CN106378056A - Pigment dispersing agent prepared by amphiphilic precipitated silica - Google Patents

Abstract

The invention discloses a pigment dispersing agent prepared by the amphiphilic precipitated silica and relates to the technical field of precipitated silica. The pigment dispersing agent is prepared from the following raw materials in parts by weight: 15-20 parts of amphiphilic precipitated silica, 10-15 parts of isopropyl alcohol, 6-11 parts of cetyl ethyl hexanoate, 5-9 parts of terpene resin, 5-9 parts of polyvinylpyrrolidone, 4-7 parts of hydrogenated castor oil, 3-6 parts of microcrystalline wax, 3-6 parts of polyethylene glycol 400, 2-4 parts of sodium cocoanutylglutamate, 2-4 parts of sodium polyacrylate, 2-4 parts of turpentine oil, 1-2 parts of isooctyl oleate, 1-2 parts of coupling agent of organic titanate, 0.5-1 part of nano gelatine powders, 0.5-1 part of urea, and 0.5-1 part of sulfurized lard oil. According to the invention, by means of the pigment dispersing agent, the pigment is uniformly dispersed in a binder, so that the particles of the pigment are uniformly suspended in the binder for a long time. Therefore, during the storage process of a colored paint, the pigment flocculation phenomenon is avoided. Moreover, the fluidity and the thermal stability of the colored paint are improved, so that the storage quality and the painting effect of the colored paint can be ensured.

Description

A kind of pigment dispersing agent of utilization parental type precipitated silica preparation

Technical field：

The present invention relates to precipitated silica technical field is and in particular to a kind of prepared using parental type precipitated silica Pigment dispersing agent.

Background technology：

Pigment dispersing agent in addition to there is the same wetting action of wetting agent, its active group one end can adsorb be ground into thin The surface of pigments of little micro- material, other end solvation enters paint base and forms adsorption layer, produces charge repulsion or entropy repulsion, makes pigment grain The long-term dispersion of son is suspended in paint base, it is to avoid flocculate again, hereby it is ensured that the storage of made paint system is stable.But answered at present Make the long-term dispersion of pigment particles be suspended in the requirement in paint base with the stability difference of dispersant it is impossible to reach, stored in colored paint Pigment sedimentation and the phenomenon that separate out occur in journey, therefore needs exploitation novel pigment dispersant badly.

Content of the invention：

The technical problem to be solved is to provide the utilization parental type that a kind of dispersion effect is good and stability is strong The pigment dispersing agent of precipitated silica preparation.

The technical problem to be solved to be realized using following technical scheme：

A kind of pigment dispersing agent of utilization parental type precipitated silica preparation, is made up of the raw material of following parts by weight： Parental type precipitated silica 15-20 part, isopropanol 10-15 part, cetanol ethylhexoate 6-11 part, terpene resin 5-9 part, Polyvinylpyrrolidone 5-9 part, rilanit special 4-7 part, microwax 3-6 part, PEG400 3-6 part, cocoyl paddy Propylhomoserin sodium 2-4 part, Sodium Polyacrylate 2-4 part, turpentine oil 2-4 part, isooctyl oleate 1-2 part, titanate coupling agent 1-2 part, receive Rice glue powder 0.5-1 part, urea 0.5-1 part, sulfurized lard 0.5-1 part；

The preparation method of described parental type precipitated silica is：Under stirring in the water glass solution of mass concentration 40% Dropping concentrated hydrochloric acid, controls solution ph in 5-6, microwave treatment 5-10min under microwave frequency 2450MHz, power 700W, so Lowered the temperature with 10 DEG C/min under ice-water bath afterwards, after temperature is down to 0-5 DEG C, insulation standing 3-5h, is layered to obtain precipitated silica, And wash three times, then adding hydroxypropyl methyl cellulose and polyvinyl butyral resin in gained precipitated silica, mixing is all Continue at microwave frequency 2450MHz, microwave treatment 5-10min under power 700W after even, treat that gained mixture naturally cools to 45- Add polypropylene glycol diglycidyl ether and tea seed powder after 50 DEG C, be sufficiently mixed uniformly, be dried at 100-105 DEG C Entirely, obtain final product parental type precipitated silica.

Its preparation method comprises the steps：

(1) add terpene resin and microwax in parental type precipitated silica, be first heated to 90-100 DEG C of insulation mixed Close 5min, add rilanit special and nanometer rubber powder, continue to be heated to 120-130 DEG C of insulation mixing 10min, obtain final product material I；

(2) add cetanol ethylhexoate and isooctyl oleate in isopropanol, be heated to reflux state under stirring and protect Temperature processes 10min, adds turpentine oil, titanate coupling agent and sulfurized lard, continues backflow insulated and stirred 10min, obtains final product thing Material II；

(3) add material I, PEG400 and Sodium Polyacrylate in material II, be sufficiently mixed after microwave frequency Microwave treatment 10min under 2450MHz, power 700W, adds polyethylene after finally thing temperature to be mixed naturally cools to 60-65 DEG C Pyrrolidones, sodium cocoyl glutamate and urea, are sufficiently mixed uniformly.

The invention has the beneficial effects as follows：The present invention, with parental type precipitated silica as primary raw material, is aided with multiple auxiliary agents Prepared pigment dispersing agent, this dispersant can not only promote pigment dispersed in paint base, so that pigment particles is uniformly hanged for a long time Float in paint base, it is to avoid in colored paint, pigment flocculation phenomenon occurs in storage process；And mobility and the heat of colored paint can be strengthened Stability, thus ensure colored paint store quality and japanning effect.

Specific embodiment：

In order that technological means, creation characteristic, reached purpose and effect that the present invention realizes are easy to understand, tie below Close specific embodiment, the present invention is expanded on further.

Embodiment 1

(1) add 5 parts of terpene resins and 3 parts of microwaxes in 15 parts of parental type precipitated silicas, be first heated to 90- 100 DEG C of insulation mixing 5min, add 4 parts of rilanit specials and 1 part of nanometer rubber powder, continue to be heated to 120-130 DEG C of insulation mixed Close 10min, obtain final product material I；

(2) add 6 parts of cetanol ethylhexoates and 1 part of isooctyl oleate in 10 parts of isopropanols, be heated under stirring Reflux state isothermal holding 10min, adds 2 parts of turpentine oil, 1 part of titanate coupling agent and 1 part of sulfurized lard, continues backflow and protects Temperature stirring 10min, obtains final product material II；

(3) add material I, 3 parts of PEG400s and 3 parts of Sodium Polyacrylates in material II, be sufficiently mixed after microwave Microwave treatment 10min under frequency 2450MHz, power 700W, adds 5 after finally thing temperature to be mixed naturally cools to 60-65 DEG C Part polyvinylpyrrolidone, 3 parts of sodium cocoyl glutamate and 0.5 part of urea, are sufficiently mixed uniformly.

The preparation of parental type precipitated silica：Dense salt is dripped in the water glass solution of mass concentration 40% under stirring Acid, controls solution ph in 5-6, microwave treatment 5min under microwave frequency 2450MHz, power 700W, then in ice-water bath Under with 10 DEG C/min cooling, after temperature is down to 0-5 DEG C insulation standing 5h, be layered to obtain precipitated silica, and wash three times, then Add hydroxypropyl methyl cellulose and polyvinyl butyral resin in gained precipitated silica, after mixing, continue at microwave Microwave treatment 10min under frequency 2450MHz, power 700W, adds poly- the third two after gained mixture naturally cools to 45-50 DEG C Alcohol diglycidyl ether and tea seed powder, are sufficiently mixed uniformly, are dried completely at 100-105 DEG C, obtain final product parental type precipitation Silica.

Embodiment 2

(1) add 5 parts of terpene resins and 4 parts of microwaxes in 20 parts of parental type precipitated silicas, be first heated to 90- 100 DEG C of insulation mixing 5min, add 5 parts of rilanit specials and 0.5 part of nanometer rubber powder, continue to be heated to 120-130 DEG C of insulation Mixing 10min, obtains final product material I；

(2) add 6 parts of cetanol ethylhexoates and 2 parts of isooctyl oleates in 15 parts of isopropanols, be heated under stirring Reflux state isothermal holding 10min, adds 2 parts of turpentine oil, 1 part of titanate coupling agent and 0.5 part of sulfurized lard, continues backflow Insulated and stirred 10min, obtains final product material II；

(3) add material I, 5 parts of PEG400s and 2 parts of Sodium Polyacrylates in material II, be sufficiently mixed after microwave Microwave treatment 10min under frequency 2450MHz, power 700W, adds 6 after finally thing temperature to be mixed naturally cools to 60-65 DEG C Part polyvinylpyrrolidone, 2 parts of sodium cocoyl glutamate and 1 part of urea, are sufficiently mixed uniformly.

The preparation of parental type precipitated silica：Dense salt is dripped in the water glass solution of mass concentration 40% under stirring Acid, controls solution ph in 5-6, microwave treatment 10min under microwave frequency 2450MHz, power 700W, then in ice-water bath Under with 10 DEG C/min cooling, after temperature is down to 0-5 DEG C insulation standing 5h, be layered to obtain precipitated silica, and wash three times, then Add hydroxypropyl methyl cellulose and polyvinyl butyral resin in gained precipitated silica, after mixing, continue at microwave Microwave treatment 5min under frequency 2450MHz, power 700W, adds poly- the third two after gained mixture naturally cools to 45-50 DEG C Alcohol diglycidyl ether and tea seed powder, are sufficiently mixed uniformly, are dried completely at 100-105 DEG C, obtain final product parental type precipitation Silica.

General principle and principal character and the advantages of the present invention of the present invention have been shown and described above.The technology of the industry , it should be appreciated that the present invention is not restricted to the described embodiments, the simply explanation described in above-described embodiment and specification is originally for personnel The principle of invention, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, these changes Change and improvement both falls within scope of the claimed invention.Claimed scope by appending claims and its Equivalent thereof.

Claims (2)

1. a kind of pigment dispersing agent of utilization parental type precipitated silica preparation is it is characterised in that by following parts by weight Raw material is made：Parental type precipitated silica 15-20 part, isopropanol 10-15 part, cetanol ethylhexoate 6-11 part, terpenes Resin 5-9 part, polyvinylpyrrolidone 5-9 part, rilanit special 4-7 part, microwax 3-6 part, PEG400 3-6 part, coconut palm Oleoyl sodium glutamate 2-4 part, Sodium Polyacrylate 2-4 part, turpentine oil 2-4 part, isooctyl oleate 1-2 part, titanate coupling agent 1-2 part, nanometer rubber powder 0.5-1 part, urea 0.5-1 part, sulfurized lard 0.5-1 part；

The preparation method of described parental type precipitated silica is：Drip in the water glass solution of mass concentration 40% under stirring Concentrated hydrochloric acid, controls solution ph in 5-6, microwave treatment 5-10min under microwave frequency 2450MHz, power 700W, Ran Hou Lowered the temperature with 10 DEG C/min under ice-water bath, after temperature is down to 0-5 DEG C, insulation standing 3-5h, is layered to obtain precipitated silica, and water Wash three times, then add hydroxypropyl methyl cellulose and polyvinyl butyral resin in gained precipitated silica, after mixing Continue at microwave frequency 2450MHz, microwave treatment 5-10min under power 700W, treat that gained mixture naturally cools to 45-50 DEG C Add polypropylene glycol diglycidyl ether and tea seed powder afterwards, be sufficiently mixed uniformly, be dried completely at 100-105 DEG C, that is, Obtain parental type precipitated silica.

2. utilization parental type precipitated silica according to claim 1 preparation pigment dispersing agent it is characterised in that its Preparation method comprises the steps：

(1) add terpene resin and microwax in parental type precipitated silica, be first heated to 90-100 DEG C of insulation mixing 5min, adds rilanit special and nanometer rubber powder, continues to be heated to 120-130 DEG C of insulation mixing 10min, obtains final product material I；

(2) add cetanol ethylhexoate and isooctyl oleate in isopropanol, be heated under stirring at reflux state insulation Reason 10min, adds turpentine oil, titanate coupling agent and sulfurized lard, continues backflow insulated and stirred 10min, obtains final product material II；

(3) add material I, PEG400 and Sodium Polyacrylate in material II, be sufficiently mixed after microwave frequency Microwave treatment 10min under 2450MHz, power 700W, adds polyethylene after finally thing temperature to be mixed naturally cools to 60-65 DEG C Pyrrolidones, sodium cocoyl glutamate and urea, are sufficiently mixed uniformly.