Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Surface modification method for inorganic powder used for thermoplastic

A thermoplastic and inorganic powder technology, applied in inorganic pigment treatment, chemical instruments and methods, fibrous fillers, etc., can solve the problems of weak chemical action, easy agglomeration, rough process methods, etc. good oily effect

Inactive Publication Date: 2015-12-23
SUZHOU RUNJIA ENGINEER PLASTIC
View PDF3 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is rough, and because the chemical interaction between the added surfactant (coupling agent) and the inorganic powder is not strong, it cannot improve the lipophilicity of the inorganic powder, which will eventually lead to the failure of the inorganic powder Complete the full combination between the material and the resin interface, it is still easy to agglomerate, and cannot form a strong combination with the organic resin, so it is necessary to further develop a more advanced process technology plan for the surface treatment of inorganic powder

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A method for surface modification of inorganic powder for thermoplastics, comprising the following steps:

[0025] (1) At room temperature, add nano-scale silicon dioxide into the surfactant solution, the concentration of the surfactant solution is 0.05mol / L, and ultrasonically disperse for 20 minutes;

[0026] (2) Centrifuge the mixed solution after ultrasonic dispersion in step (1) to collect semi-finished inorganic powder;

[0027] (3) Mix the inorganic powder semi-finished product obtained in step (2) with deionized water. The amount of deionized water is: deionized water (L) / inorganic powder semi-finished product (g) is equal to 80L / g, and adjust the pH to 4. Stir for 3-5 minutes;

[0028] (4) Add a silane coupling agent to the inorganic powder mixture obtained in step (3). The quality of the silane coupling agent is 1.1 times the mass of the inorganic powder semi-finished product. Stir at room temperature for 1.5 hours, then heat up to 80 °C, stir the reaction w...

Embodiment 2

[0032] A method for surface modification of inorganic powder for thermoplastics, comprising the following steps:

[0033] (1) At room temperature, add nano-sized magnesium hydroxide into the surfactant solution, the concentration of the surfactant solution is 0.10mol / L, and ultrasonically disperse for 25 minutes;

[0034] (2) Centrifuge the mixed solution after ultrasonic dispersion in step (1) to collect semi-finished inorganic powder;

[0035] (3) Mix the inorganic powder semi-finished product obtained in step (2) with deionized water. The amount of deionized water is: deionized water (L) / inorganic powder semi-finished product (g) is equal to 100L / g, and adjust the pH to 4. Stir for 3-5 minutes;

[0036] (4) Add a silane coupling agent containing isopropenoxy to the inorganic powder mixture obtained in step (3), the quality of the silane coupling agent is 1.8 times the mass of the inorganic powder semi-finished product, first stir at room temperature for 2 hours , then the...

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 surface modification method for inorganic powder used for thermoplastic. The method comprises the following steps: pretreating the inorganic powder with surfactant at first; and after adjustment of a pH value, modifying the inorganic powder with a silane coupling agent. The inorganic powder is added into the thermoplastic as an additive, can better bond with organic resin and improves the comprehensive performance of the thermoplastic.

Description

technical field [0001] The invention relates to a method for surface modification of inorganic powder, in particular to a method for surface modification of inorganic powder for thermoplastics. Background technique [0002] Inorganic powders are widely used in modified thermoplastics. Polypropylene materials filled with inorganic powders have many advantages such as dimensional stability, improved rigidity, heat resistance, and cost-effective materials. They are widely used in various automotive plastics. In parts, the interface bonding between inorganic powder and resin material has always been a basic problem of how to further develop the characteristics of inorganic powder in resin material. [0003] The surface functional modification of inorganic powder is an important technical means to solve this problem. At present, the domestic technology mainly focuses on adding some low molecular weight surfactants or interfacial coupling agents to co-operate with the powder. Mix...

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
IPC IPC(8): C09C3/12C09C3/00C09C1/28C09C1/02C09C1/40C09C1/24C08K9/06C08K3/36C08K3/22C08K3/26C08L23/12
Inventor 翁永华汪理文丁贤麟
Owner SUZHOU RUNJIA ENGINEER PLASTIC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com