CN110524989A - A kind of corrosion-resistant cesspool membrane material and preparation method thereof - Google Patents
A kind of corrosion-resistant cesspool membrane material and preparation method thereof Download PDFInfo
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- CN110524989A CN110524989A CN201910783520.7A CN201910783520A CN110524989A CN 110524989 A CN110524989 A CN 110524989A CN 201910783520 A CN201910783520 A CN 201910783520A CN 110524989 A CN110524989 A CN 110524989A
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- pvc
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- corrosion
- cesspool
- resistant
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/582—Tearability
- B32B2307/5825—Tear resistant
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/724—Permeability to gases, adsorption
Abstract
The invention discloses a kind of corrosion-resistant cesspool membrane materials, including composite material, the composite material is using high-strength polyester woven fabric as basic cloth, black PVC modeling pulp layer and white PVC plastic pulp layer are successively respectively equipped in its tow sides, the composite material is equipped with layer at PVDF table on one side, and another side is bonded one layer of pvdf membrane layer.The present invention has high-strength, acid-alkali-corrosive-resisting, air-tightness good, and has excellent peel strength, shading heat-proof quality.
Description
Technical field
The present invention relates to a kind of membrane structures and preparation method thereof, and in particular to a kind of corrosion-resistant cesspool membrane material and its system
Preparation Method.
Background technique
Currently, membrane structure is a kind of special modern building fabric, it is with high strength flexible thin-film material
After tensioning system combines, the space structure body with certain rigidity of formation.Changeable support construction, flexibility pole
Strong membrane structure material keeps the moulding of building more diversified, novel and beautiful, while again with the beauty of structure, and color is rich
Richness, free building shape and Architectural Language abundant, so that membrane structure becomes the new lover of material circle.Modern Membrane Structure building
It is the high-tech engineering for integrating architecture, structural mechanics, fine chemistry industry and material science.Its good, light with mechanical characteristic
The advantages that, thermal property is excellent, fire-retardant and self-cleaning property is good, at low cost, short time limit, is widely used in sport, entertainment, friendship
In the buildings such as logical transport.Most common membrane material is mainly PTFE membrane material and PVC membrane material in membrane structure building.PTFE
Membrane material, which refers to, coats PTFE(polytetrafluoroethylene (PTFE) in the base fabric that superfine glass fibre (3mm) is woven into) resin and formed
Composite material.PVC membrane material, which refers to, coats PVC(polyvinyl fluoride in the base fabric of polyester fiber braiding) resin and answering for being formed
Condensation material.
Since membrane material is soft shape structure, itself does not have tension, and anti-pressure ability, bending resistance are also very poor, apply completely by outside
The prestressing force that adds keeps shape, even if there is also sizable tensile stresses in no external force and in the case where do not consider self weight.Film
Surface reaches inside and outside dynamic balance by itself Curvature varying.As the dedicated membrane structure material for the treatment of tank, guaranteeing centainly
Strength require under the premise of, it is necessary to have corrosion resistance and barrier properties for gases can just guarantee in production process in this way
The acid-base property sewage of generation has preferable durability, and obstructs to the foul smell generated in cesspool.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of corrosion-resistant cesspool membrane materials and preparation method thereof, have
High-strength, acid-alkali-corrosive-resisting, air-tightness are good, and have excellent peel strength, shading heat-proof quality.
The technical proposal for solving the technical problem of the invention is: a kind of corrosion-resistant cesspool membrane material, including compound
Material, the composite material are successively to be respectively equipped with black PVC in its tow sides using high-strength polyester woven fabric as basic cloth
Pulp layer and white PVC plastic pulp layer are moulded, the composite material is equipped with layer at PVDF table on one side, and another side is bonded one layer of pvdf membrane layer.
As a preference, the black PVC pulp layer and white PVC pulp layer include PVC paste resin, stabilization
Agent, plasticizer, fire retardant, mould inhibitor and pigment.
As a preference, the pigment in the PVC slurry black layer is black pigment, the plasticizer DINP increases
The content for moulding agent is the 46% of PVC paste weight resin percentage；The fire retardant is the mixing of antimony oxide and magnesium hydroxide
Object, the content of the fire retardant are the 25% of PVC paste weight resin percentage.
As a preference, the PVC slurry black layer also contains adhesive, the adhesive is isocyanates glue
Stick, the content of the adhesive are the 3.3% of PVC paste weight resin percentage.
As a preference, the pigment in the PVC slurry white layer is white pigment, the plasticizer DINP increases
The content for moulding agent is the 38% of PVC paste weight resin percentage；The fire retardant is the mixing of antimony oxide and magnesium hydroxide
Object, the content of the fire retardant are the 27% of PVC paste weight resin percentage.As a preference, the surface PVDF
Process layer includes the mixture of butanone and dimethylformamide DMF.
A kind of preparation method of corrosion-resistant cesspool membrane material as described above, comprising the following steps:
A: vertical primary coat black PVC pulp layer, institute are passed through in the front and back sides of high-strength polyester woven fabric using the preparation of knife scraping coating method
Stating black PVC slurry layer thickness is 0.18~0.20 mm；
B: the material that step a is obtained uses knife scraping coating front and back sides coating white PVC pulp layer, and dries, and is cooled to room temperature, obtains
To composite material；
C: the composite material reverse side that step b is obtained is handled by PVDF surface treating agent, is formed in composite material reverse side
Layer 1 at PVDF table；
D: with polyurethane aqueous two component water process pvdf membrane layer, the composite material that step c is obtained and pvdf membrane layer are simultaneously
Preheated, contact the another side of composite material with pvdf membrane surface, by through at PVDF table agent handle composite material with
The fitting of pvdf membrane direct pressure, is cooled to room temperature, obtains corrosion-resistant cesspool membrane material；
Wherein, it is all made of knife scraping coating in step a and b and applies PVC slurry, step a heating wheel temperature is 165~180 DEG C, step b
Heating wheel temperature is 175~185 DEG C；Agent heating wheel temperature is 120 DEG C at table in step c；In step d, binding temperature 169
~175 DEG C；The speed that coating cloth and pvdf membrane enter laminate pressure wheel is identical；
Wherein, the PVC slurry black layer that knife scraping coating obtains in step a is with a thickness of 0.08~0.10 mm；It is positive in step b
PVC slurry white layer is with a thickness of 0.28~0.30 mm；The PVC slurry white layer of reverse side is with a thickness of 0.22~0.25 mm.Step a
Described in knife scraping coating method apply PVC slurry black layer the step of include: by PVC paste resin, stabilizer, plasticizer, fire retardant,
Mould inhibitor, adhesive and pigment are placed on after mixing in machine stock chest, and basic cloth scrolls through blow tank through wheel, and knife is scraped
One layer of PVC slurry is transported to heating wheel, the woven fabric of PVC slurry black layer, step b is formed and coated with after heating wheel heating is cooling
Described in knife scraping coating method, the step of upper painting PVC slurry white layer includes: by PVC paste resin, stabilizer, plasticizer, fire-retardant
Agent, mould inhibitor, adhesive and pigment are placed on after mixing in machine stock chest, and the material that step a is obtained is scrolled through through wheel
Blow tank, knife scrape one layer of PVC white slurry, are transported to heating wheel, and black PVC and white is formed and coated with after heating wheel heating is cooling
The composite material of color layer of PVC.
Main feature of the present invention is as follows:
1. preferred 1500D × 1500D high-strength polyester woven fabric is substrate, by the arrangement mode of double ends double weft, to reach
High-strength purpose；It not only ensure that tearing load, the tensile load of product, the characteristics of woven fabric is without playing, and avoid using needle
Fabric leads to membrane ruptures due to elastic deformation in use, influences life of product.Secondly, selection is guaranteeing base fabric itself
Under the premise of strength, it can guarantee that adhesive penetrates into the another side of cloth, and form bonding point there.Due to mechanical adhesion power and
Chemical binding force is very high, obtains very high bond level, i.e. peel load is very high.
2. preferred PVDF is raw material, handled by double layer surface, makes product that there is high-intensitive, corrosion resistant property.
3.PVC wet end furnish, according to the objective function of this product, mainly high stretching is compound, high tearing is compound, airtight
Property etc. for research point of penetration, the preferably main component and dosage of PVC membrane product are as follows: 100 parts of PVC resin-oatmeal, plasticizer DINP
50 parts, 1-5 parts of epoxidized soybean oil, 3-5 parts of barium zinc stabilizer, 0.1-0.5 parts of anti-UV agent, colorant it is several etc..
4. surface treating agent selects, the antiacid alkali ability of PVC film itself is stronger, but is being used for a long time with PVC, internal
Auxiliary agent can be precipitated automatically and lead to material aging, antiacid caustic corrosion reduced capability, in consideration of it, our methods from surface treatment
Extend the service life of PVC and at the same time reaching antiacid caustic corrosion ability.Trial-production group final choice dual coating PVDF conduct
Surface treating agent.PVDF layers solve the problems, such as two, first is that can carry out a closing to PVC, prevent the analysis of plasticiser
Out, delay the ager process of PVC；Second is that playing the ability of antiacid caustic corrosion by PVDF.
5, production process: base fabric → double spread → two-edged knife scrapes PVC slurry → PVDF film fitting → clot.
Corrosion-resistant cesspool membrane material produced, the either tensile load, peel load of product, the property such as tear load
It can all produce a desired effect.Properties of product are superior, reliable in quality, deep by the extensive favorable comment of client.Production process of the present invention makes
With environment-friendly water-based glue, and plasticiser is not added, production technology is environment friendly and pollution-free.
6. drying temperature and time, if drying temperature is excessively high, drying rate too fast will lead to generates gas inside PVC film
Body, gas is gone out from film surface layer easily there is " pinprick " phenomenon.To avoid this phenomenon, we are right under the premise of reducing temperature first
It is dried.But drying time be also not easy it is too long cause influence production efficiency.In consideration of it, we explore suitable drying temperature
Degree and time.Both under the premise of having can guarantee that product efficiency was big, there is not " needle thorn ".
7. PVC coating agent standing time contains bubble by the PVC coating agent being sufficiently stirred, by prepared coating
A period of time is placed in agent sealing, not only improves elimination bubble, more mainly its macromolecular is made sufficiently to dissolve, stretch, is conducive to mention
The peel strength of high coating product.And standing time is too long, intertwine with each other aggravation between PVC macromolecular, so that PVC be made to divide greatly
The entanglement of son and fiber weakens, and peel strength reduces.Therefore, we are determined through experimentation suitable standing time.
8. PVC thicknesses of layers determines, by experiment we have found that its thicker peel strength of film layer is bigger, but increase weight simultaneously
Rate also increases.We take into account peel strength and product weight during the experiment to determine film thickness.
The beneficial effects of the present invention are: the corrosion-resistant cesspool of the present invention with membrane material compared with general membrane structure material,
High-strength, acid-alkali-corrosive-resisting, air-tightness are more preferably.It is its tensile load, elongation at break, tearing load, peel load, air penetrability, resistance to
The performances such as acid and alkali corrosion are more preferably.By not only ensure that product is high-strength to the woven selection (double ends double weft) of product base fabric, but also
The membrane structure material that is more suitable uses.Its less preferred glue, selects polyurethane aqueous glue, do not only reach high separation strength and
Product is more environmentally-friendly.Key is to realize the excellent separation strength of product by optimizing coating process, improves product quality.Most
Afterwards by fitting PVDF film, the corrosion resistant performance of product is realized.Properties of product are superior, reliable in quality, deep extensive by client
Favorable comment.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention.
The present invention will be further described with reference to the accompanying drawing.
Specific embodiment
Embodiment 1: as shown in Fig. 1, a kind of corrosion-resistant cesspool membrane material, including composite material, the composite wood
Material is with high-strength polyester woven fabric 4 for basic cloth, is successively respectively equipped with black PVC modeling pulp layer 3 and white PVC in its tow sides
Pulp layer 2 is moulded, the composite material is equipped with layer 1 at PVDF table on one side, and another side is bonded one layer of PVDF thin film layer 5.
The black PVC pulp layer 3 and white PVC pulp layer 2 include PVC paste resin, stabilizer, plasticizer, resistance
Fire agent, mould inhibitor and pigment.
Pigment in the PVC slurry black layer 3 is black pigment, and the content of the plasticizer DINP, plasticizer are
The 46% of PVC paste weight resin percentage；The fire retardant is the mixture of antimony oxide and magnesium hydroxide, and described is fire-retardant
The content of agent is the 25% of PVC paste weight resin percentage.
The PVC slurry black layer 3 also contains adhesive, and the adhesive is isocyanates adhesive, the gluing
The content of agent is the 3.3% of PVC paste weight resin percentage.
Pigment in the PVC slurry white layer 2 is white pigment, and the content of the plasticizer DINP, plasticizer are
The 38% of PVC paste weight resin percentage；The fire retardant is the mixture of antimony oxide and magnesium hydroxide, and described is fire-retardant
The content of agent is the 27% of PVC paste weight resin percentage.
The PVDF surface-treated layer 1 includes the mixture of butanone and dimethylformamide DMF.
A kind of embodiment 2: preparation method of corrosion-resistant cesspool membrane material, comprising the following steps:
A: passing through vertical primary coat black PVC pulp layer 3 in the front and back sides of high-strength polyester woven fabric 4 using the preparation of knife scraping coating method,
The black PVC pulp layer 3 is with a thickness of 0.18mm；
B: the material that step a is obtained uses knife scraping coating front and back sides coating white PVC pulp layer 2, and dries, and is cooled to room temperature,
Obtain composite material；
C: the composite material reverse side that step b is obtained is handled by PVDF surface treating agent, is formed in composite material reverse side
Layer 1 at PVDF table；
D: with polyurethane aqueous two component water process pvdf membrane layer 5, the composite material that step c is obtained and pvdf membrane layer 5 are same
Shi Jinhang preheating, contacts the another side of composite material with 5 surface of pvdf membrane layer, the composite material that will be handled through agent at PVDF table
It is bonded, is cooled to room temperature with 5 direct pressure of pvdf membrane layer, obtain corrosion-resistant cesspool membrane material；
Wherein, it is all made of knife scraping coating in step a and b and applies PVC slurry, step a heating wheel temperature is 165~180 DEG C, step b
Heating wheel temperature is 175~185 DEG C；Agent heating wheel temperature is 120 DEG C at table in step c；In step d, binding temperature 169
~175 DEG C；The speed that coating cloth and pvdf membrane enter laminate pressure wheel is identical；
The PVC slurry black layer that knife scraping coating obtains in step a is with a thickness of 0.08~0.10 mm；Positive PVC slurry in step b
Expect white layer with a thickness of 0.28~0.30 mm；The PVC slurry white layer of reverse side is with a thickness of 0.22~0.25 mm.
Knife scraping coating method described in step a apply PVC slurry black layer the step of include: by PVC paste resin, stabilizer,
Plasticizer, fire retardant, mould inhibitor, adhesive and pigment are placed on after mixing in machine stock chest, and basic cloth rolls warp through wheel
Blow tank is crossed, knife scrapes one layer of PVC slurry, is transported to heating wheel, is formed and coated with PVC slurry black layer after heating wheel heating is cooling
Woven fabric, the step of knife scraping coating method described in step b, upper painting PVC slurry white layer includes: by PVC paste resin, stabilization
Agent, plasticizer, fire retardant, mould inhibitor, adhesive and pigment are placed on after mixing in machine stock chest, the material that step a is obtained
Material scrolls through blow tank through wheel, and knife scrapes one layer of PVC white slurry, is transported to heating wheel, is formed after heating wheel heating is cooling
It is coated with the composite material of black PVC and white PVC layer.
The present invention is the performance indicator and its application request tested with domestic similar product, is especially stretched negative
The specific performances indexs such as lotus, elongation at break, tearing load, peel load, air penetrability, acid-alkali-corrosive-resisting are foundation, are specially made
The requirement of product, makes product can satisfy customer requirement.
Product the key technical indexes is as follows:
1. tensile load (N/5cm): through to >=6000, broadwise >=5500；
2. elongation at break (%): through to >=25.0, broadwise >=35.0；
3. tearing load (N): through to >=600, broadwise >=700；
4. peel load (N/5cm): can not overall process removing；
5. air penetrability (mm/s) :≤1.0；
6. acid-alkali-corrosive-resisting: acid resistance: appearance is unchanged；Alkali resistance: appearance is unchanged.
Claims (9)
1. a kind of corrosion-resistant cesspool membrane material, including composite material, it is characterised in that: the composite material is washed with high-strength
Synthetic fibre woven fabric is basic cloth, is successively respectively equipped with black PVC modeling pulp layer and white PVC plastic pulp layer in its tow sides, described multiple
Condensation material is equipped with layer at PVDF table on one side, and another side is bonded one layer of pvdf membrane layer.
2. corrosion-resistant cesspool membrane material as described in claim 1, it is characterised in that: the black PVC pulp layer and white
PVC pulp layer includes PVC paste resin, stabilizer, plasticizer, fire retardant, mould inhibitor and pigment.
3. corrosion-resistant cesspool membrane material as claimed in claim 2, it is characterised in that: the face in the PVC slurry black layer
Material is black pigment, and the plasticizer DINP, the content of plasticizer is the 46% of PVC paste weight resin percentage；It is described fire-retardant
Agent is the mixture of antimony oxide and magnesium hydroxide, and the content of the fire retardant is PVC paste weight resin percentage
25%。
4. corrosion-resistant cesspool membrane material as claimed in claim 3, it is characterised in that: the PVC slurry black layer also contains
Adhesive, the adhesive are isocyanates adhesive, and the content of the adhesive is PVC paste weight resin percentage
3.3%。
5. corrosion-resistant cesspool membrane material as claimed in claim 2, it is characterised in that: the face in the PVC slurry white layer
Material is white pigment, and the plasticizer DINP, the content of plasticizer is the 38% of PVC paste weight resin percentage；It is described fire-retardant
Agent is the mixture of antimony oxide and magnesium hydroxide, and the content of the fire retardant is PVC paste weight resin percentage
27%。
6. corrosion-resistant cesspool membrane material as described in claim 1, it is characterised in that: the PVDF surface-treated layer includes
The mixture of butanone and dimethylformamide DMF.
7. a kind of preparation method of corrosion-resistant cesspool membrane material as described in claim 1, it is characterised in that: including following step
It is rapid:
A: vertical primary coat black PVC pulp layer, institute are passed through in the front and back sides of high-strength polyester woven fabric using the preparation of knife scraping coating method
Stating black PVC slurry layer thickness is 0.18~0.20 mm；
B: the material that step a is obtained uses knife scraping coating front and back sides coating white PVC pulp layer, and dries, and is cooled to room temperature, obtains
To composite material；
C: the composite material reverse side that step b is obtained is handled by PVDF surface treating agent, is formed in composite material reverse side
Layer at PVDF table；
D: with polyurethane aqueous two component water process pvdf membrane layer, the composite material that step c is obtained and pvdf membrane layer are simultaneously
Preheated, contact the another side of composite material with pvdf membrane surface, by through at PVDF table agent handle composite material with
The fitting of pvdf membrane direct pressure, is cooled to room temperature, obtains corrosion-resistant cesspool membrane material；
Wherein, it is all made of knife scraping coating in step a and b and applies PVC slurry, step a heating wheel temperature is 165~180 DEG C, step b
Heating wheel temperature is 175~185 DEG C；Agent heating wheel temperature is 120 DEG C at table in step c；In step d, binding temperature 169
~175 DEG C；The speed that coating cloth and pvdf membrane enter laminate pressure wheel is identical.
8. the preparation method of corrosion-resistant cesspool membrane material as claimed in claim 7, it is characterised in that: knife scratches in step a
The PVC slurry black layer that layer obtains is with a thickness of 0.08~0.10 mm；Positive PVC slurry white layer is in step b with a thickness of 0.28
~0.30 mm；The PVC slurry white layer of reverse side is with a thickness of 0.22~0.25 mm.
9. the preparation method of corrosion-resistant cesspool membrane material as claimed in claim 7, it is characterised in that: described in step a
Knife scraping coating method apply PVC slurry black layer the step of include: by PVC paste resin, stabilizer, plasticizer, fire retardant, mould inhibitor,
Adhesive and pigment are placed on after mixing in machine stock chest, and basic cloth scrolls through blow tank through wheel, and knife scrapes one layer of PVC
Slurry is transported to heating wheel, the woven fabric of PVC slurry black layer is formed and coated with after heating wheel heating is cooling, described in step b
The step of knife scraping coating method, upper painting PVC slurry white layer includes: by PVC paste resin, stabilizer, plasticizer, fire retardant, mould proof
Agent, adhesive and pigment are placed on after mixing in machine stock chest, and the material that step a is obtained scrolls through blow tank through wheel,
Knife scrapes one layer of PVC white slurry, is transported to heating wheel, is formed and coated with black PVC and white PVC layer after heating wheel heating is cooling
Composite material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910783520.7A CN110524989A (en) | 2019-08-23 | 2019-08-23 | A kind of corrosion-resistant cesspool membrane material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910783520.7A CN110524989A (en) | 2019-08-23 | 2019-08-23 | A kind of corrosion-resistant cesspool membrane material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110524989A true CN110524989A (en) | 2019-12-03 |
Family
ID=68662664
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| CN201910783520.7A Withdrawn CN110524989A (en) | 2019-08-23 | 2019-08-23 | A kind of corrosion-resistant cesspool membrane material and preparation method thereof |
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| CN (1) | CN110524989A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111845020A (en) * | 2020-08-10 | 2020-10-30 | 思嘉环保材料科技（上海）有限公司 | Production method of weather-resistant antibacterial PVDF (polyvinylidene fluoride) film PVC (polyvinyl chloride) coating material |
| CN111926584A (en) * | 2020-08-10 | 2020-11-13 | 思嘉环保材料科技（上海）有限公司 | Outdoor high-end weather-proof and antibacterial PVDF (polyvinylidene fluoride) film coating material |
-
2019
- 2019-08-23 CN CN201910783520.7A patent/CN110524989A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111845020A (en) * | 2020-08-10 | 2020-10-30 | 思嘉环保材料科技（上海）有限公司 | Production method of weather-resistant antibacterial PVDF (polyvinylidene fluoride) film PVC (polyvinyl chloride) coating material |
| CN111926584A (en) * | 2020-08-10 | 2020-11-13 | 思嘉环保材料科技（上海）有限公司 | Outdoor high-end weather-proof and antibacterial PVDF (polyvinylidene fluoride) film coating material |
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Application publication date: 20191203 |
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