CN115819946A - Polycarbonate black carving white functional master batch and preparation method thereof - Google Patents
Polycarbonate black carving white functional master batch and preparation method thereof Download PDFInfo
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- CN115819946A CN115819946A CN202211530985.XA CN202211530985A CN115819946A CN 115819946 A CN115819946 A CN 115819946A CN 202211530985 A CN202211530985 A CN 202211530985A CN 115819946 A CN115819946 A CN 115819946A
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- 239000004417 polycarbonate Substances 0.000 title claims abstract description 98
- 229920000515 polycarbonate Polymers 0.000 title claims abstract description 97
- 239000004594 Masterbatch (MB) Substances 0.000 title claims abstract description 64
- 238000002360 preparation method Methods 0.000 title abstract description 24
- 230000002087 whitening effect Effects 0.000 claims abstract description 79
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 66
- 239000002994 raw material Substances 0.000 claims abstract description 34
- 239000007822 coupling agent Substances 0.000 claims abstract description 21
- 239000002270 dispersing agent Substances 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 14
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 60
- 239000003607 modifier Substances 0.000 claims description 52
- 239000002253 acid Substances 0.000 claims description 39
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 30
- 239000000395 magnesium oxide Substances 0.000 claims description 30
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 30
- 239000004408 titanium dioxide Substances 0.000 claims description 30
- 239000000243 solution Substances 0.000 claims description 25
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 18
- 239000007864 aqueous solution Substances 0.000 claims description 17
- 238000003756 stirring Methods 0.000 claims description 16
- 238000002156 mixing Methods 0.000 claims description 15
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 10
- 229910017604 nitric acid Inorganic materials 0.000 claims description 10
- 238000001125 extrusion Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 2
- XWGJFPHUCFXLBL-UHFFFAOYSA-M rongalite Chemical compound [Na+].OCS([O-])=O XWGJFPHUCFXLBL-UHFFFAOYSA-M 0.000 claims description 2
- 238000002791 soaking Methods 0.000 claims description 2
- 238000010306 acid treatment Methods 0.000 claims 1
- 239000002131 composite material Substances 0.000 abstract description 9
- 229920000642 polymer Polymers 0.000 abstract description 3
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 18
- GVKDLCPTYCLSQW-YFKNTREVSA-N C(\C=C/C(=O)OC(C)CCCCCC)(=O)OC(C)CCCCCC.[Na] Chemical compound C(\C=C/C(=O)OC(C)CCCCCC)(=O)OC(C)CCCCCC.[Na] GVKDLCPTYCLSQW-YFKNTREVSA-N 0.000 description 15
- 230000000052 comparative effect Effects 0.000 description 14
- -1 oleoyl aminoethyl sulfonate Chemical compound 0.000 description 13
- 238000010147 laser engraving Methods 0.000 description 7
- 239000004033 plastic Substances 0.000 description 7
- 229920003023 plastic Polymers 0.000 description 7
- 239000006087 Silane Coupling Agent Substances 0.000 description 5
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 description 5
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 2
- GUURYVGBDPXTOK-NXVVXOECSA-N dioctan-2-yl (z)-but-2-enedioate Chemical compound CCCCCCC(C)OC(=O)\C=C/C(=O)OC(C)CCCCCC GUURYVGBDPXTOK-NXVVXOECSA-N 0.000 description 2
- 229920006351 engineering plastic Polymers 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- STAVCNDCTTVWEW-UHFFFAOYSA-N NCC[Na] Chemical compound NCC[Na] STAVCNDCTTVWEW-UHFFFAOYSA-N 0.000 description 1
- 102100035329 WD repeat and SOCS box-containing protein 2 Human genes 0.000 description 1
- 101710182039 WD repeat and SOCS box-containing protein 2 Proteins 0.000 description 1
- 229910001361 White metal Inorganic materials 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 125000005587 carbonate group Chemical group 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010330 laser marking Methods 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 125000002811 oleoyl group Chemical group O=C([*])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])/C([H])=C([H])\C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- XVSYDKGNVGRLGO-GMFCBQQYSA-M sodium 2-[[(Z)-nonadec-9-enoyl]amino]ethanesulfonate Chemical compound [Na+].CCCCCCCCC\C=C/CCCCCCCC(=O)NCCS([O-])(=O)=O XVSYDKGNVGRLGO-GMFCBQQYSA-M 0.000 description 1
- 239000010969 white metal Substances 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to the technical field of preparation of polymer composite materials, and particularly discloses a polycarbonate black and white carving functional master batch and a preparation method thereof. The polycarbonate black carving white functional master batch comprises the following raw material components in parts by weight: 80-100 parts of black polycarbonate; 40-60 parts of a whitening agent; 0.5-2 parts of a dispersing agent; 0.5-2 parts of a coupling agent. According to the invention, the white carving agent is added into the black polycarbonate, and the white mark can be printed on the black polycarbonate surface through laser carving printing in the specific application process, so that the black carving function is realized.
Description
Technical Field
The invention relates to the technical field of preparation of polymer composite materials, in particular to polycarbonate black carving white functional master batch and a preparation method thereof.
Background
The laser carving master batch is formed by adding a laser marking auxiliary agent into plastic, so that laser can conveniently and quickly mark pictures and texts on the surface of the plastic. The principle of laser carving and printing the graph and text is that the surface of the plastic is chemically or physically changed through light energy, so that the trace is leaked. The black carved white master batch refers to plastic master batch which can be used for carrying out laser carving on the black plastic surface to obtain a white mark; color is usually developed by adding white metal oxide to black plastic.
Polycarbonate is also called PC plastic, is a high molecular polymer containing carbonate groups in molecular chains, and has become the universal engineering plastic with the highest growth speed among five engineering plastics due to better mechanical property and weather resistance. Due to the wide application of polycarbonate, if the polycarbonate with the black and white carving function is provided, the polycarbonate has important application value for directly printing marks on the surface of the polycarbonate resin.
Disclosure of Invention
In order to overcome at least one technical problem in the prior art, the invention provides a polycarbonate black-carving white functional master batch.
The technical scheme of the invention is as follows:
the invention firstly provides a polycarbonate black-carving white-functional master batch which comprises the following raw material components in parts by weight:
80-100 parts of black polycarbonate; 40-60 parts of a whitening agent; 0.5-2 parts of a dispersing agent; 0.5-2 parts of a coupling agent.
According to the invention, the white carving agent is added into the black polycarbonate, and the white mark can be printed on the surface of the black polycarbonate through laser carving printing in the specific application process.
Preferably, the polycarbonate black carving white functional master batch comprises the following raw material components in parts by weight:
80-90 parts of black polycarbonate; 50-60 parts of a whitening agent; 0.5-1 part of a dispersant; 0.5-1 part of coupling agent.
Most preferably, the polycarbonate black-carving white-functional master batch comprises the following raw material components in parts by weight:
90 parts of black polycarbonate; 50 parts of a whitening agent; 1 part of a dispersant; and 1 part of a coupling agent.
Preferably, the whitening agent consists of magnesium oxide and titanium dioxide.
Preferably, the weight ratio of the magnesium oxide to the titanium dioxide is 1.
Most preferably, the weight ratio of magnesium oxide to titanium dioxide is 1.
Preferably, the whitening agent is a modified whitening agent;
the modified whitening agent is prepared by the following method:
(1) Putting magnesium oxide and titanium dioxide into a mixed acid solution for soaking for 1-2 h, taking out and cleaning to obtain an acid-treated carved white raw material;
(2) Adding the acid-treated whitening raw material prepared in the step (1) into a water solution containing a modifier at 90-100 ℃, and stirring for 1-2 h; and after stirring, separating solids and drying to obtain the modified whitening agent.
Preferably, the mixed acid solution in the step (1) is a mixed acid solution consisting of nitric acid and sulfuric acid in a volume ratio of 1 to 3.
The inventor finds in research that the whitening agent consisting of magnesium oxide and titanium dioxide can play a role in whitening black polycarbonate; however, the inventor finds that the whiteness of the pattern engraved by laser is low in specific application and affects the definition of the pattern by adopting the polycarbonate black engraving functional master batch prepared by adopting the engraving agent consisting of magnesium oxide and titanium dioxide. Therefore, the whiteness of the polycarbonate black-engraved white functional master batch after laser engraving needs to be improved urgently.
In order to overcome the problem, the inventor surprisingly discovers in a large number of experiments that the whiteness of the polycarbonate black and white carved functional master batch after laser carving can be greatly improved by adding the modified whitening agent prepared by modifying the magnesium oxide and the titanium dioxide by the method in the invention into the polycarbonate black and white carved functional master batch compared with the unmodified modified whitening agent consisting of the magnesium oxide and the titanium dioxide.
Preferably, the nitric acid refers to nitric acid with the mass fraction of 50-65%; the sulfuric acid is 70-80% by weight.
Preferably, the volume ratio of the total weight of the magnesium oxide and the titanium dioxide to the mixed acid solution is 1Kg.
Most preferably, the volume ratio of the total weight of the magnesium oxide and the titanium dioxide to the mixed acid solution is 1Kg.
Preferably, the aqueous solution containing the modifier in the step (2) has a mass fraction of 3 to 5%.
Most preferably, the aqueous solution containing the modifier in the step (2) has a mass fraction of 4% of the modifier.
Preferably, the volume ratio of the weight of the acid-treated whitening raw material to the aqueous solution containing the modifier in the step (2) is 1Kg.
Most preferably, the volume ratio of the weight of the acid-treated rongalite to the aqueous solution containing the modifier is 1Kg.
Preferably, the modifier consists of N-methyl oleoyl aminoethyl sulfonate and di-sec-octyl maleate sodium sulfonate in a weight ratio of 3-5.
Most preferably, the modifier consists of sodium N-methyloleoylaminoethyl sulfonate and sodium di-sec-octyl maleate sulfonate in a weight ratio of 4.
In addition, the inventor also surprisingly discovers in research that the modifier is also very critical to the prepared modified whitening agent for greatly improving the whiteness of the polycarbonate black-white-carved functional master batch after laser engraving. The modified whitening agent prepared by the modifier can greatly improve the whiteness of the polycarbonate black-white-carved functional master batch after laser engraving. Research shows that only the modified whitening agent prepared by simultaneously adopting the composite modifier consisting of N-methyl oleoyl aminoethyl sulfonate and sodium di-sec-octyl maleate sulfonate can greatly improve the whiteness of the polycarbonate black-white-carved functional master batch after laser engraving; the modified whitening agent prepared by adopting single N-methyl oleoyl aminoethyl sulfonate or di-sec-octyl maleate sulfonate, or adopting other modifiers or the combination of the modifiers can not greatly improve the whiteness of the polycarbonate black-white carved functional master batch after laser carving.
The invention also provides a preparation method of the polycarbonate black-carving white-functional master batch, which comprises the following steps:
uniformly mixing black polycarbonate, a whitening agent, a dispersing agent and a coupling agent, and putting the mixture into a double-screw extruder for melt extrusion to obtain the polycarbonate black whitening functional master batch.
Has the advantages that: the invention provides a brand-new polycarbonate black-carving white functional master batch; according to the invention, the white carving agent is added into the black polycarbonate, and in the specific application process, the white mark can be printed on the surface of the black polycarbonate through laser carving printing, so that the black carving and white function is realized. Particularly, the modified whitening agent prepared by modifying the magnesium oxide and the titanium dioxide through the method is added into the polycarbonate black-white carving functional master batch, and compared with the unmodified modified whitening agent consisting of the magnesium oxide and the titanium dioxide, the whiteness of the polycarbonate black-white carving functional master batch after laser carving can be greatly improved.
Detailed Description
The present invention will be further explained with reference to specific examples, which are not intended to limit the present invention in any way.
The black polycarbonate in the following examples is black polycarbonate having a brand number of B-8110R from Imperial Japan; the rest raw materials are conventional raw materials which can be purchased by the technical personnel in the field.
EXAMPLE 1 preparation of polycarbonate Black-carving white-functional Master batch
The raw materials comprise the following components in parts by weight: 90 parts of black polycarbonate; 50 parts of a whitening agent; 1 part of dispersant (ethylene bis stearamide); 1 part of coupling agent (silane coupling agent KH-550);
the whitening agent consists of magnesium oxide and titanium dioxide in a weight ratio of 1.
The preparation method comprises the following steps: uniformly mixing black polycarbonate, a whitening agent, a dispersing agent and a coupling agent, and then putting the mixture into a double-screw extruder for melt extrusion to obtain the polycarbonate black whitening functional master batch.
EXAMPLE 2 preparation of polycarbonate Black-carved white functional Master batch
The raw materials comprise the following components in parts by weight: 90 parts of black polycarbonate; 50 parts of modified whitening agent; 1 part of dispersant (ethylene bis stearamide); 1 part of a coupling agent (a silane coupling agent KH-550);
the modified whitening agent is prepared by the following method:
(1) Putting magnesium oxide and titanium dioxide with the weight ratio of 1; wherein the volume ratio of the total weight of the magnesium oxide and the titanium dioxide to the mixed acid solution is 1Kg; the mixed acid solution is formed by mixing 60% by mass of nitric acid and 75% by mass of sulfuric acid according to a volume ratio of 1;
(2) Adding the acid-treated whitening raw material prepared in the step (1) into a 95 ℃ aqueous solution containing a modifier (4 w%), and stirring for 1.5h; after stirring, separating solid and drying to obtain the modified whitening agent; wherein, the volume ratio of the weight of the acid-treated carving white raw material to the water solution containing the modifier is 10L; the modifier consists of N-methyl oleoyl aminoethyl sulfonate and di-sec-octyl maleate sodium sulfonate in a weight ratio of 4.
The preparation method comprises the following steps: uniformly mixing black polycarbonate, a whitening agent, a modified dispersant and a coupling agent, and then putting the mixture into a double-screw extruder for melt extrusion to obtain the polycarbonate black whitening functional master batch.
EXAMPLE 3 preparation of polycarbonate Black-carving white-functional Master batch
The raw materials comprise the following components in parts by weight: 80 parts of black polycarbonate; 40 parts of modified whitening agent; 0.5 part of dispersant (ethylene bis stearamide); 0.5 part of coupling agent (silane coupling agent KH-550);
the modified whitening agent is prepared by the following method:
(1) Putting magnesium oxide and titanium dioxide with the weight ratio of 1; wherein, the volume ratio of the total weight of the magnesium oxide and the titanium dioxide to the mixed acid solution is 1Kg 3L; the mixed acid solution is formed by mixing 65 mass percent of nitric acid and 70 mass percent of sulfuric acid according to a volume ratio of 3;
(2) Adding the acid-treated whitening raw material prepared in the step (1) into a water solution containing a modifier (3 w%) at 90 ℃ and stirring for 2 hours; after stirring, separating solid and drying to obtain the modified whitening agent; wherein, the volume ratio of the weight of the acid-treated whitening raw material to the aqueous solution containing the modifier is 12L; the modifier consists of N-methyl oleoyl aminoethyl sulfonate and di-sec-octyl maleate sodium sulfonate in a weight ratio of 3.
The preparation method comprises the following steps: uniformly mixing black polycarbonate, a whitening agent, a modified dispersant and a coupling agent, and then putting the mixture into a double-screw extruder for melt extrusion to obtain the polycarbonate black whitening functional master batch.
EXAMPLE 4 preparation of polycarbonate Black-carved white functional Master batch
The raw materials comprise the following components in parts by weight: 100 parts of black polycarbonate; 60 parts of modified whitening agent; 2 parts of a dispersing agent (ethylene bis stearamide); 2 parts of a coupling agent (a silane coupling agent KH-550);
the modified whitening agent is prepared by the following method:
(1) Putting magnesium oxide and titanium dioxide with the weight ratio of 1; wherein the volume ratio of the total weight of the magnesium oxide and the titanium dioxide to the mixed acid solution is 1Kg; the mixed acid solution is formed by mixing 50% by mass of nitric acid and 80% by mass of sulfuric acid according to a volume ratio of 1;
(2) Adding the acid-treated whitening raw material prepared in the step (1) into a water solution containing a modifier (5 w%) at 90 ℃ and stirring for 1h; after stirring, separating solid and drying to obtain the modified whitening agent; wherein, the volume ratio of the weight of the acid treated whitening raw material to the aqueous solution containing the modifier is 1Kg; the modifier consists of N-methyl oleoyl aminoethyl sulfonate and di-sec-octyl maleate sodium sulfonate in the weight ratio of 5.
The preparation method comprises the following steps: uniformly mixing black polycarbonate, a whitening agent, a modified dispersant and a coupling agent, and then putting the mixture into a double-screw extruder for melt extrusion to obtain the polycarbonate black whitening functional master batch.
Comparative example 1 preparation of polycarbonate black and white carved functional masterbatch
The raw materials are prepared by the same weight parts as the example 2;
the modified whitening agent is prepared by the following method:
(1) Putting magnesium oxide and titanium dioxide with the weight ratio of 1; wherein the volume ratio of the total weight of the magnesium oxide and the titanium dioxide to the mixed acid solution is 1Kg; the mixed acid solution is formed by mixing nitric acid with the mass fraction of 60% and sulfuric acid with the mass fraction of 75% according to the volume ratio of 1;
(2) Adding the acid-treated whitening raw material prepared in the step (1) into a 95 ℃ aqueous solution containing a modifier (4 w%), and stirring for 1.5h; after stirring, separating solid and drying to obtain the modified whitening agent; wherein, the volume ratio of the weight of the acid-treated carving white raw material to the aqueous solution containing the modifier is 1Kg; the modifier is N-methyl oleoyl amino ethyl sodium sulfonate.
The preparation method comprises the following steps: uniformly mixing black polycarbonate, a whitening agent, a modified dispersant and a coupling agent, and then putting the mixture into a double-screw extruder for melt extrusion to obtain the polycarbonate black whitening functional master batch.
The difference between the comparative example 1 and the example 2 is that the modifier of the comparative example 1 only adopts N-methyl oleoyl aminoethyl sulfonic acid sodium during the preparation process of the modified whitening agent; the modifier in the embodiment 2 adopts a composite modifier consisting of N-methyl oleoyl aminoethyl sulfonate and sodium di-sec-octyl maleate sulfonate.
Comparative example 2 preparation of polycarbonate black-and-white-carving functional masterbatch
The raw materials are prepared by the same weight parts as the example 2;
the modified whitening agent is prepared by the following method:
(1) Putting magnesium oxide and titanium dioxide with the weight ratio of 1; wherein the volume ratio of the total weight of the magnesium oxide and the titanium dioxide to the mixed acid solution is 1Kg; the mixed acid solution is formed by mixing 60% by mass of nitric acid and 75% by mass of sulfuric acid according to a volume ratio of 1;
(2) Adding the acid-treated whitening raw material prepared in the step (1) into a 95 ℃ aqueous solution containing a modifier (4 w%), and stirring for 1.5h; after stirring, separating the solid and drying to obtain the modified whitening agent; wherein, the volume ratio of the weight of the acid-treated carving white raw material to the aqueous solution containing the modifier is 1Kg; the modifier is di-sec-octyl maleate sodium sulfonate.
The preparation method comprises the following steps: uniformly mixing black polycarbonate, a whitening agent, a modified dispersant and a coupling agent, and then putting the mixture into a double-screw extruder for melt extrusion to obtain the polycarbonate black whitening functional master batch.
The difference between the comparative example 2 and the example 2 is that in the preparation process of the modified whitening agent, the modifier of the comparative example 2 only adopts sodium di-sec-octyl maleate sulfonate; the modifier in the embodiment 2 adopts a composite modifier consisting of N-methyl oleoyl aminoethyl sulfonate and sodium di-sec-octyl maleate sulfonate.
Comparative example 3 preparation of polycarbonate black and white carving functional master batch
The raw materials comprise the following components in parts by weight: 90 parts of black polycarbonate; 50 parts of modified whitening agent; 1 part of dispersant (ethylene bis stearamide); 1 part of coupling agent (silane coupling agent KH-550);
the modified whitening agent is prepared by the following method:
(1) Putting magnesium oxide and titanium dioxide with the weight ratio of 1; wherein the volume ratio of the total weight of the magnesium oxide and the titanium dioxide to the mixed acid solution is 1Kg; the mixed acid solution is formed by mixing 60% by mass of nitric acid and 75% by mass of sulfuric acid according to a volume ratio of 1;
(2) Adding the acid-treated whitening raw material prepared in the step (1) into a 95 ℃ aqueous solution containing a modifier (4 w%), and stirring for 1.5h; after stirring, separating solid and drying to obtain the modified whitening agent; wherein, the volume ratio of the weight of the acid-treated carving white raw material to the aqueous solution containing the modifier is 1Kg; the modifier consists of sodium dodecyl sulfate and sodium di-sec-octyl maleate sulfonate in a weight ratio of 4.
The preparation method comprises the following steps: uniformly mixing black polycarbonate, a whitening agent, a modified dispersant and a coupling agent, and then putting the mixture into a double-screw extruder for melt extrusion to obtain the polycarbonate black whitening functional master batch.
The difference between the comparative example 3 and the example 2 is that in the preparation process of the modified whitening agent, the modifier in the comparative example 3 is a composite modifier consisting of sodium dodecyl sulfate and sodium di-sec-octyl maleate sulfonate; the modifier in the embodiment 2 adopts a composite modifier consisting of N-methyl oleoyl aminoethyl sulfonate and sodium di-sec-octyl maleate sulfonate.
Experimental example 1
Respectively carrying out injection molding on the polycarbonate black and white carving functional master batches prepared in the embodiments 1-4 and the comparative examples 1-3 by using an injection molding machine to obtain sample strips; using a laser engraving machine to engrave the same pattern on the surface of the sample strip; and the whiteness of the pattern is tested by a WSB-2 type digital display whiteness meter; the test results are shown in Table 1.
Table 1.
| Whiteness test value | |
| Example 1 polycarbonate Black-white carving functional Master batch | 48.2 |
| Example 2 polycarbonate black and white carving functional master batch | 83.3 |
| Example 3 polycarbonate Black carved white functional Master batch | 76.5 |
| Example 4 polycarbonate Black carved white functional Master batch | 77.9 |
| Comparative example 1 polycarbonate black-carved white functional master batch | 60.7 |
| Comparative example 2 prepared polycarbonate black and white carving functional master batch | 59.1 |
| Comparative example 3 polycarbonate black carved white functional master batch | 57.3 |
As can be seen from the experimental data in Table 1, the whiteness of the polycarbonate black and white carved functional master batches prepared in examples 2-4 after laser carving is greatly higher than that of example 1. This indicates that: compared with the unmodified modified whitening agent consisting of magnesium oxide and titanium dioxide, the whiteness of the polycarbonate black-white carving functional master batch after laser carving can be greatly improved.
As can be seen from the experimental data in Table 1, the whiteness of the polycarbonate black-engraved white functional master batch prepared in comparative examples 1-3 after laser engraving is improved compared with that of example 1, but the improvement range is not large and is far smaller than that of example 2. This indicates that: the modifier is also very critical to whether the prepared modified whitening agent can greatly improve the whiteness of the polycarbonate black-carved white functional master batch after laser carving; the modified whitening agent prepared by the modifier is not randomly selected, so that the whiteness of the polycarbonate black-white-carved functional master batch after laser engraving can be greatly improved; the research shows that the modified sculpture prepared by the composite modifier consisting of N-methyl oleoyl aminoethyl sulfonate and sodium di-sec-octyl maleate sulfonate can synergistically improve the whiteness of the polycarbonate black sculpture white functional master batch after laser sculpture; only the modified whitening agent prepared by simultaneously adopting the composite modifier consisting of N-methyl oleoyl aminoethyl sulfonate and sodium di-sec-octyl maleate sulfonate can greatly improve the whiteness of the polycarbonate black carved white functional master batch after laser carving; the modified whitening agent prepared by adopting single N-methyl oleoyl aminoethyl sulfonate or di-sec-octyl maleate sulfonate or adopting other modifiers or the combination of the modifiers can not greatly improve the whiteness of the polycarbonate black-carved white functional master batch after laser carving.
Claims (10)
1. The polycarbonate black carving white functional master batch is characterized by comprising the following raw material components in parts by weight:
80-100 parts of black polycarbonate; 40-60 parts of a whitening agent; 0.5-2 parts of a dispersing agent; 0.5-2 parts of a coupling agent.
2. The polycarbonate black carving and white carving functional masterbatch according to claim 1 is characterized by comprising the following raw material components in parts by weight:
80-90 parts of black polycarbonate; 50-60 parts of a whitening agent; 0.5-1 part of a dispersant; 0.5-1 part of coupling agent.
3. The polycarbonate black carving and white carving functional masterbatch according to claim 1 is characterized by comprising the following raw material components in parts by weight:
90 parts of black polycarbonate; 50 parts of a whitening agent; 1 part of a dispersant; and 1 part of a coupling agent.
4. The polycarbonate black-carving white functional masterbatch of claim 1 wherein the carving white agent is comprised of magnesium oxide and titanium dioxide.
5. The polycarbonate black carving and white carving functional masterbatch according to claim 4 is characterized in that the weight ratio of the magnesium oxide to the titanium dioxide is 1;
preferably, the weight ratio of the magnesium oxide to the titanium dioxide is 1.
6. The polycarbonate black-carving white functional masterbatch of claim 1 wherein the carving white agent is a modified carving white agent;
the modified whitening agent is prepared by the following method:
(1) Putting magnesium oxide and titanium dioxide into a mixed acid solution for soaking for 1-2 h, taking out and cleaning to obtain an acid-treated carved white raw material;
(2) Adding the acid-treated whitening raw material prepared in the step (1) into a water solution containing a modifier at 90-100 ℃, and stirring for 1-2 h; and after stirring, separating solids and drying to obtain the modified whitening agent.
7. The polycarbonate black-carving white functional master batch as claimed in claim 6, wherein the mixed acid solution in step (1) is a mixed acid solution consisting of nitric acid and sulfuric acid in a volume ratio of 1-3.
8. The polycarbonate black-carving white-functional master batch as claimed in claim 6, wherein the aqueous solution containing the modifier in step (2) comprises 3 to 5 mass percent of the modifier;
most preferably, the aqueous solution containing the modifying agent in the step (2) has a mass fraction of 4%.
9. The polycarbonate black carving white functional masterbatch of claim 6 wherein the volume ratio of the weight of the carving white raw material after acid treatment in step (2) to the aqueous solution containing the modifier is 1Kg.
Most preferably, the volume ratio of the weight of the acid-treated rongalite to the aqueous solution containing the modifier is 1Kg.
10. The method for preparing the polycarbonate black-carved white functional masterbatch of any one of claims 1 to 9, comprising the following steps:
uniformly mixing black polycarbonate, a whitening agent, a dispersing agent and a coupling agent, and then putting the mixture into a double-screw extruder for melt extrusion to obtain the polycarbonate black whitening functional master batch.
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| JP2011032452A (en) * | 2009-08-04 | 2011-02-17 | Samsung Total Petrochemicals Co Ltd | Resin composition for white-laser-marking |
| CN103709489A (en) * | 2012-09-29 | 2014-04-09 | 青岛欣展塑胶有限公司 | General white master batch and preparation method thereof |
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| JP2011032452A (en) * | 2009-08-04 | 2011-02-17 | Samsung Total Petrochemicals Co Ltd | Resin composition for white-laser-marking |
| CN103709489A (en) * | 2012-09-29 | 2014-04-09 | 青岛欣展塑胶有限公司 | General white master batch and preparation method thereof |
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