CN114891284A - Fragrant butyronitrile gloves and preparation method thereof - Google Patents
Fragrant butyronitrile gloves and preparation method thereof Download PDFInfo
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- CN114891284A CN114891284A CN202210635718.2A CN202210635718A CN114891284A CN 114891284 A CN114891284 A CN 114891284A CN 202210635718 A CN202210635718 A CN 202210635718A CN 114891284 A CN114891284 A CN 114891284A
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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
- C08K9/10—Encapsulated ingredients
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
- B01J13/02—Making microcapsules or microballoons
- B01J13/06—Making microcapsules or microballoons by phase separation
- B01J13/14—Polymerisation; cross-linking
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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
- C08K5/01—Hydrocarbons
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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
- C08K5/04—Oxygen-containing compounds
- C08K5/05—Alcohols; Metal alcoholates
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- Chemical Kinetics & Catalysis (AREA)
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- Gloves (AREA)
Abstract
The invention provides a fragrant butyronitrile glove and a preparation method thereof, and relates to the technical field of butyronitrile glove processing. The fragrant butyronitrile gloves are mainly prepared from butyronitrile latex, nano zinc oxide, sulfur powder, titanium dioxide, an accelerator, an anti-aging agent, liquid potassium and aromatic microcapsules, and the essence materials are embedded by chitosan combined with methyl methacrylate and trimethylolpropane triacrylate, so that the fragrance durability and stability of the whole material are improved. The invention overcomes the defects of the prior art, the prepared fragrant butyronitrile gloves have lasting fragrance, can cover the original rubber smell of the gloves, the fragrance-retaining time is more than 1 year, and the fragrant butyronitrile gloves are nontoxic, have simple preparation process, can be industrially produced, and have wide market prospect in the fields of cosmetology, hairdressing, dentistry and the like.
Description
Technical Field
The invention relates to the technical field of butyronitrile glove processing, in particular to a fragrant butyronitrile glove and a preparation method thereof.
Background
In recent years, butyronitrile gloves, as a protective article with wide application, have the characteristics of no protein, no anaphylactic reaction to human skin, high strength, good extensibility and oil resistance, soft hand feeling, no toxicity, no harm, chemical resistance and the like, and have wide application prospects in the fields of electronics, chemical engineering, food, medical protection and the like.
The preparation of the nitrile gloves mainly comprises two processes: firstly, preparing butyronitrile latex, and secondly, carrying out dipping production on a production line. At present, the production process of the butyronitrile gloves is mature, and the butyronitrile gloves with different colors, different sizes, different gram weights, different physical properties and the like are developed. With the development and social demands, nitrile gloves with different characteristics are also developed in succession. Chinese patent CN205813654U discloses a fruit odor type butyronitrile glove, which is prepared by arranging a skin moistening layer at the innermost part of a butyronitrile glove body and coating a spice layer outside the skin moistening layer, wherein the fragrance of the spice is poor in durability, and the fragrance components are arranged outside the glove material, so that the whole preparation process is complex, and the production cost is increased. And although various butyronitrile gloves with special performance are developed in the market at present, the development of the fragrant butyronitrile gloves is still less due to the problems that the fragrance retention time of the glove fragrance is short in the using process and the like.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the fragrant butyronitrile gloves and the preparation method thereof, the fragrant butyronitrile gloves are integrally prepared by dispersing and mixing the fragrant microcapsules and the butyronitrile components, and the fragrance retention property and the service performance of the gloves are effectively improved.
In order to achieve the above purpose, the technical scheme of the invention is realized by the following technical scheme:
the fragrant butyronitrile gloves are prepared from the following raw materials in parts by weight: 80-100 parts of butyronitrile latex, 1-2.5 parts of nano zinc oxide, 0.5-1.5 parts of sulfur powder, 1.5-2.5 parts of titanium dioxide, 0.2-0.8 part of accelerator BZ, 0.1-0.5 part of accelerator EZ, 0.1-0.5 part of anti-aging agent, 1-2 parts of liquid potassium and 0.08-0.15 part of aromatic microcapsule;
preferably, the preparation method of the aromatic microcapsule comprises the following steps:
dissolving chitosan in dilute acetic acid, adding hexadecyl trimethyl ammonium bromide, stirring and dispersing to obtain a mixed solution for later use;
uniformly stirring essence, methyl methacrylate, polysorbate, trimethylolpropane triacrylate and an initiator, adding the mixture into the mixture, and stirring at a high speed to obtain an emulsion for later use;
thirdly, heating and polymerizing the emulsion, and then centrifugally washing and drying to obtain the fragrant microcapsule.
Preferably, the concentration of the dilute acetic acid in the step (i) is 3%.
Preferably, in the preparation process of the aromatic microcapsule, the mass ratio of the essence to the methyl methacrylate to the polysorbate to the trimethylolpropane triacrylate to the initiator to the chitosan to the hexadecyltrimethylammonium bromide is 3: 1: 0.5: 1: 0.4: 1: 0.5.
Preferably, the rotation speed of the high-speed stirring in the second step is 3500r/min, and the stirring time is 30 min.
Preferably, the initiator in the step (c) is azobisisobutyronitrile.
Preferably, the heating polymerization in the step (c) is carried out by heating to 75 ℃ under the protection of nitrogen, and reacting for 10-12 h.
The preparation method of the fragrant butyronitrile gloves comprises the following steps:
(1) mixing raw materials: mixing nano zinc oxide, sulfur powder, titanium dioxide, a promoter BZ, a promoter EZ and an anti-aging agent, adding deionized water, grinding, sieving with a 80-mesh sieve, adding aromatic microcapsules, stirring at high speed, and dispersing to obtain mixed slurry for later use;
(2) and (3) matching and stirring: adding the mixed slurry and the liquid potassium into the butyronitrile latex, uniformly stirring, heating and standing, continuing stirring, and standing at normal temperature to obtain mixed latex for later use;
(3) forming the gloves: and (3) soaking the glove mold into the mixed latex, taking out, baking, drying and demolding to obtain the fragrant butyronitrile glove.
Preferably, the rotation speed of the high-speed stirring and dispersing in the step (1) is 2800-3500r/min, and the dispersing time is 25-30 min.
Preferably, the stirring and standing manner in the step (2) is to firstly stir at a rotation speed of 1200-1600r/min for 30min, then raise the temperature to 65 ℃ and stand for 1-2h, then continue stirring at a rotation speed of 2200-2600r/min for 30min, and then stand at normal temperature for 10-12 h.
Preferably, the temperature for baking and drying in the step (3) is 100-.
The invention provides a fragrant butyronitrile glove and a preparation method thereof, and compared with the prior art, the fragrant butyronitrile glove has the advantages that:
(1) according to the invention, chitosan, methyl methacrylate and trimethylolpropane triacrylate are compounded and subjected to in-situ polymerization to form the microcapsules, so that the coating rate is effectively improved, the microcapsules are conveniently dispersed in butyronitrile latex in the follow-up process, the stability of the product performance is improved, and the fragrance of gloves can be maintained for more than 1 year.
(2) According to the invention, through the modes of normal-temperature stirring, heating standing, heating stirring and normal-temperature standing, the aromatic components, the auxiliary agents and the butyronitrile latex are fully and uniformly mixed, and the mixed material is directly obtained to prepare the glove, so that an aromatic layer is not required to be continuously added on the outer layer of the glove, the basic performance of the glove is ensured, the processes are effectively reduced, and the convenience of production is improved.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
preparation of fragrant microcapsules (lemon flavor as an example):
(1) dissolving 10g of chitosan in a 3% dilute acetic acid solution, adding 5g of hexadecyl trimethyl ammonium bromide, stirring and dispersing to obtain a mixed solution for later use;
(2) mixing 30g of lemon essence with 10g of methyl methacrylate, 5g of polysorbate, 10g of trimethylolpropane triacrylate and 4g of azobisisobutyronitrile, stirring uniformly, adding into the mixed solution, and stirring at a high speed of 3500r/min for 30min to obtain an emulsion for later use;
(3) and (3) introducing nitrogen into the emulsion for protection, heating to 75 ℃, carrying out heating polymerization for 10-12h until the reaction is finished, and then centrifuging, washing and drying to obtain the aromatic microcapsule.
Example 2:
preparation of fragrant microcapsules (lemon flavor as an example):
(1) adding 5g of hexadecyl trimethyl ammonium bromide into clear water, stirring and dispersing to obtain a mixed solution for later use;
(2) mixing 30g of lemon essence with 10g of methyl methacrylate, 5g of polysorbate, 10g of trimethylolpropane triacrylate and 4g of azobisisobutyronitrile, stirring uniformly, adding into the mixed solution, and stirring at a high speed of 3500r/min for 30min to obtain an emulsion for later use;
(3) and (3) introducing nitrogen into the emulsion for protection, heating to 75 ℃, carrying out heating polymerization for 10-12h until the reaction is finished, and then centrifuging, washing and drying to obtain the aromatic microcapsule.
Example 3
Preparation of fragrant microcapsules (lemon flavor as an example):
(1) dissolving 10g of chitosan in a 3% dilute acetic acid solution, adding 5g of hexadecyl trimethyl ammonium bromide, stirring and dispersing to obtain a mixed solution for later use;
(2) mixing 30g of lemon essence with 10g of methyl methacrylate, 5g of polysorbate and 4g of azobisisobutyronitrile, stirring uniformly, adding into the mixed solution, and stirring at a high speed of 3500r/min for 30min to obtain an emulsion for later use;
(3) and (3) introducing nitrogen into the emulsion for protection, heating to 75 ℃, carrying out heating polymerization for 10-12h until the reaction is finished, and then centrifuging, washing and drying to obtain the aromatic microcapsule.
Example 4:
preparation of the fragrant butyronitrile gloves:
(1) mixing 2g of nano zinc oxide, 1g of sulfur powder, 2g of titanium dioxide, 0.5g of accelerator BZ, 0.3g of accelerator EZ and 0.3g of anti-aging agent, adding deionized water, grinding and sieving by a 80-mesh sieve, then adding 0.1g of the aromatic microcapsule in the embodiment 1, and stirring and dispersing at a high speed of 3000r/min for 25min to obtain mixed slurry for later use;
(2) and (3) matching and stirring: adding the mixed slurry and 1.5g of liquid potassium into 90g of nitrile-butadiene latex, stirring at the rotating speed of 1400r/min for 30min, heating to 65 ℃, standing for 1.5h, continuing stirring at the rotating speed of 2400r/min for 30min, and standing at normal temperature for 11h to obtain mixed latex for later use;
(3) and (3) soaking the glove mold into the mixed latex, taking out the glove mold, baking and drying the glove mold at the temperature of 110 ℃ for 25min, and demolding to obtain the fragrant butyronitrile gloves.
Example 5:
preparing the butyronitrile gloves:
(1) mixing 1-2.5g of nano zinc oxide, 0.5-1.5g of sulfur powder, 1.5-2.5g of titanium dioxide, 0.2-0.8g of accelerator BZ, 0.1-0.5g of accelerator EZ and 0.1-0.5g of anti-aging agent, adding deionized water, grinding, sieving with a 80-mesh sieve, and stirring and dispersing at a high speed of 2800 plus 3500r/min for 25-30min to obtain mixed slurry for later use;
(2) and (3) matching and stirring: adding the mixed slurry and 1-2g of liquid potassium into 80-100g of nitrile latex, stirring for 30min at the rotation speed of 1200-1600r/min, heating to 65 ℃, standing for 1-2h, continuing stirring for 30min at the rotation speed of 2200-2600r/min, and standing for 10-12h at normal temperature to obtain mixed latex for later use;
(3) and (3) soaking the glove mold into the mixed latex, taking out the glove mold, baking and drying the glove mold at the temperature of 100-110 ℃ for 25-35min, and demolding to obtain the fragrant butyronitrile glove.
And (3) detection:
1. the encapsulation efficiency of the fragrance microcapsules prepared in examples 1 to 3 was measured:
weighing 1g of each group of essence microcapsules, dissolving the essence microcapsules in 10mL of ethanol, centrifuging the solution at 8000r/min for 30min, performing suction filtration by using a 0.2-micron filter membrane to obtain a supernatant, measuring the absorbance of lemon essence in the supernatant at 240nm by using an ultraviolet visible spectrophotometer, and calculating the mass W of the lemon essence on the surfaces of the essence microcapsules according to an ultraviolet standard curve of the lemon essence 1 。
And (3) measuring the total mass of the lemon essence in the essence microcapsules: weighing 1g of essence microcapsule sample, dissolving in 10mL of ethanol, performing ultrasonic treatment at 30 ℃ and 600W for 1h to break the wall material of the essence microcapsule, measuring the absorbance of the lemon essence at 240nm by using an ultraviolet visible spectrophotometer, and calculating the total mass W of the lemon essence embedded in and on the surface of the essence microcapsule 0 。
The embedding rate is (W) 0 -W 1 )/W 0 The calculation results are shown in table 1 below:
TABLE 1
| Group of | Example 1 | Example 2 | Example 3 |
| The embedding rate% | 81.2％ | 74.6％ | 65.3％ |
As can be seen from the above table, the fragrant microcapsule prepared by the present invention has excellent embedding effect on the essence components.
2. The mechanical properties of the gloves prepared in examples 4 to 5 were measured, and the specific results are shown in table 2 below:
TABLE 2
| Group of | Tensile strength (Mpa) | Elongation (%) |
| Example 4 | 22.6 | 614.8 |
| Example 5 | 22.5 | 615.6 |
As can be seen from the above table, the aromatic microcapsules are directly added to the glove without influencing the performance of the glove basically, i.e. the glove prepared by the invention has wide market prospect in the fields of cosmetology, hairdressing, dentistry and the like.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The fragrant butyronitrile gloves are characterized by being prepared from the following raw materials in parts by weight: 80-100 parts of butyronitrile latex, 1-2.5 parts of nano zinc oxide, 0.5-1.5 parts of sulfur powder, 1.5-2.5 parts of titanium dioxide, 0.2-0.8 part of accelerator BZ, 0.1-0.5 part of accelerator EZ, 0.1-0.5 part of anti-aging agent, 1-2 parts of liquid potassium and 0.08-0.15 part of aromatic microcapsule;
the preparation method of the aromatic microcapsule comprises the following steps:
dissolving chitosan in dilute acetic acid, adding hexadecyl trimethyl ammonium bromide, stirring and dispersing to obtain a mixed solution for later use;
uniformly stirring essence, methyl methacrylate, polysorbate, trimethylolpropane triacrylate and an initiator, adding the mixture into the mixture, and stirring at a high speed to obtain an emulsion for later use;
thirdly, heating and polymerizing the emulsion, and then centrifugally washing and drying to obtain the fragrant microcapsule.
2. A scented nitrile glove according to claim 1 wherein: the concentration of the dilute acetic acid in the step (i) is 3%.
3. A scented nitrile glove according to claim 1 wherein: in the preparation process of the aromatic microcapsule, the mass ratio of the essence to the methyl methacrylate to the polysorbate to the trimethylolpropane triacrylate to the initiator to the chitosan to the hexadecyl trimethyl ammonium bromide is 3: 1: 0.5: 1: 0.4: 1: 0.5.
4. A scented nitrile glove according to claim 1 wherein: and the rotating speed of the high-speed stirring in the second step is 3500r/min, and the stirring time is 30 min.
5. A scented nitrile glove according to claim 1 wherein: in the step (II), the initiator is azobisisobutyronitrile.
6. A scented nitrile glove according to claim 1 wherein: and the heating polymerization in the step III is carried out in a mode of heating to 75 ℃ under the protection of nitrogen, and the reaction lasts for 10-12 h.
7. A method of making a scented nitrile glove according to claim 1, comprising the steps of:
(1) mixing raw materials: mixing nano zinc oxide, sulfur powder, titanium dioxide, a promoter BZ, a promoter EZ and an anti-aging agent, adding deionized water, grinding, sieving with a 80-mesh sieve, adding aromatic microcapsules, stirring at high speed, and dispersing to obtain mixed slurry for later use;
(2) and (3) matching and stirring: adding the mixed slurry and the liquid potassium into the butyronitrile latex, uniformly stirring, heating and standing, continuing stirring, and standing at normal temperature to obtain mixed latex for later use;
(3) forming the gloves: and soaking the glove mold into the mixed latex, taking out, baking, drying and demolding to obtain the fragrant butyronitrile glove.
8. The method of making a scented nitrile glove according to claim 7, wherein: the rotation speed of the high-speed stirring and dispersing in the step (1) is 2800-.
9. The method of making a scented nitrile glove according to claim 7, wherein: the stirring and standing mode in the step (2) is that stirring is carried out at the rotation speed of 1200-1600r/min for 30min, then the temperature is raised to 65 ℃, standing is carried out for 1-2h, then stirring is carried out continuously at the rotation speed of 2200-2600r/min for 30min, and then standing is carried out at normal temperature for 10-12 h.
10. The method of making a scented nitrile glove according to claim 7, wherein: the temperature for baking and drying in the step (3) is 100-110 ℃, and the drying time is 25-35 min.
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| CN202210635718.2A CN114891284A (en) | 2022-06-06 | 2022-06-06 | Fragrant butyronitrile gloves and preparation method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107383490A (en) * | 2017-09-20 | 2017-11-24 | 安徽微威环保科技有限公司 | A kind of butadiene acrylonitrile rubber medical gloves |
| CN111359552A (en) * | 2020-03-02 | 2020-07-03 | 浙江理工大学 | Self-crosslinking essential oil microcapsule and preparation method thereof |
| CN113201176A (en) * | 2021-06-01 | 2021-08-03 | 安徽英科医疗用品有限公司 | Nitrile gloves with ageing resistance and preparation method thereof |
| CN114015087A (en) * | 2021-11-16 | 2022-02-08 | 安徽和佳医疗用品科技有限公司 | High-elasticity rubber and plastic gloves containing magnetic microcapsules and preparation method thereof |
| CN114573887A (en) * | 2022-02-22 | 2022-06-03 | 河北鸿泽塑胶科技有限公司 | Preparation process of soft butyronitrile gloves |
-
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- 2022-06-06 CN CN202210635718.2A patent/CN114891284A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107383490A (en) * | 2017-09-20 | 2017-11-24 | 安徽微威环保科技有限公司 | A kind of butadiene acrylonitrile rubber medical gloves |
| CN111359552A (en) * | 2020-03-02 | 2020-07-03 | 浙江理工大学 | Self-crosslinking essential oil microcapsule and preparation method thereof |
| CN113201176A (en) * | 2021-06-01 | 2021-08-03 | 安徽英科医疗用品有限公司 | Nitrile gloves with ageing resistance and preparation method thereof |
| CN114015087A (en) * | 2021-11-16 | 2022-02-08 | 安徽和佳医疗用品科技有限公司 | High-elasticity rubber and plastic gloves containing magnetic microcapsules and preparation method thereof |
| CN114573887A (en) * | 2022-02-22 | 2022-06-03 | 河北鸿泽塑胶科技有限公司 | Preparation process of soft butyronitrile gloves |
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