CN110498999A - A kind of nitrogen oxygen separating carrier phenol formaldehyde foam products and preparation method thereof - Google Patents
A kind of nitrogen oxygen separating carrier phenol formaldehyde foam products and preparation method thereof Download PDFInfo
- Publication number
- CN110498999A CN110498999A CN201910824758.XA CN201910824758A CN110498999A CN 110498999 A CN110498999 A CN 110498999A CN 201910824758 A CN201910824758 A CN 201910824758A CN 110498999 A CN110498999 A CN 110498999A
- Authority
- CN
- China
- Prior art keywords
- phenol formaldehyde
- parts
- formaldehyde foam
- nitrogen oxygen
- foam products
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/047—Pressure swing adsorption
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0014—Use of organic additives
- C08J9/0023—Use of organic additives containing oxygen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0014—Use of organic additives
- C08J9/0033—Use of organic additives containing sulfur
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0066—Use of inorganic compounding ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
- C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
- C08J9/141—Hydrocarbons
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2361/00—Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
- C08J2361/04—Condensation polymers of aldehydes or ketones with phenols only
- C08J2361/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
-
- 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
- C08K3/32—Phosphorus-containing compounds
- C08K2003/329—Phosphorus containing acids
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/05—Alcohols; Metal alcoholates
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
- C08K5/41—Compounds containing sulfur bound to oxygen
- C08K5/42—Sulfonic acids; Derivatives thereof
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The present invention provides a kind of nitrogen oxygen separating carrier phenol formaldehyde foam products and preparation method thereof, wherein, the nitrogen oxygen separating carrier phenol formaldehyde foam products, its component includes: 100 parts of High Performance Phenolic Resins, 20-35 parts of curing agent, 5-15 parts of foaming agent, 5-15 parts of wetting agent, 3-6 parts of pore-creating agent, 2.5-3.5 parts of ethyl alcohol, 1-1.5 parts of butanol, 0.1-0.5 parts of sodium butoxide in terms of mass fraction；Wherein, curing agent be deionized water, phosphoric acid, p-methyl benzenesulfonic acid mixture, deionized water: phosphoric acid: p-methyl benzenesulfonic acid ratio be 37:37:100.Nitrogen oxygen separating carrier phenol formaldehyde foam products prepared by the present invention are compared with product at present on the market, and ash content is lower, percent opening is high, water imbibition is strong and volatile matter is more advantageous for preparing nitrogen oxygen separating carrier, and nitrogen concentration processed and nitrogen rate processed can be improved.
Description
Technical field
The present invention relates to nitrogen oxygen separating carrier material field, in particular to a kind of nitrogen oxygen separating carrier phenol formaldehyde foam products and
Preparation method.
Background technique
There are mainly three types of conventional process currently for oxygen, nitrogen in separation air, comprising: membrane separation technique, transformation are inhaled
Attached technology (PSA), cryogenic refrigeration technology.Wherein, pressure swing adsorption is using molecular sieve as adsorbent, by adsorbent to gas
The characteristic of the selective absorption of body works.
The known nitrogen oxygen separating carrier (i.e. nitrogen-preparing carbon molecular sieves) that function admirable is made, basic material needs to have following
Performance: the lower ash content the better (the basic material ash content of existing market is 4.5% or so), and volatile matter is needed in 44%-48%
In range, moisture should be lower than 20%, while the quality water absorption rate of basic material should be controlled at 5-40 times.
And the nitrogen oxygen separating carrier of prior art preparation, generally use flower mud material for basic raw material, this raw material belongs to out
Hole foam, general ash content, volatile matter are higher, and moisture and water absorbing properties have incomplete place, do basic material with flower mud
The nitrogen oxygen separating carrier of production yield itself is lower, while lower with carrier nitrogen rate, and nitrogen concentration processed is low.
Summary of the invention
To solve the problems in background technique, the present invention provides a kind of nitrogen oxygen separating carrier phenol formaldehyde foam products, with quality
Its component of number meter include: 100 parts of High Performance Phenolic Resins, 20-35 parts of curing agent, 5-15 parts of foaming agent, 5-15 parts of wetting agent,
3-6 parts of pore-creating agent, 2.5-3.5 parts of ethyl alcohol, 1-1.5 parts of butanol, 0.1-0.5 parts of sodium butoxide；
Wherein, curing agent be deionized water, phosphoric acid, p-methyl benzenesulfonic acid mixture, deionized water: phosphoric acid: to toluene sulphur
Sour ratio is 37:37:100.
Further, the High Performance Phenolic Resins, viscosity is 5000-10000cp, free phenol≤2.5%, trip at 25 DEG C
From aldehyde≤0.5%, solid content >=82%.
Further, p-methyl benzenesulfonic acid purity >=99.9%.
Further, the foaming agent is pentane, n-hexane or isopentane.
Further, the wetting agent is the surfactant of HLB value 7-9.
Further, the pore-creating agent is AES, neopelex, dish washing liquid etc..
The present invention also provides a kind of nitrogen oxygen separating carrier phenol formaldehyde foam products preparation methods, include the following steps:
Step 1: High Performance Phenolic Resins, foaming agent, wetting agent, pore-creating agent, ethyl alcohol, butanol, sodium butoxide are thrown in proportion
Enter in agitator tank and stirs, it is spare after mixing；
Step 2: mixture is transported to pouring head by conveying pipeline, stirred rapidly with the curing agent in another conveying pipeline
It is poured into the laminating machine heated, presses after mixing uniformly；
Step 3: material is sent to drying chamber, nitrogen oxygen separating carrier phenol formaldehyde foam system is obtained after starting, solidification, molding, demoulding
Product.
Further, laminating machine upper and lower surface is covered with recyclable plastics film.
Further, drying room temperature is 75-85 DEG C, and the pipeline length of drying unit is 18 meters, and carrier bar speed is 1.2-
1.5m/s。
Nitrogen oxygen separating carrier phenol formaldehyde foam products provided by the invention, the curing agent in component are that phenol formaldehyde foam prepares work
The curing agent generally used in skill, i.e. deionized water, phosphoric acid, p-methyl benzenesulfonic acid mixture, deionized water: phosphoric acid: to toluene
Sulfonic acid ratio is 37:37:100.In order to the ash content of phenol formaldehyde foam products is effectively reduced, be added in component of the invention ethyl alcohol,
Butanol, sodium butoxide are effectively performed with other compositions in component by three kinds of additives and are reacted, it will be apparent that reduce phenol formaldehyde foam
The ash content of product.
Nitrogen oxygen separating carrier phenol formaldehyde foam products prepared by the present invention and the at present base of nitrogen oxygen separating carrier on the market
Plinth raw material is compared, and ash content is lower, percent opening is high, water imbibition is strong and volatile matter is more advantageous for preparing nitrogen oxygen separating carrier, can be mentioned
Height nitrogen concentration and nitrogen rate processed.There is positive dissemination for the industry.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention,
Technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is the present invention one
Divide embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making
Every other embodiment obtained, shall fall within the protection scope of the present invention under the premise of creative work.
It should be noted that in the examples where no specific technique or condition is specified, it is described according to the literature in the art
Technology or conditions or carried out according to product description, reagents or instruments used without specified manufacturer, be that can lead to
Cross the conventional products of commercially available acquisition.
The reagent of the embodiment of the present invention and comparative example is described as follows:
High Performance Phenolic Resins: free phenol 2.7%, free 85%, 25 DEG C of aldehyde 0.4%, solid content viscosity 6000cp.
Curing agent: (deionized water: phosphoric acid: p-methyl benzenesulfonic acid) ratio is (37:37:100).
Foaming agent: pentane.
Wetting agent: sapn.
Pore-creating agent: neopelex.
Its component formula (in terms of mass fraction) of embodiment 1-3 provided by the invention is as shown in table 1:
Table 1
The phenol formaldehyde foam products of embodiment 1-3 the preparation method is as follows:
Step 1: by said components proportion by High Performance Phenolic Resins, foaming agent, wetting agent, pore-creating agent, ethyl alcohol, butanol,
It is stirred in sodium butoxide investment agitator tank, it is spare after mixing；
Step 2: mixture is transported to pouring head by conveying pipeline, stirred rapidly with the curing agent in another conveying pipeline
It is poured into the laminating machine heated after mixing uniformly, die size 300*300*25mm is pressed；
Step 3: material is sent to drying chamber, drying room temperature is controlled at 80 DEG C or so, after material is placed on drying chamber starting, 15min
Nitrogen oxygen separating carrier phenol formaldehyde foam products are obtained after curing molding, demoulding；Pipeline length is 18m, and carrier bar speed is 1.2-1.5m/
s；Quicker de-mold while hot after depanning.
Its component formula (in terms of mass fraction) of comparative example 1-7 provided by the invention is as shown in table 2:
Table 2
Note :-indicate that its formula does not add the component.
The phenol formaldehyde foam products of comparative example 1-7 the preparation method is as follows:
Step 1: pressing component proportion for High Performance Phenolic Resins, foaming agent, wetting agent, pore-creating agent, ethyl alcohol, butanol, butanol
It is stirred in sodium investment agitator tank, it is spare after mixing；Wherein, comparative example 1 does not add ethyl alcohol, butanol, sodium butoxide；Comparative example 2
Butanol, sodium butoxide are not added；Comparative example 3 does not add ethyl alcohol, sodium butoxide；Comparative example 4 does not add ethyl alcohol, butanol；Comparative example 5 does not add
Add sodium butoxide；Comparative example 6 does not add butanol；Comparative example 7 does not add ethyl alcohol；
Step 2: mixture is transported to pouring head by conveying pipeline, stirred rapidly with the curing agent in another conveying pipeline
It is poured into the laminating machine heated after mixing uniformly, die size 300*300*25mm is pressed；
Step 3: material is sent to drying chamber, drying room temperature is controlled at 80 DEG C or so, after material is placed on drying chamber starting, 15min
Nitrogen oxygen separating carrier phenol formaldehyde foam products are obtained after curing molding, demoulding；Pipeline length is 18m, and carrier bar speed is 1.2-1.5m/
s；Quicker de-mold while hot after depanning.
The present invention carries out relevant Physicochemical test test, inspection to phenol formaldehyde foam made from embodiment 1-3 and comparative example 1-7
The results are shown in Table 3 for survey:
Table 3
According to table 1, its ash content of phenol formaldehyde foam obtained by embodiment 1 is phenolic aldehyde obtained by 0.35%, embodiment 2
Its ash content of foam is 0.4%, phenol formaldehyde foam obtained by embodiment 3 its ash content is 0.32%, it follows that being mentioned using the present invention
The ash content of its basic material of nitrogen oxygen separating carrier made of the phenol formaldehyde foam products of confession is far below nitrogen oxygen separating carrier institute in the market
With the ash content of basic material.Using phenol formaldehyde foam products provided by the invention production nitrogen oxygen separating carrier can be improved nitrogen concentration processed and
Nitrogen rate processed.
According to table 1, the component of comparative example 1 has lacked ethyl alcohol, butanol, sodium butoxide compared with embodiment, made from
The ash content of phenol formaldehyde foam products is 3.8%.The component of comparative example 2 has lacked butanol, sodium butoxide compared with embodiment, made from
The ash content of phenol formaldehyde foam products is 3.2%.The component of comparative example 3 has lacked ethyl alcohol, sodium butoxide compared with embodiment, made from
The ash content of phenol formaldehyde foam products is 3.1%.The component of comparative example 4 has lacked ethyl alcohol, butanol, phenol obtained compared with embodiment
The ash content of aldehyde foamed product is 2.9%.The component of comparative example 5 has lacked sodium butoxide, phenolic aldehyde bubble obtained compared with embodiment
The ash content of foam product is 2.8%.The component of comparative example 6 has lacked butanol, phenol formaldehyde foam products obtained compared with embodiment
Ash content be 2.7%.The component of comparative example 1 has lacked ethyl alcohol, the ash content of phenol formaldehyde foam products obtained compared with embodiment
It is 3.5%.It follows that in instant component ethyl alcohol, butanol, sodium butoxide common presence, make in three and component it is other at
Divide and produce synergistic effect, so as to which the ash content of phenol formaldehyde foam products is effectively reduced.Any one of three is lacked, with group
The synergistic effect of other compositions disappears in point, and the ash content of phenol formaldehyde foam products can not be effectively reduced.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (9)
1. a kind of nitrogen oxygen separating carrier phenol formaldehyde foam products, it is characterised in that: its component includes: high-performance phenol in terms of mass fraction
100 parts of urea formaldehyde, 20-35 parts of curing agent, 5-15 parts of foaming agent, 5-15 parts of wetting agent, 3-6 parts of pore-creating agent, ethyl alcohol 2.5-3.5
Part, 1-1.5 parts of butanol, 0.1-0.5 parts of sodium butoxide；
Wherein, curing agent be deionized water, phosphoric acid, p-methyl benzenesulfonic acid mixture, deionized water: phosphoric acid: p-methyl benzenesulfonic acid ratio
Example is 37:37:100.
2. nitrogen oxygen separating carrier phenol formaldehyde foam products according to claim 1, it is characterised in that: the high-performance pnenolic aldehyde tree
Rouge, viscosity is 5000-10000cp at 25 DEG C, and free phenol≤2.5%, dissociate aldehyde≤0.5%, solid content >=82%.
3. nitrogen oxygen separating carrier phenol formaldehyde foam products according to claim 1, it is characterised in that: the p-methyl benzenesulfonic acid is pure
Degree >=99.9%.
4. nitrogen oxygen separating carrier phenol formaldehyde foam products according to claim 1, it is characterised in that: the foaming agent is positive penta
Alkane, n-hexane or isopentane.
5. nitrogen oxygen separating carrier phenol formaldehyde foam products according to claim 1, it is characterised in that: the wetting agent is HLB
The surfactant of value 7-9.
6. nitrogen oxygen separating carrier phenol formaldehyde foam products according to claim 1, it is characterised in that: the pore-creating agent be AES,
Neopelex, dish washing liquid etc..
7. a kind of nitrogen oxygen separating carrier phenol formaldehyde foam products preparation method, characterized by the following steps:
Step 1: High Performance Phenolic Resins, foaming agent, wetting agent, pore-creating agent, ethyl alcohol, butanol, sodium butoxide investment are stirred in proportion
It mixes in tank and stirs, it is spare after mixing；
Step 2: mixture is transported to pouring head by conveying pipeline, stirred rapidly with the curing agent in another conveying pipeline
It is poured into the laminating machine heated, presses after even；
Step 3: material is sent to drying chamber, nitrogen oxygen separating carrier phenol formaldehyde foam products are obtained after starting, solidification, molding, demoulding.
8. nitrogen oxygen separating carrier phenol formaldehyde foam products preparation method according to claim 7, it is characterised in that: on laminating machine
Lower surface is covered with recyclable plastics film.
9. nitrogen oxygen separating carrier phenol formaldehyde foam products preparation method according to claim 7, it is characterised in that: drying room temperature
It is 75-85 DEG C, the pipeline length of drying unit is 18 meters, and carrier bar speed is 1.2-1.5m/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910824758.XA CN110498999B (en) | 2019-09-02 | 2019-09-02 | Nitrogen-oxygen separation carrier phenolic foam product and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910824758.XA CN110498999B (en) | 2019-09-02 | 2019-09-02 | Nitrogen-oxygen separation carrier phenolic foam product and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110498999A true CN110498999A (en) | 2019-11-26 |
| CN110498999B CN110498999B (en) | 2022-09-09 |
Family
ID=68591103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910824758.XA Active CN110498999B (en) | 2019-09-02 | 2019-09-02 | Nitrogen-oxygen separation carrier phenolic foam product and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110498999B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4575521A (en) * | 1984-10-30 | 1986-03-11 | Exxon Research And Engineering Company | Closed cell phenolic foams |
| CN1942496A (en) * | 2004-04-23 | 2007-04-04 | 恩琪斯化学公司 | Novel phenolic resins |
| CN102558757A (en) * | 2011-12-30 | 2012-07-11 | 福建天利高新材料有限公司 | Neutral obturator phenolic aldehyde foam plastic and preparation method thereof |
| CN102765201A (en) * | 2012-07-24 | 2012-11-07 | 苏州浩海节能环保材料有限公司 | Continuous processing production line of foamed phenolic insulation boards |
-
2019
- 2019-09-02 CN CN201910824758.XA patent/CN110498999B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4575521A (en) * | 1984-10-30 | 1986-03-11 | Exxon Research And Engineering Company | Closed cell phenolic foams |
| CN1942496A (en) * | 2004-04-23 | 2007-04-04 | 恩琪斯化学公司 | Novel phenolic resins |
| CN102558757A (en) * | 2011-12-30 | 2012-07-11 | 福建天利高新材料有限公司 | Neutral obturator phenolic aldehyde foam plastic and preparation method thereof |
| CN102765201A (en) * | 2012-07-24 | 2012-11-07 | 苏州浩海节能环保材料有限公司 | Continuous processing production line of foamed phenolic insulation boards |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110498999B (en) | 2022-09-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106902778B (en) | A kind of chitosan/oxidized graphene/polyvinyl alcohol cellular composite adsorbing material and preparation method thereof | |
| CN101575418B (en) | Lignin-based high-efficiency water reducing agent with high sulfonation degree and high molecular weight and method for preparing same | |
| CN107790103A (en) | A kind of composite adsorbing material and preparation method thereof | |
| CN107698876A (en) | A kind of modified polypropene VOC extractants and its preparation method and application | |
| RU2004130468A (en) | Phenol Formaldehyde Resins Spray Dry | |
| CN105504507B (en) | A kind of polypropylene drop VOC master batches and its preparation method and application | |
| CN101575391B (en) | Polyvinyl alcohol with low degree of polymerization and alcoholysis method thereof | |
| CN101607178B (en) | Method for preparing hollow fiber porous membrane | |
| CN103435969B (en) | High-strength temperature resistance porous phenolic resin foam and preparation method thereof | |
| CN106432655B (en) | A kind of epoxy soybean oil modified phenolic resin and its preparation method and application | |
| CN102877366B (en) | Method for preparing wet curtain paper | |
| CN110498999A (en) | A kind of nitrogen oxygen separating carrier phenol formaldehyde foam products and preparation method thereof | |
| CN108721949A (en) | A kind of organic silicon defoamer and preparation method thereof | |
| CN102701691B (en) | Heat insulation type tire mold casting gypsum powder and preparation process thereof | |
| CN109575207A (en) | A method of using imidazoles double-core basic functionalized ionic liquid as catalyst preparation phenolic resin microspheres | |
| CN104725647A (en) | Method for preparing urea formaldehyde foam powder for plant culture medium through one-step method | |
| CN106854309A (en) | A kind of low smell modified polypropylene composite material and preparation method thereof | |
| CN106833053A (en) | A kind of wall covering and preparation method thereof | |
| US8569430B2 (en) | Method of spray drying phenol-formaldehyde resin | |
| CN113845723A (en) | Biodegradable plastic and preparation method thereof | |
| CN106674740A (en) | Polypropylene (PP) composite material specially used for packaging bags, and preparation method of PP composite material | |
| CN105153485B (en) | A kind of nano modification glue gel resin and preparation method thereof | |
| CN109575206A (en) | A method of using pyroles acidic ion liquid as catalyst preparation phenolic resin | |
| CN108002732A (en) | A kind of preparation method to tert-butyl benzene sulfonamide type concrete foamer | |
| CN111116130A (en) | Plant growing concrete and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |