for forming the characteristics of dirt.Yet, common thermoplasticity corrosion-proof lining, for example thermoplasticity rotational moulding Vilaterm requiring harsh Application Areas (high temperature alkali corrosion, halogen are acid liquid corrosion), still can not meet the demands.Under height corrosion operating environment, must adopt the higher thermosetting material of antiseptic property.These materials generally adopted clinkery epoxy powder (FBE), coal tar enamel (CTE) and Vilaterm composite structure (three layers of PE) in the past.The overall antiseptic property of these anticorrosion coatings can satisfy the requirement of oil-gas pipeline corrosion protection, and (the clinkery epoxy powder preservative coat is thinner, anti-physical abuse intensity difference but still have separately defective; Coal tar enamel is cold short, hot-fluid drops down and to the pollution that environment possibly cause, make its application surface more and more narrow; Vilaterm three-layer composite structure anticorrosive construction complex process).Patent CN101240134A has announced a kind of epoxy modifying polyethylene bi-component powdery paints, and this material forms inierpeneirating network structure suitably under the environment crosslinking reaction taking place, and has good corrosion prevention performance; But the material viscosity that this method adopts is bigger, and epoxy resin particularly is in order to obtain good mechanical property; General employing HV epoxy, so tack of materials is big, is not suitable for roll moulding shaping technology; And in this preparation methods, the adding of inorganic particulate belongs to dry mixing process; Disperse inhomogeneously, when being used for rotation molding, very easily be deposited between metallic conduit and the inner lining material; Greatly reduce the cohesive force between inner lining material and the metal, under subnormal ambient, be prone to cause shelling.Patent CN87100920A has announced the coating method of a kind of anti-corrosion wear resisting powder paint and this coating, with epoxy resin, and nylon powder; Dyhard RU 100, glass-cermic powder have been feedstock production protective system, the effect that this coating has concurrently is anticorrosion, wear-resisting, strengthen; Can be used for metallic conduit; Anticorrosion in the acid or alkali environment, but same because tack of materials is bigger, be more suitable for spraying coating process.
In order to obtain higher production efficiency, rotational molding technique has obtained using widely in anticorrosion industry in recent years.At present, the shared ratio of linear low density polyethylene is 93% in the middle of the domestic rotational moulding raw material.In above-mentioned high corrosion-resistant field, because linear low density polyethylene is corrosion-resistant, wear-resisting, impermeable, the shortcoming of heat-resisting creep properties aspect has limited the application of linear low density polyethylene.
Crosslinked polyethylene rotational moulding material begins to be applied in the corrosion-proof lining aspect with the meliority of high impact property, heat-resisting, resisting environmental stress and cracking, highly anticorrosion aspect.At present, the research of crosslinked polyethylene mainly concentrates on the silane crosslinking technology aspect of linear low density polyethylene.Patent CN 1876706A has announced the preparation method of silane crosslinked polyethylene plastic; This method is widely used in anti-crack tube, CABLE MATERIALS aspect; But the material of this technological forming must pass through water-bath (or steam bath) aftertreatment; Increased technical process and cost, and the degree of crosslinking of material is not high, can not satisfies the requirement of height rot-resistant.Patent CN1524899A, CN1523052A are base resin with linear low density polyethylene and new LDPE (film grade) compounding ingredient; Adopt peroxide crosslinking prepared crosslinked polyethylene rotational moulding PP Pipe Compound, the crosslinked polyethylene of this prepared has good shock resistance and chemical resistance, but two kinds of raw materials all are new LDPE (film grade)s; The corrosion resistance nature of raw material is reported to the leadship after accomplishing a task relatively; Through after crosslinked, density further reduces, though material can the corrosion of dissolved property; But by the swelling property corrosion, in fact be not suitable for the pipeline that the burn into barrier is had relatively high expectations easily; In addition, patent CN1039039A adopts the radiating method to prepare the radial pattern crosslinked polyethylene, and material is used for the repaired mouth aspect of oil field gathering and transportation steel corrosion-resistanting insulation pipe.Yet, chemically crosslinked relatively, radiation crosslinking efficient is very low, and the material degree of crosslinking is low, can't satisfy requirement for anticorrosion, and because device-restrictive is anticorrosion in the small-bore long pipeline of very difficult realization.
Summary of the invention
Technical problem to be solved by this invention is: to the shortcoming of above prior art existence; A kind of high abrasion anticorrosive nano inorganic particulate Cross-linked Polyethylene Composites and preparation method thereof is proposed; Can make matrix material have superior stiffness and hardness, have excellent resistance to chemical attack and barrier simultaneously.The technical scheme that the present invention solves above technical problem is:
High abrasion anticorrosive nano inorganic particulate Cross-linked Polyethylene Composites is made up of A and B two components;
The A compositions in weight percentage is made up of following raw material; Raw material measures with linear low density polyethylene numerical value: linear low density polyethylene: 100%; PE modified dose: 10-30% (being the 10-30% of linear low density polyethylene amount), oxidation inhibitor: 0.1-5% (being the 0.1-5% of linear low density polyethylene amount);
The B compositions in weight percentage is made up of following raw material, and raw material measures with Vilaterm (high density polyethylene(HDPE) and linear low density polyethylene sum) numerical value: high density polyethylene(HDPE): 30-70%, linear low density polyethylene: 70-30%, ultra-fine Al
2O
3: 10-30% (10-30% of high density polyethylene(HDPE) and linear low density polyethylene sum), nanometer MoS
2: 5-15% (5-15% of high density polyethylene(HDPE) and linear low density polyethylene sum); Dispersed lubricant: 0.1-1.0% (0.1-1.0% of high density polyethylene(HDPE) and linear low density polyethylene sum); Surface treatment agent: 0.2-0.5% (0.2-0.5% of high density polyethylene(HDPE) and linear low density polyethylene sum); Linking agent: 0.1-1% (0.1-1% of high density polyethylene(HDPE) and linear low density polyethylene sum), additional crosslinker: 0.2-1.5% (0.2-1.5% of high density polyethylene(HDPE) and linear low density polyethylene sum);
High density polyethylene(HDPE) density is 0.95-0.97g/cm
3, melt flow rate(MFR) 5-20g/10min; Linear low density polyethylene density is 0.93-0.94 g/cm
3, melt flow rate(MFR) 5-20g/10min.
The preparation method of high abrasion anticorrosive nano inorganic particulate Cross-linked Polyethylene Composites, carry out according to the following steps:
⑴ the preparation of A component: with linear low density polyethylene in advance drying treatment to moisture content be lower than 600ppm, and weigh in impeller thorough mixing 2-10 minute with oxidation inhibitor by a certain percentage with PE modified dose; Extruding pelletization in twin screw extruder then; Extrusion temperature is 120-220 ℃, and screw speed is 200-500rpm, behind extruding pelletization; Abrasive dust 50-100 order also is dried to moisture content with powder and is lower than 600ppm, at last in the Surface Treatment with Plasma appearance surface treatment 15-25 minute subsequent use;
⑵ the preparation of B component: with high density polyethylene(HDPE) and linear low density polyethylene in advance drying treatment to moisture content be lower than 600ppm, abrasive dust 30-50 order; Linking agent and additional crosslinker are weighed by a certain percentage, and in magnetic stirrer thorough mixing 2-10 minute; With surface treatment agent and ultra-fine Al
2O
3,Nanometer MoS
2Mixed 2-8 minute according to a certain ratio, and in high-speed mixer; With the Al that is mixed with surface treatment agent
2O
3, nanometer MoS
2, linking agent, additional crosslinker and dispersed lubricant and in advance the Vilaterm of abrasive dust weigh by a certain percentage; And in mould in the mixing machine and to mix 5-10 minute; Then at 120-220 ℃; After screw speed was the 200-500rpm extruding pelletization, abrasive dust 30-50 order also was dried to moisture content with powder and is lower than 600ppm;
⑶ the preparation of matrix material: after taking by weighing A component and B component in proportion, in high-speed mixer thorough mixing 5-10 minute, be stored in the packing.
The technical scheme that the present invention further limits is:
Aforesaid high abrasion anticorrosive nano inorganic particulate Cross-linked Polyethylene Composites, ultra-fine Al
2O
3Be highly purified Al
2O
3, fineness 5000-10000 order; Nanometer MoS
2Fineness 10000-50000 order.
Aforesaid high abrasion anticorrosive nano inorganic particulate Cross-linked Polyethylene Composites, linking agent is the peroxide type linking agent, is 2,5-dimethyl--2; Two (t-butyl peroxy) hexanes of 5-, two two or four-[two (2,4 dichloro benzene formyl) superoxide, peroxo-two (4-toluyl); Di Cumyl Peroxide 99, two (tert-butyl hydroperoxide sec.-propyl) benzene, 1,1-di-t-butyl methyl-3; 5,5-trimethyl-cyclohexane, 1; 1-di-t-butyl methyl-3,5, one or more mixing in the 5-trimethyl-cyclohexane.
Aforesaid high abrasion anticorrosive nano inorganic particulate Cross-linked Polyethylene Composites, additional crosslinker is a cyanacrylate, triallylcyanurate, one or more mixing in the trimethylolpropane trimethacrylate.
Aforesaid high abrasion anticorrosive nano inorganic particulate Cross-linked Polyethylene Composites, surface treatment agent is 3-triethoxysilyl-1-propylamine, γ-An Bingjisanyiyangjiguiwan (KH550); γ-glycidyl ether oxygen propyl trimethoxy silicane (560KH); γ-(methacryloxypropyl) propyl trimethoxy silicane (KH 570), Triple Pressed Stearic Acid, titanic acid ester; The aluminic acid ester, one or more mixing in the zirconate.
Aforesaid high abrasion anticorrosive nano inorganic particulate Cross-linked Polyethylene Composites, dispersed lubricant is an ethylene bis stearamide, PE wax, montanic acid, calcium stearate, one or more mixing in the Triple Pressed Stearic Acid.
Aforesaid high abrasion anticorrosive nano inorganic particulate Cross-linked Polyethylene Composites; Oxidation inhibitor is the composite antioxidant that phosphite ester kind antioxidant and Hinered phenols antioxidant are formed, and wherein phosphite ester kind antioxidant and Hinered phenols antioxidant are formed by weight 1:0.3～1:0.7.
Aforesaid high abrasion anticorrosive nano inorganic particulate Cross-linked Polyethylene Composites, PE modified dose is tasteless polycthylene grafted maleic anhydride.
Advantage of the present invention is: the base resin that the present invention adopted is the matrix material of high density polyethylene(HDPE) and linear low density polyethylene; Promptly having guaranteed has enough cross-linking efficiencies; Reduced simultaneously the reduction of percent crystallinity to the full extent; Make the material after crosslinked have superior stiffness and hardness, have excellent resistance to chemical attack and barrier simultaneously.
The crosslinking process that the present invention adopted is a peroxide crosslinking technology, and the degree of crosslinking of matrix material is higher, and corresponding with it impact is anticorrosion excellent with barrier, does not need follow-up steam or poach to handle simultaneously, and technology is simple.
A component granularity is less than the B component in the matrix material provided by the invention, and A component fusing point is lower than the B component, in the rotation molding process; Can guarantee the elder generation's fusion of A component and stick to die surface; Because the A component contains properties-correcting agent and through radiotreatment, has introduced a large amount of polar groups, has improved the cohesive force between inner lining material and the metal greatly; Guarantee that material can not shell under negative pressure state; The B component is because fusing point is high, and the hysteresis fusion also forms the crosslinking structure of " superslide is high hard ", improves wear-resisting, heat-resisting, the antiseptic property of material.
Embodiment
Embodiment one
Prescription:
A raw material that component comprises has:
Linear low density polyethylene LLDPE 735 100%
PE modified dose 20%
Oxidation inhibitor 0.3%;
B raw material that component comprises has:
High density polyethylene HMA025 40%
Linear low density polyethylene LLDPE 735 60%
Ultra-fine Al2O3 10%
Nanometer MoS2 5%
Dispersed lubricant 0.5%
Surface treatment agent 0.3%
Linking agent 0.4%
Additional crosslinker 0.6%.
Ultra-fine Al
2O
3Be highly purified Al
2O
3, fineness 5000 orders; Nanometer MoS
2Fineness 10000 orders.
Linking agent is the peroxide type linking agent, is 2,5-dimethyl--2, two (t-butyl peroxy) hexanes of 5-.Additional crosslinker is a cyanacrylate.Surface treatment agent is γ-glycidyl ether oxygen propyl trimethoxy silicane (560KH).Dispersed lubricant is an ethylene bis stearamide.Oxidation inhibitor is the composite antioxidant that phosphite ester kind antioxidant and Hinered phenols antioxidant are formed, and wherein phosphite ester kind antioxidant and Hinered phenols antioxidant are formed by weight 1:0.3.PE modified dose is tasteless polycthylene grafted maleic anhydride.
The preparation of matrix material.
⑴ the preparation of A component: with linear low density polyethylene in advance drying treatment to moisture content be lower than 500ppm, and weigh by a certain percentage with oxidation inhibitor with PE modified dose, thorough mixing is 5 minutes in impeller; Extruding pelletization in twin screw extruder then, extrusion temperature is 150 ℃, and screw speed is 400rpm, and behind extruding pelletization, abrasive dust 70 orders also are dried to moisture content 500ppm with powder, and surface treatment 15 minutes is subsequent use in the Surface Treatment with Plasma appearance at last;
⑵ the preparation of B component: with high density polyethylene(HDPE) and linear low density polyethylene in advance drying treatment to moisture content 500ppm, abrasive dust 35 orders; Linking agent and additional crosslinker are weighed by a certain percentage, and in magnetic stirrer thorough mixing 5 minutes; With surface treatment agent and ultra-fine Al
2O
3,Nanometer MoS
2Mixed 5 minutes according to a certain ratio, and in high-speed mixer; With the Al that is mixed with surface treatment agent
2O
3, nanometer MoS
2, linking agent, additional crosslinker and dispersed lubricant and in advance the Vilaterm of abrasive dust weigh by a certain percentage; And in mould in the mixing machine and to mix 10 minutes; Then at 150 ℃, after screw speed was the 400RPM extruding pelletization, abrasive dust 36 orders also were dried to moisture content 500ppm with powder;
⑶ the preparation of matrix material: 30/70 take by weighing after A material expects with B by weight proportion, thorough mixing is 10 minutes in high-speed mixer, is stored in the packing.
The performance index of embodiment one are seen table 1.
Embodiment two
Prescription:
A raw material that component comprises has:
Linear low density polyethylene LLDPE 735 100%
PE modified dose 20%
Oxidation inhibitor 0.3%
B raw material that component comprises has:
High density polyethylene HMA025 40%
Linear low density polyethylene LLDPE 735 60%
Ultra-fine Al2O3 15%
Nanometer MoS2 5%
Dispersed lubricant 0.5%
Surface treatment agent 0.3%
Linking agent 0.3%
Additional crosslinker 0.5%.
Ultra-fine Al
2O
3Be highly purified Al
2O
3, fineness 5000 orders; Nanometer MoS
2Fineness 10000 orders.
Linking agent is the peroxide type linking agent, is 2,5-dimethyl--2, two (t-butyl peroxy) hexanes of 5-.Additional crosslinker is a cyanacrylate.Surface treatment agent is γ-glycidyl ether oxygen propyl trimethoxy silicane (560KH).Dispersed lubricant is an ethylene bis stearamide.Oxidation inhibitor is the composite antioxidant that phosphite ester kind antioxidant and Hinered phenols antioxidant are formed, and wherein phosphite ester kind antioxidant and Hinered phenols antioxidant are formed by weight 1:0.4.
PE modified dose is tasteless polycthylene grafted maleic anhydride.
The preparation method, carry out according to the following steps:
⑴ the preparation of A component: with linear low density polyethylene in advance drying treatment and weigh by a certain percentage with oxidation inhibitor to moisture content 550ppm with PE modified dose, thorough mixing is 5 minutes in impeller; Extruding pelletization in twin screw extruder then, extrusion temperature is 180 ℃, and screw speed is 300rpm, and behind extruding pelletization, abrasive dust 60 orders also are dried to moisture content 550ppm with powder, and surface treatment 20 minutes is subsequent use in the Surface Treatment with Plasma appearance at last;
⑵ the preparation of B component: with high density polyethylene(HDPE) and linear low density polyethylene in advance drying treatment to moisture content 550ppm, abrasive dust 35 orders; Linking agent and additional crosslinker are weighed by a certain percentage, and in magnetic stirrer thorough mixing 4 minutes; With surface treatment agent and ultra-fine Al
2O
3,Nanometer MoS
2Mixed 4 minutes according to a certain ratio, and in high-speed mixer; With the Al that is mixed with surface treatment agent
2O
3, nanometer MoS
2, linking agent, additional crosslinker and dispersed lubricant and in advance the Vilaterm of abrasive dust weigh by a certain percentage; And in mould in the mixing machine and to mix 7 minutes; Then at 160 ℃, after screw speed was the 300rpm extruding pelletization, abrasive dust 35 orders also were dried to moisture content 550ppm with powder;
⑶ the preparation of matrix material: 40/60 take by weighing after A material expects with B by weight proportion, thorough mixing is 7 minutes in high-speed mixer, is stored in the packing.
The performance index of embodiment two are seen table 1.
Embodiment three
Prescription:
A raw material that component comprises has:
Linear low density polyethylene LLDPE 735 100%
PE modified dose 15%
Oxidation inhibitor 0.3%;
B raw material that component comprises has:
High density polyethylene HMA025 30%
Linear low density polyethylene LLDPE 735 70%
Ultra-fine Al2O3 10%
Nanometer MoS2 5%
Dispersed lubricant 0.4%
Surface treatment agent 0.3%
Linking agent 0.2%
Additional crosslinker 0.4%.
Ultra-fine Al
2O
3Be highly purified Al
2O
3, fineness 5000 orders; Nanometer MoS
2Fineness 10000 orders.
Linking agent is the peroxide type linking agent, is 2,5-dimethyl--2, two (t-butyl peroxy) hexanes of 5-.Additional crosslinker is a cyanacrylate.Surface treatment agent is γ-glycidyl ether oxygen propyl trimethoxy silicane (560KH).Dispersed lubricant is an ethylene bis stearamide.Oxidation inhibitor is the composite antioxidant that phosphite ester kind antioxidant and Hinered phenols antioxidant are formed, and wherein phosphite ester kind antioxidant and Hinered phenols antioxidant are formed by weight 1:0.6.
PE modified dose is tasteless polycthylene grafted maleic anhydride.
The preparation method, carry out according to the following steps:
⑴ the preparation of A component: with linear low density polyethylene in advance drying treatment and weigh by a certain percentage with oxidation inhibitor to moisture content 400ppm with PE modified dose, thorough mixing is 8 minutes in impeller; Extruding pelletization in twin screw extruder then; Extrusion temperature is 200 ℃, and screw speed is 400rpm, behind extruding pelletization; Abrasive dust 80 orders also are dried to moisture content 400ppm with powder, and surface treatment 20 minutes (15-25 minute) is subsequent use in the Surface Treatment with Plasma appearance at last;
⑵ the preparation of B component: with high density polyethylene(HDPE) and linear low density polyethylene in advance drying treatment to moisture content 400ppm, abrasive dust 45 orders; Linking agent and additional crosslinker are weighed by a certain percentage, and in magnetic stirrer thorough mixing 8 minutes; With surface treatment agent and ultra-fine Al
2O
3,Nanometer MoS
2Mixed 7 minutes according to a certain ratio, and in high-speed mixer; With the Al that is mixed with surface treatment agent
2O
3, nanometer MoS
2, linking agent, additional crosslinker and dispersed lubricant and in advance the Vilaterm of abrasive dust weigh by a certain percentage; And in mould in the mixing machine and to mix 8 minutes; Then at 200 ℃, after screw speed was the 450rpm extruding pelletization, abrasive dust 45 orders also were dried to moisture content 400ppm with powder;
⑶ the preparation of matrix material: 50/50 take by weighing after A material expects with B by weight proportion, thorough mixing is 8 minutes in high-speed mixer, is stored in the packing.
The performance index of embodiment three are seen table 1.
Embodiment four
Prescription:
A raw material that component comprises has:
Linear low density polyethylene LLDPE 735 100%
PE modified dose 30%
Oxidation inhibitor 0.4%;
B raw material that component comprises has:
High density polyethylene HMA025 70%
Linear low density polyethylene LLDPE 735 30%
Ultra-fine Al2O3 20%
Nanometer MoS2 10%
Dispersed lubricant 0.5%
Surface treatment agent 0.5%
Linking agent 0.6%
Additional crosslinker 0.8%.
Ultra-fine Al
2O
3Be highly purified Al
2O
3, fineness 5000 orders; Nanometer MoS
2Fineness 10000 orders.
Linking agent is the peroxide type linking agent, is 2,5-dimethyl--2, two (t-butyl peroxy) hexanes of 5-.Additional crosslinker is a cyanacrylate.Surface treatment agent is γ-glycidyl ether oxygen propyl trimethoxy silicane (560KH).Dispersed lubricant is an ethylene bis stearamide.Oxidation inhibitor is the composite antioxidant that phosphite ester kind antioxidant and Hinered phenols antioxidant are formed, and wherein phosphite ester kind antioxidant and Hinered phenols antioxidant are formed by weight 1:0.7.
PE modified dose is tasteless polycthylene grafted maleic anhydride.
The preparation method, carry out according to the following steps:
⑴ the preparation of A component: with linear low density polyethylene in advance drying treatment and weigh by a certain percentage with oxidation inhibitor to moisture content 500ppm with PE modified dose, thorough mixing is 10 minutes in impeller; Extruding pelletization in twin screw extruder then, extrusion temperature is 220 ℃, and screw speed is 500rpm, and behind extruding pelletization, abrasive dust 100 orders also are dried to moisture content 500ppm with powder, and surface treatment 20 minutes is subsequent use in the Surface Treatment with Plasma appearance at last;
⑵ the preparation of B component: with high density polyethylene(HDPE) and linear low density polyethylene in advance drying treatment to moisture content 500ppm, abrasive dust 50 orders; Linking agent and additional crosslinker are weighed by a certain percentage, and in magnetic stirrer thorough mixing 10 minutes; With surface treatment agent and ultra-fine Al
2O
3,Nanometer MoS
2Mixed 8 minutes according to a certain ratio, and in high-speed mixer; With the Al that is mixed with surface treatment agent
2O
3, nanometer MoS
2, linking agent, additional crosslinker and dispersed lubricant and in advance the Vilaterm of abrasive dust weigh by a certain percentage; And in mould in the mixing machine and to mix 10 minutes; Then at 220 ℃, after screw speed was the 500rpm extruding pelletization, abrasive dust 50 orders also were dried to moisture content 500ppm with powder;
⑶ the preparation of matrix material: 35/65 take by weighing after A material expects with B by weight proportion, thorough mixing is 10 minutes in high-speed mixer, is stored in the packing.
The performance index of embodiment four are seen table 1.
The present invention can also have other embodiment, and the technical scheme that equal replacement of all employings or equivalent transformation form all drops within the scope of requirement protection of the present invention.
Claims (7)
1. high abrasion anticorrosive nano inorganic particulate Cross-linked Polyethylene Composites is characterized in that: be made up of A and B two components;
Said A compositions in weight percentage is made up of following raw material, and said raw material measures with linear low density polyethylene numerical value:
Linear low density polyethylene 100%
PE modified dose of 10-30%
Oxidation inhibitor 0.1-5%;
Said B compositions in weight percentage is made up of following raw material, and said raw material measures with Vilaterm numerical value:
High density polyethylene(HDPE) 30-70%
Linear low density polyethylene 70-30%
Ultra-fine Al
2O
310-30%
Nanometer MoS
25-15%
Dispersed lubricant 0.1-1.0%
Surface treatment agent 0.2-0.5%
Linking agent 0.1-1%
Additional crosslinker 0.2-1.5%;
Said high density polyethylene(HDPE) density is 0.95-0.97g/cm
3, melt flow rate(MFR) 5-20g/10min; Said linear low density polyethylene density is 0.93-0.94 g/cm
3, melt flow rate(MFR) 5-20g/10min; Said ultra-fine Al
2O
3Be highly purified Al
2O
3, its fineness is the 5000-10000 order; Said nanometer MoS
2Fineness is the 10000-50000 order;
The preparation of said A component:
With linear low density polyethylene in advance drying treatment to moisture content be lower than 600ppm, and weigh in impeller thorough mixing 2-10 minute with oxidation inhibitor by a certain percentage with PE modified dose; Extruding pelletization in twin screw extruder then; Extrusion temperature is 120-220 ℃, and screw speed is 200-500rpm, behind extruding pelletization; Abrasive dust 50-100 order also is dried to moisture content with powder and is lower than 600ppm, and surface treatment 20 minutes is subsequent use in the Surface Treatment with Plasma appearance at last;
The preparation of said B component:
With high density polyethylene(HDPE) and linear low density polyethylene in advance drying treatment to moisture content be lower than 600ppm, abrasive dust 30-50 order; Linking agent and additional crosslinker are weighed by a certain percentage, and in magnetic stirrer thorough mixing 2-10 minute; With surface treatment agent and ultra-fine Al
2O
3,Nanometer MoS
2Mixed 2-8 minute according to a certain ratio, and in high-speed mixer; With the Al that is mixed with surface treatment agent
2O
3, nanometer MoS
2, linking agent, additional crosslinker and dispersed lubricant and in advance the Vilaterm of abrasive dust weigh by a certain percentage; And in the middling speed mixing machine, mixed 5-10 minute; Then at 120-220 ℃; After screw speed was the 200-500rpm extruding pelletization, abrasive dust 30-50 order also was dried to moisture content with powder and is lower than 600ppm;
The preparation of said matrix material:
After taking by weighing A component and B component in proportion, in high-speed mixer thorough mixing 5-10 minute, be stored in the packing.
2. high abrasion anticorrosive nano inorganic particulate Cross-linked Polyethylene Composites as claimed in claim 1; It is characterized in that: said linking agent is the peroxide type linking agent, is 2,5-dimethyl--2; Two (t-butyl peroxy) hexanes of 5-; Peroxo-two (4-toluyl), Di Cumyl Peroxide 99, one or more mixing in two (tert-butyl hydroperoxide sec.-propyl) benzene.
3. high abrasion anticorrosive nano inorganic particulate Cross-linked Polyethylene Composites as claimed in claim 1, it is characterized in that: said additional crosslinker is a cyanacrylate, one or more mixing in the trimethylolpropane trimethacrylate.
4. high abrasion anticorrosive nano inorganic particulate Cross-linked Polyethylene Composites as claimed in claim 1 is characterized in that: said surface treatment agent is 3-triethoxysilyl-1-propylamine, γ-An Bingjisanyiyangjiguiwan; γ-glycidyl ether oxygen propyl trimethoxy silicane; γ-(methacryloxypropyl) propyl trimethoxy silicane, Triple Pressed Stearic Acid, titanic acid ester; The aluminic acid ester, one or more mixing in the zirconate.
5. high abrasion anticorrosive nano inorganic particulate Cross-linked Polyethylene Composites as claimed in claim 1, it is characterized in that: said dispersed lubricant is an ethylene bis stearamide, PE wax, montanic acid, calcium stearate, one or more mixing in the Triple Pressed Stearic Acid.
6. high abrasion anticorrosive nano inorganic particulate Cross-linked Polyethylene Composites as claimed in claim 1; It is characterized in that: said oxidation inhibitor is the composite antioxidant that phosphite ester kind antioxidant and Hinered phenols antioxidant are formed, and wherein phosphite ester kind antioxidant and Hinered phenols antioxidant are formed by weight 1:0.3～1:0.7.
7. high abrasion anticorrosive nano inorganic particulate Cross-linked Polyethylene Composites as claimed in claim 1 is characterized in that: said PE modified dose is tasteless polycthylene grafted maleic anhydride.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105829817A CN102061030B (en) | 2010-12-10 | 2010-12-10 | High-abrasion-resistant corrosion-resistant inorganic particle crosslinking polyethylene composite material and preparation method thereof |
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|---|---|---|---|
| CN2010105829817A CN102061030B (en) | 2010-12-10 | 2010-12-10 | High-abrasion-resistant corrosion-resistant inorganic particle crosslinking polyethylene composite material and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN102061030A CN102061030A (en) | 2011-05-18 |
| CN102061030B true CN102061030B (en) | 2012-06-27 |
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| CN102492213B (en) * | 2011-12-20 | 2014-11-19 | 顾丽 | Rotational molding grade cross-linked polyethylene wear-resistant composite and preparation method thereof |
| CN102731881B (en) * | 2012-03-30 | 2016-08-17 | 中国石油化工股份有限公司 | For cross-linked polyolefin composition for rotational molding and preparation method thereof |
| CN103160172B (en) * | 2013-03-29 | 2015-01-28 | 南通好的防腐装备有限公司 | Curable anticorrosion coating for teflon/polyethylene lining and coating method of curable anticorrosion coating |
| CN103642356A (en) * | 2013-12-07 | 2014-03-19 | 天津市华鑫达投资有限公司 | Crosslinked polypropylene viscoelastic composite coating and preparation method thereof |
| CN105968970A (en) * | 2016-05-27 | 2016-09-28 | 南通好的防腐装备有限公司 | High-temperature-resistant and high-adhesion crosslinked polyethylene viscoelastic composite coating and preparation method |
| CN112778596B (en) * | 2019-11-08 | 2022-06-17 | 国家能源投资集团有限责任公司 | Polyolefin composition and polyolefin composite material and preparation method thereof |
| CN112778597B (en) * | 2019-11-08 | 2022-04-19 | 国家能源投资集团有限责任公司 | Polyethylene composition, polyethylene double-layer composite material and preparation method thereof |
| CN113527787A (en) * | 2020-04-20 | 2021-10-22 | 国家能源投资集团有限责任公司 | Wear-resistant crosslinkable polyethylene composition, wear-resistant crosslinked polyethylene material and preparation method thereof |
| CN113527797A (en) * | 2020-04-20 | 2021-10-22 | 国家能源投资集团有限责任公司 | High-wear-resistance crosslinkable polyethylene composition, high-wear-resistance crosslinked polyethylene material and preparation method thereof |
| CN113527796A (en) * | 2020-04-20 | 2021-10-22 | 国家能源投资集团有限责任公司 | High-wear-resistance crosslinkable polyethylene composition, high-wear-resistance crosslinked polyethylene material and preparation method thereof |
| CN111607153A (en) * | 2020-06-30 | 2020-09-01 | 江南大学 | High-wear-resistance material of organic polymer modified crosslinked polyethylene and preparation method thereof |
| CN111607152B (en) * | 2020-06-30 | 2021-11-05 | 江南大学 | High-wear-resistance crosslinked polyethylene material and preparation method thereof |
| CN114953636B (en) * | 2022-05-13 | 2023-03-24 | 上海网讯新材料科技股份有限公司 | High-strength steel-plastic composite belt and preparation method thereof |
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