CN114835925A - Aldehyde ketone resin pre-dispersed sand and preparation method thereof - Google Patents

Aldehyde ketone resin pre-dispersed sand and preparation method thereof Download PDF

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CN114835925A
CN114835925A CN202210282624.1A CN202210282624A CN114835925A CN 114835925 A CN114835925 A CN 114835925A CN 202210282624 A CN202210282624 A CN 202210282624A CN 114835925 A CN114835925 A CN 114835925A
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parts
ketone resin
aldehyde ketone
sand
dispersed
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鄢麒麟
鄢洪
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Guangdong Hongkai New Material Technology Co ltd
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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    • C08J3/00Processes of treating or compounding macromolecular substances
    • C08J3/20Compounding polymers with additives, e.g. colouring
    • C08J3/22Compounding polymers with additives, e.g. colouring using masterbatch techniques
    • C08J3/226Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
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    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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    • C09D7/41Organic pigments; Organic dyes
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    • C08J2423/00Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/26Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers modified by chemical after-treatment
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    • C08J2451/00Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
    • C08J2451/06Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
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    • C08J2461/00Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
    • C08J2461/02Condensation polymers of aldehydes or ketones only
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    • C08J2467/00Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
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    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
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Abstract

The invention belongs to the technical field of colored sand preparation, and particularly relates to aldehyde ketone resin pre-dispersed colored sand and a preparation method thereof. The colored sand provided by the invention comprises the following components in parts by weight: 20-45 parts of toner, 25-45 parts of aldehyde ketone resin, 5-25 parts of a high-molecular compatilizer, 1-3 parts of oxidized polyethylene wax, 1-3 parts of ethylene bis stearamide, 1-4 parts of a calcium zinc stabilizer, 1-4 parts of palm oil, 1-3 parts of calcium carbonate, 1-3 parts of mica and 1-5 parts of an auxiliary agent; the aldehyde ketone resin pre-dispersed sand provided by the invention is bright in color, high in glossiness, good in dispersion, coloring, mechanical property, heat resistance, weather resistance and migration resistance, good in color development, high in stability and long in service life when being applied to furniture and industrial paint.

Description

Aldehyde ketone resin pre-dispersed sand and preparation method thereof
Technical Field
The invention belongs to the technical field of color master preparation, and particularly relates to aldehyde ketone resin pre-dispersed color sand and a preparation method thereof.
Background
The aldehyde ketone resin is a resin product obtained by co-condensing cyclohexanone and formaldehyde under certain conditions, has high hardness and low viscosity, and is particularly suitable for use as a modifying additive for paints, inks and the like, but the obtained resin has unstable quality, poor miscibility with hydrocarbon solvents, and dark color, and therefore, the effect of modifying materials such as paints is not satisfactory. The raw materials used by the resin are cheap and rich in sources, and are easy to industrially produce, so that the resin is industrially produced in Japan, America, Germany and the like, and the resin is developed in 70 s in China, but the report and the industrial production are not found all the time. However, due to the structure and the quality of the aldehyde ketone resin, the molecular structure of the aldehyde ketone resin contains carbonyl and the end group is hydroxyl, so that the mechanical property of the resin is low in general, and further the defects of poor wear resistance, peeling, high-temperature instability, short service time and the like may exist in the application process of the aldehyde ketone resin; meanwhile, in the actual industrial production, dyeing is almost an indispensable step for processing resin products, so how to improve the mechanical properties of the aldehyde-ketone resin and obtain the aldehyde-ketone resin solid color master batch/sheet with excellent properties such as good dispersibility, strong coloring, small color difference, heat resistance, weather resistance and the like has important significance for the industrial application of the aldehyde-ketone resin.
At present, partial research reports on the improvement and application of aldehyde ketone resin, chinese patent CN110982178A discloses a functional masterbatch for corona-free polypropylene film, which improves the surface polarity of polypropylene film by maleic anhydride grafted non-polar polymer and aldehyde ketone resin, and replaces the step of corona to generate polar surface, but the invention adopts maleic anhydride grafted non-polar polymer, so it can be blended with non-polar polypropylene to form uniform and stable dispersion, and further increases compatibility by the interaction of the polar group of maleic anhydride itself and aldehyde ketone resin, but the invention generates only the effect of increasing polar group on polypropylene surface and compatibilization by the interaction of the polar group of maleic anhydride and the polar group of aldehyde ketone resin, and does not generate rigid bond, and the application does not relate to the mechanical properties of material, it is even possible to reduce the mechanical strength of the material; chinese patent CN 112852099A discloses a color master batch for solvent-based coating and a preparation method thereof, wherein the color master batch comprises 50-70 parts of carrier resin, 15-28 parts of pigment, 6-12 parts of dispersing agent and 1-5 parts of plasticizer, the temperature resistance of aldehyde ketone resin is improved by improving the synthesized aldehyde ketone resin through synthesized organosilicon, and the patent does not relate to the research on the mechanical property of the color master batch prepared by taking the aldehyde ketone resin as the carrier resin.
In summary, there are few research reports on the mechanical properties of the aldehyde-ketone resin, so that a certain development and research space is provided for how to improve the application of the aldehyde-ketone resin in the technical field of color masterbatch/colored sand coloring by a simpler method beneficial to industrial production.
Disclosure of Invention
In order to solve the problems in the prior art, the invention aims to provide aldehyde ketone resin pre-dispersed sand and a preparation method thereof. The aldehyde ketone resin pre-dispersed sand provided by the invention is bright in color, high in glossiness, good in dispersion, coloring and mechanical properties, heat resistance and weather resistance, long-term stability and mobility resistance, good in color development, high in stability and long in service life when being applied to furniture and industrial paint.
The technical scheme of the invention is as follows:
the aldehyde ketone resin pre-dispersed sand comprises toner, aldehyde ketone resin, a high-molecular compatilizer, oxidized polyethylene wax, ethylene bis stearamide, a calcium zinc stabilizer, palm oil, dimethyl carbonate, calcium carbonate, mica and an auxiliary agent;
the macromolecular compatilizer is a compound of maleic anhydride modified polyester, oxidized polyethylene glycidyl methacrylate and polylactic acid;
preferably, the mass ratio of the maleic anhydride modified polyester to the oxidized polyethylene glycidyl methacrylate to the polylactic acid is 1.5-2.5: 1.2: 0.8;
the auxiliary agent is dimethyl carbonate and N-methyl pyrrolidone in a ratio of 1.2-5.5: 1.
The oxidized polyethylene glycidyl methacrylate and the maleic anhydride modified polyester are purchased from Koies chemical Co., Ltd;
preferably, the oxidized polyethylene glycidyl methacrylate may be W1, W1A, W5D, W5F or W5A;
preferably, the maleic anhydride-modified polyester may be BP-1;
further, the aldehyde ketone resin pre-dispersed color sand comprises the following components in parts by weight:
20-45 parts of toner, 25-45 parts of aldehyde ketone resin, 5-25 parts of a high-molecular compatilizer, 1-5 parts of oxidized polyethylene wax, 1-3 parts of ethylene bis stearamide, 1-4 parts of a calcium zinc stabilizer, 1-4 parts of palm oil, 1-3 parts of calcium carbonate, 1-3 parts of mica and 1-5 parts of an auxiliary agent.
Preferably, the aldehyde ketone resin pre-dispersed sand comprises the following components in parts by weight:
25-35 parts of toner, 30-40 parts of aldehyde ketone resin, 10-20 parts of high-molecular compatilizer, 2-4 parts of oxidized polyethylene wax, 1.8-2.5 parts of ethylene bis stearamide, 2-2.8 parts of calcium zinc stabilizer, 3-4 parts of palm oil, 1.2-2.2 parts of calcium carbonate, 1.5-2.5 parts of mica and 3-5 parts of assistant.
The toner is selected from one or a combination of quinacridone V-19, quinacridone C.I.P.R 122, anthraquinone P.R 177, perylene P.R 179, benzimidazolone C.I.P.R 185, halogen-free 254, DPP P.R 264, DPP PO 71, isoindoline yellow P.Y 139, benzimidazolone P.Y.151, halogen-free green, phthalocyanine blue beta type P.B 15:3, phthalocyanine blue epsilon type P.B 15:6, anthraquinone blue C.I.P.R 60, purple B C.I.P.V 37, blue phase Black, Black C.L.PBK-7 and white pigment PW-6.
The preparation method of the aldehyde ketone resin pre-dispersed sand comprises the following steps:
s1, weighing the raw materials according to the formula ratio, mixing, and stirring at a speed of 2000-5000 r/min for 20-50 min to obtain a pre-dispersed toner mixture;
s2, putting the pre-dispersed toner mixture into a kneading cylinder, heating the kneading cylinder to 140-160 ℃, kneading for 35-45 min, plasticizing into a mass, moving into a three-roller machine, grinding for 15-18 times, further plasticizing, dispersing and developing by a feeding wheel of the three-roller machine at 50-60 ℃, an intermediate wheel at 60-70 ℃ and a discharging wheel at 70-80 ℃ to obtain a preform;
and S3, crushing the preformed product, sieving the crushed preformed product by a sieve with 10-30 meshes, keeping the sand shape uniform, and finally packaging to obtain the sand-free glass.
Finally, the aldehyde ketone resin pre-dispersed sand prepared by the invention can be used in the fields of furniture and industrial paint, but is not limited to the fields.
The color sand disclosed by the invention takes the aldehyde ketone resin as the carrier resin, but the structure of the aldehyde ketone resin causes the aldehyde ketone resin to have lower mechanical properties, heat resistance, weather resistance and the like, so that the color sand is improved by adopting a method of adding a high-molecular compatilizer, the color sand disclosed by the invention adopts a compound of maleic anhydride modified polyester, oxidized polyethylene glycidyl methacrylate and polylactic acid as the compatilizer, the mechanical properties of the color sand are obviously improved, probably because the aldehyde ketone resin and the high-molecular compatilizer generate rigid hydrogen bonds, and the mechanical strength, the heat resistance, the weather resistance and the stability are obviously improved, and meanwhile, the added high-molecular compatilizer can improve the mixing dispersibility of mixed materials, particularly the compatibility between pigment particles and the carrier resin; on the other hand, oxidized polyethylene wax, ethylene-based distearamide, palm oil and dimethyl carbonate are adopted in the colored sand feeding material, the added palm oil has certain wrapping property on pigment particles and can disperse the pigment particles, but the palm oil has certain viscosity, so that the pigment particles are further dispersed by adding the dimethyl carbonate to achieve a more ideal uniform dispersion effect, and meanwhile, the oxidized polyethylene wax and the ethylene-based distearamide also have a certain synergistic effect on the dispersion performance and increase the color development performance; finally, the invention further increases the glossiness, brightness and vividness of the colored sand by adding calcium carbonate and mica.
Compared with the prior art, the aldehyde ketone resin pre-dispersed sand provided by the invention has the following advantages:
(1) the aldehyde ketone resin pre-dispersed color sand provided by the invention improves the mechanical property of the color sand by adding the macromolecular compatilizer, overcomes the defects of low mechanical property, poor heat resistance and poor weather resistance of the aldehyde ketone resin used as a color sand carrier, and reduces the unstable phenomena of peeling, falling and the like generated in the use process of the color sand.
(2) The aldehyde ketone resin pre-dispersed sand prepared by the invention has high brilliance, high transparency, good dispersibility and tinting strength, can be used in furniture and industrial paint, and endows the product with good application performance.
Detailed Description
The present invention is further illustrated by the following description of specific embodiments, which are not intended to limit the invention, and various modifications and improvements can be made by those skilled in the art based on the basic idea of the invention, but the invention is within the protection scope of the invention.
The terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, apparatus, article, or device that comprises a list of steps is not limited to only those steps or modules listed, but may alternatively include other steps not listed or inherent to such process, method, article, or device.
It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
The calcium zinc stabilizer is purchased from Jia plastic Co., Ltd, Dongguan city; maleic anhydride modified polymers, available from koies chemical ltd.
In addition, other reagents used in the invention are common reagents and can be purchased from conventional reagent production and sale companies.
The toners added in the aldehyde ketone resin pre-dispersed sand prepared by the embodiment of the invention are respectively prepared into aldehyde ketone resin pre-dispersed sand with 6 colors by adopting 6 toners in the table 1, and are specifically shown in the table 1;
table 1: kind of toner
Figure BDA0003558440570000051
Example 1 Pre-dispersed Sand of aldehyde ketone resin of the invention and preparation thereof
The formula of the aldehyde ketone resin pre-dispersed sand of the embodiment is as follows:
25kg of toner, 40kg of aldehyde ketone resin, 18kg of high-molecular compatilizer, 2.8kg of oxidized polyethylene wax, 2kg of ethylene bis stearamide, 2.5kg of calcium zinc stabilizer, 3.2kg of palm oil, 1.2kg of calcium carbonate, 1.8kg of mica, 1.91kg of dimethyl carbonate and 1.59kg of N-methylpyrrolidone;
the macromolecular compatilizer is a compound of BP-1, W5F and polylactic acid in a mass ratio of 1.9:1.2: 0.8;
the specific preparation method of the aldehyde ketone solid color master slice in the embodiment is as follows:
s1, weighing and mixing the raw materials according to the formula ratio, and stirring at the speed of 4000r/min for 35min to obtain a pre-dispersed toner mixture;
s2, putting the pre-dispersed toner mixture into a kneading cylinder, heating the kneading cylinder to 122 ℃, kneading for 35min, plasticizing into a mass, moving into a three-roller machine, grinding for 16 times, further plasticizing, dispersing and developing by a feeding wheel of the three-roller machine at 55 ℃, an intermediate wheel at 60 ℃ and a discharging wheel at 75 ℃ to obtain a preform;
s3, crushing the pre-formed product, sieving the crushed pre-formed product by a 10-mesh sieve, keeping the sand shape uniform, and finally packaging the sand-formed product.
Example 2 Pre-dispersed sand of aldehyde ketone resin of the invention and its preparation
The formula of the aldehyde ketone resin pre-dispersed sand of the embodiment is as follows:
30kg of toner, 35kg of aldehyde ketone resin, 15kg of high-molecular compatilizer, 3kg of oxidized polyethylene wax, 2.2kg of ethylene bis stearamide, 2kg of calcium zinc stabilizer, 3.8kg of palm oil, 1.5kg of calcium carbonate, 2.5kg of mica, 3.91kg of dimethyl carbonate and 1.09kg of N-methylpyrrolidone;
the macromolecular compatilizer is a composite of BP-1, W5D and polylactic acid in a mass ratio of 1.5:1.2: 0.8;
the specific preparation method of the aldehyde ketone solid color master slice in the embodiment is as follows:
s1, weighing and mixing the raw materials according to the formula ratio, and stirring at the speed of 4000r/min for 35min to obtain a pre-dispersed toner mixture;
s2, putting the pre-dispersed toner mixture into a kneading cylinder, heating the kneading cylinder to 122 ℃, kneading for 35min, plasticizing into a mass, moving into a three-roller machine, grinding for 16 times, further plasticizing, dispersing and developing by a feeding wheel 58 ℃, an intermediate wheel 62 ℃ and a discharging wheel 75 ℃ of the three-roller machine to obtain a preform;
s3, crushing the pre-formed product, sieving the crushed pre-formed product by a 10-mesh sieve, keeping the sand shape uniform, and finally packaging to obtain the product.
Example 3 Pre-dispersed Sand of aldehyde Ketone resin and preparation thereof
The formula of the aldehyde ketone resin pre-dispersed sand of the embodiment is as follows:
35kg of toner, 36kg of aldehyde ketone resin, 12kg of high-molecular compatilizer, 2kg of oxidized polyethylene wax, 2.5kg of ethylene-based bis-stearamide, 2.5kg of calcium-zinc stabilizer, 3.5kg of palm oil, 2kg of calcium carbonate, 1.5kg of mica, 2.54kg of dimethyl carbonate and 0.46kg of N-methyl pyrrolidone;
the macromolecular compatilizer is a composite of BP-1, W5A and polylactic acid in a mass ratio of 2.5:1.2: 0.8;
the specific preparation method of the aldehyde ketone solid color master slice in the embodiment is as follows:
s1, weighing and mixing the raw materials according to the formula ratio, and stirring at the speed of 4000r/min for 35min to obtain a pre-dispersed toner mixture;
s2, putting the pre-dispersed toner mixture into a kneading cylinder, heating the kneading cylinder to 122 ℃, kneading for 35min, plasticizing into a mass, moving into a three-roller machine, grinding for 16 times, further plasticizing, dispersing and developing by a feeding wheel of the three-roller machine at 55 ℃, an intermediate wheel at 65 ℃ and a discharging wheel at 70 ℃ to obtain a preform;
s3, crushing the pre-formed product, sieving the crushed pre-formed product by a 10-mesh sieve, keeping the sand shape uniform, and finally packaging the sand-formed product.
Test example I, inventive examples 1-3 Pre-dispersed Sand tone of aldehyde ketone resin
An exact tone tester is adopted to test the Lab value of the sample of the embodiment 1-3, which is shown in the table 2 specifically;
table 2: aldehyde ketone resin predispersed sand tone
Figure BDA0003558440570000071
Second test example, Performance test of aldehyde ketone resin predispersed sand in examples 1 to 3 of the invention
Test materials: the aldehyde ketone resin pre-dispersed sand prepared in the embodiment 1-3 of the invention;
the detection indexes comprise: transparency, 60-degree gloss, tinting strength, total color difference, dispersibility, migration resistance, heat resistance, acid and alkali resistance and storage stability, and the specific detection method is as follows:
(1) gloss: testing by using a gloss tester according to the GB-9754 standard, wherein the testing angle is 60 degrees;
(2) transparency: and (3) diluting the sample and the solvent at a ratio of 1:4, adding 20% of color paste into the diluted color paste by using a transparent base material, and comparing with a standard black and white scraping paperboard and a PC transparent film under the same condition, wherein the paperboard and the PC transparent film are transparent, and the PC transparent film is placed on a black bottom to be consistent with the standard, and the standard is judged to be qualified.
(4) The tinting strength, total color difference, dispersibility, migration resistance and heat resistance are measured by adopting QB 1648-92 standard;
(5) acid and alkali resistance: the thinning ratio of a sample to a solvent is 1:4, 20% of color paste and a standard under the same condition are added into the thinned color paste by using a silver paste base material to scrape the color paste on a PET (polyethylene terephthalate) transparent film, one half of the scraped transparent film is soaked in an acidic solution (nitric acid with the concentration of 50% thinned by using clear water) or an alkaline solution (sodium hydroxide with the concentration of 50% thinned by using clear water) for 24 hours, whether differences exist between the soaked part and the un-soaked part or not is removed by visual observation after the time is up, and the qualified part is judged if no difference or no obvious change exists by visual observation;
(6) storage stability: boiling the sample and the solvent at a ratio of 1:4, placing the well-boiled color paste in an oven at 50 ℃ for heat storage, and observing and recording the fineness after the heat storage;
in the detection method, the detection index scores of the transparency, the acid and alkali resistance and the stability are 1-10 points, the score of the standard product is 10 points, which is more than 10 points of the standard product, and the final detection result is shown in table 3 according to the method;
table 3: detection result of performance of aldehyde ketone resin pre-dispersed sand
Figure BDA0003558440570000081
The data in tables 2-3 show that the aldehyde ketone resin pre-dispersed sand meets the first-class standard of QB 1648-92, has good coloring strength, dispersibility, heat resistance and mobility resistance, and meanwhile, the aldehyde ketone resin pre-dispersed sand has 60-degree glossiness of 96-98, high glossiness, bright color, excellent transparency, chromatic aberration of only 0.8-1.0, uniform dispersion and basically no color point.
Third test example, mechanical property detection of aldehyde ketone resin pre-dispersed sand in examples 1 to 3 of the invention
Test materials: the aldehyde ketone resin pre-dispersed sand prepared in the embodiment 1-3 of the invention;
the detection method comprises the following steps: the same mass of colored sand samples in the above examples 1-3 were added to polyvinyl chloride respectively, and injection molded into products, and the influence of the samples on the mechanical properties of the polyvinyl chloride products was examined:
(1) tensile strength: testing by an electronic tension meter according to the method in GB/T1040.3-2006;
(2) impact strength: testing by using an impact tester according to the method in GB/T1843-2008;
(3) flexural modulus: testing according to the method in GB/T9341-2008;
the mechanical property results obtained by the above detection method are shown in table 4;
table 4: mechanical strength of aldehyde ketone resin pre-dispersed sand
Figure BDA0003558440570000091
From the results in Table 4, it can be seen that the polyvinyl chloride plastic products prepared by using the colored sand samples of examples 1 to 3 of the present invention have good mechanical properties, wherein the mechanical properties of example 1 are the best, when the polymer compatibilizer is BP-1, W5F and polylactic acid compound with the mass ratio of 1.9:1.2:0.8, the tensile strength is 52.9MPa, and the impact strength is 33.5KJ/m 3 The bending strength was 102.4MPa, which is the most preferred embodiment of the present invention. And when the relative content of BP-1 is reduced or increased, the mechanical strength of the material is reduced to a certain extent.
Comparative example 1
The difference from the example 1 is that the aldehyde ketone resin pre-dispersed sand feeding component does not contain a high molecular compatilizer, the toner adopts the toner No. 3 in the table 1, the other components are the same as the example 1, and the specific preparation method is the same as the example 1.
Comparative example 2
The difference from the embodiment 1 is that the macromolecular compatilizer in the feeding components of the aldehyde ketone resin pre-dispersed sand is W5F, polylactic acid is 1.2:0.8, the macromolecular compatilizer is complemented with a calcium-zinc stabilizer, the toner is No. 3 toner in the table 1, other components are the same as the embodiment 1, and the specific preparation method is the same as the embodiment 1.
Comparative example 3
The difference from the embodiment 1 is that the macromolecular compatilizer in the feeding component of the aldehyde ketone resin pre-dispersed sand is BP-1: W5F ═ 1.9:1.2, the macromolecular compatilizer is complemented with a calcium-zinc stabilizing agent, the toner adopts No. 3 toner in the table 1, other components are the same as the embodiment 1, and the specific preparation method is the same as the embodiment 1.
Comparative example 4
The difference from the embodiment 1 is that the macromolecular compatilizer in the feeding component of the aldehyde ketone resin pre-dispersed sand is BP-1, polylactic acid is 1.9:0.8, the macromolecular compatilizer is complemented with calcium-zinc stabilizer, the toner is No. 3 toner in the table 1, other components are the same as the embodiment 1, and the specific preparation method is the same as the embodiment 1.
Comparative example 5
The difference from the example 1 is that the aldehyde ketone resin pre-dispersed sand feeding component is not added with dimethyl carbonate, N-methyl pyrrolidone is used for complementing, toner No. 3 in the table 1 is used, other components are the same as the example 1, and the specific preparation method is the same as the example 1.
Comparative example 6
The difference from example 1 is that the aldehyde ketone resin pre-dispersed sand feeding component is not added with N-methyl pyrrolidone, dimethyl carbonate is adopted for complement, toner No. 3 in Table 1 is adopted, other components are the same as example 1, and the specific preparation method is the same as example 1.
Comparative example 7
The difference from example 1 is that the mass ratio of dimethyl carbonate to N-methyl pyrrolidone in the aldehyde ketone resin pre-dispersed sand feeding components is 0.8:1, the toner is No. 3 toner shown in Table 1, other components are the same as those in example 1, and the specific preparation method is the same as that in example 1.
Comparative example 8
The difference from example 1 is that no mica is added in the aldehyde ketone resin pre-dispersed sand feeding component, the calcium zinc stabilizer is used for complementing, the toner is No. 3 toner in Table 1, other components are the same as example 1, and the specific preparation method is the same as example 1.
Performance detection of aldehyde ketone resin pre-dispersed sand in test example four and comparative examples 1-8
Test materials: the aldehyde ketone resin pre-dispersed sand prepared in comparative examples 1-8.
The detection indexes and the detection method are the same as those of the second test example, and the results are shown in Table 5;
table 5: aldehyde ketone solid color master slice performance detection result
Figure BDA0003558440570000111
The results in table 5 show that the addition of the polymeric compatibilizer has a certain influence on the performance of the colored sand, and the possible reason is that the polymeric compatibilizer can promote the compatibility between the carrier resin, i.e., the aldehyde ketone resin, and the pigment particles, so that the adhesion of the pigment particles on the carrier resin can be increased, the transparency can be increased, the color difference can be reduced, and the polymeric compatibilizer can also improve the heat resistance, the migration resistance, the acid and alkali resistance and the stability of the system; on the other hand, dimethyl carbonate also has a remarkable influence on the system, and because agglomeration possibly exists among pigment particles and the pigment particles are difficult to disperse uniformly, in the invention, after dimethyl carbonate is added into the system, the dispersibility of the pigment particles is obviously increased, the pigment particles are better unfolded, the adhesive force is also enhanced, and meanwhile, palm oil is added into the system of the invention, the system has certain viscosity, and the dimethyl carbonate can reduce the agglomeration of the pigment particles caused by the viscosity of the palm oil.
Mechanical properties of aldehyde ketone resin pre-dispersed sand in test example five and comparative examples 1-8
Test materials: the aldehyde ketone resin pre-dispersed sand prepared in comparative examples 1-8.
The detection indexes and the detection method are the same as those of the third test example, and the results are shown in Table 6;
table 6: comparative examples 1-8 color sand mechanical property detection results
Figure BDA0003558440570000121
Comparative example 9
The difference from the example 1 is that the maleic anhydride modified polyester in the high molecular compatilizer is replaced by a maleic anhydride grafted non-polar polymer, specifically shown in table 7, the colored sand toner adopts the toner No. 3 in the table 1, the other components are the same as the example 1, and the specific preparation method is the same as the example 1.
Table 7: maleic anhydride grafted non-polar polymers
Numbering Maleic anhydride grafted non-polar polymers
1 LLDPE-maleic anhydride
2 HDPE-maleic anhydride
3 Maleic anhydride-polypropylene
4 Maleic anhydride-polypropylene wax
5 Styrene-maleic anhydride copolymer
The maleic anhydride modified polyester in the colored sand is respectively replaced by the non-polar polymer grafted by the five groups of maleic anhydride, the transparency of the finally prepared five groups of colored sand is less than 10, the 60-degree gloss is within the range of 86-90, the range of the coloring strength is reduced to 84-89, the total color difference is 3.3-3.4, and the color points of the obtained colored sand are more, probably because the compatibility between the polymers is obviously reduced after the non-polar block is added, the bonding capability between pigment particles and resin is reduced, the migration resistance, the heat resistance, the acid and alkali resistance and the storage stability are obviously reduced compared with those of the embodiment 1, and the tensile strength, the impact strength and the bending strength are reduced by about 8-12% in mechanical property.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims (9)

1. The aldehyde ketone resin pre-dispersed color sand is characterized by comprising a toner, an aldehyde ketone resin, a high-molecular compatilizer, oxidized polyethylene wax, ethylene bis stearamide, a calcium zinc stabilizer, palm oil, calcium carbonate, mica and an auxiliary agent;
the macromolecular compatilizer is a compound of maleic anhydride modified polyester, oxidized polyethylene glycidyl methacrylate and polylactic acid;
the auxiliary agent is dimethyl carbonate and N-methyl pyrrolidone in a ratio of 1.2-5.5: 1.
2. The aldehyde ketone resin predispersed sand of claim 1, wherein the oxidized polyethylene glycidyl methacrylate is selected from one or a combination of W1, W1A, W5D, W5F, or W5A.
3. The aldehyde ketone resin predispersed sand of claim 1, wherein the maleic anhydride-modified polyester is BP-1.
4. The aldehyde ketone resin pre-dispersed sand of claim 1, wherein the mass ratio of the maleic anhydride modified polyester to the oxidized polyethylene glycidyl methacrylate to the polylactic acid is (1.5-2.5): 1.2: 0.8.
5. The aldehyde ketone resin pre-dispersed colored sand of claim 1, wherein the colored sand comprises the following components in parts by weight:
20-45 parts of toner, 25-45 parts of aldehyde ketone resin, 5-25 parts of high-molecular compatilizer, 1-5 parts of oxidized polyethylene wax, 1-3 parts of ethylene bis stearamide, 1-4 parts of calcium zinc stabilizer, 1-4 parts of palm oil, 1-3 parts of calcium carbonate, 1-3 parts of mica and 1-5 parts of assistant.
6. The aldehyde ketone resin pre-dispersed colored sand according to claim 5, wherein the colored sand comprises the following components in parts by weight:
25-35 parts of toner, 30-40 parts of aldehyde ketone resin, 10-20 parts of high-molecular compatilizer, 2-4 parts of oxidized polyethylene wax, 1.8-2.5 parts of ethylene bis stearamide, 2-2.8 parts of calcium zinc stabilizer, 3-4 parts of palm oil, 1.2-2.2 parts of calcium carbonate, 1.5-2.5 parts of mica and 3-5 parts of assistant.
7. The aldehyde ketone resin pre-dispersed sand of claim 1, wherein the toner is selected from one or a combination of quinacridone V-19, quinacridone c.i.p.r 122, anthraquinone P.R 177, perylene P.R 179, benzimidazolone c.i.p.r 185, halogen-free 254, DPP P.R 264, DPP PO 71, isoindoline yellow P.Y 139, benzimidazolone p.y.151, halogen-free green, phthalocyanine blue beta P.B 15:3, phthalocyanine blue epsilon P.B 15:6, anthraquinone blue c.i.p.r 60, violet B c.i.p.v 37, blue-phase Black, Black c.l.pbk-7, white pigment PW-6.
8. A method of preparing the aldehyde ketone resin pre-dispersed sand as claimed in any one of claims 1 to 7, comprising the steps of:
s1, weighing the raw materials according to the formula ratio, mixing, and stirring at a speed of 2000-5000 r/min for 20-50 min to obtain a pre-dispersed toner mixture;
s2, putting the pre-dispersed toner mixture into a kneading cylinder, heating the kneading cylinder to 140-160 ℃, kneading for 35-45 min, plasticizing into a mass, moving into a three-roller machine, grinding for 15-18 times, further plasticizing, dispersing and developing by a feeding wheel of the three-roller machine at 50-60 ℃, an intermediate wheel at 60-70 ℃ and a discharging wheel at 70-80 ℃ to obtain a preform;
and S3, crushing the preformed product, sieving the crushed preformed product by a sieve with 10-30 meshes, keeping the sand shape uniform, and finally packaging to obtain the sand-free glass.
9. Use of the aldehyde ketone resin pre-dispersed sand obtained by the preparation method according to claim 8 in furniture and industrial paint.
CN202210282624.1A 2022-03-22 2022-03-22 Aldehyde ketone resin pre-dispersed sand and preparation method thereof Pending CN114835925A (en)

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