CN114605699A - Inorganic novel environment-friendly flame retardant for flame-retardant paper - Google Patents
Inorganic novel environment-friendly flame retardant for flame-retardant paper Download PDFInfo
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- CN114605699A CN114605699A CN202210254379.3A CN202210254379A CN114605699A CN 114605699 A CN114605699 A CN 114605699A CN 202210254379 A CN202210254379 A CN 202210254379A CN 114605699 A CN114605699 A CN 114605699A
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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
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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
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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
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/5205—Salts of P-acids with N-bases
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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
- C08K2003/222—Magnesia, i.e. magnesium oxide
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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
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/322—Ammonium phosphate
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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
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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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
- C08L2201/00—Properties
- C08L2201/22—Halogen free composition
Abstract
The invention discloses an inorganic novel environment-friendly flame retardant for flame-retardant paper, and particularly relates to the field of inorganic flame retardants, wherein the inorganic novel environment-friendly flame retardant comprises the following raw materials in parts by weight: 19-25 parts of ammonium polyphosphate, 0.8-1.5 parts of magnesium hydroxide, 0.6-0.9 part of magnesium oxide, 3.75-5.75 parts of B-type flame retardant and 0.8-1.3 parts of guanidine phosphate, wherein the B-type flame retardant is any one of polypropylene flame retardant, inorganic flame retardant and brominated flame retardant. In the invention, magnesium hydroxide, magnesium oxide and a phosphorus-containing compound are used as main flame retardants, and the magnesium hydroxide releases bound water when being heated and decomposed to be mixed into the air, so that the concentration of combustible gas in the air is changed, and the relevant supplement is provided for the market of inorganic flame retardants; the flame retardant paper has the characteristics of high flame retardant efficiency, no halogen, environmental protection, low smoke, low toxicity and the like, has the capability of improving the insulation strength of the flame retardant paper to a greater extent by adding the components of ammonium polyphosphate, magnesium oxide and guanidine phosphate, has higher production value, use value and application prospect, and reduces the cost of the flame retardant.
Description
Technical Field
The invention relates to the technical field of inorganic flame retardants, in particular to an inorganic novel environment-friendly flame retardant for flame retardant paper.
Background
Flame Retardants (FR) and flame-retardant polymeric materials play an important role in reducing the loss of life and property from fires over 60 years since the 50 s of the 20 th century, and especially over about 30 years since the 80 s of the 20 th century. At present, the total consumption of global FR is second to that of plasticizer in various plastic additives, the development and development of the flame retardant in China will have better broad prospects, the development and innovation capability should be improved, and the development of the flame retardant industry towards environmental protection, low toxicity, high efficiency and multiple functions is promoted.
The varieties and consumption of domestic flame retardants are mainly organic flame retardants, and the production and consumption of inorganic flame retardants are less, but the development momentum is better and the market potential is larger. The most commonly used halogen-based flame retardants among flame retardants have a high efficiency that is not comparable to other flame retardant families, but are not negligibly harmful to the environment and humans. The environmental protection problem is the focus of development of auxiliary agents and attention of application merchants, so that the product structure of the flame retardant is always adjusted at home and abroad, and the development of the high-efficiency environment-friendly flame retardant is increased. Halogen-free, low-smoke and low-toxicity flame retardant is always the target pursued by people, so people show high enthusiasm for non-halogenated development of the flame retardant, invest great force and obtain considerable results.
China is about to develop low-smoke and non-toxic inorganic flame retardant. The magnesium hydroxide has wide application prospect as a halogen-free environment-friendly flame retardant, and needs to increase technical attack and difficulty and reduce production cost and product price in the industry.
Disclosure of Invention
In order to overcome the above defects of the prior art, the embodiments of the present invention provide a novel inorganic environment-friendly flame retardant for flame retardant paper, and the technical problems to be solved by the present invention are: the problems that the existing flame retardant is high in cost, independent research and development-free patent flame retardants are not available, the negative influence of the flame retardant on the electrical strength of paper is large, and the existing flame retardant is easy to absorb moisture and crystallize are solved.
In order to achieve the purpose, the invention provides the following technical scheme: the inorganic novel environment-friendly flame retardant for the flame retardant paper comprises the following raw materials in parts by weight: 19-25 parts of ammonium polyphosphate, 0.8-1.5 parts of magnesium hydroxide, 0.6-0.9 part of magnesium oxide, 3.75-5.75 parts of B-type flame retardant and 0.8-1.3 parts of guanidine phosphate, wherein the B-type flame retardant is any one of polypropylene flame retardant, inorganic flame retardant and brominated flame retardant.
In a preferred embodiment, the composition comprises the following raw materials in parts by weight: 25 parts of ammonium polyphosphate, 0.8 part of magnesium hydroxide, 0.6 part of magnesium oxide, 3.75 parts of B-type flame retardant and 0.8 part of guanidine phosphate, wherein the B-type flame retardant is a bromine-based flame retardant.
In a preferred embodiment, the composition comprises the following raw materials in parts by weight: 22 parts of ammonium polyphosphate, 1.25 parts of magnesium hydroxide, 0.75 part of magnesium oxide, 4.75 parts of B-type flame retardant and 1.15 parts of guanidine phosphate, wherein the B-type flame retardant is a bromine-based flame retardant.
In a preferred embodiment, the composition comprises the following raw materials in parts by weight: 22 parts of ammonium polyphosphate, 1.25 parts of magnesium hydroxide, 0.75 part of magnesium oxide, 4.75 parts of B-type flame retardant and 1.15 parts of guanidine phosphate, wherein the B-type flame retardant is a polypropylene flame retardant.
In a preferred embodiment, the composition comprises the following raw materials in parts by weight: 22 parts of ammonium polyphosphate, 1.25 parts of magnesium hydroxide, 0.75 part of magnesium oxide, 4.75 parts of B-type flame retardant and 1.15 parts of guanidine phosphate, wherein the B-type flame retardant is an inorganic flame retardant.
In a preferred embodiment, the composition comprises the following raw materials in parts by weight: 19 parts of ammonium polyphosphate, 1.5 parts of magnesium hydroxide, 0.9 part of magnesium oxide, 5.75 parts of B-type flame retardant and 1.3 parts of guanidine phosphate, wherein the B-type flame retardant is an inorganic flame retardant.
In a preferred embodiment, the specific processing steps are as follows: preparing ammonium polyphosphate, magnesium hydroxide, magnesium oxide, a B-type flame retardant and guanidine phosphate according to the proportion, uniformly mixing to obtain a mixture, and controlling the mixing temperature to be 55-65 ℃; the mixture is prepared into corresponding concentration for impregnating the flame-retardant paper, and the impregnating temperature of the flame-retardant paper is set to 64-66 ℃.
In a preferred embodiment, the mixing and stirring speed is set to be 80-120r/min, and the mixing time is set to be 8-10 min.
The invention has the technical effects and advantages that:
the flame retardant reagent is a magnesium hydroxide inorganic series flame retardant, and provides related supplement for the inorganic flame retardant market; the flame retardant paper has the characteristics of high flame retardant efficiency, no halogen, environmental protection, low smoke, low toxicity and the like, has the capability of improving the insulation strength of the flame retardant paper to a greater extent by adding the components of ammonium polyphosphate, magnesium oxide and guanidine phosphate, has higher production value, use value and application prospect, and reduces the cost of the flame retardant.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the 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.
A large number of experiments prove that the phosphorus-containing compound and the magnesium compound cannot achieve a good flame-retardant effect when mixed, and the addition of the B-type flame retardant and the guanidine phosphate proves that the excellent flame-retardant effect can be achieved within a certain range, the flame-retardant effect of the reagent can be seriously influenced when the flame retardant is overhigh or overlow on one side outside a set range, and the flame retardant is required to be configured strictly according to the proportion; the invention adopts magnesium hydroxide, magnesium oxide and phosphorus-containing compound as main flame retardant, wherein the magnesium hydroxide is a novel flame retardant, releases bound water when heated and decomposed, combines with water vapor to be mixed into the air, changes the concentration of combustible gas in the air, generates magnesium compound cladding by thermal reaction and absorbs heat on the surface of a material to reduce the surface temperature of the synthetic material in flame, and cools the generated combustible gas; the ammonium polyphosphate generates metaphosphoric acid under the action of heat, and then generates phosphoric acid, so that the surface of the material is carbonized, the ammonium polyphosphate has the effect of inhibiting the decomposition of polymers, and meanwhile, ammonia generated by the ammonium polyphosphate is mixed in air and is combusted to generate nitrogen, so that the concentration of combustible gas in the air is changed, the effect of inhibiting combustion is achieved, the ammonia polyphosphate is suitable for the higher and higher factors of the national requirements on environmental protection, the cost is saved, and the related performance of products is improved.
Example 1:
the invention provides an inorganic novel environment-friendly flame retardant for flame-retardant paper, which comprises the following raw materials in parts by weight: 19-25 parts of ammonium polyphosphate, 0.8-1.5 parts of magnesium hydroxide, 0.6-0.9 part of magnesium oxide, 3.75-5.75 parts of B-type flame retardant and 0.8-1.3 parts of guanidine phosphate, wherein the B-type flame retardant is any one of polypropylene flame retardant, inorganic flame retardant and brominated flame retardant;
the concrete content of the present invention is as follows: 25 parts of ammonium polyphosphate, 0.8 part of magnesium hydroxide, 0.6 part of magnesium oxide, 3.75 parts of B-type flame retardant and 0.8 part of guanidine phosphate, wherein the B-type flame retardant is a bromine flame retardant;
the specific processing steps are as follows: preparing ammonium polyphosphate, magnesium hydroxide, magnesium oxide, a B-type flame retardant and guanidine phosphate according to a proportion, uniformly mixing, setting the mixing and stirring speed to be 100r/min, setting the mixing time to be 9min, and obtaining a mixed material, wherein the mixing temperature is controlled to be 60 ℃; the mixture is prepared into corresponding concentration for impregnating the flame-retardant paper, and the impregnating temperature of the flame-retardant paper is set to 65 ℃.
Example 2:
the invention provides an inorganic novel environment-friendly flame retardant for flame-retardant paper, which comprises the following raw materials in parts by weight: 19-25 parts of ammonium polyphosphate, 0.8-1.5 parts of magnesium hydroxide, 0.6-0.9 part of magnesium oxide, 3.75-5.75 parts of B-type flame retardant and 0.8-1.3 parts of guanidine phosphate, wherein the B-type flame retardant is any one of polypropylene flame retardant, inorganic flame retardant and brominated flame retardant;
the concrete content of the present invention is as follows: 22 parts of ammonium polyphosphate, 1.25 parts of magnesium hydroxide, 0.75 part of magnesium oxide, 4.75 parts of B-type flame retardant and 1.15 parts of guanidine phosphate, wherein the B-type flame retardant is a bromine-based flame retardant;
the specific processing steps are as follows: preparing ammonium polyphosphate, magnesium hydroxide, magnesium oxide, a B-type flame retardant and guanidine phosphate according to a proportion, uniformly mixing, setting the mixing and stirring speed to be 100r/min, setting the mixing time to be 9min, and obtaining a mixed material, wherein the mixing temperature is controlled to be 60 ℃; the mixture is prepared into corresponding concentration for impregnating the flame-retardant paper, and the impregnating temperature of the flame-retardant paper is set to 65 ℃.
Example 3:
the invention provides an inorganic novel environment-friendly flame retardant for flame-retardant paper, which comprises the following raw materials in parts by weight: 19-25 parts of ammonium polyphosphate, 0.8-1.5 parts of magnesium hydroxide, 0.6-0.9 part of magnesium oxide, 3.75-5.75 parts of B-type flame retardant and 0.8-1.3 parts of guanidine phosphate, wherein the B-type flame retardant is any one of polypropylene flame retardant, inorganic flame retardant and brominated flame retardant;
the concrete content of the present invention is as follows: 22 parts of ammonium polyphosphate, 1.25 parts of magnesium hydroxide, 0.75 part of magnesium oxide, 4.75 parts of B-type flame retardant and 1.15 parts of guanidine phosphate, wherein the B-type flame retardant is a polypropylene flame retardant;
the specific processing steps are as follows: preparing ammonium polyphosphate, magnesium hydroxide, magnesium oxide, a B-type flame retardant and guanidine phosphate according to a proportion, uniformly mixing, setting the mixing and stirring speed to be 100r/min, setting the mixing time to be 9min, and obtaining a mixed material, wherein the mixing temperature is controlled to be 60 ℃; the mixture is prepared into corresponding concentration for impregnating the flame-retardant paper, and the impregnating temperature of the flame-retardant paper is set to 65 ℃.
Example 4:
the invention provides an inorganic novel environment-friendly flame retardant for flame-retardant paper, which comprises the following raw materials in parts by weight: 19-25 parts of ammonium polyphosphate, 0.8-1.5 parts of magnesium hydroxide, 0.6-0.9 part of magnesium oxide, 3.75-5.75 parts of B-type flame retardant and 0.8-1.3 parts of guanidine phosphate, wherein the B-type flame retardant is any one of polypropylene flame retardant, inorganic flame retardant and brominated flame retardant;
the concrete content of the present invention is as follows: 22 parts of ammonium polyphosphate, 1.25 parts of magnesium hydroxide, 0.75 part of magnesium oxide, 4.75 parts of B-type flame retardant and 1.15 parts of guanidine phosphate, wherein the B-type flame retardant is an inorganic flame retardant;
the specific processing steps are as follows: preparing ammonium polyphosphate, magnesium hydroxide, magnesium oxide, a B-type flame retardant and guanidine phosphate according to a proportion, uniformly mixing, setting the mixing and stirring speed to be 100r/min, setting the mixing time to be 9min, and obtaining a mixed material, wherein the mixing temperature is controlled to be 60 ℃; the mixture is prepared into corresponding concentration for impregnating the flame-retardant paper, and the impregnating temperature of the flame-retardant paper is set to 65 ℃.
Example 5:
the invention provides an inorganic novel environment-friendly flame retardant for flame-retardant paper, which comprises the following raw materials in parts by weight: 19-25 parts of ammonium polyphosphate, 0.8-1.5 parts of magnesium hydroxide, 0.6-0.9 part of magnesium oxide, 3.75-5.75 parts of B-type flame retardant and 0.8-1.3 parts of guanidine phosphate, wherein the B-type flame retardant is any one of polypropylene flame retardant, inorganic flame retardant and brominated flame retardant;
the concrete content of the present invention is as follows: 19 parts of ammonium polyphosphate, 1.5 parts of magnesium hydroxide, 0.9 part of magnesium oxide, 5.75 parts of B-type flame retardant and 1.3 parts of guanidine phosphate, wherein the B-type flame retardant is an inorganic flame retardant;
the specific processing steps are as follows: preparing ammonium polyphosphate, magnesium hydroxide, magnesium oxide, a B-type flame retardant and guanidine phosphate according to a proportion, uniformly mixing, setting the mixing and stirring speed to be 100r/min, setting the mixing time to be 9min, and obtaining a mixed material, wherein the mixing temperature is controlled to be 60 ℃; the mixture is prepared into corresponding concentration for impregnating the flame-retardant paper, and the impregnating temperature of the flame-retardant paper is set to 65 ℃.
Example 6:
after the highland barley paper is impregnated with the environment-friendly flame retardants prepared in the above examples 1 to 5 respectively prepared into the same concentrations, the highland barley paper impregnated with the flame retardants is tested in five groups (the thickness of the paper is 0.15mm, 0.20mm, 0.25mm, and 0.30mm respectively) to perform flame retardant test, and the following average data are obtained:
as can be seen from the above table, the raw materials in examples 2-4 have moderate mixing proportion, the cost of the existing flame retardant is about 2.66 yuan/kg of flame-retardant solution, the cost of the flame retardant is about 2.3 yuan/kg of flame-retardant solution, and the cost of the flame retardant of the existing flame-retardant paper can be reduced by about 13.5%; can achieve excellent UL 94V-0 flame retardant grade, and has the characteristics of high flame retardant efficiency, no halogen, environmental protection, low smoke and low toxicity.
And finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (8)
1. The inorganic novel environment-friendly flame retardant for the flame retardant paper is characterized in that: the material comprises the following raw materials in parts by weight: 19-25 parts of ammonium polyphosphate, 0.8-1.5 parts of magnesium hydroxide, 0.6-0.9 part of magnesium oxide, 3.75-5.75 parts of B-type flame retardant and 0.8-1.3 parts of guanidine phosphate, wherein the B-type flame retardant is any one of polypropylene flame retardant, inorganic flame retardant and brominated flame retardant.
2. The novel environmental friendly inorganic flame retardant for flame retardant paper according to claim 1, characterized in that: the material comprises the following raw materials in parts by weight: 25 parts of ammonium polyphosphate, 0.8 part of magnesium hydroxide, 0.6 part of magnesium oxide, 3.75 parts of B-type flame retardant and 0.8 part of guanidine phosphate, wherein the B-type flame retardant is a bromine-based flame retardant.
3. The novel environmental friendly inorganic flame retardant for flame retardant paper according to claim 1, characterized in that: the material comprises the following raw materials in parts by weight: 22 parts of ammonium polyphosphate, 1.25 parts of magnesium hydroxide, 0.75 part of magnesium oxide, 4.75 parts of B-type flame retardant and 1.15 parts of guanidine phosphate, wherein the B-type flame retardant is a bromine-based flame retardant.
4. The novel environmental friendly inorganic flame retardant for flame retardant paper according to claim 1, characterized in that: the material comprises the following raw materials in parts by weight: 22 parts of ammonium polyphosphate, 1.25 parts of magnesium hydroxide, 0.75 part of magnesium oxide, 4.75 parts of B-type flame retardant and 1.15 parts of guanidine phosphate, wherein the B-type flame retardant is a polypropylene flame retardant.
5. The novel environmental friendly inorganic flame retardant for flame retardant paper according to claim 1, characterized in that: the material comprises the following raw materials in parts by weight: 22 parts of ammonium polyphosphate, 1.25 parts of magnesium hydroxide, 0.75 part of magnesium oxide, 4.75 parts of B-type flame retardant and 1.15 parts of guanidine phosphate, wherein the B-type flame retardant is an inorganic flame retardant.
6. The novel environmental friendly inorganic flame retardant for flame retardant paper according to claim 1, characterized in that: the material comprises the following raw materials in parts by weight: 19 parts of ammonium polyphosphate, 1.5 parts of magnesium hydroxide, 0.9 part of magnesium oxide, 5.75 parts of B-type flame retardant and 1.3 parts of guanidine phosphate, wherein the B-type flame retardant is an inorganic flame retardant.
7. The novel environmental friendly inorganic flame retardant for flame retardant paper according to any one of claims 1 to 6, characterized in that: the specific processing steps are as follows: preparing ammonium polyphosphate, magnesium hydroxide, magnesium oxide, a B-type flame retardant and guanidine phosphate according to the proportion, uniformly mixing to obtain a mixture, and controlling the mixing temperature to be 55-65 ℃; the mixture is prepared into corresponding concentration for impregnating the flame retardant paper, and the impregnating temperature of the flame retardant paper is set to be 64-66 ℃.
8. The novel environmental friendly inorganic flame retardant for flame retardant paper according to claim 7, characterized in that: the mixing and stirring speed is set to be 80-120r/min, and the mixing time is set to be 8-10 min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210254379.3A CN114605699A (en) | 2022-03-15 | 2022-03-15 | Inorganic novel environment-friendly flame retardant for flame-retardant paper |
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| CN202210254379.3A CN114605699A (en) | 2022-03-15 | 2022-03-15 | Inorganic novel environment-friendly flame retardant for flame-retardant paper |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10183123A (en) * | 1996-12-27 | 1998-07-14 | Sanwa Chem:Kk | Flame retardant composition for paper |
| CN1869113A (en) * | 2006-06-09 | 2006-11-29 | 沈阳化工学院 | Halogenless composite fire retardant for polyolefine plastic |
| CN102746856A (en) * | 2012-06-12 | 2012-10-24 | 宜兴市昌华过滤器材有限公司 | Composite intumescent fire retardant |
-
2022
- 2022-03-15 CN CN202210254379.3A patent/CN114605699A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10183123A (en) * | 1996-12-27 | 1998-07-14 | Sanwa Chem:Kk | Flame retardant composition for paper |
| CN1869113A (en) * | 2006-06-09 | 2006-11-29 | 沈阳化工学院 | Halogenless composite fire retardant for polyolefine plastic |
| CN102746856A (en) * | 2012-06-12 | 2012-10-24 | 宜兴市昌华过滤器材有限公司 | Composite intumescent fire retardant |
Non-Patent Citations (2)
| Title |
|---|
| 周辉;刘忠;魏亚静;: "以氢氧化镁为阻燃剂制备阻燃纸的研究", 中国造纸, no. 01, pages 13 - 16 * |
| 石得中 等: "世界精细化工产品技术经济手册", vol. 1, 化学工业部科学技术情报研究所, pages: 717 * |
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