KR20170035633A - Flame retardant air cushion complex film and method for preparation thereof - Google Patents

Flame retardant air cushion complex film and method for preparation thereof Download PDF

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KR20170035633A
KR20170035633A KR1020150134758A KR20150134758A KR20170035633A KR 20170035633 A KR20170035633 A KR 20170035633A KR 1020150134758 A KR1020150134758 A KR 1020150134758A KR 20150134758 A KR20150134758 A KR 20150134758A KR 20170035633 A KR20170035633 A KR 20170035633A
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film
flame retardant
flame
retardant
air
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KR1020150134758A
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Korean (ko)
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KR101791562B1 (en
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박현창
최용일
김효진
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박현창
최용일
김효진
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    • 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
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/18—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by an internal layer formed of separate pieces of material which are juxtaposed side-by-side
    • B32B3/20—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by an internal layer formed of separate pieces of material which are juxtaposed side-by-side of hollow pieces, e.g. tubes; of pieces with channels or cavities
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • 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
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
    • 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
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat

Abstract

The present invention relates to a flame-retardant air cushion composite film and a manufacturing method thereof having improved flame retardant properties and impact protection properties and configured to be fire-resistant in case of fire. The flame-retardant air cushion composite film has an effect of safely protecting a packaged product by distributing pressure even if external force is applied thereto, as well as increasing product safety and site safety if the product is packaged using the flame-retardant air cushion composite film in a site where flames frequently are generated in a case of work. Moreover, the present invention has an effect of being low-cost, lightweight, and excellent in waterproofing and chemical resistance.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a flame retardant air cushion composite film,

The present invention relates to a flame retardant air cushion composite film which improves flame retardancy and impact protection of a packaging film to prevent burning on fire.

Polymer films such as polyolefin films are used in a variety of applications. For example, polyolefin films are used in packaging materials, labels, release liners, optical filters, furniture laminations, blinds, electronic materials, and the like.

Among them, the air-cushion film is a roll-shaped cushion film made of a predetermined width and length and is widely used as a wrapping paper for various products. However, there is a risk of fire like a shipyard, and most of the materials require flame retardant packaging materials at industrial sites where there is a lot of sparkling work.

However, flame-retardant packaging materials are either thin films or polychlorinated vinyl chloride (PVC) over 3T, and impact sensitive products such as glass and plate materials rely on wood packaging or sheet metal packaging over 5T.

Therefore, it has been devised a packaging material for a flame retardant air cushion composite film which is resistant to industrial accidents due to a strong shock and light weight, and is easy to work, and prevents industrial materials from falling down when a packaging material is dropped. Also, we wanted to implement a product that can be recycled as a recycled resin after disposal.

Korean Patent Registration No. 10-0730746

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a flame retardant air cushion composite film which is improved in flame retardancy and impact protection of a product,

Another object of the present invention is to provide a flame retardant air cushion composite film which is strong against impact, low in unit cost, light in weight, excellent in water resistance and chemical resistance.

The present invention relates to a first flame retardant film; A second flame retardant film; And an air cushion film formed by laminating an air bubble film and a flame retardant sealing film formed between the first and second flame retarding films; Wherein the air bubble film comprises at least one air bubble having a concavo-convex shape.

The flame retardant air-cushion composite film according to the present invention has an effect of safely protecting a product that distributes pressure and distributes the pressure even when externally applying a force, and the flame retardant air- Packing products using air cushion composite film has an effect of enhancing product safety and field stability.

1 is a structural view of a flame retardant air cushion composite film according to an embodiment of the present invention.
2 shows an apparatus for manufacturing a flame retardant air cushion composite film according to an embodiment of the present invention.
3 shows a manufacturing apparatus for producing a flame retardant air cushion composite film according to an embodiment of the present invention.
Fig. 4 is a structural diagram showing laminated flame retardant air cushion composite films of the present invention. Fig.

The method for producing the flame retardant air cushion composite film of the present invention will be described in detail below. Unless otherwise defined, technical terms and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In the following description, And a description of the known function and configuration will be omitted.

The flame-retardant air-cushion composite film of the present invention is manufactured by using a manufacturing apparatus including a discharge portion and a joint portion, and after each film is formed by a T-die processing method at a discharge portion of the manufacturing apparatus, And they are manufactured in such a way that they have a structure as shown in Fig.

 The flame retardant air cushion composite film 130 according to an embodiment of the present invention will be described in detail with reference to FIG.

The present invention relates to a first flame-retardant film (100); A second flame retarding film 120; And an air cushion film (110) formed by laminating an air bubble film (111) and a flame retardant sealing film (112) formed between the first and second flame retarding films (100, 120). Wherein the air bubble film (111) comprises at least one air bubble having a concavo-convex shape.

The first flame retardant film 100 or the second flame retardant film 120 protects the inner space formed by the air curtain film 110 and can strengthen the flame retardant air cushion composite film 130.

The air cushion film 110 may have a structure in which an air bubble film and a (111) flame-retardant sealing film 112 are laminated. The air bubble film 111 may include one or more air bubbles in a concave-convex shape.

The first flame retardant film 100, the second flame retardant film 120, the air bubble film 111 and the flame-retardant sealing film 112 may be extruded from a polyolefin resin containing 15 to 20 wt% of an additive. The polyolefin resin is not limited insofar as the object of the present invention is achieved, but it is preferable to use polyethylene having a density of 0.90 to 0.95 g / cm3 because of excellent flame retardancy and buffering properties.

The additives include a flame retardant agent, and a master batch is prepared and used for dispersibility. The composition ratio of the additives is not particularly limited, but is preferably 30 to 80% by weight of a flame retardant agent, 10 to 60% Preferably from 1 to 10% by weight, more preferably from 60 to 70% by weight of a flame retardant, from 25 to 35% by weight of polyethylene and from 1 to 7% by weight of a compatibilizer.

The flame retardant may be one or more flame retardants selected from the group consisting of inorganic flame retardant and a halogen-based flame retardant, inorganic flame retardant is antimony trioxide (Sb 2 O 3), antimony pentoxide (Sb 2 O 5), aluminum hydroxide (Al (OH 3) 3), magnesium hydroxide (Mg (OH) 2), calcium carbonate (CaCO 3), may be used, such as magnesium carbonate (MgHCO 3), halogen-based flame retardant is a pawl rib tombstones phenyl (PBB), pawl rib-modify ether (PBDE), tetrabromobisphenol-A (TBBPA), decabromodiphenyloxide (DBDPO), hexabromocyclododecane (HBCD) and tribromophenol (TBP).

The use of antimony trioxide (Sb 2 O 3 ) as the inorganic flame retardant and decabromodiphenyl oxide (DBDPO) as the halogen-based flame retardant are preferable because they have a high flame retardancy even when added in a small amount and have a higher flame retardancy than other flame retardants. It is not.

In addition, diantimony trioxide (Sb 2 O 3 ) is a synergistic effect when antimony trioxide is used in combination with a halogen-based flame retardant, since the free radical reaction is stopped at the time of the combustion of antimony to obtain a flame retardant effect and excellent dispersibility .

The compatibilizer is a component that imparts compatibility with an intermolecular attractive force of a component having a different structure and is a component capable of increasing the compatibility of the polyethylene with the flame retardant and increasing the dispersibility. In the present invention, a polyolefin-based compatibilizer can be used. For example, a polyethylene wax or a polypropylene wax can be used. In one embodiment of the present invention, a PE-WAX compatibilizer is used, but the present invention is not limited thereto.

The specific gravity of the additive masterbatch according to an embodiment of the present invention is 0.96 占. 05 g / cm3, and the moisture content is 0.1% or less, which is preferable, but not limited to, enhancing the flame retarding effect.

The process of manufacturing the flame-retardant air cushion composite film 130 of the present invention is shown in Figs. 2 to 3. Fig. The flame-retardant air-cushion composite film 130 of the present invention can be manufactured by laminating the first flame-retardant film 100 and the air-cushion film 110 and then laminating the second flame-retardant film 120.

The production apparatus can be manufactured using a tea die 10 having two resin discharging portions and a tea die 20 having one resin discharging portion. The temperature of the thermosetting resin may be, but is not limited to, a cylinder temperature of 180 to 200 ° C, a head temperature of 200 to 230 ° C, a neck temperature of 220 to 250 ° C, and a temperature of 240 to 270 ° C.

The first flame-retardant film 100 may be prepared by dry blending an additive master medium to a polyolefin resin, for example, a polyethylene resin having a melt index of 0.5 to 1 g / 10 minutes, and feeding it to the hopper . The thickness of the first flame-retardant film 100 may be 0.08-0.1 mm, but is not limited thereto. Further, when the first flame-retardant film 100 is manufactured, the surface can be further subjected to corona treatment. Although the strength of the corona treatment is not limited, it is preferably 38 dynes or more, and it is easy to use as a packaging material because of its excellent adhesive strength in the above-mentioned range.

The polyolefin resin used for the first flame-retardant film 100 is preferably polyethylene having a melt index of 0.5 to 1 g / 10 minutes because it has resistance to sparks generated during welding, grinding, or the like. Further, when the thickness of the first flame retarding film 100 is in the range of 0.08 to 0.1 mm, resistance to short balls (iron balls used for removing rust) is excellent and excellent adhesion with the air cushion film 110 is preferable Do. If the air cushion film 110 is peeled off, an additional adhesive layer must be added, which may result in an increase in cost and an additional reduction in cost.

In addition, the first flame retarding film 100 of the present invention can prolong the life of the product by prescribing a UV agent and a long-life agent in order to enhance resistance to ultraviolet rays, and in order to have resistance to radiant heat, a silver foil deposited film, a polyethylene terephthalate A film and a stretched polypropylene film can be further used. Further, to prevent stretching of the film, a flame retardant glass fiber or a flame retardant polyester can be further used.

The air cushion film 110 is formed by laminating an air bubble film 111 and a flame-retardant sealing film 112 produced by one extruder. In the two dies of the tire 10 of Fig. 2, a polyolefin resin And may be manufactured by discharging. As the polyolefin resin, for example, a mixture of a polyethylene resin having a melt index of 1.5 to 2 g / 10 min and an additive master medium can be used. The resin flows from the one discharge portion to the air bubble mold 65 to be vacuum molded to be made of the air bubble film 111 and the resin flows from the other discharge portion to the flame-retardant sealing film 112, ≪ / RTI > The air bubble film 111 and the flame-retardant sealing film 112 are heated to 240 to 270 ° C. and are thermally fused at the point where the silicon cooling roller 50 and the air bubble mold roller 60 meet to form air bubbles can do.

The air bubble film 111 may be 0.085 to 0.095 mm in thickness because it is vacuum-formed and drawn in the air bubble mold 65. However, the air bubble film 111 is preferable because the impact strength is excellent within the above range. The flame-retardant sealing film 112 may have a thickness of 0.065 to 0.075 mm, but is not limited thereto. It is preferable that the flame-retardant sealing film 112 does not peel off from the first flame-retardant film 100 within the above range.

The first flame-retardant film 100 is put on the silicon cooling roller side and adhered to the flame-retardant sealing film 112 by the adhesive force of the air bubble film 111 melted in the thermosetting resin 10 without use of another adhesive It can be laminated.

The second flame-retardant film 120 can be manufactured by flowing polyolefin resin from the thermosetting resin 20 having one discharge portion to the cooling roller 70. The polyolefin resin may be a resin containing an additive master medium in a polyethylene having a melt index of 1.5 to 2 g / 10 minutes, and the thickness of the second flame-retardant film 120 may be 0.015 to 0.025 mm, but is not limited thereto . It is preferable to exhibit sufficient flame retarding effect within the above range.

 The film 100 + 110 laminated with the first flame retardant film 100 and the air cushion film 110 is laminated with the second flame retardant film 120 extruded from the thermosetting resin 20 to form a flame retardant air cushion composite film 130 ) Can be completed.

The flame-retardant air-cushion composite film 130 of the present invention further comprises an air cushion film 110 and a second flame-retardant film 120 as shown in FIG. 4 in order to increase the heat insulation rate and increase resistance to impact And they may be formed simultaneously by joining them together, or may be formed into a multilayered film of a plurality of layers or more by adding the desired number of layers.

Hereinafter, the present invention will be described more specifically based on the following examples. However, these examples are only for illustrating the present invention, but the present invention is not limited thereto.

[Example 1]

The polyethylene resin of the following Table 1 was mixed with a dry dope hopper by dry blending. The temperature of each manufacturing apparatus was 190 ° C for a cylinder, 220 ° C for a head, 230 ° C for a neck, and 250 ° C for a die. A polyethylene resin is added to the thermosetting resin 10 having two discharge ports, and an air bubble film vacuum-molded in a mold roller and a flame-retardant sealing film molded in the other discharging portion are adhered to one discharge portion, .

The first flame-retardant film and the air-cushion film are put together through the silicone cooling roller of the thermosetting resin 20, and the second flame-retardant film molded by injecting the polyethylene resin into one discharge portion is thermally fused. To prepare a flame retardant air cushion composite film. The properties of the prepared flame retardant air cushion composite film were measured, and the results are shown in Table 2 below.

[Examples 2 to 7]

The same procedure as in Example 1 was carried out except that the flame retardant air cushion composite film was produced in the same manner as in Example 1 except that the components of the additive or the melt index of the polyethylene resin or the thickness of the produced film were changed, Respectively. The properties of the prepared flame retardant air cushion composite film were measured, and the results are shown in Table 2 below.

[Measurement of physical properties]

1) Melt index: ASTM D 1238 (unit g / 10 min, 190 DEG C, 2.16 kg)

2) Flammability Rating: KSM ISO 9773: 2011

3) Flame resistance: KSK ISO 17492: 2007

4) Impact strength: KSM ISO 7765-1: 2002

5) Water resistance: KSC 1EC 60811-1-3: 2002

6) Chemical resistance: KSM 3007

Figure pat00001

Figure pat00002

100: 1st flame retardant film
110: Air cushion film
111: air bubble film
112: flame-retardant sealing film
120: second flame retardant film
130: Flame retardant air cushion composite film
10: Tea dice with two discharging parts
20: Tea dice with one discharge part
50: Silicone cooling roller
60: Air bubble mold Laura
65: Air bubble mold
70: Cooling roller

Claims (10)

A first flame retardant film; A second flame retardant film; And
An air cushion film formed by laminating an air bubble film and a flame retardant sealing film formed between the first and second flame retarding films;
Wherein the air bubble film includes at least one air bubble having a concavo-convex shape. The method according to claim 1,
Wherein the first flame retardant film, the second flame retardant film, the air bubble film, and the flame retardant sealing film are extruded from a polyolefin resin containing 15 to 20 wt% of an additive. 3. The method of claim 2,
Wherein the polyolefin resin is polyethylene having a density of 0.90 to 0.95 g / cm < 3 >. 3. The method of claim 2,
Wherein the additive comprises 30 to 80 wt% of a flame retardant, 10 to 60 wt% of a polyethylene, and 1 to 10 wt% of a compatibilizer. 5. The method of claim 4,
Wherein the flame retardant is at least one selected from the group consisting of an inorganic flame retardant and a halogen flame retardant. 6. The method of claim 5,
The inorganic flame retardant is antimony trioxide (Sb 2 O 3), antimony pentoxide (Sb 2 O 5), aluminum hydroxide (Al (OH) 3), magnesium hydroxide (Mg (OH) 2), calcium carbonate (CaCO 3) and carbonate And magnesium (MgHCO 3 ). ≪ IMAGE > 6. The method of claim 5,
The halogen-based flame retardant is selected from the group consisting of polybrominated biphenyl (PBB), polybrominated diphenyl ether (PBDE), tetrabromobisphenol-A (TBBPA), decabromodiphenyl oxide (DBDPO), hexabromocyclododecane And tribromophenol (TBP). ≪ / RTI > 5. The method of claim 4,
Wherein the compatibilizer is a polyethylene wax or a polypropylene wax. The method according to claim 1,
Wherein the first flame-retardant film and the air-cushion film are laminated together, and then the second flame-retardant film is joined to the flame-retardant air-cushion composite film. A flame retardant air cushion composite film produced by the method of any one of claims 1 to 9.
KR1020150134758A 2015-09-23 2015-09-23 Flame retardant air cushion complex film and method for preparation thereof KR101791562B1 (en)

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Cited By (3)

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CN108264678A (en) * 2018-02-08 2018-07-10 青岛软盛塑业有限公司 Hydrophobic type bubble chamber film and preparation method thereof
CN108485033A (en) * 2018-04-19 2018-09-04 温州市赢创新材料技术有限公司 A kind of insulation crosslinking packaging bubble chamber film and preparation method thereof
CN109384987A (en) * 2018-08-08 2019-02-26 桐乡市凯瑞包装材料有限公司 A kind of degradable bubble protection film and its processing method

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KR102462561B1 (en) 2021-06-07 2022-11-03 한미화 Apparatus for manufacturing air cushion film

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KR100730746B1 (en) 2005-12-26 2007-06-20 이호성 Air bubble foam sheet and manufacturing method thereof

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Publication number Priority date Publication date Assignee Title
JP2005206670A (en) 2004-01-21 2005-08-04 Jsr Corp Flame-retardant resin composition and manufacturing method therefor
JP4918505B2 (en) * 2008-01-09 2012-04-18 川上産業株式会社 Method for producing bubble sheet

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KR100730746B1 (en) 2005-12-26 2007-06-20 이호성 Air bubble foam sheet and manufacturing method thereof

Cited By (4)

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CN108264678A (en) * 2018-02-08 2018-07-10 青岛软盛塑业有限公司 Hydrophobic type bubble chamber film and preparation method thereof
CN108264678B (en) * 2018-02-08 2021-01-26 青岛软盛塑业有限公司 Hydrophobic bubble film and preparation method thereof
CN108485033A (en) * 2018-04-19 2018-09-04 温州市赢创新材料技术有限公司 A kind of insulation crosslinking packaging bubble chamber film and preparation method thereof
CN109384987A (en) * 2018-08-08 2019-02-26 桐乡市凯瑞包装材料有限公司 A kind of degradable bubble protection film and its processing method

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