CN107043515A - Low temperature-resistancorrosion-resistant corrosion-resistant diaphragm - Google Patents
Low temperature-resistancorrosion-resistant corrosion-resistant diaphragm Download PDFInfo
- Publication number
- CN107043515A CN107043515A CN201710099172.2A CN201710099172A CN107043515A CN 107043515 A CN107043515 A CN 107043515A CN 201710099172 A CN201710099172 A CN 201710099172A CN 107043515 A CN107043515 A CN 107043515A
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- CN
- China
- Prior art keywords
- diaphragm
- parts
- resistant
- low temperature
- antioxidant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/12—Filter presses, i.e. of the plate or plate and frame type
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
-
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
Abstract
The invention discloses Low temperature-resistancorrosion-resistant corrosion-resistant diaphragm, by weight by 54 74 parts of block copolymerization polypropylene, 12 32 parts of POE, 3 13 parts of compatilizer, 28 parts of nucleator, 0.5 1.5 parts of antioxidant, diaphragm special raw material is obtained after blending and modifying at 200 240 DEG C through double screw extruder, diaphragm is prepared from by diaphragm special raw material.With advantages below：It is low temperature resistant, it is corrosion-resistant；The service life under low temperature, strong acid, basic conditions effectively is extended, use cost is reduced；Product is stable solid-phase construction.
Description
Technical field
It is specifically a kind of for low temperature resistant resistance in filter press the invention belongs to filter press diaphragm technical field
Corrode diaphragm.
Background technology
With the development of solid-liquid separation technique, the field using filter press process route is constantly expanding.At present extensively
Ground is used by industries such as mine, coal, chemical industry, food, medicine, pigment, biological products, environmental protection, sewage disposals.With application neck
The expansion in domain, occurs in that some problems in the application.At low ambient temperatures, under strong acid, strong alkali environment, the diaphragm of filter press is used
Performance and used life can not meet the use requirement of above-mentioned environment, limit its use in particular circumstances.Particular problem
It is as follows：
1st, in the environment of low temperature (- 15--15 DEG C), the rigidity of diaphragm is significantly improved, and rigid element and flexible part appearance are bright
Aobvious line of demarcation, makes diaphragm deformation, and can not recover, and forms empty room, causes rupture；
2nd, in the environment of low temperature (- 15--15 DEG C), diaphragm is easily cracked, and makes erosion is readily permeable to arrive material internal,
Destroy the performance of material；
Above mentioned problem makes current filter plate service life less than three months, adds the production cost of user.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of Low temperature-resistancorrosion-resistant corrosion-resistant diaphragm, improve diaphragm
Low temperature resistant, decay resistance, makes the performance of diaphragm more uniform.
In order to solve the above technical problems, a kind of Low temperature-resistancorrosion-resistant corrosion-resistant diaphragm that the present invention is provided, by weight by 54-
74 parts of block copolymerization polypropylene, 12-32 parts of ethylene-octene copolymer, 3-13 parts of compatilizer, 2-8 parts of nucleator,
0.5-1.5 parts of antioxidant, diaphragm special raw material is obtained through double screw extruder at 200-240 DEG C after blending and modifying, every
Diaphragm is prepared from by diaphragm special raw material.
Block copolymerization polypropylene has good shock resistance；Ethylene-octene copolymer performance is more soft, good toughness,
Adhesion strength is high, and the strong skin of stretching and tearing strength of film are protruded, and puncture-resistant, heat sealability is good；Nucleator is by changing resin
Crystallization behavior, accelerates crystalline rate, increases crystal density and promote fine grain size, reaches shortening molding cycle, improves
The physical and mechanical properties such as the product transparency, lustrous surface, tensile strength, rigidity, heat distortion temperature, impact resistance, creep resistance
Function additive；Antioxidant prevents the aging of polymer and extends its service life；Compatilizer promotes incompatible polymers knot
Close in one, and then the auxiliary agent for the blend stablized；The component of introducing is all extremely stable, and each component is full and uniform
Ground is mixed, and is formed stable solid-phase construction, has been reached and not only met low temperature but also corrosion resistant purpose.
Preferably, by weight by 59-69 parts of block copolymerization polypropylene, 15-29 parts of ethylene-octene copolymerization
Thing, 6-10 parts of compatilizer, 4-6 parts of nucleator, 0.75-1.25 parts of antioxidant, through double screw extruder at 200-240 DEG C
Diaphragm special raw material is obtained after lower blending and modifying, diaphragm is prepared from by diaphragm special raw material.
Preferably, the nucleator is one kind in nano-calcium carbonate, talcum powder, silica.
Preferably, the antioxidant is one kind in antioxidant 1010, antioxidant 1098, antioxidant AT-10.
Preferably, the compatilizer is high density polyethylene (HDPE).
After above structure, a kind of Low temperature-resistancorrosion-resistant corrosion-resistant diaphragm of the invention compared with prior art, with following
Advantage：It is low temperature resistant, it is corrosion-resistant；The service life under low temperature, strong acid, basic conditions effectively is extended, use cost is reduced；
Product is stable solid-phase construction.
Embodiment
The present invention is further described by the following embodiment.
Embodiment 1：
55 parts of block copolymerization polypropylene, 25 parts of ethylene-octene copolymer, 11 parts of high density are gathered by weight
Ethene, 8 parts of nano-calcium carbonate, 1 part of antioxidant 1010, are obtained through double screw extruder at 200-240 DEG C after blending and modifying
Diaphragm special raw material is obtained, diaphragm is prepared from by diaphragm special raw material.
The component of introducing is all extremely stable, and each component is sufficiently uniformly mixed, and forms stable solid phase knot
Structure, has reached and has not only met low temperature but also corrosion resistant purpose.
Survey report 1
The glass transition temperature of diaphragm is -42 DEG C as can be seen from the table, that is to say, that under -42 DEG C of low temperature
It can be cracked, become fragile, diaphragm can be used at low ambient temperatures, in addition, diaphragm soaks 48 in strong acid, strong base solution
Hour does not also change, and illustrates the anti-strong acid and strong base of diaphragm.The diaphragm that i.e. the present embodiment is provided is low temperature resistant, corrosion-resistant.
Embodiment 2：
By weight by 59 parts of block copolymerization polypropylene, 29 parts of ethylene-octene copolymer, 8.5 parts of high density
Polyethylene, 2 parts of talcum powder, 1.5 parts of antioxidant 1098, are obtained through double screw extruder at 200-240 DEG C after blending and modifying
Diaphragm special raw material is obtained, diaphragm is prepared from by diaphragm special raw material.
The component of introducing is all extremely stable, and each component is sufficiently uniformly mixed, and forms stable solid phase knot
Structure, has reached and has not only met low temperature but also corrosion resistant purpose.
Survey report 2
The glass transition temperature of diaphragm is -42 DEG C as can be seen from the table, that is to say, that under -42 DEG C of low temperature
It can be cracked, become fragile, diaphragm can be used at low ambient temperatures, in addition, diaphragm soaks 48 in strong acid, strong base solution
Hour does not also change, and illustrates the anti-strong acid and strong base of diaphragm.The diaphragm that i.e. the present embodiment is provided is low temperature resistant, corrosion-resistant.
Embodiment 3：
64 parts of block copolymerization polypropylene, 22 parts of ethylene-octene copolymer, 8 parts of high density are gathered by weight
Ethene, 5 parts of silica, 1 part of antioxidant AT-10, are obtained through double screw extruder at 200-240 DEG C after blending and modifying
Diaphragm special raw material, diaphragm is prepared from by diaphragm special raw material.
The component of introducing is all extremely stable, and each component is sufficiently uniformly mixed, and forms stable solid phase knot
Structure, has reached and has not only met low temperature but also corrosion resistant purpose.
Survey report 3
The glass transition temperature of diaphragm is -45 DEG C as can be seen from the table, that is to say, that under -45 DEG C of low temperature
It can be cracked, become fragile, diaphragm can be used at low ambient temperatures, in addition, diaphragm soaks 48 in strong acid, strong base solution
Hour does not also change, and illustrates the anti-strong acid and strong base of diaphragm.The diaphragm that i.e. the present embodiment is provided is low temperature resistant, corrosion-resistant.
Embodiment 4：
74 parts of block copolymerization polypropylene, 12 parts of ethylene-octene copolymer, 8 parts of high density are gathered by weight
Ethene, 5.5 parts of silica, 0.5 part of antioxidant AT-10, through double screw extruder at 200-240 DEG C after blending and modifying
Diaphragm special raw material is obtained, diaphragm is prepared from by diaphragm special raw material.
The component of introducing is all extremely stable, and each component is sufficiently uniformly mixed, and forms stable solid phase knot
Structure, has reached and has not only met low temperature but also corrosion resistant purpose.
Survey report 4
The glass transition temperature of diaphragm is -44 DEG C as can be seen from the table, that is to say, that under -44 DEG C of low temperature
It can be cracked, become fragile, diaphragm can be used at low ambient temperatures, in addition, diaphragm soaks 48 in strong acid, strong base solution
Hour does not also change, and illustrates the anti-strong acid and strong base of diaphragm.The diaphragm that i.e. the present embodiment is provided is low temperature resistant, corrosion-resistant.
Claims (5)
1. a kind of Low temperature-resistancorrosion-resistant corrosion-resistant diaphragm, it is characterised in that：By weight by 54-74 parts of block copolymerization polypropylene,
12-32 parts of ethylene-octene copolymer, 3-13 parts of compatilizer, 2-8 parts of nucleator, 0.5-1.5 parts of antioxidant, through double
Screw extruder obtains diaphragm special raw material at 200-240 DEG C after blending and modifying, diaphragm is by diaphragm special raw material system
It is standby to form.
2. Low temperature-resistancorrosion-resistant corrosion-resistant diaphragm according to claim 1, it is characterised in that：By weight by 59-69 parts
Block copolymerization polypropylene, 15-29 parts of ethylene-octene copolymer, 6-10 parts of compatilizer, 4-6 parts of nucleator, 0.75-
1.25 parts of antioxidant, diaphragm special raw material, diaphragm are obtained through double screw extruder at 200-240 DEG C after blending and modifying
It is prepared from by diaphragm special raw material.
3. Low temperature-resistancorrosion-resistant corrosion-resistant diaphragm according to claim 2, it is characterised in that：The nucleator is nano-calcium carbonate
One kind in calcium, talcum powder, silica.
4. Low temperature-resistancorrosion-resistant corrosion-resistant diaphragm according to claim 2, it is characterised in that：The antioxidant is antioxidant
1010th, one kind in antioxidant 1098, antioxidant AT-10.
5. Low temperature-resistancorrosion-resistant corrosion-resistant diaphragm according to claim 2, it is characterised in that：The compatilizer is high-density polyethylene
Alkene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710099172.2A CN107043515A (en) | 2017-02-23 | 2017-02-23 | Low temperature-resistancorrosion-resistant corrosion-resistant diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710099172.2A CN107043515A (en) | 2017-02-23 | 2017-02-23 | Low temperature-resistancorrosion-resistant corrosion-resistant diaphragm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107043515A true CN107043515A (en) | 2017-08-15 |
Family
ID=59544560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710099172.2A Pending CN107043515A (en) | 2017-02-23 | 2017-02-23 | Low temperature-resistancorrosion-resistant corrosion-resistant diaphragm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107043515A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110041604A (en) * | 2018-01-16 | 2019-07-23 | 中夏新能源（上海）有限公司 | A kind of diaphragm, preparation method and diaphragm pump |
| CN114784460A (en) * | 2022-06-17 | 2022-07-22 | 宁波长阳科技股份有限公司 | Low-temperature-resistant lithium battery microporous membrane and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101073718A (en) * | 2006-08-01 | 2007-11-21 | 杭州兴源过滤机有限公司 | Integrated polypropylene diaphragm filter-plate structure and its formation |
| CN103113705A (en) * | 2013-02-01 | 2013-05-22 | 广东聚石化学股份有限公司 | Transparent cold-resistant flame-retardant polypropylene material and preparation method thereof |
-
2017
- 2017-02-23 CN CN201710099172.2A patent/CN107043515A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101073718A (en) * | 2006-08-01 | 2007-11-21 | 杭州兴源过滤机有限公司 | Integrated polypropylene diaphragm filter-plate structure and its formation |
| CN103113705A (en) * | 2013-02-01 | 2013-05-22 | 广东聚石化学股份有限公司 | Transparent cold-resistant flame-retardant polypropylene material and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 《中国化学工业年鉴》编辑部: "《2007中国化学工业年鉴上卷》", 31 December 2007, 中国化工信息中心 * |
| 赵敏等: "《改性聚丙烯新材料》", 30 September 2002, 化学工业出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110041604A (en) * | 2018-01-16 | 2019-07-23 | 中夏新能源（上海）有限公司 | A kind of diaphragm, preparation method and diaphragm pump |
| CN114784460A (en) * | 2022-06-17 | 2022-07-22 | 宁波长阳科技股份有限公司 | Low-temperature-resistant lithium battery microporous membrane and preparation method thereof |
| CN114784460B (en) * | 2022-06-17 | 2022-09-09 | 宁波长阳科技股份有限公司 | Low-temperature-resistant lithium battery microporous membrane and preparation method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170815 |