CN103232632B - Polypropylene composite, preparation method and application thereof - Google Patents
Polypropylene composite, preparation method and application thereof Download PDFInfo
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- CN103232632B CN103232632B CN201310008449.8A CN201310008449A CN103232632B CN 103232632 B CN103232632 B CN 103232632B CN 201310008449 A CN201310008449 A CN 201310008449A CN 103232632 B CN103232632 B CN 103232632B
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Abstract
The invention discloses a kind of polypropylene composite, preparation method and application thereof, the main component of polypropylene composite of the present invention is for comprise by weight: polypropylene 50-100 part; Compatilizer 0-8 part; Weighting agent 0-42 part; Laser absorption promotor 0.2-0.7 part; Photosensitizers 0.5-2 part; Other additive 0-2 part; Tinting pigment 0-0.8 part.Polypropylene composite of the present invention is under the laser absorption promotor of adding small amount and photosensitizers situation, polymer application can reach comparatively ideal effect when laser-marking technical mark, meanwhile, the mechanical property of polyacrylic polymer of the present invention is good, can be widely used in automobile, household electrical appliances and field of electronics.
Description
Technical field
The present invention relates to polymeric material field, particularly a kind of polypropylene composite of laser-markable.
Background technology
Laser-marking technology compares other printing technology, there is plurality of advantages, as not easily wiped, fast, can high, the advantages of environment protection of time variable control, degree of freedom, make its application widely, due to the development of high molecular polymer, laser-marking also fast development is thereupon carried out at polymer surfaces, but due to polyacrylic reasons in structure, with polymer phase ratios such as ABS, PS, not easily absorbing laser, therefore polypropylene and polyacrylic mixture applies laser-marking technology and receives larger restriction.
At present, conventional solution adds laser marking agent in polyacrylic mixture, as inorganic metal salt and metal oxide etc., usually need to add more laser marking agent and just can reach desirable effect, these materials added, make the mechanical property of polymkeric substance also be subject to larger impact.
Summary of the invention
For solving the problem, the present invention is necessary the polypropylene composite providing a kind of laser-markable, and it can reach good laser marking effect when adding a small amount of laser absorption promotor and photosensitizers, and mechanical property is good.
In addition, there is a need to the preparation method that a kind of above-mentioned polypropylene composite is provided.
In addition, there is a need to the application that a kind of above-mentioned polypropylene composite is provided.
A kind of polypropylene composite, its main component is for comprise by weight:
Polypropylene 50-100 part;
Compatilizer 0-8 part;
Weighting agent 0-42 part;
Laser absorption promotor 0.2-0.7 part;
Photosensitizers 0.5-2 part;
Other additive 0-2 part;
Tinting pigment 0-0.8 part;
Wherein, photosensitizers be selected from O-hydroxyl-diphenyl ketone, o-hydroxy triazole, o-hydroxy triazine, salicylate, benzoic ether, laurate one or more.
A kind of polypropylene composite, is made up of by weight following composition:
Polypropylene 50-100 part;
Compatilizer 0-8 part;
Weighting agent 0-42 part;
Laser absorption promotor 0.2-0.7 part;
Photosensitizers 0.5-2 part;
Other additive 0-2 part;
Tinting pigment 0-0.8 part;
Wherein, photosensitizers be selected from O-hydroxyl-diphenyl ketone, o-hydroxy triazole, o-hydroxy triazine, salicylate, benzoic ether, laurate one or more.
Wherein, in above-mentioned polypropylene composite, its main component can also be by weight:
Polypropylene 56-90 part; Compatilizer 3-7 part; Weighting agent 10-38 part; Laser absorption promotor 0.3-0.6 part; Photosensitizers 0.8-1.8 part; Other additive 0-1 part; Tinting pigment 0.3-0.7 part.
Wherein, in above-mentioned polypropylene composite, its main component can also be by weight:
Polypropylene 63-75 part; Compatilizer 5-6 part; Weighting agent 15-30 part; Laser absorption promotor 0.4-0.5 part; Photosensitizers 1-1.8 part; Other additive 0-1 part; Tinting pigment 0.4-0.6 part.
Further preferably, the mixture be made up of polypropylene, compatilizer and weighting agent of every 100 weight parts adds the described laser absorption promotor of 0.2-0.7 weight part, the mixture be made up of polypropylene, compatilizer and weighting agent of every 100 weight parts adds the described photosensitizers of 0.5-2 weight part, namely the weight of described laser absorption promotor accounts for the 0.2-0.7% of described polypropylene, compatilizer and weighting agent gross weight, and the weight of described photosensitizers accounts for the 0.5-2% of described polypropylene, compatilizer and weighting agent gross weight.
Wherein, described laser absorption promotor can be organophosphate compounds, and adding of described laser absorption promotor can improve the regular arrangement level of polypropylene molecular chain, promotes Matrix absorption laser energy.
Wherein, polypropylene composite of the present invention is not containing inorganic phosphate.
Wherein, described laser absorption promotor is preferably selected from two (to tertiary butyl phenoxy group) sodium phosphate salt, 2,2 '-methylene-bis (4,6-di-t-butyl) phenol sodium phosphate salt or 2, one or more of 2 '-methylene-bis (4,6-di-tert-butyl-phenyl) phosphalugel.
Wherein, described polypropylene can be selected from one or more blend of homo-polypropylene, block copolymerization polypropylene or atactic copolymerized polypropene.
Wherein, described compatilizer can be the graftomer of polypropylene and unsaturated carboxylic acid or its acid anhydrides, and described unsaturated carboxylic acid can be toxilic acid.
Wherein, described weighting agent can be any one or the two or more mixture in talcum powder, calcium carbonate, barium sulfate, calcium sulfate, wollastonite, mica, glass microballon, glass fibre.
Wherein, the weighting agent of described weighting agent preferably through crossing through silane coupling agent or titanate coupling agent activation treatment.
Wherein, described tinting pigment is preferably carbon black, and the number of described tinting pigment is preferably 0.2-0.8 part, and described carbon black is preferably thermally oxidized black.
Wherein, other described additive can be antioxidant, the processing aid that lubricant etc. are conventional, other additive described can comprise the oxidation inhibitor of 0-1 weight part and the lubricant of 0-1 weight part, described antioxidant can be the mixture of Hinered phenols primary antioxidant and phosphorous acid esters or thioether class auxiliary anti-oxidant, and described processing aid is one or more mixture of metal soap, stearic acid complex ester class, amides.
A kind of preparation method of polypropylene composite as above, in proportion polypropylene, compatilizer, weighting agent, laser absorption promotor, photosensitizers, tinting pigment, other additive are joined in high-speed mixer blended, then join in screw extrusion press and extrude and granulation, obtain polypropylene composite.
An application for polypropylene composite as above, described polypropylene composite is mainly used in automobile, field of household appliances.
Compare prior art, polypropylene composite of the present invention is when adding laser absorption promotor and the photosensitizers of small amount, comparatively ideal effect can be reached during polymer application laser-marking technical mark, meanwhile, the mechanical property of polyacrylic polymer of the present invention is good, can be widely used in automobile and field of household appliances and field of electronics.
Embodiment
Below in conjunction with some embodiments, the composition of polypropylene composite of the present invention, preparation method are described further.Specific embodiment is for further describing the present invention, non-limiting protection scope of the present invention.
Performance test methods involved in the present invention or standard as follows:
Tensile strength presses ISO527 standard testing;
Modulus in flexure presses ISO178 standard testing;
Izod notched impact strength presses ISO180 standard testing, and the type of socle girder breach is category-A breach;
Laser marking method and evaluation method: the square plate first mixture being injection molded into 100mm*100mm*2mm, then the other side's plate carries out laser-marking.The present invention adopts Nd:YAG laser apparatus (great Cu laser Science and Technology Co., Ltd.) (wavelength 1064nm) to test on-gauge plate, test technology is: electric current 15A, frequency 2.0KHz, step-length 0.003mm, the method of range estimation is adopted to characterize marking effect, be divided into third-class, respectively as well, better and poor, represent that mark is clear, mark is substantially clear and identify fuzzy respectively, for adding the darker polypropylene composite of color after tinting material, mark light color mark, for the polypropylene composite materials substance markers dark mark that color is more shallow.
Material Source used by the present invention can purchase available material on market, wherein
Polypropylene 1: tensile strength is 26MPa, modulus in flexure is 1200MPa, and Izod notched impact strength is 7kJ/m
2;
Polypropylene 2:HP500N (CSPC) mixes by weight 1:1 ratio with SP179 (Lanzhou Petrochemical);
Carbon black: M717(Cabot)
Oxidation inhibitor: Irganox1010, Irgafos168 (Ciba)
Lubricant: ethylene bis stearamide (abbreviation EBS) (commercially available)
Compatilizer: Polybond3200 (Chemtura)
Embodiment 1-7
Get each material by the weight part shown in table 1 to join in mixing machine and be uniformly mixed 5 minutes, obtain mixture, mixture is joined extruding pelletization in twin screw extruder, finally obtain product.By above-mentioned testing method, tensile strength, modulus in flexure, Izod notched impact strength test are carried out successively to obtained polypropylene composite, by it, the results are shown in Table 1, and obtained polypropylene composite is injection molded into the square plate of 100mm*100mm*2mm, then the other side's plate carries out laser-marking, and its laser-marking is evaluated, by the results are shown in Table 1.
Comparative example 1-9
Get each material by the weight part shown in table 2 to join in mixing machine and be uniformly mixed 5 minutes, obtain mixture, mixture is joined extruding pelletization in twin screw extruder, finally obtain product.By above-mentioned testing method, tensile strength, modulus in flexure, Izod notched impact strength test are carried out successively to obtained polypropylene composite, by it, the results are shown in Table 2, and obtained polypropylene composite is injection molded into the square plate of 100mm*100mm*2mm, then the other side's plate carries out laser-marking, and its laser-marking is evaluated, by the results are shown in Table 2.
Table 1
Table 2
As can be seen from table 1 and table 2, embodiment 1-3 and comparative example 1-3 contrasts one by one, embodiment 7 is compared with comparative example 9, for reaching identical laser-marking performance, the gross weight number of the cupric phosphate added in comparative example and antimonous oxide is greater than the gross weight mark of laser absorption promotor and the photosensitizers added in embodiment, embodiment 1-3 and comparative example 1-3 contrasts one by one, and in embodiment, the mechanical property of polypropylene composite is better than the mechanical property of polypropylene composite in comparative example.
Embodiment 1 and comparative example 8 contrast, embodiment 4-7 and comparative example 4-7 contrasts one by one, the laser absorption promotor of using in embodiment is organophosphate, photosensitizers is selected from O-hydroxyl-diphenyl ketone, o-hydroxy triazole, o-hydroxy triazine, salicylate, benzoic ether, laurate, and in comparative example, be laser marking agent main component---cupric phosphate and antimonous oxide conventional at present, as can be seen from test result, when in the consumption and comparative example of laser absorption promotor and photosensitizers in embodiment, laser marking agent is suitable, polypropylene composite in embodiment, its identification is better, mechanical property is better.
Embodiment 8-9, comparative example 10-13
Get each material by the weight part shown in table 3 to join in mixing machine and be uniformly mixed 5 minutes, obtain mixture, mixture is joined extruding pelletization in twin screw extruder, finally obtain product.By above-mentioned testing method, tensile strength, modulus in flexure, Izod notched impact strength test are carried out successively to obtained polypropylene composite, by it, the results are shown in Table 3, first mixture is injection molded into the square plate of 100mm*100mm*2mm, then the other side's plate carries out laser-marking, by the results are shown in Table 3.
Table 3
As shown in Table 3, embodiment 8 compares with comparative example 13, and in polyacrylic polymer, add the embodiment 8 of photosensitizers O-hydroxyl-diphenyl ketone, the identification of the polypropylene composite of its gained is better.As can be seen from embodiment 8 and embodiment 9 and comparative example 10-12, when laser absorption promotor is organophosphate, do laser absorption promotor compared to inorganic phosphate or metal oxide etc., the mark performance of its polypropylene composite is better, and mechanical property is better.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. a polypropylene composite for laser-markable, its main component is for comprise by weight:
Polypropylene 50 ?100 parts;
Compatilizer 0 ?8 parts;
Weighting agent 0 ?42 parts;
Laser absorption promotor 0.2 ?0.7 part;
Photosensitizers 0.5 ?2 parts;
Other additive 0 ?2 parts;
Tinting pigment 0 ?0.8 part;
Wherein, photosensitizers be selected from O-hydroxyl-diphenyl ketone, o-hydroxy triazole, o-hydroxy triazine, salicylate, benzoic ether, laurate one or more;
Described laser absorption promotor is selected from two (to tertiary butyl phenoxy group) sodium phosphate salt, 2,2 ’ ?methylene-bis (4,6 ?di-t-butyl) phenol sodium phosphate salt or 2,2 ’ ?one or more of methylene-bis (4,6 ?di-tert-butyl-phenyl) phosphalugel.
2. a polypropylene composite for laser-markable, is made up of by weight following composition:
Polypropylene 50 ?100 parts;
Compatilizer 0 ?8 parts;
Weighting agent 0 ?42 parts;
Laser absorption promotor 0.2 ?0.7 part;
Photosensitizers 0.5 ?2 parts;
Other additive 0 ?2 parts;
Tinting pigment 0 ?0.8 part;
Wherein, photosensitizers be selected from O-hydroxyl-diphenyl ketone, o-hydroxy triazole, o-hydroxy triazine, salicylate, benzoic ether, laurate one or more;
Described laser absorption promotor is selected from two (to tertiary butyl phenoxy group) sodium phosphate salt, 2,2 ’ ?methylene-bis (4,6 ?di-t-butyl) phenol sodium phosphate salt or 2,2 ’ ?one or more of methylene-bis (4,6 ?di-tert-butyl-phenyl) phosphalugel.
3. polypropylene composite according to claim 1 and 2, is characterized in that: polypropylene 56 ?90 parts; Compatilizer 3 ?7 parts; Weighting agent 10 ?38 parts; Laser absorption promotor 0.3 ?0.6 part; Photosensitizers 0.8 ?1.8 parts; Other additive 0 ?1 part; Tinting pigment 0.3 ?0.7 part.
4. polypropylene composite according to claim 1 and 2, is characterized in that: not containing inorganic phosphate.
5. polypropylene composite according to claim 1 and 2, is characterized in that:
Described polypropylene is selected from one or more blend of homo-polypropylene, block copolymerization polypropylene or atactic copolymerized polypropene.
6. polypropylene composite according to claim 1 and 2, is characterized in that:
Described compatilizer is the graftomer of polypropylene and unsaturated carboxylic acid or its acid anhydrides.
7. polypropylene composite according to claim 1 and 2, is characterized in that:
Described weighting agent is any one or two or more mixtures in talcum powder, calcium carbonate, barium sulfate, calcium sulfate, wollastonite, mica, glass microballon, glass fibre.
8. polypropylene composite according to claim 7, is characterized in that:
Described weighting agent is through the weighting agent crossed through silane coupling agent or titanate coupling agent activation treatment.
9. a preparation method for the polypropylene composite as described in any one of claim 1 ?8, is characterized in that:
In proportion polypropylene, compatilizer, weighting agent, laser absorption promotor, photosensitizers, tinting pigment, other additive are joined in high-speed mixer blended, then join in screw extrusion press and extrude and granulation, obtain polypropylene composite.
10. an application for the polypropylene composite as described in any one of claim 1 ?8, is characterized in that:
Described polypropylene composite is applied to automobile, household electrical appliances and field of electronics.
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| CN111995865B (en) * | 2020-07-28 | 2022-08-16 | 湖南华曙高科技股份有限公司 | Polymer material, preparation method thereof and manufacturing method of polymer product |
| CN114316442B (en) * | 2021-12-21 | 2023-06-20 | 天津金发新材料有限公司 | Modified PP material easy to hot melt weld, high in transparency and easy to laser mark, and preparation method and application thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1195671A (en) * | 1997-03-26 | 1998-10-14 | 通用电气公司 | Compositions stabilized with tertiary amine oxides |
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| CN103509251B (en) * | 2011-07-18 | 2015-12-09 | 余姚市中发工程塑料有限公司 | A kind of plastic special for optical fiber junction box |
| CN102532701A (en) * | 2011-12-16 | 2012-07-04 | 金发科技股份有限公司 | Low-warp creep-resistant polypropylene composite as well as preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1195671A (en) * | 1997-03-26 | 1998-10-14 | 通用电气公司 | Compositions stabilized with tertiary amine oxides |
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Effective date of registration: 20211229 Address after: 221000 No. 1, north of Chunxing road and east of gunche Avenue, Pizhou high tech Industrial Development Zone, Xuzhou City, Jiangsu Province Patentee after: Jiangsu Jinfa renewable resources Co.,Ltd. Address before: 510663 Guangzhou science and Technology Development Zone, Guangdong, China, 33 Patentee before: KINGFA SCI. & TECH. Co.,Ltd. Patentee before: Shanghai golden hair science and Technology Development Co Ltd |