CN113603995A - Safe flame-retardant acrylic plate and preparation method thereof - Google Patents
Safe flame-retardant acrylic plate and preparation method thereof Download PDFInfo
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- CN113603995A CN113603995A CN202111050068.7A CN202111050068A CN113603995A CN 113603995 A CN113603995 A CN 113603995A CN 202111050068 A CN202111050068 A CN 202111050068A CN 113603995 A CN113603995 A CN 113603995A
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- flame retardant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
- C08L33/10—Homopolymers or copolymers of methacrylic acid esters
- C08L33/12—Homopolymers or copolymers of methyl methacrylate
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- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/2224—Magnesium hydroxide
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- 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
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
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- 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
- C08K2003/321—Phosphates
- C08K2003/324—Alkali metal phosphate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention provides a safe flame-retardant acrylic plate which comprises the following components in parts by weight: 100-500 parts of polymethyl methacrylate, 1-2 parts of initiator, 2-5 parts of composite flame retardant, 3-8 parts of plasticizer and 1-3 parts of release agent. The invention has the advantages that the flame retardant effect of the acrylic plate prepared by the method is obviously improved, and the acrylic plate can be widely applied to the building industry, so that the safety of the building plate is greatly improved.
Description
Technical Field
The invention relates to the technical field of acrylic plates, in particular to a safe flame-retardant acrylic plate and a preparation method thereof.
Background
The acrylic plate is a thermoplastic organic polymer synthetic resin material and is one of three kinds of transparent plastics (PS, PC and PMMA). The acrylic plate is a glass substitute, and even has superior performances such as high strength, difficult breakage, acid and alkali resistance and the like which glass does not have. The product can be widely applied to billboards, commercial display stands, ornaments, doll machines and the like, and even applied to aerospace, aquarium and museum.
However, the acrylic plate has the common defects of most plastics, namely poor thermal stability, and is very easy to cause fire under the high-temperature condition, so that great hidden hazards are brought to the life and property safety of people.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a safe flame-retardant acrylic plate and a preparation method thereof.
The invention solves the technical problems through the following technical means:
a safe flame-retardant acrylic plate comprises the following components in parts by weight: 100-500 parts of polymethyl methacrylate, 1-2 parts of initiator, 2-5 parts of composite flame retardant, 3-8 parts of plasticizer and 1-3 parts of release agent.
Preferably, the preparation method of the composite flame retardant comprises the following steps: adding magnesium hydroxide powder into a sodium hexametaphosphate solution, mixing and stirring, mixing and coating a zinc salt solution and a phosphate solution, dropwise adding a sodium hydroxide solution, filtering, washing and drying a product, and finally carrying out modification treatment by using a coupling agent.
Preferably, the particle size of the magnesium hydroxide powder is less than 10 microns, the concentration of the magnesium hydroxide is 1mol/L, the concentration of a sodium hexametaphosphate solution is 0.1g/L, zinc salt is zinc sulfate, the addition amount of the zinc salt is 10% of the mass of the magnesium hydroxide powder, phosphate is disodium hydrogen phosphate, the addition amount of the phosphate is 15% of the mass of the magnesium hydroxide powder, the addition amount of the sodium hydroxide solution is 1% of the mass of the magnesium hydroxide, the concentration of the sodium hydroxide solution is 0.1mol/L, the coupling agent is a silane coupling agent, an aluminate coupling agent or a phthalate coupling agent, and the modification temperature is 80 ℃.
Preferably, the initiator is one of cumene hydroperoxide, cyclohexanone peroxide and dicyclohexyl peroxydicarbonate.
Preferably, the plasticizer is one of p-xylene dioctyl ester or o-xylene dioctyl ester.
Preferably, the release agent is silicone oil, polyethylene glycol or low molecular weight polyethylene, and the amount of the release agent used is 1-10% of the mass of the polymethyl methacrylate.
A preparation method of a safe flame-retardant acrylic plate comprises the following steps:
s1, preparing raw materials: weighing methyl methacrylate, an initiator, a composite flame retardant, a plasticizer and a release agent according to the parts by weight in the claim 1 for later use;
s2, preparing a composite flame retardant: preparing a modified magnesium hydroxide and zinc phosphate mixture by using a chemical coating method;
s3, mixing materials: mixing and grinding methyl methacrylate, an initiator, a composite flame retardant, a plasticizer and a release agent to obtain a mixture;
s4, preparation of an acrylic plate: and (S3) stirring the mixture obtained in the step (A) for 30min in a stirrer, injecting the mixture into a mold, and heating and molding to obtain the safe flame-retardant acrylic plate.
Preferably, the rotating speed of the stirrer is 300-.
The invention has the advantages that: the acrylic plate prepared by the method has the advantages that the flame retardant effect is remarkably improved, and the acrylic plate can be widely applied to the building industry, so that the safety of the building plate is greatly improved.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A safe flame-retardant acrylic plate comprises the following components in parts by weight: 100g of polymethyl methacrylate, 1g of initiator, 2g of composite flame retardant, 3g of plasticizer and 1g of release agent.
The preparation method of the composite flame retardant comprises the following steps: adding magnesium hydroxide powder into a sodium hexametaphosphate solution, mixing and stirring, mixing and coating a zinc salt solution and a phosphate solution, dropwise adding a sodium hydroxide solution, filtering, washing and drying a product, and finally carrying out modification treatment by using a coupling agent.
The particle size of the magnesium hydroxide powder is less than 10 micrometers, the concentration of the magnesium hydroxide is 1mol/L, the concentration of a sodium hexametaphosphate solution is 0.1g/L, zinc salt is zinc sulfate, the addition amount of the zinc salt is 10% of the mass of the magnesium hydroxide powder, phosphate is disodium hydrogen phosphate, the addition amount of the phosphate is 15% of the mass of the magnesium hydroxide powder, the addition amount of the sodium hydroxide solution is 1% of the mass of the magnesium hydroxide, the concentration of the sodium hydroxide solution is 0.1mol/L, the coupling agent is a silane coupling agent, an aluminate coupling agent or a phthalate coupling agent, and the modification temperature is 80 ℃.
The initiator is one of cumene hydroperoxide, cyclohexanone peroxide and dicyclohexyl peroxydicarbonate.
The plasticizer is one of p-xylene dioctyl ester or o-xylene dioctyl ester.
The release agent is silicone oil, polyethylene glycol and low molecular weight polyethylene, and the using amount of the release agent is 1-10% of the mass of the polymethyl methacrylate.
A preparation method of a safe flame-retardant acrylic plate comprises the following steps:
s1, preparing raw materials: weighing methyl methacrylate, an initiator, a composite flame retardant, a plasticizer and a release agent according to the weight parts for later use;
s2, preparing a composite flame retardant: preparing a modified magnesium hydroxide and zinc phosphate mixture by using a chemical coating method;
s3, mixing materials: mixing and grinding methyl methacrylate, an initiator, a composite flame retardant, a plasticizer and a release agent to obtain a mixture;
s4, preparation of an acrylic plate: and (S3) stirring the mixture obtained in the step (A) for 30min in a stirrer, injecting the mixture into a mold, and heating and molding to obtain the safe flame-retardant acrylic plate.
The rotating speed of the stirrer is 300-1000r/min, and the heating temperature is 40-90 ℃.
Example 2
A safe flame-retardant acrylic plate comprises the following components in parts by weight: 500g of polymethyl methacrylate, 2g of initiator, 5g of composite flame retardant, 8g of plasticizer and 3g of release agent.
The preparation method of the composite flame retardant comprises the following steps: adding magnesium hydroxide powder into a sodium hexametaphosphate solution, mixing and stirring, mixing and coating a zinc salt solution and a phosphate solution, dropwise adding a sodium hydroxide solution, filtering, washing and drying a product, and finally carrying out modification treatment by using a coupling agent.
The particle size of the magnesium hydroxide powder is less than 10 micrometers, the concentration of the magnesium hydroxide is 1mol/L, the concentration of a sodium hexametaphosphate solution is 0.1g/L, zinc salt is zinc sulfate, the addition amount of the zinc salt is 10% of the mass of the magnesium hydroxide powder, phosphate is disodium hydrogen phosphate, the addition amount of the phosphate is 15% of the mass of the magnesium hydroxide powder, the addition amount of the sodium hydroxide solution is 1% of the mass of the magnesium hydroxide, the concentration of the sodium hydroxide solution is 0.1mol/L, the coupling agent is a silane coupling agent, an aluminate coupling agent or a phthalate coupling agent, and the modification temperature is 80 ℃.
The initiator is one of cumene hydroperoxide, cyclohexanone peroxide and dicyclohexyl peroxydicarbonate.
The plasticizer is one of p-xylene dioctyl ester or o-xylene dioctyl ester.
The release agent is silicone oil, polyethylene glycol and low molecular weight polyethylene, and the using amount of the release agent is 1-10% of the mass of the polymethyl methacrylate.
A preparation method of a safe flame-retardant acrylic plate comprises the following steps:
s1, preparing raw materials: weighing methyl methacrylate, an initiator, a composite flame retardant, a plasticizer and a release agent according to the weight parts for later use;
s2, preparing a composite flame retardant: preparing a modified magnesium hydroxide and zinc phosphate mixture by using a chemical coating method;
s3, mixing materials: mixing and grinding methyl methacrylate, an initiator, a composite flame retardant, a plasticizer and a release agent to obtain a mixture;
s4, preparation of an acrylic plate: and (S3) stirring the mixture obtained in the step (A) for 30min in a stirrer, injecting the mixture into a mold, and heating and molding to obtain the safe flame-retardant acrylic plate.
The rotating speed of the stirrer is 300-1000r/min, and the heating temperature is 40-90 ℃.
Example 3
A safe flame-retardant acrylic plate comprises the following components in parts by weight: 300g of polymethyl methacrylate, 1.5g of initiator, 3.5g of composite flame retardant, 5.5g of plasticizer and 2g of release agent.
The preparation method of the composite flame retardant comprises the following steps: adding magnesium hydroxide powder into a sodium hexametaphosphate solution, mixing and stirring, mixing and coating a zinc salt solution and a phosphate solution, dropwise adding a sodium hydroxide solution, filtering, washing and drying a product, and finally carrying out modification treatment by using a coupling agent.
The particle size of the magnesium hydroxide powder is less than 10 micrometers, the concentration of the magnesium hydroxide is 1mol/L, the concentration of a sodium hexametaphosphate solution is 0.1g/L, zinc salt is zinc sulfate, the addition amount of the zinc salt is 10% of the mass of the magnesium hydroxide powder, phosphate is disodium hydrogen phosphate, the addition amount of the phosphate is 15% of the mass of the magnesium hydroxide powder, the addition amount of the sodium hydroxide solution is 1% of the mass of the magnesium hydroxide, the concentration of the sodium hydroxide solution is 0.1mol/L, the coupling agent is a silane coupling agent, an aluminate coupling agent or a phthalate coupling agent, and the modification temperature is 80 ℃.
The initiator is one of cumene hydroperoxide, cyclohexanone peroxide and dicyclohexyl peroxydicarbonate.
The plasticizer is one of p-xylene dioctyl ester or o-xylene dioctyl ester.
The release agent is silicone oil, polyethylene glycol and low molecular weight polyethylene, and the using amount of the release agent is 1-10% of the mass of the polymethyl methacrylate.
A preparation method of a safe flame-retardant acrylic plate comprises the following steps:
s1, preparing raw materials: weighing methyl methacrylate, an initiator, a composite flame retardant, a plasticizer and a release agent according to the weight parts for later use;
s2, preparing a composite flame retardant: preparing a modified magnesium hydroxide and zinc phosphate mixture by using a chemical coating method;
s3, mixing materials: mixing and grinding methyl methacrylate, an initiator, a composite flame retardant, a plasticizer and a release agent to obtain a mixture;
s4, preparation of an acrylic plate: and (S3) stirring the mixture obtained in the step (A) for 30min in a stirrer, injecting the mixture into a mold, and heating and molding to obtain the safe flame-retardant acrylic plate.
The rotating speed of the stirrer is 300-1000r/min, and the heating temperature is 40-90 ℃.
The main chemical components of the magnesium hydroxide pigment powder are magnesium oxide and water (MgO and H2O), the melting point of the magnesium oxide is as high as 3000 ℃ which is a flame retardant material with excellent performance, and the active groups on the surface of the high-purity magnesium hydroxide particles are mainly Mg-O and-OH. The surface of the powder particles is alkaline, the powder particles are firmly combined and coated with the acidic organic surface modifier, and the powder particles are not easy to desorb in the processes of strong stirring and shearing.
The zinc phosphate coated magnesium hydroxide composite inorganic flame retardant prepared by the method can obviously improve the flame retardant efficiency of the composite inorganic flame retardant, and the flame retardant efficiency can be greatly improved by blending the zinc phosphate coated magnesium hydroxide composite inorganic flame retardant into an acrylic plate.
It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. The safe flame-retardant acrylic plate is characterized in that: the components by weight portion are as follows: 100-500 parts of polymethyl methacrylate, 1-2 parts of initiator, 2-5 parts of composite flame retardant, 3-8 parts of plasticizer and 1-3 parts of release agent.
2. The flame retardant type safe acrylic sheet according to claim 1, wherein: the preparation method of the composite flame retardant comprises the following steps: adding magnesium hydroxide powder into a sodium hexametaphosphate solution, mixing and stirring, mixing and coating a zinc salt solution and a phosphate solution, dropwise adding a sodium hydroxide solution, filtering, washing and drying a product, and finally carrying out modification treatment by using a coupling agent.
3. The flame retardant type safe acrylic sheet according to claim 2, wherein: the particle size of the magnesium hydroxide powder is less than 10 micrometers, the concentration of the magnesium hydroxide is 1mol/L, the concentration of a sodium hexametaphosphate solution is 0.1g/L, zinc salt is zinc sulfate, the addition amount of the zinc salt is 10% of the mass of the magnesium hydroxide powder, phosphate is disodium hydrogen phosphate, the addition amount of the phosphate is 15% of the mass of the magnesium hydroxide powder, the addition amount of the sodium hydroxide solution is 1% of the mass of the magnesium hydroxide, the concentration of the sodium hydroxide solution is 0.1mol/L, the coupling agent is a silane coupling agent, an aluminate coupling agent or a phthalate coupling agent, and the modification temperature is 80 ℃.
4. The flame retardant type safe acrylic sheet according to claim 1, wherein: the initiator is one of cumene hydroperoxide, cyclohexanone peroxide and dicyclohexyl peroxydicarbonate.
5. The flame retardant type safe acrylic sheet according to claim 1, wherein: the plasticizer is one of p-xylene dioctyl ester or o-xylene dioctyl ester.
6. The flame retardant type safe acrylic sheet according to claim 1, wherein: the release agent is silicone oil, polyethylene glycol and low molecular weight polyethylene, and the using amount of the release agent is 1-10% of the mass of the polymethyl methacrylate.
7. The method for preparing a safe and flame retardant acrylic plate according to claim 1, wherein the method comprises the following steps: the method comprises the following steps:
s1, preparing raw materials: weighing methyl methacrylate, an initiator, a composite flame retardant, a plasticizer and a release agent according to the parts by weight in the claim 1 for later use;
s2, preparing a composite flame retardant: preparing a modified magnesium hydroxide and zinc phosphate mixture by using a chemical coating method;
s3, mixing materials: mixing and grinding methyl methacrylate, an initiator, a composite flame retardant, a plasticizer and a release agent to obtain a mixture;
s4, preparation of an acrylic plate: and (S3) stirring the mixture obtained in the step (A) for 30min in a stirrer, injecting the mixture into a mold, and heating and molding to obtain the safe flame-retardant acrylic plate.
8. The flame retardant type safe acrylic sheet according to claim 1, wherein: the rotating speed of the stirrer is 300-1000r/min, the water bath heating temperature is 40-90 ℃, and the thickness of the casting plate is 3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111050068.7A CN113603995A (en) | 2021-09-08 | 2021-09-08 | Safe flame-retardant acrylic plate and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111050068.7A CN113603995A (en) | 2021-09-08 | 2021-09-08 | Safe flame-retardant acrylic plate and preparation method thereof |
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| CN113603995A true CN113603995A (en) | 2021-11-05 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114605765A (en) * | 2022-03-30 | 2022-06-10 | 李秋月 | Safe flame-retardant acrylic plate and preparation method thereof |
| CN115109374A (en) * | 2022-08-05 | 2022-09-27 | 安徽迈明亚克力科技有限公司 | High-strength flame-retardant acrylic plate |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101392176A (en) * | 2007-09-21 | 2009-03-25 | 中国矿业大学(北京) | Method for preparing inorganic fire resistant agent with zinc phosphate coating magnesium hydrate |
| CN111825790A (en) * | 2020-07-22 | 2020-10-27 | 安徽新涛光电科技有限公司 | Non-transparent high-heat-resistant flame-retardant acrylic plate and preparation method thereof |
-
2021
- 2021-09-08 CN CN202111050068.7A patent/CN113603995A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101392176A (en) * | 2007-09-21 | 2009-03-25 | 中国矿业大学(北京) | Method for preparing inorganic fire resistant agent with zinc phosphate coating magnesium hydrate |
| CN111825790A (en) * | 2020-07-22 | 2020-10-27 | 安徽新涛光电科技有限公司 | Non-transparent high-heat-resistant flame-retardant acrylic plate and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114605765A (en) * | 2022-03-30 | 2022-06-10 | 李秋月 | Safe flame-retardant acrylic plate and preparation method thereof |
| CN115109374A (en) * | 2022-08-05 | 2022-09-27 | 安徽迈明亚克力科技有限公司 | High-strength flame-retardant acrylic plate |
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Application publication date: 20211105 |
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