阅读说明：本技术 一种高强低收缩丙纶长丝及其制备方法 (High-strength low-shrinkage polypropylene filament and preparation method thereof ) 是由 仲维文 于 2020-05-08 设计创作，主要内容包括：本发明公开了一种高强低收缩丙纶长丝及其制备方法,具体涉及丙纶长丝技术领域,所使用的主料包括以下按重量份数计包括：聚丙烯60-80份。通过在对丙纶长丝制备时,将硅胶粒与色母粒倒入原料中,硅胶粒的主要材质为硅胶,在与聚丙烯溶合后,因为硅胶的吸湿性较强,制作出的丙纶长丝具有一定的吸湿性,从而使丙纶长丝适用于服装行业,增加了丙纶长丝的使用范围,并且硅胶具有较好的韧性,在与聚丙烯溶合后,可以大大增加了丙纶长丝的韧性,使丙纶长丝可以在更加恶劣的环境使用,其中加入的色母粒可以更加需要的颜色,挑选色母粒的种类,并且色母粒内部设置有着色剂,增加了颜料吸附在聚丙烯内,避免出现褪色的情况。(The invention discloses a high-strength low-shrinkage polypropylene filament and a preparation method thereof, and particularly relates to the technical field of polypropylene filaments, wherein the used main materials comprise the following components in parts by weight: 60-80 parts of polypropylene. Through when preparing polypropylene fibre filament, pour into in the raw materials silica gel grain and masterbatch, the main material of silica gel grain is silica gel, after with polypropylene solution, because the hygroscopicity of silica gel is stronger, the polypropylene fibre filament who produces has certain hygroscopicity, thereby make polypropylene fibre filament be applicable to the clothing industry, the application range of polypropylene fibre filament has been increased, and silica gel has better toughness, after with polypropylene solution, can greatly increased polypropylene fibre filament's toughness, make polypropylene fibre filament can use in abominable environment, wherein the colour that the masterbatch that adds can more need, select the kind of masterbatch, and the inside colorant that is provided with of masterbatch, pigment adsorption has been increased in the polypropylene, the condition of fading avoids appearing.)

1. A high-strength low-shrinkage polypropylene filament is characterized in that: the used main materials comprise the following components in parts by weight: 60-80 parts of polypropylene, 3-8 parts of an antibacterial agent, 3-8 parts of an antioxidant, 10-20 parts of silica gel particles, 5-15 parts of color master batches, 3-8 parts of a coupling agent, 2-5 parts of a viscosity blending agent, 5-10 parts of a dispersing agent and 20-30 parts of distilled water.

2. A high strength low shrinkage polypropylene filament as claimed in claim 1 wherein: the used main materials comprise the following components in parts by weight: 65-75 parts of polypropylene, 4-7 parts of an antibacterial agent, 4-7 parts of an antioxidant, 12-18 parts of silica gel particles, 8-12 parts of color master batches, 4-6 parts of a coupling agent, 3-4 parts of a viscosity blending agent, 6-8 parts of a dispersing agent and 25-30 parts of distilled water.

3. A high strength low shrinkage polypropylene filament as claimed in claim 1 wherein: the silicon particle internal components are pectin and silica gel, the ratio of the pectin to the silica gel is 1:3, the color master batch internal components are a colorant, an additive and hot-melt resin, the colorant is specifically carotenoid, the additive is specifically methyl cellulose, and the ratio of the colorant, the additive and the hot-melt resin is 1:2: 3.

4. A high strength low shrinkage polypropylene filament as claimed in claim 1 wherein: the antibacterial agent comprises ethyl vanillin, the antioxidant comprises behenyl alcohol ester, lignoceryl alcohol ester and dioctadecyl alcohol ester, and the coupling agent is a silane coupling agent.

5. A process for preparing a high strength low shrinkage polypropylene filament according to any one of claims 1 to 4, wherein: the steps are as follows:

the method comprises the following steps: pouring a proper amount of polypropylene into a vessel, then putting the vessel into an oven for heating, dissolving the polypropylene, then pouring a certain amount of distilled water, stirring and mixing, and then heating the vessel;

step two: sequentially pouring a viscosity blender, an antibacterial agent and an antioxidant into the polypropylene solution in the heating process, and then stirring the mixture by a stirrer until the polypropylene solution forms a colloid;

step three: heating the polypropylene colloid again, dissolving, then pouring the silica gel particles, the color master batch and the coupling agent in sequence, pouring the dispersing agent when the temperature reaches the peak, then stirring for a period of time, standing for a period of time after uniformly stirring until the mixture is in a colloid state;

step four: pouring the colloid into a screw extruder for wire drawing treatment, wherein a spinneret plate at one end of the screw extruder can slowly spray polypropylene filaments from the inside of the equipment;

step five: collecting the sprayed polypropylene filaments by using a filament collecting device, placing the filaments in a cooling chamber for natural cooling for a period of time, and cooling and solidifying;

step six: after the polypropylene filament yarns are solidified, pulling out the polypropylene filament yarns, repeatedly washing the polypropylene filament yarns by using clear water, and then carrying out air drying treatment by using a fan;

step seven: after the polypropylene filament is treated, the filament is guided into a detection device, scanning detection is carried out through infrared rays, whether the outer surface of the polypropylene filament is defective or not is checked, and finally, the polypropylene filament qualified for detection is collected and placed into a warehouse for storage.

6. A method for preparing a high strength low shrinkage polypropylene filament according to claim 5, wherein: the ratio of the polypropylene to the distilled water in the first step is 1:1, the temperature of the oven in the first step is 180-200 ℃, and the stirring time in the first step is 2-3 h.

7. A method for preparing a high strength low shrinkage polypropylene filament according to claim 5, wherein: the ratio of the viscosity blender to the antibacterial agent to the antioxidant in the second step is 2:1:1, and the stirring time of the stirrer in the second step is 1-2 h.

8. A method for preparing a high strength low shrinkage polypropylene filament according to claim 5, wherein: the ratio of the silica gel particles, the color master batch and the coupling agent in the third step is 4:2:1, the peak temperature in the third step is 280-350 ℃, and the standing time in the third step is 8-10 h.

9. A method for preparing a high strength low shrinkage polypropylene filament according to claim 5, wherein: in the fourth step, the temperature of the screw extruder is 150-180 ℃, the pore diameter of a spinneret plate is 10-60 um, the drawing speed is 50-80m/min, in the fifth step, the polypropylene filament collecting device comprises a motor and a rolling shaft, and the temperature of a cooling chamber in the fifth step is 20-30 ℃.

10. A method for preparing a high strength low shrinkage polypropylene filament according to claim 5, wherein: and in the sixth step, the polypropylene filaments are washed by clear water for 3-5 times, and the air drying time of the fan in the sixth step is 20-40 min.

Technical Field

The embodiment of the invention relates to the technical field of polypropylene filaments, in particular to a high-strength low-shrinkage polypropylene filament and a preparation method thereof.

Background

The polypropylene filament is known as polypropylene fiber, which is melt-shrunk when being close to flame, is inflammable, burns slowly away from fire and emits black smoke, the upper end of the flame is yellow, the lower end of the flame is blue, the flame emits petroleum smell, and ash after burning is hard round and light yellow brown particles which are twisted by hands and are easy to break. It is made up by using propylene as raw material through the processes of polymerization and melt spinning.

Disclosure of Invention

The high-strength low-shrinkage polypropylene filament and the preparation method thereof are characterized in that silica gel particles and color master batches are poured into raw materials when the polypropylene filament is prepared, the silica gel particles are mainly made of silica gel, after the silica gel particles are fused with polypropylene, the prepared polypropylene filament has certain hygroscopicity because of strong hygroscopicity of the silica gel, so that the polypropylene filament is suitable for the clothing industry, the application range of the polypropylene filament is enlarged, the silica gel has good toughness, after the silica gel particles are fused with the polypropylene, the toughness of the polypropylene filament can be greatly increased, the polypropylene filament can be used in a worse environment, the added color master batches can be used in a more needed color, the types of the color master batches are selected, and a coloring agent is arranged in the color master batches, so that the pigment is adsorbed in the polypropylene, and the fading condition is avoided.

In order to achieve the above object, the embodiments of the present invention provide the following technical solutions: the high-strength low-shrinkage polypropylene filament uses the following main materials in parts by weight: 60-80 parts of polypropylene, 3-8 parts of an antibacterial agent, 3-8 parts of an antioxidant, 10-20 parts of silica gel particles, 5-15 parts of color master batches, 3-8 parts of a coupling agent, 2-5 parts of a viscosity blending agent, 5-10 parts of a dispersing agent and 20-30 parts of distilled water.

Further, the used main materials comprise the following components in parts by weight: 65-75 parts of polypropylene, 4-7 parts of an antibacterial agent, 4-7 parts of an antioxidant, 12-18 parts of silica gel particles, 8-12 parts of color master batches, 4-6 parts of a coupling agent, 3-4 parts of a viscosity blending agent, 6-8 parts of a dispersing agent and 25-30 parts of distilled water.

Further, the silicon particles comprise pectin and silica gel in a ratio of 1:3, the color master batch comprises a colorant, an additive and hot-melt resin in an internal component, the colorant is specifically carotenoid, the additive is specifically methyl cellulose, and the colorant, the additive and the hot-melt resin are in a ratio of 1:2: 3.

Further, the antibacterial agent is composed of ethyl vanillin, the antioxidant is composed of didodecanol ester, ditetradecanol ester and dioctadecyl alcohol ester, and the coupling agent is specifically a silane coupling agent.

A preparation method of high-strength low-shrinkage polypropylene filaments comprises the following steps:

the method comprises the following steps: pouring a proper amount of polypropylene into a vessel, then putting the vessel into an oven for heating, dissolving the polypropylene, then pouring a certain amount of distilled water, stirring and mixing, and then heating the vessel;

step two: sequentially pouring a viscosity blender, an antibacterial agent and an antioxidant into the polypropylene solution in the heating process, and then stirring the mixture by a stirrer until the polypropylene solution forms a colloid;

step three: heating the polypropylene colloid again, dissolving, then pouring the silica gel particles, the color master batch and the coupling agent in sequence, pouring the dispersing agent when the temperature reaches the peak, then stirring for a period of time, standing for a period of time after uniformly stirring until the mixture is in a colloid state;

step four: pouring the colloid into a screw extruder for wire drawing treatment, wherein a spinneret plate at one end of the screw extruder can slowly spray polypropylene filaments from the inside of the equipment;

step five: collecting the sprayed polypropylene filaments by using a filament collecting device, placing the filaments in a cooling chamber for natural cooling for a period of time, and cooling and solidifying;

step six: after the polypropylene filament yarns are solidified, pulling out the polypropylene filament yarns, repeatedly washing the polypropylene filament yarns by using clear water, and then carrying out air drying treatment by using a fan;

step seven: after the polypropylene filament is treated, the filament is guided into a detection device, scanning detection is carried out through infrared rays, whether the outer surface of the polypropylene filament is defective or not is checked, and finally, the polypropylene filament qualified for detection is collected and placed into a warehouse for storage.

Further, the ratio of the polypropylene to the distilled water in the first step is 1:1, the temperature of the oven in the first step is 180-200 ℃, and the stirring time in the first step is 2-3 h.

Further, the ratio of the viscosity blender to the antibacterial agent to the antioxidant in the second step is 2:1:1, and the stirring time of the stirrer in the second step is 1-2 h.

Further, the ratio of the silica gel particles, the color master batch and the coupling agent in the third step is 4:2:1, the peak temperature in the third step is 280-350 ℃, and the standing time in the third step is 8-10 h.

Further, the temperature of the screw extruder in the fourth step is 150-180 ℃, the aperture of the spinneret plate is 10-60 um, the wire drawing speed is 50-80m/min, the polypropylene filament collecting device in the fifth step comprises a motor and a rolling shaft, and the temperature of the cooling chamber in the fifth step is 20-30 ℃.

Furthermore, in the sixth step, the polypropylene filaments are washed by clear water for 3-5 times, and the air drying time of the air blower in the sixth step is 20-40 min.

The embodiment of the invention has the following advantages:

through when preparing polypropylene fibre filament, pour into in the raw materials silica gel grain and masterbatch, the main material of silica gel grain is silica gel, after with polypropylene solution, because the hygroscopicity of silica gel is stronger, the polypropylene fibre filament who produces has certain hygroscopicity, thereby make polypropylene fibre filament be applicable to the clothing industry, the application range of polypropylene fibre filament has been increased, and silica gel has better toughness, after with polypropylene solution, can greatly increased polypropylene fibre filament's toughness, make polypropylene fibre filament can use in abominable environment, wherein the colour that the masterbatch that adds can more need, select the kind of masterbatch, and the inside colorant that is provided with of masterbatch, pigment adsorption has been increased in the polypropylene, the condition of fading avoids appearing.

Detailed Description

The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. 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.