CN111057324A - Environment-friendly PS plastic flame-retardant master batch - Google Patents
Environment-friendly PS plastic flame-retardant master batch Download PDFInfo
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- CN111057324A CN111057324A CN201911350474.8A CN201911350474A CN111057324A CN 111057324 A CN111057324 A CN 111057324A CN 201911350474 A CN201911350474 A CN 201911350474A CN 111057324 A CN111057324 A CN 111057324A
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- 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
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
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- 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
- C08J2425/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
- C08J2425/02—Homopolymers or copolymers of hydrocarbons
- C08J2425/04—Homopolymers or copolymers of styrene
- C08J2425/06—Polystyrene
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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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
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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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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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
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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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
- C08K5/00—Use of organic ingredients
- C08K5/01—Hydrocarbons
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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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
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Abstract
The invention discloses an environment-friendly PS plastic flame-retardant master batch, which belongs to the technical field of flame-retardant master batch production, and is prepared from the following raw materials in parts by weight: 30-55 parts of MHB, 25-50 parts of PS, 2-5 parts of diphenyl butane flame retardant, 2-5 parts of nano aluminum hydroxide, 2-5 parts of nano magnesium hydroxide, 3-5 parts of polyethylene wax, 3-5 parts of heat stabilizer and 3-7 parts of lubricant. The flame-retardant PS plastic obtained by adopting the nitrogen flame retardant MHB does not contain organic bromine compounds, is an environment-friendly plastic flame-retardant master batch, is flame-retardant by mixing nano aluminum hydroxide and nano magnesium hydroxide into the flame-retardant master batch, is flame-retardant in a synergistic manner with MHB and diphenylbutane flame retardants, and has better flame-retardant effect by virtue of organic combination and synergistic action of all components.
Description
Technical Field
The invention relates to the technical field of flame-retardant master batch production, and particularly relates to an environment-friendly PS plastic flame-retardant master batch.
Background
The PS foam plastic is taken as the main heat-insulating material of the external wall of the building in China, and occupies more than 80 percent of the heat-insulating market, but the flame-retardant problem is always a factor for limiting the application of the PS foam plastic to other fields because the PS foam plastic is inflammable and has high combustion speed. The flame-retardant brominated flame retardant and the flame-retardant master batch thereof applied to the PS foam plastic are superior to numerous flame-retardant products, account for more than 80 percent of the flame retardant of the PS foam plastic, but generate a large amount of toxic smog and carcinogenic dioxin in the flame-retardant process, cause harm to human bodies, and are not suitable for production and use. In recent years, with the improvement of environmental protection consciousness, environment-friendly plastic flame-retardant master batches have become a trend of flame-retardant technology development.
Melamine flame retardant is an important nitrogen flame retardant, and most of the nitrogen flame retardant is decomposed into NH by heating3、N2、NO2And the like, nontoxic and low-corrosion gas, and also has the functions of absorbing heat, reducing temperature and diluting combustible free radicals and gas. The flame retardant master batch has strong flame retardant property, the high molecular weight polymeric structure of the flame retardant master batch is not easy to generate biological accumulation, the pressure of the product in the aspect of environmental protection is avoided, molten drops are not generated during combustion, compact carbon residue is formed after combustion, further combustion is prevented, the oxygen index of an added product is improved, and the fireproof capacity and the grade of the added product are increased, so that the research on the use of the novel environment-friendly flame retardant master batch with good flame retardant effect to replace the traditional flame retardant master batch is necessary.
Disclosure of Invention
The invention provides an environment-friendly PS plastic flame-retardant master batch, which adopts a nitrogen flame retardant MHB, the obtained flame-retardant PS plastic does not contain an organic bromine compound, and is the environment-friendly plastic flame-retardant master batch.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
an environment-friendly PS plastic flame-retardant master batch is prepared from the following raw materials in parts by weight: 30-55 parts of MHB, 78-50 parts of PS25, 2-5 parts of a diphenylbutane flame retardant, 2-5 parts of nano aluminum hydroxide, 2-5 parts of nano magnesium hydroxide, 3-5 parts of polyethylene wax, 3-5 parts of a heat stabilizer and 3-7 parts of a lubricant.
Preferably, the environment-friendly PS plastic flame-retardant master batch is prepared from the following raw materials in parts by weight: 42 parts of MHB, 35 parts of PS, 3 parts of diphenyl butane flame retardant, 3 parts of nano aluminum hydroxide, 3 parts of nano magnesium hydroxide, 4 parts of polyethylene wax, 4 parts of heat stabilizer and 5 parts of lubricant.
Preferably, the diphenyl butane flame retardant is 2, 3-dimethyl-2, 3 diphenyl butane.
Preferably, the heat stabilizer is barium stearate.
Preferably, the lubricant is calcium stearate.
The addition amount of the prepared flame-retardant master batch in PS plastic is 1-6 wt%.
The beneficial effects of the invention are as follows:
the flame-retardant master batch adopts a nitrogen flame retardant MHB, is applied to flame retardance of PS (polystyrene) plastics, has a good flame-retardant effect, and the obtained flame-retardant PS plastics do not contain organic bromine compounds and can completely pass SGS and REACH standard tests; by doping nano aluminum hydroxide and nano magnesium hydroxide into the flame-retardant master batch, the impact resistance of the material can be improved, the flame-retardant master batch can be flame-retardant in a synergistic manner with MHB and diphenylbutane flame retardants, and the flame-retardant master batch has a good flame-retardant effect by virtue of organic combination and synergistic action of all components; the diphenyl butane flame retardant can increase the flame retardant effect, increase the physical and mechanical properties of the plastic while reducing the dosage of the flame retardant, play a role in synergistic flame retardance, and enable the PS plastic to reach a high flame retardant grade under the condition of less addition of the flame retardant; the heat stabilizer can improve the heat stability of the flame-retardant master batch; the polyethylene wax has excellent cold resistance, heat resistance, chemical resistance and wear resistance, and can increase the luster and the processing performance of products.
Detailed Description
To facilitate understanding of those skilled in the art, the present invention will be further described with reference to specific examples:
example 1:
an environment-friendly PS plastic flame-retardant master batch is prepared from the following raw materials in parts by weight: 42 parts of MHB, 35 parts of PS, 3 parts of diphenyl butane flame retardant, 3 parts of nano aluminum hydroxide, 3 parts of nano magnesium hydroxide, 4 parts of polyethylene wax, 4 parts of heat stabilizer and 5 parts of lubricant.
The diphenyl butane flame retardant is 2, 3-dimethyl-2, 3 diphenyl butane. The heat stabilizer is barium stearate. The lubricant is calcium stearate.
The preparation method of the environment-friendly PS plastic flame-retardant master batch comprises the following steps:
(1) weighing various raw materials according to the weight parts;
(2) mixing the weighed raw materials together, and stirring to uniformly disperse the raw materials for later use;
(3) preheating and heating a pre-prepared double-screw extruder to control the temperature of each area to be between 140 ℃ and 170 ℃, then starting a motor, adding the mixed materials for extrusion processing, and carrying out air-cooled conveying, grain-sized dicing, blow-drying, sieving and blow-drying on the extruded materials through a stainless steel mesh belt to obtain the flame-retardant master batch.
Example 2
An environment-friendly PS plastic flame-retardant master batch is prepared from the following raw materials in parts by weight: 30 parts of MHB, 50 parts of PS, 2 parts of diphenyl butane flame retardant, 2 parts of nano aluminum hydroxide, 2 parts of nano magnesium hydroxide, 3 parts of polyethylene wax, 3 parts of heat stabilizer and 3 parts of lubricant.
The diphenyl butane flame retardant is 2, 3-dimethyl-2, 3 diphenyl butane. The heat stabilizer is barium stearate. The lubricant is calcium stearate.
The preparation method of the environment-friendly PS plastic flame-retardant master batch comprises the following steps:
(1) weighing various raw materials according to the weight parts;
(2) mixing the weighed raw materials together, and stirring to uniformly disperse the raw materials for later use;
(3) preheating and heating a pre-prepared double-screw extruder to control the temperature of each area to be between 140 ℃ and 170 ℃, then starting a motor, adding the mixed materials for extrusion processing, and carrying out air-cooled conveying, grain-sized dicing, blow-drying, sieving and blow-drying on the extruded materials through a stainless steel mesh belt to obtain the flame-retardant master batch.
Example 3
An environment-friendly PS plastic flame-retardant master batch is prepared from the following raw materials in parts by weight: 55 parts of MHB, 25 parts of PS, 5 parts of diphenyl butane flame retardant, 5 parts of nano aluminum hydroxide, 5 parts of nano magnesium hydroxide, 5 parts of polyethylene wax, 5 parts of heat stabilizer and 7 parts of lubricant.
The diphenyl butane flame retardant is 2, 3-dimethyl-2, 3 diphenyl butane. The heat stabilizer is barium stearate. The lubricant is calcium stearate.
The preparation method of the environment-friendly PS plastic flame-retardant master batch comprises the following steps:
(1) weighing various raw materials according to the weight parts;
(2) mixing the weighed raw materials together, and stirring to uniformly disperse the raw materials for later use;
(3) preheating and heating a pre-prepared double-screw extruder to control the temperature of each area to be between 140 ℃ and 170 ℃, then starting a motor, adding the mixed materials for extrusion processing, and carrying out air-cooled conveying, grain-sized dicing, blow-drying, sieving and blow-drying on the extruded materials through a stainless steel mesh belt to obtain the flame-retardant master batch.
Example 4
An environment-friendly PS plastic flame-retardant master batch is prepared from the following raw materials in parts by weight: 40 parts of MHB, 35 parts of PS, 4 parts of diphenyl butane flame retardant, 3 parts of nano aluminum hydroxide, 4 parts of nano magnesium hydroxide, 4 parts of polyethylene wax, 5 parts of heat stabilizer and 6 parts of lubricant.
The diphenyl butane flame retardant is 2, 3-dimethyl-2, 3 diphenyl butane. The heat stabilizer is barium stearate. The lubricant is calcium stearate.
The preparation method of the environment-friendly PS plastic flame-retardant master batch comprises the following steps:
(1) weighing various raw materials according to the weight parts;
(2) mixing the weighed raw materials together, and stirring to uniformly disperse the raw materials for later use;
(3) preheating and heating a pre-prepared double-screw extruder to control the temperature of each area to be between 140 ℃ and 170 ℃, then starting a motor, adding the mixed materials for extrusion processing, and carrying out air-cooled conveying, grain-sized dicing, blow-drying, sieving and blow-drying on the extruded materials through a stainless steel mesh belt to obtain the flame-retardant master batch.
The flame-retardant master batch prepared in the example 1 is added into PS plastic in different addition amounts, the raw materials are uniformly mixed and then extruded and granulated by a double screw at 170 ℃, the material is subjected to injection molding at 200 ℃ and finally injection molded into standard sample strips with the sizes of (3.2mm, 1.6mm and 0.8mm) in an injection molding machine. The flame retardant performance was tested based on the flame retardant standard method of UL94, and the flame retardant rating was evaluated, and the specific data and test results are shown in table 1.
TABLE 1 test results of PS plastic sample strip combustion of flame-retardant master batches with different contents
| Addition amount of flame-retardant master batch/%) | LOI/％ | UL94 level |
| 0 | 15.0 | Without hierarchy |
| 1 | 30.0 | V-2 |
| 2 | 31.6 | V-1 |
| 3 | 33.4 | V-0 |
| 4 | 35.6 | V-0 |
As can be seen from Table 1, when the addition amount of the flame-retardant master batch is more than 1%, the flame-retardant effect is more than 30%, and when the addition amount of the flame-retardant master batch is more than 3%, the flame-retardant master batch reaches V-0 grade of UL94 grade, so that the flame-retardant effect is very good.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the present invention as defined in the accompanying claims.
Claims (5)
1. The environment-friendly PS plastic flame-retardant master batch is characterized by being prepared from the following raw materials in parts by weight: 30-55 parts of MHB, 25-50 parts of PS, 2-5 parts of diphenyl butane flame retardant, 2-5 parts of nano aluminum hydroxide, 2-5 parts of nano magnesium hydroxide, 3-5 parts of polyethylene wax, 3-5 parts of heat stabilizer and 3-7 parts of lubricant.
2. The environment-friendly PS plastic flame-retardant master batch according to claim 1, which is prepared from the following raw materials in parts by weight: 42 parts of MHB, 35 parts of PS, 3 parts of diphenyl butane flame retardant, 3 parts of nano aluminum hydroxide, 3 parts of nano magnesium hydroxide, 4 parts of polyethylene wax, 4 parts of heat stabilizer and 5 parts of lubricant.
3. The environmentally friendly PS plastic flame retardant masterbatch of claim 1, wherein the diphenylbutane flame retardant is 2, 3-dimethyl-2, 3-diphenylbutane.
4. The environmentally friendly PS plastic flame retardant masterbatch of claim 1, wherein the heat stabilizer is barium stearate.
5. The environmentally friendly PS plastic flame retardant masterbatch of claim 1, wherein the lubricant is calcium stearate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911350474.8A CN111057324A (en) | 2019-12-24 | 2019-12-24 | Environment-friendly PS plastic flame-retardant master batch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911350474.8A CN111057324A (en) | 2019-12-24 | 2019-12-24 | Environment-friendly PS plastic flame-retardant master batch |
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| Publication Number | Publication Date |
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| CN111057324A true CN111057324A (en) | 2020-04-24 |
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| CN201911350474.8A Withdrawn CN111057324A (en) | 2019-12-24 | 2019-12-24 | Environment-friendly PS plastic flame-retardant master batch |
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- 2019-12-24 CN CN201911350474.8A patent/CN111057324A/en not_active Withdrawn
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Application publication date: 20200424 |