阅读说明：本技术 一种高吸附性熔喷无纺布的生产方法 (Production method of high-adsorbability melt-blown non-woven fabric ) 是由 戚志 黎善雄 于 2020-06-02 设计创作，主要内容包括：本发明实施例涉及熔喷布生产技术领域,具体公开了一种高吸附性熔喷无纺布的生产方法,包括以下具体步骤：S10：取料；S20：混合,将按重量份称取后的聚丙烯、活性炭颗粒、乙二醇,硝酸胍、PET树脂、超细纤维、发泡树脂和添加剂进行混合搅拌均匀,备用；S30：进料；S40：熔融处理,通过双螺杆挤出机熔融共混,形成材料熔体；S50：喷料,材料熔体经对应的双螺杆挤出机挤出,并经计量后通过偏心皮芯型纺丝组件的喷嘴喷出；S60：冷却成型。采用本发明实施例提供的高吸附性熔喷无纺布的生产方法可以增强整体熔喷无纺布的吸附性能；本发明实施例通过调整各原料的含量及相关工艺参数,能够根据需要对制得的熔喷无纺布的性能进行调控,工艺简单。(The embodiment of the invention relates to the technical field of melt-blown fabric production, and particularly discloses a production method of high-adsorbability melt-blown non-woven fabric, which comprises the following specific steps: s10: taking materials; s20: mixing, namely mixing and stirring the polypropylene, the activated carbon particles, the glycol, the guanidine nitrate, the PET resin, the superfine fibers, the foaming resin and the additive which are weighed according to the parts by weight uniformly for later use; s30: feeding; s40: performing melting treatment, namely melting and blending through a double-screw extruder to form a material melt; s50: material spraying, namely extruding a material melt through a corresponding double-screw extruder, and spraying the material melt through a nozzle of an eccentric sheath-core spinning assembly after metering; s60: and (5) cooling and forming. The production method of the high-adsorbability melt-blown non-woven fabric provided by the embodiment of the invention can enhance the adsorbability of the whole melt-blown non-woven fabric; according to the embodiment of the invention, the performance of the prepared melt-blown non-woven fabric can be regulated and controlled as required by adjusting the content of each raw material and related process parameters, and the process is simple.)

1. The production method of the high-adsorbability melt-blown non-woven fabric is characterized by comprising the following specific steps of:

s10: taking materials, namely weighing polypropylene, activated carbon particles, ethylene glycol, guanidine nitrate, PET resin, superfine fibers, foaming resin and an additive in parts by weight;

s20: mixing, namely mixing and stirring the polypropylene, the activated carbon particles, the glycol, the guanidine nitrate, the PET resin, the superfine fibers, the foaming resin and the additive which are weighed according to the parts by weight uniformly for later use;

s30: feeding, namely pumping the mixed material in the step S20 into a hopper of a double-screw extruder;

s40: performing melting treatment, namely melting and blending through a double-screw extruder to form a material melt;

s50: material spraying, namely extruding a material melt through a corresponding double-screw extruder, and spraying the material melt through a nozzle of an eccentric sheath-core spinning assembly after metering;

s60: and (4) cooling and forming, namely cooling the material sprayed in the step S50 by adopting cooling air at the temperature of 5-20 ℃, and obtaining the adsorptive melt-blown non-woven fabric after web formation and reinforcement.

2. The method for producing high-adsorptivity melt-blown non-woven fabric according to claim 1, wherein the step S10 of taking the materials in parts by weight specifically comprises: 70-90 parts of polypropylene, 20-30 parts of activated carbon particles, 10-20 parts of ethylene glycol, 30-40 parts of PET resin, 10-20 parts of superfine fiber, 40-50 parts of foaming resin, 5-10 parts of guanidine nitrate and 3-5 parts of additive.

3. The method for producing high-adsorptivity melt-blown non-woven fabric according to claim 2, wherein the step S10 of taking the materials in parts by weight specifically comprises: 75-85 parts of polypropylene, 24-27 parts of activated carbon particles, 13-17 parts of ethylene glycol, 33-37 parts of PET resin, 14-17 parts of superfine fiber, 43-47 parts of foaming resin, 7-9 parts of guanidine nitrate and 3.5-4.5 parts of additive.

4. The method for producing high-adsorptivity melt-blown non-woven fabric according to claim 3, wherein the step S10 of taking materials in parts by weight specifically comprises: 80 parts of polypropylene, 25 parts of activated carbon particles, 15 parts of ethylene glycol, 34 parts of PET resin, 16 parts of superfine fiber, 44 parts of foaming resin, 8 parts of guanidine nitrate and 4 parts of additive.

5. The method for producing highly adsorptive melt-blown nonwoven fabric according to any one of claims 2 to 4, wherein in step S20, the materials are mixed and stirred uniformly and dried until the moisture content is below 150 ppm.

6. The method for producing high adsorptive melt-blown non-woven fabric according to claim 5, wherein the mixing temperature of the materials in step S20 is 35-45 ℃ and the mixing time is 20-30 min.

7. The method for producing highly adsorptive melt-blown nonwoven fabric according to claim 6, wherein the temperature of said spinning pack is 250-280 ℃ in step S50.

8. The method for producing highly adsorptive melt-blown nonwoven fabric according to claim 7, wherein in step S50, the spinning speed of said spinning pack is 10 to 40 m/min.

9. The method for producing high-adsorptivity melt-blown nonwoven fabric according to any one of claims 2 to 4, wherein the additive is a surfactant.

Technical Field

The embodiment of the invention relates to the technical field of melt-blown fabric production, in particular to a production method of high-adsorbability melt-blown non-woven fabric.

Background

The melt-blown process is a non-woven fabric processing technology for directly preparing a net from a polymer, and the action principle of the melt-blown process is mainly that a polymer melt is gradually solidified into a melt trickle by utilizing high-speed high-temperature air flow through blowing so as to obtain superfine fibers. The melt-blown nonwoven material is mainly used as a composite material, a filter material, a thermal insulation material, a sanitary product, an oil absorption material, a battery diaphragm and the like, and is widely applied to the fields of medical sanitation, filter materials, environmental protection, industry and the like.

At present, melt blown non-woven fabrics mainly use polypropylene as the raw materials, but because polypropylene is macromolecular structure, its adsorption efficiency is relatively poor, melt blown non-woven fabrics often can be because of receiving various exogenic actions such as tensile, friction, tearing, compression and produce deformation damage in the use, and in practical application, melt blown non-woven fabrics will directly influence its application range and product life etc. in the power of deformability when bearing external load.

Disclosure of Invention

The embodiment of the invention aims to provide a method for producing high-adsorbability melt-blown non-woven fabric, which aims to solve the problems in the background technology. In order to achieve the above purpose, the embodiments of the present invention provide the following technical solutions:

a production method of high-adsorbability melt-blown non-woven fabric comprises the following specific steps:

s10: taking materials, namely weighing polypropylene, activated carbon particles, ethylene glycol, guanidine nitrate, PET resin, superfine fibers, foaming resin and an additive in parts by weight;

s20: mixing, namely mixing and stirring the polypropylene, the activated carbon particles, the glycol, the guanidine nitrate, the PET resin, the superfine fibers, the foaming resin and the additive which are weighed according to the parts by weight uniformly for later use;

s30: feeding, namely pumping the mixed material in the step S20 into a hopper of a double-screw extruder;

s40: performing melting treatment, namely melting and blending through a double-screw extruder to form a material melt;

s50: material spraying, namely extruding a material melt through a corresponding double-screw extruder, and spraying the material melt through a nozzle of an eccentric sheath-core spinning assembly after metering;

s60: and (4) cooling and forming, namely cooling the material sprayed in the step S50 by adopting cooling air at the temperature of 5-20 ℃, and obtaining the adsorptive melt-blown non-woven fabric after web formation and reinforcement.

As a further scheme of the embodiment of the invention: the material taking in the step S10 specifically comprises the following steps: 70-90 parts of polypropylene, 20-30 parts of activated carbon particles, 10-20 parts of ethylene glycol, 30-40 parts of PET resin, 10-20 parts of superfine fiber, 40-50 parts of foaming resin, 5-10 parts of guanidine nitrate and 3-5 parts of additive.

As a further scheme of the embodiment of the invention: the material taking in the step S10 specifically comprises the following steps: 75-85 parts of polypropylene, 24-27 parts of activated carbon particles, 13-17 parts of ethylene glycol, 33-37 parts of PET resin, 14-17 parts of superfine fiber, 43-47 parts of foaming resin, 7-9 parts of guanidine nitrate and 3.5-4.5 parts of additive.

As a further scheme of the embodiment of the invention: the material taking in the step S10 specifically comprises the following steps: 80 parts of polypropylene, 25 parts of activated carbon particles, 15 parts of ethylene glycol, 34 parts of PET resin, 16 parts of superfine fiber, 44 parts of foaming resin, 8 parts of guanidine nitrate and 4 parts of additive.

As a further scheme of the embodiment of the invention: in step S20, the materials are mixed, stirred uniformly and dried until the moisture content is below 150 ppm.

As a further scheme of the embodiment of the invention: and (5) when the materials in the step S20 are mixed, the mixing temperature is 35-45 ℃, and the mixing time is 20-30 min.

As a further scheme of the embodiment of the invention: in step S50, the temperature of the spinning assembly is 250-280 ℃.

As a further scheme of the embodiment of the invention: in step S50, the spinning speed of the spinning assembly is 10-40 m/min.

As a further scheme of the embodiment of the invention: the additive is a surfactant.

Compared with the prior art, in the production method of the high-adsorbability melt-blown non-woven fabric provided by the embodiment of the invention, by strictly controlling the preparation method of the high-adsorbability melt-blown non-woven fabric, and by strictly controlling the proportion of each component and the preparation process parameters of the raw material formula of the high-adsorbability melt-blown non-woven fabric, the added activated carbon particles and the added foaming resin can enhance the adsorption performance of the whole melt-blown non-woven fabric, not only can adsorb dust and liquid, but also has good adsorption effect on eliminating peculiar smell; according to the embodiment of the invention, the performance of the prepared melt-blown non-woven fabric can be regulated and controlled as required by adjusting the content of each raw material and related process parameters, and the controllability is strong; the preparation process is simple and can be used for large-scale production; the prepared non-woven fabric has good elasticity, high strength and low surface viscosity, can meet the requirements of practical application, and has a wide application range.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more apparent, the present invention is further described in detail below with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.