CN116003867B - Foam composite material and packaging buffer material formed by same - Google Patents
Foam composite material and packaging buffer material formed by same Download PDFInfo
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- CN116003867B CN116003867B CN202310150885.2A CN202310150885A CN116003867B CN 116003867 B CN116003867 B CN 116003867B CN 202310150885 A CN202310150885 A CN 202310150885A CN 116003867 B CN116003867 B CN 116003867B
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- 239000000463 material Substances 0.000 title claims abstract description 108
- 239000002131 composite material Substances 0.000 title claims abstract description 55
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 48
- 239000006260 foam Substances 0.000 title claims description 8
- 238000005187 foaming Methods 0.000 claims abstract description 75
- 238000001125 extrusion Methods 0.000 claims abstract description 17
- 238000007493 shaping process Methods 0.000 claims abstract description 17
- 239000008187 granular material Substances 0.000 claims abstract description 14
- 239000002245 particle Substances 0.000 claims description 84
- 239000011324 bead Substances 0.000 claims description 35
- 239000004794 expanded polystyrene Substances 0.000 claims description 17
- 229920000573 polyethylene Polymers 0.000 claims description 12
- 238000004064 recycling Methods 0.000 claims description 12
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 239000006261 foam material Substances 0.000 claims description 4
- -1 polyethylene Polymers 0.000 claims description 4
- 239000008188 pellet Substances 0.000 abstract description 51
- 239000000047 product Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000003749 cleanliness Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 238000004901 spalling Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Landscapes
- Buffer Packaging (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The invention provides a foaming composite material containing a plurality of first foaming granules and a plurality of second foaming granules and a packaging buffer material formed by the foaming composite material, which are used for extrusion bonding and shaping to form a structure body. The first expanded pellet has at least a first cross-section through its central cross-section that is substantially circular and has a first diameter. The second expanded pellet has at least a second cross-section along its major axis through its central cross-section that is substantially elliptical and has a second diameter along its major axis. The second diameter is smaller than the first diameter. In the foaming composite material, the first foaming granules are respectively made of preset foaming materials, and the second foaming granules at least comprise part of preset foaming materials. In the case where the first foamed pellets are mixed with the second foamed pellets, the second foamed pellets are filled in the gaps between the first foamed pellets.
Description
Technical Field
The invention relates to a foaming composite material and a packaging buffer material formed by the foaming composite material. In particular, the present invention relates to a foamed composite material having a first foamed pellet and a second foamed pellet and a packaging cushioning material formed therefrom.
Background
The foamed material is extruded, adhered and set to form product, and the product may be used as light packing buffering material for packing, bearing or protecting article. However, there may be many voids between the expanded particles of such packaging cushioning material, such that the packaging cushioning material is susceptible to fracture or spalling from the voids when subjected to impact or pressure. As noted above, the integrity, stability and protection of the packaging cushioning material, which is susceptible to breakage or peeling, may thus be reduced and the packaged article may be undesirably soiled or contaminated. In addition, broken or flaked pieces or fragments of packaging cushioning material also increase the difficulty in cleaning and recycling such packaging cushioning material. Accordingly, it is desirable to develop foamed composites and packaging cushioning materials formed therefrom that ameliorate the above-described deficiencies.
Disclosure of Invention
Technical means for solving the problems
In order to solve the above-mentioned problems, according to an embodiment of the present invention, a foam composite material is provided for extrusion bonding and shaping to form a structure. The foamed composite material comprises: a plurality of first foamed pellets, at least a first cross-section through the central cross-section thereof being substantially circular and having a first diameter; and a plurality of second expanded beads having at least a second cross-section along a major axis thereof through a central cross-section thereof being substantially elliptical and having a second diameter on the major axis, wherein the second diameter is smaller than the first diameter. The first foaming granules are respectively made of preset foaming materials, and the second foaming granules at least comprise part of the preset foaming materials. In the foamed composite material, when the first foamed particles and the second foamed particles are mixed, the second foamed particles fill in the gaps between the first foamed particles.
Another embodiment of the present invention provides a packaging cushioning material, which is a structure formed by extrusion bonding and shaping the foamed composite material. The packaging cushioning material comprises: a plurality of first particles formed by extrusion bonding and shaping of first foaming granules; and a plurality of second particles formed by extrusion bonding and shaping the second foaming granules. Wherein, the respective first particles in the structure are mutually bonded with other first particles. The first particles are bonded with each other in the structure body, a plurality of first gaps are formed between adjacent parts of the first particles, and each first gap is smaller than each first particle. Wherein, the second particles in the structure are respectively filled in the first gaps.
Technical effects of contrast to the prior art
According to the foaming composite material and the packaging buffer material formed by the foaming composite material, the integrity and the stability of a structure formed by extrusion bonding and shaping can be improved. Thus, when the packaging cushioning material is used to package, carry, or protect an article, the protection of the article may be further enhanced. In addition, since the probability of flaking or breakage can be reduced, the foamed composite materials and the packaging cushioning materials formed therefrom according to various embodiments of the present invention can reduce unintended soiling or contamination of the article when packaging, carrying, or protecting the article. Therefore, the foamed composite material and the packaging cushioning material formed by the foamed composite material according to the embodiments of the invention can improve the reliability and the cleanliness when packaging, bearing or protecting objects.
Drawings
FIG. 1 is a schematic illustration of a foamed composite comprised of a plurality of first foamed pellets and a plurality of second foamed pellets according to an embodiment of the present invention.
Fig. 2 is a schematic view of a foamed composite material according to another embodiment of the present invention.
Fig. 3A and 3B are schematic views of the shape and size of a cross section of a first foamed pellet according to an embodiment of the present invention.
Fig. 4A and 4B are schematic views of the shape and size of the cross section of the second foamed pellet according to an embodiment of the present invention.
Fig. 5 is a schematic illustration of filling voids between first foamed pellets with second foamed pellets in a foamed composite material according to yet another embodiment of the present invention.
FIG. 6 is a schematic illustration of processing a foamed composite material to form a structure according to an embodiment of the present invention.
Fig. 7 is a schematic perspective view of a packaging cushioning material made by extrusion bonding and shaping a foamed composite material according to still another embodiment of the present invention.
Fig. 8 is a schematic view showing the relative arrangement of first and second particles formed from first and second foamed pellets, respectively, in a packaging cushioning material according to an embodiment of the present invention.
Reference numerals illustrate:
10: foaming composite material
100: First foamed pellet
100': First particles
200: Second foamed pellet
200': Second particles
500: Machining program
1000: Packaging cushioning material
AX1: long axis
AX2: short shaft
C1: center of the machine
C2: center of the machine
L1: first diameter
L2: second diameter
L3: third diameter
M: mould
O: structure body
P1: first section plane
P2: second section plane
R: local area
V: void space
V1: first gap
Detailed Description
Various embodiments will be described hereinafter and those skilled in the art will readily appreciate the conception and the principles of the present invention upon examination of the following drawings. However, while specific embodiments are described herein, these embodiments are merely illustrative, and are not considered in a limiting or exhaustive sense in all respects. Accordingly, various changes and modifications to the present invention should be apparent to and readily attainable by one versed in the art from the present invention without departing from the spirit and principles of the present invention.
Referring to fig. 1 and 2, a foamed composite material 10 for extrusion bonding to form a structure is disclosed in accordance with an embodiment of the present invention. On the support, the foamed composite material 10 may include a plurality of first foamed pellets 100 and a plurality of second foamed pellets 200. The first foamed particles 100 may be made of a predetermined foaming material, and the second foamed particles 200 may include at least a portion of the predetermined foaming material.
As described above, in the case where the first foamed particles 100 and the second foamed particles 200 have partially identical predetermined foamed materials, the degree of bonding of the foamed composite material 10 during extrusion bonding and shaping can be further promoted. In addition, when the finished product made of the composite material 10 is recycled after the use, the difficulty and complexity of recycling the product in a separate category can be reduced or avoided by having a part of the same predetermined foaming material. Accordingly, the integration of the extrusion bonding and shaping of the foamed composite material 10 and the convenience of recycling can be improved.
In particular, the pre-set foaming material may be any material that is foamable to make a volume-expanded structure. For example, the preset foaming material may be Expanded Polystyrene (EPS) (common name, polystyrene), expanded polystyrene (EPP), expanded Ethylene Polymer (EPO), expanded Polyethylene (EPE), or the like, but other embodiments of the present invention are not limited thereto. As described above, the first foamed particles 100 may be made of the predetermined foamed material, and the second foamed particles 200 may be made of the predetermined foamed material, or may include a portion of the predetermined foamed material and a portion of other materials.
According to some embodiments, the second expanded beads 200 may be further manufactured using recycled foamed materials, which are recycled after the predetermined foamed materials are foamed, in addition to a portion of the predetermined foamed materials. Therefore, the recycling property of the preset foaming materials can be further improved, so that the resource demand and consumption of the raw materials of the preset foaming materials are reduced, the recycling of the resources can be promoted, and the environmental problems caused by discarding and processing the products are reduced.
As described above, the second foaming granules 200 may include both the predetermined foaming material and the regenerated foaming material recovered and reproduced after the predetermined foaming material is foamed. For example, the first expanded beads 100 may be made of Expanded Polystyrene (EPS), and the second expanded beads 200 may be made of Expanded Polystyrene (EPS), but the second expanded beads 200 may include a part of Expanded Polystyrene (EPS) directly made of raw materials, and a part of recycled material recovered after the expansion of Expanded Polystyrene (EPS).
As a result, the first and second expanded beads 100 and 200 can be made of materials having substantially the same chemical structure or chemical formula, thereby improving the integration of extrusion bonding and molding and the convenience of recycling. However, in this case, according to some embodiments, the second expanded beads 200 may include at least a portion of recycled and remanufactured recycled material, although the chemical structure or formula is the same. In addition, as disclosed above, according to some embodiments, the second expanded pellet 200 may also be made entirely of a pre-set foaming material that is completely new and not recycled, and has the same chemical structure or chemical formula as the first expanded pellet 100.
Next, referring to fig. 3A and 3B, according to an embodiment of the present invention, at least one first section P1 of the first foamed pellet 100 passing through its center C1, for example, a geometric center section, may be substantially circular and have a first diameter L1. For example, the first expanded pellet 100 may be substantially spherical in shape having a first diameter L1. In addition, referring to fig. 4A and 4B, according to an embodiment of the invention, the second foamed pellet 200 may have at least one second cross section P2 along the long axis AX1 thereof passing through the center C2 thereof, such as a geometric center section, and a second diameter L2 on the long axis AX 1. For example, the second foamed pellet 200 may be substantially elliptical. Wherein, although the first expanded beads 100 may have a slight difference due to the process tolerance and the cross-sectional shape may be circular or nearly circular, and the second expanded beads 200 may have a slight difference due to the process tolerance and the cross-sectional shape may be elliptical or nearly elliptical, the second diameter L2 of the second expanded beads 200 on the long axis AX1 is substantially smaller than the first diameter L1 of the first expanded beads 100 as a whole.
As noted above, according to some embodiments, the diameter of any cross-section of the second expanded pellet 200 through its central C2 cross-section may be smaller than the diameter of any cross-section of the first expanded pellet 100 through its central C1 cross-section. Thus, the overall size of the second expanded pellet 200 can be made smaller than the first expanded pellet 100.
Additionally, according to some embodiments, as shown in fig. 4B, the second profile P2 of the second expanded beads 200 may have a second diameter L2 on the major axis AX1 and a third diameter L3 on the minor axis AX2 thereof. As such, according to the present embodiment, the third diameter L3 may be 1/5 to 2/3 of the second diameter L2.
Next, referring to fig. 5, in the foamed composite material 10, when the first foamed pellets 100 and the second foamed pellets 200 defined above are uniformly mixed, the second foamed pellets 200 may fill the gaps V between the first foamed pellets 100. In particular, the shapes of the different first expanded beads 100 do not have complementarity, and thus, even in the case of closely leaning on adjacent ones, the gaps V remain at least partially between the different adjacent first expanded beads 100, and thus, the degree of bonding and strength therebetween are reduced. On the other hand, the second foaming pellet 200 having the second diameter L2 shorter than the first diameter L1 on the long axis AX1 may be filled in the voids V. As mentioned above, since the at least one second cross section P2 passing through the center C2 thereof may be substantially elliptical, the second expanded beads 200 may be further disposed in the voids V which are not formed in a circular shape or a spherical shape.
In detail, the first expanded beads 100 may have an isotropy with respect to the length of the center C1 thereof, the second expanded beads 200 may not have an isotropy with respect to the length of the center C2 thereof at least on the major axis AX1 and the minor axis AX2, and the first expanded beads 100 have a larger diameter and a larger volume than the second expanded beads 200. Therefore, it is difficult to fill the gaps V of the other first expanded beads 100 between the adjacent first expanded beads 100, and the second expanded beads 200 can be filled with the gaps V more easily. As described above, by filling the second foamed particles 200 in the voids V, the compactness of the overall foamed composite 10 can be further improved.
Additionally, according to some embodiments, the overall and local densities of the foamed composite material 10 may be further adjusted by configuring the densities of the first foamed pellets 100 and the second foamed pellets 200, respectively. For example, while the first expanded beads 100 and the second expanded beads 200 may be made of Expanded Polystyrene (EPS) as well, the density of the second expanded beads 200 may be different from the density of the first expanded beads 100. For example, the density of the second expanded beads 200 may be greater than the density of the first expanded beads 100. Therefore, when the structure is formed by extrusion bonding, the strength of the junctions between the first foamed particles 100 can be reinforced and stabilized while the main body composed of the first foamed particles 100 is reduced as much as possible, or the defects that may be unexpected in the case of the regenerated foamed material can be compensated for by a higher density arrangement when the second foamed particles 200 contain the regenerated foamed material. As described above, according to various embodiments, the density of the first foamed pellets 100 and the density of the second foamed pellets 200 may be formulated based on requirements, design, cost, and materials so that the strength, density, bonding, and weight of the final product are all as desired.
Further, for the foamed composite material 10, the weight ratio of the second foamed pellets 200 may be 5% to 95% based on the formulation of the respective densities of the first foamed pellets 100 and the second foamed pellets 200. If a regenerated foaming material is included, the weight ratio of the regenerated foaming material to each second foaming pellet 200 may be 5% to 95%. That is, each second foaming pellet 200 may include 95% to 5% of the preset foaming material, and may include 5% to 95% of the regenerated foaming material. In addition, the second, different foaming pellets 200 may also contain different proportions of pre-formed foaming material and recycled foaming material. Furthermore, according to some embodiments, the weight ratio of the regenerated foam material may be greater than 5% for the foam composite 10 in order to promote recycling of resources or to comply with environmental regulations.
Next, a packaging cushioning material 1000 of a structure made of the above-described foamed composite material 10 will be further described with reference to fig. 6 to 8.
On the contrary, as shown in fig. 6, according to some embodiments, the foamed composite material 10 may be installed in a mold M having a predetermined shape, and may be subjected to a processing procedure 500 such as press-bonding and setting, or even steam heating to slightly melt the surface thereof. Accordingly, referring to fig. 7, the above-described foaming composite material 10 may be manufactured into a structure body O having a predetermined shape by the restriction of the mold M. The above-described structure O may maintain a predetermined shape and may thus serve as a packaging cushioning material 1000 for packaging, carrying, or protecting a particular object.
As described above, a packaging cushioning material 1000 according to the present embodiment may be a structure body O formed by extrusion bonding and shaping of the foam composite material 10 of each of the above embodiments. Thus, referring to fig. 8, which shows an enlarged schematic view of the partial region R of fig. 7, the packaging cushioning material 1000 may include a plurality of first granules 100 'formed by extrusion bonding and shaping the first foamed granules 100, and a plurality of second granules 200' formed by extrusion bonding and shaping the second foamed granules 200. On the other hand, the first particles 100 'and the second particles 100' in the structure O are bonded to each other, and the first particles 100 'bonded to each other in the structure O may have a plurality of first gaps V1 therebetween, which are not filled with the first particles 100'. Each first gap V1 may be formed between adjacent portions of the first particles 100'. For example, each first gap V1 may be formed between closely adhered adjacent portions of the first particles 100'. On the other hand, the second particles 200' may further fill each of the first gaps V1.
As shown in fig. 7 and 8, in the packaging cushioning material 1000 formed by extrusion bonding and shaping, the first particles 100 'and the second particles 200' may have different shapes from the original first foamed pellet 100 and the second foamed pellet 200. Specifically, the original first and second expanded beads 100 and 200 may have at least partial deformation after being changed into the first and second beads 100 'and 200' due to the press-bonding and setting. In addition, in some embodiments, if further heated, melted or foamed, the original first and second foamed pellets 100 and 200 become the first and second pellets 100 'and 200', and may even further expand to be pressed against each other. Thus, the second particles 200 'having a length of at least the major and minor axes of the relative center, which are not isotropic, may be pressed in the first gaps V1 between the first particles 100' to more easily extend into the gaps deeper in the first gaps V1, such as, but not limited to, the gaps exhibiting sharp corners. Thus, by filling the second particles 200 'between the first particles 100', the compactness of the overall packaging cushioning material 1000 can be improved, and the integrity, stability, and protection of the finished packaging cushioning material 1000 can be improved. On the other hand, the packaging cushioning material 1000 thus formed may reduce or avoid the likelihood of peeling or breaking off, or even soiling or contaminating the packaged article, by impact or pressure.
Further, according to various embodiments, the densities of the original first foamed pellet 100 and the second foamed pellet 200 may be selectively configured to be different such that the densities of the finally formed first particles 100 'are different from the densities of the second particles 200'. For example, the original second expanded beads 200 may be selectively configured to have a density greater than the density of the first expanded beads 100 such that the final second particles 200 'have a density greater than the density of the first particles 100'. In addition, by the above-mentioned density arrangement, the weight ratio of the second particles 200' with respect to the packaging cushioning material 1000 can be made to be 5% to 95%.
As described above, since the packaging cushioning material 1000 is made based on the foamed composite material 10 of the above embodiments, one skilled in the art should understand some of the properties of the packaging cushioning material 1000 from the above description of the foamed composite material 10. For example, the first particles 100 'may be made of a predetermined foaming material, and the second particles 200' may include at least a portion of the predetermined foaming material. Wherein the predetermined foaming material may be, for example, but not limited to, expanded Polystyrene (EPS), expanded polystyrene (EPP), expanded Ethylene Polymer (EPO), or Expanded Polyethylene (EPE). In addition, the second particles 200' may include a predetermined foaming material and a regenerated foaming material recovered and reproduced after the predetermined foaming material is foamed.
In the case where the second particles 200 'include a regenerated foaming material, the weight ratio of the regenerated foaming material may be 5% to 95% for each of the second particles 200'. Furthermore, according to some embodiments, by configuring the relative density ratio of the first particles 100 'and the second particles 200', the weight ratio of the recycled foam material may be greater than 5% for the packaging cushioning material 1000. Therefore, a high degree of recycling of the recycled foam material can be achieved, thereby improving the recycling property of the resources and further improving the environmental protection property of the overall packaging buffer material 1000 while further enhancing the stability. As described above, since the source of the predetermined foaming material is mainly plastic material, the foaming composite material 10 and the packaging cushioning material 1000 made of the same according to the present embodiment can further achieve the purpose of plastic reduction and meet the environmental regulations related to production formulated in various places, so as to promote the development of recycling economy.
In summary, the foamed composite material and the packaging cushioning material made of the foamed composite material according to the embodiments of the present invention have better compactness, integrity, reliability and cleanliness, and can be configured to be applied to more firmly package, carry and protect predetermined objects.
What has been described hereinabove is merely some of the preferred embodiments of the present invention. It should be noted that various changes and modifications could be made herein without departing from the spirit and principles of the invention. It will be apparent to those skilled in the art that the present invention is defined by the appended claims, and that various substitutions, combinations, modifications, and changes may be made without departing from the scope of the invention defined by the appended claims.
Claims (16)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW111141230A TWI838933B (en) | 2022-10-28 | 2022-10-28 | Foaming composite material and package cushioning material formed therefrom |
| TW111141230 | 2022-10-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116003867A CN116003867A (en) | 2023-04-25 |
| CN116003867B true CN116003867B (en) | 2024-11-15 |
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| CN202310150885.2A Active CN116003867B (en) | 2022-10-28 | 2023-02-22 | Foam composite material and packaging buffer material formed by same |
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| TW (1) | TWI838933B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112659445A (en) * | 2019-10-15 | 2021-04-16 | 阿迪达斯股份公司 | Method for producing a particle foam component, in particular a damping element for sports clothing or sports goods |
| CN113174101A (en) * | 2021-05-20 | 2021-07-27 | 浙江瑞堂塑料科技股份有限公司 | Large-particle rotational molding composite material and preparation method and application thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4410479B2 (en) * | 2003-03-25 | 2010-02-03 | 新日本無線株式会社 | Electromagnetic wave absorber |
| JP5192420B2 (en) * | 2009-03-03 | 2013-05-08 | 積水化成品工業株式会社 | Expandable composite resin particles for long-term storage, pre-expanded particles and expanded molded articles |
| TWI464203B (en) * | 2010-09-30 | 2014-12-11 | Sekisui Plastics | Expandable polystyrene resin bead and producing method thereof, polystyrene resin preliminary expanded bead, polystyrene resin foam and producing method thereof, heat insulating material and cushioning material |
| CN104830047B (en) * | 2014-05-09 | 2017-10-24 | 晋江国盛新材料科技有限公司 | The method for preparing formed body, thin slice using colored TPU expanded particles, sheet material |
| JP3206652U (en) * | 2016-07-15 | 2016-09-29 | 株式会社カネカ | cushion |
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- 2022-10-28 TW TW111141230A patent/TWI838933B/en active
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112659445A (en) * | 2019-10-15 | 2021-04-16 | 阿迪达斯股份公司 | Method for producing a particle foam component, in particular a damping element for sports clothing or sports goods |
| CN113174101A (en) * | 2021-05-20 | 2021-07-27 | 浙江瑞堂塑料科技股份有限公司 | Large-particle rotational molding composite material and preparation method and application thereof |
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| Publication number | Publication date |
|---|---|
| CN116003867A (en) | 2023-04-25 |
| TW202417560A (en) | 2024-05-01 |
| TWI838933B (en) | 2024-04-11 |
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