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Is ExxonMobil non-woven polypropylene 3155E5 so difficult to surpass?
by：Sunshine
2021-04-09
The new capacity of polypropylene plants has increased sharply. It is estimated that 10 million tons of new capacity will be added from 2019 to 2020. Newly-built petrochemical enterprises will list non-woven polypropylene as one of the key development brands.
Lightweight, soft, and functional non-woven fabrics have become a hot spot for development. Polypropylene resin is required to have better fluidity and meet the requirements of German Reifen’s 3rd and 4th high-speed imported high-speed production lines , The fiber can reach 1.0～1.5D, and even reach 0.5～0.9D.
Auxiliary development hotspot 1:
Peroxide degradation agent with low odor, high efficiency and high flow
EXXON3155E5, SECCO 2040, Luoyang Petrochemical Y35X and other imported and domestic non-woven polypropylene special materials are produced by peroxide degradation method.
The peroxide breaks the polypropylene molecular chain, improves the melt index, makes the molecular weight distribution more uniform, and improves the spinnability.
EXXON3155E3, as a benchmark grade for non-woven fabrics, has the advantages of low odor and good spinnability, and petrochemical companies have followed suit. In addition to catalysts, polymerization processes, propylene raw materials and other influencing factors, peroxide degradation agents with high degradation efficiency, low peroxide residues, and low odor are the hot spots for development.
Liquid peroxides are commonly used, such as peroxide 101. With the continuous improvement of transportation safety and storage safety requirements, liquid peroxides have the risk of flammability and explosion. Solid peroxides have been Become the preferred product of petrochemical enterprises.
Auxiliary manufacturers can pay attention to the development of solid peroxide masterbatch, pay attention to safety, low odor, low residue, low dosage, and meet the requirements of petrochemical enterprises to add additives
Hot spot of auxiliary agent development 2:
Development of high-efficiency, anti-tarnishing antioxidant package
High-end medical and sanitary non-woven fabrics have high requirements for whiteness and yellowing resistance. Peroxide is added during production, which consumes antioxidants. At the same time, it is easy to cause yellowing of polypropylene resin, which makes production The color of the non-woven fabric is yellow or red. When non-woven fabrics are stored in a hot and humid environment, they are prone to discoloration, resulting in unqualified products.
Auxiliary manufacturers can focus on the development of high-efficiency antioxidants that are resistant to discoloration, which can stabilize the melt index of polypropylene, ensure that the oxidation induction period indicators are qualified, and ensure the stability of production, so that polypropylene has better processing during spinning Fluidity, non-woven fabric has better appearance, storage stability and quality.
Auxiliary Development Hotspot 3: High Flow Processing Aid
There are few reports that petrochemical companies add lubricants and processing aids to improve fluidity and spinnability when producing polypropylene for non-woven fabrics.
It is also difficult for foreign petrochemical companies to obtain relevant processing aid information due to technical confidentiality reasons.
Auxiliary manufacturers can learn from the method of adding processing aids such as PPA organic fluorine additives to polypropylene for films and pipes to improve the efficiency of blown film and pipe extrusion, and study how adding processing aids to polypropylene can improve spinnability Sexual effect.
The really anticipated effect is the use of processing aids (non-fluorine-based additives) to replace peroxides to achieve the effect of high-speed fine-denier spinning.
Auxiliary development hotspot 4:
Development of safe, non-irritating, antibacterial additives
With the progress of society, non-woven sanitary products for medical care, women, children, and the elderly have put forward higher requirements for antibacterial, antibacterial, and odor resistance. At present, the petrochemical plant has tried to develop specialized materials for antibacterial polypropylene non-woven fabrics. Yangzi Petrochemical and Zhenhai Refinery have made active attempts to achieve the scale of batch production of 100 tons of antibacterial polypropylene resin.
The antibacterial polypropylene special material N40Q developed by Zhenhai Refinery and Chemical has been promoted and applied in Shanghai Fengwei Garment Accessories Co., Ltd., Jinjiang Beststar and other enterprises, and the feedback is good.
Auxiliary manufacturers can focus on the development of antibacterial additives with high safety, discoloration resistance, small particle size, and good dispersion, which can meet the needs of high-speed production of fine-denier antibacterial non-woven fabrics.
Lightweight, soft, and functional non-woven fabrics have become a hot spot for development. Polypropylene resin is required to have better fluidity and meet the requirements of German Reifen’s 3rd and 4th high-speed imported high-speed production lines , The fiber can reach 1.0～1.5D, and even reach 0.5～0.9D.
Auxiliary development hotspot 1:
Peroxide degradation agent with low odor, high efficiency and high flow
EXXON3155E5, SECCO 2040, Luoyang Petrochemical Y35X and other imported and domestic non-woven polypropylene special materials are produced by peroxide degradation method.
The peroxide breaks the polypropylene molecular chain, improves the melt index, makes the molecular weight distribution more uniform, and improves the spinnability.
EXXON3155E3, as a benchmark grade for non-woven fabrics, has the advantages of low odor and good spinnability, and petrochemical companies have followed suit. In addition to catalysts, polymerization processes, propylene raw materials and other influencing factors, peroxide degradation agents with high degradation efficiency, low peroxide residues, and low odor are the hot spots for development.
Liquid peroxides are commonly used, such as peroxide 101. With the continuous improvement of transportation safety and storage safety requirements, liquid peroxides have the risk of flammability and explosion. Solid peroxides have been Become the preferred product of petrochemical enterprises.
Auxiliary manufacturers can pay attention to the development of solid peroxide masterbatch, pay attention to safety, low odor, low residue, low dosage, and meet the requirements of petrochemical enterprises to add additives
Hot spot of auxiliary agent development 2:
Development of high-efficiency, anti-tarnishing antioxidant package
High-end medical and sanitary non-woven fabrics have high requirements for whiteness and yellowing resistance. Peroxide is added during production, which consumes antioxidants. At the same time, it is easy to cause yellowing of polypropylene resin, which makes production The color of the non-woven fabric is yellow or red. When non-woven fabrics are stored in a hot and humid environment, they are prone to discoloration, resulting in unqualified products.
Auxiliary manufacturers can focus on the development of high-efficiency antioxidants that are resistant to discoloration, which can stabilize the melt index of polypropylene, ensure that the oxidation induction period indicators are qualified, and ensure the stability of production, so that polypropylene has better processing during spinning Fluidity, non-woven fabric has better appearance, storage stability and quality.
Auxiliary Development Hotspot 3: High Flow Processing Aid
There are few reports that petrochemical companies add lubricants and processing aids to improve fluidity and spinnability when producing polypropylene for non-woven fabrics.
It is also difficult for foreign petrochemical companies to obtain relevant processing aid information due to technical confidentiality reasons.
Auxiliary manufacturers can learn from the method of adding processing aids such as PPA organic fluorine additives to polypropylene for films and pipes to improve the efficiency of blown film and pipe extrusion, and study how adding processing aids to polypropylene can improve spinnability Sexual effect.
The really anticipated effect is the use of processing aids (non-fluorine-based additives) to replace peroxides to achieve the effect of high-speed fine-denier spinning.
Auxiliary development hotspot 4:
Development of safe, non-irritating, antibacterial additives
With the progress of society, non-woven sanitary products for medical care, women, children, and the elderly have put forward higher requirements for antibacterial, antibacterial, and odor resistance. At present, the petrochemical plant has tried to develop specialized materials for antibacterial polypropylene non-woven fabrics. Yangzi Petrochemical and Zhenhai Refinery have made active attempts to achieve the scale of batch production of 100 tons of antibacterial polypropylene resin.
The antibacterial polypropylene special material N40Q developed by Zhenhai Refinery and Chemical has been promoted and applied in Shanghai Fengwei Garment Accessories Co., Ltd., Jinjiang Beststar and other enterprises, and the feedback is good.
Auxiliary manufacturers can focus on the development of antibacterial additives with high safety, discoloration resistance, small particle size, and good dispersion, which can meet the needs of high-speed production of fine-denier antibacterial non-woven fabrics.
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