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As the new production lines of Sinopec and other companies are completed and put into operation, the output of meltblown cloth is expected to increase in the next week, and many companies have successively launched alternative materials, and the shortage of meltblown cloth is expected to ease
.
On March 9th, the first car of meltblown cloth produced by Sinopec left the factory!
.
Not only that, in order to further enhance the market supply capacity and stabilize the price of raw materials, on the basis of the emergency launch of 10 meltblown cloth production lines (with a production capacity of 18 tons/day) in the early stage, Sinopec recently decided to add another 6 to Yanshan Petrochemical and Yizheng Chemical Fiber.
production line to increase the production capacity of meltblown cloth by 12 tons/day
.
Meltblown cloth is the filter layer in the middle of medical masks.
It is made of modified polypropylene.
It has good filterability, barrier properties and adsorption properties.
It is described as the "heart" of masks and is an important raw material for the production of medical masks.
one
.
Huge investment and high technology content restrict the expansion of meltblown cloth production capacity
Huge investment and high technology content restrict the expansion of meltblown cloth production capacityIndustry insiders said that the meltblown cloth production line has huge investment, high technical content, complex equipment installation, high requirements for workshops, and the need for specialized skilled workers.
An important factor restricting the expansion of meltblown cloth production capacity
.
It is reported that there are currently less than 100 companies capable of producing medical meltblown cloth in the country, with an average daily output of about 100 tons
.
As the new production lines of Sinopec and other companies are completed and put into operation, the output of meltblown cloth is expected to increase in the next week, alleviating the tight supply and demand situation
.
Production of alternative materials
Production of alternative materialsIn addition to adding new production lines, some polymer material companies are rushing to develop new alternative materials that can replace meltblown cloth to ease the tight supply and demand of meltblown cloth
.
Expanded PTFE
Expanded PTFEChina National Chemical Corporation has recently developed a new material of expanded polytetrafluoroethylene, which has the ability to isolate N95 or KN95, has good air permeability, and can be used multiple times
.
According to China National Chemical Corporation, expanded polytetrafluoroethylene was originally used in high-end fields such as aerospace, and the price was relatively high.
Recently, due to the continuous increase in the price of meltblown cloth, it has the conditions for market promotion
.
Polyimide Nanofiber Aerogel Film
Polyimide Nanofiber Aerogel FilmThe polyimide nano-aerogel membrane jointly developed and produced by Jiangxi Xiancai Nanofiber Technology Co.
, Ltd.
and Changchun Gaoqi Polyimide Material Co.
, Ltd.
has passed all tests, and fully meets the requirements of particulate matter and bacteria filtration efficiency of more than 99% and filtration resistance.
Eligible three indicators
.
Jiangxi Xiancai Nanofiber Technology Co.
, Ltd.
and Changchun Gaoqi Polyimide Material Co.
, Ltd.
have created a self-supporting polyimide nanofiber aerogel film product by virtue of their accumulation in polyimide materials and nano-electrospinning large-scale entrepreneurship.
, has been listed as a cooperative enterprise in Beijing's national major epidemic scientific and technological research projects
.
According to the material developer, the market advantage of aerogel membranes instead of meltblown cloth filtration technology is mainly to meet the national long-term storage needs for strategic material reserves, as well as differentiated applications in the field of washable and reusable masks
.
The polyimide nano-aerogel membrane filter material can reuse masks and reduce material waste
.
Relevant experts believe that as the pearl of the pyramid tip of polymer materials, polyimide materials also have comprehensive properties: electrostatic adsorption, self-antibacterial and bacteriostatic, good biocompatibility, flame retardant, good weather resistance, and can withstand 200° High temperature washing, high temperature disinfection, resistance to most chemical solvents such as alcohol and ethylene oxide, resistance to various common disinfection methods such as ultraviolet and irradiation disinfection, and its various properties including filtration performance are not attenuated
.
Electrospinning Nanofibrous Membranes
Electrospinning Nanofibrous Membranes"This is the inspection report we just got.
The filtration effect of the electrospinning nanofiber membrane is completely comparable to that of the meltblown cloth
.
" On the morning of March 9, in the Dongcheng Industrial Cluster of Luohe City, Henan Manbrui New Material Technology The chairman of the company, Ju He, holds the inspection report issued by the Henan Medical Device Inspection Institute
.
The inspection report shows that the medical surgical masks and protective masks produced by the company using the self-developed electrospinning nanofiber membrane fully meet the relevant standards
.
Nanofiber membrane has both physical filtration and electrostatic adsorption filtration effects, not only the price is more favorable than meltblown cloth, but also the production speed is faster
.
The company's nanofiber membrane has a daily production capacity of 500 kilograms, which can be used by mask factories to produce 500,000 masks
.
"Nanofiber membrane solves the disadvantage that the charge adsorption capacity of meltblown cloth will weaken with time and environment, which will lead to the gradual attenuation of filtration function
.
" Ju Hetong introduced the advantages of nanofiber membrane instead of meltblown cloth from a professional point of view
.
At present, Luohe City is using the new mask materials developed and produced by the company to fully expand the production capacity of masks, striving to win the double victory of epidemic prevention and control and economic and social development
.
Soft Supported Nanofiber Membrane
Soft Supported Nanofiber MembraneThe team of Professor Guo Yuhai and Professor Yu Bin from the School of Textile Science and Engineering, Zhejiang Sci-Tech University jointly developed a new soft support nanofiber membrane mask material, which can effectively replace traditional meltblown materials, and the filtration effect meets the KN95 requirements in the GB2626-2006 standard
.
Compared with traditional meltblown materials, the material has the advantages of superior filtration performance, strong air permeability, high production efficiency, and easy storage
.
The new material for soft support nanofiber membrane masks developed by the Zhejiang Science and Technology team, by stretching and splitting the material to fibers with a thickness of several tens of nanometers, and controlling the fiber composition with a pore size of about 0.
1-0.
3 microns, it can directly remove bacteria, viruses, etc.
Very fine particles are intercepted outside the mask
.
It is reported that the material has a daily output of 40,000 square meters and can guarantee a daily production of about 1.
3 million masks
.
The scientific research team of Zhejiang Science and Technology is supplying the new material to many key epidemic prevention material units in Zhejiang
.
Recyclable Membrane Composites
Recyclable Membrane CompositesZhejiang Zhaohui Filtration Technology Co.
, Ltd.
(hereinafter referred to as "Zhaohui Company") has developed a new type of recyclable anti-epidemic mask material
.
The material is a low-resistance, high-efficiency, and easy-to-clean membrane composite material.
It can be used repeatedly for more than 10 times through simple high-temperature sterilization and cooking sterilization, increasing the usage rate of masks from one to 10 times
.
Based on Zhaohui's current planned daily output of 70,000 square meters (1.
75 million disposable masks can be made), it is equivalent to 17.
5 million masks per day
.
At present, the material has been tested by professional institutions, and its performance is better than that of meltblown cloth of the same level, and it has been included in the list of mask materials in Zhejiang Province
.
It is reported that Zhaohui has received orders for 300,000 square meters
.
Zhaohui Filtration was established in 2002, mainly engaged in filtration materials and devices, and its products cover air filtration, water filtration, automobile filtration and other fields
.
