CN111378274A - Composite material containing polyamide functional master batch with fragrant smell and flocking simulating effect and preparation method thereof - Google Patents
Composite material containing polyamide functional master batch with fragrant smell and flocking simulating effect and preparation method thereof Download PDFInfo
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- CN111378274A CN111378274A CN201911308796.6A CN201911308796A CN111378274A CN 111378274 A CN111378274 A CN 111378274A CN 201911308796 A CN201911308796 A CN 201911308796A CN 111378274 A CN111378274 A CN 111378274A
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
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Abstract
The invention discloses a composite material containing polyamide functional master batches with fragrant smell and flocking imitating effect and a preparation method thereof, wherein the composite material is composed of 10-20 parts of modified green tea powder functional master batches, 76-89 parts of polyether ester resin and 1-4 parts of auxiliary agents such as an antioxidant. The compatibility of the green tea powder and the polyamide resin is effectively improved by carrying out surface treatment on the natural green tea powder, so that the prepared polyamide composite material has good mechanical properties. Meanwhile, the green tea powder has the fresh scent of natural green tea, so that parts prepared from the composite material have the fresh scent of the green tea. In addition, because the dark green tea powder is used as the filling agent, a plurality of dark small spots appear on the surface of the light-colored part such as beige or gray and the like prepared by the composite material after color matching treatment, and the flocking effect is similar.
Description
Technical Field
The invention relates to a functional polyamide material and a preparation method thereof, in particular to a preparation method of a polyamide functional master batch with faint scent and a flocking imitating effect and a composite material thereof, belonging to the technical field of polyamide.
Background
The polyamide material has the advantages of excellent mechanical property, high strength, good heat resistance and the like, and is widely applied to a plurality of fields of automobiles, machinery, chemical industry, electronics and the like. However, after the conventional polyamide material is subjected to high-temperature melt extrusion, the odor of a part product prepared from the conventional polyamide material is poor due to the thermal degradation of a macromolecular chain segment, and the application of the conventional polyamide material in related fields, particularly the fields of automobile interior materials, indoor furniture materials and the like is influenced. At present, with respect to the improvement of the odor of polyester materials, some researches have been made by experts and scholars at home and abroad, mainly focusing on two ways of controlling the odor of materials by reducing the residual contents of components in the form of monomers and oligomers in the production process of polyamide polymers, such as patents: CN201711021323.9 discloses a low-odor polyamide composition and a preparation method thereof, which can inactivate impurities causing the catalytic degradation of polyamide materials by introducing phosphate antioxidants, and reduce the content of residual monomers and oligomers in the production process of polyamide, thereby achieving the purpose of reducing the odor of the materials. Secondly, the odor of the polymer material is controlled by introducing an odor adsorbent to adsorb residual monomers and oligomers of the polyamide in the production process, such as the following patents: CN201510973763.9 discloses a low-emission high-heat-resistance polyamide composite material and a preparation method thereof, wherein the low-odor and low-emission performance of the polyamide material is realized by adding an additive and a composition of a molecular sieve and combining a copper salt heat stabilizer. The two methods for improving the odor of the polyamide material are mainly focused on the improvement on the odor intensity, the type of improving the odor of the material is not obvious, and the prepared material still has the unique glue odor of plastics.
At present, no report is found for a polyamide composite material with a flocking-imitating effect. According to the invention, by adding the modified green tea powder functional master batch, the green tea powder has natural green tea fresh scent, so that the especially modified polyamide composite material has green tea fresh scent, and in addition, the dark green tea powder is used as a filling agent, so that the surface of a light-color part such as beige or gray and the like prepared by the composite material prepared by the modified green tea powder after color matching treatment has a plurality of dark small spots, and the effect similar to flocking is achieved.
Disclosure of Invention
The invention provides a modified master batch prepared by superfine natural green tea powder and polyether ester (PET-PEG) resin after surface treatment by polyethylene glycol (PEG), and then the modified master batch is blended and extruded with polyamide resin, auxiliary agent and the like. The surface treatment modification is carried out on the natural green tea powder, so that the compatibility of the green tea powder and the polyamide resin is effectively improved, the performance loss caused by independently adding unmodified green tea powder is greatly improved, and the prepared modified polyamide material has good mechanical property. Meanwhile, the green tea powder has natural green tea fresh scent, so that parts prepared by the composite material have the green tea fresh scent. In addition, because the dark green tea powder is used as the filling agent, a plurality of dark small spots appear on the surface of the light-colored part such as beige or gray and the like prepared by the composite material after color matching treatment, and the flocking effect is similar.
In order to achieve the purpose, the invention is mainly realized by the following technical scheme:
the composite material containing the polyamide functional master batch with fragrant smell and the flocking simulating effect is prepared from the following raw materials in parts by weight:
polyamide-based resin: 75 to 88 parts by weight of
Modified green tea powder master batch: 10 to 20 portions of
Auxiliary agent: 2-5 parts;
the modified green tea powder master batch is prepared from the following components in parts by weight:
modified green tea powder: 70-80 parts;
polyether ester (PET-PEG) resin: 18-28 parts of a binder;
auxiliary agent: 2-5 parts.
In the above composite material:
the polyamide resin is one or a combination of PA6, PA66, PA610 and PA 612.
The modified green tea powder is prepared by crushing and grinding green tea leaves with the particle size of 1um to 100um and then carrying out surface activation modification by polyethylene glycol (PEG).
The auxiliary agent is one or a mixture of more of an antioxidant 1076(β - (3, 5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate), an antioxidant 168 (tris (2, 4-di-tert-butylphenyl) phosphite and an antioxidant DSTP (dioctadecyl thiodipropionate).
The green tea powder is prepared by crushing and grinding green tea leaves with the particle size of 1um to 100 um.
The polyether ester resin (PET-PEG) is a copolymer of polyethylene terephthalate and polyethylene glycol, wherein the content of the polyether component is not less than 60 wt%.
The invention also aims to provide a preparation method of the composite material containing the polyamide functional master batch with fragrant smell and flocking imitating effect, which mainly comprises the following preparation steps:
(1) preparing the modified green tea powder functional master batch:
i. surface modification of green tea powder
90-95 parts of green tea powder with the particle size of 50-200 um and 5-10 parts of polyethylene glycol (PEG) surface modifier are added into a high-speed mixing roll together according to the parts by weight, and the green tea powder is prepared by high-speed mixing.
ii, preparation of modified green tea powder master batch
According to parts by weight, 70-80 parts of green tea powder subjected to surface passivation treatment by polyethylene glycol (PEG), 18-28 parts of polyether ester resin (PET-PEG) and 2-5 parts of an auxiliary agent are added into a mixer to be uniformly mixed, and then the mixture is added into a double-screw extruder to be melted, extruded, cooled and cut into granules to prepare the green tea powder.
The processing temperatures of the I-X areas of the double-screw extruder are set to 235 ℃, 235 ℃, 240 ℃, 240 ℃, 245 ℃, 245 ℃, 250 ℃, 250 ℃, 255 ℃ and 255 ℃ in sequence. The rotating speed of the main screw is 100-200 r/min.
(2) A preparation method of a polyamide composite material with fragrant smell and imitation flocking effect comprises the following steps:
adding 10-20 parts by weight of the tea powder master batch prepared in the step (1), 76-89 parts by weight of conventional polyamide resin and composition resin thereof and 1-4 parts by weight of auxiliary agent into a mixer, uniformly mixing, and then melting, extruding, cooling and granulating by a double-screw extruder to prepare the polyamide composite material with fragrant taste and the flocking simulating effect.
The processing temperatures of the I-X zones of the double-screw extruder are set to be 250 ℃, 255 ℃, 255 ℃, 265 ℃, 265 ℃, 270 ℃, 270 ℃, 275 ℃ and 280 ℃ in sequence. The rotating speed of the main screw is 300-450 r/min, and the temperature of the water tank is 23-40 ℃.
The surface modifier is preferably polyethylene glycol resin with the molecular weight of 6000 to 10000.
Compared with the prior art, the invention has the following technical advantages:
(1) according to the polyamide functional master batch with fragrant smell and the flocking-imitating effect and the preparation method of the composite material of the polyamide functional master batch, polyethylene glycol (PEG) is used as a surface treatment agent of green tea powder, the green tea powder after surface treatment has better heat resistance and compatibility with polyamide resin, and the polyamide composite material prepared by using the polyethylene glycol (PEG) as a modification auxiliary agent has good mechanical property, meanwhile, has the green tea fresh scent peculiar to the green tea powder, and is lasting in scent and environment-friendly.
(2) According to the polyamide functional master batch with fragrant smell and the flocking effect imitation and the preparation method of the composite material of the polyamide functional master batch, the dark green tea powder is used as the filling agent, so that a plurality of dark small spots appear on the surface of a light-color part such as beige or gray and the like prepared by the composite material after color matching treatment, the composite material has the effect similar to flocking, and compared with a fabric coated part prepared by processes such as low-pressure injection molding or glue bonding, the composite material has the advantages of low comprehensive cost, high production efficiency, environmental protection, recoverability and the like and has very strong market prospect.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be emphasized that these examples are only for the purpose of further illustration of the present invention and are not to be construed as limiting the scope of the present invention. Further, it should be understood that various changes or modifications can be made by those skilled in the art after reading the disclosure of the present invention, and equivalents fall within the scope of the appended claims.
The specific examples 1-5 and the corresponding comparative examples 1-2 employ the following raw materials and preparation processes:
raw materials:
polyamide resin: PA6 resin, commercially available;
unmodified green tea powder: is green tea powder with average particle size of 150um, and is commercially available;
surface treating agent: polyethylene glycol (PEG) with a molecular weight of 10000, commercially available;
polyether ester resin: is a copolymer of PET and PEG with polyether content of 60 percent and is sold in the market;
the auxiliary agent is one or a mixture of more of an antioxidant 1010(β - (3, 5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate), an antioxidant 168 (tris (2, 4-di-tert-butylphenyl) phosphite and an antioxidant DSTP (dioctadecyl thiodipropionate);
toner: titanium dioxide color master batches, carbon black master batches, iron oxide yellow master batches and iron oxide red master batches, which are commercially available;
the preparation process flow comprises the following steps:
(1) preparing the modified green tea powder functional master batch:
i. preparation of modified green tea powder
According to the weight parts in the table 2, 95 parts of green tea powder with the particle size of 150um and 5 parts of organosilane surface modifier are added into a high-speed mixing roll together and are mixed at a high speed to prepare the green tea.
ii, preparation of modified green tea powder functional master batch
According to the parts by weight in table 2, PA6 raw material resin, modified green tea powder, antioxidant: 1076; other auxiliary agents: 168 auxiliary antioxidant additives are added into a mixer together and mixed evenly, and then added into a double-screw extruder to be prepared through melting, extruding, cooling and granulating.
The processing temperature of the I-X area of the double-screw extruder is set to 190 ℃, 205 ℃, 215 ℃, 235 ℃, 235 ℃, 235 ℃, 240 ℃, 245 ℃ and 245 ℃ in sequence. The rotating speed of the main screw is 200 r/min.
(2) A preparation method of a PA6 composite material with faint scent and a flocking simulating effect comprises the following steps:
mixing the modified green tea powder functional master batch prepared in the step (1) with PA6 raw material resin, 1076 antioxidant and other auxiliary agents according to the weight parts in the following table 3: lubricant: the vinyl distearamide and the toner master batch are added into a high-speed mixer together and mixed evenly, and then are added into a double-screw extruder, and the mixture is melted, extruded, cooled and cut into granules by the double-screw extruder to prepare the PA6 composite material with fragrant smell, low density and flocking simulating effect.
The processing temperatures of the I-X zones of the double-screw extruder are set to be 250 ℃, 255 ℃, 255 ℃, 265 ℃, 265 ℃, 270 ℃, 270 ℃, 275 ℃ and 280 ℃ in sequence. The rotating speed of the main screw is 350r/min, and the temperature of the water tank is 40 ℃.
The PA6 composite material with faint scent and the flocking-imitating effect prepared in the above examples 1 to 5 and the corresponding comparative examples 1 to 4 was injection-molded into corresponding test sample strips according to a unified process, and performance tests were performed according to the test standards and conditions in the following table 1, with the test data shown in table 3.
TABLE 1 fragrance, flocking imitating PA6 composite material capable of testing standard and condition
| Serial number | Inspection index | Inspection method | Unit of | Test conditions |
| 1 | Density of | GB/T1033.1 | g/cm^3 | |
| 2 | Notched impact strength | GB/T1043 | kJ/m^2 | 23℃ |
| 3 | Smell(s) | PV3900 (public automobile) | Class/odor type | 50g of particles, 80 ℃/2h |
| 4 | Evaluation of flocking-like effect | / | Clear/slight/no effect |
95 parts of green tea powder with the particle size of 150um and 5 parts of organosilane surface modifier are added into a high-speed mixing mill together, and the modified green tea powder filler is prepared after high-speed mixing, so that the heat resistance of the green tea powder and the compatibility of the green tea powder and PA6 resin are effectively improved. Then preparing the prepared modified green tea powder filler and auxiliary agents such as PET-PEG polyether ester resin, antioxidant and the like into modified green tea powder functional master batch by a twin-screw according to a certain proportion:
TABLE 2 modified Green tea powder and typical formula table of functional master batch thereof
According to the PA6 composite material with fragrant smell and the imitated flocking effect, the modified green tea powder functional master batch 2 prepared in the step (1), PA6 raw material resin, antioxidant auxiliary agent master batch and toner master batch are added into a high-speed mixer together according to the parts by weight in the table 3 and are uniformly mixed, then the mixture is added into a double-screw extruder, and the mixture is melted, extruded, cooled and cut into granules through the double-screw extruder to prepare the PA6 composite material with fragrant smell and the imitated flocking effect, wherein the formula and the performance are respectively shown in the table 3 and the table 4:
table 4 examples 1-5 are formulas of PA6 composite materials with faint scent and imitation flocking effect
Table 4 Performance of PA6 composites with faint scent and flocking imitating effect in examples 1 to 5
In table 3, examples 1 to 5 are test results of a PA6 composite material with a faint scent and a flocking-simulating effect according to the present invention, and corresponding comparative examples 1 to 4 are used as comparison examples to better show the scent type and flocking-simulating effect of the PA6 functional master batch with the faint scent and the flocking-simulating effect and the preparation method of the composite material. From table 4 the following conclusions can be drawn:
the surface modification technology of the invention carries out surface modification on the superfine green tea powder, thus improving the compatibility of the green tea powder and the PA6 resin, greatly improving the impact toughness loss caused by independently adding the unmodified green tea powder, and simultaneously having good mechanical property and the unique green tea fresh scent of the green tea powder, and the scent is lasting and green and environment-friendly.
According to the preparation method of the PA6 composite material with fragrant smell and the imitated flocking effect, disclosed by the invention, because dark green tea powder is used as the filler, a plurality of dark small spots appear on the surface of a light-color part such as beige or gray and the like prepared by the specially prepared composite material after color matching treatment, the composite material has the effect similar to flocking, and compared with a fabric-coated part prepared by processes such as low-pressure injection molding or glue bonding, the composite material has the advantages of low comprehensive cost, high production efficiency, environmental friendliness, recyclability and the like and has very strong market prospect.
Claims (8)
1. The composite material containing the polyamide functional master batch with fragrant smell and flocking simulating effect is characterized in that: the composition is prepared from the following raw materials in parts by weight:
polyamide-based resin: 75 to 88 parts by weight of
Modified green tea powder master batch: 10 to 20 portions of
Auxiliary agent: 2-5 parts;
the modified green tea powder master batch is prepared from the following components in parts by weight:
modified green tea powder: 70-80 parts;
polyether ester (PET-PEG) resin: 18-28 parts of a binder;
auxiliary agent: 2-5 parts.
2. The composite material containing the polyamide functional master batch with fragrant smell and flocking simulating effect as claimed in claim 1, wherein: the polyamide resin is one or a combination of PA6, PA66, PA610 and PA 612.
3. The composite material containing the polyamide functional master batch with fragrant smell and flocking simulating effect as claimed in claim 1, wherein: the modified green tea powder is prepared by crushing and grinding green tea leaves with the particle size of 1um to 100um and then carrying out surface activation modification by polyethylene glycol (PEG).
4. The composite material containing the polyamide functional master batch with the fragrant smell and the flocking imitating effect as claimed in claim 1, wherein the auxiliary agent is one or a mixture of more of an antioxidant 1076(β - (3, 5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate), an antioxidant 168 (tris (2, 4-di-tert-butylphenyl) phosphite and an antioxidant DSTP (dioctadecyl thiodipropionate).
5. The composite material containing the polyamide functional master batch with fragrant smell and flocking simulating effect as claimed in claim 1, wherein: the green tea powder is prepared by crushing and grinding green tea leaves with the particle size of 1um to 100 um.
6. The composite material containing the polyamide functional master batch with fragrant smell and flocking simulating effect as claimed in claim 1, wherein: the polyether ester resin (PET-PEG) is a copolymer of polyethylene terephthalate and polyethylene glycol, wherein the content of the polyether component is not less than 60 wt%.
7. The preparation method of the composite material containing the aromatic and flocking imitating polyamide functional master batch as claimed in any one of claims 1 to 6, is characterized in that: the preparation method comprises the following preparation steps:
(1) preparing the modified green tea powder functional master batch:
i. surface modification of green tea powder:
adding green tea powder with the particle size of 50-200 um, 90-95 parts and 5-10 parts of polyethylene glycol (PEG) surface modifier into a high-speed mixing roll together according to parts by weight, and mixing at a high speed to prepare the green tea powder;
ii, preparing modified green tea powder master batch:
according to parts by weight, adding 70-80 parts of green tea powder subjected to surface passivation treatment by polyethylene glycol (PEG), 18-28 parts of polyether ester resin (PET-PEG) and 2-5 parts of an auxiliary agent into a mixer, uniformly mixing, adding into a double-screw extruder, and melting, extruding, cooling and granulating to prepare the green tea powder;
the processing temperatures of the I-X areas of the double-screw extruder are set to 235 ℃, 235 ℃, 240 ℃, 240 ℃, 245 ℃, 245 ℃, 250 ℃, 250 ℃, 255 ℃ and 255 ℃ in sequence. The rotating speed of the main screw is 100-200 r/min;
(2) a preparation method of a polyamide composite material with fragrant smell and imitation flocking effect comprises the following steps:
adding 10-20 parts by weight of the tea powder master batch prepared in the step (1), 76-89 parts by weight of conventional polyamide resin and composition resin thereof and 1-4 parts by weight of auxiliary agent into a mixer, uniformly mixing, and then melting, extruding, cooling and granulating by a double-screw extruder to prepare the polyamide composite material with faint scent and the flocking simulating effect;
the processing temperatures of the I-X zones of the double-screw extruder are set to be 250 ℃, 255 ℃, 255 ℃, 265 ℃, 265 ℃, 270 ℃, 270 ℃, 275 ℃ and 280 ℃ in sequence. The rotating speed of the main screw is 300-450 r/min, and the temperature of the water tank is 23-40 ℃.
8. The method of claim 7, wherein: the surface modifier is polyethylene glycol resin with the molecular weight of 6000 to 10000.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109486160A (en) * | 2018-12-29 | 2019-03-19 | 上海普利特复合材料股份有限公司 | A kind of preparation method of smell faint scent, the PC/ABS functional agglomerate of imitative flocking effect and its composite material |
| CN109679334A (en) * | 2018-12-29 | 2019-04-26 | 上海普利特复合材料股份有限公司 | A kind of smell faint scent, polyamides implant of imitative flocking effect and preparation method thereof |
| CN109679220A (en) * | 2018-12-29 | 2019-04-26 | 上海普利特复合材料股份有限公司 | A kind of smell faint scent, low-density, PP composite material of imitative flocking effect and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109486160A (en) * | 2018-12-29 | 2019-03-19 | 上海普利特复合材料股份有限公司 | A kind of preparation method of smell faint scent, the PC/ABS functional agglomerate of imitative flocking effect and its composite material |
| CN109679334A (en) * | 2018-12-29 | 2019-04-26 | 上海普利特复合材料股份有限公司 | A kind of smell faint scent, polyamides implant of imitative flocking effect and preparation method thereof |
| CN109679220A (en) * | 2018-12-29 | 2019-04-26 | 上海普利特复合材料股份有限公司 | A kind of smell faint scent, low-density, PP composite material of imitative flocking effect and preparation method thereof |
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