CN108164789A - One kind is packed for expanded material - Google Patents

One kind is packed for expanded material Download PDF

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Publication number
CN108164789A
CN108164789A CN201711409644.6A CN201711409644A CN108164789A CN 108164789 A CN108164789 A CN 108164789A CN 201711409644 A CN201711409644 A CN 201711409644A CN 108164789 A CN108164789 A CN 108164789A
Authority
CN
China
Prior art keywords
expanded material
packed
kind according
polyether polyol
thermoplastic resin
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
Application number
CN201711409644.6A
Other languages
Chinese (zh)
Inventor
王永梅
汪子璇
李璟
刘飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Agricultural University AHAU
Hangzhou Bite Greenpack Co Ltd
Original Assignee
Anhui Agricultural University AHAU
Hangzhou Bite Greenpack Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Anhui Agricultural University AHAU, Hangzhou Bite Greenpack Co Ltd filed Critical Anhui Agricultural University AHAU
Priority to CN201711409644.6A priority Critical patent/CN108164789A/en
Publication of CN108164789A publication Critical patent/CN108164789A/en
Pending legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
    • C08J9/143—Halogen containing compounds
    • C08J9/147—Halogen containing compounds containing carbon and halogen atoms only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B32B29/002—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B29/007—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material next to a foam layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/40—Applications of laminates for particular packaging purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/44—Applications of resilient shock-absorbing materials, e.g. foamed plastics material, honeycomb material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/46—Applications of disintegrable, dissolvable or edible materials
    • B65D65/466—Bio- or photodegradable packaging materials
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0014—Use of organic additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0066—Use of inorganic compounding ingredients
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
    • C08J9/141—Hydrocarbons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/0221—Vinyl resin
    • B32B2266/0228—Aromatic vinyl resin, e.g. styrenic (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/0221—Vinyl resin
    • B32B2266/0235—Vinyl halide, e.g. PVC, PVDC, PVF, PVDF
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/025—Polyolefin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/56—Damping, energy absorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/716—Degradable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
    • C08J2203/142—Halogenated saturated hydrocarbons, e.g. H3C-CF3
    • C08J2203/144—Perhalogenated saturated hydrocarbons, e.g. F3C-CF3
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/04—Homopolymers or copolymers of ethene
    • C08J2323/06—Polyethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/10—Homopolymers or copolymers of propene
    • C08J2323/12—Polypropene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2325/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
    • C08J2325/02—Homopolymers or copolymers of hydrocarbons
    • C08J2325/04—Homopolymers or copolymers of styrene
    • C08J2325/06—Polystyrene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2327/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08J2327/06—Homopolymers or copolymers of vinyl chloride
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2471/00—Characterised by the use of polyethers obtained by reactions forming an ether link in the main chain; Derivatives of such polymers
    • C08J2471/02—Polyalkylene oxides
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
    • Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

The present invention relates to packing technique fields, and in particular to one kind is packed for expanded material.Its raw materials by weight includes following components：Thermoplastic resin 50% ~ 55%；Acetic acid 0.4% ~ 0.6%；Vinyl acetate 0.8% ~ 1.3%；Polyether polyol 13% ~ 16%；Foaming agent 4.6% ~ 5.5%；Adhesive 4 ~ 8%；Starch 18% ~ 22.5%.The expanded material has relatively low density and moderate elasticity modulus; so as to bring preferable protective effect for the article packed; effect with antidetonation; it can repeatedly use simultaneously; avoid the disposable waste brought; meanwhile, it is capable to it degrades under light illumination, and degradation cycle under natural conditions is 13 years；The expanded material balances hydraulic performance decline caused by reusing and degrading, and so as to simplify packaging, and provides the foundation to be environmental-friendly.

Description

One kind is packed for expanded material
Technical field
The present invention relates to packing technique fields, and in particular to one kind is packed for expanded material.
Background technology
Packaging（packaging）To protect product in the process of circulation, facilitate storage and transportation, promote sale, by certain technology The overall title of container, material and adminicle etc. used in method.Carton package or packed in cases are numerous packets of packaging field One kind in dress mode.Packed in cases refers to product in the process of circulation, for protection product, facilitates storage and transportation, promotion sale, uses The packaging that paper box body carries out product.Packed in cases is a kind of most widely used manner of packing.Packed in cases, which has, to be taken Material it is easy, light-weight, easy printing, design molding it is easy, of low cost the features such as, be widely used for commodity marketing packing and Transportation and packing.It is typically used as the wrappage or protective outer layer objects for articles of commodity.
By papery difference, packed in cases is divided into as corrugated case, single cardboard box etc., and current cardboard or packed in cases are big Mostly using corrugated board or honeycomb cardboard, then again as protective outer layer objects for articles.Again in carton place foam, The shockproof anticracking filler such as air bag uses object as internal layer.There is some shortcomings for current such manner of packing, are first The internal layer of packed in cases using object due to being mostly the materials such as plastics, foam, these materials do not allow it is degradable, environmental pollution compared with Greatly；Secondly needing to be put into a large amount of packing material in carton, process is complex.
Invention content
The purpose of the present invention is to solve the above problems, provide one kind and are packed for expanded material, which is used for It is prepared into carton jointly with cardboard, expanded material is placed between two layers of cardboard, and can be according to the actual needs at two layers Fill different amounts of expanded material between cardboard, in practical application, can according to actual needs, according to the shape of protection article, Size, in bulk by the inner wall of carton or whole installation into the shape of matching, the process by the filling of expanded material how much To control；Meanwhile the expanded material has the characteristics that easily to degrade, environmental pollution is smaller, avoids as far as possible conventionally employed It is polluted caused by two layers of use object of ectonexine.
In order to reach foregoing invention purpose, the present invention uses following technical scheme：
A kind of novel package expanded material, raw materials by weight include following components：
Thermoplastic resin 50% ~ 55%；Acetic acid 0.4% ~ 0.6%；Vinyl acetate 0.8% ~ 1.3%；Polyether polyol 13% ~ 16%；Hair Infusion 4.6% ~ 5.5%；Adhesive 4 ~ 8%；Starch 18% ~ 22.5%.
Preferably, raw materials by weight includes following components：
Thermoplastic resin 53%；Acetic acid 0.5%；Vinyl acetate 1%；Polyether polyol 15%；Foaming agent 5%；Adhesive 5%；Starch 20.5%。
Preferably, the thermoplastic resin is polyethylene, polypropylene, polystyrene or polyvinyl chloride.
Preferably, the grain size of thermoplastic resin is less than 1mm.
Preferably, the degree of polymerization of the thermoplastic polyethylene, polypropylene, polystyrene or polyvinyl chloride is 500- 1200。
Preferably, the polyether polyol is polyoxypropyleneglycol, polytetrahydrofuran diol, trimethylolpropane polyethers Or the PolyTHF of terminal hydroxy group.
Preferably, the polyether polyol is PPG1500-PPG2500.The molecular size range of PPG is to the density of foaming agent There is certain influence with elasticity modulus.
Preferably, the foaming agent be composite foamable agent, dichlorotetra-fluoroethane, trichorotrifluoroethane including 12-15 parts Or isopentane, the oxide powder and zinc of 0.5-0.8 parts of diisopropylbenzene (DIPB) and 0.3-0.5 part.
Preferably, stability control agent 1.5-2.4% is further included.
Preferably, the stability control agent is dibenzoyl peroxide or dibutyl tin laurate.Stability control agent energy Enough ensure expanded material within a certain period of time, big variation does not occur for elasticity modulus holding, so as to reach good antidetonation effect Fruit.This two kinds of stability control agents can have good stability contorting effect.Addition is excessively high or too low can all influence to stablize Effect.
In order to ensure that expanded material, without degrading, specially adds in stability control agent with certain service life, from And can the regular hour can be used under normal conditions, ensure that the performance of expanded material is stablized.
Preferably, the expanded material is foamed and solidified by foam process using the raw material.
Compared with prior art, the present invention advantageous effect is：The expanded material has relatively low density and moderate elasticity Modulus so as to bring preferable protective effect for the article packed, has the effect of antidetonation, while can be repeated several times and make With, the disposable waste brought is avoided, meanwhile, it is capable to degrade under light illumination, and degradation week under natural conditions Phase is 1-3；The expanded material balances hydraulic performance decline caused by reusing and degrading, and is wrapped so as to simplify Dress, and provide the foundation to be environmental-friendly.
Description of the drawings
Fig. 1 is degradation figure of the expanded material of the present invention at 30 DEG C；
Fig. 2 is degradation figure of the expanded material of the present invention at 50 DEG C；
Fig. 3 is the degradation time of expanded material of the present invention and the relational graph of the degree of polymerization；
Fig. 4 is the foaming agent use of the present invention and relational graph of degrading；
Fig. 5 is the addition of stability control agent of the present invention and the relational graph of wear life.
Specific embodiment
Explanation is further described to technical scheme of the present invention below by specific embodiment.
If without specified otherwise, the raw material employed in the embodiment of the present invention is raw material commonly used in the art, is implemented Method employed in example is the conventional method of this field.
Embodiment 1：
A kind of novel package expanded material, raw materials by weight include following components：Thermoplastic resin（Grain size is less than The polyethylene of 1mm）55%；Acetic acid 0.4%；Vinyl acetate 1.3%；Polyether polyol 13%；Foaming agent 5.5%；Adhesive 6.8%； Starch 18%.
The degree of polymerization of polyethylene is 500-1200.Polyether polyol is polyoxypropyleneglycol.The foaming agent is two Chloro-tetrafluoroethane.
The expanded material is foamed and solidified by foam process using the raw material.
Elastic modulus E is 120-200MPa, density 0.5-0.8g/cm3
Embodiment 2：
A kind of novel package expanded material, raw materials by weight include following components：
Thermoplastic resin（Grain size is less than the polypropylene of 1mm）50%；Acetic acid 0.6%；Vinyl acetate 0.8%；Polyether polyol 16%； Foaming agent 4.6%；Adhesive 5.5%；Starch 22.5%.The polyacrylic degree of polymerization is 500-1200.The polyether polyol is poly- Erythritan.The foaming agent is composite foamable agent, includes 15 parts of trichorotrifluoroethane, 0.5 part of diisopropylbenzene (DIPB) and 0.5 part of oxide powder and zinc.
The expanded material is foamed and solidified by foam process using the raw material.
Elastic modulus E is 150-250MPa, density 0.5-0.8g/cm3。
Embodiment 3：
A kind of novel package expanded material, raw materials by weight include following components：Thermoplastic resin（Grain size is less than The polystyrene 5 of 1mm）3%；Acetic acid 0.5%；Vinyl acetate 1%；Polyether polyol 15%；Foaming agent 5%；Starch 20.5%.
The degree of polymerization of polystyrene is 500-1200.The polyether polyol is the PolyTHF of terminal hydroxy group.It is described Foaming agent is composite foamable agent, includes 15 parts of isopentane, 0.6 part of diisopropylbenzene (DIPB) and 0.4 part of oxide powder and zinc.
The expanded material is foamed and solidified by foam process using the raw material.
Elastic modulus E is 150-250MPa, density 0.5-0.8g/cm3。
Embodiment 4：
A kind of novel package expanded material, raw materials by weight include following components：
Thermoplastic resin 50.6%；Acetic acid 0.6%；Vinyl acetate 0.9%；Polyether polyol 14%；Foaming agent 5%；Starch 22.5%； Stability control agent 2.4%.
The thermoplastic resin is that the degree of polymerization is the polyethylene that 500-1200 grain sizes are less than 1mm.
The polyether polyol is PPG1500-PPG2500.The foaming agent is composite foamable agent, includes 15 parts of dichloro Tetrafluoroethane, 0.7 part of diisopropylbenzene (DIPB) and 0.5 part of oxide powder and zinc.The stability control agent is dibenzoyl peroxide.
The expanded material is foamed and solidified by foam process using the raw material.
Elastic modulus E is 120-250MPa, density 0.5-0.8g/cm3。
Embodiment 5：
A kind of novel package expanded material, raw materials by weight include following components：
Thermoplastic resin 50.1%；Acetic acid 0.6%；Vinyl acetate 1.3%；Polyether polyol 15%；Foaming agent 5.5%；Starch 18%； Stability control agent 1.5%.
The thermoplastic resin is that the degree of polymerization is the polyvinyl chloride that 500-1200 grain sizes are less than 1mm.
The polyether polyol is PPG1500-PPG2500.The foaming agent is composite foamable agent, includes 12 parts of trichlorine Trifluoroethane, 0.7 part of diisopropylbenzene (DIPB) and 0.5 part of oxide powder and zinc.The stability control agent is dibutyl tin laurate.
The expanded material is foamed and solidified by foam process using the raw material.
Elastic modulus E is 120-250MPa, density 0.5-0.8g/cm3。
It is shone by the expanded material to the various embodiments described above in simulating sun, receives the sunshine-duration of 30 DEG C of 8 hours, simulation daily Aging, curve graph such as Fig. 1 of specific simulation degradation aging；
It is shone by the expanded material to the various embodiments described above in simulating sun, receives the sunshine-duration of 50 DEG C of 8 hours, simulation daily Aging, curve graph such as Fig. 2 of specific simulation degradation aging；
The raising that can be seen that temperature by two kinds of simulation degradation with aging figures can be with accelerated degradation, so as to utilize the photograph of ultraviolet light Penetrate the degradation for causing expanded material；It and can be in a relatively short period of time（1-3）Be degraded to it is smaller to environmental hazard degree or The harmless low molecular weight product of person, finally mixes with soil, becomes a part for soil.
Fig. 3 is that influence of the degree of polymerization of the thermoplastic resin under 30 DEG C of simulations in the expanded material prepared to degradation time is closed System's figure, it can be seen from the figure that with the raising of the degree of polymerization, degradation time gradually increases,
When Fig. 4 is using composite foamable agent and single foaming agent, the degradation curve figure of polyethylene；Wherein composite foamable agent is three Chloro-trifluoro-ethane, diisopropylbenzene (DIPB) and oxide powder and zinc, single foaming agent are dichlorotetra-fluoroethane.
Due to during normal use, expanded material is filled as filler between cardboard, therefore, expanded material energy It is enough steadily to use certain time；
But the stability used, it is related with the stability control agent of addition.
As shown in figure 5, closed using the usage time of expanded material prepared by the polyethylene of stabilizer in shading System's figure.The usage time of expanded material prepared by the polyethylene of usually unused stabilizer is 8-15 days, more than this time, bullet Property modulus can increase, and anti seismic efficiency be caused to reduce, after reaching 30 days, anti seismic efficiency is reduced to original 70%.And it uses and stablizes The expanded material of controlling agent can ensure its preferable foamed state in 20-30 days, and after 60 days, anti seismic efficiency can just drop Down to original less than 70%.
In addition, the molecular size range of PPG has certain influence to the density and elasticity modulus of foaming agent.Molecular weight is higher, So that the density of foaming agent is higher, but excessively high or too low PPG molecular weight is to the elasticity modulus of expanded material control and close Degree control is respectively provided with harmful effect.

Claims (10)

1. one kind is packed for expanded material, which is characterized in that its raw materials by weight includes following components：
Thermoplastic resin 50% ~ 55%；Acetic acid 0.4% ~ 0.6%；Vinyl acetate 0.8% ~ 1.3%；Polyether polyol 13% ~ 16%；
Foaming agent 4.6% ~ 5.5%；Starch 18% ~ 22.5%.
2. one kind according to claim 1 is packed for expanded material, which is characterized in that its raw materials by weight includes Following components：
Thermoplastic resin 53%；Acetic acid 0.5%；Vinyl acetate 1%；Polyether polyol 15%；Foaming agent 5%；Starch 20.5%.
3. one kind according to claim 1 or 2 is packed for expanded material, which is characterized in that the thermoplastic resin is poly- Ethylene, polypropylene, polystyrene or polyvinyl chloride.
4. one kind according to claim 3 is packed for expanded material, which is characterized in that the thermoplastic resin is poly- second Alkene, polypropylene, polystyrene or polyvinyl chloride the degree of polymerization be 500-1200.
5. one kind according to claim 1 or 2 is packed for expanded material, which is characterized in that the polyether polyol is poly- Propylene oxide glycol, polytetrahydrofuran diol, trimethylolpropane polyethers or terminal hydroxy group PolyTHF.
6. one kind according to claim 1 or 2 is packed for expanded material, which is characterized in that the polyether polyol is PPG1500-PPG2500。
7. one kind according to claim 1 or 2 is packed for expanded material, which is characterized in that the foaming agent is compound hair Infusion, including 12-15 parts of dichlorotetra-fluoroethane, trichorotrifluoroethane or isopentane, 0.5-0.8 parts of diisopropylbenzene (DIPB) and 0.3- 0.5 part of oxide powder and zinc.
8. one kind according to claim 1 or 2 is packed for expanded material, which is characterized in that further includes stability control agent 1.5-2.4%。
9. one kind according to claim 8 is packed for expanded material, which is characterized in that the stability control agent is peroxidating Dibenzoyl or dibutyl tin laurate.
10. one kind according to claim 1 or 2 is packed for expanded material, which is characterized in that the expanded material uses institute Raw material is stated to foam and solidify by foam process.
CN201711409644.6A 2017-12-23 2017-12-23 One kind is packed for expanded material Pending CN108164789A (en)

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Application publication date: 20180615