阅读说明：本技术 一种抗紫外型微穴中空纤维的制备方法 (Preparation method of uvioresistant micro-cavity hollow fiber ) 是由 王萍萍 于 2021-08-19 设计创作，主要内容包括：本发明公开了一种抗紫外型微穴中空纤维的制备方法,涉及高分子材料技术领域,包括以下步骤：S1：共混,将重量百分比为10％-40％的常规聚酯、1％-15％的易碱解聚酯和5％-20％的抗紫外聚酯抽入到真空转鼓中混合均匀,混合时间在0.5h-1.5h,温度为60℃-80℃,S2：纺丝,在纺丝前中加入功能改性母粒,经中空型喷丝板熔融共混纺丝,制得粗品抗紫外型微穴中空纤维,S3：冷却,将粗品抗紫外型微穴中空纤维在醇水中凝固浴中冷却,S4：提纯,将冷却后的粗品抗紫外型微穴中空纤维用滤纸包好,以蒸馏水为抽提剂,沸腾回流24小时。本发明中,通过将所得的纤维织成织物既能使力学性能优良又能充分保障纤维在各紫外波段的抗紫外能力,且具有较好的吸湿快干功能。(The invention discloses a preparation method of an uvioresistant micro-cavity hollow fiber, which relates to the technical field of high polymer materials and comprises the following steps: s1: blending, namely pumping 10 to 40 weight percent of conventional polyester, 1 to 15 weight percent of easy-to-alkaline-hydrolysis polyester and 5 to 20 weight percent of uvioresistant polyester into a vacuum rotary drum, and uniformly mixing for 0.5 to 1.5 hours at the temperature of between 60 and 80 ℃, S2: spinning, adding functional modified master batch before spinning, and performing melt blending spinning through a hollow spinneret to obtain a crude uvioresistant micro-cavity hollow fiber, S3: cooling, namely cooling the crude uvioresistant type micro-cavity hollow fiber in a condensation bath in alcohol water, wherein the weight ratio of S4: purifying, wrapping the cooled crude uvioresistant type micro-cavity hollow fiber with filter paper, taking distilled water as an extracting agent, and boiling and refluxing for 24 hours. According to the invention, the obtained fiber is woven into a fabric, so that the fabric has excellent mechanical properties, can fully ensure the ultraviolet resistance of the fiber in each ultraviolet band, and has a good moisture absorption and quick drying function.)

1. The preparation method of the uvioresistant micro-cavity hollow fiber is characterized by comprising the following steps of:

s1: blending, namely pumping 10 to 40 weight percent of conventional polyester, 1 to 15 weight percent of easy-alkaline hydrolysis polyester and 5 to 20 weight percent of uvioresistant polyester into a vacuum rotary drum to be uniformly mixed, wherein the mixing time is 0.5 to 1.5 hours, and the temperature is 60 to 80 ℃;

s2: spinning, adding the functional modified master batch before spinning, and performing melt blending spinning through a hollow spinneret plate to obtain a crude uvioresistant type microcellular hollow fiber;

s3: cooling, namely cooling the crude uvioresistant type micro-cavity hollow fiber in a condensation bath in alcohol water;

s4: and (3) purifying, namely wrapping the cooled crude uvioresistant type micro-cavity hollow fiber with filter paper, boiling and refluxing for 24 hours by using distilled water as an extracting agent to completely remove residual pore-foaming agent and solvent, taking out, and drying in an oven to constant weight to obtain the pure finished uvioresistant type micro-cavity hollow fiber.

2. The method for preparing uvioresistant micro-cavity hollow fiber according to claim 1, wherein the functional modified master batch is prepared from the following components in parts by weight: one or more than two blending type polyester functional modified master batches of far infrared modified master batches and ultraviolet resistant modified master batches, wherein the particle size of the active ingredient powder in the master batches is controlled to be 0.1-0.8 mu m.

3. The method for preparing an uvioresistant type micropocket hollow fiber according to claim 1, wherein the spinneret plate can be selected from a double C, a triple C or a trilobe in micropore shape.

4. The method for preparing uvioresistant micro-cavity hollow fiber according to claim 1, wherein the blending spinning speed is controlled between 2500m/min and 4000 m/min.

5. The method for preparing uvioresistant microvoid hollow fibers according to claim 1, wherein the conventional polyester is; dimethyl terephthalate with a molecular weight of 18000-20000.

6. The method for preparing an uvioresistant micro-cavity hollow fiber according to claim 1, wherein the easy alkaline hydrolysis polyester is a PET copolymer with benzene sulfonate groups introduced into the polyester molecular chains, and the uvioresistant polyester is prepared by adding and modifying polyester by using barium thiosulfonate coated nano basic zinc carbonate.

Technical Field

The invention relates to the technical field of high polymer materials, in particular to a preparation method of an uvioresistant micro-cavity hollow fiber.

Background

The quality requirements of people on textiles are gradually improved, the environmental protection performance and the functionality become two major aspects which are increasingly valued by people, the traditional textiles cannot meet the requirements of the modern market, and the research and development of functional fibers become the main development direction of the modern fibers.

In recent years, with the increase of awareness of health, ultraviolet radiation caused by the destruction of the ozone layer has attracted much attention. Ultraviolet light can be classified according to wavelength: long-wave ultraviolet UVA (320-400 nm), medium-wave ultraviolet UVB (280-320 nm) and short-wave ultraviolet UVC (<280 nm). Excessive uv radiation can accelerate skin aging and even cause cancer. The existing textile fiber does not have good ultraviolet resistance function, and the preparation method of the ultraviolet resistance type micro-cavity hollow fiber is provided.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a preparation method of an uvioresistant micro-cavity hollow fiber.

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

a preparation method of an uvioresistant micro-cavity hollow fiber comprises the following steps:

s1: blending, namely pumping 10 to 40 weight percent of conventional polyester, 1 to 15 weight percent of easy-alkaline hydrolysis polyester and 5 to 20 weight percent of uvioresistant polyester into a vacuum rotary drum to be uniformly mixed, wherein the mixing time is 0.5 to 1.5 hours, and the temperature is 60 to 80 ℃;

s2: spinning, adding the functional modified master batch before spinning, and performing melt blending spinning through a hollow spinneret plate to obtain a crude uvioresistant type microcellular hollow fiber;

s3: cooling, namely cooling the crude uvioresistant type micro-cavity hollow fiber in a condensation bath in alcohol water;

s4: and (3) purifying, namely wrapping the cooled crude uvioresistant type micro-cavity hollow fiber with filter paper, boiling and refluxing for 24 hours by using distilled water as an extracting agent to completely remove residual pore-foaming agent and solvent, taking out, and drying in an oven to constant weight to obtain the pure finished uvioresistant type micro-cavity hollow fiber.

Preferably, the functional modified master batch is: one or more than two blending type polyester functional modified master batches of far infrared modified master batches and ultraviolet resistant modified master batches, wherein the particle size of the active ingredient powder in the master batches is controlled to be 0.1-0.8 mu m.

Preferably, the spinneret plate can be selected from a double C, a triple C or a triple leaf shape.

Preferably, the blending spinning speed is controlled between 2500m/min and 4000 m/min.

Preferably, the conventional polyester is; dimethyl terephthalate with a molecular weight of 18000-20000.

Preferably, the easy alkaline hydrolysis polyester is a PET copolymer with a benzene sulfonate group introduced into a polyester molecular chain, and the uvioresistant polyester is prepared by adding and modifying polyester by using barium thiosulfonate-coated nano basic zinc carbonate.

The invention has the beneficial effects that:

1. the obtained fiber is woven into fabric, so that the mechanical property is excellent, the ultraviolet resistance of the fiber in each ultraviolet band can be fully guaranteed, and the fabric has good moisture absorption and quick drying functions.

Detailed Description

The present invention will be further described with reference to the following examples.

Example 1

A preparation method of an uvioresistant micro-cavity hollow fiber comprises the following steps:

s1: blending, namely pumping 10 weight percent of dimethyl terephthalate, 1 weight percent of easy-alkaline hydrolysis polyester and 5 weight percent of uvioresistant polyester into a vacuum rotary drum to be uniformly mixed, wherein the mixing time is 0.5h, and the temperature is 60 ℃;

s2: spinning, adding the functional modified master batch before spinning, and performing melt blending spinning through a hollow spinneret plate to obtain a crude uvioresistant type microcellular hollow fiber;

s3: cooling, namely cooling the crude uvioresistant type micro-cavity hollow fiber in a condensation bath in alcohol water;

s4: and (3) purifying, namely wrapping the cooled crude uvioresistant type micro-cavity hollow fiber with filter paper, boiling and refluxing for 24 hours by using distilled water as an extracting agent to completely remove residual pore-foaming agent and solvent, taking out, and drying in an oven to constant weight to obtain the pure finished uvioresistant type micro-cavity hollow fiber.

And (3) performance testing: the fibers were processed into fabrics and tested according to the GB/T18830-2002 method. The test results are shown in Table 1.

Example 2

A preparation method of an uvioresistant micro-cavity hollow fiber comprises the following steps:

s1: blending, namely pumping 20 weight percent of dimethyl terephthalate, 5 weight percent of easy-alkaline hydrolysis polyester and 8 weight percent of uvioresistant polyester into a vacuum rotary drum to be uniformly mixed, wherein the mixing time is 1 hour, and the temperature is 70 ℃;

s2: spinning, adding the functional modified master batch before spinning, and performing melt blending spinning through a hollow spinneret plate to obtain a crude uvioresistant type microcellular hollow fiber;

s3: cooling, namely cooling the crude uvioresistant type micro-cavity hollow fiber in a condensation bath in alcohol water;

s4: and (3) purifying, namely wrapping the cooled crude uvioresistant type micro-cavity hollow fiber with filter paper, boiling and refluxing for 24 hours by using distilled water as an extracting agent to completely remove residual pore-foaming agent and solvent, taking out, and drying in an oven to constant weight to obtain the pure finished uvioresistant type micro-cavity hollow fiber.

And (3) performance testing: the fibers were processed into fabrics and tested according to the GB/T18830-2002 method. The test results are shown in Table 1.

Example 3

A preparation method of an uvioresistant micro-cavity hollow fiber comprises the following steps:

s1: blending, namely pumping 30 weight percent of dimethyl terephthalate, 10 weight percent of easy-alkaline hydrolysis polyester and 15 weight percent of uvioresistant polyester into a vacuum rotary drum to be uniformly mixed, wherein the mixing time is 1.5 hours, and the temperature is 70 ℃;

s2: spinning, adding the functional modified master batch before spinning, and performing melt blending spinning through a hollow spinneret plate to obtain a crude uvioresistant type microcellular hollow fiber;

s3: cooling, namely cooling the crude uvioresistant type micro-cavity hollow fiber in a condensation bath in alcohol water;

s4: and (3) purifying, namely wrapping the cooled crude uvioresistant type micro-cavity hollow fiber with filter paper, boiling and refluxing for 24 hours by using distilled water as an extracting agent to completely remove residual pore-foaming agent and solvent, taking out, and drying in an oven to constant weight to obtain the pure finished uvioresistant type micro-cavity hollow fiber.

And (3) performance testing: the fibers were processed into fabrics and tested according to the GB/T18830-2002 method. The test results are shown in Table 1.

Example 4

A preparation method of an uvioresistant micro-cavity hollow fiber comprises the following steps:

s1: blending, namely pumping 10 weight percent of dimethyl terephthalate, 15 weight percent of easy-alkaline hydrolysis polyester and 20 weight percent of uvioresistant polyester into a vacuum rotary drum to be uniformly mixed, wherein the mixing time is 1.5 hours, and the temperature is 80 ℃;

s2: spinning, adding the functional modified master batch before spinning, and performing melt blending spinning through a hollow spinneret plate to obtain a crude uvioresistant type microcellular hollow fiber;

s3: cooling, namely cooling the crude uvioresistant type micro-cavity hollow fiber in a condensation bath in alcohol water;

s4: and (3) purifying, namely wrapping the cooled crude uvioresistant type micro-cavity hollow fiber with filter paper, boiling and refluxing for 24 hours by using distilled water as an extracting agent to completely remove residual pore-foaming agent and solvent, taking out, and drying in an oven to constant weight to obtain the pure finished uvioresistant type micro-cavity hollow fiber.

And (3) performance testing: the fibers were processed into fabrics and tested according to the GB/T18830-2002 method. The test results are shown in Table 1.

Table 1 results of performance testing

As can be seen from Table 1, the mechanical properties of the fiber spun by the invention are greatly improved.

Therefore, the embodiment 2 provided by the invention is the best embodiment, and the obtained fibers are woven into a fabric, so that the fabric has excellent mechanical property, can fully ensure the ultraviolet resistance of the fibers in each ultraviolet band, and has better moisture absorption and quick drying functions

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.