CN107557903A - A kind of cold-resistant polyurethane fiber material of swimming suit - Google Patents

Abstract

The invention discloses a cold-resistant polyurethane fiber material for swimsuits. Isocyanate: 100 parts of ethylene glycol: 60 parts of glycerol: 10 parts of (1S, 2S)‑2‑amino‑1‑(4‑nitrobenzene)propane‑ 1,3‑Diol: 10 parts Catalyst: 1 part Nanosilica: 10 parts 3‑(Methacryloyloxy)propyltrimethoxysilane: 1 part 3‑Aminopropylmethyldiethoxysilane : 1 part triphenylvinylsilane: 1 part polyether mixture 5 parts The polyether mixture comprises the following components by weight: 1,2-propylene glycol-1-monobutyl ether: 2 parts hydroquinone dihydroxyethyl Ether: 7 parts Ethoxyfluorfen: 1 part. The material prepared by the invention still has good elastic and mechanical properties at low temperature.

Description

A kind of cold-resistant polyurethane fiber material for swimwear

technical field

The invention relates to the field of polymers, in particular to a cold-resistant polyurethane fiber material for swimwear.

Background technique

Polyurethane is a kind of polymer whose main chain contains -NHCOO-repeating structural units. The English abbreviation is PU, including rigid polyurethane plastics, soft polyurethane plastics, polyurethane elastomers and other forms, and is divided into two categories: thermoplastic and thermosetting. Its raw materials are generally presented in the state of resin.

At the present stage, especially in swimsuits and swimming trunks, spandex is blended, especially in some professional fields, spandex swimsuits have been widely used. Spandex fibers have resilience, but in cold conditions, this resilience can be lost.

Contents of the invention

Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a cold-resistant and highly elastic polyurethane fiber material.

To achieve the above object, the present invention provides the following technical solutions:.

A cold-resistant polyurethane fiber material for swimwear,

Isocyanate: 100 parts

Ethylene glycol: 60 parts

Glycerol: 10 parts

(1S,2S)-2-Amino-1-(4-nitrophenyl)propane-1,3-diol: 10 parts

Catalyst: 1 part

Nano silicon dioxide: 10 parts

3-(Methacryloyloxy)propyltrimethoxysilane: 1 part

3-Aminopropylmethyldiethoxysilane: 1 part

Triphenylvinylsilane: 1 part

5 parts polyether mixture

Described polyether mixture comprises following composition by weight:

1,2-propanediol-1-monobutyl ether: 2 parts

Hydroquinone dihydroxyethyl ether: 7 parts

Oxyfluorfen: 1 part.

As a further improvement of the present invention: the catalyst is triethylenediamine.

As a further improvement of the present invention: the isocyanate comprises the following components by weight:

Toluene-2,4-diisocyanate: 80 parts

2-(tert-butyl)phenyl isocyanate: 15 parts

2,6-cresyl diisocyanate: 5 parts.

As a further improvement of the present invention: its preparation method is:

Step 1: Mix 50 parts of isocyanate and 30 parts of ethylene glycol, and heat at 50°C for 1 hour to obtain prepolymer A;

Step 2: Mix 30 parts of isocyanate with 20 parts of ethylene glycol and 10 parts of glycerol, and heat at 50°C for 40 minutes to obtain prepolymer B;

Step 3: Take 20 parts of isocyanate, 10 parts of ethylene glycol, (1S,2S)-2-amino-1-(4-nitrophenyl)propane-1,3-diol, control the temperature at 40°C, and keep warm for 2 hours, to obtain prepolymer C;

Step 4: Mix prepolymer A, prepolymer B, and prepolymer C, stir at the same time for 30 minutes, then raise the temperature to 110°C, and react for 1 to 2 hours to obtain prepolymer D;

Step 5: Mix and fill the prepolymer D with the catalyst, nano-silica, and polyether mixture into a container, keep the temperature at 80°C, and finally obtain polyurethane elastomer masterbatch, and add the masterbatch into a wire drawing machine to draw into fibers.

In the present invention, polyurethane and diol compounds are used as the subject of polymerization to obtain polyurethane polymers. In the selection of polyurethane, toluene-2,4-diisocyanate, 2-(tert-butyl)phenylisocyanate, 2 , the mixture of 6-cresyl diisocyanate, wherein based on toluene-2,4-diisocyanate, the added 2-(tert-butyl)phenyl isocyanate, 2,6-cresyl diisocyanate can further Improve the mechanical properties of the overall material in cold regions.

At the same time, in the selection of diol compounds, ethylene glycol, glycerol, (1S,2S)-2-amino-1-(4-nitrophenyl)propane-1,3-diol is selected, and ethylene glycol Alcohol is the main body and participates in the polymerization reaction. At the same time, glycerol can adjust the molecular structure of the overall polymer to form a three-dimensional network structure. At the same time, (1S,2S)-2-amino-1-(4-nitrophenyl)propane- The addition of 1,3-diol can improve the UV resistance of the overall material.

As a commonly used filler material, nano-silica is an inorganic material, and its performance is less affected by temperature, which can improve the mechanical strength of the overall material.

3-(methacryloyloxy)propyltrimethoxysilane, 3-aminopropylmethyldiethoxysilane,

Triphenylvinylsilane can fully guarantee the elastic performance of the overall material in cold regions, and the polyether mixture added at the same time can improve the cold resistance of the material, 1,2-propylene glycol-1-monobutyl ether, hydroquinone dihydroxy Ethyl ether and oxyfluorfen can enhance the intermolecular force of the chain segment, and with 3-(methacryloyloxy)propyltrimethoxysilane, 3-aminopropylmethyldiethoxysilane, Triphenylvinylsilane creates a synergistic effect that guarantees elasticity in cold conditions.

detailed description

Example:

Isocyanate: 100 parts

Ethylene glycol: 60 parts

Glycerol: 10 parts

(1S,2S)-2-Amino-1-(4-nitrophenyl)propane-1,3-diol: 10 parts

Catalyst: 1 part

Nano silicon dioxide: 10 parts

3-(Methacryloyloxy)propyltrimethoxysilane: 1 part

3-Aminopropylmethyldiethoxysilane: 1 part

Triphenylvinylsilane: 1 part

5 parts polyether mixture

Described polyether mixture comprises following composition by weight:

1,2-propanediol-1-monobutyl ether: 2 parts

Hydroquinone dihydroxyethyl ether: 7 parts

Oxyfluorfen: 1 part.

The catalyst is triethylenediamine.

Described isocyanate comprises following composition by weight:

Toluene-2,4-diisocyanate: 80 parts

2-(tert-butyl)phenyl isocyanate: 15 parts

2,6-cresyl diisocyanate: 5 parts.

Its preparation method is:

Step 1: Mix 50 parts of isocyanate and 30 parts of ethylene glycol, and heat at 50°C for 1 hour to obtain prepolymer A;

Step 2: Mix 30 parts of isocyanate with 20 parts of ethylene glycol and 10 parts of glycerol, and heat at 50°C for 40 minutes to obtain prepolymer B;

Step 3: Take 20 parts of isocyanate, 10 parts of ethylene glycol, (1S,2S)-2-amino-1-(4-nitrophenyl)propane-1,3-diol, control the temperature at 40°C, and keep warm for 2 hours, to obtain prepolymer C;

Step 4: Mix prepolymer A, prepolymer B, and prepolymer C, stir at the same time for 30 minutes, then raise the temperature to 110°C, and react for 1 to 2 hours to obtain prepolymer D;

Step 5: Mix and fill the prepolymer D with the catalyst, nano-silica, and polyether mixture into a container, keep the temperature at 80°C, and finally obtain polyurethane elastomer masterbatch, and add the masterbatch into a wire drawing machine to draw into fibers.

Embodiment two

Toluene-2,4-diisocyanate: 100 parts

Ethylene glycol: 60 parts

Glycerol: 10 parts

(1S,2S)-2-Amino-1-(4-nitrophenyl)propane-1,3-diol: 10 parts

Catalyst: 1 part

Nano silicon dioxide: 10 parts

3-(Methacryloyloxy)propyltrimethoxysilane: 1 part

3-Aminopropylmethyldiethoxysilane: 1 part

Triphenylvinylsilane: 1 part

5 parts polyether mixture

Described polyether mixture comprises following composition by weight:

1,2-propanediol-1-monobutyl ether: 2 parts

Hydroquinone dihydroxyethyl ether: 7 parts

Oxyfluorfen: 1 part.

The catalyst is triethylenediamine.

Its preparation method is:

Step 1: Mix 50 parts of isocyanate and 30 parts of ethylene glycol, and heat at 50°C for 1 hour to obtain prepolymer A;

Step 2: Mix 30 parts of isocyanate with 20 parts of ethylene glycol and 10 parts of glycerol, and heat at 50°C for 40 minutes to obtain prepolymer B;

Step 3: Take 20 parts of isocyanate, 10 parts of ethylene glycol, (1S,2S)-2-amino-1-(4-nitrophenyl)propane-1,3-diol, control the temperature at 40°C, and keep warm for 2 hours, to obtain prepolymer C;

Step 4: Mix prepolymer A, prepolymer B, and prepolymer C, stir at the same time for 30 minutes, then raise the temperature to 110°C, and react for 1 to 2 hours to obtain prepolymer D;

Step 5: Mix and fill the prepolymer D with the catalyst, nano-silica, and polyether mixture into a container, keep the temperature at 80°C, and finally obtain polyurethane elastomer masterbatch, and add the masterbatch into a wire drawing machine to draw into fibers.

Comparative example one:

Toluene-2,4-diisocyanate: 100 parts

Ethylene glycol: 60 parts

Glycerol: 10 parts

(1S,2S)-2-Amino-1-(4-nitrophenyl)propane-1,3-diol: 10 parts

Catalyst: 1 part

Nano silicon dioxide: 10 parts

3-(Methacryloyloxy)propyltrimethoxysilane: 1 part

3-Aminopropylmethyldiethoxysilane: 1 part

Triphenylvinylsilane: 1 part

The catalyst is triethylenediamine.

Its preparation method is:

Step 1: Mix 50 parts of isocyanate and 30 parts of ethylene glycol, and heat at 50°C for 1 hour to obtain prepolymer A;

Step 2: Mix 30 parts of isocyanate with 20 parts of ethylene glycol and 10 parts of glycerol, and heat at 50°C for 40 minutes to obtain prepolymer B;

Step 3: Take 20 parts of isocyanate, 10 parts of ethylene glycol, (1S,2S)-2-amino-1-(4-nitrophenyl)propane-1,3-diol, control the temperature at 40°C, and keep warm for 2 hours, to obtain prepolymer C;

Step 4: Mix prepolymer A, prepolymer B, and prepolymer C, stir at the same time for 30 minutes, then raise the temperature to 110°C, and react for 1 to 2 hours to obtain prepolymer D;

Step 5: Mix and fill the prepolymer D with the catalyst and nano-silica into a container, keep the temperature at 80°C, and finally obtain the polyurethane elastomer masterbatch, and add the masterbatch into a wire drawing machine to draw into fibers.

Comparative example two

Toluene-2,4-diisocyanate: 100 parts

Ethylene glycol: 60 parts

Glycerol: 10 parts

(1S,2S)-2-Amino-1-(4-nitrophenyl)propane-1,3-diol: 10 parts

Catalyst: 1 part

Nano silicon dioxide: 10 parts

5 parts polyether mixture

Described polyether mixture comprises following composition by weight:

1,2-propanediol-1-monobutyl ether: 2 parts

Hydroquinone dihydroxyethyl ether: 7 parts

Oxyfluorfen: 1 part.

The catalyst is triethylenediamine.

Its preparation method is:

Step 1: Mix 50 parts of isocyanate and 30 parts of ethylene glycol, and heat at 50°C for 1 hour to obtain prepolymer A;

Step 2: Mix 30 parts of isocyanate with 20 parts of ethylene glycol and 10 parts of glycerol, and heat at 50°C for 40 minutes to obtain prepolymer B;

Step 3: Take 20 parts of isocyanate, 10 parts of ethylene glycol, (1S,2S)-2-amino-1-(4-nitrophenyl)propane-1,3-diol, control the temperature at 40°C, and keep warm for 2 hours, to obtain prepolymer C;

Step 4: Mix prepolymer A, prepolymer B, and prepolymer C, stir at the same time for 30 minutes, then raise the temperature to 110°C, and react for 1 to 2 hours to obtain prepolymer D;

Step 5: Mix and fill the prepolymer D with the catalyst, nano-silica, and polyether mixture into a container, keep the temperature at 80°C, and finally obtain polyurethane elastomer masterbatch, and add the masterbatch into a wire drawing machine to draw into fibers.

Comparative example three

Toluene-2,4-diisocyanate: 100 parts

Ethylene glycol: 60 parts

Glycerol: 10 parts

(1S,2S)-2-Amino-1-(4-nitrophenyl)propane-1,3-diol: 10 parts

Catalyst: 1 part

Nano silicon dioxide: 10 parts

Oxyfluorfen: 1 part.

The catalyst is triethylenediamine.

Its preparation method is:

Step 1: Mix 50 parts of isocyanate and 30 parts of ethylene glycol, and heat at 50°C for 1 hour to obtain prepolymer A;

Step 2: Mix 30 parts of isocyanate with 20 parts of ethylene glycol and 10 parts of glycerol, and heat at 50°C for 40 minutes to obtain prepolymer B;

Step 3: Take 20 parts of isocyanate, 10 parts of ethylene glycol, (1S,2S)-2-amino-1-(4-nitrophenyl)propane-1,3-diol, control the temperature at 40°C, and keep warm for 2 hours, to obtain prepolymer C;

Step 4: Mix prepolymer A, prepolymer B, and prepolymer C, stir at the same time for 30 minutes, then raise the temperature to 110°C, and react for 1 to 2 hours to obtain prepolymer D;

Step 5: Mix and fill the prepolymer D with the catalyst, nano-silica, and polyether mixture into a container, keep the temperature at 80°C, and finally obtain polyurethane elastomer masterbatch, and add the masterbatch into a wire drawing machine to draw into fibers.

Fibers with a diameter of 1 mm were produced.

Test 1: Perform performance tests on the overall material at 20°C and -20°C.

In the present invention, polyurethane and diol compounds are used as the subject of polymerization to obtain polyurethane polymers. In the selection of polyurethane, toluene-2,4-diisocyanate, 2-(tert-butyl)phenylisocyanate, 2 , the mixture of 6-cresyl diisocyanate, wherein based on toluene-2,4-diisocyanate, the added 2-(tert-butyl)phenyl isocyanate, 2,6-cresyl diisocyanate can further Improve the mechanical properties of the overall material in cold regions.

At the same time, in the selection of diol compounds, ethylene glycol, glycerol, (1S,2S)-2-amino-1-(4-nitrophenyl)propane-1,3-diol is selected, and ethylene glycol Alcohol is the main body and participates in the polymerization reaction. At the same time, glycerol can adjust the molecular structure of the overall polymer to form a three-dimensional network structure. At the same time, (1S,2S)-2-amino-1-(4-nitrophenyl)propane- The addition of 1,3-diol can improve the UV resistance of the overall material.

As a commonly used filler material, nano-silica is an inorganic material, and its performance is less affected by temperature, which can improve the mechanical strength of the overall material.

3-(methacryloyloxy)propyltrimethoxysilane, 3-aminopropylmethyldiethoxysilane,

Triphenylvinylsilane can fully guarantee the elastic performance of the overall material in cold regions, and the polyether mixture added at the same time can improve the cold resistance of the material, 1,2-propylene glycol-1-monobutyl ether, hydroquinone dihydroxy Ethyl ether and oxyfluorfen can enhance the intermolecular force of the chain segment, and with 3-(methacryloyloxy)propyltrimethoxysilane, 3-aminopropylmethyldiethoxysilane, Triphenylvinylsilane creates a synergistic effect that guarantees elasticity in cold conditions.

The above descriptions are only preferred implementations of the present invention, and the scope of protection of the present invention is not limited to the above-mentioned embodiments, and all technical solutions under the idea of the present invention belong to the scope of protection of the present invention. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims (4)

1. A kind of 1. cold-resistant polyurethane fiber material of swimming suit, it is characterised in that：

   Isocyanates：100 parts

   Ethylene glycol：60 parts

   Glycerine：10 parts

   (1S, 2S) -2- amino -1- (4- nitrobenzene) propane -1,3- glycol：10 parts

   Catalyst：1 part

   Nano silicon：10 parts

   3- (methacryloxypropyl) propyl trimethoxy silicane：1 part

   3- aminopropyltriethoxy diethoxy silanes：1 part

   Triphenyl vinyl silane：1 part

   5 parts of polyether mixture

   The polyether mixture forms including following parts by weight：

   1,2- propane diols -1- monobutyl ethers：2 parts

   Hydroquinone two hydroxy ethyl ether：7 parts

   Oxyfluorfen：1 part.
2. A kind of 2. cold-resistant polyurethane fiber material of swimming suit according to claim 1, it is characterised in that：The catalyst is Triethylene diamine.
3. A kind of 3. cold-resistant polyurethane fiber material of swimming suit according to claim 2, it is characterised in that：The isocyanates Formed including following parts by weight：

   Toluene-2,4-diisocyanate, 4- diisocyanate：80 parts

   2- (tert-butyl group) phenyl isocyanate：15 parts

   2,6- toluene-2,4-diisocyanates：5 parts.
4. A kind of 4. swimming suit polyurethane fiber material that resists cold according to claims 1 to 3, it is characterised in that：Its preparation side Method is：

   Step 1：50 parts of isocyanates and 30 parts of ethylene glycol are mixed, is heated 1 hour under the conditions of 50 DEG C, obtains performed polymer A；

   Step 2：30 parts of isocyanates and 20 parts of ethylene glycol, 10 parts of glycerine are mixed, heated 40 minutes under the conditions of 50 DEG C, Obtain performed polymer B；

   Step 3：By 20 parts of isocyanates, 10 parts of ethylene glycol, (1S, 2S) -2- amino -1- (4- nitrobenzene) propane -1,3- two Alcohol, control temperature are incubated 2 hours, obtain performed polymer C at 40 DEG C；

   Step 4：Performed polymer A, performed polymer B, performed polymer C are mixed, while 110 DEG C are warming up to after stirring 30 minutes, reaction 1 ~ 2 hour, obtain performed polymer D；

   Step 5：Performed polymer D is mixed into filling into low pressure vessel with catalyst, nano silicon, polyether mixture, kept Temperature at 80 DEG C, after obtain polyurethane elastomer master batch, wire drawing is added in wire drawing machine into fiber by master batch.