CN114181475A - Stable fluorescent whitening agent for PVC and plant fibers and preparation method thereof - Google Patents
Stable fluorescent whitening agent for PVC and plant fibers and preparation method thereof Download PDFInfo
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- CN114181475A CN114181475A CN202111482467.0A CN202111482467A CN114181475A CN 114181475 A CN114181475 A CN 114181475A CN 202111482467 A CN202111482467 A CN 202111482467A CN 114181475 A CN114181475 A CN 114181475A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
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Abstract
The invention discloses a stable fluorescent whitening agent for PVC and plant fibers, which comprises 20-60% of fluorescent whitening agent, 1-4% of dispersing agent, 0.05-0.3% of blue-phase permanent violet RL, 0.1-0.4% of polyethylene glycol, 10-20% of anhydrous sodium sulphate, 2-6% of coupling agent, 1-5% of surfactant, 0.5-2% of ultraviolet absorbent, 0.3-1% of sterilizing agent, 0.04-0.7% of insect repellent, 0.2-3% of initiator, 0.1-0.5% of antifreezing agent, 0.3-1.5% of defoaming agent and the balance of water. The fluorescent whitening agent prepared by the invention has good whitening effect, obviously improves the whiteness of PVC and plant fibers, has good stability, is not easy to discolor, can resist the change of moisture and temperature, is very beneficial to manufacturing flowerpots by the improved PVC and plant fibers, and also has antibacterial and insect-resistant capabilities; the invention discloses a preparation method of a stable fluorescent whitening agent for PVC and plant fibers, which simplifies production steps, is beneficial to improving product quality and increasing production efficiency.
Description
Technical Field
The invention relates to the technical field of whitening agents, in particular to a stable fluorescent whitening agent for PVC and plant fibers and a preparation method thereof.
Background
PVC and plant fiber are important flowerpot manufacturing raw materials, and with the attention of people on indoor landscapes, plant cultivation in families becomes a popular trend at present. The plant decorative plate has the advantages that the plant decorative plate can be decorated indoors, so that the effect of improving attractiveness can be achieved, air can be fresher, and the emotion of people is relieved.
In order to make plants have better decorative effect, the plants are often provided with good-looking flowerpots, so that the requirements on raw materials of the flowerpots are very high. When PVC and plant fiber are used as main materials of flowerpots, whitening agents are often required to be added to improve the surface color of the flowerpots.
However, the existing whitening agent for PVC and plant fibers is often poor in effect and stability, easy to denature under the influence of moisture and temperature, and meanwhile, the finished flowerpot is not good in antibacterial and insect-resistant capabilities, and the final finished product is not good for plant maintenance. In view of this, we propose a stable fluorescent whitening agent for PVC and plant fibers and a method for preparing the same.
Disclosure of Invention
The invention aims to provide a stable fluorescent whitening agent for PVC and plant fibers and a preparation method thereof, which aim to solve the problems in the background art.
The invention provides a technical scheme for realizing the purpose, the invention provides a stable fluorescent whitening agent for PVC and plant fibers, which comprises 20-60% of fluorescent whitening agent, 1-4% of dispersing agent, 0.05-0.3% of blue-phase permanent violet RL, 0.1-0.4% of polyethylene glycol, 10-20% of anhydrous sodium sulphate, 2-6% of coupling agent, 1-5% of surfactant, 0.5-2% of ultraviolet absorbent, 0.3-1% of sterilizing agent, 0.04-0.7% of insect repellent, 0.2-3% of initiator, 0.1-0.5% of antifreezing agent, 0.3-1.5% of defoaming agent and the balance of water.
Preferably, the fluorescent whitening agent comprises one or more of fluorescent whitening agent 33, fluorescent whitening agent 367, fluorescent whitening agent DMS, fluorescent whitening agent WS, fluorescent whitening agent VBL, and fluorescent whitening agent CBS-X.
Preferably, the coupling agent is a silane coupling agent, preferably a silane coupling agent KH570, and the dispersing agent is a liquid polyether polyol with the molecular weight of 1000-2000-.
Preferably, the surfactant is an anionic surfactant, and the ultraviolet absorber is an organic ultraviolet absorber, preferably a benzotriazole-based absorber.
Preferably, the sterilizing agent adopts one of 5-chloro-2-methyl-4-isothiazolin-3-ketone or 2-methyl-4-isothiazolin-3-ketone.
Preferably, the antifreeze is one or a mixture of more of 1, 2-propylene glycol, ethylene glycol or glycerol.
A process for the preparation of a stable fluorescent whitening agent for PVC and vegetable fibres, comprising the steps of:
s1: adding a fluorescent whitening agent and blue-phase permanent violet RL into water to form a solution, adding a dispersing agent and a coupling agent for treatment, and stirring for 1-3 hours to obtain a treated solution;
s2: adding polyethylene glycol, anhydrous sodium sulphate and surfactant into the treated solution, and stirring for 0.5-2 hours;
s3: and (3) adding an ultraviolet absorbent, a sterilizing agent, an insect-resist agent, an initiator, an antifreezing agent, a defoaming agent and sufficient water into the solution obtained in the step (S2), heating to 30-40 ℃, and stirring for 0.5-3 hours to obtain the fluorescent whitening agent.
Compared with the prior art, the invention has the beneficial effects that:
1. the fluorescent whitening agent prepared by the invention has good whitening effect, obviously improves the whiteness of PVC and plant fibers, has good stability, is not easy to discolor, can resist the change of moisture and temperature, is very beneficial to manufacturing flowerpots by the improved PVC and plant fibers, and also has antibacterial and insect-resistant capabilities;
2. the invention discloses a preparation method of a stable fluorescent whitening agent for PVC and plant fibers, which simplifies production steps, is beneficial to improving product quality and increasing production efficiency.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and 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.
The invention provides a technical scheme that: the technical solution of the present patent will be described in further detail with reference to the following embodiments.
A stable fluorescent whitening agent for PVC and plant fiber, 20-60% of fluorescent whitening agent, 1-4% of dispersing agent, 0.05-0.3% of blue-phase permanent violet RL, 0.1-0.4% of polyethylene glycol, 10-20% of anhydrous sodium sulphate, 2-6% of coupling agent, 1-5% of surfactant, 0.5-2% of ultraviolet absorbent, 0.3-1% of sterilizing agent, 0.04-0.7% of insect-resist agent, 0.2-3% of initiator, 0.1-0.5% of antifreezing agent, 0.3-1.5% of defoaming agent and the balance of water.
A process for the preparation of a stable fluorescent whitening agent for PVC and vegetable fibres, comprising the steps of:
s1: adding a fluorescent whitening agent and blue-phase permanent violet RL into water to form a solution, adding a dispersing agent and a coupling agent for treatment, and stirring for 1-3 hours to obtain a treated solution;
s2: adding polyethylene glycol, anhydrous sodium sulphate and surfactant into the treated solution, and stirring for 0.5-2 hours;
s3: and (3) adding an ultraviolet absorbent, a sterilizing agent, an insect-resist agent, an initiator, an antifreezing agent, a defoaming agent and sufficient water into the solution obtained in the step (S2), heating to 30-40 ℃, and stirring for 0.5-3 hours to obtain the fluorescent whitening agent.
Detailed description of the preferred embodiment 1
A stable fluorescent whitening agent for PVC and plant fibers comprises 20-60% of fluorescent whitening agent, 2% of dispersing agent, 0.2% of blue-phase permanent violet RL, 0.3% of polyethylene glycol, 15% of anhydrous sodium sulphate, 4% of coupling agent, 5% of surfactant, 0.8% of ultraviolet absorbent, 0.6% of sterilizing agent, 0.2% of insect repellent, 0.25% of initiator, 0.5% of antifreezing agent, 1.5% of defoaming agent and the balance of water.
A process for the preparation of a stable fluorescent whitening agent for PVC and vegetable fibres, comprising the steps of:
s1: adding a fluorescent whitening agent and blue-phase permanent violet RL into water to form a solution, adding a dispersing agent and a coupling agent for treatment, and stirring for 2 hours to obtain a treated solution;
s2: adding polyethylene glycol, anhydrous sodium sulphate and a surfactant into the treated solution, and stirring for 1 hour;
s3: and (3) adding an ultraviolet absorber, a sterilizing agent, an insect-resist agent, an initiator, an antifreezing agent, a defoaming agent and sufficient water into the solution obtained in the step (S2), heating to 30 ℃, and stirring for 1 hour to obtain the fluorescent whitening agent.
Specific example 2
A stable fluorescent whitening agent for PVC and plant fibers comprises 50% of fluorescent whitening agent, 3% of dispersing agent, 0.3% of blue-phase permanent violet RL, 0.3% of polyethylene glycol, 10% of anhydrous sodium sulphate, 4% of coupling agent, 3% of surfactant, 1% of ultraviolet absorbent, 0.5% of sterilizing agent, 0.4% of insect-resist agent, 2% of initiator, 0.4% of antifreezing agent, 1% of defoaming agent and the balance of water.
A process for the preparation of a stable fluorescent whitening agent for PVC and vegetable fibres, comprising the steps of:
s1: adding a fluorescent whitening agent and blue-phase permanent violet RL into water to form a solution, adding a dispersing agent and a coupling agent for treatment, and stirring for 2 hours to obtain a treated solution;
s2: adding polyethylene glycol, anhydrous sodium sulphate and a surfactant into the treated solution, and stirring for 1 hour;
s3: and (3) adding an ultraviolet absorber, a sterilizing agent, an insect-resist agent, an initiator, an antifreezing agent, a defoaming agent and sufficient water into the solution obtained in the step (S2), heating to 35 ℃, and stirring for 2 hours to obtain the fluorescent whitening agent.
Specific example 3
A stable fluorescent whitening agent for PVC and plant fibers comprises 60% of fluorescent whitening agent, 4% of dispersing agent, 0.2% of blue-phase permanent violet RL, 0.3% of polyethylene glycol, 12% of anhydrous sodium sulphate, 6% of coupling agent, 5% of surfactant, 2% of ultraviolet absorbent, 1% of sterilizing agent, 0.7% of insect-resist agent, 2% of initiator, 0.5% of antifreezing agent, 1.2% of defoaming agent and the balance of water.
A process for the preparation of a stable fluorescent whitening agent for PVC and vegetable fibres, comprising the steps of:
s1: adding a fluorescent whitening agent and blue-phase permanent violet RL into water to form a solution, adding a dispersing agent and a coupling agent for treatment, and stirring for 3 hours to obtain a treated solution;
s2: adding polyethylene glycol, anhydrous sodium sulphate and a surfactant into the treated solution, and stirring for 2 hours;
s3: and (3) adding an ultraviolet absorber, a sterilizing agent, an insect-resist agent, an initiator, an antifreezing agent, a defoaming agent and sufficient water into the solution obtained in the step (S2), heating to 40 ℃, and stirring for 3 hours to obtain the fluorescent whitening agent.
The properties of the optical brighteners prepared in the above three examples are shown in table 1:
| item | Example 1 | Example 2 | Example 3 |
| Whiteness degree | 96.4 | 97.2 | 98.3 |
| Fluorescent brightening of objects | 15.5 | 16.3 | 16.7 |
| Stability of | Stabilization | Stabilization | Stabilization |
| Ultraviolet absorptivity | 92 | 91 | 94 |
| Cold resistance | Good taste | Good taste | Good taste |
TABLE 1
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A stable fluorescent whitening agent for PVC and plant fibers, characterized in that: 20-60% of fluorescent whitening agent, 1-4% of dispersing agent, 0.05-0.3% of blue-phase permanent violet RL, 0.1-0.4% of polyethylene glycol, 10-20% of anhydrous sodium sulphate, 2-6% of coupling agent, 1-5% of surfactant, 0.5-2% of ultraviolet absorbent, 0.3-1% of sterilizing agent, 0.04-0.7% of insect repellent agent, 0.2-3% of initiator, 0.1-0.5% of antifreezing agent, 0.3-1.5% of defoaming agent and the balance of water.
2. A stable fluorescent whitening agent for PVC and vegetable fibres, according to claim 1, characterized in that: the fluorescent whitening agent comprises one or more of fluorescent whitening agent 33, fluorescent whitening agent 367, fluorescent whitening agent DMS, fluorescent whitening agent WS, fluorescent whitening agent VBL and fluorescent whitening agent CBS-X.
3. A stable fluorescent whitening agent for PVC and vegetable fibres, according to claim 2, characterized in that: the coupling agent is a silane coupling agent, preferably a silane coupling agent KH570, and the dispersing agent is liquid polyether polyol with the molecular weight of 1000-2000-.
4. A stable fluorescent whitening agent for PVC and vegetable fibres, according to claim 3, characterized in that: the surfactant is an anionic surfactant, and the ultraviolet absorbent is an organic ultraviolet absorbent, preferably a benzotriazole absorbent.
5. A stable fluorescent whitening agent for PVC and vegetable fibres, according to claim 4, characterized in that: the sterilizing agent adopts one of 5-chloro-2-methyl-4-isothiazoline-3-ketone or 2-methyl-4-isothiazoline-3-ketone.
6. A stable fluorescent whitening agent for PVC and vegetable fibres, according to claim 5, characterized in that: the antifreeze agent is one or a mixture of more of 1, 2-propylene glycol, ethylene glycol or glycerol.
7. Process for the preparation of stable fluorescent whitening agents for PVC and vegetable fibres, according to claims 1 to 6, characterized in that: the method comprises the following steps:
s1: adding a fluorescent whitening agent and blue-phase permanent violet RL into water to form a solution, adding a dispersing agent and a coupling agent for treatment, and stirring for 1-3 hours to obtain a treated solution;
s2: adding polyethylene glycol, anhydrous sodium sulphate and surfactant into the treated solution, and stirring for 0.5-2 hours;
s3: and (3) adding an ultraviolet absorbent, a sterilizing agent, an insect-resist agent, an initiator, an antifreezing agent, a defoaming agent and sufficient water into the solution obtained in the step (S2), heating to 30-40 ℃, and stirring for 0.5-3 hours to obtain the fluorescent whitening agent.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111482467.0A CN114181475A (en) | 2021-12-07 | 2021-12-07 | Stable fluorescent whitening agent for PVC and plant fibers and preparation method thereof |
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| CN202111482467.0A CN114181475A (en) | 2021-12-07 | 2021-12-07 | Stable fluorescent whitening agent for PVC and plant fibers and preparation method thereof |
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| CN114181475A true CN114181475A (en) | 2022-03-15 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5976410A (en) * | 1996-10-10 | 1999-11-02 | Ciba Specialty Chemicals Corporation | Dispersions of fluorescent whitening agents |
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- 2021-12-07 CN CN202111482467.0A patent/CN114181475A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5976410A (en) * | 1996-10-10 | 1999-11-02 | Ciba Specialty Chemicals Corporation | Dispersions of fluorescent whitening agents |
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