CN101701084A - Improved high-pressure polyethylene transparency complex additive and preparation method thereof - Google Patents
Improved high-pressure polyethylene transparency complex additive and preparation method thereof Download PDFInfo
- Publication number
- CN101701084A CN101701084A CN200910310194A CN200910310194A CN101701084A CN 101701084 A CN101701084 A CN 101701084A CN 200910310194 A CN200910310194 A CN 200910310194A CN 200910310194 A CN200910310194 A CN 200910310194A CN 101701084 A CN101701084 A CN 101701084A
- Authority
- CN
- China
- Prior art keywords
- parts
- pressure polyethylene
- transparency
- antioxidant
- complex additive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention relates to an improved high-pressure polyethylene transparency complex additive and a preparation method thereof. The improved high-pressure polyethylene transparency complex additive comprises the following components in parts by weight: 10-20 parts of hindered phenol main antioxidant, 10-20 parts of phosphoester auxiliary antioxidant, 10-20 parts of lubricating agent, 20-40 parts of opening agent and 40-50 parts of high-pressure polyethylene. The preparation method comprises the following steps of: uniformly mixing and stirring the hindered phenol main antioxidant, the phosphoester auxiliary antioxidant, the lubricating agent, the opening agent and the high-pressure polyethylene and heating the mixture to 110-130 DEG C; adding the mixture into a double-screw rod extruding granulator, wherein the temperatures of all sections of the double-screw rod extruding granulator are respectively adjusted as follows: a first section 130-140 DEG C, a second section 170-180 DEG C, a third section 170-180 DEG C, a fourth section 170-190 DEG C and a granulator head 170-190 DEG C, and the rotating speed of a screw rod is between 70rpm and 100rpm; and starting the double-screw rod extruding granulator to prepare the improved high-pressure polyethylene transparency complex additive. By using the improved high-pressure polyethylene transparency complex additive in production, the transparency of products is improved, the adding program of the additive is simplified, powder is eliminated, clean operation is realized and dust hazards are reduced.
Description
Technical field
The present invention relates to a kind of improvement high-pressure polyethylene transparency complex additive and preparation method.
Background technology
New LDPE (film grade) (being high-pressure polyethylene) is a kind of plastic material, and it is fit to the technology of thermoplastic molding's processing.It is good to have forming process, as injection moulding, extrusion molding, blowing, rotoforming, coating, foam process, thermoforming, hot gas welding, thermo-welding etc.The LDPE main application is to make film product, as agricultural film, ground coating film, plastic sheeting for farm use, green house of vegetables film etc.; Film for packaging such as candy, vegetables, frozen product etc.; Liquid packing blown film (milk, soy sauce); Heavily packing bag, shrinkage packing film, Elastic Film, inner lining film; Building film, general industry packaging film and food bag etc.Its main products trade mark has 18D, 18D0.
But domestic present high-pressure polyethylene device is to adopt the German BASELL LUPOTECH of company tubular reactor to build, be to be that main raw material, vinyl acetate between to for plastic (VA) are that initiator, propylene and propionic aldehyde are molecular weight regulator for comonomer, with the superoxide with ethene, adopt the charging of ethene single-point, the pulse reactor of 4 injections of superoxide.Complete assembly by raw material storage, compression, polymerization, extruder grain, hot water, high-low pressure circulation gas handle, the initiator preparation is injected, VA is refining and recovery, hydraulic efficiency oil, valves test station, cooling plant, product mix unit such as homogenizing, packing and storage and form.One way maximum conversion rate 35%, product density 0.915g/cm
3, melting index 0.15-50g/10min.In this technological process, additive adopts single agent liquid state (being heated to the above temperature of fusing point) to inject and carrier agent extruding injection mode joins the extruder grain system, proportioning does not reach optimal state, cause product transparency index on the low side, and adding method complexity loaded down with trivial details (heat need be accompanied by system), start-stop car, hand-off process program complexity.
Summary of the invention
Be to reach the purpose that improves poly transparency index and simplify the operation, start with, carry out the improvement high-pressure polyethylene transparency complex additive that a large amount of development tests goes out to satisfy above condition from many-sides such as the selecting for use of single agent, proportioning, moulding.
Improvement high-pressure polyethylene transparency complex additive of the present invention, form by following component by weight:
10～20 parts of hindered phenol primary antioxidants
10～20 parts of phosphoric acid ester auxiliary antioxidants
10～20 parts of lubricants
20～40 parts of opening agent
40～50 parts of high-pressure polyethylenees
Described lubricant is select erucicamide, amine hydroxybenzene or mountain Yu acid acid amides for use any;
The opening agent is a silicon-dioxide.
Its preferred component is: 40～50 parts of 12～18 parts of hindered phenol primary antioxidants, 12～18 parts of phosphoric acid ester auxiliary antioxidants, 12～18 parts of lubricants, 25～35 parts of opening agent and high-pressure polyethylenees.
Described hindered phenol primary antioxidant is to select any in antioxidant 1076, antioxidant 1010, oxidation inhibitor 425 or the antioxidant CA for use; The phosphoric acid ester auxiliary antioxidant is to select any in oxidation inhibitor 168, oxidation inhibitor 618 or the oxidation inhibitor 626 for use; Lubricant is select erucicamide or amine hydroxybenzene for use any.
Improving high-pressure polyethylene transparency complex additive, is to be prepared from through the following steps:
A, with 10～20 parts of hindered phenol primary antioxidants, 10～20 parts of phosphoric acid ester auxiliary antioxidants, 10～20 parts of lubricants, 20～40 parts of opening agent and 40～50 parts of mixing and stirring of high-pressure polyethylene, heat to 110-130 ℃;
B, the material that a step is made join in the hopper of double-screw extruding pelletizing machine, and each zone temperatures of double-screw extruding pelletizing machine transfers to respectively and is 130～140 ℃ of sections, 170～180 ℃ of two sections, 170～180 ℃ of three sections, 170～190 ℃ of four sections, 170～190 ℃ of heads; The rotating speed of screw rod is 70～100rpm;
C, startup double-screw extruding pelletizing machine promptly make the improvement high-pressure polyethylene transparency complex additive.
Oxidation inhibitor 168, chemical name: tricresyl phosphite (2, the 4-di-tert-butyl-phenyl) ester.168 oxidation inhibitor are phosphorous acid esters processing stabilizers of a kind of hydrolysis.It is as auxiliary antioxidant, can with the peroxide reactions that produces because of autoxidation in the polymer processing, thereby stop the degraded of polymkeric substance, strengthen the performance of primary antioxidant.Auxiliary antioxidant 168 can be used for polyolefine and polyolefin copolymer, as: polyethylene (HDPE, LLDPE), polypropylene, poly-1-butylene and ethylene-vinyl acetate copolymer, it can be used for polycarbonate equally, polymeric amide, polyester, vinylbenzene homopolymerization and multipolymer, tamanori, natural or synthetic gluing resin, elastomerics such as BR, SEBS, SBS and other organic materialss.
Oxidation inhibitor 618, chemical name: pentaerythritol bis-phosphite two (stearyl alcohol) ester, English name SPEP, the outward appearance chip solid that is white in color, 50～55 ℃ at zero pour, it is an auxiliary antioxidant, is phosphate-based antioxidants, can improve the shearing function of macromolecular material, with UV light absorber and with the coordination effect is arranged.Be widely used in polyethylene, polypropylene, polyvinyl chloride, ABS resin etc.
Antioxidant 1076, chemical name: the β-positive octadecanol ester of (4-hydroxy phenyl-3,5-di-t-butyl) propionic acid, molecular formula: C
35H
620
3, be dissolved in benzene, acetone, hexanaphthene etc., be slightly soluble in methyl alcohol, insoluble in water, the heat-resisting and water-fast extractable of antioxidant 1076 is good.The outward appearance crystalline powder that is white in color, 50～55 ℃ of fusing points.Antioxidant 1076 is good Hinered phenols antioxidant, is widely used in polyethylene, polypropylene, polyoxymethylene, ABS resin, polystyrene, polyvinyl chloride alcohol, engineering plastics, synthetic rubber and the petroleum products.
Antioxidant 1010, chemical name: four { β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid } pentaerythritol ester, crystalline powder is white in color, 110～125 ℃ of fusing points, antioxidant 1010 is the high molecular weight hindered phenols kind antioxidant, is widely used in olefin resin, in polyethylene, polypropylene, urethane, polyoxymethylene, ABS resin, polyvinylacetal, synthetic rubber and petroleum products.
Oxidation inhibitor 425, chemical name: 2,2 '-methylene-bis(4-ethyl-6-t-butyl phenol), molecular formula: C
25H
36O
2, molecular weight: 368.5, the pure white crystalline powder is mainly used in and prevents natural gum, synthetical glue and synthetic resins thereof because oxygen, heat, ultraviolet ray, metallic compound are caused aging.
Antioxidant CA, chemical name 1,1,3-three (2-methyl-4-hydroxyl-5-tert-butyl-phenyl) butane, relative molecular weight 544.82,185～190 ℃ of fusing points, white crystalline powder, tasteless, odorless is mainly used in polypropylene, ABS resin, polyethylene, polyvinyl chloride etc.
Oxidation inhibitor 626, chemical name: the two diphosphites of two (2, the 4-di-tert-butyl-phenyl) tetramethylolmethane, water insoluble, dissolve in alcohol, Heat stability is good does not pollute.The outward appearance powder that is white in color, fusing point 160-175 ℃, it is an auxiliary antioxidant, is mainly used in polypropylene, polyethylene, polyvinyl chloride, ABS, nylon, PVC etc., can be used for improving colour stability.
Erucicamide, molecular formula: C
22H
43NO, molecular weight: 337.58, it is Powdered that outward appearance is, fusing point: 78～81 ℃, main slipping agent and release agent as plastics such as CPP, BOPP, LDPE, LLDPE, EVA, PVC, PVDF, PVDC, PU and metallocene PEs, dynamic and the static friction coefficient on goods (film or sheet material) surface be can significantly reduce, workability and package handling efficient improved.
Amine hydroxybenzene, molecular formula C
18H
35NO, molecular weight 281.48, outward appearance is white in color Powdered, fusing point: 72～77 ℃, amine hydroxybenzene uses it can reduce between internal friction film in the course of processing and the transfer equipment in polyethylene film and rubs, thereby increases turnout, simplifies the operation to the finished product.
Mountain Yu acid acid amides, chemical formula CH
3(CH
2)
20CONH
2, fusing point: 102～115 ℃.
Improve high-pressure polyethylene transparency complex additive, optimized the proportioning of additive, be used for producing and improved the product transparency, realize technical indicator and economic target optimum balance; Whole compoundization of single agent are injected into the extruder grain system by extrusion machine, simplify additive and add program, and the cancellation pulvis is realized the cleaningization operation, has reduced dust hazard.Being convenient to start-stop car and product switches.
Embodiment
Embodiment 1
Improvement high-pressure polyethylene transparency complex additive of the present invention is made up of following component: 40 parts of 425 10 parts of hindered phenol primary antioxidants, 626 10 parts of phosphoric acid ester auxiliary antioxidants, 10 parts of mountain Yu acid acid amides, 20 parts of silicon-dioxide and high-pressure polyethylenees by weight.
Embodiment 2
Improvement high-pressure polyethylene transparency complex additive of the present invention is made up of following component: 50 parts of 20 parts of hindered phenol primary antioxidant CA, 618 20 parts of phosphoric acid ester auxiliary antioxidants, 20 parts of amine hydroxybenzenes, 40 parts of silicon-dioxide and high-pressure polyethylenees by weight.
Embodiment 3
Improvement high-pressure polyethylene transparency complex additive of the present invention is made up of following component: 1,076 12 parts of hindered phenol primary antioxidants, 168 12 parts of phosphoric acid ester auxiliary antioxidants, 12 parts of erucicamides, 25 parts of silicon-dioxide, 40 parts of high-pressure polyethylenees by weight.
Embodiment 4
Improvement high-pressure polyethylene transparency complex additive of the present invention is made up of following component: 1,010 18 parts of hindered phenol primary antioxidants, 618 18 parts of phosphoric acid ester auxiliary antioxidants, 18 parts of amine hydroxybenzenes, 35 parts of silicon-dioxide, 50 parts of high-pressure polyethylenees by weight.
Embodiment 5
Improvement high-pressure polyethylene transparency complex additive of the present invention is made up of following component: 1,010 15 parts of hindered phenol primary antioxidants, 168 15 parts of phosphoric acid ester auxiliary antioxidants, 15 parts of erucicamides, 30 parts of silicon-dioxide, 45 parts of high-pressure polyethylenees by weight.
Preparation embodiment 1～5 described improvement high-pressure polyethylene transparency complex additive is to be prepared from through the following steps:
A, above-mentioned hindered phenol primary antioxidant, phosphoric acid ester auxiliary antioxidant, lubricant, opening agent and high-pressure polyethylene added in the high-speed mixer stir, heat to 110～130 ℃; Low melting point is melted, thus be coated on the surface of resin particle and not fusant matter stick on the resin particle, can not see the pulvis deposition and can take out;
B, the material that a step is made join in the hopper of double-screw extruding pelletizing machine, and each zone temperatures of double-screw extruding pelletizing machine transfers to respectively and is 130～140 ℃ of sections, 170～180 ℃ of two sections, 170～180 ℃ of three sections, 170～190 ℃ of four sections, 170～190 ℃ of heads; The rotating speed of screw rod is 70～100rpm;
C, will join through the material that a step makes in the hopper of double-screw extruding pelletizing machine; start the double-screw extruding pelletizing machine; material is extruded from head; enter cold rinse bank, adjust the cooling distance, material is suitably cooled off; air-cooled expelling water; send into dicing machine then, adjust crush cutting speed, promptly make the improvement high-pressure polyethylene transparency complex additive.
The additive of Application Example 1～5,18D0 product of producing and former 18D0 product performance relatively see the following form:
The result finds out from table, use composite assistant after, 18D0 product mist degree improves 33%, is reduced to 20% by original 30%, other mechanical properties are constant substantially, all in the product index claimed range.
Claims (4)
1. improvement high-pressure polyethylene transparency complex additive, form by following component by weight:
10～20 parts of hindered phenol primary antioxidants
10～20 parts of phosphoric acid ester auxiliary antioxidants
10～20 parts of lubricants
20～40 parts of opening agent
40～50 parts of high-pressure polyethylenees
Described lubricant is select erucicamide, amine hydroxybenzene or mountain Yu acid acid amides for use any;
The opening agent is a silicon-dioxide.
2. improvement high-pressure polyethylene transparency complex additive as claimed in claim 1 is characterized in that being made up of following component by weight:
12～18 parts of hindered phenol primary antioxidants
12～18 parts of phosphoric acid ester auxiliary antioxidants
12～18 parts of lubricants
25～35 parts of opening agent
40～50 parts of high-pressure polyethylenees.
3. improvement high-pressure polyethylene transparency complex additive as claimed in claim 1 or 2 is characterized in that the hindered phenol primary antioxidant is to select any in antioxidant 1076, antioxidant 1010, oxidation inhibitor 425 or the antioxidant CA for use; The phosphoric acid ester auxiliary antioxidant is to select any in oxidation inhibitor 168, oxidation inhibitor 618 or the oxidation inhibitor 626 for use; Lubricant is to select any in erucicamide or the amine hydroxybenzene for use.
4. prepare the method for wanting 1 described improvement high-pressure polyethylene transparency complex additive as right, it is characterized in that it being to be prepared from through the following steps:
A, with 10～20 parts of hindered phenol primary antioxidants, 10～20 parts of phosphoric acid ester auxiliary antioxidants, 10～20 parts of lubricants, 20～40 parts of opening agent and 40～50 parts of mixing and stirring of high-pressure polyethylene, heat to 110～130 ℃;
B, the material that a step is made join in the hopper of double-screw extruding pelletizing machine, and each zone temperatures of double-screw extruding pelletizing machine transfers to respectively and is 130～140 ℃ of sections, 170～180 ℃ of two sections, 170～180 ℃ of three sections, 170～190 ℃ of four sections, 170～190 ℃ of heads; The rotating speed of screw rod is 70～100rpm;
C, startup double-screw extruding pelletizing machine promptly make the improvement high-pressure polyethylene transparency complex additive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910310194A CN101701084A (en) | 2009-11-22 | 2009-11-22 | Improved high-pressure polyethylene transparency complex additive and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910310194A CN101701084A (en) | 2009-11-22 | 2009-11-22 | Improved high-pressure polyethylene transparency complex additive and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101701084A true CN101701084A (en) | 2010-05-05 |
Family
ID=42156013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910310194A Pending CN101701084A (en) | 2009-11-22 | 2009-11-22 | Improved high-pressure polyethylene transparency complex additive and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101701084A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102746563A (en) * | 2011-04-22 | 2012-10-24 | 中国石油天然气股份有限公司 | Preparation method for special-purpose material of LLDPE transparent shed film |
| CN103694525A (en) * | 2012-09-28 | 2014-04-02 | 中国石油天然气股份有限公司 | Composite auxiliary agent for preparing easy-opening polyethylene film special material and preparation method thereof |
| CN104788813A (en) * | 2015-03-31 | 2015-07-22 | 苏州市鼎立包装有限公司 | PP tearing film and preparation method thereof |
| CN105001480A (en) * | 2015-07-27 | 2015-10-28 | 武汉三友石化有限公司 | Complex antioxidant for polyolefin and preparing method of complex antioxidant |
| CN107286478A (en) * | 2017-07-17 | 2017-10-24 | 江苏精良高分子材料有限公司 | A kind of anti-red change smooth master batch and preparation method thereof |
| CN113185770A (en) * | 2021-05-14 | 2021-07-30 | 广东帝通新材料股份有限公司 | Special functional material for modifying linear polyethylene 7042 |
-
2009
- 2009-11-22 CN CN200910310194A patent/CN101701084A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102746563A (en) * | 2011-04-22 | 2012-10-24 | 中国石油天然气股份有限公司 | Preparation method for special-purpose material of LLDPE transparent shed film |
| CN102746563B (en) * | 2011-04-22 | 2014-06-04 | 中国石油天然气股份有限公司 | Preparation method for special-purpose material of LLDPE transparent shed film |
| CN103694525A (en) * | 2012-09-28 | 2014-04-02 | 中国石油天然气股份有限公司 | Composite auxiliary agent for preparing easy-opening polyethylene film special material and preparation method thereof |
| CN104788813A (en) * | 2015-03-31 | 2015-07-22 | 苏州市鼎立包装有限公司 | PP tearing film and preparation method thereof |
| CN105001480A (en) * | 2015-07-27 | 2015-10-28 | 武汉三友石化有限公司 | Complex antioxidant for polyolefin and preparing method of complex antioxidant |
| CN107286478A (en) * | 2017-07-17 | 2017-10-24 | 江苏精良高分子材料有限公司 | A kind of anti-red change smooth master batch and preparation method thereof |
| CN113185770A (en) * | 2021-05-14 | 2021-07-30 | 广东帝通新材料股份有限公司 | Special functional material for modifying linear polyethylene 7042 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101701084A (en) | Improved high-pressure polyethylene transparency complex additive and preparation method thereof | |
| CN102952317B (en) | A kind of Plastic-wooden composite tray and preparation method thereof | |
| US20050222310A1 (en) | Use of waxes as lubricants for filled plastics | |
| CN104220518A (en) | Resin composition containing ethylene-vinyl alcohol copolymer | |
| CN107868630B (en) | Adhesive resin with barrier function and preparation method thereof | |
| US9346930B2 (en) | Low cost process for manufacture of form-stable phase change material | |
| CN102643468A (en) | Regeneration polyethylene resin combination for sheath production and preparation method thereof | |
| CN102516666B (en) | Polypropylene-based microcellular foaming wood-plastic composite material and production method thereof | |
| CN104053715A (en) | Polyolefin compositions for film, fiber and molded articles | |
| CN102585319A (en) | Vulcanizing system of brominated butyl rubber/ polypropylene thermoplastic elastomer sealing material and preparation method for sealing material | |
| CN101701075A (en) | Linear metallocene PE modified compound additive | |
| CN102408603A (en) | Particle material for producing beer and beverage crown cap polyolefin gasket and preparation method thereof | |
| CN102250288A (en) | Preparation method of adhesive layer material for nylon/PE(polyethylene) co-extrusion lamination | |
| CN102816282B (en) | Method for restraining cross-linking side reaction in process of melt-grafting reaction | |
| CA3176575A1 (en) | Polymer extrusion process | |
| RU2733462C2 (en) | Polyolefin-based compositions, adhesives and obtained multilayer structures | |
| CN100398586C (en) | Filling agglomerate for plastic film and its preparation method | |
| CN104961949A (en) | Heat shrink film and production method thereof | |
| CN102863670B (en) | Preparation method of special coating resin composition for polyethylene | |
| CN105713410A (en) | Novel pre-dispersion master batch and preparing method thereof | |
| WO2007038808A1 (en) | Plastics composition and products thereof | |
| JPH01207334A (en) | Thickened capsule | |
| CN111100366B (en) | Polyethylene composition, preparation method thereof and film packaging product | |
| CN104788783A (en) | Thin-wall high-strength internal inlay type drip irrigation tape and high-speed production method thereof | |
| CN111349273A (en) | High-starch-filled HDPE (high-density polyethylene) film blowing special material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100505 |