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Polyvinyl fluoride resin contained composition

A technology of polyvinyl fluoride resin and composition, which is applied in the direction of coating, etc., and can solve the problems that prepolymers are not easy to obtain, organic silicon materials are not resistant to acid and alkali, and large-scale use of coatings is not convenient, etc.

Inactive Publication Date: 2018-10-02
ZHEJIANG RES INST OF CHEM IND CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The prepolymer is not easy to obtain, it is not convenient to use the coating on a large scale, and the silicone material is not resistant to acid and alkali

Method used

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  • Polyvinyl fluoride resin contained composition
  • Polyvinyl fluoride resin contained composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Put 100 g of polyvinyl fluoride resin with a weight average molecular weight of about 200,000 and 400 g of dimethyl phthalate into a sand mill to disperse until the particle size is less than 40 microns to obtain a composition containing polyvinyl fluoride resin. Then the obtained composition was coated on a clean steel plate, and baked at a temperature of 350°C for 1 minute.

Embodiment 2

[0046] Put 100g of polyvinyl fluoride resin with a weight average molecular weight of about 300,000, 300g of dimethyl phthalate, 50g of γ-butyrolactone and 50g of diethyl phthalate into a sand mill to disperse until the particle size is less than 40 microns. A composition containing a polyvinyl fluoride resin was obtained. Then the obtained composition was coated on a clean steel plate and baked at 360° C. for 50 seconds.

Embodiment 3

[0048] The weight average molecular weight is about 450000 polyvinyl fluoride resin 100g, propylene carbonate 200g, N,N-dimethylacetamide 200g, 1g antioxidant 168, barium sulfate 10g and particle diameter are 1250 order polytetrafluoroethylene micropowder 5g Put it into a high-speed disperser, disperse until the particle size is less than 40 microns, and obtain a composition containing polyvinyl fluoride resin. Then the obtained composition was coated on a clean steel plate and baked at 250° C. for 10 minutes.

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Abstract

The invention discloses a composition prepared from polyvinyl fluoride resin, an organic solvent and at least one of a filler, a pigment, a heat stabilizer and an adhesion promoter; and the size of particles of the composition is 60 microns or below. The composition provided by the invention can be used as a coating, has good weather ability and chemical corrosion resistance and can solve the technical problem of corrosion resistance of the surface of a metal.

Description

technical field [0001] The invention relates to a fluorine-containing paint, in particular to a polyvinyl fluoride paint composition. Background technique [0002] Polyvinyl fluoride has excellent chemical resistance and weather resistance. Its coating is non-toxic and does not contain bisphenol A. It can not only be used as an excellent inner coating for food packaging, but also has good adhesion to metals and non-metals. Concentration, no need for primer, high coating hardness, wear resistance, impact resistance, good corrosion resistance, can protect less durable substrates from damage, more and more used for material protection, such as for automobile oil pipes And the protection of the inner wall of the steel drum. In addition, the polyvinyl fluoride coating film also has excellent chemical stability, and has good corrosion resistance to many chemical and pesticide products such as oils, alcohols, esters, and aromatic compounds. [0003] Chinese patent CN101967349B di...

Claims

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Application Information

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IPC IPC(8): C09D127/14C09D7/61C09D7/63C09D7/65
CPCC08K3/04C08K3/22C08K3/30C08K5/098C08K13/02C08K2003/2272C08K2003/3045C08L2205/02C08L2205/03C09D127/14C08L27/18C08K5/526C08L63/00C08K2003/327
Inventor 钟桂云张艳中马培良
Owner ZHEJIANG RES INST OF CHEM IND CO LTD