CN116375949A - High-low temperature impact resistant thermoplastic acrylic resin and preparation method thereof - Google Patents
High-low temperature impact resistant thermoplastic acrylic resin and preparation method thereof Download PDFInfo
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- CN116375949A CN116375949A CN202310408772.8A CN202310408772A CN116375949A CN 116375949 A CN116375949 A CN 116375949A CN 202310408772 A CN202310408772 A CN 202310408772A CN 116375949 A CN116375949 A CN 116375949A
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- low temperature
- acrylic resin
- temperature impact
- impact resistant
- caprolactone
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- 229920000178 Acrylic resin Polymers 0.000 title claims abstract description 34
- 239000004925 Acrylic resin Substances 0.000 title claims abstract description 34
- 229920001169 thermoplastic Polymers 0.000 title claims abstract description 33
- 239000004416 thermosoftening plastic Substances 0.000 title claims abstract description 33
- 238000002360 preparation method Methods 0.000 title abstract description 9
- 239000000178 monomer Substances 0.000 claims abstract description 19
- 239000003999 initiator Substances 0.000 claims abstract description 14
- -1 caprolactone acrylic ester Chemical class 0.000 claims abstract description 13
- SOGAXMICEFXMKE-UHFFFAOYSA-N Butylmethacrylate Chemical compound CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 claims abstract description 12
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 9
- 239000000375 suspending agent Substances 0.000 claims abstract description 9
- 238000000576 coating method Methods 0.000 claims abstract description 7
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000011248 coating agent Substances 0.000 claims abstract description 6
- 239000008367 deionised water Substances 0.000 claims abstract description 6
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 6
- 230000008569 process Effects 0.000 claims abstract description 5
- PAPBSGBWRJIAAV-UHFFFAOYSA-N ε-Caprolactone Chemical compound O=C1CCCCCO1 PAPBSGBWRJIAAV-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000003054 catalyst Substances 0.000 claims abstract description 3
- 238000007142 ring opening reaction Methods 0.000 claims abstract description 3
- 239000000203 mixture Substances 0.000 claims description 10
- 238000006116 polymerization reaction Methods 0.000 claims description 9
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 8
- 239000011324 bead Substances 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 6
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 claims description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 4
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 3
- 239000011780 sodium chloride Substances 0.000 claims description 3
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 claims description 3
- 229920002818 (Hydroxyethyl)methacrylate Polymers 0.000 claims description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 2
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 claims description 2
- GNSFRPWPOGYVLO-UHFFFAOYSA-N 3-hydroxypropyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCCO GNSFRPWPOGYVLO-UHFFFAOYSA-N 0.000 claims description 2
- QZPSOSOOLFHYRR-UHFFFAOYSA-N 3-hydroxypropyl prop-2-enoate Chemical compound OCCCOC(=O)C=C QZPSOSOOLFHYRR-UHFFFAOYSA-N 0.000 claims description 2
- 239000004342 Benzoyl peroxide Substances 0.000 claims description 2
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 2
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 claims description 2
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 2
- 229910000019 calcium carbonate Inorganic materials 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
- 239000001095 magnesium carbonate Substances 0.000 claims description 2
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims description 2
- GJBRNHKUVLOCEB-UHFFFAOYSA-N tert-butyl benzenecarboperoxoate Chemical compound CC(C)(C)OOC(=O)C1=CC=CC=C1 GJBRNHKUVLOCEB-UHFFFAOYSA-N 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 125000005397 methacrylic acid ester group Chemical group 0.000 claims 1
- 239000000853 adhesive Substances 0.000 abstract description 10
- 230000001070 adhesive effect Effects 0.000 abstract description 10
- 230000015572 biosynthetic process Effects 0.000 abstract description 7
- 239000003973 paint Substances 0.000 abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052802 copper Inorganic materials 0.000 abstract description 4
- 239000010949 copper Substances 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 abstract description 2
- 238000004132 cross linking Methods 0.000 abstract description 2
- 230000003670 easy-to-clean Effects 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 230000008439 repair process Effects 0.000 abstract description 2
- 239000011347 resin Substances 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 description 16
- 229920001610 polycaprolactone Polymers 0.000 description 6
- 239000004632 polycaprolactone Substances 0.000 description 6
- 229920000058 polyacrylate Polymers 0.000 description 5
- 239000000047 product Substances 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical compound C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 238000003618 dip coating Methods 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000005028 tinplate Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- JHPBZFOKBAGZBL-UHFFFAOYSA-N (3-hydroxy-2,2,4-trimethylpentyl) 2-methylprop-2-enoate Chemical compound CC(C)C(O)C(C)(C)COC(=O)C(C)=C JHPBZFOKBAGZBL-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- 229910018557 Si O Inorganic materials 0.000 description 1
- 229920006243 acrylic copolymer Polymers 0.000 description 1
- 229920006397 acrylic thermoplastic Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010382 chemical cross-linking Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- RZFODFPMOHAYIR-UHFFFAOYSA-N oxepan-2-one;prop-2-enoic acid Chemical compound OC(=O)C=C.O=C1CCCCCO1 RZFODFPMOHAYIR-UHFFFAOYSA-N 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Inorganic materials [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/01—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to unsaturated polyesters
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyesters Or Polycarbonates (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses a high-low temperature impact resistant thermoplastic acrylic resin and a preparation method thereof, wherein the resin is prepared from caprolactone acrylic ester, methyl methacrylate, butyl methacrylate, deionized water, an initiator and a suspending agent, wherein the caprolactone acrylic ester is prepared by ring-opening epsilon-caprolactone under specific catalyst and process conditions by taking hydroxyl-containing acrylic monomer as an initiator. The high-low temperature impact resistant thermoplastic acrylic resin prepared by the invention has excellent high-low temperature impact resistant performance after film formation, and a paint film does not crack, fall off and the like after 50 times of impact at the temperature of-60-125 ℃; the adhesive has excellent adhesive force to metal base materials such as tin plates, copper plates and the like, and the adhesive force of a cross-hatch method can reach 1 level; the film is a thermoplastic coating after film formation, has no further crosslinking, is easy to clean and repair, has no pot life and proportion, and is convenient to construct.
Description
Technical Field
The invention relates to the field of coatings, in particular to a high-low temperature impact resistant thermoplastic acrylic resin and a preparation method thereof.
Background
Acrylic resins have been widely used in many fields because of their excellent properties such as gloss retention, color retention, water resistance, chemical resistance, and weather resistance. According to the film forming mechanism, different acrylic resins can be divided into thermosetting acrylic resin and thermoplastic acrylic resin, the thermoplastic acrylic resin is volatilized by a solvent to form a film, and no further chemical crosslinking is generated during film forming, and an insoluble crosslinked network is not formed, so that the film forming agent has the advantages of low curing stress, small volume shrinkage, quick drying, convenient construction, easiness in recoating, reworkability and the like. However, there are also some disadvantages such as poor adhesion to polar substrates, high viscosity for application, poor solvent release, i.e., hot tack and cold brittle, i.e., tacky at high temperature and brittle at low temperature. Solves the problems of hot adhesion, cold brittleness and low adhesion to polar base materials of thermoplastic acrylic resin after film formation, and can widen the application range of the polymer temperature by increasing the molecular weight of the polymer. The preparation method and application of the organic silicon modified acrylic resin monomer composition can also be modified by polymer molecular structure, such as patent CN 202211148060. Patent CN202211292616 discloses a thermoplastic acrylic resin modified by filler or polyvinyl furan acid ester and a preparation method thereof. Patent CN202210232002 discloses a caprolactone-modified acrylic resin.
In the technical scheme, the molecular weight of the polymer is increased, so that the heat resistance of the acrylic polymer can be improved to a certain extent, but the construction viscosity is increased, the single-pass coating thickness is thinner, and the defects of bubbles, pinholes and the like are easily generated in a paint film after the single-pass coating, so that the coating performance is influenced. The organosilicon modified acrylic resin can improve the high and low temperature resistance of the polymer by introducing Si-O bonds which have higher bond energy and can rotate freely into the molecular structure of the polymer, but the dielectric property of the polymer after film formation is poor, the adhesive force to a substrate is not improved, and only the preparation of monomers is disclosed. The heat resistance of the polymer is improved by the filler or the polyethylene furan acid ester modified thermoplastic acrylic resin, and the low temperature resistance and the high and low temperature impact performance of the polymer are not improved. The caprolactone modified acrylic resin mentioned in the patent CN202210232002 is prepared by introducing caprolactone units into a main chain of a polymer molecular chain, and the introduction of the caprolactone unit structure can reduce the glass transition temperature Tg value of the acrylic polymer, so that the flexibility of the polymer can be improved, but the high-low temperature impact performance of the thermoplastic polymer is not obviously improved.
Disclosure of Invention
The invention aims to provide a high-low temperature impact resistant thermoplastic acrylic resin and a preparation method thereof. The self-made caprolactone acrylate functional monomer is copolymerized with the commercially available acrylate or methacrylate monomer, and a highly ordered polycaprolactone structural unit is introduced into a side chain of a thermoplastic acrylic polymer molecule, so that the thermoplastic acrylic polymer forms a microscopic heterogeneous structure in the film forming process, multiple damping effects can be generated for different temperature areas, the effects of releasing internal stress and relieving microcracks are achieved under different temperature environments, the high-low temperature impact resistance of the thermoplastic acrylic resin is further improved, and meanwhile, the adhesive force of the thermoplastic acrylic polymer to a polar substrate is improved due to the existence of a side chain hydroxyl group.
The invention provides a high-low temperature impact resistant thermoplastic acrylic resin which comprises the following components in parts by weight:
the caprolactone acrylic ester is a self-made functional monomer, and the functional monomer is an acrylic acid or methacrylic ester macromonomer containing terminal hydroxyl; the method is characterized in that the hydroxyl-containing acrylic acid monomer is used as an initiator, and ring-opening epsilon-caprolactone is obtained under specific catalyst and process conditions; the initiator is any one of hydroxyethyl acrylate, hydroxypropyl acrylate, hydroxyethyl methacrylate and hydroxypropyl methacrylate; the polymerization degree n of the caprolactone acrylic ester is 2-15, the length of the polycaprolactone structural unit corresponding to the excessive polymerization degree is too long, and the polymer is softer and is easy to be sticky at high temperature; too small a polymerization degree makes the polycaprolactone structural unit too short in length, which is unfavorable for forming microphase separation structures.
The initiator is any one of azodiisobutyronitrile, benzoyl peroxide and tert-butyl benzoyl peroxide.
The suspending agent is a mixture of partially hydrolyzed polyvinyl alcohol and any one or more of sodium chloride, precipitated calcium phosphate, barium sulfate, calcium carbonate and magnesium carbonate; the suspending agent adopts an organic and inorganic mixture, so that the polymerization reaction and the product stability are effectively controlled; the control range of the suspending agent dosage ensures the stability of the reaction and the product, is easy to remove, and reduces the influence on the performance of the final product.
A second aspect provides a method for preparing the high-low temperature impact resistant thermoplastic acrylic resin:
mixing caprolactone acrylic ester, methyl methacrylate and butyl methacrylate with an initiator according to the formula amount, and uniformly stirring to obtain a mixture called a monomer phase; the mixture obtained by uniformly mixing deionized water and a suspending agent is called a disperse phase; adding the disperse phase into a 1L four-neck flask, dripping the monomer phase which is uniformly stirred into the disperse phase at the stirring speed of 250-500 rpm, and introducing N 2 After 3-4 h of protection, after the dripping is finished, the reaction is carried out for 2h at the temperature of 50-110 ℃, the monomer is polymerized into small beads, after the polymerization is finished, the small beads are cooled to room temperature, washed by dilute sulfuric acid, centrifugally separated and dried, and the colorless transparent beads and the thermoplastic acrylic resin with high and low temperature impact resistance are obtained.
In the preparation process, the molecular weight and molecular weight distribution of the thermoplastic acrylic copolymer are controlled by controlling the process conditions such as the polymerization temperature (50-110 ℃), the stirring speed (250-500 rpm) and the like.
The polycaprolactone structural unit in the prepared high-low temperature impact resistant thermoplastic acrylic resin is positioned on the side chain of the macromolecular chain of the thermoplastic acrylic resin, and is favorable for forming a microscopic heterogeneous structure after film formation; the microscopic heterogeneous structure generates multiple damping effects aiming at different temperature areas, so that the high-low temperature impact resistance of the polymer is improved; the side chain of the polycaprolactone structural unit contains a terminal hydroxyl group, so that the adhesion of the thermoplastic acrylic resin to the polar substrate is improved; the polymer with over high polycaprolactone structural unit content in the high-low temperature impact resistant thermoplastic acrylic resin is softer and is easy to be sticky at high temperature; conversely, too low is unfavorable for forming microphase separation structures.
The beneficial effects of the invention are as follows:
the high-low temperature impact resistant thermoplastic acrylic resin prepared by the invention has excellent high-low temperature impact resistant performance after film formation, and a paint film does not crack, fall off and the like after 50 times of impact at the temperature of-60-125 ℃; the adhesive has excellent adhesive force to metal base materials such as tin plates, copper plates and the like, and the adhesive force of a cross-hatch method can reach 1 level; the film is a thermoplastic coating after film formation, has no further crosslinking, is easy to clean and repair, has no pot life and proportion, and is convenient to construct.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, based on the examples herein, which are within the scope of the invention, will be within the purview of one of ordinary skill in the art without the exercise of inventive faculty.
Embodiment one:
caprolactone acrylic ester, methyl methacrylate and butyl methacrylate are mixed with an initiator according to the formula amount, and the initiator is fully dissolved in the monomer. A mixture of deionized water and suspending agent was added to a 1L four-necked flask. Dropping the monomer phase into the disperse phase under stirring, protecting by N2, maintaining the temperature for 2h after 3h dropping, reacting at 85 deg.C and 350rpm, cooling to room temperature, washing with dilute sulfuric acid, centrifuging, and drying to obtain colorless and transparent bead product. The polymer has a molecular weight of 114029, is dissolved by a solvent to dip-coating viscosity, and is respectively coated on a tinplate and a copper plate, the adhesive force is 1 level, and a paint film does not crack or fall after 50 times of impact at the temperature of-60-125 ℃.
Embodiment two:
| raw material name | Additive amount (g) |
| Caprolactone acrylic ester | 72 |
| Methyl methacrylate | 240 |
| Butyl methacrylate | 168 |
| Deionized water | 320 |
| Azobisisobutyronitrile | 6.5 |
| Polyvinyl alcohol (degree of hydrolysis 70%) | 5 |
| Precipitated calcium phosphate | 5 |
| Sodium chloride | 2 |
Caprolactone acrylic ester, methyl methacrylate and butyl methacrylate are mixed with an initiator according to the formula amount, and the initiator is fully dissolved in the monomer. A mixture of deionized water and suspending agent was added to a 1L four-necked flask. Dropping the monomer phase into the disperse phase while stirring, and introducing N 2 And (3) protecting, after the dripping is finished, carrying out heat preservation reaction for 2 hours, wherein the polymerization reaction temperature is 105 ℃, the stirring speed is 400rpm, cooling to room temperature, washing with dilute sulfuric acid, carrying out centrifugal separation, and drying to obtain a colorless and transparent bead product. The polymer has a molecular weight of 103825, is dissolved by a solvent to dip-coating viscosity, and is respectively coated on a tinplate and a copper plate, wherein the adhesive force is 1 level, and a paint film does not crack or fall after 50 times of impact at the temperature of minus 60 ℃ to 125 ℃.
The present disclosure has been described with respect to the above-described embodiments, however, the above-described embodiments are merely examples of implementation of the present disclosure. It must be noted that the disclosed embodiments do not limit the scope of the present disclosure. Rather, the foregoing is considered to be illustrative, and it is to be understood that the invention is not limited to the specific details disclosed herein.
Claims (6)
1. A high-low temperature impact resistant thermoplastic acrylic resin is characterized in that: the coating comprises the following components in parts by weight:
the caprolactone acrylic ester is acrylic acid or methacrylic acid ester macromonomer containing terminal hydroxyl.
2. The high and low temperature impact resistant thermoplastic acrylic resin according to claim 1, wherein: the polymerization degree n of the caprolactone acrylic ester is 2-15.
3. The high and low temperature impact resistant thermoplastic acrylic resin according to claim 1, wherein: the caprolactone acrylic ester is prepared by ring-opening epsilon-caprolactone by taking hydroxyl-containing acrylic acid monomer as an initiator under specific catalyst and process conditions; the initiator is any one of hydroxyethyl acrylate, hydroxypropyl acrylate, hydroxyethyl methacrylate and hydroxypropyl methacrylate.
4. The high and low temperature impact resistant thermoplastic acrylic resin according to claim 1, wherein: the initiator is any one of azodiisobutyronitrile, benzoyl peroxide and tert-butyl benzoyl peroxide.
5. The high and low temperature impact resistant thermoplastic acrylic resin according to claim 1, wherein: the suspending agent is a mixture of partially hydrolyzed polyvinyl alcohol and any one or more of sodium chloride, precipitated calcium phosphate, barium sulfate, calcium carbonate and magnesium carbonate.
6. The method for producing a high and low temperature impact resistant thermoplastic acrylic resin according to any one of claims 1 to 5, characterized in that: mixing caprolactone acrylic ester, methyl methacrylate and butyl methacrylate with an initiator according to the formula amount, and uniformly stirring to obtain a mixture called a monomer phase; the mixture obtained by uniformly mixing deionized water and a suspending agent is called a disperse phase; adding the disperse phase into a 1L four-neck flask, dripping the monomer phase which is uniformly stirred into the disperse phase at the stirring speed of 250-500 rpm, and introducing N 2 After 3-4 h of protection, after the dripping is finished, the reaction is carried out for 2h at the temperature of 50-110 ℃, the monomer is polymerized into small beads, after the polymerization is finished, the small beads are cooled to room temperature, washed by dilute sulfuric acid, centrifugally separated and dried, and the colorless transparent beads and the thermoplastic acrylic resin with high and low temperature impact resistance are obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310408772.8A CN116375949A (en) | 2023-04-17 | 2023-04-17 | High-low temperature impact resistant thermoplastic acrylic resin and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310408772.8A CN116375949A (en) | 2023-04-17 | 2023-04-17 | High-low temperature impact resistant thermoplastic acrylic resin and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN116375949A true CN116375949A (en) | 2023-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310408772.8A Pending CN116375949A (en) | 2023-04-17 | 2023-04-17 | High-low temperature impact resistant thermoplastic acrylic resin and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116375949A (en) |
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- 2023-04-17 CN CN202310408772.8A patent/CN116375949A/en active Pending
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