CN112029267A - Polyamide composition applied to xenon lamp aging standard color plate, preparation method of polyamide composition and prepared xenon lamp aging standard color plate - Google Patents
Polyamide composition applied to xenon lamp aging standard color plate, preparation method of polyamide composition and prepared xenon lamp aging standard color plate Download PDFInfo
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- CN112029267A CN112029267A CN202010802235.8A CN202010802235A CN112029267A CN 112029267 A CN112029267 A CN 112029267A CN 202010802235 A CN202010802235 A CN 202010802235A CN 112029267 A CN112029267 A CN 112029267A
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- standard color
- xenon lamp
- color plate
- lamp aging
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/20—Carboxylic acid amides
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/005—Stabilisers against oxidation, heat, light, ozone
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3412—Heterocyclic compounds having nitrogen in the ring having one nitrogen atom in the ring
- C08K5/3432—Six-membered rings
- C08K5/3435—Piperidines
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
- C08K5/3472—Five-membered rings
- C08K5/3475—Five-membered rings condensed with carbocyclic rings
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/527—Cyclic esters
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention discloses a polyamide composition applied to a xenon lamp aging standard color plate, a preparation method thereof and a prepared xenon lamp aging standard color plate. The polyamide composition applied to the xenon lamp aging standard color plate comprises the following components in parts by weight: 99.0-99.9 parts of PA resin, 0-0.4 part of hindered phenol antioxidant 1098, 0-0.4 part of phosphite antioxidant 126 or 608 and 0-0.5 part of light stabilizer, wherein the content of the hindered phenol antioxidant 1098 and the content of the phosphite antioxidant 126 or 608 are not 0 at the same time. The polyamide composition meets the requirement that an antioxidant is not separated out in the aging process through strict screening of the antioxidant, and meanwhile, the PA is used as the base resin, so that the problem that the existing organic standard color plate is easily interfered by a test environment and a background can be solved. Meanwhile, the aging speed of the standard color plate can be regulated and controlled according to the proportion adjustment of the resin and the antioxidant, so that different application requirements are met.
Description
Technical Field
The invention relates to the technical field of light aging resistance of high polymer material performance evaluation, in particular to the technical field of light aging resistance of plastic materials, and more particularly relates to a polyamide composition applied to a xenon lamp aging standard color plate, a preparation method thereof and the prepared xenon lamp aging standard color plate.
Background
The polymer material has the advantages of excellent performance, light weight, easy processing, low price and the like, and is widely applied to the fields of automobiles, household appliances, electronic appliances and the like, but simultaneously, the polymer material can be gradually degraded due to the influence of environmental factors, and finally fails. In view of the complex application environment, the method has great significance for the weather resistance evaluation of the high polymer material. Currently, xenon lamp aging test is one of the most common means for weather resistance evaluation of polymer materials. Meanwhile, polystyrene is widely used for weather resistance evaluation of plastic materials due to its excellent electrical insulation properties, chemical resistance, optical properties, and the like.
The xenon lamp aging test is carried out by firstly adopting a standard substance, correcting test conditions required by a sample to be tested, and then carrying out the test. The existing standard substances applied to xenon lamp aging are mainly standard PS (polystyrene) plates and standard blue wool. The standard PS plate is a transparent sample plate and is easily interfered by the environment and the background in the test process; the standard blue wool is difficult to ensure the smoothness of the surface of a sample in the test process due to the soft material, and further influences the test result. In any standard substance, the aging speed is basically fixed, the requirement of the sample to be tested on the aging condition is variable, sometimes the test is required to be completed as fast as possible, and some standard substances are required to be as slow as possible and carefully collect the aging information, so that the existing standard substances cannot meet the requirement.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a novel polyamide composition applied to a xenon lamp aging standard color plate. The composition can further be used for preparing a xenon lamp aging standard color plate. By finely adjusting the formula of the polyamide composition, standard color plates with different aging speeds can be obtained, thereby meeting different use requirements.
The invention also aims to provide a preparation method of the polyamide composition applied to the xenon lamp aging standard color plate.
The invention also aims to provide a xenon lamp aging standard color plate prepared from the polyamide composition applied to the xenon lamp aging standard color plate.
The invention also aims to provide a xenon lamp aging standard color plate combination consisting of the xenon lamp aging standard color plate.
In order to achieve the purpose, the invention adopts the following technical scheme:
the composition comprises the following components in parts by weight:
wherein the content of the hindered phenol antioxidant 1098 and the content of the phosphite antioxidant 126 or 608 are not 0 at the same time.
In the process of screening the substrate resin, the light aging resistance of the ABS material is poor, yellowing is easy to occur in the storage process, and PC (polycarbonate) and PS (polystyrene) are in a transparent state because samples are mostly transparent and are easy to interfere in the color measurement process, so that PA (polyamide) is selected as the substrate resin, and the interference of the environment and the background in the xenon lamp aging test can be avoided. Preferably, the PA resin may be a commonly used PA6 or PA66 resin.
For convenience of processing, the molecular weight of the PA resin is preferably 10000-20000.
Since the antioxidant is easily precipitated during aging and affects the evaluation of aging properties after precipitation, the amount of the antioxidant added to the standard color plate is generally limited. Repeated experiments prove that the hindered phenol antioxidant 1098 has good compatibility with PA resin and strong antioxidant capacity, and phenolic hydroxyl contained in the hindered phenol antioxidant 1098 reacts with free radicals generated in PA substrate resin to form stable compounds and remove the free radicals; the phosphite antioxidant 126 or the antioxidant 608 can decompose the peroxide produced. The antioxidant can be used independently or used in a matched manner, and the polyamide composition for the xenon lamp aging standard color plate with different aging speeds can be successfully prepared under the condition of limited addition amount of the antioxidant. And other antioxidants are adopted, so that the phenomena of precipitation and the like are easy to occur in the aging test process, and the use requirement of the standard color plate cannot be met. More preferably, the phosphite antioxidant is antioxidant 126.
The light stabilizer can shield or absorb the energy of ultraviolet rays, quench singlet oxygen, decompose hydroperoxide into inactive substances and the like, thereby playing a role in delaying the photoaging of the high polymer material; the ultraviolet light absorber is one of light stabilizers, can absorb ultraviolet parts in sunlight or fluorescent light sources, does not change per se, and plays a role in protecting materials. Therefore, in the invention, a light stabilizer can be added to further adjust the aging effect of the standard color plate. Preferably, the light stabilizer is one or a combination of several of ultraviolet light absorber 326, light stabilizer 770 or light stabilizer 2020.
Preferably, the preparation method of the polyamide composition applied to the xenon lamp aging standard color plate comprises the following steps:
the preparation method comprises the steps of uniformly mixing the PA resin, the hindered phenol antioxidant 1098, the phosphite antioxidant 126 or 608 and the light stabilizer, and then extruding and granulating to obtain the high-performance epoxy resin.
Preferably, the extrusion temperature is 50-260 ℃.
The xenon lamp aging standard color plate is processed by the polyamide composition applied to the xenon lamp aging standard color plate.
The preparation method of the xenon lamp aging standard color plate is prepared from the polyamide composition applied to the xenon lamp aging standard color plate through injection molding, wherein the injection molding temperature is 245-280 ℃.
A xenon lamp aging standard color plate combination comprises at least two xenon lamp aging standard color plates with different aging speeds.
In the combination of the xenon lamp aging standard color plates, in order to distinguish the aging speed of the xenon lamp aging standard color plates, preferably, the difference of the aging time used between any two xenon lamp aging standard color plates under the same aging chromatic aberration is 48-1008 h.
Compared with the prior art, the invention has the following beneficial effects:
the polyamide composition applied to the xenon lamp aging standard color plate selects PA as the substrate resin, so that the interference of the environment and the background in the xenon lamp aging test can be avoided; meanwhile, the proper antioxidant is selected, so that various polyamide compositions with different aging speeds, which are applied to xenon lamp aging standard color plates, can be prepared under the condition of limited addition amount of the antioxidant, and the antioxidant is not precipitated and is suitable for manufacturing the aging standard color plates. The combination of the aging standard color plates with different aging speeds prepared by the method can lead a user to select the needed aging standard color plate according to the requirement of actual test on the aging speed. And the influence of frequent startup and shutdown on the service life of the equipment and the accuracy of the test result can be reduced.
Detailed Description
The present invention is further illustrated by the following specific examples, which are not intended to limit the invention in any way. Reagents, methods and apparatus used in the present invention are conventional in the art unless otherwise indicated. Unless otherwise specified, the starting materials, reagents and solvents used in the present invention are commercially available and have not been subjected to any treatment.
PA6, available from Jiangsu Haiyang chemical fiber Limited under the trademark HY2800A, with a molecular weight of 10000-20000;
antioxidant 1098, available from basf (china) ltd;
antioxidant 126, available from basf (china) ltd;
antioxidant 608, available from chia technologies ltd;
antioxidant 4426, available from Kyowa Kangchi Chemicals, Inc.;
antioxidant 1076, available from basf (china) ltd;
antioxidant 1010 available from basf (china) ltd;
antioxidant 5591, available from sexiu chemical co;
antioxidant 5057, available from basf (china) ltd;
antioxidant EPQ, available from clariant chemical (china) ltd;
antioxidant 512, available from seiko chemical co;
ultraviolet light absorber 326 available from basf (china) ltd;
light stabilizer 770 available from basf (china) ltd;
light stabilizer 2020, available from basf (china) ltd.
Preparation of Standard color plates for examples 1-8 and comparative examples 1-10
According to the formula shown in the table 1 and the table 2, the PA resin, the hindered phenol antioxidant, the phosphate antioxidant and the light stabilizer are uniformly mixed in a high-speed mixer, and then are extruded and injected to prepare the xenon lamp aging standard color plate, wherein the extrusion temperature is 50-260 ℃, and the injection temperature is 245-280 ℃.
Comparative example 11
In the embodiment, the PA6 resin with the molecular weight of 30000 is selected, and in the processing process, due to the fact that the molecular weight is large and the viscosity is large, the problem of uneven dispersion of the additive occurs, and the xenon lamp aging standard color plate cannot be prepared.
Example 11
This example provides a combination of xenon lamp aging standard color panels. For example, the xenon lamp aging standard color plate combinations prepared in examples 1, 3 and 5 have different aging speeds, and one xenon lamp aging standard color plate with an appropriate aging speed can be selected for testing according to actual requirements.
TABLE 1 formulation of each example (parts by weight)
TABLE 2 respective proportional formula (parts by weight)
The photoaging test method comprises the following steps: specifically referring to SAE J2527 standard, a sunlight filter is adopted to carry out an aging test method, and test equipment is a xenon lamp aging box.
The aging test was performed on the standard color plates prepared by processing the compositions of examples 1 to 8 and comparative examples 1 to 10, and the conditions are shown in tables 3 and 4.
TABLE 3 working procedure and aging test conditions for examples and comparative examples
As can be seen from Table 3, the comparative examples adopt other antioxidants, and the antioxidants turn yellow in the processing process, or the prepared xenon lamp aging standard color plate has surface precipitation in the aging process, which interferes with color measurement, and the prepared xenon lamp aging standard color plate is not suitable for being used as an additive to prepare the standard color plate, so that the prepared xenon lamp aging standard color plate cannot be used as the standard color plate.
TABLE 4 results of aging test (color change. DELTA.E) for examples 1 to 8
Table 4 lists the color changes corresponding to part of the aging time of the standard color plate prepared by processing the composition of examples 1-8, and the results in Table 4 show that the xenon lamp aging standard color plates with different aging speeds are prepared, and in the using process, according to the actual test requirements (sometimes the time required by customers is urgent; sometimes a holiday is met, the expected sampling time interval is a little longer), the xenon lamp aging standard color plate with the proper aging speed is selected, so that the influence of frequent startup and shutdown on the service life of equipment and the accuracy of the test result can be reduced; meanwhile, the gray card and the chromatic aberration are two most common methods for evaluating the appearance of a sample, and have certain relevance, the result of the chromatic aberration can be used as a reference for evaluating the gray card, and if the test time is too short, the chromatic aberration is too small, the minimum value of the chromatic aberration corresponding to the gray card rating cannot be reached, so that the covered rating range is not comprehensive enough.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The polyamide composition applied to xenon lamp aging standard color plates is characterized by comprising the following components in parts by weight:
wherein the content of the hindered phenol antioxidant 1098 and the content of the phosphite antioxidant 126 or 608 are not 0 at the same time.
2. The polyamide composition for xenon lamp weathered standard color panels according to claim 1, wherein the PA resin is PA6 or PA 66.
3. The polyamide composition applied to xenon lamp aging standard color plates according to claim 1, wherein the PA resin has a molecular weight of 10000-20000.
4. The polyamide composition applied to xenon lamp aged standard color plates according to claim 1, wherein the light stabilizer is one or a combination of ultraviolet light absorber 326, light stabilizer 770 or light stabilizer 2020.
5. The preparation method of the polyamide composition applied to the xenon lamp aging standard color plate as claimed in any one of claims 1 to 4, is characterized by comprising the following steps:
the preparation method comprises the steps of uniformly mixing the PA resin, the hindered phenol antioxidant 1098, the phosphite antioxidant 126 or 608 and the light stabilizer, and then extruding and granulating to obtain the high-performance epoxy resin.
6. The method of claim 5, wherein the extrusion temperature is 50 to 260 ℃.
7. A xenon lamp aging standard color plate is characterized by being processed from the polyamide composition applied to the xenon lamp aging standard color plate according to any one of claims 1 to 4.
8. The method for preparing the xenon lamp aging standard color plate as claimed in claim 7, wherein the polyamide composition applied to the xenon lamp aging standard color plate as claimed in any one of claims 1 to 4 is prepared by injection molding, wherein the injection molding temperature is 245-280 ℃.
9. A xenon lamp aging standard color plate combination which is characterized by comprising at least two xenon lamp aging standard color plates according to claim 8, wherein the aging speeds of the at least two xenon lamp aging standard color plates are different.
10. The xenon lamp aging standard color plate combination according to claim 9, wherein the aging time difference between any two xenon lamp aging standard color plates is 48-1008 hours under the same aging chromatic aberration.
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| CN202010802235.8A CN112029267A (en) | 2020-08-11 | 2020-08-11 | Polyamide composition applied to xenon lamp aging standard color plate, preparation method of polyamide composition and prepared xenon lamp aging standard color plate |
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| CN202010802235.8A CN112029267A (en) | 2020-08-11 | 2020-08-11 | Polyamide composition applied to xenon lamp aging standard color plate, preparation method of polyamide composition and prepared xenon lamp aging standard color plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112795182A (en) * | 2020-12-30 | 2021-05-14 | 国高材高分子材料产业创新中心有限公司 | Plastic-based standard color plate for xenon lamp aging test and preparation method and application thereof |
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| US5969014A (en) * | 1997-09-23 | 1999-10-19 | Clariant Finance (Bvi) Limited | Synergistic polyamide stabilization method |
| CN106188534A (en) * | 2016-08-23 | 2016-12-07 | 万华化学集团股份有限公司 | A kind of polyamide and preparation method thereof, polyamide material prepared therefrom |
| CN108285640A (en) * | 2017-12-26 | 2018-07-17 | 浙江普利特新材料有限公司 | A kind of resisting high-temperature yellowing nylon material and preparation method thereof |
| CN108795037A (en) * | 2018-06-21 | 2018-11-13 | 广东聚石化学股份有限公司 | A kind of uvioresistant halogen-free reinforced nylon composition and preparation method thereof for fastener |
| CN111040445A (en) * | 2019-12-31 | 2020-04-21 | 苏州旭光聚合物有限公司 | Flame-retardant nylon 66/nylon 6 composite material with high mechanical property |
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2020
- 2020-08-11 CN CN202010802235.8A patent/CN112029267A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5969014A (en) * | 1997-09-23 | 1999-10-19 | Clariant Finance (Bvi) Limited | Synergistic polyamide stabilization method |
| CN106188534A (en) * | 2016-08-23 | 2016-12-07 | 万华化学集团股份有限公司 | A kind of polyamide and preparation method thereof, polyamide material prepared therefrom |
| CN108285640A (en) * | 2017-12-26 | 2018-07-17 | 浙江普利特新材料有限公司 | A kind of resisting high-temperature yellowing nylon material and preparation method thereof |
| CN108795037A (en) * | 2018-06-21 | 2018-11-13 | 广东聚石化学股份有限公司 | A kind of uvioresistant halogen-free reinforced nylon composition and preparation method thereof for fastener |
| CN111040445A (en) * | 2019-12-31 | 2020-04-21 | 苏州旭光聚合物有限公司 | Flame-retardant nylon 66/nylon 6 composite material with high mechanical property |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112795182A (en) * | 2020-12-30 | 2021-05-14 | 国高材高分子材料产业创新中心有限公司 | Plastic-based standard color plate for xenon lamp aging test and preparation method and application thereof |
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Application publication date: 20201204 |