CN111117076A - Special modified material with mildew-proof function for coating bucket - Google Patents
Special modified material with mildew-proof function for coating bucket Download PDFInfo
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- CN111117076A CN111117076A CN201911358950.0A CN201911358950A CN111117076A CN 111117076 A CN111117076 A CN 111117076A CN 201911358950 A CN201911358950 A CN 201911358950A CN 111117076 A CN111117076 A CN 111117076A
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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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
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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
- C08K5/0058—Biocides
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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
- C08K5/0091—Complexes with metal-heteroatom-bonds
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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
- C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
- C08K5/45—Heterocyclic compounds having sulfur in the ring
- C08K5/46—Heterocyclic compounds having sulfur in the ring with oxygen or nitrogen in the ring
- C08K5/47—Thiazoles
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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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
- C08K7/26—Silicon- containing compounds
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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
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
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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
- C08K9/00—Use of pretreated ingredients
- C08K9/12—Adsorbed ingredients, e.g. ingredients on carriers
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
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- Biodiversity & Conservation Biology (AREA)
- Paints Or Removers (AREA)
Abstract
The invention belongs to the technical field of plastic modification, and particularly relates to a special modified material with a mildew-proof function for a paint bucket, which is prepared from polypropylene, an antibacterial mildew-proof agent, modified attapulgite, a dispersing agent, a coupling agent and an antioxidant; the antibacterial mildew preventive comprises, by weight, 100 parts of polypropylene, 0.3-1.5 parts of antibacterial mildew preventive, 1.5-7.5 parts of modified attapulgite, 0.3-0.8 part of dispersing agent, 0.3-0.8 part of coupling agent and 0.5-1 part of antioxidant, wherein the amount of the antibacterial mildew preventive is 0.3-1.5 parts; according to the special modified material for the coating barrel, the modified attapulgite is used as a carrier of the antibacterial mildew preventive and is doped into the polypropylene resin, and the special modified material for the coating barrel is obtained through melt blending, so that the antibacterial mildew preventive can be reliably dispersed in the polypropylene resin, and the problem of reduction of physical properties of the polypropylene resin caused by uneven dispersion of the antibacterial mildew preventive is solved.
Description
Technical Field
The invention belongs to the technical field of plastic modification, and particularly relates to a modified material with a mildew-proof function special for a paint bucket.
Background
At present, plastic products play an increasingly important role in daily life of people, however, because various additives are added into a system of the plastic products, and the interface of materials is easily polluted by bacteria or moulds, the propagation and spread of harmful bacteria are directly caused, and the physical health of peripheral users are not facilitated, the mildew preventive is used as an additive, the mildew preventive enters cells through cell membranes of spores, and the spores are killed or the germination of the spores is prevented, so that the purpose of preventing and controlling the growth of the moulds is achieved, however, the mildew preventive has a great influence on the mildew preventive capability due to the dispersion effect of the mildew preventive in the plastic products, and the physical performance of the plastic products is possibly reduced due to poor dispersion effect, so that the plastic products are difficult to meet the use requirements of strict conditions.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a modified material special for a paint bucket with a mildew-proof function.
In order to achieve the purpose, the invention adopts the following technical scheme:
a modified material with a mildew-proof function special for a coating bucket comprises polypropylene, an antibacterial mildew-proof agent, modified attapulgite, a dispersing agent, a coupling agent and an antioxidant;
the antibacterial mildew preventive comprises, by weight, 100 parts of polypropylene, 0.3-1.5 parts of antibacterial mildew preventive, 1.5-7.5 parts of modified attapulgite, 0.3-0.8 part of dispersing agent, 0.3-0.8 part of coupling agent and 0.5-1 part of antioxidant, wherein the amount of the antibacterial mildew preventive is 0.3-1.5 parts;
the preparation method of the modified attapulgite comprises the following steps: heating the attapulgite powder at the high temperature of 580-600 ℃, grinding, refining, adding a composite coupling agent, stirring, heating to 80 ℃, keeping the temperature for 2-3h, adding a dispersing agent, continuously stirring, keeping the temperature for 30min, and drying the product to obtain the modified attapulgite;
wherein the composite coupling agent is a coupling agent KH590 and a silane coupling agent in a weight ratio of 1: (1.5-2) are compounded.
According to the technical scheme provided by the invention, the modified attapulgite and the antibacterial mildew preventive are doped into the polypropylene, and the antibacterial mildew preventive takes the modified attapulgite as a carrier to realize uniform dispersion in the polypropylene resin; and through reliable uniform dispersion, the paint bucket made of the polypropylene resin has good mildew resistance, the influence of the introduction of the antibacterial mildew preventive on the physical properties of the paint bucket can be overcome, and the use requirement of the paint bucket can be met.
In the invention, the attapulgite is a layer chain-shaped hydrous aluminum-magnesium silicate mineral, the crystal structure in the attapulgite is folded and changed to be damaged by treating the attapulgite at the high temperature of 580-600 ℃, the zeolite pore channel and the surface performance of the attapulgite are greatly improved, and the enrichment and adsorption capacity of the antibacterial and antifungal agent are greatly enhanced by the mixed modification treatment of the composite coupling agent and the dispersing agent, so that the attapulgite can be better dispersed in polypropylene resin.
In the present invention, preferably, the antibacterial and antifungal agent is used in an amount of 0.6 parts by weight, the modified attapulgite is used in an amount of 3 parts by weight, the dispersant is used in an amount of 0.5 parts by weight, the coupling agent is used in an amount of 0.7 parts by weight, and the antioxidant is used in an amount of 0.8 parts by weight, based on 100 parts by weight of the polypropylene.
In the invention, the polypropylene is copolymerized polypropylene, the melt index is 0.3-1.5g/10min, and the melt index test condition is 190 ℃ and 2.16 kg.
In the invention, the antibacterial mildew preventive is prepared by mixing zinc pyrithione and thiazole antibacterial agent according to the weight ratio of (2-4): 1 are mixed.
In the invention, the dispersant is one of ethylene bis stearamide, polyethylene wax, stearic acid and white oil;
the coupling agent is one of KH-570, KH550, KH560 and KH 792;
the antioxidant is one of an antioxidant 1010 and an antioxidant 168, or a combination thereof.
In the invention, the preparation method of the special modified material with the mildew-proof function for the paint bucket comprises the following steps:
(1) adding the modified attapulgite and the antibacterial mildew preventive into a high-speed mixer for premixing, then adding the dispersant, the coupling agent and the antioxidant, and continuously stirring and mixing to obtain a raw material mixture I;
(2) and (3) feeding the raw material mixture I and polypropylene resin into an extruder, and carrying out melt mixing, extrusion, cooling and grain cutting to obtain the special modified material for the coating barrel.
Compared with the prior art, the invention has the following technical effects:
according to the special modified material for the coating barrel, the modified attapulgite is used as a carrier of the antibacterial mildew preventive and is doped into the polypropylene resin, and the special modified material for the coating barrel is obtained through melt blending, so that the antibacterial mildew preventive can be reliably dispersed in the polypropylene resin, and the problem of reduction of physical properties of the polypropylene resin caused by uneven dispersion of the antibacterial mildew preventive is solved.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further clarified with the specific embodiments.
All the starting materials in the present invention, the sources of which are not particularly limited, may be either commercially available or prepared according to conventional methods well known to those skilled in the art.
All the raw materials used in the present invention are not particularly limited in purity, and the present invention preferably employs a purity which is conventional in the field of analytical purification or composite materials.
Example 1
A special modified material for a paint bucket comprises polypropylene, an antibacterial mildew preventive, modified attapulgite, a dispersant ethylene bis stearamide, a coupling agent KH-570 and an antioxidant 1010;
the antibacterial mildew preventive comprises 100 parts by weight of polypropylene, 0.6 part by weight of antibacterial mildew preventive, 3 parts by weight of modified attapulgite, 0.5 part by weight of dispersant ethylene bis stearamide, 0.7 part by weight of coupling agent KH-570 and 0.8 part by weight of antioxidant 1010;
the polypropylene is copolymerized polypropylene, the melt index of the polypropylene is 1.2g/10min, and the melt index test condition is 190 ℃ and 2.16 kg; the antibacterial mildew preventive is prepared from zinc pyrithione and thiazole antibacterial agents in a weight ratio of 3: 1, mixing;
the preparation method of the modified attapulgite comprises the following steps: heating attapulgite powder at 580 ℃, grinding, refining, adding a composite coupling agent which is 0.04 times of the weight of the attapulgite powder, stirring, heating to 80 ℃, then preserving heat for 2 hours, adding a dispersing agent ethylene bis stearamide which is 0.03 times of the weight of the attapulgite powder, continuing stirring, preserving heat for 30 minutes, and drying the product to obtain the modified attapulgite;
wherein the composite coupling agent is a coupling agent KH590 and a silane coupling agent in a weight ratio of 1: 1.6 are compounded.
Example 2
The embodiment is basically the same as the special modified material for the coating barrel in the embodiment 1, and the difference is that the preparation method of the modified attapulgite comprises the following steps: heating attapulgite powder at the high temperature of 580-600 ℃, grinding, refining, adding a composite coupling agent with the weight of 0.03 time of that of the attapulgite powder, stirring, heating to 80 ℃, then preserving heat for 3 hours, adding a dispersant ethylene bis stearamide with the weight of 0.03 time of that of the attapulgite powder, continuing stirring and preserving heat for 30 minutes, and drying the product to obtain the modified attapulgite; wherein the composite coupling agent is a coupling agent KH590 and a silane coupling agent in a weight ratio of 1: 1.5 are compounded.
Example 3
A special modified material for a paint bucket comprises polypropylene, an antibacterial mildew preventive, modified attapulgite, a dispersant ethylene bis stearamide, a coupling agent KH-570 and an antioxidant 1010;
the antibacterial mildew preventive comprises 100 parts by weight of polypropylene, 0.3 part by weight of antibacterial mildew preventive, 1.5 parts by weight of modified attapulgite, 0.3 part by weight of dispersant ethylene bis stearamide, 0.3 part by weight of coupling agent KH-570 and 0.5 part by weight of antioxidant 1010;
the polypropylene is copolymerized polypropylene, the melt index of the polypropylene is 1.2g/10min, and the melt index test condition is 190 ℃ and 2.16 kg; the antibacterial mildew preventive is prepared from zinc pyrithione and thiazole antibacterial agents in a weight ratio of 3: 1, mixing;
the preparation method of the modified attapulgite comprises the following steps: heating attapulgite powder at 580 ℃, grinding, refining, adding a composite coupling agent which is 0.04 times of the weight of the attapulgite powder, stirring, heating to 80 ℃, then preserving heat for 2 hours, adding a dispersing agent ethylene bis stearamide which is 0.03 times of the weight of the attapulgite powder, continuing stirring, preserving heat for 30 minutes, and drying the product to obtain the modified attapulgite;
wherein the composite coupling agent is a coupling agent KH590 and a silane coupling agent in a weight ratio of 1: 1.6 are compounded.
Example 4
A special modified material for a paint bucket comprises polypropylene, an antibacterial mildew preventive, modified attapulgite, a dispersant ethylene bis stearamide, a coupling agent KH-570 and an antioxidant 1010;
the antibacterial mildew preventive comprises 100 parts by weight of polypropylene, 1.5 parts by weight of antibacterial mildew preventive, 7.5 parts by weight of modified attapulgite, 0.8 part by weight of dispersant ethylene bis stearamide, 0.8 part by weight of coupling agent KH-570 and 1 part by weight of antioxidant 1010;
the polypropylene is copolymerized polypropylene, the melt index of the polypropylene is 1.2g/10min, and the melt index test condition is 190 ℃ and 2.16 kg; the antibacterial mildew preventive is prepared from zinc pyrithione and thiazole antibacterial agents in a weight ratio of 3: 1, mixing;
the preparation method of the modified attapulgite comprises the following steps: heating attapulgite powder at 580 ℃, grinding, refining, adding a composite coupling agent which is 0.04 times of the weight of the attapulgite powder, stirring, heating to 80 ℃, then preserving heat for 2 hours, adding a dispersing agent ethylene bis stearamide which is 0.03 times of the weight of the attapulgite powder, continuing stirring, preserving heat for 30 minutes, and drying the product to obtain the modified attapulgite;
wherein the composite coupling agent is a coupling agent KH590 and a silane coupling agent in a weight ratio of 1: 1.6 are compounded.
Comparative example 1
The comparative example is basically the same as the modified material special for the coating barrel in example 1, except that the attapulgite is not modified but directly adopted, and the using amount of the attapulgite is the same as that of the modified attapulgite in example 1.
Comparative example 2
The comparative example is basically the same as the special modified material for the coating barrel in the example 1, and the difference is that the preparation method of the modified attapulgite comprises the following steps: heating attapulgite powder at 580 ℃, grinding, refining, adding a coupling agent KH590 in an amount which is 0.04 times of the weight of the attapulgite powder, stirring, heating to 80 ℃, keeping the temperature for 2 hours, adding a dispersant ethylene bis stearamide in an amount which is 0.03 times of the weight of the attapulgite powder, continuously stirring, keeping the temperature for 30 minutes, and drying the product to obtain the modified attapulgite.
The modified materials special for the coating bucket prepared in the examples 1-4 and the comparative examples 1 and 2 are respectively mixed with polypropylene, an antioxidant and a coupling agent, then fed into an extruder for melting and mixing, extruded and cooled and granulated to obtain plastic particles, the plastic particles are put into a blow molding machine for extruding blanks, and then the blanks are put into a blow molding machine die to prepare the coating bucket.
In the raw material composition for preparing the plastic particles, the amount of the special modified material for the coating bucket is 20 parts by weight relative to 100 parts by weight of polypropylene; the antioxidant is obtained by mixing the antioxidant 1010 and the antioxidant 168 according to the weight ratio of 1:2, and the dosage of the antioxidant is 0.1 part by weight; the coupling agent is KH-570, and the dosage of the coupling agent is 0.3 weight part.
Using the plastic granules of examples 1 to 4 and comparative examples 1 and 2, performance tests including tensile strength, bending strength, izod notched impact strength, antibacterial property and antifungal property were respectively performed. Wherein the tensile strength is determined by the method specified in GB/T1040, the bending strength is determined by the method specified in GB/T9341, the notched Izod impact strength is determined by the method specified in GB/T1843, and the antibacterial property and the mildew resistance are both determined by the method specified in GB/T21551.2. The results of the test are summarized in Table 1.
Table 1:
the test data show that the special modified material for the paint bucket has better mildew resistance, and the special modified material does not influence the physical property of the paint bucket.
The foregoing shows and describes the general principles, essential features, and inventive features of this invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. A modified material special for a coating bucket with a mildew-proof function is characterized by comprising polypropylene, an antibacterial mildew-proof agent, modified attapulgite, a dispersing agent, a coupling agent and an antioxidant;
the antibacterial mildew preventive comprises, by weight, 100 parts of polypropylene, 0.3-1.5 parts of antibacterial mildew preventive, 1.5-7.5 parts of modified attapulgite, 0.3-0.8 part of dispersing agent, 0.3-0.8 part of coupling agent and 0.5-1 part of antioxidant, wherein the amount of the antibacterial mildew preventive is 0.3-1.5 parts;
the preparation method of the modified attapulgite comprises the following steps: heating the attapulgite powder at the high temperature of 580-600 ℃, grinding, refining, adding a composite coupling agent, stirring, heating to 80 ℃, keeping the temperature for 2-3h, adding a dispersing agent, continuously stirring, keeping the temperature for 30min, and drying the product to obtain the modified attapulgite;
wherein the composite coupling agent is a coupling agent KH590 and a silane coupling agent in a weight ratio of 1: (1.5-2) are compounded.
2. The modified material special for paint buckets with the mildew-proof function of claim 1, wherein the amount of the antibacterial and mildew-proof agent is 0.6 part by weight, the amount of the modified attapulgite is 3 parts by weight, the amount of the dispersant is 0.5 part by weight, the amount of the coupling agent is 0.7 part by weight, and the amount of the antioxidant is 0.8 part by weight, relative to 100 parts by weight of polypropylene.
3. The special modified material for paint buckets with mildewproof function according to claim 1, wherein the polypropylene is copolymerized polypropylene, the melt index of the copolymerized polypropylene is 0.3-1.5g/10min, and the melt index test condition is 190 ℃ and 2.16 kg.
4. The special modified material for paint bucket with mildew-proof function according to claim 1, wherein the antibacterial and mildew-proof agent is zinc pyrithione and thiazole antibacterial agent in a weight ratio of (2-4): 1 are mixed.
5. The special modified material for the paint bucket with the mildew-proof function of claim 1, wherein the dispersant is one of ethylene bis stearamide, polyethylene wax, stearic acid and white oil;
the coupling agent is one of KH-570, KH550, KH560 and KH 792;
the antioxidant is one of an antioxidant 1010 and an antioxidant 168, or a combination thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911358950.0A CN111117076A (en) | 2019-12-25 | 2019-12-25 | Special modified material with mildew-proof function for coating bucket |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911358950.0A CN111117076A (en) | 2019-12-25 | 2019-12-25 | Special modified material with mildew-proof function for coating bucket |
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| CN111117076A true CN111117076A (en) | 2020-05-08 |
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| CN201911358950.0A Pending CN111117076A (en) | 2019-12-25 | 2019-12-25 | Special modified material with mildew-proof function for coating bucket |
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