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Glass fiber filter material modifier, preparation method and application thereof

A modifier and filter material technology, applied in separation methods, chemical instruments and methods, filtration separation, etc., can solve problems such as SiO cannot be prevented, and achieve the effects of promoting contact, inhibiting precipitation, and improving adhesion

Inactive Publication Date: 2020-07-24
NANJING FIBERGLASS RES & DESIGN INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the fact that the existing glass fiber filter material modification method cannot make the glass fiber surface form a dense film that isolates the glass fiber from the external environment, resulting in the inability to prevent SiO 2 Precipitated defects, thus providing a glass fiber filter material modifier

Method used

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  • Glass fiber filter material modifier, preparation method and application thereof
  • Glass fiber filter material modifier, preparation method and application thereof
  • Glass fiber filter material modifier, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The present embodiment provides a kind of glass fiber filter material modifier, and its raw material is composed of:

[0033] Pure acrylic resin 75g; Organic fluorine modified styrene-acrylic resin 75g; Carboxylic acid type polyurethane resin 30g; Polycarbodiimide 50g; Tris (2-methoxyethoxy) vinyl silane coupling agent 4.17g; Aminopropyltriethoxysilane coupling agent 0.83g; polyethylene glycol polyol 2g; octylphenol ethoxylate 1.67g; isomeric fatty alcohol ether wetting agent 0.83g; polydimethylsiloxane alkane 0.5g; deionized water 760g.

[0034] Adopt the preparation method of the glass fiber filter material modifier of above-mentioned raw material composition, comprise the steps:

[0035] (1) Add 1 / 2 volume of deionized water into the first container, then add pure acrylic resin, organic fluorine-modified styrene-acrylic resin and carboxylic acid polyurethane resin in sequence, and stir at a speed of 250r / min until the system well mixed;

[0036] (2) Add the remain...

Embodiment 2

[0039] The present embodiment provides a kind of glass fiber filter material modifier, and its raw material is composed of:

[0040] Silicone acrylic resin 28.57g; epoxy modified styrene-acrylic resin 71.43g; non-ionic polyurethane resin 150g; aziridine 40g; water-based isocyanate 40g; titanate coupling agent 311W 9g; sodium polyacrylate 5g; Wetting agent 4g; polyether modified polysiloxane 2g; deionized water 650g.

[0041] Adopt the preparation method of the glass fiber filter material modifier of above-mentioned raw material composition, comprise the steps:

[0042] (1) Add 1 / 3 volume of deionized water into the first container, then add silicone-acrylic resin, epoxy-modified styrene-acrylic resin and non-ionic polyurethane resin in turn, and stir at a speed of 100r / min until the system well mixed;

[0043](2) Add the remaining deionized water into the second container, add titanate coupling agent 311W at a speed of 500r / min, and stir for 5min to obtain a coupling agent p...

Embodiment 3

[0046] The present embodiment provides a kind of glass fiber filter material modifier, and its raw material is composed of:

[0047] 50g of tert-acrylic resin; 36g of ammonium ion polyurethane resin; 54g of sulfonium ion polyurethane resin; 17g of water-based oxazoline crosslinking agent; 0.37g of γ-methacryloxypropyltrimethoxysilane coupling agent; 1g of alkylphenol polyether phosphate; 0.4g of isomeric fatty alcohol ether wetting agent; 0.1g of polydimethylsiloxane; Deionized water 840g.

[0048] Adopt the preparation method of the glass fiber filter material modifier of above-mentioned raw material composition, comprise the steps:

[0049] (1) Add 2 / 3 volume of deionized water into the first container, then add tert-acrylic resin, ammonium ion polyurethane resin and sulfonium ion polyurethane resin in sequence, and stir at a speed of 500r / min until the system is evenly mixed;

[0050] (2) Add the remaining deionized water to the second container, adjust the pH value to 3....

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Abstract

The invention relates to the technical field of filtration and separation and discloses a glass fiber filter material modifier, a preparation method and application thereof. A solid material of the modifier accounts for 6.7-23% of the total mass of the modifier, and the balance is water; the solid material includes 50-150 parts by weight of acrylic resin and 17-80 parts by weight of crosslinking agents. According to the glass fiber filter material modifier, the preparation method and the application thereof, the crosslinking agents are added into the acrylic resin for modification, a dense film with a network structure is formed after curing, and the glass fiber is separated from the external environment, so that the corrosion of water medium to the glass fiber is reduced, SiO2 is effectively inhibited from being precipitated, and the service life of the filter material is prolonged; meanwhile, the crosslinking agents are added into the acrylic resin, so that the molecular weight of the acrylic resin is improved; and a hydrophilic group is sealed, so that the water resistance and the solvent resistance of the resin are greatly improved, the sensitivity of the resin to temperature can be reduced, the dense film is effectively avoided from falling off, and the leaching resistance of the glass fiber to the SiO2 is further improved.

Description

technical field [0001] The invention relates to the technical field of filtration and separation, in particular to a glass fiber filter material modifier, a preparation method and an application thereof. Background technique [0002] Glass fiber has excellent characteristics such as finer diameter, excellent dimensional stability, not easily deformed, non-adhesive, and good chemical stability. The glass fiber filter material formed by it has extremely high filtration efficiency and low resistance, so it is widely used It is used in the filtration of fluids and occupies an unshakable position among many filtration and separation materials. However, the main component of glass fiber is SiO 2 , the main skeleton is [SiO 2 ] 4 The formed network structure has a very large specific surface area, that is, the unbroken Si-O-Si bond on the surface and the broken Si-O-Si are very large, which shows that it is very easy to adsorb water molecules, and it is easy to precipitate SiO i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/263D06M15/233D06M15/564D06M15/61D06M13/513D06M15/53D06M15/643D06M15/356D06M13/35D06M13/395D06M15/647B01D39/14
CPCD06M15/263D06M15/233D06M15/564D06M15/61D06M13/5135D06M13/513D06M15/53D06M15/643D06M15/3568D06M13/35D06M13/395D06M15/647B01D39/14B01D2239/0414
Inventor 吴耀春钱慧杨超姚嘉兰石玉强李建
Owner NANJING FIBERGLASS RES & DESIGN INST CO LTD
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