CN103835494A - Nano-calcium highly-filled polypropylene anti-aging building formwork and technology thereof - Google Patents
Nano-calcium highly-filled polypropylene anti-aging building formwork and technology thereof Download PDFInfo
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- CN103835494A CN103835494A CN201210473785.5A CN201210473785A CN103835494A CN 103835494 A CN103835494 A CN 103835494A CN 201210473785 A CN201210473785 A CN 201210473785A CN 103835494 A CN103835494 A CN 103835494A
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- calcium
- filled polypropylene
- construction formwork
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- nanometer calcium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/88—Adding charges, i.e. additives
- B29B7/90—Fillers or reinforcements, e.g. fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/58—Component parts, details or accessories; Auxiliary operations
- B29B7/72—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/875—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling for achieving a non-uniform temperature distribution, e.g. using barrels having both cooling and heating zones
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
Abstract
The invention belongs to the field of composite materials, and relates to a nano-calcium highly-filled polypropylene building formwork, in particular to a nano-calcium highly-filled polypropylene anti-aging building formwork and the technology thereof. The nano-calcium highly-filled polypropylene anti-aging building formwork comprises a building formwork body made of nano-calcium highly-filled polypropylene composite materials, and the nano-calcium highly-filled polypropylene composite materials comprise polypropylene plastics, polyethylene substrates, nanoscale calcium carbonate, coupling agents, a flexibilizer and an ultraviolet light absorber. The nano-calcium highly-filled polypropylene anti-aging building formwork with the technology has the advantages of being low in cost, environmentally friendly, recyclable and the like. The manufacturing technology of the nano-calcium highly-filled polypropylene building formwork comprises the steps that materials are mixed at first, melt blending forming is conducted on the mixture at the temperature ranging from 160 DEG C to 180 DEG C, an extruder conducts extruding forming, cooling and cutting, and anti-aging enhanced calcium plastic particles are obtained; the enhanced calcium plastic particles are sent to a formwork profile extruder to be extruded to form formwork profiles, and the extruded formwork profiles are cooled in a vacuum mode, pulled and cut to be the nano-calcium highly-filled polypropylene anti-aging building formwork.
Description
Technical field
The present invention relates to field of compound material, be specifically related to a kind of polypropylene construction formwork.
Background technology
Existing construction formwork often adopts wooden template in a large number.Because wooden template is by processing after trees felling, therefore produces wooden template and need to expend a large amount of trees, very not environmental protection.Because wooden template access times are limited, need comparatively frequently to change in addition, therefore caused a large amount of timber wastes.
In addition, existing can replace wooden template be generally irony template, but there are equally a large amount of defects in irony template.Therefore need a kind ofly have that cost is low, environmental protection, the New Type Architecture Mode of advantage such as can reuse.
Summary of the invention
The object of the invention is to, provide a kind of nanometer calcium high filled polypropylene construction formwork, solve above technical problem.
The present invention also aims to, the high filled polypropylene construction formwork of a kind of nanometer calcium production technology is provided, solve above technical problem.
Technical problem solved by the invention can realize by the following technical solutions:
The high filled polypropylene construction formwork of nanometer calcium, comprises a construction formwork main body, it is characterized in that, the material of described construction formwork main body adopts the high filling polypropylene composite material of nanometer calcium;
The high filling polypropylene composite material of described nanometer calcium is polypropylene plastics, polyethylene matrix, 800 order ~ 2500 order nanoscale carbonic acid (weight) calcium, coupling agent, flexibilizer, ultra-violet absorber;
Wherein quality proportion is: 40～50 parts of polypropylene plastics, 5～10 parts of polyethylene matrixes, 800 20 ~ 50 parts of order ~ 2500 order nanoscale carbonic acid (weight) calcium, 0.5～1 part of coupling agent, 3 ~ 5 parts of flexibilizer, 3 ~ 5 parts of ultra-violet absorbers.
Adopt the construction formwork of above-mentioned technology, have that cost is low, environmental protection, can reuse, lightweight, save material, effectively reduce and cause the advantages such as distortion because of temperature difference.
In described construction formwork main body, be also distributed with fortifying fibre.Described fortifying fibre can adopt the fortifying fibre such as nylon fiber, glass fiber.Wherein preferred nylon fiber.
Described construction formwork main body has two plate faces, between two plate faces, is provided with honeycomb porous structure.To reduce weight, to save material.
Described honeycomb hole is the honeycomb hole of tube-shaped through hole shape.
Described construction formwork main body is provided with fiber holes, and described fiber holes is the honeycomb hole UNICOM with described tube-shaped through hole shape by least one plate face outside.Cement one side using the plate face by fiber holes UNICOM as close needs sizing when use.Moisture in cement can enter described honeycomb hole by described fiber holes, and then is dispersed into the external world, thereby impels the cement quick-hardening that needs sizing, shortens shaping time.
Described fiber holes can, by mixed foaming agent in material, obtain by foaming.
Also at least one that can be in two described plate faces with one deck air-permeable layer, described air-permeable layer is that a layer thickness is the high filled polypropylene layer of nanometer calcium that 1mm ~ 20mm is thick, preferred thickness is 2mm, and in the high filled polypropylene layer of described nanometer calcium, to have quality proportion be 100 parts of polypropylene to mixture; 8 ~ 18 parts of fortifying fibres; 10 ~ 30 parts, nanometer calcium carbonate; On the high filled polypropylene layer of described nanometer calcium, be furnished with air-vent.
Described air-vent is that the blowing agent foaming mixing in material produces.Moisture in cement can pass through described air-vent, and then is dispersed into the external world, thereby impels the cement quick-hardening that needs sizing, shortens shaping time.
Described air-permeable layer is attached on described plate face, so by fiber holes, air-vent by UNICOM outside honeycomb hole.Cement one side using the plate face by fiber holes UNICOM as close needs sizing when use.Moisture in cement can enter described honeycomb hole by described fiber holes, and then is dispersed into the external world, thereby impels the cement quick-hardening that needs sizing, shortens shaping time.
The high filled polypropylene construction formwork of nanometer calcium production technology, is characterized in that:
(1) material mixes, by quality proportion be: 40～50 parts of polypropylene plastics, 5～10 parts of polyethylene matrixes, 800 20 ~ 50 parts of order ~ 2500 order nanoscale carbonic acid (weight) calcium, 0.5～1 part of coupling agent, 3 ~ 5 parts of flexibilizer, 3 ~ 5 parts of ultra-violet absorbers, mix and obtain mixture;
(2) then mixture is made to material at 160-180 ℃ of melt blending;
(3) extruder for shaping, cooling, the anti-aging enhancing calcium of cutting gained plastic particles;
(4) finally anti-aging enhancing calcium plastic particles is sent into template sectional material extruder extrusion die section bar, the cavity temperature of template sectional material extruder is controlled at 190 ~ 200 ℃, the die head temperature of template sectional material extruder is controlled at 180-190 ℃, and the construction formwork section bar of extruding passes through vacuum cooled, traction, cuts to obtain product.
The present invention adopts the special expressing technique gained of nanoscale carbonic acid (weight) calcium wadding warp construction formwork in polypropylene, polyethylene blend material, the structural manufacturing process of construction formwork is sheet material micropore, be that building template middle part is provided with several ventilative heat elimination holes, be convenient to heat radiation and increase toughness.The impact strength of its product and physical and mechanical properties excellence, with low cost, anti-aging degree is high.
In step (1), in the material of mixing, also comprise 1 ~ 5 part of blowing agent.So that on the high filled polypropylene construction formwork of nanometer calcium, produce fiber holes by foaming, so that steam appears.
In step (4), extrusion die section bar can adopt double-deck extruding-out process, and one deck is main template body, and one deck is air-permeable layer, is mixed with 1 ~ 5 part of blowing agent, and forms air-vent by foaming in the mixed material of described air-permeable layer.
Can make main template body and air-permeable layer firmly combine closely by double-deck extruding-out process.
In step (6), adopt through hole expressing technique, in described main template body, form at least 5 through holes the formation honeycomb hole of arranging.To reduce weight, to save material.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the high filled polypropylene construction formwork of nanometer calcium;
Fig. 2 is the another kind of structural representation of the high filled polypropylene construction formwork of nanometer calcium.
The specific embodiment
For technological means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, further set forth the present invention below in conjunction with concrete diagram.
With reference to Fig. 1, the high filled polypropylene construction formwork of nanometer calcium, comprises a construction formwork main body 1, and the material of construction formwork main body 1 adopts the high filling polypropylene composite material of nanometer calcium.The high filling polypropylene composite material of nanometer calcium is polypropylene plastics, polyethylene matrix, 800 order ~ 2500 order nanoscale carbonic acid (weight) calcium, coupling agent, flexibilizer, ultra-violet absorber; Wherein quality proportion is: 40～50 parts of polypropylene plastics, 5～10 parts of polyethylene matrixes, 800 20 ~ 50 parts of order ~ 2500 order nanoscale carbonic acid (weight) calcium, 0.5～1 part of coupling agent, 3 ~ 5 parts of flexibilizer, 3 ~ 5 parts of ultra-violet absorbers.
Adopt the construction formwork of above-mentioned technology, have that cost is low, environmental protection, can reuse, lightweight, save material, effectively reduce and cause the advantages such as distortion because of temperature difference.
In construction formwork main body 1, be also distributed with fortifying fibre.Fortifying fibre can adopt the fortifying fibre such as nylon fiber, glass fiber.Wherein preferred nylon fiber.Construction formwork main body 1 has between 11, two plate faces 11 of two plate faces and is provided with honeycomb hole 2 structures.To reduce weight, to save material.Honeycomb hole 2 is the honeycomb hole 2 of tube-shaped through hole shape.Self thickness of plate face 11 is preferably at 1.5 ~ 3mm, further preferred 2mm.Preferred 10mm ~ the 30mm of distance between two plate faces 11, further preferred 15mm ~ 18mm.
Construction formwork main body 1 is provided with fiber holes, and fiber holes is by honeycomb hole 2 UNICOMs of at least one plate face 11 outside and tube-shaped through hole shape.Cement one side using the plate face 11 by fiber holes UNICOM as close needs sizing when use.Moisture in cement can enter honeycomb hole 2 by fiber holes, and then is dispersed into the external world, thereby impels the cement quick-hardening that needs sizing, shortens shaping time.
Fiber holes can, by mix more blowing agent in material, obtain by foaming.
With reference to Fig. 2, also at least one that can be in two plate faces 11 with one deck air-permeable layer 12, air-permeable layer 12 for a layer thickness be the high filled polypropylene layer of nanometer calcium that 1mm ~ 20mm is thick, preferred thickness is 2mm, in the high filled polypropylene layer of nanometer calcium, to have quality proportion be 100 parts of polypropylene to mixture; 8 ~ 18 parts of fortifying fibres; 10 ~ 30 parts, nanometer calcium carbonate; On the high filled polypropylene layer of nanometer calcium, be furnished with air-vent.
Air-vent is that the blowing agent foaming mixing in material produces.Moisture in cement can pass through air-vent, and then is dispersed into the external world, thereby impels the cement quick-hardening that needs sizing, shortens shaping time.
Air-permeable layer 12 is attached on plate face 11, and then passes through fiber holes, air-vent by honeycomb hole 2 outside UNICOMs.Cement one side using the plate face 11 by fiber holes UNICOM as close needs sizing when use.Moisture in cement can enter honeycomb hole 2 by fiber holes, and then is dispersed into the external world, thereby impels the cement quick-hardening that needs sizing, shortens shaping time.
The high filled polypropylene construction formwork of nanometer calcium production technology, is characterized in that:
(1) material mixes, by quality proportion be: 40～50 parts of polypropylene plastics, 5～10 parts of polyethylene matrixes, 800 20 ~ 50 parts of order ~ 2500 order nanoscale carbonic acid (weight) calcium, 0.5～1 part of coupling agent, 3 ~ 5 parts of flexibilizer, 3 ~ 5 parts of ultra-violet absorbers, mix and obtain mixture;
(2) then mixture is made to material at 160-180 ℃ of melt blending;
(3) extruder for shaping, cooling, the anti-aging enhancing calcium of cutting gained plastic particles;
(4) finally anti-aging enhancing calcium plastic particles is sent into template sectional material extruder extrusion die section bar, the cavity temperature of template sectional material extruder is controlled at 190 ~ 200 ℃, the die head temperature of template sectional material extruder is controlled at 180-190 ℃, and the construction formwork section bar of extruding passes through vacuum cooled, traction, cuts to obtain product.
The present invention adopts the special expressing technique gained of nanoscale carbonic acid (weight) calcium wadding warp construction formwork in polypropylene, polyethylene blend material, the structural manufacturing process of construction formwork is sheet material micropore, be that building template middle part is provided with several ventilative heat elimination holes, be convenient to heat radiation and increase toughness.The impact strength of its product and physical and mechanical properties excellence, with low cost, anti-aging degree is high.
In step (1), in the material of mixing, also comprise 1 ~ 5 part of blowing agent.So that on the high filled polypropylene construction formwork of nanometer calcium, produce fiber holes by foaming, so that steam appears.
In step (4), extrusion die section bar can adopt double-deck extruding-out process, and one deck is main template body, and one deck is air-permeable layer 12, is mixed with 1 ~ 5 part of blowing agent, and forms air-vent by foaming in the mixed material of air-permeable layer 12.
Can make main template body and air-permeable layer 12 firmly combine closely by double-deck extruding-out process.
In step (6), adopt through hole expressing technique, in main template body, form at least 5 through holes, and the formation honeycomb hole 2 of arranging.To reduce weight, to save material.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and manual, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (10)
1. the high filled polypropylene construction formwork of nanometer calcium, comprises a construction formwork main body, it is characterized in that, the material of described construction formwork main body adopts the high filling polypropylene composite material of nanometer calcium;
The high filling polypropylene composite material of described nanometer calcium is polypropylene plastics, polyethylene matrix, 800 order ~ 2500 order nanometer grade calcium carbonates, coupling agent, flexibilizer, ultra-violet absorber;
Wherein quality proportion is: 40～50 parts of polypropylene plastics, 5～10 parts of polyethylene matrixes, 800 20 ~ 50 parts of order ~ 2500 order nanometer grade calcium carbonates, 0.5～1 part of coupling agent, 3 ~ 5 parts of flexibilizer, 3 ~ 5 parts of ultra-violet absorbers.
2. the high filled polypropylene construction formwork of nanometer calcium according to claim 1, is characterized in that: in described construction formwork main body, be also distributed with fortifying fibre, described fortifying fibre adopts nylon fiber.
3. the high filled polypropylene construction formwork of nanometer calcium according to claim 1, is characterized in that: in described construction formwork main body, be also distributed with fortifying fibre, described fortifying fibre adopts glass fiber.
4. according to the high filled polypropylene construction formwork of nanometer calcium described in claim 1,2 or 3, it is characterized in that: described construction formwork main body has two plate faces, between two plate faces, be provided with honeycomb porous structure.
5. the high filled polypropylene construction formwork of nanometer calcium according to claim 4, is characterized in that: described construction formwork main body is provided with fiber holes, and described fiber holes is the honeycomb hole UNICOM with described tube-shaped through hole shape by least one plate face outside; Described fiber holes, by mixed foaming agent in material, obtains by foaming.
6. the high filled polypropylene construction formwork of nanometer calcium according to claim 4, it is characterized in that: at least one in two described plate faces, have one deck air-permeable layer, described air-permeable layer is that a layer thickness is the high filled polypropylene layer of nanometer calcium that 1mm ~ 20mm is thick, and in the high filled polypropylene layer of described nanometer calcium, to have quality proportion be 100 parts of polypropylene to mixture; 8 ~ 18 parts of fortifying fibres; 10 ~ 30 parts, nanometer calcium carbonate; On the high filled polypropylene layer of described nanometer calcium, be furnished with air-vent.
7. the high filled polypropylene construction formwork of nanometer calcium according to claim 6, is characterized in that: described air-permeable layer is attached on described plate face, so by fiber holes, air-vent by UNICOM outside honeycomb hole.
8. the high filled polypropylene construction formwork of nanometer calcium production technology, is characterized in that:
(1) material mixes, by quality proportion be: 40～50 parts of polypropylene plastics, 5～10 parts of polyethylene matrixes, 800 20 ~ 50 parts of order ~ 2500 order nanometer grade calcium carbonates, 0.5～1 part of coupling agent, 3 ~ 5 parts of flexibilizer, 3 ~ 5 parts of ultra-violet absorbers, mix and obtain mixture;
(2) then mixture is made to material at 160-180 ℃ of melt blending;
(3) extruder for shaping, cooling, the anti-aging enhancing calcium of cutting gained plastic particles;
(4) finally anti-aging enhancing calcium plastic particles is sent into template sectional material extruder extrusion die section bar, the cavity temperature of template sectional material extruder is controlled at 190 ~ 200 ℃, the die head temperature of template sectional material extruder is controlled at 180-190 ℃, and the construction formwork section bar of extruding passes through vacuum cooled, traction, cuts to obtain product.
9. the high filled polypropylene construction formwork of nanometer calcium according to claim 8 production technology, is characterized in that: in step (1), also comprise 1 ~ 5 part of blowing agent in the material of mixing; On the high filled polypropylene construction formwork of nanometer calcium, produce fiber holes by foaming, so that steam appears.
10. the high filled polypropylene construction formwork of nanometer calcium according to claim 8 production technology, it is characterized in that: in step (4), in extrusion die section bar process, can adopt double-deck extruding-out process, one deck is main template body, one deck is air-permeable layer, in the mixed material of described air-permeable layer, be mixed with 1 ~ 5 part of blowing agent, and form air-vent by foaming.
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| CN201210473785.5A CN103835494A (en) | 2012-11-20 | 2012-11-20 | Nano-calcium highly-filled polypropylene anti-aging building formwork and technology thereof |
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Cited By (6)
| 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 |
| CN104761888A (en) * | 2015-03-26 | 2015-07-08 | 湖州科达化工燃料有限公司 | Ultra-strong plastic building template and preparation method thereof |
| CN104844934A (en) * | 2015-04-30 | 2015-08-19 | 南京博方生物科技有限公司 | Composite mine-plastic material and using method thereof |
| CN105419083A (en) * | 2015-11-20 | 2016-03-23 | 福建海源新材料科技有限公司 | Flame-retardant building formwork and manufacturing method thereof |
| CN111534006A (en) * | 2020-06-23 | 2020-08-14 | 上海恳大实业有限公司 | Environment-friendly sunshade resin material, environment-friendly sunshade fence and preparation method thereof |
| CN115306143A (en) * | 2022-09-13 | 2022-11-08 | 安徽镝伟达新材料科技有限公司 | Reinforced hollow plastic composite template for pouring concrete |
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2012
- 2012-11-20 CN CN201210473785.5A patent/CN103835494A/en active Pending
Cited By (6)
| 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 |
| CN104761888A (en) * | 2015-03-26 | 2015-07-08 | 湖州科达化工燃料有限公司 | Ultra-strong plastic building template and preparation method thereof |
| CN104844934A (en) * | 2015-04-30 | 2015-08-19 | 南京博方生物科技有限公司 | Composite mine-plastic material and using method thereof |
| CN105419083A (en) * | 2015-11-20 | 2016-03-23 | 福建海源新材料科技有限公司 | Flame-retardant building formwork and manufacturing method thereof |
| CN111534006A (en) * | 2020-06-23 | 2020-08-14 | 上海恳大实业有限公司 | Environment-friendly sunshade resin material, environment-friendly sunshade fence and preparation method thereof |
| CN115306143A (en) * | 2022-09-13 | 2022-11-08 | 安徽镝伟达新材料科技有限公司 | Reinforced hollow plastic composite template for pouring concrete |
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Application publication date: 20140604 |