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

A kind of colored aluminum pigment that can be directly used for injection molding and preparation method thereof

An aluminum pigment and color technology, applied in the field of color aluminum pigment composite particles and their preparation, can solve the problems of complex process, poor metallic luster, floating color, etc., and achieve the effects of simple process, strong metallic feeling and cost saving.

Active Publication Date: 2021-05-25
深圳市绚图新材科技有限公司 +1
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the technical problems of traditional spray-free aluminum pigments, such as complex process procedures, poor metallic luster, and floating colors, the present invention proposes a highly dispersed color aluminum pigment that can be directly used for injection molding and its preparation method

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 colored aluminum pigment that can be directly used for injection molding and preparation method thereof
  • A kind of colored aluminum pigment that can be directly used for injection molding and preparation method thereof
  • A kind of colored aluminum pigment that can be directly used for injection molding and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0029] The present invention also proposes a kind of preparation method of described colored aluminum pigment, and its steps are as follows:

[0030] Step 1: weighing the weight of each raw material according to the raw material ratio of the colored aluminum pigment;

[0031] Step 2: Coating a layer of the amino-terminated polyether resin on the surface of the aluminum pigment coated with silica;

[0032] Step 3: adding the organic pigment into the silica-coated aluminum pigment coated with amino-terminated polyether resin, and mixing evenly to obtain a mixture;

[0033] Step 4: coating the mixture with a layer of negatively charged acrylic resin;

[0034] Step 5: Carrying out low-temperature pulverization of the mixture coated with the negatively charged acrylic resin to obtain the colored aluminum pigment.

[0035] Among them, the steps for preparing the coated aluminum pigment of silica are as follows: disperse the aluminum silver paste in propylene glycol methyl ether, a...

Embodiment 1

[0039] Take 105g aluminum equivalent aluminum silver paste, disperse it in 480g propylene glycol methyl ether, add 24g ethyl orthosilicate, 16ml, 28% ammonia water, heat up to 85°C, stir and react for 6h, cool to room temperature after the reaction, add 16mlN -(2-Aminoethyl)-3aminopropyltrimethoxysilane (KH-792), 16ml of deionized water, stirred at room temperature for 2h, after the reaction was completed, suction filtered, washed with propylene glycol methyl ether, and obtained by aluminum 87 %-92%, silica 8%-13% silica-coated aluminum pigment 120g.

[0040] Then mix 30g of amino-terminated polyoxypropylene ether resin with 120g of silica-coated aluminum pigment, stir for 30 minutes, add 17g of No. 180 pigment yellow (Clariant PV FAST HG) and 3g of No. 254 red pigment (BASF LW 3840) Stir for another 2 hours, then add 30 g of negatively charged acrylic resin and stir for 1 hour, extrude the obtained green aluminum pigment into strips, and then pulverize at low temperature to o...

Embodiment 2

[0042] Take 70g aluminum equivalent aluminum silver paste, disperse in 480g propylene glycol methyl ether, add 24g tetraethyl orthosilicate, 16ml, 28% ammonia water, heat up to 85°C, stir and react for 6h, cool to room temperature after the reaction, add 16mlN -(2-Aminoethyl)-3aminopropyltrimethoxysilane (KH-792), 16ml of deionized water, stirred at room temperature for 2h, after the reaction was completed, suction filtered, washed with propylene glycol methyl ether, and obtained by aluminum 87 %-92%, 80g of silica-coated aluminum pigments composed of 8%-13% of silica.

[0043]Then mix 40g of amino-terminated polyoxypropylene ether resin with 80g of silica-coated aluminum pigment, stir for 30 minutes, add 20g of No. 180 pigment yellow (Clariant PV FAST HG) and No. 7 pigment green (BASF Green K 8730) 20g was stirred for another 2 hours, and then 40g of negatively charged acrylic resin was added and stirred for 1 hour, the obtained green aluminum pigment was extruded into strips...

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

No PUM Login to View More

Abstract

The invention discloses a colored aluminum pigment which can be directly used for injection molding and a preparation method thereof. The colored aluminum pigment described therein is prepared from the following raw materials in weight percentage: 40%-70% of aluminum pigment coated with silica, 10-20% of amino-terminated polyether resin, 10-20% of organic pigment, Negatively charged acrylic resin 10%‑20%. The colored aluminum pigment composite particles of the present invention can be used for direct injection molding, the process is simple, and the cost can be saved; the screw is only passed once, and the damage to the metal is minimized, and the metal feeling is strong; the dual-compatible dispersion system is adopted to combine the aluminum pigment and the organic pigment Dispersion to the same degree, no color floating in injection molded products.

Description

technical field [0001] The invention relates to the technical field of pigment surface treatment, in particular to a colored aluminum pigment composite particle which can be directly used for injection molding and a preparation method thereof. Background technique [0002] The spray-free process achieves the effect similar to painting on the surface of the workpiece while realizing the molding of the plastic workpiece through direct injection molding. The production efficiency can be greatly improved, environmental pollution can be avoided, and production costs can be reduced through spray-free technology. With the strengthening of national and public awareness of environmental protection, spray-free technology has been increasingly valued by the industry. From raw materials, plastic formula, mold design, to injection molding process, the upstream and downstream of the industrial chain actively develop spray-free technology and processes, which greatly promotes the applicat...

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): C09C1/64C09C3/06C09C3/10C09C3/08C09C3/04C09C3/12
Inventor 林海晖王治皓曹彩丹
Owner 深圳市绚图新材科技有限公司