CN102731995B - Method for preparing puncture-resistant nylon composite film - Google Patents
Method for preparing puncture-resistant nylon composite film Download PDFInfo
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- CN102731995B CN102731995B CN201210247412.6A CN201210247412A CN102731995B CN 102731995 B CN102731995 B CN 102731995B CN 201210247412 A CN201210247412 A CN 201210247412A CN 102731995 B CN102731995 B CN 102731995B
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Abstract
The invention relates to a method for preparing a puncture-resistant nylon composite film, belonging to the field of polymer material processing. The method comprises the following steps: adding 1-5% by weight of styrene polymer and 0.5-1.5% by weight of silicone oil into nylon resin, pouring the materials into a high-speed stirrer, mixing fully and uniformly, adding the mixture into a nylon-layer plastic extruder of multi-layer co-extruding film-blowing equipment, extruding and blowing the film by the nylon-layer plastic extruder and the other-layer plastic extruder at the same time, cooling and rolling to obtain the needed puncture-resistant nylon composite film. The nylon composite film prepared by adopting the method has high puncture resistance, can no be damaged on edges and corners and still has the strong functions of blocking oxygen, water and water vapor after being stretched in vacuum and is a good edge and corner product packaging material.
Description
Technical field: the invention belongs to field of high polymer material processing, relate to a kind of preparation method of puncture resistance nylon laminated film, the preparation method who particularly produces multilayer copolymerized compound membrane with styrenic polymer elastomerics and nylon blending.
Background technology: in recent years, the functional film wrapping material of Devoting Major Efforts To Developing high added value have become the development trend of countries in the world Plastic Packaging Materials.Barrier film is the kind that in functional film, importance is maximum, application surface is the widest, application quantity is maximum.Be accompanied by popularization, the application of barrier film, in order to give full play to the advantage of barrier film wrapping material, many distinctive packing techniques that have have also been developed both at home and abroad, such as vacuum packaging, oxygen scavenging packaging, nitrogen-filled packaging, sterile packed, modified atmosphere packaging, boiling packing etc.The successful Application of barrier film and specific packing technique, no matter extending commodity shelf-lives or reducing the loss of commodity and widen all many-sides such as selling market, has all brought into play great effect.In production practice, show more and more significantly economic benefit and social benefit, application is more and more, the packing cutting meat as freezing, the vacuum packaging of meat-based food, the packing of ham sausage, the packing of the packing of the packing of grain, medicine and healthcare products and military products, electronic product and agricultural chemicals etc., the development and research of novel barrier film is more and more paid attention to by vast plastic flexible package circle.
Multi-layer co-extruded film can overcome single-material shortcoming by various single-material combination of advantages together, obtains the film of excellent performance.Wherein nylon/polyethylene multilayer coex composite membranes has become a kind of new packaging material with fastest developing speed in the Plastic Packaging Materials of countries in the world, this laminated film is due to its resistance oxygen having, the function of steam blocks water, at meat-based food, grain and food, the packaging fields such as electronic product are widely applied.And due to the feature of environmental protection of this production technique, the production of this class laminated film in recent years has also obtained development faster in China.
Multi-layer co-extruded technology directly adopts the above plastic pellets of three kinds or three kinds as raw material, by the forcing machines of several, make respectively after every kind of plastics fusion plastification, feed in a secondary mouthful mould simultaneously and (or pass through divider, after converging, the plastics that each forcing machine is supplied with supply entrance mould), at annular head internal exchange, close film extrusion base, through blowing, cooling and shaping and make multi-layer co-extruded laminated film.
Along with social progress, commodity have also proposed more and more higher requirement to packing, many have the commodity of corner angle as pig's feet, beefsteak, chicken goose, and electric PC board, by vacuumizing packing, in the process of packing, breakage is often caused because nylon layer is stretched in common coextrusion nylon film edges and corners, and has affected the barrier property of packing.Therefore the packing of commodity, except requiring the resistance oxygen of packaging film, blocks water outside steam function, and also requiring manyly has the commodity of corner angle to vacuumize after packing, and the angular edge place packaging film of packing is not damaged.This just requires coex composite membranes having resistance oxygen, outside the function of the steam that blocks water, also will have well resistance to perverse wearing property.
Summary of the invention: the preparation method who the object of the invention is to propose a kind of puncture resistance nylon laminated film.
The present invention be using styrenic polymer as a kind of Material Addition of resistance to perverse wearing property in nylon resin, thereby make the nylon co-extrusion that pierces through patience, go out laminated film.
The present invention is achieved like this: styrenic polymer is added in nylon resin by the silicone oil of the weight percent 1-5% of nylon resin and weight percent 0.51.5%, pour homogenizer into, after fully mixing, be added in the nylon layer plastics extruder of multi-layer co-extruded film blowing device, extrude blown film with bonding resin layer plastics extruder and the polyethylene layer plastics extruder while fusion plastification of multi-layer co-extruded film blowing device, cooling, rolling, makes required puncture resistance nylon laminated film.
Usually, styrenic polymer of the present invention comprises SEBS, SEP and SBS.
The multi-layer co-extruded film blowing device that the present invention adopts, is generally three layers or three layers of above multi-layer co-extruded equipment as the making equipment of film.
In preparation method of the present invention, silicone oil is as coupling agent.
The present invention adopts cold process production technique in this field known lower blowing water cold process production technique or blowing up conventionally.
Embodiment: the present invention is described in detail below in conjunction with embodiment
Example 1: be added in nylon resin after styrenic polymer SEBS is weighed by the silicone oil of the per-cent of nylon resin weight 1.5% and weight percent 0.5%, pour homogenizer into, after fully mixing, material after mixing is added in the nylon layer plastics extruder of multi-layer co-extruded film blowing device, each section of temperature of this plastics extruder is at 220 ℃-250 ℃, extrude with bonding resin layer plastics extruder and the polyethylene layer plastics extruder while fusion plastification of multi-layer co-extruded film blowing device, blown film, thus required puncture resistance laminated film obtained.
Example 2: be added in nylon resin after styrenic polymer SEBS is weighed by the silicone oil of the per-cent of nylon resin weight 5% and weight percent 1.6%, pour homogenizer into, after fully mixing, material after mixing is added in the nylon layer plastics extruder of multi-layer co-extruded film blowing device, each section of temperature of this plastics extruder is at 220 ℃-250 ℃, extrude with bonding resin layer plastics extruder and the polyethylene layer plastics extruder while fusion plastification of multi-layer co-extruded film blowing device, blown film, thus required puncture resistance laminated film obtained.
Example 3: be added in nylon resin after styrenic polymer SBS is weighed by the silicone oil of the per-cent of nylon resin weight 1.5% and weight percent 0.5%, pour homogenizer into, after fully mixing, material after mixing is added in the forcing machine of nylon layer of multi-layer co-extruded film blowing device, each section of temperature of forcing machine is at 220 ℃-250 ℃, extrude with bonding resin layer plastics extruder and the polyethylene layer plastics extruder while fusion plastification of multi-layer co-extruded film blowing device, blown film, thus required puncture resistance laminated film obtained.
Example 4: be added in nylon resin after styrenic polymer SBS is weighed by the silicone oil of the per-cent of nylon resin weight 5% and weight percent 1.6%, pour homogenizer into, after fully mixing, material after mixing is added in the nylon layer plastics extruder of multi-layer co-extruded film blowing device, each section of temperature of forcing machine is at 220 ℃-250 ℃, extrude with bonding resin layer plastics extruder and the polyethylene layer plastics extruder while fusion plastification of multi-layer co-extruded film blowing device, blown film, thus required puncture resistance laminated film obtained.
Comparative example: the nylon resin that does not add any material is directly added in the nylon layer plastics extruder of multi-layer co-extruded film blowing device, each section of temperature of forcing machine is at 220 ℃-250 ℃, extrude with bonding resin layer plastics extruder and the polyethylene layer plastics extruder while fusion plastification of multi-layer co-extruded film blowing device, blown film, thus required laminated film obtained.
Experimental result data contrast
Note: 1. anti-puncture performance is tested by the regulation of BB/T0041-2007 appendix A
2. this experiment oxygen transit dose is tested by the regulation of GB/T1038-2000;
3. this experiment water vapor transmission rate (WVTR) is tested by the regulation of GB/T1037-1988. and test conditions is 38 ℃ ± 0.6 ℃ of temperature, relative humidity 90% ± 2%.
From above embodiment and comparative example, can find out, the inventive method, prepared nylon laminated film has very high cutting resistance, vacuumizing the rear edges and corners that stretch without breakage, thereby still can possess higher resistance oxygen, the steam function that blocks water, blocks water, for a kind of good wrapping material of providing of corner angle commodity are provided.
Claims (5)
1. the preparation method of a puncture resistance nylon laminated film, it is characterized in that styrenic polymer to be added in nylon resin by the silicone oil of the per-cent 1-5% of nylon resin weight and weight percent 0.5-1.5%, pour homogenizer into, after fully mixing, be added in the nylon layer plastics extruder of multi-layer co-extruded film blowing device, extrude blown film with bonding resin layer plastics extruder and the polyethylene layer plastics extruder while fusion plastification of multi-layer co-extruded film blowing device, cooling, rolling, makes required puncture resistance nylon laminated film.
2. preparation method as claimed in claim 1, feature is that styrenic polymer comprises SEBS, SEP and SBS.
3. preparation method as claimed in claim 1, is characterized in that described multi-layer co-extruded film blowing device is three layers or three layers of above multi-layer co-extruded film blowing device.
4. preparation method as claimed in claim 1, is characterized in that silicone oil makes coupling agent.
5. preparation method as claimed in claim 1, is characterized in that adopting cold process production technique in lower blowing water cold process or blowing up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210247412.6A CN102731995B (en) | 2012-07-13 | 2012-07-13 | Method for preparing puncture-resistant nylon composite film |
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| CN201210247412.6A CN102731995B (en) | 2012-07-13 | 2012-07-13 | Method for preparing puncture-resistant nylon composite film |
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| CN102731995A CN102731995A (en) | 2012-10-17 |
| CN102731995B true CN102731995B (en) | 2014-03-26 |
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| CN201210247412.6A Active CN102731995B (en) | 2012-07-13 | 2012-07-13 | Method for preparing puncture-resistant nylon composite film |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102993688A (en) * | 2012-10-30 | 2013-03-27 | 无锡三幸高膜科技有限公司 | Super hydrophobic compound film and preparation method thereof |
| CN111300784A (en) * | 2020-03-10 | 2020-06-19 | 新纶复合材料科技（常州）有限公司 | Nylon characteristic and preparation method of aluminum-plastic composite film using nylon with characteristic |
| CN113580519A (en) * | 2021-06-02 | 2021-11-02 | 天津新兴东方临近空间航天科技有限公司 | Production process of fluororesin multilayer co-extrusion film with good gas barrier property |
| CN113619058A (en) * | 2021-08-12 | 2021-11-09 | 天津新兴东方临近空间航天科技有限公司 | Multilayer co-extrusion film technology for high and low temperature resistant fluororesin helium barrier film |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1597311A (en) * | 2003-09-17 | 2005-03-23 | 宇部兴产株式会社 | Asymmetric multi-layer film having polyamide layer |
| CN1721178A (en) * | 2004-06-18 | 2006-01-18 | 阿克马公司 | Multilayer structure having a layer based on polyamide and on hdpe |
| CN102310608A (en) * | 2011-06-22 | 2012-01-11 | 包头科瑞尔新材料有限公司 | Multi-layer co-extrusion volatile rust-proof film |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1597311A (en) * | 2003-09-17 | 2005-03-23 | 宇部兴产株式会社 | Asymmetric multi-layer film having polyamide layer |
| CN1721178A (en) * | 2004-06-18 | 2006-01-18 | 阿克马公司 | Multilayer structure having a layer based on polyamide and on hdpe |
| CN102310608A (en) * | 2011-06-22 | 2012-01-11 | 包头科瑞尔新材料有限公司 | Multi-layer co-extrusion volatile rust-proof film |
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