Non-stick paint and preparation method thereof

A non-stick coating, pigment technology, applied in the direction of coating, can solve the problems of wear resistance, high hardness, wear resistance, insufficient hardness, low surface energy and so on

Active Publication Date: 2014-05-28
HANGZHOU JIHUA POLYMER MATERIAL CO LTD
View PDF7 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems that existing polytetrafluoroethylene non-stick coatings have some deficiencies in aspects such as wear resistance and hardness, the present i

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

[0055] (1) Preparation of modified PPESK

[0056] a) Preparation of PPESK

[0057] Add 20.696g of DHPZ, 12.184g of DCS, 8.748g of DFK, 15.605g of potassium carbonate, and 42.767g of sulfolane successively in the reaction vessel, use 100mL xylene as the water-carrying agent, stir under the protection of nitrogen, and heat to completely dissolve the reactant. Reflux at 150°C to make it completely dehydrated. After keeping the temperature for 2 hours, slowly raise the temperature to distill out the water-carrying agent toluene, raise the temperature to 180-200°C, react for 4 hours, and stop heating. Quickly pour the polymer solution into hot water while it is hot to obtain a white polymer. The obtained polymer is PPESK with an intrinsic viscosity of 0.53dL / g (25°C, chloroform solution). Dry in a vacuum oven at 120°C After baking for 24 hours, dry PPESK was obtained.

[0058] b) Preparation of hydroxylated PPESK

[0059] Add NaBH to the reaction vessel 4 1.56g, 97.46g of DMA...

Embodiment 2

[0082] (1) Preparation of modified PPESK

[0083] a) Preparation of PPESK

[0084] Add a certain amount of DHPZ20.696g, DCS6.280g, DFK14.652g, potassium carbonate 15.605g, sulfolane 42.767g in sequence in the reaction vessel, use 100mL xylene as the water-carrying agent, stir under the protection of nitrogen, and heat to make the reactant completely Dissolve and reflux at 150°C to make it completely dehydrated. After keeping the temperature for 2 hours, slowly raise the temperature to distill out the water-carrying agent toluene, raise the temperature to 180-200°C, react for 4 hours, and stop heating. Quickly pour the polymer solution into hot water while it is hot to obtain a white polymer. The obtained polymer is PPESK with an intrinsic viscosity of 0.53dL / g (25°C, chloroform solution). Dry in a vacuum oven at 120°C After baking for 24 hours, dry PPESK was obtained.

[0085] b) Preparation of hydroxylated PPESK

[0086] Add NaBH to the reaction vessel 4 1.56g and 97.46g o...

Embodiment 3

[0109] (1) Preparation of modified PPESK

[0110] a) Preparation of PPESK

[0111] Add a certain amount of DHPZ19.564g, DCS3.961g, DFK17.569g, potassium carbonate 16.235g, sulfolane 42.671g in sequence in the reaction vessel, use 100mL xylene as the water-carrying agent, stir under the protection of nitrogen, and heat to make the reactant completely Dissolve and reflux at 150°C to make it completely dehydrated. After keeping the temperature for 2 hours, slowly raise the temperature to distill out the water-carrying agent toluene, raise the temperature to 180-200°C, react for 4 hours, and stop heating. Quickly pour the polymer solution into hot water while it is hot to obtain a white polymer. The obtained polymer is PPESK with an intrinsic viscosity of 0.53dL / g (25°C, chloroform solution). Dry in a vacuum oven at 120°C After baking for 24 hours, dry PPESK was obtained.

[0112] b) Preparation of hydroxylated PPESK

[0113] Add NaBH to the reaction vessel 4 1.64g and 97.35g...

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
Intrinsic viscosityaaaaaaaaaa
Film thicknessaaaaaaaaaa
Login to view more

Abstract

The invention relates to the field of chemical engineering high molecular materials and provides non-stick paint and a preparation method thereof in order to solve the problems of poor abrasive resistance, rigidity and the like of the existing polytetrafluoroethylene non-stick paint. The non-stick paint comprises the following ingredients by weight percentage: 20-65% of blended modified emulsion, 5-35% of pigment, 10-38% of filling, 0.15-25% of thickening agent, 2-28% of amorphous silica, 1.2-16% of surfactant (II), 10-55% of solvent, 0.5-25% of titanium carbonitride, 0.3-13% of defoaming agent, 0.6-12% of pH (potential of hydrogen) regulator and 0.3-25% of film former, wherein the sum of the weight percentages of the ingredients is 100%. The non-stick paint has the characteristics of lower surface energy, better abrasive resistance and high rigidity.

Description

technical field [0001] The invention relates to the field of chemical polymer materials, in particular to a modification method of polyarylether sulfone ketone resin and a wear-resistant and non-stick coating prepared therefrom. Background technique [0002] Polytetrafluoroethylene (PTFE) is a self-lubricating material with an extremely low coefficient of friction, excellent corrosion resistance, and a wide temperature range. It is widely used in aerospace and defense industries. However, its application is greatly limited due to its shortcomings such as large wear, large creep, large linear expansion coefficient, and unstable product size. Pure PTFE has low strength, poor wear resistance and poor creep resistance. It is usually necessary to add some inorganic particles, such as graphite, molybdenum disulfide, aluminum oxide, glass fiber, carbon fiber, etc., to the PTFE polymer to improve its mechanical properties. It can also be used to blend with other polymers such as po...

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): C09D127/18C09D181/06C09D7/12C09D5/00C08G75/23
Inventor 刘海兵钱涛朱海军李希孙金燕刘海清
Owner HANGZHOU JIHUA POLYMER MATERIAL CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap