CN102514196A - Preparation method for micro-foaming plastic plate - Google Patents
Preparation method for micro-foaming plastic plate Download PDFInfo
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- CN102514196A CN102514196A CN2011103447047A CN201110344704A CN102514196A CN 102514196 A CN102514196 A CN 102514196A CN 2011103447047 A CN2011103447047 A CN 2011103447047A CN 201110344704 A CN201110344704 A CN 201110344704A CN 102514196 A CN102514196 A CN 102514196A
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Abstract
The invention discloses a preparation method for a micro-foaming plastic plate. The preparation method comprises the following steps of: preparing high-density polyethylene (HDPE), propene polymer (PP), an acceptable auxiliary material core layer, low-density polyethylene (LDPE), high filling master batches and acceptable auxiliary material surface layer blank bodies; forming a core layer blank body and the surface layer blank bodies into a core layer and surface layers respectively through an extruder; and attaching the surface layers on both sides of the core layer in a manner of coextruding three layers, wherein the acceptable auxiliary material is glass fiber and/or heavy calcium carbonate. When the preparation method is used for preparing the micro-foaming plastic plate, the sources of raw materials are wide, the strength and toughness of products are higher, and the deformation temperature is higher.
Description
Technical field
The present invention relates to preparation method's technical field of plastic plate, especially relate to a kind of micro-foamed plastic preparation of plates method.
Background technology
Along with the popularization gradually and the application of concrete skyscraper, framed building, steel building, and the construction of the single-layered of industrial premises, high-grade commerce and trade building, for the building board development provides the vast market space.General, building board has from heavy and light, install fast, efficiency of construction is high, can improve the anti-seismic performance of building, increases the building usable floor area, ornamental advantage such as strong.The building board current, that China uses is main with wooden boards all, causes the loss of a large amount of forests, also causes very serious environmental protection to threaten.
Plastic plate is the sheet material that uses plastics to make as raw material; Be applicable to building, chemical industry in a large number, have wear-resisting, vibration resistance, corrosion-resistant, recyclable, characteristics such as intensity is big, anti-aging, waterproof, protection against the tide, not yielding, repeated use and recyclable utilization again.But existing plastic plate has following defective more: 1, raw materials used quality requirement is high, causes manufacturing cost high; 2, take single layer structure, intensity, toughness and collapsible rate are all lower; 3, deformation temperature is low, and practicality is relatively poor.Therefore be necessary to improve.
Summary of the invention
Deficiency to above-mentioned prior art exists the purpose of this invention is to provide a kind of micro-foamed plastic preparation of plates method, and the raw material source is wide when utilizing the micro-foamed plastic sheet material that the method produces, and product intensity and toughness are all stronger, and deformation temperature is higher.
To achieve these goals, the technical scheme that the present invention adopted is: micro-foamed plastic preparation of plates method may further comprise the steps:
A), preparation sandwich layer and top layer idiosome:
---get each component of sandwich layer idiosome by weight percentage, wherein HDPE accounts for 30～40% of total amount, and PP accounts for 30～40% of total amount, and all the other are acceptable auxiliary; Each component is pulverized and mixed, and the sandwich layer idiosome is processed in heating;
---get each component of top layer idiosome by weight percentage, wherein LDPE accounts for 30～40% of total amount, and high filler parent granule accounts for 30～40% of total amount, and all the other are acceptable auxiliary; Each component is pulverized and mixed, and the top layer idiosome is processed in heating;
B), extrusion molding: respectively sandwich layer idiosome and top layer idiosome are formed sandwich layer and top layer through extruder respectively, wherein core layer thickness is 10～18mm, and the top layer is 0.5～4mm;
C), preparation finished product: the top layer is fitted in the sandwich layer both sides, fit, be prepared as finished product through three-layer co-extruded mode and sandwich layer.
6, micro-foamed plastic preparation of plates method according to claim 1 is characterized in that: the acceptable auxiliary said steps A) is glass and/or carbonic acid coarse whiting.
Said step B) forming temperature of extruder is 160-180 ℃ in, and hauling speed is 18～25 rev/mins; Step C) binding temperature is in: 160～180 ℃ of pressure are: 30～50mpa.
Said step B) forming temperature of extruder is 162～165 ℃ in, and hauling speed is 20 rev/mins; Step C) binding temperature is in: 170 ℃ of pressure are: 40mp.
The thickness of the sandwich layer that forms said step B) is 13mm, and the thickness on top layer is 1mm.
After adopting above-mentioned preparation method; The micro-foamed plastic sheet material that the present invention produced is compared the advantage that is had with prior art: 1, raw material use materials such as HDPE, LDPE and PP in a large number; These material sources are extensive; And can use the trade wastes such as waste or used plastics of recovery, turn waste into wealth, thereby reduce product cost greatly.Simultaneously,, can reclaim use more fully, further reduce raw-material cost for because of the permanent micro-foamed plastic sheet material of the present invention that damages that uses.Through experiment, the number of turnover can reach more than 50 times.2, made micro-foamed plastic sheet material adopts multi-layer compound structure, and than present traditional single layer structure pattern, obviously performances such as its rigidity, toughness, shrinkage factor have all had raising by a relatively large margin.Through conventional method experiment, the ratio of the micro-foamed plastic sheet material of the present invention 0.75 ± 0.05g/cm3 that weighs; Hot strength>=10Mpa; Impact strength>=12KJ/m
2Bending strength>=20Mpa; The modulus of elasticity in static bending>=600Mpa; Hold screw power>=800N; The sheet material holding capacity is 400～500kg/m
23, the deformation temperature of made micro-foamed plastic sheet material is increased to more than 60 ℃ from 40 ℃, and serviceability temperature must improve the practical value of plastic formwork greatly between-30～60 ℃, really reaches the purpose of applying.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified:
Fig. 1 is the sectional structure sketch map of micro-foamed plastic sheet material of the present invention.
Among the figure: 1, sandwich layer; 2, top layer.
The specific embodiment
The following stated is merely preferred embodiment of the present invention, does not therefore limit protection scope of the present invention.
Embodiment 1: see shown in Figure 1ly, micro-foamed plastic sheet material comprises the sandwich layer 1 and the top layer 2 that fits in the both side surface of sandwich layer 1 of plastics.Wherein, the thickness of sandwich layer 1 is 10～18mm, and the thickness on top layer is 0.5～4mm.Optimize, the thickness of sandwich layer 1 is 13mm, and the thickness on top layer is 1mm.
Embodiment 2: micro-foamed plastic preparation of plates method may further comprise the steps:
A), preparation sandwich layer and top layer idiosome:
---get each component of sandwich layer idiosome by weight, wherein HDPE is 30 parts, and PP accounts for 30 parts of total amount, and acceptable auxiliary is 40 parts of glasses; Each component is pulverized and mixed, and the sandwich layer idiosome is processed in heating;
---get each component of top layer idiosome by weight, wherein LDPE is 30 parts, 30 parts of high filler parent granules, and acceptable auxiliary is 40 parts of glasses; Each component is pulverized and mixed, and the top layer idiosome is processed in heating.
B), extrusion molding: respectively sandwich layer idiosome and top layer idiosome are formed sandwich layer and top layer through extruder respectively, wherein core layer thickness is 10mm, and the top layer is 0.5mm; Wherein, the forming temperature of extruder is 160 ℃, and hauling speed is 18 rev/mins.
C), preparation finished product: the top layer is fitted in the sandwich layer both sides, fit through three-layer co-extruded mode and sandwich layer, wherein, binding temperature is: 160 ℃ of pressure are: 30mpa forms finished product afterwards.
Embodiment 3: be with embodiment 2 differences: in the sandwich layer component steps A): HDPE is 40 parts, and PP is 40 parts, and acceptable auxiliary is 20 parts of glasses; In the component of top layer: LDPE is 40 parts, and high filler parent granule is 40 parts, and acceptable auxiliary is 20 parts of glasses.Step B) the wherein core layer thickness that forms in is 8mm, and the top layer is 4mm; The forming temperature of extruder is 180 ℃, and hauling speed is 25 rev/mins.Step C) binding temperature in is: 180 ℃ of pressure are: 50mpa.
Embodiment 4: be with embodiment 2 differences: the acceptable auxiliary steps A) respectively is 40 parts of carbonic acid coarse whitings.
Embodiment 5: be with embodiment 3 differences: the acceptable auxiliary steps A) respectively is 20 parts of carbonic acid coarse whitings.
Embodiment 6: be with embodiment 2 differences: the acceptable auxiliary steps A) respectively is 40 parts in the mixture of any proportioning of carbonic acid coarse whiting and glass.
Embodiment 7: be with embodiment 3 differences: the acceptable auxiliary steps A) respectively is 20 parts in the mixture of any proportioning of carbonic acid coarse whiting and glass.
Embodiment 8: be with embodiment 2 differences: in the sandwich layer component steps A): HDPE is 35 parts, and PP is 35 parts, and acceptable auxiliary is 30 parts in the mixture of any proportioning of carbonic acid coarse whiting and glass; In the component of top layer: LDPE is 35 parts, and high filler parent granule is 35 parts, and acceptable auxiliary is that the mixture of any proportioning of carbonic acid coarse whiting and glass is 30 parts.Step B) the wherein core layer thickness that forms in is 13mm, and the top layer is 1mm; The forming temperature of extruder is 162 ℃, and hauling speed is 22 rev/mins.Step C) binding temperature in is: 170 ℃ of pressure are: 40mpa.
Embodiment 9: be with embodiment 8 differences: the forming temperature of extruder is 165 ℃.
Embodiment 10: be with embodiment 8 differences: the forming temperature of extruder is 163 ℃.
Technology, the extruder of preparation idiosome be used for prior art, repeat no more here.
Claims (5)
1. micro-foamed plastic preparation of plates method may further comprise the steps:
A), preparation sandwich layer and top layer idiosome:
---get each component of sandwich layer idiosome by weight percentage, wherein HDPE accounts for 30～40% of total amount, and PP accounts for 30～40% of total amount, and all the other are acceptable auxiliary; Each component is pulverized and mixed, and the sandwich layer idiosome is processed in heating;
---get each component of top layer idiosome by weight percentage, wherein LDPE accounts for 30～40% of total amount, and high filler parent granule accounts for 30～40% of total amount, and all the other are acceptable auxiliary; Each component is pulverized and mixed, and the top layer idiosome is processed in heating;
B), extrusion molding: sandwich layer idiosome and top layer idiosome are formed sandwich layer and top layer through extruder respectively, and wherein core layer thickness is 10～18mm, and the top layer is 0.5～4mm;
C), preparation finished product: the top layer is fitted in the sandwich layer both sides, fit, be prepared as finished product through three-layer co-extruded mode and sandwich layer.
2. micro-foamed plastic preparation of plates method according to claim 1 is characterized in that: the acceptable auxiliary said steps A) is glass and/or carbonic acid coarse whiting.
3. micro-foamed plastic preparation of plates method according to claim 1 is characterized in that: the forming temperature of extruder is 160-180 ℃ said step B), and hauling speed is 18～25 rev/mins; Step C) binding temperature is in: 160～180 ℃ of pressure are: 30～50mpa.
4. micro-foamed plastic preparation of plates method according to claim 3 is characterized in that: the forming temperature of extruder is 162～165 ℃ said step B), and hauling speed is 20 rev/mins; Step C) binding temperature is in: 170 ℃ of pressure are: 40mp.
5. according to each described micro-foamed plastic preparation of plates method of claim 1 to 4, it is characterized in that: the thickness of the sandwich layer that forms said step B) is 13mm, and the thickness on top layer is 1mm.
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| CN2011103447047A CN102514196A (en) | 2011-11-04 | 2011-11-04 | Preparation method for micro-foaming plastic plate |
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| CN2011103447047A CN102514196A (en) | 2011-11-04 | 2011-11-04 | Preparation method for micro-foaming plastic plate |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104403207A (en) * | 2014-11-26 | 2015-03-11 | 洪湖市鄂王塑料制品有限公司 | Building plastic formwork and preparation method thereof |
| CN105904875A (en) * | 2016-05-31 | 2016-08-31 | 联扬塑胶(深圳)有限公司 | Light folder, light sheet and synthetic method of light sheet |
| CN105984101A (en) * | 2015-03-02 | 2016-10-05 | 吴江市博大电子科技有限公司 | Preparing method for composite material and composite material prepared through preparing method |
| CN109651703A (en) * | 2018-12-11 | 2019-04-19 | 陕西固安塑业科技有限公司 | A kind of fire-retardant hollow plastic building template of superficial layer foaming |
Citations (1)
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| CN101992576A (en) * | 2010-09-09 | 2011-03-30 | 南京聚锋新材料有限公司 | Functional type wood plastic composite (WPC) with light core-shell structure |
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2011
- 2011-11-04 CN CN2011103447047A patent/CN102514196A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101992576A (en) * | 2010-09-09 | 2011-03-30 | 南京聚锋新材料有限公司 | Functional type wood plastic composite (WPC) with light core-shell structure |
Non-Patent Citations (3)
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| 杨东洁: "《塑料制品成型工艺》", 31 March 2007 * |
| 杨东洁: "《塑料工艺与实用配方》", 31 March 2005 * |
| 杨鸣波，唐志玉: "《中国材料工程大典 第6卷 高分子材料工程 上》", 31 March 2006 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104403207A (en) * | 2014-11-26 | 2015-03-11 | 洪湖市鄂王塑料制品有限公司 | Building plastic formwork and preparation method thereof |
| CN105984101A (en) * | 2015-03-02 | 2016-10-05 | 吴江市博大电子科技有限公司 | Preparing method for composite material and composite material prepared through preparing method |
| CN105904875A (en) * | 2016-05-31 | 2016-08-31 | 联扬塑胶(深圳)有限公司 | Light folder, light sheet and synthetic method of light sheet |
| CN109651703A (en) * | 2018-12-11 | 2019-04-19 | 陕西固安塑业科技有限公司 | A kind of fire-retardant hollow plastic building template of superficial layer foaming |
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Application publication date: 20120627 |