Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of acrylate foam polymer replacing pva collodion and preparation method thereof

An acrylate and polymer technology, applied in the field of acrylate foam polymer and its preparation to replace PVA collodion, can solve the problems of collodion performance meeting requirements, poor water resistance, generation of acidic industrial waste water, etc., and achieve perfect cross-linking effect Effect

Active Publication Date: 2021-10-15
JIANGSU RUIKANG NEW MATERIAL TECH CO LTD
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The production process disclosed in the above two patent documents is simpler than the traditional PVA collodion material production process, and less starch or no starch is added in the preparation process, although the production cost of the enterprise is reduced, and the substances that pollute the water quality in the post-treatment process are reduced. However, there are still a large amount of acidic industrial wastewater containing formaldehyde
[0007] Although changing the pore-making method can improve the emission of high VOCs, because polyvinyl alcohol contains a large number of hydroxyl groups, its water resistance is poor, and it is difficult for other cross-linking processes to meet the requirements of the collodion except for the cross-linking process of acetal under acidic conditions.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of acrylate foam polymer replacing pva collodion and preparation method thereof
  • A kind of acrylate foam polymer replacing pva collodion and preparation method thereof
  • A kind of acrylate foam polymer replacing pva collodion and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0074] 2. Preparation of auxiliary agents

[0075] (1) Preparation of PETMP 50% emulsion

[0076] Dissolve 1.5 parts of EFS-1340 and 0.5 parts of OT in 100 parts of water and completely dissolve, then add 100 parts of PETMP while stirring and shearing with a high-shear emulsifier, and shear at high speed for 5 minutes after the addition, and filter after the emulsion is stable spare.

[0077] (2) Configuration of 5% zinc acetate aqueous solution

[0078] Dissolve 5 parts of zinc acetate in 95 parts of water for later use.

[0079] (3) Low temperature composite blowing agent

[0080] Blend and grind 100 parts of sodium bicarbonate and 100 parts of citric acid after dehydration and drying under anhydrous conditions, and sieve through 120 meshes, wrap with molten No. Grind while cooling down, and continuously volatilize absolute ethanol, and finally prepare fine particles wrapped in white wax, and pass through an 80-mesh sieve for later use.

[0081] (4) Configuration of hea...

Embodiment 1

[0087] 1. Formula of ultra-low temperature polymerized acrylate thermal emulsion:

[0088] (1) bottoming

[0089]

[0090] (2) Pre-emulsification

[0091]

[0092]

[0093] (3) Initiator

[0094] Ammonium persulfate (APS) 0.3;

[0095] Tetramethylethylenediamine (TMED) 0.125;

[0096] water 25.

[0097] 2. The preparation process of ultra-low temperature polymerized acrylate thermal emulsion is as follows:

[0098] (1) First, mix water 75 and 1,4-di(2-ethylhexyl) succinate sodium sulfonate (dioctyl sodium sulfosuccinate), nano Zinc oxide aqueous dispersion, sodium bicarbonate, APS, TMED, and the mixed monomers of ethyl acrylate, butyl acrylate, and methyl methacrylate in the primer part, keep the temperature at 20°C for polymerization reaction, and wait for the polymer to blue light appears;

[0099] (2) Then according to the pre-emulsification formula, take 50% of water, add emulsifier and other additives and itaconic acid, add other monomers after complete di...

Embodiment 2

[0114] 1, a kind of preparation ratio of the acrylate foam polymer that replaces PVA collodion is:

[0115]

[0116]

[0117] 2, a kind of preparation technology of the acrylate foam polymer that replaces PVA collodion comprises:

[0118] (1) Disperse DBU in PETMP 50% emulsion first, then neutralize the ultra-low temperature polymerized acrylate heat-sensitive emulsion with ammonia water to pH = 8, and add PETMP 50% and DBU dropwise while stirring, and stir for 15- 30min, so that the dispersion is uniform;

[0119] (2) adding a thickener to the above-mentioned latex while stirring with a dissolving slurry, and continuing to stir for 30 minutes, so that the latex is thickened to 2500-3000cP (mPa·s), and a modified glue is prepared;

[0120] (3) Then add the heat sensitizer and low-temperature composite foaming agent into the modified mortar while stirring, and use a high-speed dissolving slurry to stir at a high speed of 2000 / min for 15-20 minutes for mechanical foaming....

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
quality scoreaaaaaaaaaa
Login to View More

Abstract

The invention discloses an acrylate foam polymer replacing PVA collodion and a preparation method thereof. The preparation method comprises: neutralizing an ultra-low temperature polymerized acrylate heat-sensitive emulsion with ammonia water until the pH is 8-9, and adding the acrylate foam dropwise under stirring conditions. Linking agent accelerator, crosslinking agent 1 and / or crosslinking agent 2, then add filler slurry, stir and mix evenly; use thickener to thicken the emulsion viscosity to 2500‑3000cP to obtain glue; Chemical agent and low-temperature composite foaming agent are added to the glue successively, and then stirred at a high speed for mechanical foaming; the glue after mechanical foaming is poured into the mold, and placed in an oven for 6-12 hours to carry out demulsification, foaming, and exchange. Linking and curing molding; the cured and molded foam polymer is pressed dry to remove water, and after drying, it becomes an acrylic foam polymer instead of PVA collodion. In the present invention, demulsification, foaming and pore making, and cross-linking and vulcanization are carried out simultaneously under specific technological conditions to prepare highly hydrophilic, high porosity, and high-strength acrylic foam collodion plastics.

Description

technical field [0001] The invention relates to the application of foam polymer materials and the manufacturing fields of cleaning products, in particular to an acrylic foam polymer replacing PVA collodion and a preparation method thereof. Background technique [0002] A material composed of a cell body and a solid frame that connects the cell body interpenetrating into a network structure, and a polygonal cell structure material arranged in a three-dimensional form is called a foam material. As a kind of foaming material, foam plastic is formed by dispersing a large number of gas micropores in the polymer. A class of polymer composite materials with a pore structure can also be called a composite plastic with gas as a filler. Collodion mop is exactly the application of a kind of open-cell foam in the field of civil sanitary ware. [0003] At present, the production of industrialized PVA collodion is prepared by starch process, and the cell formation process of PVA collodi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08J9/08C08J3/24C08L33/08C08K13/02C08K5/37C08K5/098C08F220/18C08F220/14C08F220/32C08F222/02C08F220/06
CPCC08J9/08C08J9/0095C08J9/0033C08J3/24C08F220/18C08K13/02C08K5/37C08K5/098C08J2203/02C08J2203/22C08J2201/026C08J2333/08C08F220/1804
Inventor 江永波候宇坤任华潘毅
Owner JIANGSU RUIKANG NEW MATERIAL TECH CO LTD