Preparation method of microporous plastic catalytically degrading formaldehyde

A microporous plastic and catalytic degradation technology, applied in the field of formaldehyde purifiers, can solve problems such as affecting the efficiency of formaldehyde catalytic degraders, unable to catalyze degradation of formaldehyde, etc., and achieve the effects of avoiding secondary pollution, high specific surface area, and wide application fields.

Inactive Publication Date: 2018-10-19
ANHUI LEJIN ENVIRONMENT TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the commonly used formaldehyde purification method is to put the formaldehyde catalytic degradation agent into the box, and the box itself not only cannot catalyze the degradation of formaldehyde, but also releases formaldehyde into the air, thus affecting the efficiency of the formaldehyde catalytic degradation agent

Method used

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  • Preparation method of microporous plastic catalytically degrading formaldehyde
  • Preparation method of microporous plastic catalytically degrading formaldehyde

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preparation example Construction

[0013] The present invention also provides a preparation method of the microporous plastic that catalyzes the degradation of formaldehyde, comprising the following steps:

[0014] (1) soaking the plant fibers in an alkaline solution for 5-24 hours to obtain porous plant fibers;

[0015] (2) After uniformly mixing the porous plant fiber, negative ion powder and organic titanate in a solvent, sonicate for 15-30 minutes, and then seal and react at 80-120°C for 3-6 hours to obtain the modified porous plant fiber;

[0016] (3) Add metal powder and modified porous plant fiber to phenolic resin and mix evenly to obtain a composite phenolic resin, then add a curing agent and an acidic solution to the composite phenolic resin, then pour it into a mold, solidify and shape, and obtain catalytic degradation Formaldehyde microporous plastic.

[0017] On the one hand, negative ion powder can release energy and provide energy for catalytic reactions. On the other hand, negative ion powder a...

Embodiment 1

[0025] A microporous plastic that catalyzes the degradation of formaldehyde, made of the following parts by weight: 5 parts by weight of tourmaline powder (with a particle diameter of 200nm), 5 parts by weight of cage core pottery white carbon powder (with a particle diameter of 200nm), ramie fiber 40 parts by weight, 72 parts by weight of sodium hydroxide solution (2M), 6 parts by weight of tetramethyl titanate, 16 parts by weight of phenolic resin, 3 parts by weight of aluminum powder (particle size is 100nm), 5 parts by weight of hydrochloric acid solution (3M) , 3 parts by weight of 1,15-pentadecanediamine, and 50 parts by weight of N,N-dimethylformamide.

[0026] (1) Soak ramie fiber in sodium hydroxide solution (2M) for 12h to obtain porous ramie fiber;

[0027] (2) After mixing porous ramie fiber, tourmaline powder (particle size 200nm), cage core ceramic white carbon powder (particle size 200nm) and tetramethyl titanate in N,N-dimethylformamide , sonicated for 30 minu...

Embodiment 2

[0030] A microporous plastic that catalyzes the degradation of formaldehyde, made of the following parts by weight: 10 parts by weight of tourmaline powder (with a particle size of 500nm), 2 parts by weight of seagull powder (with a particle size of 500nm), 35 parts by weight of cotton fiber, 75 parts by weight of sodium hydroxide solution (2M), 5 parts by weight of tetraisobutyl titanate, 18 parts by weight of phenolic resin, 1 part by weight of magnesium powder (particle size is 200nm), 12 parts by weight of hydrochloric acid solution (3M), 2- 4 parts by weight of methyl-1,5-pentanediamine, and 50 parts by weight of water.

[0031] (1) Soak cotton fiber in sodium hydroxide solution (2M) for 12h to obtain porous cotton fiber;

[0032] (2) After mixing porous cotton fiber, tourmaline powder (particle size 500nm), seagull stone powder (particle size 500nm) and tetraisobutyl titanate in water, ultrasonic for 30min, then sealed and reacted at 100°C for 5h , to obtain modified po...

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Abstract

The invention relates to the technical field of formaldehyde scavengers, in particular to a preparation method of microporous plastic catalytically degrading formaldehyde. The preparation method comprises the following steps: (1), soaking plant fiber in an alkaline solution to obtain porous plant fiber; (2), uniformly mixing the porous plant fiber, negative ion powder and organic titanate in a solvent, and then performing a thermal reaction to obtain modified porous plant fiber; (3), adding metal powder and the modified porous plant fiber into phenolic resin, uniformly mixing to obtain composite phenolic resin, then adding a curing agent and an acidic solution into the composite phenolic resin, and then pouring into a mould, and performing curing moulding to obtain the microporous plasticcatalytically degrading the formaldehyde. The microporous plastic catalytically degrading the formaldehyde can be processed into parts with a variety of shapes, can permanently and thoroughly purify the formaldehyde in a room, and has a wide application prospect.

Description

technical field [0001] The invention relates to the technical field of formaldehyde purifiers, in particular to a method for preparing microporous plastics that catalyze and degrade formaldehyde. Background technique [0002] Formaldehyde is one of the main pollutants in volatile organic pollutants (VOCs), especially widely present in indoor environments. The harm of formaldehyde to the human body depends on its concentration. It irritates the mucous membrane of the eyes at low concentrations, stimulates the upper respiratory tract at slightly higher concentrations, and causes cough, chest tightness, headache and nausea. At higher concentrations, it can cause rhinitis, pharyngitis, emphysema, and lung cancer. even death. At present, it has been identified as a carcinogenic and teratogenic substance by the World Health Organization. The health problems caused by indoor environmental pollution caused by formaldehyde have increasingly become a new focus of public attention. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L97/02C08L1/02C08L61/06C08K3/08C08K3/22C08K3/38
CPCC08L97/02C08K2003/0812C08K2003/0856C08K2003/0893C08K2003/2241C08K2003/387C08K2201/011C08L1/02C08L61/06C08K3/22C08K3/08C08K3/38
Inventor 郭常青
Owner ANHUI LEJIN ENVIRONMENT TECH CO LTD
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