CN105086068A - Water-absorbing granule for HDPE (high-density polyethylene) tubes, and preparation method and application thereof - Google Patents
Water-absorbing granule for HDPE (high-density polyethylene) tubes, and preparation method and application thereof Download PDFInfo
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- CN105086068A CN105086068A CN201510511177.2A CN201510511177A CN105086068A CN 105086068 A CN105086068 A CN 105086068A CN 201510511177 A CN201510511177 A CN 201510511177A CN 105086068 A CN105086068 A CN 105086068A
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- 229920001903 high density polyethylene Polymers 0.000 title claims abstract description 95
- 239000004700 high-density polyethylene Substances 0.000 title claims abstract description 95
- 238000002360 preparation method Methods 0.000 title claims abstract description 26
- 239000008187 granular material Substances 0.000 title abstract 6
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 20
- 239000000292 calcium oxide Substances 0.000 claims abstract description 18
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 12
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000004698 Polyethylene Substances 0.000 claims abstract description 10
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 10
- 239000007822 coupling agent Substances 0.000 claims abstract description 10
- 229920001684 low density polyethylene Polymers 0.000 claims abstract description 10
- 239000004702 low-density polyethylene Substances 0.000 claims abstract description 10
- -1 polyethylene Polymers 0.000 claims abstract description 10
- 229920000573 polyethylene Polymers 0.000 claims abstract description 10
- 150000001875 compounds Chemical class 0.000 claims description 67
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 55
- 239000002245 particle Substances 0.000 claims description 53
- 239000002994 raw material Substances 0.000 claims description 45
- 238000001125 extrusion Methods 0.000 claims description 39
- 210000001161 mammalian embryo Anatomy 0.000 claims description 32
- 238000000034 method Methods 0.000 claims description 28
- 238000003756 stirring Methods 0.000 claims description 21
- 238000010792 warming Methods 0.000 claims description 21
- 238000002156 mixing Methods 0.000 claims description 17
- 238000005453 pelletization Methods 0.000 claims description 14
- 229930000044 secondary metabolite Natural products 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 238000004804 winding Methods 0.000 claims description 12
- 238000007493 shaping process Methods 0.000 claims description 10
- 238000005520 cutting process Methods 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 4
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000001035 drying Methods 0.000 abstract description 4
- 239000004594 Masterbatch (MB) Substances 0.000 abstract 1
- 238000001311 chemical methods and process Methods 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 13
- 238000000643 oven drying Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000000047 product Substances 0.000 description 7
- 230000008030 elimination Effects 0.000 description 6
- 238000003379 elimination reaction Methods 0.000 description 6
- 229920003023 plastic Polymers 0.000 description 6
- 239000004033 plastic Substances 0.000 description 6
- 238000005485 electric heating Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000011575 calcium Substances 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000010309 melting process Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
-
- 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
-
- 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
- B29C2948/9258—Velocity
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
-
- 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
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- 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
- C08L2207/062—HDPE
-
- 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
- C08L2207/066—LDPE (radical process)
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a water-absorbing granule for HDPE (high-density polyethylene) tubes, and a preparation method and application thereof. The water-absorbing granule is prepared by extruding and granulating 120-130 parts of calcium oxide, 25-30 parts of calcium carbonate, 0.18-0.2 part of coupling agent, 1 part of polyethylene wax and 25-30 parts of low-density polyethylene by a parallel double screw extruder. The water-absorbing granule is used for preparing HDPE tubes. The HDPE tube is prepared from 100 parts of HDPE, 50-60 parts of HDPE reclaimed material, 3-5 parts of black master batch and 3-5 parts of water-absorbing granule. When the water-absorbing granule is used for preparing the HDPE tube, a chemical process is used instead of the traditional hot drying dry process to eliminate the moisture in the high-density polyethylene reclaimed material, thereby thoroughly eliminating the influence of moisture on the product performance, saving the energy consumption and lowering the labor intensity of workers.
Description
Technical field
The present invention relates to tubing production field, be specifically related to effective water suction particle of a kind of HDPE and preparation method thereof and application.
Background technology
HDPE pipe (high density polyethylene pipe) refers to that with HDPE be main raw material, adopts the real wall plastic pipe that the operation such as extruding pipe embryo, cooling and shaping, traction, cutting produces; Or through the double-wall corrugated pipe of ripple forming machinery blow molding or first shaping block processed after forcing machine extruding pipe embryo, through being wound around the winding tube be welded; Or the band embryo extruded and steel band are combined into composite steel-plastic belt, then take through being wound around the plastic-steel-wound drainage pipe etc. that is welded.Specification is DN110-DN2600mm.This kind of tubing has corrosion-resistant, quality light, simple installation, through-current capacity are large, the life-span is long advantages such as (50 years), the tubing that alternative high energy consumption material (cement, cast iron, pottery etc.) makes, genus environment-friendly product.
HDPE pipe is general to be applied in municipal water supply and sewage work, sewage work and other major construction projects, and it mainly has higher requirement to the tensile strength of ring stiffness and seam in product performance.In order to reduce production cost, improve the competitiveness of product in market, manufacturer adopts a certain proportion of HDPE reworked material on HDPE composition of raw materials, and HDPE reworked material surface or inside particles contain certain moisture, many difficulties are caused to production technique, if will not eliminate, water wave or depression can be formed in tube surfaces, not only affect outward appearance, also have considerable influence to the tensile property of product.
In order to eliminate the impact of HDPE reworked material contained humidity on HDPE pipe production technique and quality, the method for traditional elimination moisture adopts the method that electric hot-air is dried to realize.There is following shortcoming in this method: 1. energy consumption is large, consume a large amount of electric energy; 2. yield poorly, because certain hour is wanted in the oven dry of moisture, cannot drying rate be improved and affect output; 3. cannot eliminate the moisture of HDPE regenerated particle inside and affect the physical and mechanical property of product; 4. the labour intensity of workman increases large.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, there is provided effective water suction particle of a kind of HDPE and preparation method thereof and application, described water suction particle is managed for the preparation of HDPE, utilizes the moisture that chemical method elimination HDPE reworked material brings, thus attenuating energy consumption, reduce labor strength
For achieving the above object, the present invention adopts following technical scheme:
The effective water suction particle of a kind of HDPE, described water suction particle is prepared from by the raw material of following parts by weight:
Further, described water suction particle is prepared from by the raw material of following parts by weight:
The preparation method of the effective water suction particle of described HDPE, comprises the following steps:
1) by weight, raw material is taken:
2) be fully mixed into one-level compound by calcium oxide and calcium carbonate input high-speed mixer, when the stirring of one-level compound is warming up to 85-90 DEG C, add coupling agent and be mixed into secondary compound; When the stirring of secondary compound is warming up to 95-100 DEG C, add polyethylene wax and be mixed into three grades of compounds, when three grades of compounds stirrings are warming up to 120-125 DEG C, three grades of compounds are transferred in cold mixer, and add Low Density Polyethylene and be mixed into level Four compound, when level Four compound in cold mixer is cooled to normal temperature, level Four compound is released for subsequent use;
3) above-mentioned level Four compound is dropped into parallel double-screw extruding granulator extruding pelletization, obtain the particle that absorbs water, extruding pelletization process, setting machine barrel I district temperature 115-120 DEG C, machine barrel II district temperature 125-130 DEG C, machine barrel III district temperature 135-140 DEG C, machine barrel IV district temperature 145-150 DEG C, machine barrel V district temperature 155-160 DEG C, machine barrel VI district temperature 165-170 DEG C, machine barrel VII district temperature 175-180 DEG C, machine barrel VIII district temperature 200-210 DEG C, machine barrel Ⅸ district temperature 185-190 DEG C, machine barrel Ⅹ district temperature 150-160 DEG C, engine speed 900-1000r/min, feeding rotating speed 800-900r/min, blank rotating speed 1200-1300r/min.
Removed after powder through vibratory screening apparatus after described water suction particle is cooled by air channel and got final product weighing and bagging, and because water suction particle easily absorbs water, should vacuum sealed package be adopted, and deposit for subsequent use in the shady and cool place of drying.
First the present invention carries out activation treatment and granulation to CaO, obtain the particle that absorbs water, follow-uply be applied to preparation HDPE pipe again, be so more conducive to fully mixing and effectively combining of CaO and plastic raw materials, do not affect again the object of the mechanical property of tubing with the moisture reached in elimination raw material.
Another object of the present invention is to provide the application of the effective water suction particle of a kind of HDPE, is specifically managed for the preparation of HDPE by described water suction particle, and described HDPE pipe is prepared from by the raw material of following parts by weight:
Preferably, described HDPE pipe is prepared from by the raw material of following parts by weight:
The preparation method of described HDPE pipe is: first take raw material by weight, and use single screw extrusion machine extrusion moulding by after raw material mixing, obtaining pipe embryo, is the solid-wall pipe of all size through calibration sleeve cooling and shaping, then forms high density polyethylene(HDPE) solid wall pipe through traction cutting;
Or by raw material mixing after use single screw extrusion machine extrusion moulding, obtain pipe embryo, pipe embryo extrude after through corrugation forming machine cooling and shaping be double-wall corrugated pipe;
Or use single screw extrusion machine extrusion moulding by after raw material mixing, obtain type embryo, type embryo forms high-density polytene winding pipe through being wound around joint welding again;
Or by raw material mixing after use single screw extrusion machine extrusion moulding, obtain be with embryo, band embryo extrude after and steel band Compound cooling be fixed to plastic-steel composite band, then through winding joint welding form high density polyethylene(HDPE) plastic-steel spirally-wound pipe.
In preparation process, the temperature, head temperature, single screw extrusion machine engine speed, pulling speed, Cutting Length etc. in each district of extruder cylinder of single screw extruder are according to needing the kind of the HDPE pipe produced and concrete model setting.
HDPE of the present invention manages plastic raw materials (HDPE, HDPE reworked material, black agglomerate) and water suction particle in process of production and extrudes through forcing machine, melt under the effect of the heat of machine barrel and the shearing force of screw rod, the moisture in melting process in CaO and material reacts and generates Ca (HO)
2and be scattered in band embryo equably, thus eliminate the impact of moisture on product performance.
The present invention adopts above technical scheme, for the deficiency of existing HDPE pipe production technique, moisture is eliminated by chemical method, select a kind ofly to produce the inolrganic chemicals calcium oxide of intense reaction as a kind of weighting material with moisture, in plastic extrusion melting process, be distributed to equably in plastic strap after generating calcium hydroxide, reaction equation with water molecules generation intense reaction: CaO+H
2o=Ca (OH)
2, thus completely eliminate the impact of moisture on product performance, save energy consumption, reduce the labour intensity of workman.Application the present invention absorb water particle produce HDPE pipe, its outward appearance and physical and mechanical property be all better than traditional oven drying method produce HDPE pipe;
Embodiment
Below in conjunction with embodiment, the present invention is further detailed explanation:
The effective water suction particle of a kind of HDPE, described water suction particle is prepared from by the raw material of following parts by weight:
The preparation method of the effective water suction particle of described HDPE, comprises the following steps:
1) by weight, raw material is taken:
2) be fully mixed into one-level compound by calcium oxide and calcium carbonate input high-speed mixer, when the stirring of one-level compound is warming up to 85-90 DEG C, add coupling agent and be mixed into secondary compound; When the stirring of secondary compound is warming up to 95-100 DEG C, add polyethylene wax and be mixed into three grades of compounds, when three grades of compounds stirrings are warming up to 120-125 DEG C, three grades of compounds are transferred in cold mixer, and add Low Density Polyethylene and be mixed into level Four compound, when level Four compound in cold mixer is cooled to normal temperature, level Four compound is released for subsequent use;
3) above-mentioned level Four compound is dropped into parallel double-screw extruding granulator extruding pelletization, obtain the particle that absorbs water, extruding pelletization process, setting machine barrel I district temperature 115-120 DEG C, machine barrel II district temperature 125-130 DEG C, machine barrel III district temperature 135-140 DEG C, machine barrel IV district temperature 145-150 DEG C, machine barrel V district temperature 155-160 DEG C, machine barrel VI district temperature 165-170 DEG C, machine barrel VII district temperature 175-180 DEG C, machine barrel VIII district temperature 200-210 DEG C, machine barrel Ⅸ district temperature 185-190 DEG C, machine barrel Ⅹ district temperature 150-160 DEG C, engine speed 900-1000r/min, feeding rotating speed 800-900r/min, blank rotating speed 1200-1300r/min.
The application of the effective water suction particle of HDPE of the present invention, described water suction particle is managed for the preparation of HDPE, and described HDPE pipe is prepared from by the raw material of following parts by weight:
The preparation method of described HDPE pipe is: first take raw material by weight, and use single screw extrusion machine extrusion moulding by after raw material mixing, obtaining pipe embryo, is the solid-wall pipe of all size through calibration sleeve cooling and shaping, then forms high density polyethylene(HDPE) solid wall pipe through traction cutting;
Or by raw material mixing after use single screw extrusion machine extrusion moulding, obtain pipe embryo, pipe embryo extrude after through corrugation forming machine cooling and shaping be double-wall corrugated pipe;
Or use single screw extrusion machine extrusion moulding by after raw material mixing, obtain type embryo, type embryo forms high-density polytene winding pipe through being wound around joint welding again;
Or by raw material mixing after use single screw extrusion machine extrusion moulding, obtain be with embryo, band embryo extrude after and steel band Compound cooling be fixed to plastic-steel composite band, then through winding joint welding form high density polyethylene(HDPE) plastic-steel spirally-wound pipe.
In preparation process, the temperature, head temperature, single screw extrusion machine engine speed, pulling speed, Cutting Length etc. in each district of extruder cylinder of single screw extruder are according to needing the kind of the HDPE pipe produced and concrete model setting.
Embodiment 1
A preparation method for the effective water suction particle of HDPE, comprises the following steps:
1) by weight, following raw material is taken:
2) be fully mixed into one-level compound by calcium oxide and calcium carbonate input high-speed mixer, when the stirring of one-level compound is warming up to 90 DEG C, add coupling agent and be mixed into secondary compound; When the stirring of secondary compound is warming up to 100 DEG C, add polyethylene wax and be mixed into three grades of compounds, when three grades of compounds stirrings are warming up to 120 DEG C, three grades of compounds are transferred in cold mixer, and add Low Density Polyethylene and be mixed into level Four compound, when level Four compound in cold mixer is cooled to normal temperature, level Four compound is released for subsequent use;
3) above-mentioned level Four compound is dropped into parallel double-screw extruding granulator extruding pelletization; obtain the particle that absorbs water; extruding pelletization process; setting machine barrel I district temperature 120 DEG C; machine barrel II district temperature 130 DEG C; machine barrel III district temperature 140 DEG C, machine barrel IV district temperature 150 DEG C, machine barrel V district temperature 160 DEG C; machine barrel VI district temperature 165 DEG C; machine barrel VII district temperature 180 DEG C, machine barrel VIII district temperature 210 DEG C, machine barrel Ⅸ district temperature 190 DEG C; machine barrel Ⅹ district temperature 160 DEG C; engine speed 1000r/min, feeding rotating speed 800r/min, blank rotating speed 1200r/min.
4) water suction particle vacuum sealed package above-mentioned steps obtained, deposits in dry shady and cool place.
Embodiment 2
The water suction particle of Application Example 1 prepares HDPE pipe, specifically comprises the following steps:
1) first following raw material is taken by weight,
2) use single screw extrusion machine extrusion moulding by after above-mentioned raw materials mixing, obtain pipe embryo, through the solid wall pipe of calibration sleeve cooling and shaping all size, then form high density polyethylene pipe through cutting;
In preparation process, extruder cylinder of single screw extruder I district temperature 150 DEG C-160 DEG C, machine barrel II district temperature 160 DEG C-170 DEG C, machine barrel III district temperature 170 DEG C-180 DEG C, machine barrel IV district temperature 190 DEG C-200 DEG C, machine barrel V district temperature 180 DEG C-190 DEG C, machine barrel VI district temperature 175 DEG C-185 DEG C, single screw extrusion machine engine speed 1250r/min, pulling speed 900r/min.
The HDPE tube performance testing Data Comparison that the HDPE pipe that the present embodiment adopts water suction particle to produce and traditional electric heating oven drying method (control group) are produced is as shown in table 1.Result shows, the tubing that the present invention produces, and its elongation at break and oxidation induction time index are all better than the tubing that traditional oven drying method is produced.
Table 1
| Test index | Testing method | Control group | Embodiment 2 |
| 20 DEG C of hydrostatic strengths (100h) | GB/T 6111 | Do not break, non-leakage | Do not break, non-leakage |
| Elongation at break % | GB/T8804.2 | 358 | 435 |
| Oxidation induction time 200 DEG C of min | GB/T 17391 | 25 | 26 |
Embodiment 3
A preparation method for the effective water suction particle of HDPE, comprises the following steps:
1) by weight, following raw material is taken:
2) be fully mixed into one-level compound by calcium oxide and calcium carbonate input high-speed mixer, when the stirring of one-level compound is warming up to 85 DEG C, add coupling agent and be mixed into secondary compound; When the stirring of secondary compound is warming up to 95 DEG C, add polyethylene wax and be mixed into three grades of compounds, when three grades of compounds stirrings are warming up to 125 DEG C, three grades of compounds are transferred in cold mixer, and add Low Density Polyethylene and be mixed into level Four compound, when level Four compound in cold mixer is cooled to normal temperature, level Four compound is released for subsequent use;
3) above-mentioned level Four compound is dropped into parallel double-screw extruding granulator extruding pelletization; obtain the particle that absorbs water; extruding pelletization process; setting machine barrel I district temperature 115 DEG C; machine barrel II district temperature 125 DEG C; machine barrel III district temperature 135 DEG C, machine barrel IV district temperature 145 DEG C, machine barrel V district temperature 155 DEG C; machine barrel VI district temperature 165 DEG C; machine barrel VII district temperature 175 DEG C, machine barrel VIII district temperature 200 DEG C, machine barrel Ⅸ district temperature 185 DEG C; machine barrel Ⅹ district temperature 150 DEG C; engine speed 900r/min, feeding rotating speed 900r/min, blank rotating speed 1300r/min.
4) water suction particle vacuum sealed package above-mentioned steps obtained, deposits in dry shady and cool place.
Embodiment 4
The water suction particle of Application Example 3 prepares HDPE double-wall corrugated pipe, specifically comprises the following steps:
1) first following raw material is taken by weight,
2) by above-mentioned raw materials mixing after use single screw extrusion machine extrusion moulding, obtain pipe embryo, pipe embryo extrude after through corrugation forming machine cooling and shaping be double-wall corrugated pipe;
In preparation process, extruder cylinder of single screw extruder I district temperature 145 DEG C-165 DEG C, machine barrel II district temperature 155 DEG C-175 DEG C, machine barrel III district temperature 165 DEG C-195 DEG C, machine barrel IV district temperature 185 DEG C-225 DEG C, machine barrel V district temperature 175 DEG C-235 DEG C, head district temperature 170 DEG C 185 DEG C, single screw extrusion machine engine speed 1150r/min, pulling speed 800r/min.
The HDPE double-wall corrugated pipe that the present embodiment adopts CaO filling elimination moisture method to produce and the HDPE double-wall corrugated pipe performance test data that traditional electric heating oven drying method (control group) is produced contrast as shown in table 2.Result shows, the tubing that the present invention produces, and its ring stiffness and creep rate index are all better than the tubing that traditional oven drying method is produced.
Table 2
| Test index | Testing method | Control group | Embodiment 4 |
| Ring stiffness (KN/M 2) | GB/T 9647 | 8.0 | 8.6 |
| Shock strength (TIR) | GB/T14152-2001 | Crack-free | Crack-free |
| Ring is flexible | GB/T 9647 | Qualified | Qualified |
| Oven test | GB/T6671-2001 | Qualified | Qualified |
| Creep rate | GB/T18042 | 1.58 | 1.82 |
Embodiment 5
A preparation method for the effective water suction particle of HDPE, comprises the following steps:
1) by weight, following raw material is taken:
2) be fully mixed into one-level compound by calcium oxide and calcium carbonate input high-speed mixer, when the stirring of one-level compound is warming up to 90 DEG C, add coupling agent and be mixed into secondary compound; When the stirring of secondary compound is warming up to 95 DEG C, add polyethylene wax and be mixed into three grades of compounds, when three grades of compounds stirrings are warming up to 120 DEG C, three grades of compounds are transferred in cold mixer, and add Low Density Polyethylene and be mixed into level Four compound, when level Four compound in cold mixer is cooled to normal temperature, level Four compound is released for subsequent use;
3) above-mentioned level Four compound is dropped into parallel double-screw extruding granulator extruding pelletization; obtain the particle that absorbs water; extruding pelletization process; setting machine barrel I district temperature 120 DEG C; machine barrel II district temperature 130 DEG C; machine barrel III district temperature 140 DEG C, machine barrel IV district temperature 150 DEG C, machine barrel V district temperature 160 DEG C; machine barrel VI district temperature 170 DEG C; machine barrel VII district temperature 180 DEG C, machine barrel VIII district temperature 210 DEG C, machine barrel Ⅸ district temperature 190 DEG C; machine barrel Ⅹ district temperature 160 DEG C; engine speed 950r/min, feeding rotating speed 850r/min, blank rotating speed 1250r/min.
4) water suction particle vacuum sealed package above-mentioned steps obtained, deposits in dry shady and cool place.
Embodiment 6
The water suction particle of Application Example 5 prepares HDPE winding tube, specifically comprises the following steps:
1) first following raw material is taken by weight,
2) use single screw extrusion machine extrusion moulding by after above-mentioned raw materials mixing, obtain pipe embryo, pipe embryo takes through being wound around the high-density polytene winding pipe that is welded again;
In preparation process, extruder cylinder of single screw extruder I district temperature 145 DEG C-155 DEG C, machine barrel II district temperature 155 DEG C-175 DEG C, machine barrel III district temperature 170 DEG C-195 DEG C, machine barrel IV district temperature 185 DEG C 230 DEG C, machine barrel V district temperature 195 DEG C-225 DEG C, head district temperature 170 DEG C-190 DEG C, single screw extrusion machine engine speed 1000r/min, pulling speed 650r/min.
The HDPE winding tube that the present embodiment adopts CaO filling elimination moisture method to produce and the HDPE winding tube performance test data that traditional electric heating oven drying method (control group) is produced contrast as shown in table 3.Result shows, the tubing that the present invention produces, and its ring stiffness and creep rate index are all better than the tubing that traditional oven drying method is produced.
Table 3
| Test index | Testing method | Control group | Embodiment 6 |
| Ring stiffness (KN/M 2) | GB/T 9647 | 8.0 | 8.3 |
| Shock strength (TIR) | GB/T14152-2001 | Crack-free | Crack-free |
| Ring is flexible | GB/T 9647 | Qualified | Qualified |
| Oven test | GB/T6671-2001 | Qualified | Qualified |
| Creep rate | GB/T18042 | 3.56 | 3.42 |
| Longitudinal welds | GB/T6671-2001 | 2.8 | 2.6 |
Embodiment 7
A preparation method for the effective water suction particle of HDPE, comprises the following steps:
1) by weight, following raw material is taken:
2) be fully mixed into one-level compound by calcium oxide and calcium carbonate input high-speed mixer, when the stirring of one-level compound is warming up to 90 DEG C, add coupling agent and be mixed into secondary compound; When the stirring of secondary compound is warming up to 100 DEG C, add polyethylene wax and be mixed into three grades of compounds, when three grades of compounds stirrings are warming up to 120 DEG C, three grades of compounds are transferred in cold mixer, and add Low Density Polyethylene and be mixed into level Four compound, when level Four compound in cold mixer is cooled to normal temperature, level Four compound is released for subsequent use;
3) above-mentioned level Four compound is dropped into parallel double-screw extruding granulator extruding pelletization; obtain the particle that absorbs water; extruding pelletization process; setting machine barrel I district temperature 120 DEG C; machine barrel II district temperature 130 DEG C; machine barrel III district temperature 140 DEG C, machine barrel IV district temperature 150 DEG C, machine barrel V district temperature 160 DEG C; machine barrel VI district temperature 165 DEG C; machine barrel VII district temperature 180 DEG C, machine barrel VIII district temperature 200 DEG C, machine barrel Ⅸ district temperature 190 DEG C; machine barrel Ⅹ district temperature 60 C; engine speed 1000r/min, feeding rotating speed 800r/min, blank rotating speed 1200r/min.
4) water suction particle vacuum sealed package above-mentioned steps obtained, deposits in dry shady and cool place.
Embodiment 8
The water suction particle of Application Example 7 prepares HDPE plastic-steel-wound drainage pipe, specifically comprises the following steps:
1) first following raw material is taken by weight,
2) by above-mentioned raw materials mixing after use single screw extrusion machine extrusion moulding, obtain be with embryo, band embryo extrude after and steel band Compound cooling be fixed to plastic-steel composite band, then through winding take the high density polyethylene pipe that is welded;
In preparation process, extruder cylinder of single screw extruder I district temperature 150 DEG C-160 DEG C, machine barrel II district temperature 160 DEG C-180 DEG C, machine barrel III district temperature 170 DEG C-200 DEG C, machine barrel IV district temperature 190 DEG C-230 DEG C, machine barrel V district temperature 180 DEG C-220 DEG C, head district temperature 170 DEG C-190 DEG C, single screw extrusion machine engine speed 1000r/min, pulling speed 800r/min.
It is as shown in table 4 that the HDPE that the present embodiment adopts CaO to fill the production of elimination moisture method manages the HDPE tube performance testing Data Comparison produced with traditional electric heating oven drying method (control group).Result shows, the tubing that the present invention produces, and its ring stiffness and creep rate index are all better than the tubing that traditional oven drying method is produced.
Table 4
| Test index | Testing method | Control group | Embodiment 8 |
| Ring stiffness (KN/M 2) | GB/T 9647 | 8.1 | 8.3 |
| Tensile strength/the N of tubing laminated wall | GB/T8804.3 | 1050 | 1105 |
| Ring is flexible | GB/T 9647 | Qualified | Qualified |
| Oven test | GB/T6671-2001 | Qualified | Qualified |
| Creep rate | GB/T18042 | 1.54 | 1.81 |
Claims (6)
1. the effective water suction particle of HDPE, is characterized in that: described water suction particle is prepared from by the raw material of following parts by weight:
Calcium oxide 120-130 part;
Calcium carbonate 25-30 part;
Coupling agent 0.18-0.2 part;
Polyethylene wax 1 part;
Low Density Polyethylene 25-30 part.
2. the effective water suction particle of a kind of HDPE according to claim 1, is characterized in that: described water suction particle is prepared from by the raw material of following parts by weight:
125 parts, calcium oxide;
25 parts, calcium carbonate;
Coupling agent 0.2 part;
Polyethylene wax 1 part;
Low Density Polyethylene 25 parts.
3. the preparation method of the effective water suction particle of a kind of HDPE as claimed in claim 1, is characterized in that: it comprises the following steps:
1) by weight, raw material is taken:
2) be fully mixed into one-level compound by calcium oxide and calcium carbonate input high-speed mixer, when the stirring of one-level compound is warming up to 85-90 DEG C, add coupling agent and be mixed into secondary compound; When the stirring of secondary compound is warming up to 95-100 DEG C, add polyethylene wax and be mixed into three grades of compounds, when three grades of compounds stirrings are warming up to 120-125 DEG C, three grades of compounds are transferred in cold mixer, and add Low Density Polyethylene and be mixed into level Four compound, when level Four compound in cold mixer is cooled to normal temperature, level Four compound is released for subsequent use;
3) above-mentioned level Four compound is dropped into parallel double-screw extruding granulator extruding pelletization, obtain the particle that absorbs water, extruding pelletization process, setting machine barrel I district temperature 115-120 DEG C, machine barrel II district temperature 125-130 DEG C, machine barrel III district temperature 135-140 DEG C, machine barrel IV district temperature 145-150 DEG C, machine barrel V district temperature 155-160 DEG C, machine barrel VI district temperature 165-170 DEG C, machine barrel VII district temperature 175-180 DEG C, machine barrel VIII district temperature 200-210 DEG C, machine barrel Ⅸ district temperature 185-190 DEG C, machine barrel Ⅹ district temperature 150-160 DEG C, engine speed 900-1000r/min, feeding rotating speed 800-900r/min, blank rotating speed 1200-1300r/min.
4. the application of the effective water suction particle of HDPE as claimed in claim 1, it is characterized in that: described water suction particle is managed for the preparation of HDPE, described HDPE pipe is prepared from by the raw material of following parts by weight:
High density polyethylene(HDPE) 100 parts;
High density polyethylene(HDPE) reworked material 50-60 part;
Black agglomerate 3-5 part;
Water suction particle 3-5 part.
5. the application of the effective water suction particle of HDPE according to claim 4, is characterized in that: described HDPE pipe is prepared from by the raw material of following parts by weight:
High density polyethylene(HDPE) 100 parts;
High density polyethylene(HDPE) reworked material 50 parts;
Black agglomerate 3 parts;
Water suction 3 parts, particle.
6. the application of the effective water suction particle of HDPE according to claim 4, it is characterized in that: the preparation method of described HDPE pipe is: first take raw material by weight, and use single screw extrusion machine extrusion moulding by after raw material mixing, obtain pipe embryo, be the solid-wall pipe of all size through calibration sleeve cooling and shaping, then form high density polyethylene(HDPE) solid wall pipe through traction cutting;
Or by raw material mixing after use single screw extrusion machine extrusion moulding, obtain pipe embryo, pipe embryo extrude after through corrugation forming machine cooling and shaping be double-wall corrugated pipe;
Or use single screw extrusion machine extrusion moulding by after raw material mixing, obtain type embryo, type embryo forms high-density polytene winding pipe through being wound around joint welding again;
Or by raw material mixing after use single screw extrusion machine extrusion moulding, obtain be with embryo, band embryo extrude after and steel band Compound cooling be fixed to plastic-steel composite band, then through winding joint welding form high density polyethylene(HDPE) plastic-steel spirally-wound pipe.
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| CN108329576A (en) * | 2017-01-19 | 2018-07-27 | 合肥杰事杰新材料股份有限公司 | A kind of moisture-proof master batch and preparation method thereof for injection moulding regrinding-material |
| CN107216514A (en) * | 2017-07-17 | 2017-09-29 | 山西兰花华明纳米材料股份有限公司 | A kind of nano-calcium carbonate polyolefin master batch and preparation method thereof |
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