CN113801453A - Halogen-free flame-retardant transparent PC material and product thereof - Google Patents
Halogen-free flame-retardant transparent PC material and product thereof Download PDFInfo
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- CN113801453A CN113801453A CN202010536227.3A CN202010536227A CN113801453A CN 113801453 A CN113801453 A CN 113801453A CN 202010536227 A CN202010536227 A CN 202010536227A CN 113801453 A CN113801453 A CN 113801453A
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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
- C08K5/5399—Phosphorus bound to nitrogen
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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
- C08K5/54—Silicon-containing compounds
- C08K5/541—Silicon-containing compounds containing oxygen
- C08K5/5425—Silicon-containing compounds containing oxygen containing at least one C=C bond
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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
- C08L2201/10—Transparent films; Clear coatings; Transparent materials
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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
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Abstract
The invention relates to the technical field of high polymer materials, and particularly discloses a halogen-free flame-retardant transparent PC material and a product thereof, wherein the halogen-free flame-retardant transparent PC material comprises the following components in parts by mass per 100 parts by mass of a PC material finished product: 90-93 parts of polycarbonate; 6.1-8.2 parts of a flame retardant; the flame retardant is one or a plurality of combinations of phenoxy cyclophosphazene and vinyl phenyl silane; and 0.05 to 0.1 portion of anti-dripping agent. By utilizing the halogen-free flame-retardant transparent PC material and the product thereof, the problems that the PC material cannot reach the flame-retardant grade of 0.2mmVTM-0 and the light transmittance is reduced to below 70 percent are solved, the PC material has good flame retardance, and the good physical properties of the PC material are reserved.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of high polymer materials, in particular to a halogen-free flame-retardant transparent PC material and a product thereof.
[ background of the invention ]
The flame retardant rating, namely the property of a substance or the material after treatment for obviously delaying the flame spread, is classified according to the rating system, the flame retardant rating UL94 is the most widely applied standard for the flammability performance of plastic materials, and is used for evaluating the capability of the material to extinguish after being ignited, and the halogen-free flame retardant material is nonvolatile and does not generate corrosive gas during combustion. The anti-dripping agent utilizes the fiberization and thermal shrinkage of the product in plastic processing to achieve the effects of flame retardance and anti-dripping.
Light transmittance is a physical term that expresses the ability of light to pass through a medium and is the percentage of the amount of light that passes through a transparent or translucent body as compared to the amount of light that it enters. When the pseudo-beam parallel monochromatic light passes through a uniform and non-scattering medium, part of the light is absorbed, part of the light passes through the medium, and part of the light is reflected by the surface of the medium. The light transmittance may represent the efficiency of transmitting light of a display device or the like, which directly affects the visual effect of the touch screen. Yellowness index, which refers to the degree to which a polymeric material deviates from white, or yellows, can be used to control certain product qualities or the degree of aging.
The PC has a flame retardant rating of V-2 and a light transmittance of 89%, and is widely applied to optical films and extrusion materials, however, under the condition that the PC material has a flame retardant requirement, the light transmittance of the PC material can be reduced to below 70%, and the flame retardant rating of the PC material cannot reach 0.2 mmVTM-0.
In view of the above, there is a need to provide a halogen-free flame retardant transparent PC material and a product thereof, so as to solve the problem that the transmittance of the PC material is reduced to below 70% due to the flame retardant requirement of PC.
[ summary of the invention ]
The invention aims to provide a halogen-free flame-retardant transparent PC material and a product thereof, and aims to solve the problem that the light transmittance of the PC material is reduced to below 70% due to the flame-retardant requirement of PC.
In order to achieve the purpose, the invention provides a halogen-free flame-retardant transparent PC material, wherein each 100 parts by mass of a PC material finished product comprises the following components in parts by mass:
90-93 parts of polycarbonate;
6.1-8.2 parts of a flame retardant; the flame retardant is one or a plurality of combinations of phenoxy cyclophosphazene and vinyl phenyl silane; and
0.05 to 0.1 portion of anti-dripping agent.
Optionally, the polycarbonate is bisphenol a type linear polycarbonate, the polycarbonate is synthesized by using a phosgene method, and the polycarbonate has a weight average molecular weight of 30000-50000 and a molecular weight distribution of 1-2.
Optionally, the PC raw material is tested by using a D65 light source, and the D65 light source tests that the yellow index of the PC raw material at 1.0mm is below 5 and the refractive index is between 1.59 and 1.593.
Optionally, the phosphazene structure in the flame retardant is phenoxy cyclophosphazene, the phosphorus content of the flame retardant is greater than 13%, the nitrogen content of the flame retardant is greater than 5.8%, the concentration of the hetero ions is less than 0.01%, the weight average molecular weight is 693, and the purity of the flame retardant is greater than 99%.
Optionally, the molecular weight of the vinyl phenyl silane is 2000-3000, the melting temperature is 35-50 ℃, and the mass fraction of the gel is below 0.1%.
Optionally, in 100 parts by mass of the finished PC material, the addition amount of the phenoxy cyclophosphazene is 6-8 parts by mass, and the addition amount of the vinylphenyl silane is 0.1-0.2 part by mass.
Optionally, the anti-dripping agent is a coated anti-dripping agent, the particle size of the coated anti-dripping agent is less than 400nm, and the coating content of the coated anti-dripping agent is 50%.
The invention also provides a product prepared from the halogen-free flame-retardant transparent PC material.
Compared with the prior art, the halogen-free flame-retardant transparent PC material and the product thereof are prepared by adding the compounded phosphazene flame retardant, vinyl phenyl silane and SAN coated anti-dripping agent into the PC material, wherein the PC material is a 0.2mmVTM-0 halogen-free flame-retardant PC transparent material with the light transmittance of more than 75%, and the PC material has good flame-retardant and anti-dripping effects by adding the anti-dripping agent.
[ detailed description ] embodiments
The invention provides a halogen-free flame-retardant transparent PC material, wherein each 100 parts by mass of a PC material finished product comprises the following components in parts by mass:
90-93 parts of polycarbonate;
6.1-8.2 parts of a flame retardant; the flame retardant is one or a plurality of combinations of phenoxy cyclophosphazene and vinyl phenyl silane; and
0.05 to 0.1 portion of anti-dripping agent.
The polycarbonate is bisphenol A type linear polycarbonate, the polycarbonate is synthesized by using a phosgene method, and the weight average molecular weight of the polycarbonate is 30000-50000 and the molecular weight distribution of the polycarbonate is 1-2.
The PC raw material is tested by using a D65 light source, and the D65 light source tests that the yellow index of 1.0mm of the PC raw material is below 5 and the refractive index of the PC raw material is between 1.59 and 1.593.
The phosphorus-nitrogen alkene structure in the flame retardant is phenoxy cyclophosphazene, the phosphorus content of the flame retardant is more than 13%, the nitrogen content of the flame retardant is more than 5.8%, the concentration of hetero ions is less than 0.01%, the weight average molecular weight is 693, and the purity of the flame retardant is more than 99%.
Wherein the molecular weight of the vinyl phenyl silane is 2000-3000, the melting temperature is 35-50 ℃, and the mass fraction of the gel is below 0.1%.
The addition amount of the phenoxy cyclophosphazene is 6-8 parts by mass, and the addition amount of the vinyl phenyl silane is 0.1-0.2 part by mass in 100 parts by mass of the PC material finished product.
The anti-dripping agent is a coated anti-dripping agent, the particle size of the anti-dripping agent is below 400nm, the coating content of the coated anti-dripping agent is 50%, and the anti-dripping agent has the characteristics of fiberization and thermal shrinkage of a PC material in plastic processing and achieves the effects of flame retardance and anti-dripping.
The invention also provides a product prepared from the halogen-free flame-retardant transparent PC material, wherein a proper amount of flame retardant and anti-dripping agent are added in the preparation process, so that the PC material has good flame retardance, the light transmittance of the PC material is not reduced under the flame-retardant condition, and meanwhile, the PC material reaches the halogen-free flame-retardant grade of 0.2mmVTM-0 and the light transmittance is more than 75%.
The technical solution of the present invention is further explained by the following embodiments.
Example 1
Every 100 parts by mass of a finished PC material product comprises 91.8 parts of polycarbonate, 8 parts of phenoxy cyclophosphazene, 0.1 part of vinyl phenyl siloxane and 0.1 part of anti-dripping agent. The polycarbonate is bisphenol A type linear polycarbonate and synthesized by using a phosgene method, the weight average molecular weight of the polycarbonate is 30000-50000 and the molecular weight distribution is 1-2, a PC raw material is tested by using a D65 light source, the yellow index of 1.0mm is below 5 and the refractive index is 1.59-1.593, the phosphazene structure in the flame retardant is phenoxy cyclophosphazene, the phosphorus content of the flame retardant is more than 13%, the nitrogen content of the flame retardant is more than 5.8%, the concentration of hetero ions is less than 0.01%, the weight average molecular weight is 693 and the purity is more than 99%, the molecular weight of vinyl phenyl silane is 2000-3000, the melting temperature is 35-50 ℃, the mass fraction of gel is below 0.1%, the anti-dripping agent is a coated anti-dripping agent, the particle size of the anti-dripping agent is below 400nm, and the coating content is 50%.
Weighing the components with the corresponding weight, uniformly stirring the components, and adding the components into a double-screw extruder for melt extrusion granulation.
Example 2
Every 100 parts by mass of a finished PC material product comprises 93.7 parts of polycarbonate, 6 parts of phenoxy cyclophosphazene, 0.2 part of vinyl phenyl siloxane and 0.1 part of anti-dripping agent. The polycarbonate is bisphenol A type linear polycarbonate and synthesized by using a phosgene method, the weight average molecular weight of the polycarbonate is 30000-50000 and the molecular weight distribution is 1-2, a PC raw material is tested by using a D65 light source, the yellow index of 1.0mm is below 5 and the refractive index is 1.59-1.593, the phosphazene structure in the flame retardant is phenoxy cyclophosphazene, the phosphorus content of the flame retardant is more than 13%, the nitrogen content of the flame retardant is more than 5.8%, the concentration of hetero ions is less than 0.01%, the weight average molecular weight is 693 and the purity is more than 99%, the molecular weight of vinyl phenyl silane is 2000-3000, the melting temperature is 35-50 ℃, the mass fraction of gel is below 0.1%, the anti-dripping agent is a coated anti-dripping agent, the particle size of the anti-dripping agent is below 400nm, and the coating content is 50%.
Weighing the components with the corresponding weight, uniformly stirring the components, and adding the components into a double-screw extruder for melt extrusion granulation.
Comparative example 1
Every 100 parts by mass of a finished PC material product comprises 88.8 parts of polycarbonate, 11 parts of BDP bisphenol A bis (diphenyl phosphate), 0.1 part of vinyl phenyl siloxane and 0.1 part of anti-dripping agent. The polycarbonate is bisphenol A type linear polycarbonate and synthesized by using a phosgene method, the weight average molecular weight of the polycarbonate is 30000-50000 and the molecular weight distribution is 1-2, a PC raw material is tested by using a D65 light source, the yellow index of 1.0mm is below 5 and the refractive index is 1.59-1.593, the phosphazene structure in the flame retardant is phenoxy cyclophosphazene, the phosphorus content of the flame retardant is more than 13%, the nitrogen content of the flame retardant is more than 5.8%, the concentration of hetero ions is less than 0.01%, the weight average molecular weight is 693 and the purity is more than 99%, the molecular weight of vinyl phenyl silane is 2000-3000, the melting temperature is 35-50 ℃, the mass fraction of gel is below 0.1%, the anti-dripping agent is a coated anti-dripping agent, the particle size of the anti-dripping agent is below 400nm, and the coating content is 50%.
Weighing the components with the corresponding weight, uniformly stirring the components, and adding the components into a double-screw extruder for melt extrusion granulation.
Comparative example 2
Every 100 parts by mass of a finished PC material product comprises 98.7 parts of polycarbonate, 1 part of KSS benzenesulfonyl potassium benzenesulfonate, 0.2 part of vinyl phenyl siloxane and 0.1 part of anti-dripping agent. The polycarbonate is bisphenol A type linear polycarbonate and synthesized by using a phosgene method, the weight average molecular weight of the polycarbonate is 30000-50000 and the molecular weight distribution is 1-2, a PC raw material is tested by using a D65 light source, the yellow index of 1.0mm is below 5 and the refractive index is 1.59-1.593, the phosphazene structure in the flame retardant is phenoxy cyclophosphazene, the phosphorus content of the flame retardant is more than 13%, the nitrogen content of the flame retardant is more than 5.8%, the concentration of hetero ions is less than 0.01%, the weight average molecular weight is 693 and the purity is more than 99%, the molecular weight of vinyl phenyl silane is 2000-3000, the melting temperature is 35-50 ℃, the mass fraction of gel is below 0.1%, the anti-dripping agent is a coated anti-dripping agent, the particle size of the anti-dripping agent is below 400nm, and the coating content is 50%.
Weighing the components with the corresponding weight, uniformly stirring the components, and adding the components into a double-screw extruder for melt extrusion granulation.
After the halogen-free flame-retardant transparent PC materials of the above examples and comparative examples are melt extruded and pelletized, the particles in the examples and comparative examples are injection molded on an injection molding machine to form standard test sample strips, the mechanical properties of the obtained materials are tested according to the standards, and the test results are shown in Table 1:
TABLE 1 test results
Comparing the above examples 1 and 2 with comparative examples 1 and 2, it can be seen that when a certain amount of polycarbonate and anti-dripping agent are added to the PC material, and no compounded flame retardant and phenoxy cyclophosphazene are added, the light transmittance of the PC material is reduced, and the flame retardant rating thereof does not reach VTM-0, and when a certain amount of polycarbonate, anti-dripping agent, KSS potassium phenylsulfonyl benzenesulfonate and vinylphenylsiloxane are added, and no compounded phenoxy cyclophosphazene is added, the flame retardant rating of the PC material reaches VTM-0, but the light transmittance is greatly reduced, and the physical properties thereof are also reduced by more than 10%.
Compared with the prior art, the halogen-free flame-retardant transparent PC material and the product thereof are prepared by adding the compounded phosphazene flame retardant, vinyl phenyl silane and SAN coated anti-dripping agent into the PC material, wherein the PC material is a 0.2mmVTM-0 halogen-free flame-retardant PC transparent material with the light transmittance of more than 75%, and the PC material has good flame-retardant and anti-dripping effects by adding the anti-dripping agent.
The technical principles of the present invention have been described above in connection with specific embodiments, which are intended to explain the principles of the present invention and should not be construed as limiting the scope of the present invention in any way. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.
Claims (8)
1. The halogen-free flame-retardant transparent PC material is characterized in that each 100 parts by mass of a PC material finished product comprises the following components in parts by mass:
90-93 parts of polycarbonate;
6.1-8.2 parts of a flame retardant; the flame retardant is one or a plurality of combinations of phenoxy cyclophosphazene and vinyl phenyl silane; and
0.05 to 0.1 portion of anti-dripping agent.
2. The halogen-free flame-retardant transparent PC material according to claim 1, wherein the polycarbonate is bisphenol A type linear polycarbonate, the polycarbonate is synthesized by using a phosgene method, and the polycarbonate has a weight average molecular weight of 30000-50000 and a molecular weight distribution of 1-2.
3. The halogen-free flame retardant transparent PC material according to claim 1, wherein the PC raw material is tested using a D65 illuminant, and the D65 illuminant tests that the PC raw material has a yellow index of 5 or less and a refractive index of 1.59-1.593 at 1.0 mm.
4. The halogen-free flame-retardant transparent PC material as claimed in claim 1, wherein the phosphazene structure in the flame retardant is phenoxy cyclophosphazene, the phosphorus content of the flame retardant is more than 13%, the nitrogen content of the flame retardant is more than 5.8%, the concentration of the hetero ions is less than 0.01%, the weight average molecular weight is 693, and the purity is more than 99%.
5. The halogen-free flame-retardant transparent PC material according to claim 1, wherein the vinylphenyl silane has a molecular weight of 2000-3000, a melting temperature of 35-50 ℃ and a gel mass fraction of less than 0.1%.
6. The halogen-free flame-retardant transparent PC material according to claim 1, wherein the phenoxy cyclophosphazene is added in an amount of 6-8 parts by mass and the vinylphenyl silane is added in an amount of 0.1-0.2 part by mass in 100 parts by mass of the finished PC material.
7. The halogen-free flame retardant transparent PC material according to claim 1, wherein the anti-dripping agent is a coated anti-dripping agent, the particle size of the coated anti-dripping agent is below 400nm, and the coating content of the coated anti-dripping agent is 50%.
8. The product is characterized by being prepared from the halogen-free flame-retardant transparent PC material.
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| CN202010536227.3A CN113801453B (en) | 2020-06-12 | 2020-06-12 | Halogen-free flame-retardant transparent PC material and product thereof |
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| CN202010536227.3A CN113801453B (en) | 2020-06-12 | 2020-06-12 | Halogen-free flame-retardant transparent PC material and product thereof |
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Citations (5)
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| CN106633747A (en) * | 2015-11-04 | 2017-05-10 | 汉达精密电子(昆山)有限公司 | Glass fiber reinforced polycarbonate composite material with flame-retarding mobility and thermal endurance, and product thereof |
| CN107298837A (en) * | 2016-04-15 | 2017-10-27 | 上海事塔塑料有限公司 | Glass fiber-reinforced polycarbonate resin combination |
| CN108342057A (en) * | 2017-01-23 | 2018-07-31 | 汉达精密电子(昆山)有限公司 | Halogen-free flame retardant PC/PBT alloy and products thereof |
| CN108504063A (en) * | 2017-02-28 | 2018-09-07 | 汉达精密电子(昆山)有限公司 | Halogen-free flame retardant PC/CF composite materials and products thereof |
| CN108504062A (en) * | 2017-02-28 | 2018-09-07 | 汉达精密电子(昆山)有限公司 | Halogen-free flame retardant PC/ABS composite material and products thereof |
-
2020
- 2020-06-12 CN CN202010536227.3A patent/CN113801453B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106633747A (en) * | 2015-11-04 | 2017-05-10 | 汉达精密电子(昆山)有限公司 | Glass fiber reinforced polycarbonate composite material with flame-retarding mobility and thermal endurance, and product thereof |
| CN107298837A (en) * | 2016-04-15 | 2017-10-27 | 上海事塔塑料有限公司 | Glass fiber-reinforced polycarbonate resin combination |
| CN108342057A (en) * | 2017-01-23 | 2018-07-31 | 汉达精密电子(昆山)有限公司 | Halogen-free flame retardant PC/PBT alloy and products thereof |
| CN108504063A (en) * | 2017-02-28 | 2018-09-07 | 汉达精密电子(昆山)有限公司 | Halogen-free flame retardant PC/CF composite materials and products thereof |
| CN108504062A (en) * | 2017-02-28 | 2018-09-07 | 汉达精密电子(昆山)有限公司 | Halogen-free flame retardant PC/ABS composite material and products thereof |
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