CN1176986C - Prepn of polyolefine resin specially for permeating curtain coated film - Google Patents
Prepn of polyolefine resin specially for permeating curtain coated filmInfo
- Publication number
- CN1176986C CN1176986C CNB021167206A CN02116720A CN1176986C CN 1176986 C CN1176986 C CN 1176986C CN B021167206 A CNB021167206 A CN B021167206A CN 02116720 A CN02116720 A CN 02116720A CN 1176986 C CN1176986 C CN 1176986C
- Authority
- CN
- China
- Prior art keywords
- permeating
- coated film
- polyolefine
- curtain coated
- minutes
- 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.)
- Expired - Fee Related
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- Extrusion Moulding Of Plastics Or The Like (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The present invention discloses a preparation of polyolefine resin specially used for permeating curtain coated films. Polyolefine resin (LDPE, LLDPE and copolymer PP) and superfine mineral stuffing (calcium carbonate, talcum powder, etc. with particle diameters of 3 to 10 mu m) as main raw materials are added with a Ti-Al composite coupling agent, a POE modifying agent and an OPE dispersing agent, and the mixture is further treated through coupling, dispersing, internally mixing, extruding and dicing. The special resin further treated through curtain coating and stretching to form fine and homogeneous pores between a mineral stuffing particle phrase and a polyolefine phrase in a film. After cooling and crystallization, a permeating curtain coated polyolefine film is formed. The film has the characteristics of high permeability, soft texture, high tensile strength, sanitation, favorable performance, environmental degradation after being discarded, etc. The film can be widely used in the aspects of medicinal and sanitary articles, food packing, daily service products, etc.
Description
Technical field
The present invention relates to make the novel material of plastics film, specifically a kind of preparation of polyolefine resin specially for permeating curtain coated film and method.
Background technology
Polyolefine resin specially for permeating curtain coated film is a kind of polymer novel material of external the nineties middle and later periods researchdevelopment, belongs to high-grade synthetic resins variety development and deep processing project.This resin has Air permenbility big (and water-tight) by the film of curtain coating, drawing process production, the quality softness, and the tensile strength height, sanitation performance is good, characteristics such as discarded back degraded by environment.Be widely used in medical and sanitary products packing (medicinal glued membrane, operation dress, medical gloves, sanitary napkin, baby's paper nappy), food product pack (preservative film, composite membrane, food package bag), daily goods (insulation garment interlayer, light weight raincoat) etc.
Since nineteen ninety, Japan, Korea S, Germany have researched and developed this technology in succession, and begin to realize producing in batches in the nineties middle and later periods, but its product is not ideal enough aspect ventilative homogeneity and mechanical property.According to domestic data-searching result, do not see that having with polyolefine (copolymerization PP, LLDPE, LDPE) is base-material, add calcium carbonate superfine powder and dispersion agent etc., research document, achievement and Patent data report that the ventilative cast film of making is resin dedicated.
Summary of the invention
In order to overcome the defective that exists in the present external product, the preparation and the method for polyolefine permeating curtain coated film resin of the present invention is characterized in that: base oneself upon homemade copolymerization PP, LLDPE, LDPE and carry out compositely, add 50% ultra-fine CaCO
3, adopt coupling processing, compatilizer technology, banburying expressing technique processing granulation.Make the ventilation property of rheological, dispersiveness and the cast film of resin, can both be applicable to the production permeating curtain coated film, satisfy requirements such as high-grade sanitary product, food product pack.
The technical scheme that technical solution problem of the present invention is adopted is:
Material: LDPE, LLDPE, copolymerization PP, fine mineral filler are lime carbonate, talcum powder, its particle diameter is 3～10um, Ti-Al composite coupler, POE (ethene one octene copolymer), OPE (oxidic polyethylene);
Prescription: LDPE10%, LLDPE12%, copolymerization PP5%, fine mineral filler 45～60%, Ti-Al composite coupler 1～2%, POE4～6%, OPE3～5%;
Technological process:
The fine mineral filler is placed the high speed kneader, its medium speed 1000rpm, 105 ± 2 ℃ of temperature; Mediate adding Ti-Al composite coupler after 20 minutes, mixed 15 minutes; Add the OPE dispersion agent again, mediate and add LDPE, LLDPE, copolymerization PP and POE properties-correcting agent after 10 minutes, remix placed the adding pressure type Banbury mixer after 5 minutes, and wherein temperature is controlled at 135 ± 3 ℃, banburying 10 minutes; Place twin-screw extruder to be pressed into thin slice about 3mm then, after cooling, enter in the crusher, be ground into particulate material, again through twin screw extruder, barrel temperature wherein: 165～168 ℃ in I district, 168～172 ℃ in II district, 168～172 ℃ in III district, IV160～165 ℃, 150～153 ℃ of die heads are extruded pelletizing and are formed resin dedicated.
The invention has the beneficial effects as follows and adopt coupling processing technology, increase-volume dispersion technology and banburying twin screw expressing technique, thereby improved the dispersing uniformity of high filler loading capacity fine mineral filler, improve resin dedicated mechanical property and processing characteristics, satisfied the requirement and the service requirements of permeating curtain coated film process for processing.
Description of drawings
Below in conjunction with drawings and Examples, the present invention is described in further detail:
Fig. 1 is a technological process skeleton diagram of the present invention.
The square frame annexation is by synthetic resins copolymerization PP, LLDPE, LDPE, ultra-fine CaCO among the figure
3, compatibilized modifier, dispersion agent, coupling agent material and auxiliary agent; With CaCO
3Place the high speed kneader to carry out coupling processing with coupling agent, add dispersion agent then, carry out dispersion treatment, add copolymerization PP, LLDPE, LDPE and POE again and carry out high-speed mixing, then carry out banburying, open after refining, the fragmentation, extrude, cooling, pelletizing, promptly become the resin finished product by twin screw again.
Embodiment
Embodiment 1:
With ultra-fine CaCO
3(particle diameter 3～10um) 25kg place high speed kneader (rotating speed 1000rpm, 105 ± 2 ℃ of temperature) mediate after 20 minutes, add the 0.6kgTi-Al composite coupler, mediate after 15 minutes, add the 2kgOPE dispersion agent again, mediated 10 minutes, then add LDPE5kg, LLDPE6kg, copolymerization PP2.5kg, POE properties-correcting agent PP2.5kg, mix and be placed on that (135 ± 3 ℃ of temperature) banburying was placed on the thin slice that is rolled in the twin-screw extruder about 3mm in 10 minutes in the adding pressure type Banbury mixer in 5 minutes, after cooling, enter in the crusher, be ground into the particulate material about 3 * 4mm, again through twin screw extruder (barrel temperature: 165～168 ℃ in I district, 168～172 ℃ in II district, 168～172 ℃ in III district, 160～165 ℃ in IV district, 150～153 ℃ of die heads) extrude, pelletizing forms resin dedicated.
Claims (5)
1, a kind of preparation method of polyolefine resin specially for permeating curtain coated film is characterized in that:
Material: LDPE, LLDPE, copolymerization PP, fine mineral filler are lime carbonate, talcum powder, Ti-Al composite coupler, POE, OPE;
Prescription: LDPE11.468%, LLDPE13.761%, copolymerization PP5.734%, fine mineral filler 57.339～60%, Ti-Al composite coupler 1～2%, POE4～6%, OPE3～5%;
Technological process:
The fine mineral filler is placed the high speed kneader, mediate adding Ti-Al composite coupler after 20 minutes, mixed 15 minutes; Add the OPE dispersion agent again, mediate and add LDPE, LLDPE, copolymerization PP and POE properties-correcting agent after 10 minutes, remix placed the adding pressure type Banbury mixer after 5 minutes, banburying 10 minutes; Place twin-screw extruder to be pressed into thin slice about 3mm then, after cooling, enter in the crusher, be ground into particulate material, extrude pelletizing through twin screw extruder again and form resin dedicated.
2. the preparation method of polyolefine resin specially for permeating curtain coated film according to claim 1, it is characterized in that: the fine mineral filler is lime carbonate, talcum powder, its particle diameter is 3～10um..
3. the preparation method of polyolefine resin specially for permeating curtain coated film according to claim 1, it is characterized in that: the rotating speed in the high speed kneader is 1000rpm, 105 ± 2 ℃ of temperature.
4. the preparation method of polyolefine resin specially for permeating curtain coated film according to claim 1, it is characterized in that: the temperature in the Banbury mixer is controlled at 135 ± 3 ℃.
5. the preparation method of polyolefine resin specially for permeating curtain coated film according to claim 1, it is characterized in that: twin screw extruder is barrel temperature wherein: 165～168 ℃ in I district, 168～172 ℃ in II district, 168～172 ℃ in III district, 160～165 ℃ in IV district, 150～153 ℃ of die heads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021167206A CN1176986C (en) | 2002-04-26 | 2002-04-26 | Prepn of polyolefine resin specially for permeating curtain coated film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021167206A CN1176986C (en) | 2002-04-26 | 2002-04-26 | Prepn of polyolefine resin specially for permeating curtain coated film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1453305A CN1453305A (en) | 2003-11-05 |
| CN1176986C true CN1176986C (en) | 2004-11-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021167206A Expired - Fee Related CN1176986C (en) | 2002-04-26 | 2002-04-26 | Prepn of polyolefine resin specially for permeating curtain coated film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1176986C (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE530267C3 (en) * | 2004-07-19 | 2008-05-13 | Add X Biotech Ab | Degradable packaging of a polyolefin |
| CN100362027C (en) * | 2006-03-28 | 2008-01-16 | 广州市合诚化学有限公司 | Materials dedicated for antibacterial and permeable polyolefin film and preparation method thereof |
| CN101659769B (en) * | 2009-09-17 | 2011-09-21 | 宁波山泉建材有限公司 | Waterproof air and moisture permeable microporous film, three-layer composite material and preparation method and application thereof |
| CN102372867B (en) * | 2010-08-22 | 2013-07-31 | 山东道恩高分子材料股份有限公司 | Special material for ultrathin cast film |
| CN103059369A (en) * | 2011-10-19 | 2013-04-24 | 香港格林天使科技有限公司 | Environment-friendly composite particle and preparation method thereof |
| CN102504422B (en) * | 2011-11-09 | 2016-02-10 | 新乐华宝塑料薄膜有限公司 | A kind of polyethylene film and preparation method thereof |
| CN103160007B (en) * | 2011-12-16 | 2015-10-21 | 深圳建彩科技发展有限公司 | A kind of air permeable polyolefin master batch and preparation method thereof |
| CN103739962B (en) * | 2014-01-02 | 2016-10-12 | 上海紫华企业有限公司 | Polyolefin micropore ventilated membrane and preparation method thereof |
| CN104387647B (en) * | 2014-11-10 | 2016-08-24 | 北京奥精医药科技有限公司 | A kind of medical macromolecular materials and preparation method thereof |
| CN106243501B (en) * | 2016-08-18 | 2018-12-07 | 江苏绿洲园艺绿化有限公司 | A kind of preparation method of ageing-resistant ventilative preventing atomization gardening film |
| CN106397950A (en) * | 2016-08-24 | 2017-02-15 | 宁波鸿雁包装材料有限公司 | High-toughness stretching-resistant wrapping film for packaging and preparation method thereof |
| CN108129735A (en) * | 2018-01-09 | 2018-06-08 | 天津市德利塑料制品有限公司 | A kind of ultrathin cast film and its preparation and application |
| CN110903541B (en) * | 2019-12-20 | 2022-07-15 | 福建宏科新材料科技有限公司 | Method for producing resin for polyolefin breathable film |
| CN110951150B (en) * | 2019-12-20 | 2022-07-15 | 福建宏科新材料科技有限公司 | Breathable film for disposable heating sheet and manufacturing method and application thereof |
| CN112457550A (en) * | 2020-11-12 | 2021-03-09 | 仲恺农业工程学院 | Anti-condensation air-conditioning casting LDPE (Low-Density polyethylene)/POE (polyolefin elastomer)/PBAT (Poly Butt acrylate) composite film |
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2002
- 2002-04-26 CN CNB021167206A patent/CN1176986C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1453305A (en) | 2003-11-05 |
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