阅读说明：本技术 一种扩融驻极抗菌母料及加工工艺、用途 (Expanded and fused electret antibacterial master batch, processing technology and application ) 是由 李灵江 刘丽艳 于 2020-04-28 设计创作，主要内容包括：本发明属于高分子材料技术领域,具体涉及一种扩融驻极抗菌母料及加工工艺、用途。其包括以下重量份的组分：包括70～190份的聚丙烯、1～2份的过氧化物、1～2份抗氧剂、1～2份的增塑剂、1～2份的润滑剂、1～2份的驻极材料和1～2份抗菌剂。实现多重功能,通过过氧化物的添加引发分子量的断裂,提高了PP材料本身的溶体指数,实现材料流动性能的提高,使得材料更加容易成型。驻极材料的添加使得材料本身能够产生静电能够吸附病毒及空气中的颗粒物,并且由于材料中抗菌杀菌材料,将病毒及颗粒物吸附后能将病菌杀死。只需要少量(4%左右)添加至中融指纤维级PP原料中(以往只能做无纺布),即可应用于熔喷材料,解决熔喷材料短缺的问题。(The invention belongs to the technical field of high polymer materials, and particularly relates to a fusion-expanded electret antibacterial master batch, a processing technology and an application. The paint comprises the following components in parts by weight: the antistatic coating comprises 70-190 parts of polypropylene, 1-2 parts of peroxide, 1-2 parts of antioxidant, 1-2 parts of plasticizer, 1-2 parts of lubricant, 1-2 parts of electret material and 1-2 parts of antibacterial agent. The multifunctional PP material has multiple functions, the molecular weight is broken by adding peroxide, the melt index of the PP material is improved, the material flowability is improved, and the material is easier to form. The addition of the electret material can enable the material to generate static electricity to adsorb viruses and particles in the air, and the antibacterial sterilization material in the material can kill the viruses and the particles after adsorbing the viruses and the particles. Only a small amount (about 4%) of the additive is added into a middle melting fiber PP raw material (which can be used as non-woven fabric in the past), and the additive can be applied to melt-blown materials and solves the problem of shortage of the melt-blown materials.)

1. The expanded electret antibacterial master batch is characterized by comprising the following components in parts by weight: the antistatic coating comprises 70-190 parts of polypropylene, 1-2 parts of peroxide, 1-2 parts of antioxidant, 1-2 parts of plasticizer, 1-2 parts of lubricant, 1-2 parts of electret material and 1-2 parts of antibacterial agent.

2. The expanded-melt electret antimicrobial masterbatch according to claim 1, wherein the polypropylene is present in an amount of 70 to 90 parts by weight;

the polypropylene is any one of PPY 25/Y35/Y37;

the weight part of the peroxide is 2 parts; the peroxide is any one of DCP and 101;

the antioxidant accounts for 2 parts by weight; the antioxidant is 1010/215/900;

the weight part of the plasticizer is 2 parts; the plasticizer is one of paraffin, white oil and polyethylene wax;

the weight part of the lubricant is 2 parts; the lubricant is any one of stearic acid, zinc stearate and calcium stearate;

the weight part of the electret material is 2 parts; the electret material is any one of graphene, tourmaline and organic carbohydrate;

the weight part of the antibacterial agent is 1 part; the antibacterial agent is one of inorganic antibacterial agent, organic antibacterial agent, natural antibacterial agent and macromolecular antibacterial agent;

the inorganic antibacterial agent is any one of silver ion silver zeolite, silver activated carbon, silver silica gel and silver glass beads; the organic antibacterial agent is any one of quaternary ammonium salt, phenol ether, phenols and pyridine.

3. The extended-melt electret antimicrobial masterbatch according to claim 2, wherein said organic carbohydrate is a lipid compound.

4. The extended-melt electret antimicrobial masterbatch of claim 3, wherein said lipid compound is cholesterol or a glycolipid.

5. The preparation method of the expanded electret antibacterial master batch is characterized by comprising the following steps: heating polyethylene to 50 ℃, grinding the electret material and peroxide by using a high-speed stirring pot, blending the plasticizer, the lubricant and the antibacterial agent after grinding the materials, performing melt blending extrusion and granulation, and putting the mixture into a double-screw extruder with the length-diameter ratio of 48 for melt extrusion; and (3) when the materials are subjected to melt blending and extrusion, the temperature of a melting section is 220-260 ℃, and the particles are dried after granulation, so that the expanded electret antibacterial master batch is obtained.

6. The application of the expanded and fused electret antibacterial master batch is characterized in that: 2-6% of the expanded electret antibacterial master batch is added into a middle melt-finger fiber-grade PP raw material, and the melt-blown material for manufacturing the medical mask melt-blown cloth can be obtained.

7. Use of an extended melt electret antimicrobial masterbatch according to claim 4 wherein: the proportion of the expandable electret master batch is 4 percent.

Technical Field

The invention belongs to the technical field of high polymer materials, and particularly relates to a fusion-expanded electret antibacterial master batch, a processing technology and an application.

Background

At present, due to the spreading of coronavirus, the market demand of masks and related materials is greatly increased, the existing PP melt-blown materials have the following problems that the function is single, the yield cannot meet the market demand, the traditional production melt-blown fiber PP raw materials can only be used for producing non-woven fabrics, the requirement of the melt-blown material for mask production on the filtering effect cannot be met, the melt-blown materials meeting the requirement of the filtering effect are insufficient in yield and extremely high in price, and the market demand cannot be met.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides a fused electret antibacterial master batch, a processing technology and an application thereof, which are used for solving the technical problems.

A fusion electret antibacterial master batch comprises the following components in parts by weight: 70-90 parts of polypropylene, 1-2 parts of peroxide, 1-2 parts of antioxidant, 1-2 parts of plasticizer, 1-2 parts of lubricant, 1-2 parts of electret material and 1-2 parts of antibacterial agent.

Further, the weight part of the polypropylene is 90 parts; the polypropylene is any one of PPY 25/Y35/Y37;

further, the weight part of the peroxide is 2 parts; the peroxide is any one of DCP and 101;

further, the antioxidant accounts for 2 parts by weight; the antioxidant is 1010/215/900;

further, the weight part of the plasticizer is 2 parts; the plasticizer is one of paraffin, white oil and polyethylene wax;

further, the weight part of the lubricant is 2 parts; the lubricant is any one of stearic acid, zinc stearate and calcium stearate;

further, the weight part of the electret material is 2 parts; the electret material is any one of graphene, tourmaline and organic carbohydrate;

further, the weight part of the antibacterial agent is 1 part; the antibacterial agent is one of inorganic antibacterial agent, organic antibacterial agent, natural antibacterial agent and macromolecular antibacterial agent;

further, the inorganic antibacterial agent is any one of silver ion silver zeolite, silver activated carbon, silver silica gel and silver glass beads; the organic antibacterial agent is any one of quaternary ammonium salt, phenol ether, phenols and pyridine.

Further, the organic carbohydrate is a lipid compound.

Further, the lipid compound is cholesterol or glycolipid.

The preparation method of the expanded melt electret antibacterial master batch comprises the steps of heating polyethylene to 50 ℃, grinding the electret material and peroxide by using a high-speed stirring pot, blending the plasticizer, the lubricant and the antibacterial agent after grinding the material, melting, blending, extruding and granulating the mixture, and putting the mixture into a double-screw extruder with the length-diameter ratio of 48 to melt and extrude the mixture; and (3) when the materials are subjected to melt blending and extrusion, the temperature of a melting section is 220-260 ℃, and the particles are dried after granulation, so that the expanded electret antibacterial master batch is obtained.

The expanded electret antibacterial master batch is used, and 2-6% of the expanded electret antibacterial master batch is added into a middle-melting fiber PP raw material to form a melt-blown material for manufacturing medical mask melt-blown cloth. Further, the proportion of the expandable electret master batch is 4%.

The invention has the beneficial effects that:

1. the multifunctional PP material has multiple functions, the molecular weight is broken by adding peroxide, the melt index of the PP material is improved, the material flowability is improved, and the material is easier to form. The addition of the electret material can enable the material to generate static electricity to adsorb viruses and particles in the air, and the antibacterial sterilization material in the material can kill the viruses and the particles after adsorbing the viruses and the particles.

2. Only a small amount (about 4%) of the material is added into a middle melting fiber PP raw material (which can be used as non-woven fabric in the past), and the material can be applied to a melt-blown material for a mask, so that the problem of shortage of the melt-blown material is solved.

Detailed Description

The technical solution of the present invention will be further described in detail with reference to specific embodiments. The following examples are merely illustrative and explanatory of the present invention and should not be construed as limiting the scope of the invention. All the technologies realized based on the above-mentioned contents of the present invention are covered in the protection scope of the present invention.

Unless otherwise indicated, the raw materials and reagents used in the following examples are all commercially available products or can be prepared by known methods.

Unless otherwise indicated, "parts" of the raw materials and reagents in the following examples refer to parts by weight, and percentages refer to weight percentages.

A fusion-expanded electret antibacterial master batch comprises the following components in parts by weight: the antistatic coating comprises 70-90 parts of polypropylene, 1-2 parts of peroxide, 1-2 parts of antioxidant, 1-2 parts of plasticizer, 1-2 parts of lubricant, 1-2 parts of electret material and 1-2 parts of antibacterial agent.

Preferably, the polypropylene is present in an amount of 90 parts by weight; the polypropylene is any one of PPY 25/Y35/Y37;

preferably, the peroxide is present in 2 parts by weight; the peroxide is any one of DCP and 101;

preferably, the antioxidant is 2 parts by weight; the antioxidant is 1010/215/900;

preferably, the weight part of the plasticizer is 2 parts; the plasticizer is one of paraffin, white oil and polyethylene wax;

preferably, the lubricant is 2 parts by weight; the lubricant is any one of stearic acid, zinc stearate and calcium stearate;

preferably, the weight part of the electret material is 2 parts; the electret material is any one of graphene, tourmaline and organic carbohydrate;

preferably, the antibacterial agent is 1 part by weight; the antibacterial agent is one of inorganic antibacterial agent, organic antibacterial agent, natural antibacterial agent and macromolecular antibacterial agent;

preferably, the inorganic antibacterial agent is any one of silver ion silver zeolite, silver activated carbon, silver silica gel and silver glass beads; the organic antibacterial agent is any one of quaternary ammonium salt, phenol ether, phenols and pyridine.

Preferably, the organic carbohydrate is a lipid compound.

Preferably, the lipid compound is cholesterol or a glycolipid.

The preparation method of the expanded melt electret antibacterial master batch comprises the steps of heating polyethylene to 50 ℃, grinding the electret material and peroxide by using a high-speed stirring pot, blending the plasticizer, the lubricant and the antibacterial agent after grinding the material, melting, blending, extruding and granulating the mixture, and putting the mixture into a double-screw extruder with the length-diameter ratio of 48 to melt and extrude the mixture; and (3) when the materials are subjected to melt blending and extrusion, the temperature of a melting section is 220-260 ℃, and the particles are dried after granulation, so that the expanded electret antibacterial master batch is obtained.

The expanded electret antibacterial master batch is used, and 2-6% of the expanded electret antibacterial master batch is added into a middle-melting fiber PP raw material to form a melt-blown material for manufacturing medical mask melt-blown cloth. Preferably, the proportion of the extended melt electret masterbatch is 4%.