CN108978224B - Preparation method and finishing method of finishing agent for endowing textiles with multiple functions - Google Patents
Preparation method and finishing method of finishing agent for endowing textiles with multiple functions Download PDFInfo
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- CN108978224B CN108978224B CN201810704638.1A CN201810704638A CN108978224B CN 108978224 B CN108978224 B CN 108978224B CN 201810704638 A CN201810704638 A CN 201810704638A CN 108978224 B CN108978224 B CN 108978224B
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/55—Epoxy resins
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/68—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with phosphorus or compounds thereof, e.g. with chlorophosphonic acid or salts thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/68—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with phosphorus or compounds thereof, e.g. with chlorophosphonic acid or salts thereof
- D06M11/70—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with phosphorus or compounds thereof, e.g. with chlorophosphonic acid or salts thereof with oxides of phosphorus; with hypophosphorous, phosphorous or phosphoric acids or their salts
- D06M11/71—Salts of phosphoric acids
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/77—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof
- D06M11/79—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof with silicon dioxide, silicic acids or their salts
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/165—Ethers
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
- D06M13/395—Isocyanates
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/39—Aldehyde resins; Ketone resins; Polyacetals
- D06M15/41—Phenol-aldehyde or phenol-ketone resins
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/04—Vegetal fibres
- D06M2101/06—Vegetal fibres cellulosic
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/30—Flame or heat resistance, fire retardancy properties
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Fireproofing Substances (AREA)
Abstract
The invention discloses a preparation method and a finishing method of a finishing agent for endowing textiles with multiple functions, wherein the finishing agent comprises, by mass, 20-22 parts of epoxy resin, 7-14 parts of a mixture of phosphorus pentoxide and ammonium dihydrogen phosphate, 1-2 parts of a wetting agent and 1.5-3 parts of a curing agent; and adding 2-4 parts of silicon dioxide and 1-2 parts of a cross-linking agent to obtain the finishing agent. The flame retardant prepared by the invention not only has excellent flame retardant property, but also has high hydrophobicity and corrosion resistance, improves the mechanical property of the finished flame retardant material, and is different from most of flame retardant materials prepared by the prior art in that only has flame retardant property. The flame retardant prepared by the invention has excellent flame retardant performance, and the flame retardant effect can reach V-0 level. After the fiber material is treated by the flame retardant prepared by the invention, the limiting oxygen index is improved from 19% to 32%, and the static water absorption time is as high as more than 3 h.
Description
Technical Field
The invention belongs to the technical field of finishing agents, and particularly relates to a preparation method and a finishing method of a finishing agent for endowing textiles with multiple functions.
Background
In recent years, due to the increasing abundance of textile products, more and more fires are caused by the combustion of textiles, and the flame retardant modification of the textiles is imperative, which also meets the requirements of the modern times on multifunctional textiles.
The technology of flame-retardant finishing of textiles is improved along with the improvement of scientific technology. The flame retardant is also called as a fire retardant, and the flame retardant is widely known at present, and can be divided into a halogen flame retardant, a phosphorus flame retardant, a nitrogen flame retardant, a silicon flame retardant or a synergistic flame retardant compounded by a plurality of flame retardants according to the contained flame retardant elements. However, as the requirement of people for environmental protection is higher and higher, the application of the flame retardant which generates carcinogens during combustion is limited, and the phosphorus flame retardant is a widely used halogen-free flame retardant which can catalyze polymers to remove water molecules to form carbon, and further contributes to forming a compact carbon layer on the surface of the polymers so as to play a role in insulating heat and isolating contact between combustible gas and oxygen, so that the phosphorus flame retardant is the main force for preparing flame retardant products at present, however, how to prepare the textile finishing agent which has flame retardant durability, high hydrophobicity, mechanical property and corrosion resistance at the same time is still a technical problem to be solved.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made in view of the above-mentioned technical drawbacks.
Accordingly, in one aspect of the present invention, the present invention overcomes the deficiencies of the prior art by providing a method for making a finishing agent that imparts multiple functions to a textile.
In order to solve the technical problems, the invention provides the following technical scheme: a process for preparing a finishing agent which imparts versatility to textiles, comprising,
in parts by mass, 20-22 parts of epoxy resin is added with 7-14 parts of a mixture of phosphorus pentoxide and ammonium dihydrogen phosphate, 1-2 parts of a wetting agent and 1.5-3 parts of a curing agent; and
and adding 2-4 parts of silicon dioxide and 1-2 parts of a cross-linking agent to obtain the finishing agent.
As a preferred embodiment of the preparation method of the finishing agent for endowing the textile with multiple functions, the invention comprises the following steps: the phosphorus pentoxide content is 3-7 parts by mass, and the ammonium dihydrogen phosphate content is 3-6 parts by mass.
As a preferred embodiment of the preparation method of the finishing agent for endowing the textile with multiple functions, the invention comprises the following steps: the wetting agent is dipropylene glycol.
As a preferred embodiment of the preparation method of the finishing agent for endowing the textile with multiple functions, the invention comprises the following steps: the curing agent comprises phenolic resin, silicone resin and isocyanate, wherein the phenolic resin accounts for 0.5-1 part by mass, the silicone resin accounts for 0.5-1 part by mass, and the isocyanate accounts for 0.5-1 part by mass.
As a preferred embodiment of the preparation method of the finishing agent for endowing the textile with multiple functions, the invention comprises the following steps: the phenolic resin: silicone resin: isocyanate 1: 1: 1.
as a preferred embodiment of the preparation method of the finishing agent for endowing the textile with multiple functions, the invention comprises the following steps: the cross-linking agent is N-methylol acrylamide.
As a preferred embodiment of the preparation method of the finishing agent for endowing the textile with multiple functions, the invention comprises the following steps: and 2-4 parts of silicon dioxide is added, wherein the silicon dioxide comprises 1-2 parts of 100nm silicon dioxide and 1-2 parts of 50nm silicon dioxide.
As a preferred embodiment of the preparation method of the finishing agent for endowing the textile with multiple functions, the invention comprises the following steps: the epoxy resin coating comprises, by mass, 20 parts of epoxy resin, 7 parts of phosphorus pentoxide, 6 parts of ammonium dihydrogen phosphate, 1 part of phenolic resin, 1 part of silicone resin, 1 part of isocyanate, 1 part of 100nm silica, 1 part of 50nm silica and 2 parts of N-methylolacrylamide.
As another aspect of the present invention, the present invention overcomes the deficiencies of the prior art by providing a finishing process for a finishing agent that imparts versatility to textiles.
In order to solve the technical problems, the invention provides the following technical scheme: the finishing method of the finishing agent for endowing the textile with multiple functions comprises the steps of soaking the textile in the finishing agent for 30min and baking at 120 ℃ for 1 h.
The invention has the beneficial effects that: the flame retardant prepared by the invention not only has excellent flame retardant property, but also has high hydrophobicity and corrosion resistance, improves the mechanical property of the finished flame retardant material, and is different from most of flame retardant materials prepared by the prior art in that only the flame retardant property exists. The flame retardant prepared by the invention has excellent flame retardant performance, and the flame retardant effect can reach V-0 level. After the fiber material is treated by the flame retardant prepared by the invention, the limiting oxygen index is improved from 19% to 32%, and the static water absorption time is as high as more than 3 h. After the flame retardant prepared by the invention is used for treating materials, the required curing temperature is lower, and the heat energy expenditure cost of enterprises can be greatly saved. The flame retardant prepared by the invention is green, environment-friendly and biodegradable, and accords with the current social concept of green development. The method has the advantages of short flow and good effect, and can meet the requirements of industrial production.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with examples are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1:
placing 20 parts of epoxy resin into a beaker, respectively adding 5 parts of phosphorus pentoxide and 6 parts of ammonium dihydrogen phosphate, then adding 1 part of dipropylene glycol, then respectively adding 1 part of phenolic resin, 1 part of silicone resin and 0.5 part of isocyanate, and finally adding 1 part of 100nm SiO2And 1 part of 50nm SiO2And 1 part of N-methylolacrylamide, and the N-methylolacrylamide is added while being uniformly stirred by a glass rod in the adding process.
Preparation method and test result of the finishing agent:
1. taking cotton fabric as an example, putting the textile into the flame retardant liquid for soaking for 30min, taking out the textile, putting the textile into a 120-DEG vacuum drying oven for drying for 1h, and cooling to room temperature.
2. The flame retardant performance rating of the textile treated by the flame retardant liquid is V-1 according to the UL94 standard for testing the flame retardant performance of the textile.
3. The moisture resistance of the textile surface is measured according to GB/T4745-1997, and the result shows that the grade of the moisture resistance is 5.
Example 2:
placing 20 parts of epoxy resin into a beaker, respectively adding 6 parts of phosphorus pentoxide and 6 parts of ammonium dihydrogen phosphate, then adding 1 part of dipropylene glycol, then respectively adding 1 part of phenolic resin, 1 part of silicone resin and 1 part of isocyanate, and finally adding 1 part of 100nm SiO2And 1 part of 50nm SiO2And 1 part of N-methylolacrylamide, and the N-methylolacrylamide is added while being uniformly stirred by a glass rod in the adding process.
Preparation method and test result of the finishing agent:
1. taking cotton fabric as an example, putting the textile into the flame retardant liquid for soaking for 30min, taking out the textile, putting the textile into a 120-DEG vacuum drying oven for drying for 1h, and cooling to room temperature.
2. The flame retardant performance rating of the textile treated by the flame retardant liquid is V-1 according to the UL94 standard for testing the flame retardant performance of the textile.
3. The moisture resistance of the textile surface is measured according to GB/T4745-1997, and the result shows that the grade of the moisture resistance is 5.
Example 3:
placing 20 parts of epoxy resin into a beaker, respectively adding 7 parts of phosphorus pentoxide and 6 parts of ammonium dihydrogen phosphate, then adding 1 part of dipropylene glycol, then respectively adding 1 part of phenolic resin, 1 part of silicone resin and 1 part of isocyanate, and finally adding 1 part of 100nm SiO2And 1 part of 50nm SiO2And 1 part of N-methylolacrylamide, and the N-methylolacrylamide is added while being uniformly stirred by a glass rod in the adding process.
Preparation method and test result of the finishing agent:
1. taking cotton fabric as an example, putting the textile into the flame retardant liquid for soaking for 30min, taking out the textile, putting the textile into a 120-DEG vacuum drying oven for drying for 1h, and cooling to room temperature.
2. The flame retardant performance rating of the textile treated by the flame retardant liquid is V-0 according to the UL94 standard for testing the flame retardant performance of the textile.
3. The moisture resistance of the textile surface is measured according to GB/T4745-1997, and the result shows that the grade of the moisture resistance is 5.
In the invention, epoxy resin is used as a base carrier, phosphorus pentoxide, ammonium dihydrogen phosphate and silicon dioxide are used as additives, dipropylene glycol is used as a wetting agent, phenolic resin, silicon resin and isocyanate are used as curing agents, N-hydroxymethyl acrylamide is used as a cross-linking agent, and all the components have synergistic effect. In addition, phosphorus pentoxide and ammonium dihydrogen phosphate are uniformly dispersed in the resin matrix and can be distributed on the surface of the coating to play a role in flame retardance, and after the epoxy resin is cured by the cooperation of phenolic resin and silicon resin, the coating has flame retardance and modified SiO with high-temperature resistance is added2Thereby the textile has excellent flame retardant property.
Epoxy resin forms a network structure on the surface of a textile through crosslinking under the curing of a curing agent isocyanate, has hydrophobicity, and is added with double-dispersion modified SiO2(the particle sizes are respectively 50nm and 100nm), the hydrophobic nano-particles are uniformly dispersed in a resin matrix and adsorbed among fiber macromolecules and on the surface of fibers, so that the roughness of the coating film can be improved, and the hydrophobic nano-particles have high hydrophobic property.
Epoxy has very strong cohesiveness, owing to add wetting agent dipropylene glycol for the resin can be easier get into between the fibre macromolecule, thereby make and have very strong adhesive strength between the fibre macromolecule, again form the coating on the fibre surface, make the fabrics be difficult for coming off when receiving the exogenic action and take place the fracture, finally make the fabrics can bear bigger external force, so the fabrics mechanical properties who has handledCan be improved. Modified SiO is additionally added2So that the wear resistance of the textile is enhanced. In conclusion, the mechanical property of the textile is improved. The coating formed by the epoxy resin under the curing of the curing agent has corrosion resistance, so that the textile has the corrosion resistance.
Example 4:
placing 21 parts of epoxy resin into a beaker, respectively adding 7 parts of phosphorus pentoxide and 6 parts of ammonium dihydrogen phosphate, then adding 1 part of dipropylene glycol, then respectively adding 2 parts of phenolic resin, 1 part of silicone resin and 1 part of isocyanate, and finally adding 1 part of 100nm SiO2And 1 part of 50nm SiO2And 1 part of N-methylolacrylamide, and the N-methylolacrylamide is added while being uniformly stirred by a glass rod in the adding process.
Preparation method and test result of the finishing agent:
1. taking cotton fabric as an example, putting the textile into the flame retardant liquid for soaking for 30min, taking out the textile, putting the textile into a 120-DEG vacuum drying oven for drying for 1h, and cooling to room temperature.
2. The flame retardant performance rating of the textile treated by the flame retardant liquid is V-1 according to the UL94 standard for testing the flame retardant performance of the textile.
3. The moisture resistance of the textile surface is measured according to GB/T4745-1997, and the result shows that the grade of the moisture resistance is 5.
Example 5:
placing 21 parts of epoxy resin into a beaker, respectively adding 7 parts of phosphorus pentoxide and 6 parts of ammonium dihydrogen phosphate, then adding 1 part of dipropylene glycol, then respectively adding 1 part of phenolic resin, 2 parts of silicone resin and 1 part of isocyanate, and finally adding 1 part of 100nm SiO2And 1 part of 50nm SiO2And 1 part of N-methylolacrylamide, and the N-methylolacrylamide is added while being uniformly stirred by a glass rod in the adding process.
Preparation method and test result of the finishing agent:
1. taking cotton fabric as an example, putting the textile into the flame retardant liquid for soaking for 30min, taking out the textile, putting the textile into a 120-DEG vacuum drying oven for drying for 1h, and cooling to room temperature.
2. The flame retardant performance rating of the textile treated by the flame retardant liquid is V-1 according to the UL94 standard for testing the flame retardant performance of the textile.
3. The moisture resistance of the textile surface is measured according to GB/T4745-1997, and the result shows that the grade of the moisture resistance is 5.
Examples 6 to 10:
the textile was finished using the method of example 3, with the components according to table 1.
Comparative example 1:
placing 20 parts of epoxy resin into a beaker, respectively adding 5 parts of phosphorus pentoxide and 6 parts of magnesium hydroxide, adding 1 part of dipropylene glycol, respectively adding 2 parts of phenolic resin, 2 parts of silicone resin and 1 part of isocyanate, and finally adding 1 part of 100nm SiO2And 1 part of 50nm SiO2And 1 part of N-methylolacrylamide, and the N-methylolacrylamide is added while being uniformly stirred by a glass rod in the adding process.
Preparation method and test result of the finishing agent:
1. soaking the cotton fabric in the flame retardant liquid for 30min, taking out, placing in a 120-DEG vacuum drying oven, drying for 1h, and cooling to room temperature.
2. The flame retardant performance rating of the textile treated by the flame retardant liquid is V-1 according to the UL94 standard for testing the flame retardant performance of the textile.
3. The moisture resistance of the textile surface is measured according to GB/T4745-1997, and the result shows that the grade of the moisture resistance is 5.
4. The mechanical properties of the textile are measured to be poor.
Comparative example 2:
placing 20 parts of epoxy resin into a beaker, respectively adding 5 parts of phosphorus pentoxide and 1 part of dipropylene glycol, respectively adding 2 parts of phenolic resin, 2 parts of silicone resin and 1 part of isocyanate, and finally adding 1 part of 100nm SiO2And 1 part of 50nm SiO2And 1 part of N-methylolacrylamide, and the N-methylolacrylamide is added while being uniformly stirred by a glass rod in the adding process.
Preparation method and test result of the finishing agent:
1. soaking the cotton fabric in the flame retardant liquid for 30min, taking out, placing in a 120-DEG vacuum drying oven, drying for 1h, and cooling to room temperature.
2. The flame retardant performance rating of the textile treated by the flame retardant liquid is V-2 according to the UL94 standard for testing the flame retardant performance of the textile.
3. The moisture resistance of the textile surface is measured according to GB/T4745-1997, and the result shows that the grade of the moisture resistance is 5.
Table 1 formulations of different embodiments of the invention
Remarking: 1. the formula for preparing the flame retardant is also added with 1 part of dipropylene glycol and 1 part of 100nm SiO2And 1 part of 50nm SiO2And 2 parts of N-methylolacrylamide, none of which are indicated in Table 1;
table 2 textiles were treated with the flame retardant liquid prepared in example 3 of table 1 and their relevant properties were measured
Table 3 textiles were treated with the flame retardant liquid prepared in example 3 of table 1 and their relevant properties were measured
Table 4 textiles were treated with the flame retardant liquid prepared in example 3 of table 1 and their relevant properties were measured
In conclusion, the epoxy resin is cured by adopting a specific combination of multiple curing agents, which is different from the curing of the epoxy resin in the prior art (for example, 4' -diaminodiphenylmethane is heated to 100-120 ℃ to be completely melted, triethyl phosphate is added, and then the temperature is raised to 130-140 ℃ to react for 4-5 hours to obtain the flame-retardant epoxy resin curing agent, and after the bischloromethylated benzenes or aralkyl ethers and organic polyphenol are subjected to condensation polymerization reaction, the bischloromethylated benzenes or aralkyl ethers react with benzaldehyde or hydroxybenzaldehyde to generate the phenolic hydroxyl resin with high content of benzene rings, namely the special curing agent for the epoxy resin), the preparation process is simple and rapid, and the final product shows that the multiple curing agents have the effect of mutual assistance.
The flame retardant prepared by the invention is added with double-dispersion modified SiO2The particle sizes of the nano particles are respectively 50nm and 100nm, and the nano particles are uniformly dispersed in the resin base, so that the flame retardant property of the flame retardant is effectively enhanced, and the method is different from the method of adding SiO with single particle size in the prior art2。
The flame retardant prepared by the invention does not use an organic solvent, is different from the prior art that a curing agent and epoxy resin are mixed according to a certain proportion, and the organic solvent, the accelerant and the filler are added and stirred to be uniformly mixed.
The flame retardant prepared by the invention not only has excellent flame retardant property, but also has high hydrophobicity and corrosion resistance, improves the mechanical property of the finished flame retardant material, and is different from most of flame retardant materials prepared by the prior art in that only the flame retardant property exists. The flame retardant prepared by the invention has excellent flame retardant performance, and the flame retardant effect can reach V-0 level. After the fiber material is treated by the flame retardant prepared by the invention, the limiting oxygen index is improved from 19% to 32%, and the static water absorption time is as high as more than 3 h. After the flame retardant prepared by the invention is used for treating materials, the required curing temperature is lower, and the heat energy expenditure cost of enterprises can be greatly saved. The flame retardant prepared by the invention is green, environment-friendly and biodegradable, and accords with the current social concept of green development. The method has the advantages of short flow and good effect, and can meet the requirements of industrial production.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (2)
1. A preparation method of a finishing agent for endowing textiles with multiple functions is characterized by comprising the following steps: the epoxy resin curing agent comprises, by mass, 20-22 parts of epoxy resin, 7-13 parts of a mixture of phosphorus pentoxide and ammonium dihydrogen phosphate, 1-2 parts of a wetting agent and 1.5-3 parts of a curing agent; and adding 2-4 parts of silicon dioxide and 1-2 parts of a cross-linking agent to obtain a finishing agent, wherein the content of phosphorus pentoxide is 4-7 parts, the content of ammonium dihydrogen phosphate is 3-6 parts, the wetting agent is dipropylene glycol, and the curing agent is phenolic resin, silicon resin and isocyanate, wherein the content of the phenolic resin is 0.5-1 part, the content of the silicon resin is 0.5-1 part, the content of the isocyanate is 0.5-1 part, and the mass ratio of the phenolic resin to the silicon resin to the isocyanate is 1: 1: 1, the cross-linking agent is N-methylolacrylamide, and the added 2-4 parts of silicon dioxide comprise 1-2 parts of 100nm silicon dioxide and 1-2 parts of 50nm silicon dioxide in parts by mass.
2. A process for the preparation of a finishing agent imparting versatility to textiles as claimed in claim 1, characterized in that: the epoxy resin coating comprises, by mass, 20 parts of epoxy resin, 7 parts of phosphorus pentoxide, 6 parts of ammonium dihydrogen phosphate, 1 part of phenolic resin, 1 part of silicone resin, 1 part of isocyanate, 1 part of 100nm silica, 1 part of 50nm silica and 2 parts of N-hydroxymethyl acrylamide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810704638.1A CN108978224B (en) | 2018-06-30 | 2018-06-30 | Preparation method and finishing method of finishing agent for endowing textiles with multiple functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810704638.1A CN108978224B (en) | 2018-06-30 | 2018-06-30 | Preparation method and finishing method of finishing agent for endowing textiles with multiple functions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108978224A CN108978224A (en) | 2018-12-11 |
| CN108978224B true CN108978224B (en) | 2021-02-12 |
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| CN101307170B (en) * | 2008-07-10 | 2011-08-10 | 天津市凯华绝缘材料有限公司 | Fire retardant phosphorus-containing epoxy powder composition |
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Effective date of registration: 20210324 Address after: No.33, Sanxing East Road, Shatou Town, Guangling District, Yangzhou City, Jiangsu Province 225000 Patentee after: YANGZHOU JIYUAN TEXTILE Co.,Ltd. Address before: No. 1800 road 214122 Jiangsu Lihu Binhu District City of Wuxi Province Patentee before: Jiangnan University |