CN115960450A - Thin-wall antistatic flame-retardant light-diffusion PC material and preparation method thereof - Google Patents
Thin-wall antistatic flame-retardant light-diffusion PC material and preparation method thereof Download PDFInfo
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- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 81
- 239000003063 flame retardant Substances 0.000 title claims abstract description 79
- 239000000463 material Substances 0.000 title claims abstract description 79
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 238000009792 diffusion process Methods 0.000 title claims description 34
- 239000002216 antistatic agent Substances 0.000 claims abstract description 49
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 35
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 35
- 239000011347 resin Substances 0.000 claims abstract description 27
- 229920005989 resin Polymers 0.000 claims abstract description 27
- 239000000314 lubricant Substances 0.000 claims abstract description 21
- 239000002608 ionic liquid Substances 0.000 claims abstract description 16
- DLIJPAHLBJIQHE-UHFFFAOYSA-N butylphosphane Chemical group CCCCP DLIJPAHLBJIQHE-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 10
- 238000001125 extrusion Methods 0.000 claims abstract description 5
- 239000000203 mixture Substances 0.000 claims description 11
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical group CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 claims description 7
- 125000005010 perfluoroalkyl group Chemical group 0.000 claims description 7
- 229910052710 silicon Inorganic materials 0.000 claims description 7
- 239000010703 silicon Substances 0.000 claims description 7
- -1 silicon modified acrylate Chemical class 0.000 claims description 7
- 238000005303 weighing Methods 0.000 claims description 7
- 229920001296 polysiloxane Polymers 0.000 claims description 4
- 239000000155 melt Substances 0.000 claims description 3
- UEZVMMHDMIWARA-UHFFFAOYSA-M phosphonate Chemical compound [O-]P(=O)=O UEZVMMHDMIWARA-UHFFFAOYSA-M 0.000 claims description 2
- 229920000058 polyacrylate Polymers 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 28
- 238000000354 decomposition reaction Methods 0.000 abstract description 3
- 238000001746 injection moulding Methods 0.000 abstract description 3
- 229920000515 polycarbonate Polymers 0.000 description 73
- 239000004417 polycarbonate Substances 0.000 description 73
- 229920012699 PC light diffusion Polymers 0.000 description 14
- 230000000052 comparative effect Effects 0.000 description 13
- 238000002834 transmittance Methods 0.000 description 9
- 239000004094 surface-active agent Substances 0.000 description 6
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 239000004594 Masterbatch (MB) Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
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- 238000004880 explosion Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
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- 230000002688 persistence Effects 0.000 description 1
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- 238000001179 sorption measurement Methods 0.000 description 1
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Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/54—Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids
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Abstract
The invention discloses a thin-wall antistatic flame-retardant photodiffusion PC material which comprises the following components in percentage by weight: 95-98% of PC resin, 1-3% of antistatic agent, 0.1-0.3% of flame retardant, 0.1-0.3% of light diffusant, 0.1-0.5% of antioxidant and 0.1-0.5% of lubricant. Wherein the antistatic agent is n-butylphosphine bistrifluoromethanesulfonylimide ionic liquid type antistatic agent. The ionic antistatic agent has a better combination effect with the PC base material, one end of the ionic antistatic agent is firmly buried in the PC base material, and the other end of the ionic antistatic agent is close to the surface of the base material, so that the base material has a good permanent antistatic effect. Meanwhile, the ionic liquid antistatic agent shows an antistatic effect through ionic conductivity, can not be influenced by a use environment, and can show excellent antistatic property even in a dry environment; the ionic liquid antistatic agent has higher decomposition temperature, can meet the requirements of blending extrusion and injection molding, and enables the preparation process link of the PC material to be simpler and the cost to be lower.
Description
Technical Field
The invention belongs to the technical field of high polymer materials, and particularly relates to a thin-wall antistatic flame-retardant light diffusion PC material and a preparation method thereof.
Background
The PC light diffuser plate is also called a polycarbonate light diffuser plate, and is also called a PC diffuser plate, a PC light homogenizing plate, a PC diffuse reflection plate, and the like. The optical plate is made of Polycarbonate (PC) as base material and light diffusant. The LED lamp can enable light to uniformly penetrate through the LED lamp without exposing a light source, thereby achieving the special effect of light transmission and opacity. The LED light source is widely applied to the industries of construction, industry, illumination, decoration and the like.
However, the light diffusion effect of the PC plate is more important when the PC light diffusion plate is prepared at present, so that the PC light diffusion plate cannot be widely applied to some special industrial industries. For example, in industries of electronic components, production of flammable and explosive chemicals, etc., a higher demand is being placed on the light diffusion plate. The PC light diffusion plate is required to have an excellent light-transmitting and non-transparent effect so as to protect the production confidentiality of a company on the premise of ensuring that sufficient light can finish a production task; meanwhile, the flame retardant coating also needs to have an excellent flame retardant effect so as to ensure that the flame propagation speed can be reduced even in the case of a small fire when a fire occurs, and the flame retardant coating has an effect of self-extinguishing, so that the effect of guaranteeing the safety of life and property of production personnel and the whole company is achieved; the most important thing is to have excellent antistatic effect, and on one hand, the reduction of the light transmittance of the PC light diffusion plate caused by dust adsorption can be effectively reduced, and the dust-free environment of a workshop is maintained. On the other hand, the safety problems of fire, explosion and the like caused by static electricity can be effectively prevented.
In the prior art, flame retardancy and antistatic effect of the PC light diffuser plate are generally improved by adding a flame retardant and an antistatic agent, but at present, the conventional antistatic agent seriously affects the light transmittance of the PC light diffuser plate after being added into the PC light diffuser plate. The widely used method for improving the antistatic effect of the PC light diffusion plate at present is to spray a water-soluble surfactant on the surface of the PC light diffusion plate to improve the antistatic property of the PC light diffusion plate. The spraying of the water-soluble surfactant can not only improve the antistatic effect of the PC light diffusion plate, but also keep the PC light diffusion plate to have higher light transmittance. However, since the water-soluble surfactant is attached to the surface of the PC light diffuser by spraying, the surfactant will continuously migrate with the increase of the service life, so that the antistatic property of the PC light diffuser can generally be maintained for half a year to one year, and thus the requirements of people cannot be met.
Disclosure of Invention
The invention aims to solve the technical problem that the duration of the antistatic effect of the PC light diffusion plate is short in the prior art; a thin-wall antistatic flame-retardant light diffusion PC material and a preparation method thereof are provided to obtain a PC light diffusion plate with a permanent antistatic effect.
In order to achieve the purpose, the invention adopts the following technical scheme:
a thin-wall antistatic flame-retardant light diffusion PC material comprises the following components in percentage by weight:
wherein the antistatic agent is n-butylphosphine bistrifluoromethanesulfonylimide ionic liquid type antistatic agent.
Further, the PC resin adopts the conditions that the melt flow rate is 8-12g/10min and the impact is 40-50KJ/m under the test condition of 300 ℃ and 1.2kg 2 The PC resin of (1).
Further, the flame retardant is any one or a mixture of more than two of a brominated flame retardant, a phosphonate flame retardant or a sulfonate flame retardant according to any proportion.
Further, the flame retardant is a perfluoroalkyl sulfonate flame retardant.
Further, the light diffusing agent is an organic silicon modified acrylate polymer.
Further, the antioxidant is an antioxidant 1076 and an antioxidant 168, and the mass ratio of the antioxidant to the antioxidant is 1:1, in a mixture of the components.
Furthermore, the lubricant is a mixture composed of any one or more than two of EBS, PETS and silicone master batches according to any proportion.
A preparation method of a thin-wall antistatic flame-retardant light diffusion PC material comprises the following steps:
step 1, weighing PC resin, an antistatic agent, a flame retardant, a light diffusing agent, an antioxidant and a lubricant according to weight percentage; adding the weighed materials into a high-speed stirrer, and uniformly mixing to obtain a mixed material;
and 2, adding the mixed material obtained in the step 1 into a double-screw extruder for extrusion.
Further, the screw rotating speed of the double-screw extruder in the step 2 is 400r/min-600r/min.
Further, the temperature of each zone of the twin-screw extruder in the step 2 is as follows: the first zone is 100 ℃, the second zone is 200 ℃, the third zone is 230 ℃, the fourth zone is 240 ℃, the fifth zone is 240 ℃, the sixth zone is 230 ℃, the seventh zone is 230 ℃, the eighth zone is 230 ℃, the ninth zone is 230 ℃, the tenth zone is 240 ℃ and the head temperature is 240 ℃.
The beneficial effects of the invention are:
1. the antistatic agent adopted by the invention is n-butylphosphine bistrifluoromethanesulfonylimide ionic liquid antistatic agent, which has a better combination effect with a PC substrate, wherein one end of the ionic antistatic agent is firmly buried in the PC substrate, and the other end of the ionic antistatic agent is close to the surface of the substrate, so that the substrate has a good permanent antistatic effect. Meanwhile, the ionic liquid antistatic agent is different from the characteristic that the surfactant in the prior art shows conductivity by absorbing moisture in air, shows an antistatic effect by ionic conductivity, can not be influenced by a use environment, and can also show excellent antistatic property even in a dry environment; the ionic liquid antistatic agent has higher decomposition temperature, can meet the requirements of blending extrusion and injection molding, and enables the preparation process link of the PC material to be simpler and the cost to be lower.
2. The flame retardant disclosed by the invention adopts the perfluoroalkyl sulfonate flame retardant, and not only can the transparency of the PC material be kept above 80% and the haze be kept about 30%, but also the flame retardant can meet the requirement of 1.6mmV0 in a UL94 flame retardant test. Namely, the finally obtained PC light diffusion plate has excellent light diffusion performance and flame retardant performance.
Detailed Description
The embodiment of the invention provides a thin-wall antistatic flame-retardant light diffusion PC material and a preparation method thereof, so as to solve the technical problem that the duration of the antistatic effect of a PC light diffusion plate in the prior art is short.
The general idea adopted by the invention is as follows:
a thin-wall antistatic flame-retardant light diffusion PC material comprises the following components in percentage by weight: 95-98% of PC resin, 1-3% of antistatic agent, 0.1-0.3% of flame retardant, 0.1-0.3% of light diffusant, 0.1-0.5% of antioxidant and 0.1-0.5% of lubricant. Wherein the antistatic agent is n-butylphosphine bistrifluoromethanesulfonylimide ionic liquid type antistatic agent.
Compared with antistatic agents such as conductive carbon black, carbon fibers and carbon nanotubes which are conventionally used in plastic materials in the prior art, the liquid ionic antistatic agent can improve the antistatic effect of the material and ensure the light diffusion performance of the PC material. The n-butylphosphine bistrifluoromethanesulfonylimide ionic liquid antistatic agent adopted in the embodiment of the invention has the advantages that one end is firmly buried in a PC base material, and the other end is close to the surface of the base material when PC resin is mixed, so that the base material has a good permanent antistatic effect. Meanwhile, the ionic liquid antistatic agent is different from the characteristic that the surfactant in the prior art shows conductivity by absorbing moisture in air, shows an antistatic effect by ionic conductivity, can not be influenced by a use environment, and can also show excellent antistatic property even in a dry environment; and the ionic liquid antistatic agent has higher decomposition temperature, and can meet the requirements of blending extrusion and injection molding, so that the preparation process link of the PC material is simpler and the cost is lower.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the invention. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs.
The use of "first," "second," and similar terms in the description and claims of the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Similarly, the singular forms "a," "an," or "the" and similar referents do not denote a limitation of quantity, but rather denote the presence of at least one, unless the context clearly dictates otherwise. The terms "comprises," "comprising," or the like, mean that the elements or items listed before "comprises" or "comprising" encompass the features, integers, steps, operations, elements, and/or components listed after "comprising" or "comprising," and do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
Example 1
A thin-wall antistatic flame-retardant light diffusion PC material comprises the following components in percentage by weight: 97.8% of PC resin, 1% of antistatic agent, 0.1% of flame retardant, 0.3% of light diffusant, 0.4% of antioxidant and 0.4% of lubricant. The PC resin is S-2000F PC resin prepared by adopting a phosgene process. The antistatic agent is n-butylphosphine bistrifluoromethanesulfonylimide ionic liquid type antistatic agent. The flame retardant is perfluoroalkyl sulfonate flame retardant FR-2025. The light diffusant is organic silicon modified acrylate light diffusant 30-424. The antioxidant is an antioxidant 1076 and an antioxidant 168, and the mass ratio of the antioxidant to the antioxidant is 1:1 in a mixture. The lubricant is PETS.
The preparation method of the thin-wall antistatic flame-retardant light diffusion PC material comprises the following steps:
step 1, weighing PC resin, an antistatic agent, a flame retardant, a light diffusing agent, an antioxidant and a lubricant according to weight percentage; adding the weighed materials into a high-speed stirrer, and uniformly mixing to obtain a mixed material;
and 2, adding the mixed material obtained in the step 1 into a double-screw extruder, and extruding to obtain the thin-wall antistatic flame-retardant light diffusion PC material.
Wherein the screw rotating speed of the double-screw extruder is 600r/min. The temperature of each zone of the double-screw extruder is as follows: the first zone is 100 ℃, the second zone is 200 ℃, the third zone is 230 ℃, the fourth zone is 240 ℃, the fifth zone is 240 ℃, the sixth zone is 230 ℃, the seventh zone is 230 ℃, the eighth zone is 230 ℃, the ninth zone is 230 ℃, the tenth zone is 240 ℃ and the head temperature is 240 ℃.
Example 2
A thin-wall antistatic flame-retardant light diffusion PC material comprises the following components in percentage by weight: 96.8% of PC resin, 2% of antistatic agent, 0.2% of flame retardant, 0.2% of light diffusant, 0.4% of antioxidant and 0.4% of lubricant. The PC resin is made by adopting a phosgene process and is S-2000F. The antistatic agent is n-butylphosphine bistrifluoromethanesulfonylimide ionic liquid type antistatic agent. The flame retardant is perfluoroalkyl sulfonate flame retardant FR-2025. The light diffusant is organic silicon modified acrylate light diffusant 30-424. The antioxidant is an antioxidant 1076 and an antioxidant 168, and the mass ratio of the antioxidant to the antioxidant is 1:1, in a mixture of the components. The lubricant is EBS.
The preparation method of the thin-wall antistatic flame-retardant light diffusion PC material comprises the following steps:
step 1, weighing PC resin, an antistatic agent, a flame retardant, a light diffusing agent, an antioxidant and a lubricant according to weight percentage; adding the weighed materials into a high-speed stirrer, and uniformly mixing to obtain a mixed material;
and 2, adding the mixed material obtained in the step 1 into a double-screw extruder, and extruding to obtain the thin-wall antistatic flame-retardant light diffusion PC material.
Wherein the screw rotating speed of the double-screw extruder is 500r/min. The temperature of each zone of the double-screw extruder is as follows: the first zone is 100 ℃, the second zone is 200 ℃, the third zone is 230 ℃, the fourth zone is 240 ℃, the fifth zone is 240 ℃, the sixth zone is 230 ℃, the seventh zone is 230 ℃, the eighth zone is 230 ℃, the ninth zone is 230 ℃, the tenth zone is 240 ℃ and the head temperature is 240 ℃.
Example 3
A thin-wall antistatic flame-retardant light diffusion PC material comprises the following components in percentage by weight: 95.8% of PC resin, 3% of antistatic agent, 0.3% of flame retardant, 0.1% of light diffusant, 0.4% of antioxidant and 0.4% of lubricant. The PC resin is S-2000F PC resin prepared by adopting a phosgene process. The antistatic agent is n-butylphosphine bistrifluoromethanesulfonylimide ionic liquid type antistatic agent. The flame retardant is perfluoroalkyl sulfonate flame retardant FR-2025. The light diffusant is organic silicon modified acrylate light diffusant 30-424. The antioxidant is an antioxidant 1076 and an antioxidant 168, and the mass ratio of the antioxidant to the antioxidant is 1:1, in a mixture of the components. The lubricant is silicone master batch.
The preparation method of the thin-wall antistatic flame-retardant light diffusion PC material comprises the following steps:
step 1, weighing PC resin, an antistatic agent, a flame retardant, a light diffusing agent, an antioxidant and a lubricant according to weight percentage; adding the weighed materials into a high-speed stirrer, and uniformly mixing to obtain a mixed material;
and 2, adding the mixed material obtained in the step 1 into a double-screw extruder, and extruding to obtain the thin-wall antistatic flame-retardant light diffusion PC material.
Wherein the screw rotating speed of the double-screw extruder is 500r/min. The temperature of each zone of the double-screw extruder is as follows: the first zone is 100 ℃, the second zone is 200 ℃, the third zone is 230 ℃, the fourth zone is 240 ℃, the fifth zone is 240 ℃, the sixth zone is 230 ℃, the seventh zone is 230 ℃, the eighth zone is 230 ℃, the ninth zone is 230 ℃, the tenth zone is 240 ℃ and the head temperature is 240 ℃.
Comparative example 1
A light diffusion PC material comprises the following components in percentage by weight: 98.8% of PC resin, 0.1% of flame retardant, 0.3% of light diffusant, 0.4% of antioxidant and 0.4% of lubricant. The PC resin is made by adopting a phosgene process and is S-2000F. The flame retardant is perfluoroalkyl sulfonate flame retardant FR-2025. The light diffusant is organic silicon modified acrylate light diffusant 30-424. The antioxidant is an antioxidant 1076 and an antioxidant 168, and the mass ratio of the antioxidant to the antioxidant is 1:1, in a mixture of the components. The lubricant is PETS.
The preparation method of the thin-wall antistatic flame-retardant light diffusion PC material comprises the following steps:
step 1, weighing PC resin, a flame retardant, a light diffusant, an antioxidant and a lubricant according to weight percentage; adding the weighed materials into a high-speed stirrer, and uniformly mixing to obtain a mixed material;
and 2, adding the mixed material obtained in the step 1 into a double-screw extruder, and extruding to obtain the thin-wall antistatic flame-retardant light diffusion PC material.
Wherein the screw rotating speed of the double-screw extruder is 600r/min. The temperature of each zone of the double-screw extruder is as follows: the first zone is 100 ℃, the second zone is 200 ℃, the third zone is 230 ℃, the fourth zone is 240 ℃, the fifth zone is 240 ℃, the sixth zone is 230 ℃, the seventh zone is 230 ℃, the eighth zone is 230 ℃, the ninth zone is 230 ℃, the tenth zone is 240 ℃ and the head temperature is 240 ℃.
Comparative example 1 is different from example 1 described above in that an antistatic agent is not added.
Comparative example 2
A thin-wall antistatic flame-retardant light diffusion PC material comprises the following components in percentage by weight: 96.1% of PC resin, 3% of antistatic agent, 0.1% of light diffusant, 0.4% of antioxidant and 0.4% of lubricant. The PC resin is S-2000F PC resin prepared by adopting a phosgene process. The antistatic agent is n-butylphosphine bistrifluoromethanesulfonylimide ionic liquid type antistatic agent. The light diffusant is organic silicon modified acrylate light diffusant 30-424. The antioxidant is an antioxidant 1076 and an antioxidant 168, and the mass ratio of the antioxidant to the antioxidant is 1:1, in a mixture of the components. The lubricant is silicone master batch.
The preparation method of the thin-wall antistatic flame-retardant light diffusion PC material comprises the following steps:
step 1, weighing PC resin, an antistatic agent, a flame retardant, a light diffusing agent, an antioxidant and a lubricant according to weight percentage; adding the weighed materials into a high-speed stirrer, and uniformly mixing to obtain a mixed material;
and 2, adding the mixed material obtained in the step 1 into a double-screw extruder, and extruding to obtain the thin-wall antistatic flame-retardant light diffusion PC material.
Wherein the screw rotating speed of the double-screw extruder is 500r/min. The temperature of each zone of the double-screw extruder is as follows: the first zone is 100 ℃, the second zone is 200 ℃, the third zone is 230 ℃, the fourth zone is 240 ℃, the fifth zone is 240 ℃, the sixth zone is 230 ℃, the seventh zone is 230 ℃, the eighth zone is 230 ℃, the ninth zone is 230 ℃, the tenth zone is 240 ℃ and the head temperature is 240 ℃.
Comparative example 2 differs from example 3 above in that no flame retardant is added.
Comparative example 3
The antistatic flame-retardant PC light diffusion plate is commercially available.
Performance test
In order to better verify the properties of the light diffusing PC materials obtained in examples 1-3, the light diffusing PC materials obtained in examples 1-3 and comparative examples 1-3 were tested for density, melt flow rate, tensile strength, impact strength, flexural modulus, UL94 (1.6 mm), light transmittance, haze, and resistivity. Wherein the density is determined by the drainage method using the test standard ISO 1183; the test standard of the melt flow rate is ISO1183, and the test conditions are 260 ℃ and 5kg; the tensile strength test standard is ISO527, the sample strip is a type 1 sample strip, and the tensile speed in the test is 10mm/min; the impact strength test standard is ISO180, and the Izod notch impact strength is obtained; the test standard of the bending strength and the bending modulus is ISO178, and the bending speed during the test is 2mm/min; the light transmittance and haze test standard is ISO13468-2, and the thickness of a sample plate during the test is 2mm; the resistivity test standard is ASTM D-257. The test results obtained are shown in the following table:
TABLE 1 results of examining the properties of the light-diffusing PC materials obtained in each example and comparative example
As can be seen from the test results of the examples 1 to 3 in the table above, the light diffusion PC material obtained in the examples of the present invention has not only excellent antistatic effect and flame retardant effect, but also light transmittance of more than 80% and haze of about 30%, i.e., it also has good light transmittance effect.
Comparing the test results of the example 1 and the comparative example 1, it can be seen that the antistatic effect of the light diffusion PC material can be effectively improved by adding the antistatic agent of the present invention, and other properties of the light diffusion PC material, such as light transmittance, haze, flame retardancy and other mechanical properties, are not affected by adding the antistatic agent of the present invention.
Comparing the test results of the embodiment 3 and the comparative example 2 of the present invention, it can be known that the flame retardant of the present invention can effectively improve the flame retardant effect of the photodiffusion PC material, and the addition of the flame retardant of the present invention does not affect other properties of the photodiffusion PC material, such as light transmittance, haze, antistatic property and other mechanical properties.
As can be seen from the results of the tests of comparative examples 1 to 3 and comparative example 3, the antistatic properties of examples 1 to 3 and comparative example 3 were substantially the same at the beginning. The resistivity of examples 1-3 did not change after one year, whereas the antistatic performance of comparative example 3 was significantly improved. It is demonstrated that the light diffusing PC materials obtained in examples 1-3 of the present invention have good persistence of antistatic effect.
Finally, it should be noted that: these embodiments are merely illustrative of the present invention and do not limit the scope of the present invention. In addition, other variations and modifications will be apparent to persons skilled in the art based on the foregoing description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications are intended to be within the scope of the present invention.
Claims (10)
1. The thin-wall antistatic flame-retardant light diffusion PC material is characterized by comprising the following components in percentage by weight:
wherein the antistatic agent is n-butylphosphine bistrifluoromethanesulfonylimide ionic liquid type antistatic agent.
2. The thin-wall antistatic flame-retardant light-diffusing PC material according to claim 1, characterized in that: the PC resin adopts the conditions that the melt flow rate is 8-12g/10min and the impact is 40-50KJ/m under the test condition of 300 ℃ and 1.2kg 2 The PC resin of (1).
3. The thin-wall antistatic flame-retardant light-diffusing PC material according to claim 1, characterized in that: the flame retardant is any one or a mixture of more than two of a brominated flame retardant, a phosphonate flame retardant or a sulfonate flame retardant according to any proportion.
4. The thin-wall antistatic flame-retardant light-diffusing PC material according to claim 1, characterized in that: the flame retardant is perfluoroalkyl sulfonate flame retardant.
5. The thin-wall antistatic flame-retardant light-diffusing PC material according to claim 1, characterized in that: the light diffusant is an organic silicon modified acrylate polymer.
6. The thin-wall antistatic flame-retardant light-diffusing PC material according to claim 1, characterized in that: the antioxidant is an antioxidant 1076 and an antioxidant 168, and the mass ratio of the antioxidant to the antioxidant is 1:1, in a mixture of the components.
7. The thin-wall antistatic flame-retardant light-diffusing PC material according to claim 1, characterized in that: the lubricant is a mixture composed of any one or more than two of EBS, PETS and silicone master batches according to any proportion.
8. A method for preparing the thin-wall antistatic flame-retardant light diffusion PC material as claimed in any one of claims 1 to 7, characterized by comprising the following steps:
step 1, weighing PC resin, an antistatic agent, a flame retardant, a light diffusing agent, an antioxidant and a lubricant according to parts by weight; adding the weighed materials into a high-speed stirrer, and uniformly mixing to obtain a mixed material;
and 2, adding the mixed material obtained in the step 1 into a double-screw extruder for extrusion.
9. The preparation method of the thin-wall antistatic flame-retardant light-diffusion PC material according to claim 8, characterized in that: the screw rotating speed of the double-screw heavy extruder in the step 2 is 400r/min-600r/min.
10. The preparation method of the thin-wall antistatic flame-retardant light-diffusion PC material according to claim 8, characterized in that: the temperature of each area of the double-screw extruder in the step 2 is as follows: the first zone is 100 ℃, the second zone is 200 ℃, the third zone is 230 ℃, the fourth zone is 240 ℃, the fifth zone is 240 ℃, the sixth zone is 230 ℃, the seventh zone is 230 ℃, the eighth zone is 230 ℃, the ninth zone is 230 ℃, the tenth zone is 240 ℃ and the head temperature is 240 ℃.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310021667.9A CN115960450A (en) | 2023-01-07 | 2023-01-07 | Thin-wall antistatic flame-retardant light-diffusion PC material and preparation method thereof |
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| CN202310021667.9A CN115960450A (en) | 2023-01-07 | 2023-01-07 | Thin-wall antistatic flame-retardant light-diffusion PC material and preparation method thereof |
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Citations (4)
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|---|---|---|---|---|
| WO2007119631A1 (en) * | 2006-03-31 | 2007-10-25 | Koei Chemical Company, Limited | Antistatic agent, and antistatic resin composition comprising the same |
| CN101454389A (en) * | 2006-03-23 | 2009-06-10 | 沙伯基础创新塑料知识产权有限公司 | Flame retardant polycarbonate compositions having good transparency and low haze, method of manufacture, and articles prepared therefrom |
| CN102086300A (en) * | 2010-12-20 | 2011-06-08 | 深圳市科聚新材料有限公司 | High flame resistance transparent light diffusion polycarbonate and preparation method thereof |
| CN102372914A (en) * | 2010-08-13 | 2012-03-14 | 上海锦湖日丽塑料有限公司 | Polycarbonate composition having light diffusion characteristics and preparation method thereof |
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2023
- 2023-01-07 CN CN202310021667.9A patent/CN115960450A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101454389A (en) * | 2006-03-23 | 2009-06-10 | 沙伯基础创新塑料知识产权有限公司 | Flame retardant polycarbonate compositions having good transparency and low haze, method of manufacture, and articles prepared therefrom |
| WO2007119631A1 (en) * | 2006-03-31 | 2007-10-25 | Koei Chemical Company, Limited | Antistatic agent, and antistatic resin composition comprising the same |
| CN102372914A (en) * | 2010-08-13 | 2012-03-14 | 上海锦湖日丽塑料有限公司 | Polycarbonate composition having light diffusion characteristics and preparation method thereof |
| CN102086300A (en) * | 2010-12-20 | 2011-06-08 | 深圳市科聚新材料有限公司 | High flame resistance transparent light diffusion polycarbonate and preparation method thereof |
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