阅读说明：本技术 一种具有阻燃性能的氨纶油剂和基于其的阻燃型氨纶纤维 (Polyurethane oil agent with flame retardant property and flame retardant polyurethane fiber based on same ) 是由 王京玉 贾秋梓 冯双胜 张伟 侯方震 于 2020-12-15 设计创作，主要内容包括：本发明公开了一种具有阻燃性能的氨纶油剂和基于其的阻燃型氨纶纤维,属于干法纺丝用氨纶油剂技术领域。本发明所述具有阻燃性能的氨纶油剂包括如下组分：按重量百分比计,氯化石蜡油40％～80％,改性硅油20％～40％,阻燃剂8％～15％,抗静电剂1％～5％,分散剂1％～5％,以上组分百分比含量之和为100％,以总量计。将本发明所述具有阻燃性能的氨纶油剂用于氨纶纤维的干法纺丝,能够制得一种阻燃型氨纶纤维本发明的特点在于有效解决了氨纶纤维本身易燃的特性,赋予氨纶纤维较高的阻燃效果且热稳定性好,不会降低或减少氨纶本身的力学性能。(The invention discloses a spandex oil agent with flame retardant property and flame-retardant spandex fibers based on the spandex oil agent, and belongs to the technical field of spandex oil agents for dry spinning. The polyurethane oil agent with flame retardant property comprises the following components: according to weight percentage, 40-80 percent of chlorinated paraffin oil, 20-40 percent of modified silicone oil, 8-15 percent of flame retardant, 1-5 percent of antistatic agent and 1-5 percent of dispersant, wherein the sum of the percentage contents of the components is 100 percent in total. The invention is characterized in that the problem of flammability of spandex fiber is effectively solved, the spandex fiber has higher flame retardant effect and good thermal stability, and the mechanical property of the spandex fiber is not reduced or reduced.)

1. A spandex oil agent with flame retardant property is characterized by comprising the following components: according to weight percentage, 50-80 percent of chlorinated paraffin oil, 10-40 percent of modified silicone oil, 8-15 percent of flame retardant, 1-5 percent of antistatic agent and 1-5 percent of dispersant.

2. The spandex oil with flame retardant property of claim 1, wherein the chlorinated paraffin oil has a kinematic viscosity of 10-35 mm at 40 ℃²/s。

3. The spandex oil with flame retardant property of claim 1, wherein the modified silicone oil is phenyl modified silicone oil.

4. The spandex oil with flame retardant property of claim 3, wherein the kinematic viscosity of the phenyl modified silicone oil at 40 ℃ is 50-100 mm²/s。

5. The spandex oil with flame retardant property of claim 1, wherein the flame retardant is one or more of antimony pentoxide, ammonium phosphate salt, brominated polystyrene or phosphotriester.

6. The spandex oil with flame retardant property of claim 1, wherein the antistatic agent is one or more of a quaternary ammonium salt cationic surfactant, a modified sulfonate anionic surfactant or a modified phosphate anionic surfactant.

7. The spandex oil with flame retardant property of claim 1, wherein the dispersant is one or both of fatty amine polyoxyethylene ether and oleyl alcohol polyoxyethylene ether.

8. A flame-retardant spandex fiber is characterized by comprising: the polyurethane oil with flame retardant property of any one of claims 1 to 7 is used for being prepared by polyurethane dry spinning.

9. The flame-retardant spandex fiber according to claim 8, wherein the oiling rate of the spandex oil with flame-retardant property in dry spinning is 3% to 7%; preferably, the oiling rate is 5%.

10. The flame-retardant spandex fiber according to claim 8, wherein the limited oxygen index of the flame-retardant spandex fiber is not less than 27%.

Technical Field

The invention belongs to the technical field of spandex oil agents for dry spinning, and relates to a spandex oil agent with flame retardant property and flame-retardant spandex fibers based on the spandex oil agent.

Background

Spandex is a long-chain polymer synthetic fiber containing at least 85% by weight of polyurethane chain segments, and because the spandex itself belongs to an inflammable substance, the conventional spandex oil agent is mainly formed by mixing mineral oil and dimethyl silicone oil, and although the mineral oil and the dimethyl silicone oil are not inflammable substances, the combustion of the spandex fiber cannot be effectively prevented. With the development of times, flame-retardant textiles are more and more concerned and paid attention to, especially, the requirement of people on the comfort level of the flame-retardant textiles is higher and higher, and the flame-retardant spandex becomes a hotspot of the current differentiated spandex research. The research of the flame-retardant spandex can effectively avoid 'homogenization' competition and has higher social value.

In the prior art, in order to increase the flame retardant property of spandex fibers, two methods of adding a flame retardant auxiliary agent in the spandex production process or performing flame retardant finishing on spandex-containing fabrics are mainly adopted. The flame retardant auxiliary is modified by a method, if a better flame retardant effect is achieved, the mass ratio of the addition amount of the flame retardant auxiliary is more than or equal to 10%, the mechanical property of spandex is greatly influenced by the addition of an excessively high flame retardant auxiliary, and the stability of the spandex in the spinning process can be reduced; the latter method for flame-retardant finishing of spandex-containing fabric refers to that the fabric is soaked in a flame retardant and then dried, the method can obviously reduce the mechanical property of the fabric, the flame-retardant efficiency is low, the process is complex, the pollution is serious, and the fabric is easy to yellow and discolor, so that the attractiveness is affected.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide the spandex oil agent with the flame retardant property and the flame-retardant spandex fiber based on the spandex oil agent, so that the defect of flammable materials of spandex is effectively overcome, the spandex oil agent with the flame retardant property, disclosed by the invention, has a higher flame retardant effect and good thermal stability, and the mechanical property of the spandex fiber is not influenced.

In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:

the invention discloses a spandex oil agent with flame retardant property, which comprises the following components: according to weight percentage, 50-80 percent of chlorinated paraffin oil, 10-40 percent of modified silicone oil, 8-15 percent of flame retardant, 1-5 percent of antistatic agent and 1-5 percent of dispersant, wherein the sum of the percentage contents of the components is 100 percent.

Preferably, the first and second electrodes are formed of a metal,the kinematic viscosity of the chlorinated paraffin oil at 40 ℃ is 10-35 mm²/s。

Preferably, the modified silicone oil is phenyl modified silicone oil.

More preferably, the kinematic viscosity of the phenyl modified silicone oil at 40 ℃ is 50-100 mm²/s。

Preferably, the flame retardant is one or more of antimony pentoxide, ammonium phosphate salt, brominated polystyrene or phosphoric triester.

Preferably, the antistatic agent is one or more of quaternary ammonium salt cationic surfactant, modified sulfonate anionic surfactant or modified phosphate anionic surfactant.

Preferably, the dispersant is one or two of fatty amine polyoxyethylene ether or oleyl alcohol polyoxyethylene ether.

The invention also discloses a flame-retardant spandex fiber which is prepared by spinning the spandex oil agent with flame retardance by a spandex dry method.

Preferably, the oiling rate of the spandex oil agent with flame retardant property in dry spinning is 3-7%.

Preferably, the oiling rate is 5%.

Preferably, the limit oxygen index of the flame-retardant spandex fiber is more than or equal to 27%.

Further preferably, the limit oxygen index of the flame-retardant spandex fiber can reach 27% -30%.

Compared with the prior art, the invention has the following beneficial effects:

aiming at the characteristic that spandex fiber is flammable, the invention develops the spandex oil agent with flame retardant property specially applied to spandex fiber, and the spandex oil agent with flame retardant property provided by the invention changes the component composition of the traditional spandex oil agent, substitutes chlorinated paraffin oil for the traditional mineral oil, and adds a certain proportion of flame retardant to the spandex oil agent with flame retardant property to enhance the flame retardant effect. Therefore, the spandex oil agent with the flame retardant property disclosed by the invention can have stable flame retardant property and service performance.

Further, the flame retardant effect of the spandex oil agent with flame retardant property can be enhanced by using phenyl modified silicone oil instead of the conventional dimethyl silicone oil

The invention also discloses a flame-retardant spandex fiber prepared based on the spandex oil agent with flame-retardant property. The spandex oil agent with the flame-retardant effect is subjected to dry spinning to form effective coating on the surface of spandex fibers, so that the mechanical property of the spandex fibers is not reduced or reduced, the high flame-retardant effect and the good thermal stability of the spandex fibers can be ensured, the environment is not polluted in the flame-retardant process, and the color and luster of fabrics are not influenced.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.

It is noted that the terms first, second and the like in the description and in the claims of the present invention are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The invention discloses a spandex oil agent with flame retardant property, which comprises the following components: according to weight percentage, 50-80 percent of chlorinated paraffin oil, 10-40 percent of modified silicone oil, 8-15 percent of flame retardant, 1-5 percent of antistatic agent and 1-5 percent of dispersant, wherein the sum of the percentage contents of the components is 100 percent based on the total amount;

wherein the chlorinated paraffin oil is formed by chlorinating conventional mineral oil, and the kinematic viscosity of the chlorinated paraffin oil at 40 ℃ is 10-35 mm²/s；

Wherein the modified silicone oil is phenyl modified silicone oil, and the kinematic viscosity at 40 ℃ is 50-100 mm²/s；

Wherein the flame retardant is one or more of inorganic flame retardants of antimony pentoxide or ammonium phosphate salts and organic flame retardants of brominated polystyrene or phosphoric triester;

wherein the antistatic agent is one or more of quaternary ammonium salt cationic surfactant, modified sulfonate anionic surfactant or modified phosphate anionic surfactant;

wherein, the dispersant is one or two of fatty alcohol polyoxyethylene ether or oleyl alcohol polyoxyethylene ether.

Specifically, when the spandex oil agent with the flame-retardant property is used for dry spinning of spandex, the oiling rate is 3% -7%, and finally the formed flame-retardant spandex fiber has excellent flame-retardant property.

Example 1

50g of chlorinated paraffin oil and 30g of phenyl modified silicone oil are sequentially placed in a reaction container, heated to 60 ℃ and stirred for 10min, then 3g of antimony pentoxide, 4g of ammonium phosphate, 4g of brominated polystyrene, 4g of tris (2.3-dichloropropyl) phosphate, 1g of octadecyl trimethyl ammonium chloride, 2g of sodium polyoxyethylene ether sulfonate and 2g of fatty alcohol polyoxyethylene ether are sequentially added, the mixture is fully stirred for 1 hour until the liquid is transparent and uniform, and the temperature is reduced to normal temperature, so that the polyurethane oil with flame retardance is obtained.

Wherein the chlorinated paraffin oil has a kinematic viscosity of 10mm at 40 deg.C²(s) the kinematic viscosity of the phenyl-modified silicone oil at 40 ℃ is 80mm²/s。

Example 2

A polyurethane oil agent with flame retardant property is prepared by putting 53g of chlorinated paraffin oil and 33g of phenyl modified silicone oil into a reaction vessel in sequence, heating to 60 ℃ and stirring for 10min, then adding 4g of antimony pentoxide, 3g of ammonium phosphate, 3g of brominated polystyrene, 2g of polyoxyethylene ether sodium sulfonate and 2g of oleyl alcohol polyoxyethylene ether in sequence, fully stirring for 1 hour until the liquid is transparent and uniform, and cooling to normal temperature to obtain the polyurethane oil agent with flame retardant property.

Wherein the chlorinated paraffin oil has a kinematic viscosity of 20mm at 40 deg.C²(s) the kinematic viscosity of the phenyl-modified silicone oil at 40 ℃ is 50mm²/s。

Example 3

A polyurethane oil agent with flame retardant property is prepared by sequentially putting 65g of chlorinated paraffin oil and 25g of phenyl modified silicone oil into a reaction vessel, heating to 60 ℃, stirring for 10min, then sequentially adding 4g of ammonium phosphate, 4g of brominated polystyrene, 1g of isotridecyl alcohol ether phosphate and 1g of oleyl alcohol polyoxyethylene ether, fully stirring for 1 hour until the liquid is transparent and uniform, and cooling to normal temperature to obtain the polyurethane oil agent with flame retardant property.

Wherein the chlorinated paraffin oil has a kinematic viscosity of 35mm at 40 deg.C²(s) the kinematic viscosity of the phenyl-modified silicone oil at 40 ℃ is 95mm²/s。

Example 4

75g of chlorinated paraffin oil and 10g of phenyl modified silicone oil are sequentially placed in a reaction container, heated to 60 ℃ and stirred for 10min, then 3g of antimony pentoxide, 4g of ammonium phosphate, 4g of brominated polystyrene, 2g of octadecyl trimethyl ammonium chloride, 1g of fatty alcohol polyoxyethylene ether and 1g of oleyl alcohol polyoxyethylene ether are sequentially added, the mixture is fully stirred for 1 hour until the liquid is transparent and uniform, and the temperature is reduced to normal temperature, so that the polyurethane oil with flame retardance is obtained.

Wherein the chlorinated paraffin oil has a kinematic viscosity of 30mm at 40 deg.C²(s) the kinematic viscosity of the phenyl-modified silicone oil at 40 ℃ is 100mm²/s。

Example 5

A polyurethane oil agent with flame retardant property is prepared by sequentially placing 80g of chlorinated paraffin oil and 10g of phenyl modified silicone oil into a reaction container, heating to 60 ℃ and stirring for 10min, then sequentially adding 4g of ammonium phosphate salt, 4g of brominated polystyrene, 1g of octadecyl trimethyl ammonium chloride, 0.5g of fatty alcohol polyoxyethylene ether and 0.5g of oleyl alcohol polyoxyethylene ether, fully stirring for 1 hour until liquid is transparent and uniform, and cooling to normal temperature to obtain the polyurethane oil agent with flame retardant property.

Wherein the chlorinated paraffin oil has a kinematic viscosity of 15mm at 40 deg.C²(s) the kinematic viscosity of the phenyl-modified silicone oil at 40 ℃ is 60mm²/s。

Example 6

A polyurethane oil agent with flame retardant property is prepared by sequentially putting 50g of chlorinated paraffin oil and 40g of phenyl modified silicone oil into a reaction vessel, heating to 60 ℃ and stirring for 10min, then sequentially adding 4g of tris (2, 3-dichloropropyl) phosphate, 4g of brominated polystyrene, 1g of isotridecyl alcohol ether phosphate and 1g of oleyl alcohol polyoxyethylene ether, fully stirring for 1 hour until the liquid is transparent and uniform, and cooling to normal temperature to obtain the polyurethane oil agent with flame retardant property.

Wherein the chlorinated paraffin oil has a kinematic viscosity of 30mm at 40 deg.C²(s) the kinematic viscosity of the phenyl-modified silicone oil at 40 ℃ is 90mm²/s。

Example 7

60g of chlorinated paraffin oil and 17g of phenyl modified silicone oil are sequentially placed in a reaction container, heated to 60 ℃ and stirred for 10min, then 13g of brominated polystyrene, 2g of octadecyl trimethyl ammonium chloride, 2g of polyoxyethylene ether sodium sulfonate, 1g of isotridecyl alcohol ether phosphate, 3g of fatty alcohol polyoxyethylene ether and 2g of oleyl alcohol polyoxyethylene ether are sequentially added, the mixture is fully stirred for 1 hour until the liquid is transparent and uniform, and the temperature is reduced to normal temperature, so that the polyurethane oil with flame retardance is obtained.

Wherein the chlorinated paraffin oil has a kinematic viscosity of 35mm at 40 deg.C²(s) the kinematic viscosity of the phenyl-modified silicone oil at 40 ℃ is 95mm²/s。

Example 8

The spandex flame-retardant oil agent with flame-retardant performance prepared by the method of the embodiment 1-embodiment 7 is used for preparing spandex yarns by dry spinning, preferably, the oiling rate is 5%, the spandex yarns are oiled by a roller method and wound into cheese at the spinning speed of 800m/min to prepare 40D spandex yarns, namely the flame-retardant spandex fibers.

According to FZT 50006-2013 and GBT 5454-1997, the flame-retardant spandex fiber produced in the above example is subjected to physical property index and flame retardant property tests, and the data are as follows:

table 1 table for testing performance of flame retardant spandex fiber prepared using the spandex oil agent having flame retardant property of example 1 to example 4

In the above table, the flame retardant spandex fibers corresponding to examples 8-1 to 8-7 respectively correspond to the flame retardant spandex oil agent with flame retardant property prepared in examples 1 to 7, and the flame retardant spandex fibers are prepared by applying oil at an application rate of 5%, applying oil by a roller method, winding at a spinning speed of 800m/min into cheese, and using the cheese for dry spinning. In the above table, the conventional spandex oil samples are different in that the conventional spandex oil is adopted, and the rest of the operating parameters are unchanged.

From the above table, it can be seen that the 40D spandex filament produced by using the spandex oil agent with flame retardant property prepared by the method of the present invention is a flame retardant spandex filament, and compared with a common 40D spandex filament product produced by using a conventional spandex oil agent sample without using the spandex oil agent with flame retardant property prepared by the present invention, the mechanical property of the spandex filament is kept unchanged, and the spandex filament has good flame retardant property.

The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.