CN107880435A - A kind of PVC board stake and preparation method thereof of retaining and protection - Google Patents
A kind of PVC board stake and preparation method thereof of retaining and protection Download PDFInfo
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- CN107880435A CN107880435A CN201711136130.8A CN201711136130A CN107880435A CN 107880435 A CN107880435 A CN 107880435A CN 201711136130 A CN201711136130 A CN 201711136130A CN 107880435 A CN107880435 A CN 107880435A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention provides a kind of retaining and protection PVC board stake and preparation method thereof in technical field of civil engineering, PVC board stake of the invention is made up of the raw material of following quality proportioning：PVC100 parts, 20 40 parts of calcium carbonate, 12 parts of lubricant, 4 10 parts of toughener, 48 parts of Ca Zn compound stabilizers, 02 parts of light stabilizer；The rigidity of present invention lifting sheet pile, improves anti-ultraviolet ageing performance, cost is low.
Description
Technical field
The invention belongs to technical field of civil engineering, more particularly to a kind of retaining and protection PVC board stake and preparation method thereof.
Background technology
China is the country that a major natural disasters take place frequently, and sheet pile is applied in fill counter dam, keeps out dust storm, keeps out mud
Rock glacier, anti-flood, anti-collapse, anti-snowslide etc. have played huge effect, can be effectively reduced disaster and be brought to the mankind
Loss.
Traditional sheet pile can be divided into pile plank, steel sheet pile, reinforced concrete sheet pile etc. by material, and these materials have one
The defects of determining, pile plank low intensity, is easily degraded by microorganism attack, and steel sheet pile is high with reinforced concrete sheet pile cost, manpower
Mechanical force cost is high, perishable.
In the prior art, it is sheet pile made of main material a kind of use PVC occur, and it is present, and cost is higher, and rigidity is small
The problem of.
The content of the invention
For in the prior art the defects of, it is an object of the invention to overcome above-mentioned weak point of the prior art, carry
For a kind of retaining and protection PVC board stake and preparation method thereof, solves the technical problem that cost is high and rigidity is small, the present invention prepares
The sheet pile rigidity come is big, and cost is low.
The object of the present invention is achieved like this：A kind of retaining and protection PVC board stake, by the raw material system of following quality proportioning
Into：
。
In order to improve the friction between polyvinyl chloride resin and between polyvinyl chloride resin and extruder, the lubricant is stearic for interior lubrication
The sour compound with outer lubrication Tissuemat E；The setting of lubricant prevents that PVC extruder occurs by polyvinyl chloride resin extrusion
Hot-spot is decomposed.
In order to further improve the impact resistance of the sheet pile prepared, the toughener is MBS and CPE compounds；
The addition of this toughener improves the toughness of sheet pile, improves its impact resistance.
In order to further improve the resistance to ultraviolet ageing resistance of sheet pile, the light stabilizer is etocrilene.
The retaining and protection preparation method of PVC board stake of the present invention, comprises the following steps：
（1）Raw material is mixed, is warming up to 120-140 DEG C, is discharged in the mixer of jacketed water cooling, continues to mix, to temperature
Degree drops to 45 ± 5 DEG C, discharge to feed bin；
（2）Single screw extrusion：Material in feed bin is finally produced through Single screw extrusion, Vacuum shaping, water-cooled shaping, cutting
Product, wherein, Single screw extrusion molding control condition is,
1 195 ± 5 DEG C of area's temperature, 2 190 ± 5 DEG C of area's temperature, 3 190 ± 5 DEG C of area's temperature, 4 190 ± 5 DEG C of area's temperature, 5 area's temperature
185 ± 5 DEG C, 165 ± 5 DEG C of linkage section temperature, die temperature is at 180-200 DEG C, 860 ± 20r/min of rate of feeding, extrusion speed
500 ± 10r/min is spent, 175 ± 5 r of hauling speed/min, Vacuum shaping section vacuum is 0.5-0.7Mpa, cooling water temperature
For 15-20 DEG C.
The present invention has the advantages that compared with prior art：
The retaining and protection of the present invention mainly based on PVC, is added toughener and improves its impact flexibility, add light with PVC board stake
Stabilizer, not only improves the ultraviolet aging resistance of sheet pile, and has supplement effect to the mechanical strength of sheet pile；It is prepared by the present invention
Sheet pile rigidity out is bigger, nontoxic, environmentally friendly, and ultraviolet-resistant performance is good, can use out of doors for a long time, the calcium carbonate of addition compared with
It is more, reduce cost；It can be applied in the support work of low-intensity, low stress and high rigidity requirement, such as farmland water conservancy works, municipal administration
The fields such as engineering.
Brief description of the drawings
Fig. 1 is the forward and backward tensile strength variation diagram of PVC agings prepared under different etocrilene additions in the present invention.
Fig. 2 is the PVC elastic modulus change figures under different etocrilene additions before and after aging in the present invention.
Fig. 3 is PVC elongation at break variation diagrams before and after aging under different etocrilene additions in the present invention.
Embodiment
Illustrate the present invention below by way of specific embodiment, but be not limited to specific examples presented below.
Embodiment 1
Prepare the composition of raw materials of PVC board stake：PVC100 parts, 20 parts of calcium carbonate, 0.5 part of stearic acid, 0.5 part of Tissuemat E, CPE2
Part, MBS2 parts, 4 parts of Ca-Zn compound stabilizers.
Prepare PVC board stake method be：
（1）PVC matrix is mixed in homogenizer with corresponding additive, 120 DEG C is warming up to, is discharged to jacketed water cooling
In mixer, continue to mix, drop to 40 DEG C to temperature, discharge to feed bin；
（2）Single screw extrusion：Material in feed bin is finally produced through Single screw extrusion, Vacuum shaping, water-cooled shaping, cutting
Product, wherein extrusion molding control condition：
1 190 DEG C of area's temperature, 2 185 DEG C of area's temperature, 3 185 DEG C of area's temperature, 4 185 DEG C of area's temperature, 5 180 DEG C of area's temperature, linkage section temperature
160 DEG C of degree, die temperature is at 180 DEG C, rate of feeding 840r/min, extruded velocity 490r/min, hauling speed 170r/
Min, Vacuum shaping section vacuum are 0.5Mpa, and cooling water temperature is 15 DEG C.
Embodiment 2
Prepare the composition of raw materials of PVC board stake：PVC100 parts, 40 parts of calcium carbonate, 0.5 part of stearic acid, 0.5 part of Tissuemat E, CPE 6
Part, 4 parts of MBS, 8 parts of Ca-Zn compound stabilizers, 2 parts of etocrilene.
Prepare PVC board stake method be：
（1）PVC matrix is mixed in homogenizer with corresponding additive, 120 DEG C is warming up to, is discharged to jacketed water cooling
In mixer, continue to mix, drop to 40 DEG C to temperature, discharge to feed bin；
（2）Single screw extrusion：Material in feed bin is finally produced through Single screw extrusion, Vacuum shaping, water-cooled shaping, cutting
Product, wherein extrusion molding control condition：
1 200 DEG C of area's temperature, 2 195 DEG C of area's temperature, 3 195 DEG C of area's temperature, 4 195 DEG C of area's temperature, 5 190 DEG C of area's temperature, linkage section temperature
170 DEG C of degree, die temperature is at 200 DEG C, rate of feeding 880r/min, extruded velocity 510r/min, hauling speed 180r/
Min, Vacuum shaping section vacuum are 0.7Mpa, and cooling water temperature is 20 DEG C.
Embodiment 3
Prepare the composition of raw materials of PVC board stake：PVC100 parts, 35 parts of calcium carbonate, 1.5 parts of stearic acid, 0.5 part of Tissuemat E, CPE 6
Part, 4 parts of MBS, 6 parts of Ca-Zn compound stabilizers, 1.5 parts of etocrilene.
Prepare PVC board stake method be：
（1）PVC matrix is mixed in homogenizer with corresponding additive, 130 DEG C is warming up to, is discharged to jacketed water cooling
In mixer, continue to mix, drop to 45 DEG C to temperature, discharge to feed bin；
（2）Single screw extrusion：Material in feed bin is finally produced through Single screw extrusion, Vacuum shaping, water-cooled shaping, cutting
Product, wherein extrusion molding control condition：
1 195 DEG C of area's temperature, 2 190 DEG C of area's temperature, 3 190 DEG C of area's temperature, 4 190 DEG C of area's temperature, 5 185 DEG C of area's temperature, linkage section temperature
165 DEG C of degree, die temperature is at 190 DEG C, rate of feeding 860r/min, extruded velocity 500r/min, hauling speed 175r/
Min, Vacuum shaping section vacuum are 0.6Mpa, and cooling water temperature is 18 DEG C.
Embodiment 4
Prepare the composition of raw materials of PVC board stake：PVC100 parts, 30 parts of calcium carbonate, 1.2 parts of stearic acid, 0.5 part of Tissuemat E, CPE 4
Part, 2 parts of MBS, 6 parts of Ca-Zn compound stabilizers, 1 part of etocrilene.
Prepare PVC board stake method be：
（1）PVC matrix is mixed in homogenizer with corresponding additive, 130 DEG C is warming up to, is discharged to jacketed water cooling
In mixer, continue to mix, drop to 45 DEG C to temperature, discharge to feed bin；
（2）Single screw extrusion：Material in feed bin is finally produced through Single screw extrusion, Vacuum shaping, water-cooled shaping, cutting
Product, wherein extrusion molding control condition：
1 190 DEG C of area's temperature, 2 188 DEG C of area's temperature, 3 188 DEG C of area's temperature, 4 188 DEG C of area's temperature, 5 183 DEG C of area's temperature, linkage section temperature
165 DEG C of degree, die temperature is at 185 DEG C, rate of feeding 870r/min, extruded velocity 510r/min, hauling speed 177r/
Min, Vacuum shaping section vacuum are 0.6Mpa, and cooling water temperature is 18 DEG C.
Embodiment 5
Prepare the composition of raw materials of PVC board stake：PVC100 parts, 20 parts of calcium carbonate, 1.5 parts of stearic acid, 0.5 part of Tissuemat E, CPE 2
Part, 2 parts of MBS, 4 parts of Ca-Zn compound stabilizers, 1.5 parts of etocrilene.
Prepare PVC board stake method be：
（1）PVC matrix is mixed in homogenizer with corresponding additive, 140 DEG C is warming up to, is discharged to jacketed water cooling
In mixer, continue to mix, drop to 45 DEG C to temperature, discharge to feed bin；
（2）Single screw extrusion：Material in feed bin is finally produced through Single screw extrusion, Vacuum shaping, water-cooled shaping, cutting
Product, wherein extrusion molding control condition：
1 190 DEG C of area's temperature, 2 192 DEG C of area's temperature, 3 191 DEG C of area's temperature, 4 190 DEG C of area's temperature, 5 185 DEG C of area's temperature, linkage section temperature
165 DEG C of degree, die temperature is at 190 DEG C, rate of feeding 860r/min, extruded velocity 500r/min, hauling speed 175r/
Min, Vacuum shaping section vacuum are 0.6Mpa, and cooling water temperature is 17 DEG C.
Embodiment 6
Prepare the composition of raw materials of PVC board stake：PVC100 parts, 25 parts of calcium carbonate, 1 part of stearic acid, 0.5 part of Tissuemat E, CPE 6
Part, 2 parts of MBS, 6 parts of Ca-Zn compound stabilizers, 1.5 parts of etocrilene.
Prepare PVC board stake method be：
（1）PVC matrix is mixed in homogenizer with corresponding additive, 125 DEG C is warming up to, is discharged to jacketed water cooling
In mixer, continue to mix, drop to 45 DEG C to temperature, discharge to feed bin；
（2）Single screw extrusion：Material in feed bin is finally produced through Single screw extrusion, Vacuum shaping, water-cooled shaping, cutting
Product, wherein extrusion molding control condition：
1 197 DEG C of area's temperature, 2 193 DEG C of area's temperature, 3 193 DEG C of area's temperature, 4 192 DEG C of area's temperature, 5 186 DEG C of area's temperature, linkage section temperature
168 DEG C of degree, die temperature is at 198 DEG C, rate of feeding 865r/min, extruded velocity 510r/min, hauling speed 177r/
Min, Vacuum shaping section vacuum are 0.6Mpa, and cooling water temperature is 19 DEG C.
Embodiment 7
Prepare the composition of raw materials of PVC board stake：PVC100 parts, 35 parts of calcium carbonate, 1.5 parts of stearic acid, 0.5 part of Tissuemat E, CPE 5
Part, 3 parts of MBS, 8 parts of Ca-Zn compound stabilizers, 1.2 parts of etocrilene.
Prepare PVC board stake method be：
（1）PVC matrix is mixed in homogenizer with corresponding additive, 130 DEG C is warming up to, is discharged to jacketed water cooling
In mixer, continue to mix, drop to 50 DEG C to temperature, discharge to feed bin；
（2）Single screw extrusion：Material in feed bin is finally produced through Single screw extrusion, Vacuum shaping, water-cooled shaping, cutting
Product, wherein extrusion molding control condition：
1 190 DEG C of area's temperature, 2 187 DEG C of area's temperature, 3 188 DEG C of area's temperature, 4 189 DEG C of area's temperature, 5 187 DEG C of area's temperature, linkage section temperature
167 DEG C of degree, die temperature is at 192 DEG C, rate of feeding 860r/min, extruded velocity 500r/min, hauling speed 175r/
Min, Vacuum shaping section vacuum are 0.5Mpa, and cooling water temperature is 20 DEG C.
Embodiment 8
Prepare the composition of raw materials of PVC board stake：PVC100 parts, 40 parts of calcium carbonate, 1.6 parts of stearic acid, 0.4 part of Tissuemat E, CPE 6
Part, 2 parts of MBS, 6 parts of Ca-Zn compound stabilizers, 1.5 parts of etocrilene.
Prepare PVC board stake method be：
（1）PVC matrix is mixed in homogenizer with corresponding additive, 135 DEG C is warming up to, is discharged to jacketed water cooling
In mixer, continue to mix, drop to 50 DEG C to temperature, discharge to feed bin；
（2）Single screw extrusion：Material in feed bin is finally produced through Single screw extrusion, Vacuum shaping, water-cooled shaping, cutting
Product, wherein extrusion molding control condition：
1 195 DEG C of area's temperature, 2 192 DEG C of area's temperature, 3 189 DEG C of area's temperature, 4 189 DEG C of area's temperature, 5 187 DEG C of area's temperature, linkage section temperature
167 DEG C of degree, die temperature is at 190 DEG C, rate of feeding 865r/min, extruded velocity 505r/min, hauling speed 175r/
Min, Vacuum shaping section vacuum are 0.7Mpa, and cooling water temperature is 17 DEG C.
Table 1：The mechanical experimental results of embodiment product
Table 2：Section Example product ultraviolet light and aging experimental performance data
Ultraviolet light and aging condition：Ultraviolet irradiation intensity 0.76W/m2@340nm, 60 DEG C of test temperature.
Comparative example 1 and embodiment 5, it can be found that anti ultraviolet agent etocrilene not only has good anti-ultraviolet ageing
Effect, also has supplement effect to PVC mechanical strength.
In all of above embodiment product, the synthetic method of etocrilene is：
Thermometer, water knockout drum, condenser pipe are loaded onto in 100mL three-necked flask, adds 6mL（56mmol）Ethyl cyanoacetate and 5mL
The catalyst solution of preparation（Prepared using acetic acid and ammonium acetate）, stir 0.5 hour, then add 10.9g（60mmol）Two
Benzophenone, 40mL normal heptanes, it is slowly heated, stirring so that benzophenone all dissolves, reflux water-dividing 3 hours, then with automatic
5mL catalyst solution is added dropwise in syringe, is added dropwise within 2 hours, is further continued for back flow reaction to overnight；Carry out TLC monitoring reactions
（Solvent V ethyl acetate：V petroleum ether=1:10）, reaction finishes, after question response liquid naturally cools to room temperature, into reaction system
30mL mixture of ice and water is added, stands and separates out crystal, suction filtration obtains crude product, then recrystallized with absolute ethyl alcohol, filters dry
It is dry, obtain product etocrilene.
The synthetic route of etocrilene is as follows：
。
PVC addition etocrilene ageing properties tests are as follows：
Anti-aging test is carried out according to national standard GB/T16422.3-1997.By filled PVC plastics, irradiate, survey under uviol lamp
The change of its tensile property is tried, before and after contrast filling, influence of the loading to PVC ageing resistaces, to evaluate the anti-of etocrilene
Ultraviolet effect.
Using 130 DEG C of double roller mills, after PVC embraces rollers, cut, mill 3-5 times, by 200 DEG C of the sheet material of mill, under 15MPa
Hot pressing 5min, 15MPa cold pressing 5min obtains PVC board.
Prepared PVC board is irradiated into 24h under 365nm ultraviolets（12h turn-overs are once）After test its mechanical property
Change.
The raw material constituent of PVC board stake when ageing properties are tested is as shown in table 3：
The raw material constituent of table 3
Tension test is carried out to PVC board stake using cupping machine, obtains the different-effect figure shown in Fig. 1-Fig. 3；Wherein, as schemed
Shown in 1, the forward and backward tensile strength of PVC agings prepared under different etocrilene additions is given, from figure 1 it appears that
With the lifting of etocrilene addition, tensile strength gradually increases, and when the addition of etocrilene is 2.0 parts, reaches maximum
Value 38.51MPA, represent to rely on the addition of experience and tempering to have the intensity of PVC material certain reinforcing effect, after ultraviolet ageing, by
In PVC degradation processes, crosslinking, the tensile strength for causing its tensile strength to be all higher than before aging, in addition, vertical with relying on are produced
The raising of woods addition, tensile strength variable quantity is gradually reduced before and after PVC ultraviolet light and agings, after illustrating that etocrilene adds, PVC
Degraded cross-linking process is suppressed, that is, after adding etocrilene, inhibits PVC degradation with aging to a certain extent.
From figure 2 it can be seen that before aging, with the lifting of etocrilene addition, elastic model significantly increases, rigidity
Get a promotion, when the addition of etocrilene is 2.0 parts, reach maximum 1975.58Mpa；After ultraviolet ageing, on the one hand, by
Structure change occurs under ultraviolet irradiation in etocrilene, causes it to weaken for PVC hardening effect, causes PVC elasticity
Modulus declines；Still further aspect, PVC Partial digestions, crosslinking is produced, causes the rising of its modulus of elasticity again, the two factors
Comprehensive effect result is shown as in low etocrilene content, and PVC degraded crosslinkings are dominant, final aging sample modulus increase；It is high
During the addition of etocrilene, due to the consumption of etocrilene, PVC softenings are caused to account for leading, modular ratio after final aging
Reduced before aging.
From figure 3, it can be seen that aging is forward and backward, with the lifting of etocrilene addition, PVC elongation at breaks are put down substantially
Surely, illustrate the addition of etocrilene and consumed in ageing process, can't interact band for PVC entirety macromolecular chain
Carry out large effect, PVC backbone structures do not change, and etocrilene is scattered wherein in blending；Further, since PVC is handed over after aging
It is coupled generation and the content increase of structure so that elongation at break more significantly declines than having after aging after aging.
Show in being tested from etocrilene as light stabilizer：The addition of etocrilene, it is old to effectively improve PVC ultraviolet lights
Change performance；Etocrilene optimizes through compounding and content, can form the good anti-aging adjuvant system for hard PVC.
The invention is not limited in above-described embodiment, on the basis of technical scheme disclosed by the invention, the skill of this area
Art personnel are according to disclosed technology contents, it is not necessary to which performing creative labour can makes one to some of which technical characteristic
A little to replace and deform, these are replaced and deformation all falls in the scope of protection of the present invention.
Claims (5)
1. a kind of retaining and protection PVC board stake, it is characterised in that be made up of the raw material of following quality proportioning：
。
2. a kind of retaining and protection PVC board stake according to claim 1, it is characterised in that the lubricant is interior lubrication
The compound of stearic acid and outer lubrication Tissuemat E.
A kind of 3. retaining and protection PVC board stake according to claim 1, it is characterised in that the toughener be MBS with
CPE compounds.
4. a kind of retaining and protection PVC board stake according to claim 1, it is characterised in that the light stabilizer is support
Vertical woods.
5. prepare the method for the PVC board stake described in any one of Claims 1 to 4, it is characterised in that comprise the following steps：
（1）Raw material is mixed, is warming up to 120-140 DEG C, is discharged in the mixer of jacketed water cooling, continues to mix, to temperature
Degree drops to 45 ± 5 DEG C, discharge to feed bin；
（2）Single screw extrusion：Material in feed bin is finally produced through Single screw extrusion, Vacuum shaping, water-cooled shaping, cutting
Product, wherein, Single screw extrusion molding control condition is,
1 195 ± 5 DEG C of area's temperature, 2 190 ± 5 DEG C of area's temperature, 3 190 ± 5 DEG C of area's temperature, 4 190 ± 5 DEG C of area's temperature, 5 area's temperature
185 ± 5 DEG C, 165 ± 5 DEG C of linkage section temperature, die temperature is at 180-200 DEG C, 860 ± 20r/min of rate of feeding, extrusion speed
500 ± 10r/min is spent, 175 ± 5 r of hauling speed/min, Vacuum shaping section vacuum is 0.5-0.7Mpa, cooling water temperature
For 15-20 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711136130.8A CN107880435B (en) | 2017-11-16 | 2017-11-16 | PVC sheet pile for foundation resistance support and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711136130.8A CN107880435B (en) | 2017-11-16 | 2017-11-16 | PVC sheet pile for foundation resistance support and preparation method thereof |
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| Publication Number | Publication Date |
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| CN107880435A true CN107880435A (en) | 2018-04-06 |
| CN107880435B CN107880435B (en) | 2020-04-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110156638A (en) * | 2019-06-28 | 2019-08-23 | 武汉本杰明医药股份有限公司 | The preparation process of etocrilene |
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| CN102850699A (en) * | 2012-09-28 | 2013-01-02 | 北京奥宇模板有限公司 | Modified polyvinyl chloride (PVC) for producing building template |
| CN103242197A (en) * | 2013-05-24 | 2013-08-14 | 安徽圣诺贝化学科技有限公司 | Preparation method of ultraviolet absorbent intermediate etocrilene (ETO) |
| CN106633578A (en) * | 2017-01-03 | 2017-05-10 | 广东护城高新建材股份有限公司 | High-polymer plastic steel composite board pile |
| CN106632871A (en) * | 2017-01-04 | 2017-05-10 | 广东锦绣天地市政工程有限公司 | High-strength anti-breaking plastic steel sheet pile |
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2017
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| CN102850699A (en) * | 2012-09-28 | 2013-01-02 | 北京奥宇模板有限公司 | Modified polyvinyl chloride (PVC) for producing building template |
| CN103242197A (en) * | 2013-05-24 | 2013-08-14 | 安徽圣诺贝化学科技有限公司 | Preparation method of ultraviolet absorbent intermediate etocrilene (ETO) |
| CN106633578A (en) * | 2017-01-03 | 2017-05-10 | 广东护城高新建材股份有限公司 | High-polymer plastic steel composite board pile |
| CN106632871A (en) * | 2017-01-04 | 2017-05-10 | 广东锦绣天地市政工程有限公司 | High-strength anti-breaking plastic steel sheet pile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110156638A (en) * | 2019-06-28 | 2019-08-23 | 武汉本杰明医药股份有限公司 | The preparation process of etocrilene |
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| Publication number | Publication date |
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| CN107880435B (en) | 2020-04-28 |
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