CN109881287B - Flame-retardant wear-resistant protective product and fiber - Google Patents
Flame-retardant wear-resistant protective product and fiber Download PDFInfo
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- CN109881287B CN109881287B CN201910079436.7A CN201910079436A CN109881287B CN 109881287 B CN109881287 B CN 109881287B CN 201910079436 A CN201910079436 A CN 201910079436A CN 109881287 B CN109881287 B CN 109881287B
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Abstract
The invention provides a flame-retardant wear-resistant fiber which comprises nylon, aluminum hydroxide and alkali metal silicate. The invention also provides a flame-retardant wear-resistant protective article which contains the flame-retardant wear-resistant fiber. The invention also provides a production method of the flame-retardant wear-resistant fiber, which comprises the following steps: melting nylon at the compression section of the extruder, adding the alkali metal silicate and the aluminum hydroxide into the extruder at the compression section of the extruder, and stretching the mixture into fibers after extrusion. The flame-retardant wear-resistant protective article, the fibers used by the article and the production method of the fibers have good flame-retardant and wear-resistant properties, and the flexibility of the fibers is not obviously affected, so that the flame-retardant wear-resistant protective article can be used for producing products such as ropes, pads and blankets and can also be used for producing products such as protective fabrics and clothes.
Description
Technical Field
The invention relates to a protective article and a fiber used by the article, in particular to a flame-retardant wear-resistant protective article and a fiber used by the article.
Background
Flame resistance and abrasion resistance are desirable properties for many protective articles, such as protective apparel for fire protection, life ropes, and the like.
The main production modes of the wear-resistant fiber comprise that firstly, silicon oil is adopted as a wear-resistant modifier, secondly, fluorine-containing resin and other wear-resistant resins are adopted, thirdly, inorganic components such as graphite are added, the former two modes are easy to age and lose wear resistance under a high-temperature condition or after long-term use, and the third mode is poor in durability.
Other disclosed abrasion resistant fibers are: the polypropylene wear-resistant fiber disclosed in CN101037846A and CN102691126A is prepared by adding wear-resistant master batches into a polypropylene resin material and extruding; the abrasion-resistant fiber disclosed in CN105482362A is obtained by mixing silica fiber, epoxy resin and polyethylene; the abrasion-resistant fiber disclosed in CN106245130A is added with flint clay, quartz stone, potash feldspar and the like to obtain abrasion-resistant performance.
Flame-retardant fibers are produced by adding flame retardants, such as: the flame-retardant fiber disclosed in CN109162096A changes the flame-retardant property of the fiber through the solidification of metal cations, and the flame-retardant wire fiber disclosed in CN108866668A utilizes a coupling agent to graft nano magnesium hydroxide to a polymer main chain, thereby improving the lasting flame-retardant property of fiber products.
But currently there is a lack of a simple method of imparting both flame retardant and abrasion resistant properties to fibers.
Disclosure of Invention
Aiming at the problems of the existing flame-retardant and wear-resistant fiber, the product and the production process thereof, the application provides a flame-retardant wear-resistant protective article, the fiber used by the article and a production method of the fiber.
The invention provides a flame-retardant wear-resistant fiber in a first aspect.
In a preferred embodiment, the flame-retardant wear-resistant fiber comprises nylon, aluminum hydroxide and alkali metal silicate.
Wherein, the alkali metal can be one or two of potassium and sodium.
In a preferred embodiment, the flame retardant, abrasion resistant fiber comprises: 60-120 parts of nylon, 1-15 parts of alkali metal silicate and 1-15 parts of aluminum hydroxide.
In a more preferred embodiment, the flame retardant, abrasion resistant fiber comprises: 80-100 parts of nylon, 5-10 parts of alkali metal silicate and 3-10 parts of aluminum hydroxide.
In a preferred embodiment, the flame-retardant and wear-resistant fiber may further include: tributyl phosphate.
In a more preferred embodiment, the flame retardant, abrasion resistant fiber comprises: 60-120 parts of nylon, 1-15 parts of alkali metal silicate, 1-15 parts of aluminum hydroxide and 1-15 parts of tributyl phosphate.
In a more preferred embodiment, the flame retardant, abrasion resistant fiber comprises: 80-100 parts of nylon, 5-10 parts of alkali metal silicate, 3-10 parts of aluminum hydroxide and 3-12 parts of tributyl phosphate.
In a preferred embodiment, the flame-retardant and wear-resistant fiber may further include: one or two of plasticizer and talcum powder.
In a more preferred embodiment, the flame retardant, abrasion resistant fiber comprises: 60-120 parts of nylon, 1-15 parts of alkali metal silicate, 1-15 parts of aluminum hydroxide, 1-15 parts of tributyl phosphate, 1-10 parts of plasticizer and 1-10 parts of talcum powder.
In a more preferred embodiment, the flame retardant, abrasion resistant fiber comprises: 80-100 parts of nylon, 5-10 parts of alkali metal silicate, 3-10 parts of aluminum hydroxide, 3-12 parts of tributyl phosphate, 2-6 parts of plasticizer and 5-7 parts of talcum powder.
In a second aspect, the invention provides a flame-retardant wear-resistant protective article, which contains the flame-retardant wear-resistant fiber.
More preferably, the flame-retardant wear-resistant protective article is a textile and is obtained by weaving the flame-retardant wear-resistant fiber.
In a preferred embodiment, the flame retardant, abrasion resistant protective article may be one or more of a fabric, rope, blanket, mat, garment, or the like.
The third aspect of the invention provides a method for producing the flame-retardant wear-resistant fiber, which comprises the following steps:
heating nylon in an extruder, and melting the nylon in a compression section of the extruder;
adding alkali metal silicate and aluminum hydroxide into an extruder at a compression section of the extruder;
melt-extruding, cooling and drawing to obtain the fibre.
In a preferred embodiment, nylon is added to the extruder along with talc and plasticizer.
In a preferred embodiment, tributyl phosphate is added to the extruder in the compression section.
In a preferred embodiment, the first feeding port of the extruder is located in the area 1/3 in the middle of the compression section of the extruder, and the alkali metal silicate and the aluminum hydroxide are fed into the extruder through the first feeding port.
In a preferred embodiment, a second addition port is located in the extruder at 1/3 downstream of the compression section of the extruder, and tributyl phosphate is added to the extruder through the second addition port.
In a preferred embodiment, said cooling is preferably effected by passing the extruded mass through water.
In a more preferred embodiment, the temperature of the water is preferably 10-60 deg.C, more preferably 25-40 deg.C.
In a preferred embodiment, the residence time of the extruded material in water is preferably 20 to 60 seconds, more preferably 30 to 50 seconds, even more preferably 35 to 40 seconds.
In the above description of the present application, the extruder compression stage is divided into three sections, upstream, midstream and downstream, each of which is 1/3 the length of the compression stage, so that the region 1/3 of the compression stage midstream is the midstream region of the compression stage 1/3 and the region 1/3 of the compression stage downstream is the downstream region of the compression stage 1/3.
In the above context of the present application, the residence time in water is the time required for the fibers to pass through the water.
The flame-retardant wear-resistant protective article, the fibers used by the article and the production method of the fibers have good flame-retardant and wear-resistant properties, and the flexibility of the fibers is not obviously affected, so that the flame-retardant wear-resistant protective article can be used for producing products such as ropes, pads and blankets and can also be used for producing products such as protective fabrics and clothes.
Detailed Description
Example 1
In this embodiment, the flame-retardant wear-resistant fiber includes: 80 parts of nylon, 5 parts of talcum powder, 5 parts of alkali metal silicate, 3 parts of plasticizer and 6 parts of aluminum hydroxide.
In this embodiment, the production method of the flame-retardant wear-resistant fiber includes:
heating nylon, talcum powder and plasticizer in an extruder to melt the nylon in a compression section of the extruder;
adding alkali metal silicate and aluminum hydroxide into the melt in the extruder at the compression section of the extruder;
the melt is extruded and drawn and stretched, and the extrudate is passed through cooling water at 25 ℃ for 30 seconds to form fibers.
Example 2
In this embodiment, the flame-retardant wear-resistant fiber includes: 80 parts of nylon, 5 parts of talcum powder, 5 parts of alkali metal silicate, 3 parts of plasticizer, 6 parts of aluminum hydroxide and 5 parts of tributyl phosphate.
In this embodiment, the production method of the flame-retardant wear-resistant fiber includes:
heating nylon, talcum powder and plasticizer in an extruder to melt the nylon in a compression section of the extruder;
adding alkali metal silicate and aluminum hydroxide into the melt in the extruder at the compression section of the extruder, wherein the adding position is in the midstream of the compression section; adding tributyl phosphate into the melt in the extruder at a compression section of the extruder, the addition location being downstream of the compression section;
the melt is extruded and drawn and stretched, and the extrudate is passed through cooling water at 25 ℃ for 30 seconds to form fibers.
Example 3
In this embodiment, the flame-retardant wear-resistant fiber includes: 100 parts of nylon, 7 parts of talcum powder, 8 parts of alkali metal silicate, 3 parts of plasticizer, 8 parts of aluminum hydroxide and 10 parts of tributyl phosphate.
In this embodiment, the production method of the flame-retardant wear-resistant fiber includes:
heating nylon, talcum powder and plasticizer in an extruder to melt the nylon in a compression section of the extruder;
adding alkali metal silicate and aluminum hydroxide into the melt in the extruder at the compression section of the extruder, wherein the adding position is in the midstream of the compression section; adding tributyl phosphate into the melt in the extruder at a compression section of the extruder, the addition location being downstream of the compression section;
the melt is extruded and drawn and stretched, and the extrudate is passed through cooling water at 25 ℃ for 30 seconds to form fibers.
Example 4
In this embodiment, the flame-retardant wear-resistant fiber includes: 90 parts of nylon, 8 parts of talcum powder, 10 parts of alkali metal silicate, 4 parts of plasticizer, 6 parts of aluminum hydroxide and 10 parts of tributyl phosphate.
In this embodiment, the production method of the flame-retardant wear-resistant fiber includes:
heating nylon, talcum powder and plasticizer in an extruder to melt the nylon in a compression section of the extruder;
adding alkali metal silicate and aluminum hydroxide into the melt in the extruder at the compression section of the extruder, wherein the adding position is in the midstream of the compression section; adding tributyl phosphate into the melt in the extruder at a compression section of the extruder, the addition location being downstream of the compression section;
the melt is extruded and drawn and stretched, and the extrudate is passed through cooling water at 25 ℃ for 30 seconds to form fibers.
Example 5
In this embodiment, the flame-retardant wear-resistant fiber includes: 90 parts of nylon, 8 parts of talcum powder, 10 parts of alkali metal silicate, 4 parts of plasticizer, 6 parts of aluminum hydroxide and 10 parts of tributyl phosphate.
In this embodiment, the production method of the flame-retardant wear-resistant fiber includes:
heating nylon, talcum powder and plasticizer in an extruder to melt the nylon in a compression section of the extruder;
adding alkali metal silicate, aluminum hydroxide and tributyl phosphate into a melt in an extruder at a compression section of the extruder;
the melt is extruded and drawn and stretched, and the extrudate is passed through cooling water at 25 ℃ for 30 seconds to form fibers.
Example 6
In this embodiment, the flame-retardant wear-resistant fiber includes: 90 parts of nylon, 8 parts of talcum powder, 10 parts of alkali metal silicate, 4 parts of plasticizer, 6 parts of aluminum hydroxide and 10 parts of tributyl phosphate.
In this embodiment, the production method of the flame-retardant wear-resistant fiber includes:
heating nylon, talcum powder and plasticizer in an extruder to melt the nylon in a compression section of the extruder;
adding alkali metal silicate, aluminum hydroxide and tributyl phosphate into a melt in an extruder at a compression section of the extruder;
the melt is extruded, and the extrudate is drawn and stretched to form fibers within 5 seconds by passing cooling water at 25 ℃.
Comparative example 1
The fiber comprises: 80 parts of nylon, 8 parts of talcum powder, 4 parts of plasticizer and 16 parts of tributyl phosphate.
The fiber production method comprises the following steps:
heating nylon, talcum powder and plasticizer in an extruder to melt the nylon in a compression section of the extruder;
adding tributyl phosphate into the melt in the extruder at the compression section of the extruder;
the melt was extruded, drawn and stretched and the extrudate was passed through cooling water at 25 ℃ for 30 seconds to form fibers.
Comparative example 2
The fiber comprises: 80 parts of nylon, 8 parts of talcum powder, 4 parts of plasticizer and 10 parts of tributyl phosphate.
The fiber production method comprises the following steps:
heating nylon, talcum powder and plasticizer in an extruder to melt the nylon in a compression section of the extruder;
adding tributyl phosphate into the melt in the extruder at the compression section of the extruder;
the melt was extruded, drawn and stretched and the extrudate was passed through cooling water at 25 ℃ for 30 seconds to form fibers.
Comparative example 3
The fiber comprises: 80 parts of nylon, 8 parts of talcum powder, 4 parts of plasticizer, 10 parts of polydimethylsiloxane and 6 parts of silane coupling agent.
Nylon, polydimethylsiloxane, coupling agent, talcum powder and plasticizer are melted, extruded and spun to form fibers.
Comparative example 4
The fiber comprises: 80 parts of nylon, 8 parts of talcum powder, 4 parts of plasticizer and 10 parts of polytetrafluoroethylene. Wherein, the polytetrafluoroethylene is prepared into master batch by taking nylon as master batch and is added.
Nylon, polydimethylsiloxane, coupling agent, talcum powder and plasticizer are melted, extruded and spun to form fibers.
In the above examples and comparative examples, 2000 fibers from D10 were stranded on a stranding machine with a twist of 10-15 twists/m; then 3 strands were made into a rope with a diameter of 10mm and a twist of 30-35 twists/m.
The resulting rope flame retardant, abrasion resistance performance pairs are shown in table 1. The abrasion resistance was measured by the standard "astm d 3884", and the test samples were an initial sample a and a sample B after washing 200 times with water at 80 ℃.
TABLE 1 comparison of flame retardant and abrasion resistance of fibers
| Coefficient of friction | Sample A abrasion resistance (number of cycles) | Sample B abrasion resistance (number of cycles) | Sample A oxygen limit index (%) | Sample B oxygen limit index (%) | |
| Example 1 | 0.06 | ＞8000 | ＞8000 | 45.6 | 44.1 |
| Example 2 | 0.06 | ＞8000 | ＞8000 | 50.8 | 49.7 |
| Example 3 | 0.05 | ＞8000 | ＞8000 | 52.0 | 51.6 |
| Example 4 | 0.06 | ＞8000 | ＞8000 | 50.0 | 49.2 |
| Example 5 | 0.06 | ＞8000 | ＞8000 | 49.7 | 49.5 |
| Example 6 | 0.06 | ＞8000 | ＞8000 | 48.6 | 46.3 |
| Comparative example 1 | 0.16 | 2200 | 2000 | 42.4 | 31.1 |
| Comparative example 2 | 0.19 | 2000 | 2000 | 46.1 | 35.6 |
| Comparative example 3 | 0.10 | 4500 | 2800 | 18.4 | 18.0 |
| Comparative example 4 | 0.12 | 3600 | 2500 | 25 | 20.5 |
As can be seen from the comparison, the fibers obtained in examples 1 to 6 of the present application have good abrasion resistance and flame retardancy, and at the same time, the abrasion resistance and flame retardancy can be maintained for a long time.
Although the detection sample adopts a rope, the fiber obtained by the embodiment of the application can be used for manufacturing protective fabrics and protective clothes.
The embodiments of the present invention have been described in detail, but the embodiments are merely examples, and the present invention is not limited to the embodiments described above. Any equivalent modifications and substitutions to those skilled in the art are also within the scope of the present invention. Accordingly, equivalent changes and modifications made without departing from the spirit and scope of the present invention should be covered by the present invention.
Claims (8)
1. The flame-retardant wear-resistant fiber is characterized by comprising 60-120 parts by weight of nylon, 1-15 parts by weight of aluminum hydroxide and 1-15 parts by weight of alkali metal silicate; the production method of the flame-retardant wear-resistant fiber comprises the following steps:
heating nylon in an extruder, and melting the nylon in a compression section of the extruder;
adding alkali metal silicate and aluminum hydroxide into an extruder at a compression section of the extruder;
melt extrusion, and cooling and stretching into fibers, wherein the cooling is realized by passing the extruded material through water, and the residence time of the extruded material in the water is 20-60 seconds.
2. The flame retardant, abrasion resistant fiber of claim 1, further comprising: tributyl phosphate.
3. The flame retardant, abrasion resistant fiber according to claim 2, comprising: 60-120 parts of nylon, 1-15 parts of alkali metal silicate, 1-15 parts of aluminum hydroxide and 1-15 parts of tributyl phosphate.
4. The flame retardant, abrasion resistant fiber according to any of claims 1-3, further comprising: one or two of plasticizer and talcum powder.
5. The flame retardant, abrasion resistant fiber according to claim 4, wherein said flame retardant, abrasion resistant fiber comprises: 60-120 parts of nylon, 1-15 parts of alkali metal silicate, 1-15 parts of aluminum hydroxide, 1-15 parts of tributyl phosphate, 1-10 parts of plasticizer and 1-10 parts of talcum powder.
6. A flame retardant abrasion resistant protective article comprising the flame retardant abrasion resistant fiber of claim 1.
7. The article of claim 6, wherein the article comprises one or more of a fabric, a rope, a blanket, a pad, and an article of clothing.
8. A method for producing the flame-retardant abrasion-resistant fiber according to claim 1, comprising:
heating nylon in an extruder, and melting the nylon in a compression section of the extruder;
adding alkali metal silicate and aluminum hydroxide into an extruder at a compression section of the extruder;
and melting and extruding, and cooling and stretching to form fibers, wherein the cooling is realized by passing the extruded materials through water, and the residence time of the extruded materials in the water is 20-60 seconds.
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| JPS58104218A (en) * | 1981-12-12 | 1983-06-21 | Ozaki Kogyo Kk | Filament for flame retardant carpet |
| DE102004035508A1 (en) * | 2004-07-22 | 2006-02-16 | Clariant Gmbh | Flame-retardant polymer molding compounds |
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| CN101248225A (en) * | 2005-08-26 | 2008-08-20 | 大和纺织株式会社 | Flameproof rayon fiber and process for production thereof |
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