CN103881004A - Composite foaming method for preparing porous acrylic resin - Google Patents
Composite foaming method for preparing porous acrylic resin Download PDFInfo
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- CN103881004A CN103881004A CN201410098879.8A CN201410098879A CN103881004A CN 103881004 A CN103881004 A CN 103881004A CN 201410098879 A CN201410098879 A CN 201410098879A CN 103881004 A CN103881004 A CN 103881004A
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- 239000002131 composite material Substances 0.000 title claims abstract description 41
- 239000004925 Acrylic resin Substances 0.000 title claims abstract description 34
- 229920000178 Acrylic resin Polymers 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000005187 foaming Methods 0.000 title claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000002245 particle Substances 0.000 claims abstract description 20
- 239000003999 initiator Substances 0.000 claims abstract description 19
- 239000000178 monomer Substances 0.000 claims abstract description 15
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000004088 foaming agent Substances 0.000 claims abstract description 9
- 239000000126 substance Substances 0.000 claims abstract description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 7
- 238000006243 chemical reaction Methods 0.000 claims abstract description 6
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 25
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical group [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 21
- 238000009835 boiling Methods 0.000 claims description 14
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 12
- 239000013543 active substance Substances 0.000 claims description 12
- 229910017053 inorganic salt Inorganic materials 0.000 claims description 12
- 239000003381 stabilizer Substances 0.000 claims description 12
- 239000007789 gas Substances 0.000 claims description 8
- 239000003960 organic solvent Substances 0.000 claims description 8
- -1 120~130 parts Substances 0.000 claims description 7
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 6
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims description 4
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 230000033116 oxidation-reduction process Effects 0.000 claims description 4
- LCPVQAHEFVXVKT-UHFFFAOYSA-N 2-(2,4-difluorophenoxy)pyridin-3-amine Chemical group NC1=CC=CN=C1OC1=CC=C(F)C=C1F LCPVQAHEFVXVKT-UHFFFAOYSA-N 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Substances [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 claims description 3
- PODWXQQNRWNDGD-UHFFFAOYSA-L sodium thiosulfate pentahydrate Chemical compound O.O.O.O.O.[Na+].[Na+].[O-]S([S-])(=O)=O PODWXQQNRWNDGD-UHFFFAOYSA-L 0.000 claims description 3
- OBVDANUWTSVXRO-UHFFFAOYSA-N 2,3,3-trihydroxyprop-2-enoic acid Chemical compound OC(O)=C(O)C(O)=O OBVDANUWTSVXRO-UHFFFAOYSA-N 0.000 claims description 2
- IVKNZCBNXPYYKL-UHFFFAOYSA-N 2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[4-(2,4,4-trimethylpentan-2-yl)phenoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethanol Chemical compound CC(C)(C)CC(C)(C)C1=CC=C(OCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO)C=C1 IVKNZCBNXPYYKL-UHFFFAOYSA-N 0.000 claims description 2
- 239000004160 Ammonium persulphate Substances 0.000 claims description 2
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims description 2
- 239000004971 Cross linker Substances 0.000 claims description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 2
- 239000002202 Polyethylene glycol Substances 0.000 claims description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 2
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 claims description 2
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 claims description 2
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical group [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 2
- 239000004141 Sodium laurylsulphate Substances 0.000 claims description 2
- DPDMMXDBJGCCQC-UHFFFAOYSA-N [Na].[Cl] Chemical group [Na].[Cl] DPDMMXDBJGCCQC-UHFFFAOYSA-N 0.000 claims description 2
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 2
- 235000019395 ammonium persulphate Nutrition 0.000 claims description 2
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims description 2
- STVZJERGLQHEKB-UHFFFAOYSA-N ethylene glycol dimethacrylate Chemical compound CC(=C)C(=O)OCCOC(=O)C(C)=C STVZJERGLQHEKB-UHFFFAOYSA-N 0.000 claims description 2
- 229910052731 fluorine Inorganic materials 0.000 claims description 2
- 239000011737 fluorine Substances 0.000 claims description 2
- 239000001095 magnesium carbonate Substances 0.000 claims description 2
- 235000014380 magnesium carbonate Nutrition 0.000 claims description 2
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims description 2
- 229960001708 magnesium carbonate Drugs 0.000 claims description 2
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims description 2
- 229910001629 magnesium chloride Inorganic materials 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 claims description 2
- 229920001223 polyethylene glycol Polymers 0.000 claims description 2
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims description 2
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 claims description 2
- 235000019333 sodium laurylsulphate Nutrition 0.000 claims description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical group [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims description 2
- 238000010521 absorption reaction Methods 0.000 abstract description 9
- 239000007788 liquid Substances 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000012216 screening Methods 0.000 abstract description 2
- 239000003431 cross linking reagent Substances 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 238000012797 qualification Methods 0.000 abstract 1
- 239000011347 resin Substances 0.000 description 12
- 229920005989 resin Polymers 0.000 description 12
- 239000002250 absorbent Substances 0.000 description 7
- 230000002745 absorbent Effects 0.000 description 7
- PQUXFUBNSYCQAL-UHFFFAOYSA-N 1-(2,3-difluorophenyl)ethanone Chemical compound CC(=O)C1=CC=CC(F)=C1F PQUXFUBNSYCQAL-UHFFFAOYSA-N 0.000 description 4
- 229940047670 sodium acrylate Drugs 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000002504 physiological saline solution Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
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Abstract
The invention discloses a composite foaming method for preparing porous acrylic resin, which comprises the following steps: (1) under the protection of nitrogen, mixing an acrylic monomer, a cross-linking agent, a composite foaming agent, an initiator and water, adding an alkaline substance to ensure that the neutralization degree of the acrylic monomer is 60-85%, and then carrying out polymerization foaming for 0.5-2 hours at 40-70 ℃ to form gel; (2) mincing gel prepared by polymerization foaming reaction to prepare particles with the particle size of 2-10 mm; (3) drying the particles prepared in the step (2) at 100-200 ℃, crushing and screening particles with the particle size of 0.15-0.80 mm to obtain the porous acrylic resin; the method has the advantages of mild reaction, simple process and environmental protection, and the prepared product obviously improves the liquid absorption rate and has high qualification rate.
Description
(1) technical field
The present invention relates to the foaming method of resin, be specifically related to a kind of composite foamed method of multi-hole type acrylic resin, this multi-hole type acrylic resin has high-hydroscopicity.
(2) background technology
High-hydroscopicity sodium acrylate resin is a kind of crosslinked, functional high molecule material with three-dimensional network, and it can absorb hundred times of own wt, the even water of thousand times, and after water suction, water conservation is effective, even if it is a lot of also can not run off the in the situation that of pressurization.Owing to having good performance, it is widely used in baby's diaper, feminine hygiene articles and medical carrier etc.But due to domestic absorbent resin starting evening, compared with abroad, have a lot of defects, such as production cost is high, absorption salt ratio is low, whiteness is poor etc., especially rate of water absorption is slow.And the rate of water absorption very important index that is super absorbent resin.
The present invention is directed to the slow problem of rate of water absorption, a kind of get everything ready super absorbent resin of vesicular structure of novel composite foamed legal system that adopts has been proposed, by changing the water sucting mode of resin, become diffusion and kapillary acting in conjunction from the diffusion of former water, significantly improve its rate of water absorption.
(3) summary of the invention
The problem existing in order to solve existing super absorbent resin, the invention provides a kind of NEW TYPE OF COMPOSITE foaming method of preparing porous sodium acrylate resin, and the multi-hole type acrylic resin making has high-hydroscopicity.
The present invention adopts following technical scheme:
Prepare a composite foamed method for multi-hole type acrylic resin, described composite foamed method is carried out as follows:
(1), under nitrogen protection, Acrylic Acid Monomer, linking agent, composite foamable agent, initiator and water are mixed, and be 60%～85% by adding alkaline matter to make the degree of neutralization of Acrylic Acid Monomer, then polymerization foaming becomes gel for 0.5～2 hour at 40～70 DEG C; Described alkaline matter is the oxyhydroxide such as sodium hydroxide, potassium hydroxide; The quality proportioning of each material is: 100 parts of Acrylic Acid Monomers, 0.08～0.8 part of linking agent, 1～10 part of composite foamable agent, 0.05～0.50 part of initiator, 120～130 parts, water; Described composite foamable agent is selected from tensio-active agent, inorganic salt suds-stabilizing agent, boiling point and is the organic solvent of 55～100 DEG C, can produces two kinds or the mixture of two or more arbitrary proportions in the chemical foaming agent of gas with acid-respons;
(2) gel polymerization foamable reaction in step (1) being made rubs makes the particle that particle diameter is 2～10mm;
(3) particle making in step (2) be dry, pulverize and screen the particle that particle diameter is 0.15～0.80mm, the multi-hole type acrylic resin described in obtaining through 100～200 DEG C.
The present invention prepares the composite foamed method of multi-hole type acrylic resin, in described step (1), preferably described alkaline matter is sodium hydroxide, recommend first sodium hydroxide to be mixed with the aqueous solution of 30wt%～35wt%, in being used further to and Acrylic Acid Monomer, the degree of neutralization that makes Acrylic Acid Monomer is 60%～85%.
The present invention prepares the composite foamed method of multi-hole type acrylic resin, wherein said linking agent is selected from N, the mixed cross-linker of a kind of in the two acrylic amine of N '-methyne, polyethylene glycol dimethacrylate, trihydroxy-acrylate or wherein two kinds and two or more arbitrary proportions;
Initiator of the present invention is oxidation-reduction type initiator, described oxidation-reduction type initiator by be oxidized initiator and reduction initiator in mass ratio 1:1 mix, wherein, described oxidation initiator is selected from Sodium Persulfate or ammonium persulphate, and described reduction initiator is selected from S-WAT, sodium bisulfite or Sulfothiorine;
The present invention prepares the composite foamed method of multi-hole type acrylic resin, and described composite foamable agent is selected from one of following combination:
1. be the organic solvent of 55～100 DEG C by tensio-active agent, inorganic salt suds-stabilizing agent, boiling point and can produce the composite foamable agent that the chemical foaming agent of gas forms with acid-respons;
2. the composite foamable agent being formed by tensio-active agent and inorganic salt suds-stabilizing agent;
3. by tensio-active agent, inorganic salt suds-stabilizing agent with can produce the composite foamable agent that the chemical foaming agent of gas forms with acid-respons;
4. the composite foamable agent that the organic solvent that is 55～100 DEG C by tensio-active agent, inorganic salt suds-stabilizing agent and boiling point forms.
Further, tensio-active agent of the present invention is sodium lauryl sulphate, Sodium dodecylbenzene sulfonate, OP-10 or cetyl trimethylammonium bromide; Described inorganic salt suds-stabilizing agent is sodium-chlor, Repone K or magnesium chloride; Described boiling point is that to be selected from boiling point be that aliphatic hydrocarbon, the boiling point of 62 DEG C～98 DEG C is that the fluorine-containing aliphatic hydrocarbon of 55 DEG C～75 DEG C or boiling point are the chloride aliphatic hydrocarbon of 61 DEG C～100 DEG C to the organic solvent of 55～100 DEG C; The described chemical foaming agent that can produce gas with acid-respons is sodium bicarbonate, volatile salt or magnesiumcarbonate.
Compared with prior art, the present invention has following beneficial effect:
1, the invention discloses a kind of preparation method of porous sodium acrylate resin, can realize production serialization, improve production capacity, can solve the slow problem of the ubiquitous rate of liquid aspiration of domestic absorbent resin.If domestic certain company is in the patent of invention of application in 2011, the rate of water absorption of the porous sodium acrylate super absorbent resin of preparation is in 30s left and right, and the rate of water absorption of this product has been brought up to 20s, significantly improve rate of liquid aspiration, product performance are improved greatly.Also there is following advantage in simultaneously the present invention: conforming product rate is high, reaction temperature and, technique is simple, the three wastes of generation are few, environmental friendliness.
2, the multi-hole type acrylic resin of preparing by the present invention, has good suction physiological saline rate, rate of liquid aspiration fast, can be used for hygienic articles and absorbs fast water, urine and blood.
(4) brief description of the drawings
Fig. 1 is the SEM microscopic appearance (× 200) of the acrylic resin that makes of embodiment 1;
Fig. 2 is the SEM microscopic appearance (× 200) of the acrylic resin that makes of embodiment 2;
Fig. 3 is the SEM microscopic appearance (× 200) of the acrylic resin that makes of embodiment 3;
Fig. 4 is the SEM microscopic appearance (× 200) of the acrylic resin that makes of embodiment 4;
Fig. 5 is the SEM microscopic appearance (× 200) of the acrylic resin that makes of embodiment 5;
Fig. 6 is the SEM microscopic appearance (× 200) of the acrylic resin that makes of embodiment 6.
(5) embodiment
Below by embodiment, technical scheme of the present invention is further described in detail, but protection scope of the present invention is not limited to this.
Embodiment 1～6
The aqueous sodium hydroxide solution 130g of 35wt% is added in 500mL there-necked flask, pass into nitrogen, be placed in the thermostat water bath of 40 DEG C, dropwise splash into Acrylic Acid Monomer 100g with dividing potential drop funnel.Then add 40mL distilled water, 0.80g N, the two acrylic amine of N '-methyne and composite foamable agent, the consumption that the concrete composite foamable agent of embodiment 1～6 is prepared burden is in table 1.Now monomer solution remains on 40 DEG C.Temperature is elevated to 50 DEG C, adds polymerization starter, be i.e. the each 0.8g of the aqueous solution of 10wt% Sodium Persulfate and Sulfothiorine.Reaction 30min, takes out polymeric gel.Be cut into small-particle with scissors, then put into mincer, make the particle that the more uniform particle diameter of size is 2～10mm.
The particle that is 2～10mm by above-mentioned particle diameter, in 120 DEG C of air dry ovens, dries and within 5 hours, obtains dry granules, then uses medicinal herb grinder, or other Highefficientpulverizers are pulverized.After pulverizing, screening 30～100 object resins.
The Performance Detection of the resin that embodiment 1～6 makes is as shown in table 2, as can be seen from the table, the water absorbent rate of the resin making in embodiment 1 and suction salt solution multiplying power are the highest, and its rate of water absorption improves obviously, foreshorten to 20s by original 50s, correspondingly tap density is reduced to 0.62g/mL by 0.87g/mL.Meanwhile, by scanning electron microscopic observation, the microscopic appearance of the resin that embodiment 1～6 makes is as shown in Fig. 1～Fig. 6, and as seen from the figure, the Kongzui of the acrylic resin that embodiment 1 makes is many, and embodiment 3 is more than embodiment 2 holes, the basic atresia of embodiment 6.
The charging capacity of table 1 embodiment 1～6 composite foamable agent batching
The water absorbing properties of the acrylic resin that table 2 embodiment 1～6 makes and tap density
Claims (9)
1. prepare a composite foamed method for multi-hole type acrylic resin, the composite foamed method described in it is characterized in that is carried out as follows:
(1), under nitrogen protection, Acrylic Acid Monomer, linking agent, composite foamable agent, initiator and water are mixed, and be 60%～85% by adding alkaline matter to make the degree of neutralization of Acrylic Acid Monomer, then polymerization foaming becomes gel for 0.5～2 hour at 40～70 DEG C; Described alkaline matter is sodium hydroxide or potassium hydroxide; The quality proportioning of each material is: 100 parts of Acrylic Acid Monomers, 0.08～0.8 part of linking agent, 1～10 part of composite foamable agent, 0.05～0.50 part of initiator, 120～130 parts, water; Described composite foamable agent is selected from tensio-active agent, inorganic salt suds-stabilizing agent, boiling point and is the organic solvent of 55～100 DEG C, can produces two kinds or the mixture of two or more arbitrary proportions in the chemical foaming agent of gas with acid-respons;
(2) gel polymerization foamable reaction in step (1) being made rubs makes the particle that particle diameter is 2～10mm;
(3) particle making in step (2) be dry, pulverize and screen the particle that particle diameter is 0.15～0.80mm, the multi-hole type acrylic resin described in obtaining through 100～200 DEG C.
2. the composite foamed method of preparing multi-hole type acrylic resin as claimed in claim 1, it is characterized in that described alkaline matter is sodium hydroxide, and for and when Acrylic Acid Monomer, first sodium hydroxide is mixed with to the aqueous solution of 30wt%～35wt%, in being used further to and Acrylic Acid Monomer, the degree of neutralization that makes Acrylic Acid Monomer is 60%～85%.
3. the composite foamed method of preparing multi-hole type acrylic resin as claimed in claim 1, it is characterized in that described linking agent is selected from N, the mixed cross-linker of a kind of in the two acrylic amine of N '-methyne, polyethylene glycol dimethacrylate, trihydroxy-acrylate or wherein two kinds and two or more arbitrary proportions.
4. the composite foamed method of preparing multi-hole type acrylic resin as claimed in claim 1, it is characterized in that described initiator is oxidation-reduction type initiator, described oxidation-reduction type initiator by be oxidized initiator and reduction initiator in mass ratio 1:1 mix, wherein, described oxidation initiator is selected from Sodium Persulfate or ammonium persulphate, and described reduction initiator is selected from S-WAT, sodium bisulfite or Sulfothiorine.
5. the composite foamed method of preparing multi-hole type acrylic resin as claimed in claim 1, is characterized in that described composite foamable agent is selected from one of following combination:
1. be the organic solvent of 55～100 DEG C by tensio-active agent, inorganic salt suds-stabilizing agent, boiling point and can produce the composite foamable agent that the chemical foaming agent of gas forms with acid-respons;
2. the composite foamable agent being formed by tensio-active agent and inorganic salt suds-stabilizing agent;
3. by tensio-active agent, inorganic salt suds-stabilizing agent with can produce the composite foamable agent that the chemical foaming agent of gas forms with acid-respons;
4. the composite foamable agent that the organic solvent that is 55～100 DEG C by tensio-active agent, inorganic salt suds-stabilizing agent and boiling point forms.
6. the composite foamed method of preparing multi-hole type acrylic resin as claimed in claim 5, is characterized in that described tensio-active agent is sodium lauryl sulphate, Sodium dodecylbenzene sulfonate, OP-10 or cetyl trimethylammonium bromide.
7. the composite foamed method of preparing multi-hole type acrylic resin as claimed in claim 5, is characterized in that described boiling point is that to be selected from boiling point be that aliphatic hydrocarbon, the boiling point of 62 DEG C～98 DEG C is that the fluorine-containing aliphatic hydrocarbon of 55 DEG C～75 DEG C or boiling point are the chloride aliphatic hydrocarbon of 61 DEG C～100 DEG C for the organic solvent of 55～100 DEG C.
8. the composite foamed method of preparing multi-hole type acrylic resin as claimed in claim 5, is characterized in that described inorganic salt suds-stabilizing agent is sodium-chlor, Repone K or magnesium chloride.
9. the composite foamed method of preparing multi-hole type acrylic resin as claimed in claim 5, is characterized in that the described chemical foaming agent that can produce gas with acid-respons is sodium bicarbonate, volatile salt or magnesiumcarbonate.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106279494A (en) * | 2015-05-12 | 2017-01-04 | 万华化学集团股份有限公司 | A kind of acrylic absorbent resin of high rate of liquid aspiration and its production and use |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106279494A (en) * | 2015-05-12 | 2017-01-04 | 万华化学集团股份有限公司 | A kind of acrylic absorbent resin of high rate of liquid aspiration and its production and use |
| CN106279494B (en) * | 2015-05-12 | 2018-06-12 | 万华化学集团股份有限公司 | A kind of acrylic absorbent resin of high rate of liquid aspiration and its preparation method and application |
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Application publication date: 20140625 |