CN207044843U - A kind of hollow template of polypropylene sandwich - Google Patents
A kind of hollow template of polypropylene sandwich Download PDFInfo
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- CN207044843U CN207044843U CN201720748335.0U CN201720748335U CN207044843U CN 207044843 U CN207044843 U CN 207044843U CN 201720748335 U CN201720748335 U CN 201720748335U CN 207044843 U CN207044843 U CN 207044843U
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- polypropylene
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Abstract
The utility model discloses a kind of hollow template of polypropylene sandwich, the hollow template includes epithelial layer, hypodermal layer and the sandwich layer between the epithelial layer and the hypodermal layer, the epithelial layer and the hypodermal layer are glass fiber reinforced polypropylene composite board, and the sandwich layer is hollow polypropylene sheet material.The hollow template of polypropylene sandwich of the present utility model has the performances such as high intensity, high rigidity and excellent shock resistance using glass fiber reinforced polypropylene composite board, effectively solve the rigidity of hollow polypropylene template and the deficiency of impact property, improve hollow polypropylene template strength, rigidity and shock resistance, the high/low temperature shrinkage factor of hollow polypropylene template is improved simultaneously, and improves access times and the life-span of the hollow template of polypropylene sandwich.
Description
Technical field
Building template technical field is the utility model is related to, in particular to a kind of hollow template of polypropylene sandwich.
Background technology
China is construction industry big country, and annual building template will consume the ten thousand stere of timber 900, and the scale of construction is huge.With
China adds《Paris climate agreement》, the forest reserves are progressively protected, and the supply of timber substantially reduces.As making for timber
With rich and influential family, building template necessarily by extreme shock.To solve this problem, it is proposed that " to mould Dai Mu " plan.Pass through
Plastics substitute timber as building template.
Various forms of plastic formworks such as PVC foam foam plate, polypropylene are developed for this and extrudes hollow template, injection mould
Plate etc..These templates are succeeded in developing, and are realized for us and " are provided very big possibility to mould Dai Mu ".But in the template of these exploitations
In, there are some characteristics of material in itself, cause the limitation used.PVC foam template is asked due to its temperature tolerance and thermal contraction
Topic, the mould that can cause to rise in use, shrink excessive, produce engineering safety and quality problems.
Due to the advantage of price, rapid growth has been commercially available in the polyacrylic hollow template of extrusion, is increasingly becoming city
The main flow template of field.
But it is cold to there is mutability, heat expansion due to its is rigid in the polyacrylic hollow template of extrusion in use
The practical problems such as contracting is serious, cracky, can also limit its following further genralrlization.
Utility model content
In view of this, a kind of hollow template of polypropylene sandwich provided by the utility model, preferably overcomes above-mentioned existing
The problem of technology is present and defect, there is high intensity, high rigidity and excellent using glass fiber reinforced polypropylene composite board
The performances such as shock resistance, effectively solve the rigidity of hollow polypropylene template and the deficiency of impact property, improve hollow polypropylene mould
Plate intensity, rigidity and shock resistance, while the high/low temperature shrinkage factor of hollow polypropylene template is improved, and improve polypropylene
The access times of the hollow template of sandwich and life-span.
A kind of hollow template of polypropylene sandwich, the hollow template include epithelial layer, hypodermal layer and positioned at the epithelial layers
Sandwich layer between the hypodermal layer, the epithelial layer and the hypodermal layer are glass fiber reinforced polypropylene composite board,
The sandwich layer is hollow polypropylene sheet material.
Further, the thickness of the epithelial layer and the hypodermal layer is 0.2~5mm.
Further, the thickness of the epithelial layer and the hypodermal layer is 0.4~3mm.
Further, the epithelial layer and the hypodermal layer are continuous glass fiber reinforced polypropylene composite board, long fibre
Tie up RPP composite board or short fiber reinforced composite polypropylene board.
Further, the thickness of the sandwich layer is 3~50mm.
Further, the thickness of the sandwich layer is 6~30mm.
Further, the transverse cross-sectional shape of the sandwich layer include one kind in " well " font, " V " font and " rice " font or
It is several.
Compared with prior art, the beneficial effect of the hollow template of polypropylene sandwich of the present utility model is：
(1), the hollow template of polypropylene sandwich of the present utility model uses the Sanming City being made up of epithelial layer, sandwich layer and hypodermal layer
Sandwich structure is controlled, and epithelial layer and hypodermal layer are glass fiber reinforced polypropylene composite board, have high intensity, height using it
The performances such as rigid and excellent shock resistance, effectively solve the rigidity of hollow polypropylene template and the deficiency of impact property, improve
Intensity, rigidity and the impact property of the hollow template of polypropylene sandwich, while improve the high/low temperature of the hollow template of polypropylene sandwich
Shrinkage, and improve access times and the life-span of the hollow template of polypropylene sandwich.
(2), further, the hollow template of polypropylene sandwich of the present utility model is strengthened by being added in the base material of sandwich layer
One or more in agent, fire retardant, antioxidant, light stabilizer and plasticizer, it can further lift polypropylene sandwich template
Intensity, the performance such as fire-retardant, anti-aging.
To enable above-mentioned purpose of the present utility model, feature and advantage to become apparent, preferred embodiment cited below particularly, and
Accompanying drawing appended by cooperation, is described in detail below.
Brief description of the drawings
, below will be to required use in embodiment in order to illustrate more clearly of the technical scheme of the utility model embodiment
Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by
Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also
To obtain other related accompanying drawings according to these accompanying drawings.
Fig. 1 is the vertical section structural representation of the hollow template of polypropylene sandwich of the present utility model；
Fig. 2 is the Structure of cross section schematic diagram of the hollow template of polypropylene sandwich of the present utility model.
Main element symbol description：
100- epithelial layers；
200- sandwich layers；
300- hypodermal layers.
Embodiment
For the ease of understanding the utility model, the hollow template of polypropylene sandwich is carried out below with reference to relevant drawings more complete
The description in face.The preferred embodiment of the hollow template of polypropylene sandwich is given in accompanying drawing.But the hollow template of polypropylene sandwich can
To realize in many different forms, however it is not limited to embodiment described herein.On the contrary, provide the mesh of these embodiments
Be to make the disclosure more thorough and comprehensive to the hollow template of polypropylene sandwich.
Hereinafter, the term " comprising " that can be used in various embodiments of the present utility model or " may include " instruction institute
Disclosed function, operation or the presence of element, and the increase of one or more functions, operation or element is not limited.In addition,
As used in various embodiments of the present utility model, term " comprising ", " having " and its cognate are meant only to represent specific
Feature, numeral, step, operation, the combination of element, component or foregoing item, and it is understood not to exclude one or first
A number of other features, numeral, step, operation, element, component or foregoing item combination presence or one or more spies of increase
Sign, numeral, step, operation, element, component or foregoing item combination possibility.
In various embodiments of the present utility model, stating "or" or " at least one in A or/and B " includes arranging simultaneously
Any combinations of the word gone out or all combinations." A or B " or " at least one in A or/and B " may include A, can for example, statement
Including B or it may include A and B both.
In description of the present utility model, it is to be understood that term " longitudinal direction ", " transverse direction ", " on ", " under ", " preceding ",
The orientation or position relationship of the instruction such as " rear ", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " be based on
Orientation shown in the drawings or position relationship, it is for only for ease of description the utility model and simplifies description, rather than instruction or dark
Show that the device of meaning or element there must be specific orientation, with specific azimuth configuration and operation, thus it is it is not intended that right
Limitation of the present utility model.In addition, term " first ", " second ", " the 3rd " etc. are only used for distinguishing description, and it is not intended that referring to
Show or imply relative importance.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present utility model.In this manual, to the schematic table of above-mentioned term
State and be not necessarily referring to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be
Combined in an appropriate manner in any one or more embodiments or example.
In description of the present utility model, unless otherwise prescribed with restriction, it is necessary to explanation, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be mechanical connection or the company of electrical connection or two element internals
It is logical, can be joined directly together, can also be indirectly connected by intermediary, for the ordinary skill in the art, can
To understand the concrete meaning of above-mentioned term as the case may be.Unless otherwise defined, all terms (bag being otherwise used herein
Include technical term and scientific terminology) have be generally understood that with various embodiment one skilled in the art of the present utility model
Implication identical implication.The term (term such as limited in the dictionary typically used) be to be interpreted as have with
Situational meaning identical implication in correlative technology field and it will be not construed as that there is Utopian implication or overly formal
Implication, unless being clearly defined in various embodiments of the present utility model.
Refering to Fig. 1 and Fig. 2, the utility model provides a kind of hollow template of polypropylene sandwich, and the hollow template includes
Epithelial layer 100, hypodermal layer 300 and the sandwich layer 200 between the epithelial layer 100 and the hypodermal layer 300, the epithelium
Layer 100 and the hypodermal layer 300 are glass fiber reinforced polypropylene composite board, and the sandwich layer 200 is polypropylene hollow-board
Material.
It should be noted that polypropylene (Polypropylene, abbreviation PP) is a kind of hemicrystalline thermoplastic.It is poly-
Propylene has higher impact resistance, and engineering properties is tough, resists a variety of organic solvents and acid and alkali corrosion.
Seen from the above description, the hollow template of polypropylene sandwich of the present utility model is used by epithelial layer 100, sandwich layer 200
The sandwich sandwich structure formed with hypodermal layer 300, and epithelial layer 100 and hypodermal layer 300 use glass fiber reinforced polyester third
Alkene composite board, there is the property such as high intensity, high rigidity and excellent shock resistance using glass fiber reinforced polypropylene composite board
Can, effectively solve the rigidity of hollow polypropylene template and the deficiency of impact property, improve hollow polypropylene template strength, rigidity
And shock resistance, while the high/low temperature shrinkage factor of hollow polypropylene template is improved, and improve polypropylene sandwich hollow mould
The access times of plate and life-span.
Preferably, in the utility model embodiment, the thickness of the epithelial layer 100 and the hypodermal layer 300 is 0.2~
5mm, such as 0.2mm, 0.4mm, 0.8mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm or 5mm.
Preferably, the thickness of the epithelial layer 100 and the hypodermal layer 300 is 0.4~3mm, as 0.4mm, 0.8mm,
1mm, 1.5mm, 2mm, 2.5mm or 3mm etc..
Preferably, in the utility model embodiment, the weight of glass fibre in the epithelial layer 100 and the hypodermal layer 300
It is 10~80% to measure content, such as 10%, 20%, 30%, 40%, 50%, 60%, 70% or 80%.
Preferably, the weight content of glass fibre is 30~60% in the epithelial layer 100 and the hypodermal layer 300, such as
30%th, 40%, 50% or 60% etc..
Preferably, the epithelial layer 100 and the hypodermal layer 300 be continuous glass fiber reinforced polypropylene composite board,
Long fibre enhanced polypropylene composite board or short fiber reinforced composite polypropylene board.
Above-mentioned continuous glass fiber reinforced polypropylene composite board can be using mixed fiber yarn fabric (such as OWENS CORNING) heated melt molding fabric enhancing composite polypropylene board, or using passing through continuous glass
TRPP unidirectional prepreg tape is through (0/90 °) in length and breadth compound sheet material.It should be noted that using fabric or 0/90 °
The advantages of composite sheet be it is compound after template there is equal intensity and rigidity in 0/90 ° of direction, be advantageous to mould material
The uniformity of performance.
Above-mentioned long fibre enhanced polypropylene composite board is glass fiber mat enhanced polypropylene plate material (GMT).Need to illustrate
, the fibre length of long fibre enhanced polypropylene composite is 7~10mm.
Above-mentioned short fiber reinforced polypropylene board is the polypropylene extrusion board of short fiber reinforced.It is it should be noted that short
The fibre length of TRPP composite is less than 1mm.
Above-mentioned continuous glass fiber reinforced polypropylene composite board, long fibre enhanced polypropylene composite board (LET-PP)
Or short fiber reinforced composite polypropylene board is respectively provided with good mechanical property and the performance such as low temperature resistant, antifatigue, with thermosetting
Property sheet molding compound compare, it has the advantages of repeatable processing and regeneration, and has good mobile performance, more easily
In compression molding.
Preferably, in the utility model embodiment, the base material of the sandwich layer 200 also includes reinforcing agent, fire retardant, antioxygen
One or more in agent, light stabilizer and plasticizer.
It is to be appreciated that reinforcing agent is also known as reinforcing material, refers to be added in resin and can closely be combined with resin, and
Make the mechanical mechanics property material that for example tensile strength, elongation at break and impact strength significantly improve of product.Above-mentioned enhancing
Agent can be enumerated as reinforcing agents such as talcum powder commonly used in the art, wollastonite, kaolin, glass fibre, calcium carbonate etc..
Above-mentioned fire retardant can be enumerated as magnesium hydroxide commonly used in the art, aluminium hydroxide, TDCPP, APP, eight bromines
Ether, triphenyl phosphate, HBCD, MPP, Firebrake ZB, TDE, encapsulated red phosphorus or TBC etc..
Antioxidant is also known as age resistor, can prevent from the aging of hollow polypropylene sheet material and extend it by adding antioxidant to make
Use the life-span.Above-mentioned antioxidant can be enumerated as 2,6- three-level butyl -4- methylphenols commonly used in the art, double (3,5- three-level fourths
Base -4- hydroxy phenyls) thioether, four (β-(3,5- three-level butyl -4- hydroxy phenyls) propionic acid) pentaerythritol esters etc..
Light stabilizer be it is a kind of can suppress or weaken degradation of the light to plastics, it is sunproof to improve pp material
Material, it can exclude or slow down photochemical reaction possibility, prevent or postpone the process of light aging, extend so as to reach in polypropylene
The purpose of hollow plate material service life.Above-mentioned light stabilizer can be enumerated as carbon black commonly used in the art, zinc oxide, titanium dioxide and zinc
Barium etc..
Above-mentioned plasticizer can be enumerated as phthalic acid two commonly used in the art (2- ethyl hexyls) ester etc..
Seen from the above description, by adding reinforcing agent, fire-retardant in the base material of sandwich layer 200 in the utility model embodiment
One or more in agent, antioxidant, light stabilizer and plasticizer, can further be lifted polypropylene sandwich template intensity,
Fire resistance, anti ageing property etc..
Preferably, in the utility model embodiment, the thickness of the sandwich layer 200 is 3~50mm, as 3mm, 6mm, 10mm,
15mm, 20mm, 25mm, 30mm, 35mm, 40mm, 45mm or 50mm etc..
Preferably, the thickness of the sandwich layer 200 is 6~30mm, such as 6mm, 9mm, 10mm, 15mm, 20mm, 25mm or
30mm etc..
Preferably, in the utility model embodiment, the transverse cross-sectional shape of the sandwich layer 200 includes but is not limited to " well " word
One or more in shape, " V " font and " rice " font.
The utility model additionally provides a kind of manufacture method of the hollow template of polypropylene sandwich, comprises the following steps：
Cooled down Step 1: first extruding polypropylene through screw extruder, cutting obtains hollow polypropylene sheet material.
Step 1: by the polypropylene composite materials sheet material of glass fiber reinforcement and hollow polypropylene sheet material according to glass fiber reinforcement
The mode of three layers of sandwich of polypropylene composite materials sheet material-hollow polypropylene sheet material-glass fiber reinforced polypropylene composite sheet is superimposed,
Heated melting, pressurized adhesion, cooling and shaping are the polypropylene that can obtain strengthening through glass fiber reinforced polypropylene composite material
The hollow template of sandwich.
In summary, the beneficial effect of the hollow template of polypropylene sandwich of the present utility model is：
(1), the hollow template of polypropylene sandwich of the present utility model is used by epithelial layer 100, sandwich layer 200 and hypodermal layer 300
The sandwich sandwich structure of composition, and epithelial layer 100 and hypodermal layer 300 use glass fiber reinforced polypropylene composite material,
There is the performances such as high intensity, high rigidity and excellent shock resistance using it, effectively solve rigidity and the punching of hollow polypropylene template
The deficiency of performance is hit, improves hollow polypropylene template strength, rigidity and shock resistance, while improves hollow polypropylene mould
The high/low temperature shrinkage factor of plate, and improve access times and the life-span of the hollow template of polypropylene sandwich.
(2), further, the hollow template of polypropylene sandwich of the present utility model in the base material of sandwich layer 200 by adding
One or more in reinforcing agent, fire retardant, antioxidant, light stabilizer and plasticizer, it can further lift polypropylene sandwich
The performance such as the intensity of template, fire-retardant, anti-aging.
Although more above used the term for representing structure, such as " epithelial layer ", " sandwich layer ", " hypodermal layer " etc., simultaneously
It is not excluded for the possibility using other terms.It is used for the purpose of more easily describing and explaining the utility model using these terms
Essence；Any additional limitation is construed as all to disagree with the utility model spirit.
It is described above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art can readily occur in change in the technical scope that the utility model discloses
Or replace, it should all cover within the scope of protection of the utility model.
Claims (7)
- A kind of 1. hollow template of polypropylene sandwich, it is characterised in that：The hollow template includes epithelial layer, hypodermal layer and positioned at institute The sandwich layer between epithelial layer and the hypodermal layer is stated, the epithelial layer and the hypodermal layer are that glass fiber reinforced polypropylene is answered Plywood material, the sandwich layer are hollow polypropylene sheet material.
- 2. the hollow template of polypropylene sandwich according to claim 1, it is characterised in that：The epithelial layer and the hypodermal layer Thickness be 0.2~5mm.
- 3. the hollow template of polypropylene sandwich according to claim 2, it is characterised in that：The epithelial layer and the hypodermal layer Thickness be 0.4~3mm.
- 4. the hollow template of polypropylene sandwich according to claim 1, it is characterised in that：The epithelial layer and the hypodermal layer Answered for continuous glass fiber reinforced polypropylene composite board, long fibre enhanced polypropylene composite board or short fiber reinforced polypropylene Plywood material.
- 5. the hollow template of polypropylene sandwich according to claim 1, it is characterised in that：The thickness of the sandwich layer be 3~ 50mm。
- 6. the hollow template of polypropylene sandwich according to claim 5, it is characterised in that：The thickness of the sandwich layer be 6~ 30mm。
- 7. the hollow template of polypropylene sandwich according to claim 6, it is characterised in that：The transverse cross-sectional shape bag of the sandwich layer Include the one or more in " well " font, " V " font and " rice " font.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720748335.0U CN207044843U (en) | 2017-06-26 | 2017-06-26 | A kind of hollow template of polypropylene sandwich |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720748335.0U CN207044843U (en) | 2017-06-26 | 2017-06-26 | A kind of hollow template of polypropylene sandwich |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107160788A (en) * | 2017-06-26 | 2017-09-15 | 江苏科悦新材料有限公司 | A kind of hollow template of polypropylene sandwich |
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- 2017-06-26 CN CN201720748335.0U patent/CN207044843U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107160788A (en) * | 2017-06-26 | 2017-09-15 | 江苏科悦新材料有限公司 | A kind of hollow template of polypropylene sandwich |
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