CN116478531B - Orange nylon 6 composite material with high color stability and preparation method and application thereof - Google Patents
Orange nylon 6 composite material with high color stability and preparation method and application thereof Download PDFInfo
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- CN116478531B CN116478531B CN202310526808.2A CN202310526808A CN116478531B CN 116478531 B CN116478531 B CN 116478531B CN 202310526808 A CN202310526808 A CN 202310526808A CN 116478531 B CN116478531 B CN 116478531B
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- 229920002292 Nylon 6 Polymers 0.000 title claims abstract description 51
- 239000002131 composite material Substances 0.000 title claims abstract description 44
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000004014 plasticizer Substances 0.000 claims abstract description 21
- ZPSZXWVBMOMXED-UHFFFAOYSA-N 2-(2-bromo-5-chlorophenyl)acetic acid Chemical compound OC(=O)CC1=CC(Cl)=CC=C1Br ZPSZXWVBMOMXED-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000002904 solvent Substances 0.000 claims abstract description 18
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 14
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 14
- 239000000843 powder Substances 0.000 claims abstract description 14
- 150000001875 compounds Chemical class 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 12
- 239000000314 lubricant Substances 0.000 claims abstract description 10
- 238000012545 processing Methods 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 239000011347 resin Substances 0.000 claims abstract description 8
- 229920005989 resin Polymers 0.000 claims abstract description 8
- 239000001038 titanium pigment Substances 0.000 claims abstract description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 7
- IPRJXAGUEGOFGG-UHFFFAOYSA-N N-butylbenzenesulfonamide Chemical compound CCCCNS(=O)(=O)C1=CC=CC=C1 IPRJXAGUEGOFGG-UHFFFAOYSA-N 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 229920001296 polysiloxane Polymers 0.000 claims description 4
- 239000004753 textile Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000004408 titanium dioxide Substances 0.000 claims description 3
- 101100501135 Escherichia coli O157:H7 ehaG gene Proteins 0.000 claims description 2
- OKOBUGCCXMIKDM-UHFFFAOYSA-N Irganox 1098 Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)NCCCCCCNC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 OKOBUGCCXMIKDM-UHFFFAOYSA-N 0.000 claims description 2
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 claims description 2
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims description 2
- TXQVDVNAKHFQPP-UHFFFAOYSA-N [3-hydroxy-2,2-bis(hydroxymethyl)propyl] octadecanoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(CO)(CO)CO TXQVDVNAKHFQPP-UHFFFAOYSA-N 0.000 claims description 2
- WNSXUAGCWVZDQC-UHFFFAOYSA-N n-ethylbenzenesulfonamide Chemical compound CCNS(=O)(=O)C1=CC=CC=C1 WNSXUAGCWVZDQC-UHFFFAOYSA-N 0.000 claims description 2
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 claims 1
- 239000010703 silicon Substances 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 abstract description 26
- 230000008859 change Effects 0.000 abstract description 20
- 238000002845 discoloration Methods 0.000 abstract description 16
- XOFYZVNMUHMLCC-ZPOLXVRWSA-N prednisone Chemical compound O=C1C=C[C@]2(C)[C@H]3C(=O)C[C@](C)([C@@](CC4)(O)C(=O)CO)[C@@H]4[C@@H]3CCC2=C1 XOFYZVNMUHMLCC-ZPOLXVRWSA-N 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 8
- 230000002195 synergetic effect Effects 0.000 abstract description 3
- 230000004075 alteration Effects 0.000 abstract description 2
- 239000002861 polymer material Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 18
- 230000000052 comparative effect Effects 0.000 description 9
- 239000004677 Nylon Substances 0.000 description 8
- 229920001778 nylon Polymers 0.000 description 8
- 238000012360 testing method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 239000000243 solution Substances 0.000 description 4
- MMXSKTNPRXHINM-UHFFFAOYSA-N cerium(3+);trisulfide Chemical compound [S-2].[S-2].[S-2].[Ce+3].[Ce+3] MMXSKTNPRXHINM-UHFFFAOYSA-N 0.000 description 3
- 239000001053 orange pigment Substances 0.000 description 3
- 235000010215 titanium dioxide Nutrition 0.000 description 3
- 239000003086 colorant Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 125000003368 amide group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- ZMIGMASIKSOYAM-UHFFFAOYSA-N cerium Chemical compound [Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce] ZMIGMASIKSOYAM-UHFFFAOYSA-N 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M potassium hydroxide Substances [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- 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
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention relates to an orange nylon 6 composite material with high color stability, and a preparation method and application thereof, and belongs to the technical field of high polymer materials. The composite material comprises the following components: polyamide 6 resin, orange powder compound (a mixture of solvent orange 116 and solvent orange 60 according to a certain mass ratio), plasticizer, titanium pigment, antioxidant and processing lubricant. By adding solvent orange 116 and solvent orange 60 into nylon 6, the principle that the corresponding delta L, delta a and delta b change in opposite directions and consistent speed in the moisture absorption process can offset the change of chromatic aberration delta E (delta E= (deltaL 2+△a2+△b2)1/2) and simultaneously combine the synergistic effect of a small amount of plasticizer to solve the problem of serious moisture absorption and discoloration of an orange nylon 6 product in the placing and using processes.
Description
Technical Field
The invention belongs to the technical field of high polymer materials, and relates to an orange nylon 6 composite material with high color stability, and a preparation method and application thereof.
Background
Nylon 6 is a high molecular compound polymerized from caprolactam, and is also called polyamide 6. Nylon 6 has the characteristics of high mechanical strength, good toughness, compression resistance, tensile resistance, chemical corrosion resistance, wear resistance and the like, and is widely applied to the fields of textile, automobiles, aerospace, general machinery, electronics, electric appliances, instruments, household appliances, office instruments and the like. With the continuous development of nylon 6 application, the color of the corresponding product is gradually required. To meet the demands of various color products, nylon 6 needs to be dyed. However, the amide groups in the molecular chain of nylon 6 are very easy to form hydrogen bonds with water molecules, so that the nylon 6 is serious in moisture absorption, and serious in color change in the placing and using processes, especially orange, yellow, red and other gorgeous colors, and the appearance of the product and the matching degree of other matching parts are greatly influenced. In order to solve the problem of serious discoloration of nylon 6 caused by moisture absorption, people have started to explore solutions.
CN113201216a discloses a nylon with high color stability and a preparation method thereof. According to the patent, the product is modified by taking cerium sulfide with specific content as a pigment, so that the obtained nylon is firm in coloring, and the color change condition of the nylon after moisture absorption is remarkably improved. Because cerium in the cerium sulfide is a rare earth element, the use of the cerium sulfide in nylon can give the product a fluorescent bright red effect.
Based on the technical proposal of the prior art that the color change of nylon 6 caused by moisture absorption is serious, the method is especially for orange nylon 6. Therefore, there is a need to develop an orange nylon 6 composite material with high color stability, thereby providing a new idea for how to improve the color stability of orange nylon 6.
Disclosure of Invention
Accordingly, it is an object of the present invention to provide a high color stable orange nylon 6 composite; the second purpose of the invention is to provide a preparation method of the orange nylon 6 composite material with high color stability; the invention further aims to provide the application of the orange nylon 6 composite material with high color stability in textile, automobile, aerospace, general machinery, electronic and electric, instrument and meter, household appliances or office instruments.
In order to achieve the above purpose, the present invention provides the following technical solutions:
1. The orange nylon 6 composite material with high color stability comprises the following components in parts by weight: 94-97 parts of polyamide 6 resin, 0.2-0.3 part of orange powder compound, 1-3 parts of plasticizer, 0.4-0.6 part of titanium dioxide, 0.5-0.8 part of antioxidant and 0.3-0.8 part of processing lubricant;
the orange powder compound is a mixture formed by solvent orange 116 and solvent orange 60; the mass ratio of the solvent orange 116 to the solvent orange 60 is 1.5-2:1.
Preferably, the plasticizer is any one of N-butyl benzene sulfonamide or N-ethyl benzene sulfonamide.
Preferably, the antioxidant is any one or more of antioxidant 1010, antioxidant 168, antioxidant 1098, antioxidant 1076, antioxidant H10 or antioxidant H161.
Preferably, the processing lubricant is any one or more of silicone wax, silicone or pentaerythritol stearate.
2. The preparation method of the composite material comprises the following steps: uniformly mixing polyamide 6 resin, orange powder compound, plasticizer, titanium pigment, antioxidant and processing lubricant, and then placing in an extruder, and carrying out melting, blending, extrusion, drawing, granulating and drying.
Preferably, the temperature of each section of the extruder from the main feed inlet to the machine head is as follows: 200-210 ℃, 210-220 ℃, 220-230 ℃, 230-240 ℃, 240-250 ℃, 230-240 ℃, 220-230 ℃; the rotating speed of the extruder is 300-350 r/min.
3. The composite material is applied to textile, automobile, aerospace, general machinery, electronics and electricity, instruments and meters, household appliances or office instruments.
The invention has the beneficial effects that: the invention provides an orange nylon 6 composite material with high color stability. The composite material comprises the following components: polyamide 6 resin, orange powder compound, plasticizer, titanium pigment, antioxidant and processing lubricant. Wherein the orange powder compound is a mixture formed by solvent orange 116 and solvent orange 60 according to a certain mass ratio. The orange nylon 6 composite material prepared by the formula in the preferred range solves the problem of serious moisture absorption and discoloration in the placing and using processes of the orange nylon 6 product by combining the synergistic effect of a small amount of plasticizer by utilizing the principle that the change directions of delta L, delta a and delta b of different orange pigments are opposite and the speeds are consistent in the moisture absorption process, and the color difference delta E (delta E= (deltaL 2+△a2+△b2)1/2) is changed, namely the color difference delta E is less than 0.3 under the long-term moisture absorption condition and the mechanical property of the material is not influenced under the condition that the moisture absorption rate tends to be balanced in 60 days.
The invention also provides a preparation method of the orange nylon 6 composite material with high color stability. The method is simple, easy to operate and suitable for expanded production.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objects and other advantages of the invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.
Drawings
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in the following preferred detail with reference to the accompanying drawings, in which:
FIG. 1 is a schematic diagram of the color difference change of the high color stability orange nylon 6 composite material of the present invention under the condition of moisture absorption.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be noted that the illustrations provided in the following embodiments merely illustrate the basic idea of the present invention by way of illustration, and the following embodiments and features in the embodiments may be combined with each other without conflict.
Examples 1 to 6
The high color stable orange nylon 6 composites of examples 1-6 contained the following components, the formulation of each component being shown in table 1:
Polyamide 6 resin: brand M2400;
orange powder formulation: solvent orange 116 and solvent orange 60;
And (3) a plasticizer: n-butylbenzenesulfonamide;
Titanium white powder: titanium dioxide;
an antioxidant: h161;
machining lubricant: silicone wax, trade mark E525;
table 1 proportions of the components of the orange nylon 6 composite of examples 1 to 6, which were highly color stable
The specific preparation method of each composite material in examples 1 to 6 is as follows: the polyamide 6 resin, the orange powder compound, the plasticizer, the titanium pigment, the antioxidant and the processing lubricant are uniformly mixed according to the corresponding proportion, and then are placed in an extruder, and are subjected to melting, blending, extrusion, drawing, granulating and drying, wherein the temperature of each section of the extruder from a main feed inlet to a machine head is 210 ℃, 220 ℃, 230 ℃, 240 ℃, 250 ℃, 240 ℃, 230 ℃ and the rotating speed of the extruder is 350 r/min.
Comparative examples 1 to 6
The differences from examples 1 to 6 are that the composition of the components or the proportions of the components in the composite material are different, as shown in Table 2:
table2 proportions of the respective components in the composite materials of comparative examples 1 to 6
The specific preparation method of each composite material in comparative examples 1 to 6 is as follows: the components are uniformly mixed according to the proportion in the table 2, and then are placed in an extruder, and are subjected to melting, blending, extrusion, drawing, granulating and drying (wherein the temperature of each section of the extruder from a main feed inlet to a machine head is 210 ℃, 220 ℃, 230 ℃, 240 ℃, 250 ℃, 240 ℃, 230 ℃ and the rotating speed of the extruder is 350 r/min).
FIG. 1 is a schematic diagram of the color difference change of the high color stability orange nylon 6 composite of the present application under hygroscopic conditions. In fig. 1, the formula Δe= ("Δl 2+△a2+△b2)1/2" in Δl 2+△a2+△b2)1/2 "indicates the degree of difference between two colors, i.e., the larger the Δe value, the larger the color difference, the larger the color change, whereas the smaller the value, the smaller the measured color difference, the smaller the color change, Δl is the amount of black-and-white deviation, the positive value turns white, the negative value turns black, Δa is the amount of red-green deviation, the positive value turns red, the negative value turns green, Δb is the amount of yellow-blue deviation, the positive value turns yellow, and the negative value turns blue, when solvent orange 116 is added to an orange nylon material, the change of Δl, Δa, Δb is positive and negative under the moisture absorption condition, when solvent orange 60 is added to an orange nylon material, the change of Δl, Δa, Δb is negative and positive and negative, and Δc is negative, respectively, and when the solvent orange 60 is added to an orange nylon material, the mixture formed by compounding according to a specific ratio, the change of solvent orange 116, Δl, Δb and Δc is small, the change of Δc is small under the moisture absorption condition, and Δc is small, thereby the composite color change is realized, and the composite color change is small, i.e., the composite color change is small, and the nylon material is small is stable under long-term, and the composite color change is realized, and the color is small, and the composite color is small under 6, and is made.
Performance testing
To verify the properties of the high color stability orange nylon 6 composite material obtained in the present invention, the respective materials of examples 1 to 6 and comparative examples 1 to 6 were subjected to the moisture absorption discoloration, moisture absorption rate, tensile strength, flexural modulus and notched impact strength test, and the test results are shown in table 3. The specific test method is as follows:
(1) Test of hygroscopic discoloration and hygroscopicity: a. the materials corresponding to examples 1 to 6 and comparative examples 1 to 6 were placed in a vacuum oven and dried at 120℃for 3 hours, then each material was injection molded into a panel having a size of 60 mm. Times.60 mm. Times.2 mm and a smooth surface by an injection molding machine, and after cooling each panel in an atmosphere of 23℃and 55% humidity, the L, a, b values and weights of each panel were measured at 0 day (reference standard), 1 day, 7 days, 30 days and 60 days by using a color difference meter (D65 light source) and a balance, respectively, and the corresponding DeltaL, deltaa, deltab, deltaE and moisture absorption were calculated;
(2) Tensile strength test: according to the latest standard of ISO 527;
(3) Flexural modulus test: according to the latest standard of ISO 178;
(4) Notched impact strength test: according to the ISO 180 latest standard.
TABLE 3 comparison of the hygroscopic discoloration, the hygroscopic Rate, the tensile Strength, the flexural modulus and the notched impact Strength Properties of the corresponding materials in examples 1 to 6 and comparative examples 1 to 6
As can be seen from table 3, the ratio of solvent orange 116 to solvent orange 60 and the plasticizer content have a critical effect on the discoloration effect of the nylon 6 material after moisture absorption. The discoloration of the material after moisture absorption can be significantly improved when the ratio of solvent orange 116 to solvent orange 60 is 1.8:1 and the plasticizer is 3 parts.
As for the ratio of the solvent orange 116 to the solvent orange 60, it can be found through comparative examples 1 to 3 and comparative examples 1 to 4 that when the component of the orange powder compound in the nylon 6 composite material is only the solvent orange 116 or the solvent orange 60, the corresponding delta E value is rapidly increased, which indicates that the moisture absorption and discoloration of the composite material are very serious; in the nylon 6 composite material, when the orange powder compound component contains both solvent orange 116 and solvent orange 60, the change directions of the solvent orange 116 and the solvent orange 60 in the moisture absorption process are opposite, so that the delta E value of the prepared composite material is reduced, and the color change is smaller. When the ratio of the solvent orange 116 to the solvent orange 60 is 1.8:1, the delta E value of the corresponding composite material is minimum, and the moisture absorption and discoloration conditions are light.
As for the plasticizer, it was found by comparing examples 4 to 6 and comparative examples 5 to 6 that when no plasticizer was added to the nylon 6 composite, the hygroscopic discoloration of the material was serious, and the fluctuation of Δl, Δa, Δb and Δe values was large; when 5 parts of plasticizer is added to the nylon 6 material, although the hygroscopic discoloration of the material is light, the tensile strength and flexural modulus are lowered, thereby affecting the rigidity of the material. Namely, a small amount of plasticizer can improve the discoloration condition of the nylon 6 material after moisture absorption, but if the addition amount of the plasticizer is insufficient, the moisture absorption discoloration improvement effect is not obvious; if the addition amount of the plasticizer is too large, the physical and chemical properties of the nylon 6 material are affected although the moisture absorption and discoloration conditions are light.
In summary, the invention provides an orange nylon 6 composite material with high color stability. By adding two orange pigments, namely solvent orange 116 and solvent orange 60, into nylon 6, the principle that the changes of delta L, delta a and delta b are opposite in direction and consistent in speed in the moisture absorption process of the two orange pigments can offset the changes of chromatic aberration delta E can be utilized, and meanwhile, the problem that the orange nylon 6 product is serious in moisture absorption and discoloration in the placing and using processes is solved on the premise that the mechanical properties of materials are not affected by the synergistic effect of a small amount of plasticizer.
The invention also provides a preparation method of the orange nylon 6 composite material with high color stability. The method is simple, easy to operate and suitable for expanded production.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the present invention, which is intended to be covered by the claims of the present invention.
Claims (6)
1. A high color stable orange nylon 6 composite, characterized in that: the composite material comprises the following components in parts by weight: 94-97 parts of polyamide 6 resin, 0.2-0.3 part of orange powder compound, 1-3 parts of plasticizer, 0.4-0.6 part of titanium dioxide, 0.5-0.8 part of antioxidant and 0.3-0.8 part of processing lubricant;
The orange powder compound is a mixture formed by solvent orange 116 and solvent orange 60; the mass ratio of the solvent orange 116 to the solvent orange 60 is 1.5-2:1;
the plasticizer is any one of N-butyl benzene sulfonamide or N-ethyl benzene sulfonamide.
2. The composite material of claim 1, wherein: the antioxidant is any one or more of antioxidant 1010, antioxidant 168, antioxidant 1098, antioxidant 1076, antioxidant H10 or antioxidant H161.
3. The composite material of claim 1, wherein: the processing lubricant is any one or more of silicon wax, silicone or pentaerythritol stearate.
4. A method of producing a composite material according to any one of claims 1 to 3, characterized in that: the preparation method comprises the following steps: uniformly mixing polyamide 6 resin, orange powder compound, plasticizer, titanium pigment, antioxidant and processing lubricant, and then placing in an extruder, and carrying out melting, blending, extrusion, drawing, granulating and drying.
5. The method of manufacturing according to claim 4, wherein: the temperature of each section of the extruder from the main feed inlet to the machine head is as follows: 200-210 ℃, 210-220 ℃, 220-230 ℃, 230-240 ℃, 240-250 ℃, 230-240 ℃, 220-230 ℃; the rotating speed of the extruder is 300-350 r/min.
6. Use of a composite material according to any one of claims 1 to 3 in textile, automotive, aerospace, general-purpose machinery, electrical electronics, instrumentation, household appliances or office equipment.
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002194208A (en) * | 2000-12-27 | 2002-07-10 | Daicel Degussa Ltd | Red-colored polyamide resin composition |
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