Method for preparing light tent cloth

Abstract

The invention relates to a method for preparing a light tent cloth. The light tent cloth is prepared by dyeing, warping, weaving modified polyester industrial yarns and calendering and laminating witha TPU film, wherein the modified polyester industrial yarns are prepared by carrying out solid-phase polycondensation tackifying, melting, metering, extruding, cooling, oiling, stretching, heat setting, relaxation heat treatment and winding on a modified polyester melt; the method for preparing the modified polyester before the solid-phase polycondensation tackifying comprises the following stepsof: uniformly mixing terephthalic acid, ethylene glycol and dihydric alcohol with trimethylsilyl side groups, carrying out esterification reaction and polycondensation reaction sequentially, whereinthe relaxation heat treatment refers to that the modified polyester industrial yarns pass through a certain temperature space in a proper state of relaxation, the proper state of relaxation refers tothat the overfeed rate of winding is 3.0-5.0 %, the certain temperature is 200-240 DEG C; the preparation method is simple, the cost is low, and the prepared light tent cloth has the advantages of good tensile strength, high peel strength, low thermal shrinkage and wide application range.

Description

technical field

[0001] The invention belongs to the technical field of polyester fibers, and relates to a light tent cloth and a preparation method thereof. Background technique

[0002] Tents may be the earliest textiles used as building materials. They are simple and light, and have the functions of wind, rain, snow, cold, dust and mosquitoes. They isolate an independent and safe personal space in the wild environment. . Today's development of tourism promotes the development of tourism textiles, which directly leads to a substantial increase in the sales of tourism tents. The production of tents and related supplies has gradually shifted from the United States, Europe, South Korea and Taiwan Province of my country to the coastal areas of my country, but the overall level of domestic fabrics and finishing is not high, and most of the middle and high-end tent fabrics still need to be imported. Materials, new technology, new process, improve product deep processing technolo...

Examples

Embodiment 1

[0062] A kind of preparation method of light tent cloth, concrete steps are as follows:

[0063] (1) prepare modified polyester;

[0064] (1.1) Esterification reaction;

[0065] Prepare a slurry of terephthalic acid, ethylene glycol and 3-trimethylsilyl-1,2-propanediol with a molar ratio of 1:1.2:0.03, add antimony trioxide, titanium dioxide and triphenyl phosphate and mix evenly, The esterification reaction is carried out under pressure in a nitrogen atmosphere, the pressurized pressure is 0.1MPa, and the temperature of the esterification reaction is 250°C. When the amount of water distilled out in the esterification reaction reaches 93% of the theoretical value, it is the end point of the esterification reaction. The additions of antimony trioxide, titanium dioxide and triphenyl phosphate are respectively 0.03wt%, 0.20wt% and 0.02wt% of the terephthalic acid addition;

[0066] (1.2) polycondensation reaction;

[0067] After the esterification reaction is over, start the p...

Embodiment 2

[0090] A kind of preparation method of light tent cloth, concrete steps are as follows:

[0091] (1) prepare modified polyester;

[0092] (1.1) Preparation of 3-trimethylsilyl-3-methyl-1,2-propanediol;

[0093] (1.1.1) Mix 3-trimethylsilyl-3-methylpropene, peracetic acid and dichloromethane at a molar ratio of 1:5:10, and react at a temperature of 35°C for 5 hours with stirring , the solvent is removed after the reaction, and trimethylsilylpropylene epoxide is obtained through purification and refinement;

[0094] (1.1.2) Mix water, concentrated sulfuric acid and trimethylsilyl propylene epoxide, heat it in a water bath to 80°C under stirring conditions, keep it warm for 10 minutes, cool to room temperature after the reaction, neutralize, distill, separate and purify Obtain 3-trimethylsilyl-3-methyl-1,2-propanediol as shown in formula (I), R in formula (I) is-CH(CH 3 )-, concentrated sulfuric acid is the sulfuric acid that mass concentration is 70%, when reaction starts, th...

Embodiment 3

[0111] A kind of preparation method of light tent cloth, concrete steps are as follows:

[0112] (1) prepare modified polyester;

[0113] (1.1) Preparation of 3-trimethylsilyl-3-methyl-1,2-propanediol;

[0114] (1.1.1) Mix 3-trimethylsilyl-3-methylpropene, peracetic acid and dichloromethane at a molar ratio of 1:10:15, and react at a temperature of 40°C for 8 hours with stirring , the solvent is removed after the reaction, and trimethylsilylpropylene epoxide is obtained through purification and refinement;

[0115] (1.1.2) Mix water, concentrated sulfuric acid and trimethylsilyl propylene epoxide, heat it in a water bath to 85°C under stirring conditions, keep it warm for 15 minutes, cool to room temperature after the reaction, neutralize, distill, separate and purify Obtain 3-trimethylsilyl-3-methyl-1,2-propanediol as shown in formula (I), R in formula (I) is-CH(CH 3 )-, concentrated sulfuric acid is the sulfuric acid that mass concentration is 70%, when reaction starts, t...

technical field

[0001] The invention belongs to the technical field of polyester fibers, and relates to a light tent cloth and a preparation method thereof. Background technique

[0002] Tents may be the earliest textiles used as building materials. They are simple and light, and have the functions of wind, rain, snow, cold, dust and mosquitoes. They isolate an independent and safe personal space in the wild environment. . Today's development of tourism promotes the development of tourism textiles, which directly leads to a substantial increase in the sales of tourism tents. The production of tents and related supplies has gradually shifted from the United States, Europe, South Korea and Taiwan Province of my country to the coastal areas of my country, but the overall level of domestic fabrics and finishing is not high, and most of the middle and high-end tent fabrics still need to be imported. Materials, new technology, new process, improve product deep processing technolo...

Examples

Embodiment 1

[0062] A kind of preparation method of light tent cloth, concrete steps are as follows:

[0063] (1) prepare modified polyester;

[0064] (1.1) Esterification reaction;

[0065] Prepare a slurry of terephthalic acid, ethylene glycol and 3-trimethylsilyl-1,2-propanediol with a molar ratio of 1:1.2:0.03, add antimony trioxide, titanium dioxide and triphenyl phosphate and mix evenly, The esterification reaction is carried out under pressure in a nitrogen atmosphere, the pressurized pressure is 0.1MPa, and the temperature of the esterification reaction is 250°C. When the amount of water distilled out in the esterification reaction reaches 93% of the theoretical value, it is the end point of the esterification reaction. The additions of antimony trioxide, titanium dioxide and triphenyl phosphate are respectively 0.03wt%, 0.20wt% and 0.02wt% of the terephthalic acid addition;

[0066] (1.2) polycondensation reaction;

[0067] After the esterification reaction is over, start the p...

Embodiment 2

[0090] A kind of preparation method of light tent cloth, concrete steps are as follows:

[0091] (1) prepare modified polyester;

[0092] (1.1) Preparation of 3-trimethylsilyl-3-methyl-1,2-propanediol;

[0093] (1.1.1) Mix 3-trimethylsilyl-3-methylpropene, peracetic acid and dichloromethane at a molar ratio of 1:5:10, and react at a temperature of 35°C for 5 hours with stirring , the solvent is removed after the reaction, and trimethylsilylpropylene epoxide is obtained through purification and refinement;

[0094] (1.1.2) Mix water, concentrated sulfuric acid and trimethylsilyl propylene epoxide, heat it in a water bath to 80°C under stirring conditions, keep it warm for 10 minutes, cool to room temperature after the reaction, neutralize, distill, separate and purify Obtain 3-trimethylsilyl-3-methyl-1,2-propanediol as shown in formula (I), R in formula (I) is-CH(CH 3 )-, concentrated sulfuric acid is the sulfuric acid that mass concentration is 70%, when reaction starts, th...

Embodiment 3

[0111] A kind of preparation method of light tent cloth, concrete steps are as follows:

[0112] (1) prepare modified polyester;

[0113] (1.1) Preparation of 3-trimethylsilyl-3-methyl-1,2-propanediol;

[0114] (1.1.1) Mix 3-trimethylsilyl-3-methylpropene, peracetic acid and dichloromethane at a molar ratio of 1:10:15, and react at a temperature of 40°C for 8 hours with stirring , the solvent is removed after the reaction, and trimethylsilylpropylene epoxide is obtained through purification and refinement;

[0115] (1.1.2) Mix water, concentrated sulfuric acid and trimethylsilyl propylene epoxide, heat it in a water bath to 85°C under stirring conditions, keep it warm for 15 minutes, cool to room temperature after the reaction, neutralize, distill, separate and purify Obtain 3-trimethylsilyl-3-methyl-1,2-propanediol as shown in formula (I), R in formula (I) is-CH(CH 3 )-, concentrated sulfuric acid is the sulfuric acid that mass concentration is 70%, when reaction starts, t...

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