CN107521065A - A kind of high temperature resistant type packing film material and preparation method thereof - Google Patents

A kind of high temperature resistant type packing film material and preparation method thereof Download PDF

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Publication number
CN107521065A
CN107521065A CN201710725820.0A CN201710725820A CN107521065A CN 107521065 A CN107521065 A CN 107521065A CN 201710725820 A CN201710725820 A CN 201710725820A CN 107521065 A CN107521065 A CN 107521065A
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China
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parts
area
temperature
deg
raw material
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CN201710725820.0A
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Chinese (zh)
Inventor
陈元晓
单涛
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安徽天大环保新材料股份有限公司
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Priority to CN201710725820.0A priority Critical patent/CN107521065A/en
Publication of CN107521065A publication Critical patent/CN107521065A/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions 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
    • C08L23/04Homopolymers or copolymers of ethene
    • C08L23/06Polyethene
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions 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
    • C08L23/04Homopolymers or copolymers of ethene
    • C08L23/08Copolymers of ethene
    • C08L23/0807Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
    • C08L23/0815Copolymers of ethene with aliphatic 1-olefins
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2007/00Flat articles, e.g. films or sheets
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/08Stabilised against heat, light or radiation or oxydation
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00Applications
    • C08L2203/16Applications used for films

Abstract

The present invention relates to a kind of high temperature resistant type packing film material, be divided into, in, it is outer three layers;Internal layer is made up of following raw material:20 30 parts of metallocene PE, 5 10 parts of LLDPE, 35 parts of opening agent, 23 parts of slipping agent, 40 50 parts of high isotactic propylene ethylene copolymer compound;Middle level is made up of following raw material:10 20 parts of metallocene PE, 30 40 parts of LLDPE, 40 50 parts of high isotactic propylene ethylene copolymer compound, 35 parts of propylene-based elastomeric;Outer layer is made up of following raw material:10 20 parts of metallocene PE, 5 10 parts of LLDPE, 40 50 parts of high isotactic propylene ethylene copolymer compound, 35 parts of anti-skidding auxiliary agent, 23 parts of ink bonding agent.The packing film material resistance to elevated temperatures, shock resistance are superior, can ensure shape and intensity when 120 DEG C of temperature of charge is filling, expand the use range of plastic packet product.

Description

A kind of high temperature resistant type packing film material and preparation method thereof

Technical field

The present invention relates to packaging material field, and in particular to a kind of high temperature resistant type packing film material and preparation method thereof.

Background technology

Individual layer PE film-strengths are low, poor sealing performance, weather-resistant property are poor, and multi-layer co-extruded PE films have individual layer PE films can not The premium properties of analogy, above there is extensive selectivity in the application of material, the function of different levels, extensive use can be fully demonstrated In the packaging of the bulk products such as industrial chemicals, grain, chemical fertilizer, suitable for various heavy packaging bags, handbag, collecting refuse bag system Make.But the primary characteristic of PE materials is confined to, when running into high-temperature material, easily contraction, deformation, perforation etc. causes to make With.

The content of the invention

It is an object of the invention to:A kind of high temperature resistant type packing film material and preparation method thereof is provided.

To achieve these goals, the present invention provides following technical scheme:

A kind of high temperature resistant type packing film material, be divided into, in, it is outer three layers;

Described internal layer is made up of following raw material:Metallocene PE 20-30 parts, LLDPE 5- 10 parts, opening agent 3-5 parts, slipping agent 2-3 parts, high isotactic propylene-ethylene copolymerization 40-50 parts;

Described middle level is made up of following raw material:Metallocene PE 10-20 parts, LLDPE 30-40 parts, high isotactic propylene-ethylene copolymerization 40-50 parts, propylene-based elastomeric 3-5 parts;

Described outer layer is made up of following raw material:Metallocene PE 10-20 parts, LLDPE 5- 10 parts, high isotactic propylene-ethylene copolymerization 40-50 parts, anti-skidding auxiliary agent 3-5 parts, ink bonding agent 2-3 parts.

Preferably, described internal layer is made up of following raw material:25 parts of metallocene PE, linear low density polyethylene 8 parts of alkene, 4 parts of opening agent, 2.5 parts of slipping agent, 45 parts of high isotactic propylene-ethylene copolymerization;

Described middle level is made up of following raw material:15 parts of metallocene PE, 35 parts of LLDPE, 45 parts of high isotactic propylene-ethylene copolymerization, 4 parts of propylene-based elastomeric;

Described outer layer is made up of following raw material:15 parts of metallocene PE, 8 parts of LLDPE, 45 parts of high isotactic propylene-ethylene copolymerization, 4 parts of anti-skidding auxiliary agent, 2.5 parts of ink bonding agent.

A kind of preparation method of high temperature resistant type packing film material, is comprised the following steps that:

By it is interior, in, outer three layers of raw material be sent into three independent Screw Extrusions through quantitative servomechanism by air delivery pipe respectively In the hopper of machine, in the hopper of nitrogen protection, it is thoroughly mixed by agitating paddle, heat after through three runners into one Circular die head extrusion, it is cooled and shaped.

Preferably, described screw extruder is divided into 5 heating regions, wherein 1st area is feed zone, 2,3,4 areas are melting Section, 5th area are compression section, heat, are compressed into after fluid and enter die head, 170-190 DEG C of die head temperature through filter screen;Each layer processing conditions It is as follows:

Internal layer:1 area's temperature 50 C, 165 DEG C of 2 area's temperature, 170 DEG C of 3 area's temperature, 172 DEG C of 4 area's temperature, 175 DEG C of 5 area's temperature, Screw speed 40RPM;

Middle level:1 area's temperature 50 C, 165 DEG C of 2 area's temperature, 170 DEG C of 3 area's temperature, 172 DEG C of 4 area's temperature, 175 DEG C of 5 area's temperature, Screw speed 30RPM;

Outer layer:1 area's temperature 50 C, 165 DEG C of 2 area's temperature, 170 DEG C of 3 area's temperature, 172 DEG C of 4 area's temperature, 175 DEG C of 5 area's temperature, Screw speed 40RPM.

The beneficial effects of the present invention are:

1st, packing film material of the invention is divided into three layers, can fully demonstrate the function of different levels, internal layer mainly ensures easily Opening, easily heat-sealing;Middle level provides toughness and intensity;Outer layer ensures ink adhesive rate, frictional behaviour.

2nd, raw material of the invention is green, without the composition that pollution is produced to human body and material;

3rd, not only against weather is good, intensity is high for packing film material of the invention, and resistance to elevated temperatures, shock resistance are all It is better than plain polypropylene, polythene material, shape and intensity can be ensured when 120 DEG C of temperature of charge is filling, expanded significantly The use range of plastic packet product.

4th, the transverse tensile strength 29.5MPa of packing film material of the invention, longitudinal tensile strength 31.8MPa, fracture are stretched Long rate >=600%, fall to mark impact strength > 700g.

Specific embodiment

Embodiment 1

A kind of high temperature resistant type packing film material, be divided into, in, it is outer three layers;

Described internal layer is made up of following raw material:20 parts of metallocene PE, 5 parts of LLDPE, 3 parts of opening agent, 2 parts of slipping agent, 40 parts of high isotactic propylene-ethylene copolymerization;

Described middle level is made up of following raw material:10 parts of metallocene PE, 30 parts of LLDPE, 40 parts of high isotactic propylene-ethylene copolymerization, 3 parts of propylene-based elastomeric;

Described outer layer is made up of following raw material:10 parts of metallocene PE, 5 parts of LLDPE, 40 parts of high isotactic propylene-ethylene copolymerization, 3 parts of anti-skidding auxiliary agent, 2 parts of ink bonding agent.

Opening agent is from the special modeling BT101 in Nanjing, and antistatic auxiliary is from the special modeling TJ510 in Nanjing.

Embodiment 2

A kind of high temperature resistant type packing film material, be divided into, in, it is outer three layers;

Described internal layer is made up of following raw material:25 parts of metallocene PE, 8 parts of LLDPE, 4 parts of opening agent, 2.5 parts of slipping agent, 45 parts of high isotactic propylene-ethylene copolymerization;

Described middle level is made up of following raw material:15 parts of metallocene PE, 35 parts of LLDPE, 45 parts of high isotactic propylene-ethylene copolymerization, 4 parts of propylene-based elastomeric;

Described outer layer is made up of following raw material:15 parts of metallocene PE, 8 parts of LLDPE, 45 parts of high isotactic propylene-ethylene copolymerization, 4 parts of anti-skidding auxiliary agent, 2.5 parts of ink bonding agent.

Embodiment 3

A kind of high temperature resistant type packing film material, be divided into, in, it is outer three layers;

Described internal layer is made up of following raw material:30 parts of metallocene PE, 10 parts of LLDPE, 5 parts of opening agent, 3 parts of slipping agent, 50 parts of high isotactic propylene-ethylene copolymerization;

Described middle level is made up of following raw material:20 parts of metallocene PE, 40 parts of LLDPE, 50 parts of high isotactic propylene-ethylene copolymerization, 5 parts of propylene-based elastomeric;

Described outer layer is made up of following raw material:20 parts of metallocene PE, 10 parts of LLDPE, 50 parts of high isotactic propylene-ethylene copolymerization, 5 parts of anti-skidding auxiliary agent, 3 parts of ink bonding agent.

Embodiment 4

A kind of preparation method of high temperature resistant type packing film material, is comprised the following steps that:

By it is interior, in, outer three layers of raw material be sent into three independent Screw Extrusions through quantitative servomechanism by air delivery pipe respectively In the hopper of machine, in the hopper of nitrogen protection, it is thoroughly mixed by agitating paddle, heat after through three runners into one Circular die head extrusion, it is cooled and shaped.

Described screw extruder is divided into 5 heating regions, wherein 1st area is feed zone, 2,3,4 areas are melt zone, and 5th area are Compression section, heat, be compressed into after fluid and enter die head, 170-190 DEG C of die head temperature through filter screen;Each following institute of layer processing conditions Show:

Internal layer:1 area's temperature 50 C, 165 DEG C of 2 area's temperature, 170 DEG C of 3 area's temperature, 172 DEG C of 4 area's temperature, 175 DEG C of 5 area's temperature, Screw speed 40RPM;

Middle level:1 area's temperature 50 C, 165 DEG C of 2 area's temperature, 170 DEG C of 3 area's temperature, 172 DEG C of 4 area's temperature, 175 DEG C of 5 area's temperature, Screw speed 30RPM;

Outer layer:1 area's temperature 50 C, 165 DEG C of 2 area's temperature, 170 DEG C of 3 area's temperature, 172 DEG C of 4 area's temperature, 175 DEG C of 5 area's temperature, Screw speed 40RPM.

Claims (4)

  1. A kind of 1. high temperature resistant type packing film material, it is characterised in that:Described high temperature resistant type packing film material be divided into, in, it is outer Three layers;
    Described internal layer is made up of following raw material:Metallocene PE 20-30 parts, LLDPE 5-10 Part, opening agent 3-5 parts, slipping agent 2-3 parts, high isotactic propylene-ethylene copolymerization 40-50 parts;
    Described middle level is made up of following raw material:Metallocene PE 10-20 parts, LLDPE 30-40 Part, high isotactic propylene-ethylene copolymerization 40-50 parts, propylene-based elastomeric 3-5 parts;
    Described outer layer is made up of following raw material:Metallocene PE 10-20 parts, LLDPE 5-10 Part, high isotactic propylene-ethylene copolymerization 40-50 parts, antistatic auxiliary 3-5 parts, anti-skidding auxiliary agent 3-5 parts, ink combine Agent 2-3 parts.
  2. 2. high temperature resistant type packing film material according to claim 1, it is characterised in that:Described high temperature resistant type packing film Material be divided into, in, it is outer three layers;
    Described internal layer is made up of following raw material:25 parts of metallocene PE, 8 parts of LLDPE, opening 4 parts of agent, 2.5 parts of slipping agent, 45 parts of high isotactic propylene-ethylene copolymerization;
    Described middle level is made up of following raw material:It is 15 parts of metallocene PE, 35 parts of LLDPE, high 45 parts of normality propylene-ethylene copolymerization, 4 parts of propylene-based elastomeric;
    Described outer layer is made up of following raw material:It is 15 parts of metallocene PE, 8 parts of LLDPE, high 45 parts of normality propylene-ethylene copolymerization, 4 parts of anti-skidding auxiliary agent, 2.5 parts of ink bonding agent.
  3. A kind of 3. preparation method of high temperature resistant type packing film material, it is characterised in that:Comprise the following steps that:
    By it is interior, in, outer three layers of raw material be sent into three independent screw extruders through quantitative servomechanism by air delivery pipe respectively In hopper, in the hopper of nitrogen protection, it is thoroughly mixed by agitating paddle, heat after through three runners enter an annulus Shape die head extrusion, it is cooled and shaped.
  4. 4. the preparation method of high temperature resistant type packing film material according to claim 3, it is characterised in that:Described screw rod squeezes Go out machine and be divided into 5 heating regions, wherein 1st area is feed zone, 2,3,4 areas are melt zone, and 5th area are compression section, heat, are compressed into stream Enter die head, 170-190 DEG C of die head temperature through filter screen after body;Each layer processing conditions is as follows:
    Internal layer:1 area's temperature 50 C, 165 DEG C of 2 area's temperature, 170 DEG C of 3 area's temperature, 172 DEG C of 4 area's temperature, 175 DEG C of 5 area's temperature, screw rod Rotating speed 40RPM;
    Middle level:1 area's temperature 50 C, 165 DEG C of 2 area's temperature, 170 DEG C of 3 area's temperature, 172 DEG C of 4 area's temperature, 175 DEG C of 5 area's temperature, screw rod Rotating speed 30RPM;
    Outer layer:1 area's temperature 50 C, 165 DEG C of 2 area's temperature, 170 DEG C of 3 area's temperature, 172 DEG C of 4 area's temperature, 175 DEG C of 5 area's temperature, screw rod Rotating speed 40RPM.
CN201710725820.0A 2017-08-22 2017-08-22 A kind of high temperature resistant type packing film material and preparation method thereof CN107521065A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101439607A (en) * 2008-12-15 2009-05-27 浙江比例包装股份有限公司 High intensity cold contraction stretching casing tube film
CN101927590A (en) * 2010-02-26 2010-12-29 成都思雅科高分子材料有限公司 Multilayer coextruded polyethylene film processed in down-blowing water-cooling ring film method
CN201941208U (en) * 2011-02-28 2011-08-24 海宁市粤海彩印有限公司 Low-temperature impact-resistant polyethylene film
CN102555392A (en) * 2011-12-30 2012-07-11 南京沪江复合材料有限公司 Propene polymer (PP)/polyethylene (PE) three-layer co-extrusion overload packaging bag film and preparation method thereof
CN104441891A (en) * 2014-11-18 2015-03-25 常熟市天娇塑业有限公司 High-impact transparent polyethylene film

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101439607A (en) * 2008-12-15 2009-05-27 浙江比例包装股份有限公司 High intensity cold contraction stretching casing tube film
CN101927590A (en) * 2010-02-26 2010-12-29 成都思雅科高分子材料有限公司 Multilayer coextruded polyethylene film processed in down-blowing water-cooling ring film method
CN201941208U (en) * 2011-02-28 2011-08-24 海宁市粤海彩印有限公司 Low-temperature impact-resistant polyethylene film
CN102555392A (en) * 2011-12-30 2012-07-11 南京沪江复合材料有限公司 Propene polymer (PP)/polyethylene (PE) three-layer co-extrusion overload packaging bag film and preparation method thereof
CN104441891A (en) * 2014-11-18 2015-03-25 常熟市天娇塑业有限公司 High-impact transparent polyethylene film

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