A kind of antibacterial breathable membrane masterbatch and preparation method thereof

A gas-permeable film and masterbatch technology, applied in the field of polyethylene materials, can solve the problems of low controllability of micropore size, high product defective rate, and many influencing parameters, and achieve long-lasting inhibition of bacterial growth, strong and long-lasting antibacterial effect, The effect of simple process

Active Publication Date: 2020-11-20
HEFEI GENIUS NEW MATERIALS
View PDF21 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The common production method of breathable film is to add a certain proportion of inorganic fillers such as calcium carbonate and talcum powder to the polymer, and then extrude it into a sheet / film through a screw, and then stretch it horizontally and vertically. , when the bonding force between the inorganic filler and its surrounding polymer is less than the deformation force of the polymer caused by stretching, the polymer will separate along the edge of the inorganic filler particle, resulting in micropores, the size and shape of which are the same as those of the inorganic filler The particle size, shape and stretching method, stretching ratio and other process conditions are related. There are many influencing parameters, the probability of error is high, the controllability of the micropore size is low, and the defective rate of the produced products is high, which increases the production capacity. Moreover, after long-term use, due to the aging of the film, the bonding force between the particle edge of the inorganic filler and the polymer becomes smaller, which will cause the particles of the inorganic filler to fall off, thereby affecting the water-proof effect

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of antibacterial breathable membrane masterbatch and preparation method thereof
  • A kind of antibacterial breathable membrane masterbatch and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 280g PE-7042, 300g PE-8320, 400g calcium carbonate LD-1000C, 60g water-soluble organic matter ethylene glycol, 1g EBS / P-130, 3g B6000 antibacterial agent, 1g antioxidant 1010 and 2g antioxidant 1076 into the airtight After mixing in the mixer for 5 minutes, the banburying temperature is 150-180°C, melt blending, extrusion and traction in a twin-screw extruder. The length-to-diameter ratio of the extruder is 32, and the barrel temperature of the extruder is 180°C. , fixed main screw speed 180 rpm. Use a casting machine to form a film and wind it up. The barrel temperature of the tape casting machine is 250-260°C, and the die head temperature is 260°C-280°C. See Table 1 for test data.

Embodiment 2

[0034] 400g PE-8008, 500g PE-8320, 50g calcium carbonate LD-1000C, 100g water-soluble organic matter ethylene glycol, 1gEBS / P-130, 0.5g calcium stearate, 0.5g zinc stearate, 1g lead stearate , 1g barium stearate, 1g pentaerythritol stearate, 5g B6000 antibacterial agent, 1g antioxidant 1010 were put into the internal mixer and mixed for 5 minutes. Melt blending extrusion and traction were carried out, the aspect ratio of the extruder was 40, the temperature of the barrel of the extruder was 180° C., and the rotational speed of the main screw was fixed at 200 rpm. Use a casting machine to form a film and wind it up. The barrel temperature of the tape casting machine is 250-260°C, and the die head temperature is 260°C-280°C. See Table 1 for test data.

Embodiment 3

[0036] Put 940g PE-7042, 50g calcium carbonate LD-1000C, 100g water-soluble organic matter ethylene glycol, 1g calcium stearate, 7gB6000 antibacterial agent and 2g antioxidant 168 into the internal mixer and mix for 5 minutes. 150-180°C, melt blending extrusion and traction in a twin-screw extruder, the aspect ratio of the extruder is 37, the barrel temperature of the extruder is 185°C, and the main screw speed is fixed at 190 rpm. Use a casting machine to form a film and wind it up. The barrel temperature of the tape casting machine is 250-260°C, and the die head temperature is 260°C-280°C. See Table 1 for test data.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an antibacterial gas-permeable membrane masterbatch and a preparation method thereof. The material is made of the following raw material components in parts by weight: polyethylene 30‑95, mineral filling 5‑50, water soluble organic matter 5‑10, lubricant 0.1‑0.5, antibacterial agent 2‑10 and antioxidant 0.1‑0.3 . The preparation method of the material includes the following steps: mixing polyethylene, mineral filling, water-soluble organic matter, lubricant, antibacterial agent and antioxidant in a banbury mixer for 5-8 minutes; and then melt blending through an extruder Extrusion, traction, granulation, and then using the casting process to cast the breathable masterbatch, cooling and shaping, and winding to obtain a polyethylene cast film. In the present invention, minerals are added, water-soluble organic matter is used in combination, and antibacterial agents are added to endow the masterbatch of the polyethylene air-permeable film with better air permeability, safety and sanitation.

Description

technical field [0001] The invention belongs to the technical field of polyethylene materials, and in particular relates to an antibacterial breathable film master batch material and a preparation method thereof. Background technique [0002] Breathable film is a film with tens of thousands of micropores (pore size ranging from a few tenths of a micron to tens of microns) made of polymer materials through a specific production process. It is characterized by breathability and impermeability. It allows water Gases such as steam and air pass through, but liquids are not allowed to pass through. At present, breathable films have been widely used in diapers, sanitary napkins, sanitary pads and other personal hygiene products such as medical clothing, medical gauze, rain cloth, raincoats, food packaging, crop preservation, building waterproofing and other fields. [0003] The common production method of breathable film is to add a certain proportion of inorganic fillers such as ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/08C08L23/06C08K13/02C08K3/26C08K3/00C08K3/08C08K3/22
CPCC08J5/18C08J2323/08C08J2423/06C08J2423/08C08K3/08C08K3/22C08K3/26C08K13/02C08K2003/0806C08K2003/2296C08K2003/265C08K2201/011C08L23/0815C08L2203/16C08L2205/025C08L2207/062C08L2207/066
Inventor 杨桂生王华朱敏李晓庆姚晨光
Owner HEFEI GENIUS NEW MATERIALS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap