阅读说明：本技术 一种用于海底光缆的阻水纱制造方法 (Manufacturing method of water-blocking yarn for submarine optical cable ) 是由 郝建华 于 2020-12-25 设计创作，主要内容包括：本发明公开了一种用于海底光缆的阻水纱制造方法,包括以下步骤：备原材料、配置阻水溶液、阻水胶液和涂层胶液；阻水纱基料的准备；浸入阻水溶液；浸入阻水胶液；一次刮浆；一次烘干；浸入涂层胶液；二次刮浆；二次烘干。该用于海底光缆的阻水纱制造方法制造的阻水纱的阻水密封性能高、吸水速度快、膨胀率高、抗张力强、对线缆不产生相容性影响,耐热性及化学稳定性,无腐蚀性等有点,在光缆制造过程中可省去填充油膏,阻水带,扎纱等材料；该阻水纱使用方便,工艺简单,结构稳定,阻水可靠,环境清洁,不产生油性污染,主要适用于防水型通信电缆、干式光缆的缆芯包扎,交联聚乙烯绝缘电力电缆尤其是对海底光电缆使用阻水纱最为理想。(The invention discloses a method for manufacturing water-blocking yarns for submarine optical cables, which comprises the following steps: preparing raw materials, preparing a water-blocking solution, a water-blocking glue solution and a coating glue solution; preparing a water-blocking yarn base material; immersing in a water-blocking solution; immersing into water-blocking glue solution; primary pulp scraping; primary drying; dipping into coating glue solution; secondary pulp scraping; and (5) secondary drying. The water-blocking yarn manufactured by the method for manufacturing the water-blocking yarn for the submarine optical cable has the advantages of high water-blocking sealing performance, high water absorption speed, high expansion rate, strong tension resistance, no compatibility influence on the cable, heat resistance, chemical stability, no corrosiveness and the like, and materials such as filling ointment, a water-blocking tape, tying yarn and the like can be omitted in the manufacturing process of the optical cable; the water-blocking yarn is convenient to use, simple in process, stable in structure, reliable in water blocking, clean in environment and free of oily pollution, is mainly suitable for wrapping cable cores of waterproof communication cables and dry optical cables, and is most ideal for crosslinked polyethylene insulated power cables, especially submarine optical cables.)

1. A method for manufacturing water-blocking yarns for submarine optical cables is characterized by comprising the following steps:

(1) preparing raw materials, preparing a water-blocking solution, a water-blocking glue solution and a coating glue solution:

the raw materials are polyester fiber non-woven fabric and fiber bundles containing high-rate water-absorbent resin;

the water-blocking solution comprises deionized water, acrylic acid, sodium hydroxide liquid, hydroxyethyl acrylate, an antistatic agent, a cross-linking agent and an initiator;

the water-blocking glue solution comprises deionized water and polyacrylate emulsion;

the coating glue solution comprises deionized water, polyether polyol ester, diisocyanate, a cationic cross-linking agent and a chain terminator.

(2) Preparing a water-blocking yarn base material: attaching fiber bundles containing high-rate water-absorbing resin to polyester fiber non-woven fabric to form a water-blocking yarn base material;

(3) immersing in a water-blocking solution: putting the prepared water-blocking yarn base material into a water-blocking solution for soaking;

(4) immersing into a water-blocking glue solution: after the water-blocking yarn base material is thoroughly soaked, directly putting the water-blocking yarn base material into water-blocking glue solution for soaking, and soaking the water-blocking yarn base material in the water-blocking glue solution;

(5) primary pulp scraping: carrying out size scraping work on the water-blocking yarn base material taken out from the water-blocking glue solution so as to remove redundant water-blocking glue solution adhered to the water-blocking yarn base material;

(6) primary drying: drying the water-blocking yarn base material after the water-blocking yarn base material is subjected to pulp scraping and cleaning;

(7) dipping into coating glue solution: putting the dried water-blocking yarn base material into a coating glue solution for soaking;

(8) secondary pulp scraping: carrying out size scraping work on the water-blocking yarn base material taken out from the coating glue solution so as to remove redundant coating glue solution adhered to the water-blocking yarn base material;

(9) secondary drying: and taking out and drying to obtain the water-blocking yarn for the submarine optical cable.

2. A method of manufacturing water-blocking yarn for submarine optical cables according to claim 1, wherein: and (3) forming a water-blocking yarn base material between the polyester fiber non-woven fabric in the step (2) and the fiber bundle containing the high-rate water-absorbing resin in a weaving manner.

3. A method of manufacturing water-blocking yarn for submarine optical cables according to claim 1, wherein: and (3) soaking the water-blocking yarn base material soaked in the water-blocking solution in the step (4) in the water-blocking glue solution for 1 min.

4. A method of manufacturing water-blocking yarn for submarine optical cables according to claim 1, wherein: and (3) preheating the water-blocking yarn base material soaked with the water-blocking glue solution in the step (6) at 100-120 ℃ for 30-40 s, and then curing the water-blocking yarn base material under the drying condition of 140-170 ℃, wherein the forming speed is 15-20 m/min.

5. A method of manufacturing water-blocking yarn for submarine optical cables according to claim 1, wherein: and (3) soaking the water-blocking yarn base material in the coating glue solution in the step (7) for 20 s.

6. A method of manufacturing water-blocking yarn for submarine optical cables according to claim 1, wherein: the drying temperature in the step (9) is 130-180 ℃.

Technical Field

The invention relates to the technical field of water-blocking yarns, in particular to a method for manufacturing a water-blocking yarn for an undersea optical cable.

Background

Along with the rapid development of social economy, the attention degree of each district to the electric wire netting construction is higher and higher, and the variety of electric wire and cable is constantly enlarged, and the development trend is diversified, and under the normal conditions, the cable of optical cable and cable all lays in the environment of humidity shade, if the impaired condition takes place for the cable, inside moisture can get into the cable along the damage point, causes the influence to the optical cable. Water can cause a change in capacitance in the copper cable, reducing signal strength. Excessive pressure may be generated in the optical elements in the optical cable, which greatly affects the transmission of light. Therefore, the exterior of the cable is wrapped with a water blocking material.

The research on the water resistance of the electric wire and the electric cable is particularly rapid in recent years, the filling of the interior of the electric cable by the water-resistant yarn also becomes an important mode for the water resistance of the electric cable, the water-resistant yarn has strong water absorption capacity and is generally applied to the coating protection of the electric cable and the optical cable, and the water-resistant yarn is mainly used as an internal filler of the optical cable and the electric cable in recent technical development and mainly plays a role in preventing water on the outer wall of the communication cable and the optical fiber cable from entering the interior of the electric cable.

Some optical cables are applied to special environments, for example, optical cables used in the seabed need to use some special optical cables, so that the use requirement of the submarine optical cables is continuously improved, meanwhile, due to the particularity of the submarine environment, the requirement on water-blocking yarns in the submarine optical cables is also very high, the water-blocking yarns in the prior art have poor water-blocking tightness and poor water-blocking effect, and meanwhile, for the submarine environment, some water-blocking yarns have poor compression resistance and cannot be effectively applied to the submarine high-pressure environment, so that a water-blocking yarn manufacturing method for the submarine optical cables is provided, so that the problems provided in the prior art are solved.

Disclosure of Invention

The present invention is directed to a method for manufacturing water-blocking yarn for submarine optical cables, which solves the above-mentioned problems of the background art in the market.

In order to achieve the purpose, the invention provides the following technical scheme: a method for manufacturing water-blocking yarns for submarine optical cables comprises the following steps:

(1) preparing raw materials, preparing a water-blocking solution, a water-blocking glue solution and a coating glue solution:

the raw materials are polyester fiber non-woven fabric and fiber bundles containing high-rate water-absorbent resin;

the water-blocking solution comprises deionized water, acrylic acid, sodium hydroxide liquid, hydroxyethyl acrylate, an antistatic agent, a cross-linking agent and an initiator;

the water-blocking glue solution comprises deionized water and polyacrylate emulsion;

the coating glue solution comprises deionized water, polyether polyol ester, diisocyanate, a cationic cross-linking agent and a chain terminator.

(2) Preparing a water-blocking yarn base material: attaching fiber bundles containing high-rate water-absorbing resin to polyester fiber non-woven fabric to form a water-blocking yarn base material;

(3) immersing in a water-blocking solution: putting the prepared water-blocking yarn base material into a water-blocking solution for soaking;

(4) immersing into a water-blocking glue solution: after the water-blocking yarn base material is thoroughly soaked, directly putting the water-blocking yarn base material into water-blocking glue solution for soaking, and soaking the water-blocking yarn base material in the water-blocking glue solution;

(5) primary pulp scraping: carrying out size scraping work on the water-blocking yarn base material taken out from the water-blocking glue solution so as to remove redundant water-blocking glue solution adhered to the water-blocking yarn base material;

(6) primary drying: drying the water-blocking yarn base material after the water-blocking yarn base material is subjected to pulp scraping and cleaning;

(7) dipping into coating glue solution: putting the dried water-blocking yarn base material into a coating glue solution for soaking;

(8) secondary pulp scraping: carrying out size scraping work on the water-blocking yarn base material taken out from the coating glue solution so as to remove redundant coating glue solution adhered to the water-blocking yarn base material;

(9) secondary drying: and taking out and drying to obtain the water-blocking yarn for the submarine optical cable.

Preferably, the polyester fiber non-woven fabric in the step (2) and the fiber bundles containing the high-rate water-absorbent resin form a water-blocking yarn base material in a weaving manner.

Preferably, the water-blocking yarn base material soaked in the water-blocking solution in the step (4) is soaked in the water-blocking glue solution for 1 min.

Preferably, the water-blocking yarn base material soaked with the water-blocking glue solution in the step (6) is preheated for 30-40 s at 100-120 ℃, and then is cured under the drying condition of 140-170 ℃, and the forming speed is 15-20 m/min.

Preferably, the time for soaking the water-blocking yarn base material in the coating glue solution in the step (7) is 20 s.

Preferably, the drying temperature in the step (9) is 130-180 ℃.

Compared with the prior art, the invention has the beneficial effects that: the water-blocking yarn manufactured by the method for manufacturing the water-blocking yarn for the submarine optical cable has the advantages of high water-blocking sealing performance, high water absorption speed, high expansion rate, strong tension resistance, no compatibility influence on the cable, heat resistance, chemical stability, no corrosiveness and the like, and materials such as filling ointment, a water-blocking tape, tying yarn and the like can be omitted in the manufacturing process of the optical cable;

the water-blocking effect of the water-blocking yarn can be better increased through the distribution treatment of the water-blocking solution and the water-blocking glue solution, meanwhile, the falling of water-blocking powder on the water-blocking yarn can be reduced, and meanwhile, the coating glue solution is also arranged, so that the tensile resistance of the water-blocking yarn can be greatly improved, the water-blocking yarn can achieve higher water pressure resistance, and the falling of the water-blocking powder on the water-blocking yarn can be further reduced, so that the yarn entering the cable has more water-blocking powder, and the water-blocking cable has better water-blocking effect;

the water-blocking yarn is convenient to use, simple in process, stable in structure, reliable in water blocking, clean in environment and free of oily pollution, is mainly suitable for wrapping cable cores of waterproof communication cables and dry optical cables, and is most ideal for crosslinked polyethylene insulated power cables, especially submarine optical cables.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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.

Example one

The invention provides a technical scheme that: a method for manufacturing water-blocking yarns for submarine optical cables comprises the following steps:

(1) preparing raw materials, preparing a water-blocking solution, a water-blocking glue solution and a coating glue solution:

the raw materials are polyester fiber non-woven fabric and fiber bundles containing high-rate water-absorbent resin;

the water-blocking solution comprises deionized water, acrylic acid, sodium hydroxide liquid, hydroxyethyl acrylate, an antistatic agent, a cross-linking agent and an initiator;

the water-blocking glue solution comprises deionized water and polyacrylate emulsion;

the coating glue solution comprises deionized water, polyether polyol ester, diisocyanate, a cationic cross-linking agent and a chain terminator.

(2) Preparing a water-blocking yarn base material: attaching fiber bundles containing high-rate water-absorbing resin to polyester fiber non-woven fabric to form a water-blocking yarn base material, and combining the polyester fiber non-woven fabric and the fiber bundles containing the high-rate water-absorbing resin in a weaving manner;

(3) immersing in a water-blocking solution: putting the prepared water-blocking yarn base material into a water-blocking solution for soaking;

(4) immersing into a water-blocking glue solution: after the water-blocking yarn base materials are thoroughly soaked, directly putting the water-blocking yarn base materials into water-blocking glue solution for soaking, soaking the water-blocking yarn base materials soaked in the water-blocking glue solution for 1 min;

(5) primary pulp scraping: carrying out size scraping work on the water-blocking yarn base material taken out from the water-blocking glue solution so as to remove redundant water-blocking glue solution adhered to the water-blocking yarn base material;

(6) primary drying: carrying out drying work on the water-blocking yarn base material after scraping and cleaning, preheating the water-blocking yarn base material soaked with the water-blocking glue solution at 100-120 ℃ for 30-40 s, and curing at the drying condition of 140-170 ℃ at the forming speed of 15-20 m/min;

(7) dipping into coating glue solution: putting the dried water-blocking yarn base material into a coating glue solution for soaking, wherein the soaking time of the water-blocking yarn base material in the coating glue solution is 20 s;

(8) secondary pulp scraping: carrying out size scraping work on the water-blocking yarn base material taken out from the coating glue solution so as to remove redundant coating glue solution adhered to the water-blocking yarn base material;

(9) secondary drying: taking out and drying to obtain the water-blocking yarn for the submarine optical cable, wherein the drying temperature is 130-180 ℃.

Example two

A method for manufacturing water-blocking yarns for submarine optical cables comprises the following steps:

(1) preparing raw materials, preparing a water-blocking solution, a water-blocking glue solution and a coating glue solution:

the raw materials are polyester fiber non-woven fabric and fiber bundles containing high-rate water-absorbent resin;

the water-blocking solution comprises deionized water, acrylic acid, sodium hydroxide liquid, hydroxyethyl acrylate, an antistatic agent, a cross-linking agent and an initiator;

the water-blocking glue solution comprises deionized water and polyacrylate emulsion;

the coating glue solution comprises deionized water, polyether polyol ester, diisocyanate, a cationic cross-linking agent and a chain terminator.

(2) Preparing a water-blocking yarn base material: attaching fiber bundles containing high-rate water-absorbing resin to polyester fiber non-woven fabric to form a water-blocking yarn base material, and combining the polyester fiber non-woven fabric and the fiber bundles containing the high-rate water-absorbing resin in a weaving manner;

(3) immersing in a water-blocking solution: putting the prepared water-blocking yarn base material into a water-blocking solution for soaking;

(4) immersing into a water-blocking glue solution: after the water-blocking yarn base materials are thoroughly soaked, directly putting the water-blocking yarn base materials into water-blocking glue solution for soaking, soaking the water-blocking yarn base materials soaked in the water-blocking glue solution for 1 min;

(5) primary pulp scraping: carrying out size scraping work on the water-blocking yarn base material taken out from the water-blocking glue solution so as to remove redundant water-blocking glue solution adhered to the water-blocking yarn base material;

(6) primary drying: carrying out drying work on the water-blocking yarn base material after scraping and cleaning, preheating the water-blocking yarn base material soaked with the water-blocking glue solution at 100 ℃ for 40s, and curing at 140 ℃ under a drying condition, wherein the forming speed is 15 m/min;

(7) dipping into coating glue solution: putting the dried water-blocking yarn base material into a coating glue solution for soaking, wherein the soaking time of the water-blocking yarn base material in the coating glue solution is 20 s;

(8) secondary pulp scraping: carrying out size scraping work on the water-blocking yarn base material taken out from the coating glue solution so as to remove redundant coating glue solution adhered to the water-blocking yarn base material;

(9) secondary drying: taking out and drying to obtain the water-blocking yarn for the submarine optical cable, wherein the drying temperature is 130 ℃.

EXAMPLE III

A method for manufacturing water-blocking yarns for submarine optical cables comprises the following steps:

(1) preparing raw materials, preparing a water-blocking solution, a water-blocking glue solution and a coating glue solution:

the raw materials are polyester fiber non-woven fabric and fiber bundles containing high-rate water-absorbent resin;

the water-blocking solution comprises deionized water, acrylic acid, sodium hydroxide liquid, hydroxyethyl acrylate, an antistatic agent, a cross-linking agent and an initiator;

the water-blocking glue solution comprises deionized water and polyacrylate emulsion;

the coating glue solution comprises deionized water, polyether polyol ester, diisocyanate, a cationic cross-linking agent and a chain terminator.

(2) Preparing a water-blocking yarn base material: attaching fiber bundles containing high-rate water-absorbing resin to polyester fiber non-woven fabric to form a water-blocking yarn base material, and combining the polyester fiber non-woven fabric and the fiber bundles containing the high-rate water-absorbing resin in a weaving manner;

(3) immersing in a water-blocking solution: putting the prepared water-blocking yarn base material into a water-blocking solution for soaking;

(4) immersing into a water-blocking glue solution: after the water-blocking yarn base materials are thoroughly soaked, directly putting the water-blocking yarn base materials into water-blocking glue solution for soaking, soaking the water-blocking yarn base materials soaked in the water-blocking glue solution for 1 min;

(5) primary pulp scraping: carrying out size scraping work on the water-blocking yarn base material taken out from the water-blocking glue solution so as to remove redundant water-blocking glue solution adhered to the water-blocking yarn base material;

(6) primary drying: carrying out drying work on the water-blocking yarn base materials after scraping and cleaning, preheating the water-blocking yarn base materials soaked with the water-blocking glue solution at 110 ℃ for 35s, and curing at the drying condition of 155 ℃ at the forming speed of 17 m/min;

(7) dipping into coating glue solution: putting the dried water-blocking yarn base material into a coating glue solution for soaking, wherein the soaking time of the water-blocking yarn base material in the coating glue solution is 20 s;

(8) secondary pulp scraping: carrying out size scraping work on the water-blocking yarn base material taken out from the coating glue solution so as to remove redundant coating glue solution adhered to the water-blocking yarn base material;

(9) secondary drying: taking out and drying to obtain the water-blocking yarn for the submarine optical cable, wherein the drying temperature is 155 ℃.

Example four

A method for manufacturing water-blocking yarns for submarine optical cables comprises the following steps:

(1) preparing raw materials, preparing a water-blocking solution, a water-blocking glue solution and a coating glue solution:

the raw materials are polyester fiber non-woven fabric and fiber bundles containing high-rate water-absorbent resin;

the water-blocking solution comprises deionized water, acrylic acid, sodium hydroxide liquid, hydroxyethyl acrylate, an antistatic agent, a cross-linking agent and an initiator;

the water-blocking glue solution comprises deionized water and polyacrylate emulsion;

the coating glue solution comprises deionized water, polyether polyol ester, diisocyanate, a cationic cross-linking agent and a chain terminator.

(2) Preparing a water-blocking yarn base material: attaching fiber bundles containing high-rate water-absorbing resin to polyester fiber non-woven fabric to form a water-blocking yarn base material, and combining the polyester fiber non-woven fabric and the fiber bundles containing the high-rate water-absorbing resin in a weaving manner;

(3) immersing in a water-blocking solution: putting the prepared water-blocking yarn base material into a water-blocking solution for soaking;

(4) immersing into a water-blocking glue solution: after the water-blocking yarn base materials are thoroughly soaked, directly putting the water-blocking yarn base materials into water-blocking glue solution for soaking, soaking the water-blocking yarn base materials soaked in the water-blocking glue solution for 1 min;

(5) primary pulp scraping: carrying out size scraping work on the water-blocking yarn base material taken out from the water-blocking glue solution so as to remove redundant water-blocking glue solution adhered to the water-blocking yarn base material;

(6) primary drying: carrying out drying work on the water-blocking yarn base material after scraping and cleaning, preheating the water-blocking yarn base material soaked with the water-blocking glue solution at 120 ℃ for 30s, and curing at 170 ℃ under a drying condition, wherein the forming speed is 15 m/min;

(7) dipping into coating glue solution: putting the dried water-blocking yarn base material into a coating glue solution for soaking, wherein the soaking time of the water-blocking yarn base material in the coating glue solution is 20 s;

(8) secondary pulp scraping: carrying out size scraping work on the water-blocking yarn base material taken out from the coating glue solution so as to remove redundant coating glue solution adhered to the water-blocking yarn base material;

(9) secondary drying: taking out and drying to obtain the water-blocking yarn for the submarine optical cable, wherein the drying temperature is 180 ℃.

EXAMPLE five

A method for manufacturing water-blocking yarns for submarine optical cables comprises the following steps:

preparing raw materials, preparing a water-blocking solution, a water-blocking glue solution and a coating glue solution: the raw materials are polyester fiber non-woven fabric and fiber bundles containing high-rate water-absorbent resin; the water-blocking solution comprises deionized water, acrylic acid, sodium hydroxide liquid, hydroxyethyl acrylate, an antistatic agent, a cross-linking agent and an initiator; the water-blocking glue solution comprises deionized water and polyacrylate emulsion; the coating glue solution comprises deionized water, polyether polyol ester, diisocyanate, a cationic cross-linking agent and a chain terminator.

Attaching fiber bundles containing high-rate water-absorbing resin to polyester fiber non-woven fabric to form a water-blocking yarn base material, and combining the polyester fiber non-woven fabric and the fiber bundles containing the high-rate water-absorbing resin in a weaving manner; putting the prepared water-blocking yarn base material into a water-blocking solution for soaking; after the water-blocking yarn base materials are thoroughly soaked, directly putting the water-blocking yarn base materials into water-blocking glue solution for soaking, soaking the water-blocking yarn base materials soaked in the water-blocking glue solution for 1 min; carrying out size scraping work on the water-blocking yarn base material taken out from the water-blocking glue solution so as to remove redundant water-blocking glue solution adhered to the water-blocking yarn base material; carrying out drying work on the water-blocking yarn base material after scraping and cleaning, preheating the water-blocking yarn base material soaked with the water-blocking glue solution at 100-120 ℃ for 35s, and curing at the drying condition of 140-170 ℃ at the forming speed of 15-20 m/min;

putting the dried water-blocking yarn base material into a coating glue solution for soaking, wherein the soaking time of the water-blocking yarn base material in the coating glue solution is 20 s; carrying out size scraping work on the water-blocking yarn base material taken out from the coating glue solution so as to remove redundant coating glue solution adhered to the water-blocking yarn base material; taking out and drying to obtain the water-blocking yarn for the submarine optical cable, wherein the drying temperature is 130-180 ℃.

The water-blocking yarn manufactured by the method for manufacturing the water-blocking yarn for the submarine optical cable has the advantages of high water-blocking sealing performance, high water absorption speed, high expansion rate, strong tension resistance, no compatibility influence on the cable, heat resistance, chemical stability, no corrosiveness and the like, and materials such as filling ointment, a water-blocking tape, tying yarn and the like can be omitted in the manufacturing process of the optical cable;

the water-blocking effect of the water-blocking yarn can be better increased through the distribution treatment of the water-blocking solution and the water-blocking glue solution, meanwhile, the falling of water-blocking powder on the water-blocking yarn can be reduced, and meanwhile, the coating glue solution is also arranged, so that the tensile resistance of the water-blocking yarn can be greatly improved, the water-blocking yarn can achieve higher water pressure resistance, and the falling of the water-blocking powder on the water-blocking yarn can be further reduced, so that the yarn entering the cable has more water-blocking powder, and the water-blocking cable has better water-blocking effect;

the water-blocking yarn is convenient to use, simple in process, stable in structure, reliable in water blocking, clean in environment and free of oily pollution, is mainly suitable for wrapping cable cores of waterproof communication cables and dry optical cables, and is most ideal for crosslinked polyethylene insulated power cables, especially submarine optical cables.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.