CN109808273A - A kind of bending-resistant flexible Hollow Compound plate and its production technology - Google Patents
A kind of bending-resistant flexible Hollow Compound plate and its production technology Download PDFInfo
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- CN109808273A CN109808273A CN201910227596.1A CN201910227596A CN109808273A CN 109808273 A CN109808273 A CN 109808273A CN 201910227596 A CN201910227596 A CN 201910227596A CN 109808273 A CN109808273 A CN 109808273A
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Abstract
The present invention relates to a kind of bending-resistant flexible Hollow Compound plates, it is made from top to bottom of flexible top panel, sandwich of layers and flexible three layers of hot pressing of lower panel, flexible top panel and flexible lower panel are made of the pressing of three-layer co-extruded composite membrane respectively, each layer of flexible top panel and flexible lower panel is symmetrical centered on sandwich of layers, sandwich of layers uses three-decker, and sandwich of layers forms concave-convex bending by highest point of flexible top panel by minimum point of flexible lower panel.Preparation method of the present invention is simple, and step is easily operated, and obtained bending-resistant flexible Hollow Compound plate has high overall flexibility, ductility, paracentesis resistance and bending resistance, has the deformation of good buffering and friction characteristics.
Description
Technical field
The present invention relates to a kind of bending-resistant flexible Hollow Compound plate and its production technologies, more particularly to one kind to be applied to machine
The bending-resistant flexible Hollow Compound plate and its production technology of electric product transportation package protective lining plate belong to composite board preparation skill
Art field.
Background technique
With the continuous promotion of domestic electronic product especially automobile sales volume, to electronic product components transportation and packing
Demand is also increasing.The protection liner plate that tradition is used as electronic product components is all kinds of foamed materials, exists and is not durable, buffers
It is ineffective and the shortcomings that can not be recycled.In recent years, a kind of novel plastic hollow plate was gradually applied in packaging field, but
It is the protective lining and partition as electronic product components, the surface hardness of plastic hollow boards is higher, is easy to scratch components；
It is not easy to bend with electromechanical product component shape, therefore protection effect is also bad.There are also in automobile industry with hollow
It is compound to achieve the purpose that prevent from scratching that plate pastes EVA/ flannelette, but due to containing formaldehyde in stickup glue, both not environmentally,
The operating environment of worker is also poor, and this material is directly discarded cannot recycle after use, will cause severe environmental pollution.
The object of the invention is to develop a kind of new material, it was able to satisfy the requirement of electronic product component surface protection both come in replacing
The composite material of hollow plate and hollow plate and EVA/ flannelette, and there is certain bending resistance, it is adapted to components shape and does not advise
Then the characteristics of.The exploitation of this material has the recyclable multiplexing of realization, environmentally protective electronic product components transportation and packing
Significance.
Summary of the invention
The purpose of the present invention is overcoming the deficiencies in the prior art, a kind of bending-resistant flexible Hollow Compound plate is provided
And its production technology.
The present invention adopts the following technical scheme: a kind of bending-resistant flexible Hollow Compound plate, from top to bottom by flexibility above
Plate, sandwich of layers and flexible three layers of hot pressing of lower panel are made, and the flexibility top panel is with flexible lower panel respectively by three layers of different materials
The coextrusion-lamination film pressing of matter is made, and each layer of the flexibility top panel and flexible lower panel is symmetrically divided centered on sandwich of layers
Cloth, the sandwich of layers use three-decker, and the sandwich of layers is highest point using flexible lower panel as minimum point using flexible top panel
Form concave-convex bending.
Further, the flexible top panel is from top to bottom followed successively by modified PE layer or layer of modified PP, PP layers and MODIFIED PP
Layer.
Further, the thickness of the flexible top panel and flexible lower panel is 0.1 ~ 2mm.
Further, the sandwich of layers is followed successively by layer of modified PP, PP layers and layer of modified PP from top to bottom.
The preparation method of bending-resistant flexible Hollow Compound plate, includes the following steps:
(1) particulate material of flexible top panel, flexible lower panel is respectively put into the feed box of three-layer co-extruded sheet material machine respectively；
(2) temperature and extrusion pressure of each extruder is set separately；
(3) it is sequentially prepared to obtain the flexible top panel of bending-resistant flexible Hollow Compound plate and flexible lower panel；
(4) preparation structure is the sandwich of layers of layer of modified PP/PP layer/layer of modified PP, wherein layer of modified PP raw material weight accounting for 5 ~
10%, PP layers of raw material weight accounting are 80 ~ 90%, the three-decker of sandwich of layers be by by raw material heating melting at salivation sheet,
The technique through vacuum thermoforming is processed into again；
(5) flexible top panel and flexible lower panel are transmitted simultaneously, make flexible top panel and flexible lower panel respectively by upper preheating
Roller and lower pre- hot-rolling, and at the same time carrying out secondary heating, heating temperature of the drying tunnel to sandwich of layers using drying tunnel transmission sandwich of layers
Degree is 150 ~ 200 DEG C；
(6) by composite roll that the plate progress of intermediate preheating is compound, it is hollow that bending-resistant flexible is made under the pressure of 4 ~ 6MPa
Composite board.
Further, the extruder temperature of the sandwich of layers, 160 ~ 180 DEG C of the temperature of middle layer material extruder head, upper layer
With 190 ~ 210 DEG C of temperature of lower layer material extruder head.
Further, when the flexible top panel and flexibility lower panel, the temperature 160 ~ 180 of MODIFIED PP material extruder head
DEG C, 190 ~ 210 DEG C of the temperature of PP material extruder head, 200 ~ 220 DEG C of temperature of MODIFIED PP or modified PE material extruder head.
Further, the temperature of the pre- hot-rolling in the step (5) is 150 ~ 160 DEG C.
The present invention has the advantage that (1) preparation method of the present invention is simple, high production efficiency, production cost is low, using one
Secondary property moulding process greatly improves production efficiency, and flexible upper surface, sandwich of layers and flexible lower surface are compound using hot pressing in mould,
Centre is environmentally protective without reducing production cost using adhesive；
(2) the bending-resistant flexible Hollow Compound plate being prepared has high overall flexibility, ductility, paracentesis resistance and bending resistance
Folding endurance has the deformation of good buffering and frictional behavior, and the adjustable proportion of elastomeric material of plate surface is to change it
Intensity, hardness, to meet the requirement of shelter of different component surfaces.The bending-resistant flexible Hollow Compound plate can be used in
Manufacture protection base pad, the liner plate etc. in electromechanical product component packaging, also can be used in the bottom plate for manufacturing automobile trunk and
Instead of occasions such as the composite materials of hollow plate and EVA/ flannelette.
Detailed description of the invention
Fig. 1 is the schematic diagram of the section structure of bending-resistant flexible Hollow Compound plate of the invention.
Fig. 2 is the process flow chart of bending-resistant flexible Hollow Compound plate of the invention.
Appended drawing reference: flexible top panel 1, flexible lower panel 3, upper pre- hot-rolling 4, drying tunnel 5, lower pre- hot-rolling 6, is answered at sandwich of layers 2
Close roller 7.
Specific embodiment
Below with reference to specific attached drawing, the invention will be further described.
A kind of bending-resistant flexible Hollow Compound plate as shown in Figure 1:, from top to bottom by flexible top panel, sandwich of layers and soft
Property three layers of hot pressing of lower panel be made, flexible top panel and flexible lower panel are pressed by the coextrusion-lamination film of three layers of unlike material respectively
It is made, each layer of flexible top panel and flexible lower panel is symmetrical centered on sandwich of layers, and sandwich of layers uses three-decker, folder
Central layer forms concave-convex bending by highest point of flexible top panel by minimum point of flexible lower panel.Flexible top panel is from top to bottom
It is followed successively by modified PE layer or layer of modified PP, PP layers and layer of modified PP, the thickness of flexible top panel 1 and flexible lower panel 3 is 0.1
~ 2mm sandwich of layers successively includes layer of modified PP, PP layers and layer of modified PP from top to bottom.
The technological process of production of the invention includes flexible top panel 1, sandwich of layers 2 and flexible lower panel 3 as shown in Figure 2；On
Pre- hot-rolling 4；Heat the drying tunnel 5 of sandwich of layers；Under pre- hot-rolling 6；Composite roll 7；
Three kinds of particulate materials of flexible top panel 1, flexible lower panel 3 and sandwich of layers 2 are respectively put into three-layer co-extruded sheet material respectively
In the feed box of machine, for the extruder temperature of sandwich of layers 2,160 ~ 180 DEG C of temperature of middle layer PP material extruder head, upper layer and
190 ~ 210 DEG C of the temperature of lower-layer modified PP material extruder head, when for flexible top panel 1 and flexible lower panel 3, MODIFIED PP object
160 ~ 180 DEG C of temperature for expecting extruder head, 190 ~ 210 DEG C of the temperature of PP material extruder head, MODIFIED PP or modified PE material extruder head
200 ~ 220 DEG C of temperature, be sequentially prepared to obtain the flexible top panel and flexible lower panel of bending-resistant flexible Hollow Compound plate；
It is 80 ~ 90% that layer of modified PP raw material weight accounting, which is 5 ~ 10%, PP layers of raw material weight accounting, in the three-decker of sandwich of layers, folder
The three-decker of central layer is by the way that raw material heating melting to be processed at salivation sheet, then the technique through vacuum thermoforming.
Flexible top panel 1 and flexible lower panel 3 are transmitted simultaneously, make it respectively by upper pre- hot-rolling and lower pre- hot-rolling, and
Secondary heating is carried out using drying tunnel transmission sandwich of layers 2 simultaneously, for the heating and temperature control of sandwich of layers at 150 ~ 200 DEG C, process is compound
The plate of intermediate preheating is carried out compound, the obtained bending-resistant flexible Hollow Compound plate under the pressure of 4 ~ 6MPa by roller.
Claims (8)
1. a kind of bending-resistant flexible Hollow Compound plate, it is characterized in that: from top to bottom by flexible top panel (1), sandwich of layers (2) and
(3) the three layers of hot pressing of flexible lower panel are made, and the flexibility top panel (1) and flexible lower panel (3) are respectively by three layers of unlike material
Coextrusion-lamination film pressing be made, it is described flexibility top panel (1) and flexibility lower panel (3) each layer centered on sandwich of layers (2)
Symmetrical, the sandwich of layers (2) uses three-decker, and the sandwich of layers (2) is with flexible top panel (1) for highest point, with soft
Property lower panel (3) be minimum point form concave-convex bending.
2. bending-resistant flexible Hollow Compound plate as described in claim 1, it is characterized in that: the flexibility top panel (1) is by upper
Modified PE layer or layer of modified PP, PP layers and layer of modified PP are followed successively by under.
3. bending-resistant flexible Hollow Compound plate as claimed in claim 2, it is characterized in that: the flexibility top panel (1) and soft
The thickness of property lower panel (3) is 0.1 ~ 2mm.
4. bending-resistant flexible Hollow Compound plate as described in claim 1, it is characterized in that: the sandwich of layers (2) is from top to bottom
It is followed successively by layer of modified PP, PP layers and layer of modified PP.
5. the preparation method of bending-resistant flexible Hollow Compound plate described in claim 1, it is characterized in that: including the following steps:
(1) respectively by the particulate material of flexible top panel (1), flexible lower panel (3) be respectively put into three-layer co-extruded sheet material machine to
In hopper；
(2) temperature and extrusion pressure of each extruder is set separately；
(3) it is sequentially prepared to obtain the flexible top panel (1) of bending-resistant flexible Hollow Compound plate and flexible lower panel (3)；
(4) preparation structure is the sandwich of layers of layer of modified PP/PP layer/layer of modified PP, wherein layer of modified PP raw material weight accounting for 5 ~
10%, PP layers of raw material weight accounting are 80 ~ 90%, the three-decker of sandwich of layers be by by raw material heating melting at salivation sheet,
The technique through vacuum thermoforming is processed into again；
(5) flexible top panel (1) and flexible lower panel (3) are transmitted simultaneously, make flexible top panel (1) and flexible lower panel (3) point
Not by upper pre- hot-rolling (4) and lower pre- hot-rolling (6), and at the same time secondary heating is carried out using drying tunnel (5) transmission sandwich of layers, it is described
Drying tunnel (5) is 150 ~ 200 DEG C to the heating temperature of sandwich of layers (2)；
(6) plate of intermediate preheating is carried out to compound, the obtained bending-resistant flexible sky under the pressure of 4 ~ 6MPa by composite roll (7)
Heart composite board.
6. the preparation method of bending-resistant flexible Hollow Compound plate as claimed in claim 5, it is characterized in that: the sandwich of layers
Extruder temperature, 160 ~ 180 DEG C of the temperature of middle layer material extruder head, the temperature 190 ~ 210 of the upper and lower material extruder head
℃。
7. the preparation method of bending-resistant flexible Hollow Compound plate as claimed in claim 5, it is characterized in that: the flexibility is above
When plate and flexible lower panel, 160 ~ 180 DEG C of the temperature of MODIFIED PP material extruder head, the temperature 190 ~ 210 of PP material extruder head
DEG C, 200 ~ 220 DEG C of the temperature of MODIFIED PP or modified PE material extruder head.
8. the preparation method of bending-resistant flexible Hollow Compound plate as claimed in claim 5, it is characterized in that: the step (5)
In pre- hot-rolling temperature be 150 ~ 160 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910227596.1A CN109808273A (en) | 2019-03-25 | 2019-03-25 | A kind of bending-resistant flexible Hollow Compound plate and its production technology |
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| CN201910227596.1A CN109808273A (en) | 2019-03-25 | 2019-03-25 | A kind of bending-resistant flexible Hollow Compound plate and its production technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111843486A (en) * | 2020-07-24 | 2020-10-30 | 金煌杰 | Preparation process of bending-resistant triangular steel |
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| CN106310966A (en) * | 2016-09-29 | 2017-01-11 | 盐城海普润膜科技有限公司 | Inner support flat sheet membrane as well as preparation method and application thereof |
| CN106481028A (en) * | 2015-08-26 | 2017-03-08 | 黄石市三木塑料模具有限公司 | Synthetic resin watt |
| CN209756337U (en) * | 2019-03-25 | 2019-12-10 | 特耐王汇立塑料制品无锡有限公司 | bending-resistant flexible hollow composite board |
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| CN1516645A (en) * | 2001-06-15 | 2004-07-28 | ����-���ء���˹��ɭ | Laminates of films and methods and apparatus for their manufacture |
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| CN1726128A (en) * | 2002-12-13 | 2006-01-25 | 奥利-本特·拉斯马森 | Have improvement to the laminated thing of the film of bending resistance on all directions with and manufacture method and device |
| TWM447314U (en) * | 2012-09-03 | 2013-02-21 | Ling-Lang Zhan | Plastic laminated packing sheet material structure |
| CN106481028A (en) * | 2015-08-26 | 2017-03-08 | 黄石市三木塑料模具有限公司 | Synthetic resin watt |
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