Hard plastic material for machining ammonium hydrogen fluoride container

Abstract

The invention discloses a hard plastic material for machining an ammonium hydrogen fluoride container and relates to the technical field of chemical regent containers. The hard plastic material is prepared from, by weight, 20-25 parts of fluorocarbon resin, 10-15 parts of polyamide resin, 10-15 parts of polyethylene glycol terephthalate, 5-10 parts of linear low density polyethylene, 3-6 parts of fly ash, 3-6 parts of ceramic ultrafine powder, 2-4 parts of hexakis(methoxymethyl)melamine, 2-4 parts of a toughening agent, 1-2 parts of sepiolite fibers, 1-2 parts of molecular sieve raw powder, 0.5-1 part of cetyltrimethylammonium chloride and 0.05-0.1 part of lanthanum oxide. The plastic material can be resistant to strong acidity of ammonium bifluoride, the phenomenon of corrosion cannot occur when the container contains ammonium bifluoride, the container cannot chemically react with the ammonium bifluoride, and thus mass and purity of the contained ammonium bifluoride are guaranteed.

Description

[0001] Technical field:

[0002] The invention relates to the technical field of chemical reagent containers, in particular to a hard plastic material for processing ammonium bifluoride holding containers.

[0003] Background technique:

[0004] Ammonium bifluoride is a corrosive chemical that decomposes toxic fluoride, nitrogen oxides and ammonia gas when exposed to moisture and water. Soluble in water is a weak acid, can dissolve glass, slightly soluble in alcohol, very easily soluble in cold water, the aqueous solution is strongly acidic, can sublimate at higher temperatures, can corrode glass, is corrosive to the skin, and is poisonous, so glass cannot be used in full bloom. In response to this situation, our company has developed a hard plastic material for ammonium bifluoride container processing, which has strong corrosion resistance to ammonium bifluoride, and its own stability is good, and will not affect the purity of ammonium bifluoride.

[0005] Invention content:...

Examples

Embodiment 1

[0022] (1) Add 10 parts of polyethylene terephthalate and 2 parts of toughening agent to 20 parts of fluorocarbon resin, and heat up to 130-135 ° C at a heating rate of 5 ° C / min and mix for 30 minutes, then add 5 parts of fly ash and 1 part of sepiolite fiber, continue to keep warm and mix for 5 minutes to obtain material I;

[0023] (2) Add 5 parts of linear low density polyethylene and 2 parts of hexamethylolmelamine hexamethyl ether to 10 parts of polyamide resin, and heat up to 125-130 ° C at a heating rate of 5 ° C / min and mix for 15 minutes, then add 5 parts of ceramic micropowder and 0.5 part of cetyltrimethylammonium chloride, continue to insulate and mix for 5 minutes to obtain material II;

[0024] (3) Add material II, 2 parts of molecular sieve raw powder and 0.1 part of lanthanum oxide to material I, mix well, send the resulting mixture into a mixer, and knead at 125-130°C for 5 minutes, and continue to stand for 30 minutes Mix for 3 minutes to obtain a hard ...

Embodiment 2

[0028] (1) Add 10 parts of polyethylene terephthalate and 3 parts of toughening agent to 25 parts of fluorocarbon resin, and heat up to 130-135 ° C at a heating rate of 5 ° C / min and mix for 30 minutes, then add 5 parts of fly ash and 1 part of sepiolite fiber, continue to keep warm and mix for 5 minutes to obtain material I;

[0029] (2) Add 5 parts of linear low density polyethylene and 2 parts of hexamethylolmelamine hexamethyl ether to 10 parts of polyamide resin, and heat up to 125-130 ° C at a heating rate of 5 ° C / min and mix for 15 minutes, then add 5 parts of ceramic micropowder and 0.5 part of cetyltrimethylammonium chloride, continue to insulate and mix for 5 minutes to obtain material II;

[0030] (3) Add material II, 1 part of molecular sieve raw powder and 0.1 part of lanthanum oxide to material I, mix thoroughly, and send the resulting mixture into a mixer, and knead at 125-130 °C for 5 minutes, and continue to stand for 30 minutes Mix for 3 minutes to obta...

Embodiment 3

[0034] Utilize the hard plastic material made in embodiment 1 and embodiment 2 to process and make ammonium bifluoride holding container, ammonium bifluoride is stored for 2 years, and respectively in 3 months, 6 months, 12 months, 18 months and 24 months to monitor the storage situation.

[0035] The monitoring results showed that the plastic containers made during the 2-year storage period did not appear to be corroded by ammonium bifluoride, and the purity of the stored ammonium bifluoride did not change, and no new impurities were introduced.

[0001] Technical field:

[0002] The invention relates to the technical field of chemical reagent containers, in particular to a hard plastic material for processing ammonium bifluoride holding containers.

[0003] Background technique:

[0004] Ammonium bifluoride is a corrosive chemical that decomposes toxic fluoride, nitrogen oxides and ammonia gas when exposed to moisture and water. Soluble in water is a weak acid, can dissolve glass, slightly soluble in alcohol, very easily soluble in cold water, the aqueous solution is strongly acidic, can sublimate at higher temperatures, can corrode glass, is corrosive to the skin, and is poisonous, so glass cannot be used in full bloom. In response to this situation, our company has developed a hard plastic material for ammonium bifluoride container processing, which has strong corrosion resistance to ammonium bifluoride, and its own stability is good, and will not affect the purity of ammonium bifluoride.

[0005] Invention content:...

Examples

Embodiment 1

[0022] (1) Add 10 parts of polyethylene terephthalate and 2 parts of toughening agent to 20 parts of fluorocarbon resin, and heat up to 130-135 ° C at a heating rate of 5 ° C / min and mix for 30 minutes, then add 5 parts of fly ash and 1 part of sepiolite fiber, continue to keep warm and mix for 5 minutes to obtain material I;

[0023] (2) Add 5 parts of linear low density polyethylene and 2 parts of hexamethylolmelamine hexamethyl ether to 10 parts of polyamide resin, and heat up to 125-130 ° C at a heating rate of 5 ° C / min and mix for 15 minutes, then add 5 parts of ceramic micropowder and 0.5 part of cetyltrimethylammonium chloride, continue to insulate and mix for 5 minutes to obtain material II;

[0024] (3) Add material II, 2 parts of molecular sieve raw powder and 0.1 part of lanthanum oxide to material I, mix well, send the resulting mixture into a mixer, and knead at 125-130°C for 5 minutes, and continue to stand for 30 minutes Mix for 3 minutes to obtain a hard ...

Embodiment 2

[0028] (1) Add 10 parts of polyethylene terephthalate and 3 parts of toughening agent to 25 parts of fluorocarbon resin, and heat up to 130-135 ° C at a heating rate of 5 ° C / min and mix for 30 minutes, then add 5 parts of fly ash and 1 part of sepiolite fiber, continue to keep warm and mix for 5 minutes to obtain material I;

[0029] (2) Add 5 parts of linear low density polyethylene and 2 parts of hexamethylolmelamine hexamethyl ether to 10 parts of polyamide resin, and heat up to 125-130 ° C at a heating rate of 5 ° C / min and mix for 15 minutes, then add 5 parts of ceramic micropowder and 0.5 part of cetyltrimethylammonium chloride, continue to insulate and mix for 5 minutes to obtain material II;

[0030] (3) Add material II, 1 part of molecular sieve raw powder and 0.1 part of lanthanum oxide to material I, mix thoroughly, and send the resulting mixture into a mixer, and knead at 125-130 °C for 5 minutes, and continue to stand for 30 minutes Mix for 3 minutes to obta...

Embodiment 3

[0034] Utilize the hard plastic material made in embodiment 1 and embodiment 2 to process and make ammonium bifluoride holding container, ammonium bifluoride is stored for 2 years, and respectively in 3 months, 6 months, 12 months, 18 months and 24 months to monitor the storage situation.

[0035] The monitoring results showed that the plastic containers made during the 2-year storage period did not appear to be corroded by ammonium bifluoride, and the purity of the stored ammonium bifluoride did not change, and no new impurities were introduced.