CN116285295A - Novel high-light-transmittance wear-resistant PC composite material - Google Patents
Novel high-light-transmittance wear-resistant PC composite material Download PDFInfo
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- 238000002834 transmittance Methods 0.000 title claims abstract description 37
- 239000002131 composite material Substances 0.000 title claims abstract description 30
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229920001577 copolymer Polymers 0.000 claims abstract description 21
- 239000011258 core-shell material Substances 0.000 claims abstract description 21
- 229920001230 polyarylate Polymers 0.000 claims abstract description 19
- 239000004704 Ultra-low-molecular-weight polyethylene Substances 0.000 claims abstract description 18
- 229920001862 ultra low molecular weight polyethylene Polymers 0.000 claims abstract description 18
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 claims abstract description 16
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims abstract description 16
- 239000012745 toughening agent Substances 0.000 claims abstract description 14
- 239000000314 lubricant Substances 0.000 claims abstract description 12
- 239000002270 dispersing agent Substances 0.000 claims abstract description 10
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 9
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 9
- 239000002250 absorbent Substances 0.000 claims abstract description 7
- 230000002745 absorbent Effects 0.000 claims abstract description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 30
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 15
- 238000002156 mixing Methods 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 15
- 239000003795 chemical substances by application Substances 0.000 claims description 14
- 238000005299 abrasion Methods 0.000 claims description 13
- -1 acrylic ester Chemical class 0.000 claims description 13
- 239000000243 solution Substances 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 239000003999 initiator Substances 0.000 claims description 7
- 239000000178 monomer Substances 0.000 claims description 7
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 6
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 6
- 238000005469 granulation Methods 0.000 claims description 6
- 230000003179 granulation Effects 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 229920000098 polyolefin Polymers 0.000 claims description 6
- 238000004321 preservation Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 claims description 4
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 claims description 4
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000003995 emulsifying agent Substances 0.000 claims description 4
- 238000006116 polymerization reaction Methods 0.000 claims description 4
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 3
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 3
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 3
- 239000003054 catalyst Substances 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 239000011259 mixed solution Substances 0.000 claims description 3
- 230000001376 precipitating effect Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- DXPPIEDUBFUSEZ-UHFFFAOYSA-N 6-methylheptyl prop-2-enoate Chemical compound CC(C)CCCCCOC(=O)C=C DXPPIEDUBFUSEZ-UHFFFAOYSA-N 0.000 claims description 2
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 claims description 2
- YIVJZNGAASQVEM-UHFFFAOYSA-N Lauroyl peroxide Chemical compound CCCCCCCCCCCC(=O)OOC(=O)CCCCCCCCCCC YIVJZNGAASQVEM-UHFFFAOYSA-N 0.000 claims description 2
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 2
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 2
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims description 2
- XJOBOFWTZOKMOH-UHFFFAOYSA-N decanoyl decaneperoxoate Chemical compound CCCCCCCCCC(=O)OOC(=O)CCCCCCCCC XJOBOFWTZOKMOH-UHFFFAOYSA-N 0.000 claims description 2
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 claims description 2
- 239000006097 ultraviolet radiation absorber Substances 0.000 claims description 2
- 239000004417 polycarbonate Substances 0.000 description 31
- 230000000052 comparative effect Effects 0.000 description 16
- 238000002360 preparation method Methods 0.000 description 7
- 229920001296 polysiloxane Polymers 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 3
- 239000012994 photoredox catalyst Substances 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- LGJCFVYMIJLQJO-UHFFFAOYSA-N 1-dodecylperoxydodecane Chemical compound CCCCCCCCCCCCOOCCCCCCCCCCCC LGJCFVYMIJLQJO-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/18—Spheres
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/53—Core-shell polymer
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Graft Or Block Polymers (AREA)
Abstract
The invention provides a novel high-light-transmittance wear-resistant PC composite material, which comprises the following components in parts by weight: 70 parts of PC, 2-6 parts of polyarylate core-shell copolymer, 0.5-2 parts of organosilicon light dispersing agent, 0.5-1 part of antioxidant, 1-3 parts of lubricant, 2-5 parts of novel toughening agent, 30-50 parts of maleic anhydride grafted ultra-high molecular weight polyethylene, 40-55 parts of maleic anhydride grafted ultra-low molecular weight polyethylene and 0.5-3 parts of ultraviolet absorbent.
Description
Technical Field
The invention relates to the technical field of PC composite materials, in particular to a novel high-light-transmittance wear-resistant PC composite material.
Background
At present, energy-saving and environment-friendly lamps are becoming popular, the development of lamp shade materials of LED lamp tubes is also attracting more attention, and common lamp shade materials are PC (polycarbonate), PMMA (acrylic) and the like. PC is a thermoplastic engineering plastic with excellent comprehensive performance, has excellent weather resistance, high impact resistance, excellent electrical insulation, high light transmittance and less light energy loss, and is widely used in the fields of electric illumination and the like. Therefore, the LED lamp tube shade material is biased to select the light diffusion PC resin, which is a future development trend.
The invention patent No. CN110684330 discloses a PC material with high light transmittance and high haze, which has higher light transmittance but poor wear resistance, so that the PC material cannot have the performance of both high light transmittance and high wear resistance.
Disclosure of Invention
The invention aims to provide a novel high-light-transmittance wear-resistant PC composite material so as to solve the problems in the background art. In order to achieve the above purpose, the present invention provides the following technical solutions:
novel high-light-transmittance wear-resistant PC composite material comprises the following components in parts by weight: 70 parts of PC, 2-6 parts of polyarylate core-shell copolymer, 0.5-2 parts of organosilicon light dispersing agent, 0.5-1 part of antioxidant, 1-3 parts of lubricant, 2-5 parts of novel toughening agent, 30-50 parts of maleic anhydride grafted ultra-high molecular weight polyethylene, 40-55 parts of maleic anhydride grafted ultra-low molecular weight polyethylene and 0.5-3 parts of ultraviolet absorber.
Preferably, in the maleic anhydride grafted ultra-high molecular weight polyethylene and the maleic anhydride grafted ultra-low molecular weight polyethylene, the grafting rate of the maleic anhydride is 3-5%.
Preferably, the lubricant is a low-polymeric PBT having a degree of polymerization of 500 to 800 and a viscosity of 0.7 to 0.9.
Preferably, the polyarylate core-shell copolymer is prepared by the following steps:
(1) Adding deionized water, acrylic ester monomers, bisphenol A, an emulsifying agent and an initiator into a reaction container provided with a stirring and dripping device, introducing N2, starting heating and stirring, and dripping the rest initiator solution within 0.5-2 h when the temperature reaches 50-80 ℃; then heating to 85-110 ℃, and reacting for 1-3 h with heat preservation;
(2) Adding a catalyst, placing the organic solution of the diformyl chloride into a dripping container, then dripping the rest acrylic ester monomer and the organic solution of the diformyl chloride in sequence within 0.25-3 h, carrying out heat preservation reaction for 1-4 h, cooling to 40-70 ℃ after the reaction is finished, regulating the pH value of the system, and then cooling, demulsification and drying to obtain the polyarylate core-shell copolymer.
Preferably, the acrylic monomer in the step (1) is one or more of methyl methacrylate, methyl acrylate, ethyl acrylate, butyl acrylate and isooctyl acrylate.
Preferably, the emulsifier in the step (1) is one or more of ammonia water, triethylamine and triethanolamine.
Preferably, the initiator in the step (1) is one or more of dilauroyl peroxide, didecanoyl peroxide and ammonium persulfate.
Preferably, the novel toughening agent is prepared by the following steps:
(1) Stirring and mixing nano calcium carbonate and water according to the volume ratio of 1:3, adding maleic anhydride with the mass ratio of 2% -5% of nano calcium carbonate into the mixed solution, stirring and reacting for 1-2h, and then precipitating, filtering and drying to obtain modified nano calcium carbonate;
(2) Blending the modified nano calcium carbonate obtained in the step (1) and polyolefin according to the mass ratio of 1:4-2:3, and carrying out melt blending on the blend by a single screw extruder to obtain a mixture of the modified nano calcium carbonate and the polyolefin;
(3) Placing the mixture obtained in the step (2) and polydiene rubber in a high-speed stirrer according to the mass ratio of 1:1-3:1, and stirring for 2 hours to obtain the novel toughening agent.
A preparation method of a novel high-light-transmittance wear-resistant PC composite material comprises the following steps:
(1) The maleic anhydride grafted ultra-high molecular weight polyethylene, the maleic anhydride grafted ultra-low molecular weight polyethylene and dicumyl peroxide are subjected to melt mixing extrusion and cooling granulation at the temperature of 150-200 ℃ through a double-screw extruder to obtain the wear-resistant agent;
(2) The wear-resistant agent, PC, polyarylate core-shell copolymer, organosilicon light dispersing agent, antioxidant, lubricant, novel toughening agent and ultraviolet absorbent are melted, mixed, extruded, cooled and granulated by a double-screw extruder at the temperature of 260-290 ℃ to obtain the novel high-light-transmittance wear-resistant PC composite material.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the PC composite material, the high light transmittance of the PC composite material is realized through the synergistic effect of the prepared polyarylester core-shell copolymer and the organosilicon light dispersing agent, and the organosilicon is micron-sized spherical micro powder and has strong adsorptivity, so that the polyarylester core-shell copolymer wraps the organosilicon spherical micro powder on the surface, the high light transmittance performance is enhanced, the organosilicon mobility is strong, and the occurrence of inhomogeneity in the preparation process is prevented.
2. The PC composite material has good wear resistance due to high molecular weight, but has very poor fluidity, and is difficult to be in a viscous state at high temperature, so that the PC composite material is difficult to process by conventional equipment; and the ultra-low molecular weight polyethylene has good fluidity due to low molecular weight. The ultra-high molecular weight polyethylene and the ultra-low molecular weight polyethylene and the polyethylene of the same genus have very good compatibility, after the ultra-high molecular weight polyethylene and the ultra-low molecular weight polyethylene are mixed, the ultra-high molecular weight polyethylene provides wear resistance, the ultra-low molecular weight polyethylene improves fluidity, and the wear-resistant agent has good wear resistance and fluidity at the same time by controlling the relative proportion of the ultra-high molecular weight polyethylene and the ultra-low molecular weight polyethylene, so that high light transmittance is promoted.
Detailed Description
The following steps are merely illustrative of the technical solution of the present disclosure, and are not limiting thereof; although the present disclosure has been described in detail with reference to the foregoing steps, one of ordinary skill in the art will appreciate that: the technical scheme recorded in each step can be modified or part or all of the technical characteristics can be replaced equivalently; such modifications and substitutions do not depart from the essence of the corresponding technical solutions from the scope of the technical solutions of the steps of the present disclosure.
Examples
Novel high-light-transmittance wear-resistant PC composite material comprises the following components in parts by weight: 70 parts of PC, 2 parts of polyarylate core-shell copolymer, 0.5 part of organosilicon light dispersing agent, 0.5 part of antioxidant, 1 part of lubricant, 2 parts of novel flexibilizer, 30 parts of maleic anhydride grafted ultra-high molecular weight polyethylene, 40 parts of maleic anhydride grafted ultra-low molecular weight polyethylene and 0.5 part of ultraviolet absorbent.
Preferably, in the maleic anhydride grafted ultra-high molecular weight polyethylene and the maleic anhydride grafted ultra-low molecular weight polyethylene, the grafting rate of the maleic anhydride is 3%.
Preferably, the lubricant is a low polymeric PBT having a degree of polymerization of 730 and a viscosity of 0.7.
Preferably, the polyarylate core-shell copolymer is prepared by the following steps:
(1) Adding deionized water, methyl methacrylate, bisphenol A, ammonia water and dilauryl peroxide into a reaction vessel provided with a stirring and dripping device, introducing N2, starting heating and stirring, and dripping the rest initiator solution within 0.5-2 h when the temperature reaches 50-80 ℃; then heating to 85-110 ℃, and reacting for 1-3 h with heat preservation;
(2) Adding a catalyst, placing the organic solution of the diformyl chloride into a dripping container, then dripping the rest acrylic ester monomer and the organic solution of the diformyl chloride in sequence within 0.25-3 h, carrying out heat preservation reaction for 1-4 h, cooling to 40-70 ℃ after the reaction is finished, regulating the pH value of the system, and then cooling, demulsification and drying to obtain the polyarylate core-shell copolymer.
Preferably, the novel toughening agent is prepared by the following steps:
(1) Stirring and mixing nano calcium carbonate and water according to the volume ratio of 1:3, adding maleic anhydride with the mass ratio of 2% -5% of nano calcium carbonate into the mixed solution, stirring and reacting for 1-2h, and then precipitating, filtering and drying to obtain modified nano calcium carbonate;
(2) Blending the modified nano calcium carbonate obtained in the step (1) and polyolefin according to the mass ratio of 2:3, and carrying out melt blending on the blend by a single screw extruder to obtain a mixture of the modified nano calcium carbonate and the polyolefin;
(3) And (3) placing the mixture obtained in the step (2) and polydiene rubber in a high-speed stirrer according to the mass ratio of 3:1, and stirring for 2 hours to obtain the novel toughening agent.
A preparation method of a novel high-light-transmittance wear-resistant PC composite material comprises the following steps:
(1) The method comprises the steps of (1) carrying out melt mixing extrusion and cooling granulation on maleic anhydride grafted ultra-high molecular weight polyethylene, maleic anhydride grafted ultra-low molecular weight polyethylene and dicumyl peroxide at 180 ℃ through a double-screw extruder to obtain an antiwear agent;
(2) And (3) the wear-resistant agent, PC, polyarylate core-shell copolymer, organosilicon light dispersing agent, antioxidant, lubricant, novel toughening agent and ultraviolet absorbent are subjected to melt mixing extrusion, cooling granulation at 270 ℃ through a double-screw extruder, so that the novel high-light-transmittance wear-resistant PC composite material is obtained.
Examples
Novel high-light-transmittance wear-resistant PC composite material comprises the following components in parts by weight: 70 parts of PC, 6 parts of polyarylate core-shell copolymer, 2 parts of organosilicon light dispersing agent, 1 part of antioxidant, 3 parts of lubricant, 5 parts of novel toughening agent, 50 parts of maleic anhydride grafted ultra-high molecular weight polyethylene, 55 parts of maleic anhydride grafted ultra-low molecular weight polyethylene and 3 parts of ultraviolet absorbent.
A preparation method of a novel high-light-transmittance wear-resistant PC composite material comprises the following steps:
(1) The method comprises the steps of (1) carrying out melt mixing extrusion and cooling granulation on maleic anhydride grafted ultra-high molecular weight polyethylene, maleic anhydride grafted ultra-low molecular weight polyethylene and dicumyl peroxide at 180 ℃ through a double-screw extruder to obtain an antiwear agent;
(2) And (3) the wear-resistant agent, PC, polyarylate core-shell copolymer, organosilicon light dispersing agent, antioxidant, lubricant, novel toughening agent and ultraviolet absorbent are subjected to melt mixing extrusion, cooling granulation at 270 ℃ through a double-screw extruder, so that the novel high-light-transmittance wear-resistant PC composite material is obtained.
Comparative example 1
This comparative example differs from example 1 in that no polyarylate core-shell copolymer was added.
Comparative example 2
This comparative example differs from example 1 in that no silicone light diffusing agent was added.
Comparative example 3
This comparative example differs from example 1 in that the polyarylate core-shell copolymer and the silicone light diffusing agent were not added at the same time.
Comparative example 4
This comparative example differs from example 1 in that no antiwear agent was added at the same time.
The above-described examples 1 and comparative examples 1 to 4 were subjected to light transmittance and abrasion resistance tests, and table 1 shows test data of each example and comparative example:
| sample of | Transmittance/% | Tensile Strength (MPa) | Notched impact Strength (Kj/m) 2 ） |
| Example 1 | 92.7 | 54.1 | 81.9 |
| Comparative example 1 | 80.3 | 53.7 | 82.1 |
| Comparative example 2 | 83.4 | 54.3 | 81.5 |
| Comparative example 3 | 60.4 | 53.8 | 81.6 |
| Comparative example 4 | 84.1 | 42.2 | 70.1 |
As can be seen from the table, in comparative examples 1 to 3, the light transmittance was smaller than that of example 1, and the abrasion resistance was not much different, because the synergistic effect of the polyarylate core-shell copolymer and the silicone light diffusion agent in the material was achieved to achieve high light transmittance of the PC composite, whereas in comparative example 4, although the polyarylate core-shell copolymer and the silicone light diffusion agent were provided, the abrasion resistance was remarkably reduced, and the light transmittance was still not as good as in example 1, because the ultra-low molecular weight polyethylene added in the preparation of the abrasion resistance was low in molecular weight, and the fluidity was good, which helped to form stable homogenization in the preparation of the material, prevented from forming excessive thickness deviation in the preparation process, and affected the light transmittance, and therefore, the abrasion resistance had not only the effect of improving the abrasion resistance but also the effect of promoting the light transmittance in the PC composite.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (9)
1. The utility model provides a novel wear-resisting PC combined material of high luminousness which characterized in that: the weight portions are as follows: 70 parts of PC, 2-6 parts of polyarylate core-shell copolymer, 0.5-2 parts of organosilicon light dispersing agent, 0.5-1 part of antioxidant, 1-3 parts of lubricant, 2-5 parts of novel toughening agent, 30-50 parts of maleic anhydride grafted ultra-high molecular weight polyethylene, 40-55 parts of maleic anhydride grafted ultra-low molecular weight polyethylene and 0.5-3 parts of ultraviolet absorber.
2. The novel high-transmittance abrasion-resistant PC composite material according to claim 1, wherein: in the maleic anhydride grafted ultra-high molecular weight polyethylene and the maleic anhydride grafted ultra-low molecular weight polyethylene, the grafting rate of the maleic anhydride is 3-5%.
3. The novel high-transmittance abrasion-resistant PC composite material according to claim 1, wherein: the lubricant is low-polymerization PBT, the polymerization degree is 500-800, and the viscosity is 0.7-0.9.
4. The novel high-transmittance abrasion-resistant PC composite material according to claim 1, wherein: the polyarylate core-shell copolymer is prepared by the following steps:
(1) Adding deionized water, acrylic ester monomers, bisphenol A, an emulsifying agent and an initiator into a reaction container provided with a stirring and dripping device, introducing N2, starting heating and stirring, and dripping the rest initiator solution within 0.5-2 h when the temperature reaches 50-80 ℃; then heating to 85-110 ℃, and reacting for 1-3 h with heat preservation;
(2) Adding a catalyst, placing the organic solution of the diformyl chloride into a dripping container, then dripping the rest acrylic ester monomer and the organic solution of the diformyl chloride in sequence within 0.25-3 h, carrying out heat preservation reaction for 1-4 h, cooling to 40-70 ℃ after the reaction is finished, regulating the pH value of the system, and then cooling, demulsification and drying to obtain the polyarylate core-shell copolymer.
5. The novel high-transmittance abrasion-resistant PC composite material according to claim 4, wherein: the acrylic ester monomer in the step (1) is one or more of methyl methacrylate, methyl acrylate, ethyl acrylate, butyl acrylate and isooctyl acrylate.
6. The novel high-transmittance abrasion-resistant PC composite material according to claim 4, wherein: the emulsifier in the step (1) is one or more of ammonia water, triethylamine and triethanolamine.
7. The novel high-transmittance abrasion-resistant PC composite material according to claim 4, wherein: the initiator in the step (1) is one or more of dilauroyl peroxide, didecanoyl peroxide and ammonium persulfate.
8. The novel high-transmittance abrasion-resistant PC composite material according to claim 1, wherein: the novel toughening agent is prepared by the following steps:
(1) Stirring and mixing nano calcium carbonate and water according to the volume ratio of 1:3, adding maleic anhydride with the mass ratio of 2% -5% of nano calcium carbonate into the mixed solution, stirring and reacting for 1-2h, and then precipitating, filtering and drying to obtain modified nano calcium carbonate;
(2) Blending the modified nano calcium carbonate obtained in the step (1) and polyolefin according to the mass ratio of 1:4-2:3, and carrying out melt blending on the blend by a single screw extruder to obtain a mixture of the modified nano calcium carbonate and the polyolefin;
(3) Placing the mixture obtained in the step (2) and polydiene rubber in a high-speed stirrer according to the mass ratio of 1:1-3:1, and stirring for 2 hours to obtain the novel toughening agent.
9. The method for preparing the novel high-transmittance wear-resistant PC composite material according to any one of claims 1 to 8, which is characterized in that: the method comprises the following steps:
(1) The maleic anhydride grafted ultra-high molecular weight polyethylene, the maleic anhydride grafted ultra-low molecular weight polyethylene and dicumyl peroxide are subjected to melt mixing extrusion and cooling granulation at the temperature of 150-200 ℃ through a double-screw extruder to obtain the wear-resistant agent;
(2) The wear-resistant agent, PC, polyarylate core-shell copolymer, organosilicon light dispersing agent, antioxidant, lubricant, novel toughening agent and ultraviolet absorbent are melted, mixed, extruded, cooled and granulated by a double-screw extruder at the temperature of 260-290 ℃ to obtain the novel high-light-transmittance wear-resistant PC composite material.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105623233A (en) * | 2016-02-26 | 2016-06-01 | 浙江森川家具有限公司 | Wear-resistant and scraping-resistant injection-molding-grade PC/ABS alloy material and preparing method thereof |
| CN112778735A (en) * | 2020-12-30 | 2021-05-11 | 金发科技股份有限公司 | Novel PC (polycarbonate) wear-resisting agent as well as preparation method and application thereof |
| CN113999513A (en) * | 2021-11-24 | 2022-02-01 | 青岛国恩科技股份有限公司 | PC/PMMA alloy material for LED lampshade and preparation method thereof |
| CN114058169A (en) * | 2020-08-06 | 2022-02-18 | 中石化南京化工研究院有限公司 | Novel light diffusant and preparation method and application thereof |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105623233A (en) * | 2016-02-26 | 2016-06-01 | 浙江森川家具有限公司 | Wear-resistant and scraping-resistant injection-molding-grade PC/ABS alloy material and preparing method thereof |
| CN114058169A (en) * | 2020-08-06 | 2022-02-18 | 中石化南京化工研究院有限公司 | Novel light diffusant and preparation method and application thereof |
| CN112778735A (en) * | 2020-12-30 | 2021-05-11 | 金发科技股份有限公司 | Novel PC (polycarbonate) wear-resisting agent as well as preparation method and application thereof |
| CN113999513A (en) * | 2021-11-24 | 2022-02-01 | 青岛国恩科技股份有限公司 | PC/PMMA alloy material for LED lampshade and preparation method thereof |
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