CN101892009A - PRTV (Persisitent Room Temperature Vulcanized Silicone Rubber)-anti-contamination flashover coating - Google Patents

Abstract

The invention discloses PRTV (Persisitent Room Temperature Vulcanized Silicone Rubber)-anti-contamination flashover coating, relating to a coating. The PRTV- anti-contamination flashover coating is prepared from 3%-10% of dihydroxy polymethylvinysiloxane, 12%-20% of dihydroxy polydimethylsiloxane, 0.3%-10% of silicon dioxide nanoparticle, 0.3%-10% of titanium dioxide nanoparticle, 0%-12% of powdery aluminum hydroxide, 0%-3% of powdery antimony oxide, 0%-1% of active calcium carbonate nanoparticle and 50%-65% of diluent. In the invention, by selecting imported materials and introducing an advance production technology, fluorine materials and nanometer materials are organically combined and compounded with a silicon rubber body to make the solidified coating remarkably strengthen the electric decoration resistance, the mechanical strength and the natural aging resisting function besides comprising excellent migration property of hydrophobicity, and the service life of the coating is furthest prolonged.

Description

PRTV-antifouling flush paint

Technical field

The present invention relates to a kind of coating, particularly relate to a kind of PRTV-antifouling flush paint.

Background technology

Flashover can take place along the insulator surface of humidity in (as: mist, dew, drizzling rain etc.) under bad weather condition, causes the power system pollution flashover accident.Pollution flashover is threatening the safe and stable operation of power system, and the lighter influences local power, and weight person can impact electrical network, even makes whole electrical network produce cracking.The generation of pollution flashover has caused tremendous loss to the influence of power supply system to national economy.Particularly the natural contamination phenomenon on power system outdoor equipment electroceramics surface is that inevitably along with the development of Chinese national economy, topsoil is on the rise, and the various places source of pollution are on the increase, and the close value scope of salt increases year by year.Otherwise porcelain insulating configuration is generally on the low side, and circuit increases year by year, and anti-pollution flashover professional is on the low side, considers the factors such as weather, bird pest of superpotential operation and conversion uneasiness again, and the possibility of pollution flashover is increasing.This just has higher requirement to running maintenance.Between in January, 7 in December, 96 to nine in North China, East China, Central China, the geographic big area pollution flashover accident in Shandong, beaten alarm bell for us again.Room temperature vulcanized silicone rubber (Room Temperature Silicone Rubber) is called for short the RTV antifouling flush paint, is rapidly developed at home and widespread use as a kind of new technology, novel material with its outstanding feature such as long-acting, non-maintaining in recent years.But existing RTV antifouling flush paint is unreasonable because of its component, and work-ing life is still shorter relatively.

Summary of the invention

The present invention is intended to overcome the deficiencies in the prior art, and a kind of PRTV-antifouling flush paint is provided.

PRTV-antifouling flush paint of the present invention, by following raw materials according by weight hundred parts than forming:

Major ingredient: dihydroxyl gathers ethylene methacrylic radical siloxane 3%～10%;

Dialkyl polydimethylsiloxane 12%～20%;

Filler: nano silicon 0.3%～10%;

Nano titanium oxide 0.3%～10%;

Powdery aluminium hydroxide 0%～12%;

Powdery antimonous oxide 0%～3%;

Nm-class active calcium carbonate 0%～1%;

Thinner: 50%～65%.

Preferred component of the present invention and fill a prescription as follows:

Major ingredient: dihydroxyl gathers ethylene methacrylic radical siloxane 3%～5%;

Dialkyl polydimethylsiloxane 12%～15%;

Filler: nano silicon 0.3%～8%;

Nano titanium oxide 0.3%～6%;

Powdery aluminium hydroxide 0%～9%;

Powdery antimonous oxide 0%～3%;

Nm-class active calcium carbonate 0%～1%;

Thinner: 55%～65%.

PRTV of the present invention-effect antifouling flush paint is by selecting imported raw material for use and introducing vanguard technology, fluorine material and nano material organically in conjunction with and be compound in the silicon rubber body, coating after the curing is removed possessed good migration of hydrophobicity, the outstanding dielectric that strengthened, physical strength, anti-weather aging function has prolonged work-ing life of coating to greatest extent.

Embodiment

Embodiment 1

PRTV-antifouling flush paint of the present invention, by following raw materials according by weight hundred parts than forming:

Major ingredient: dihydroxyl gathers ethylene methacrylic radical siloxane 3%～10%;

Dialkyl polydimethylsiloxane 12%～20%;

Filler: nano silicon 0.3%～10%;

Nano titanium oxide 0.3%～10%;

Powdery aluminium hydroxide 0%～12%;

Powdery antimonous oxide 0%～3%;

Nm-class active calcium carbonate 0%～1%;

Thinner: 50%～65%.

Embodiment 2

PRTV-antifouling flush paint of the present invention, by following raw materials according by weight hundred parts than forming:

Major ingredient: dihydroxyl gathers ethylene methacrylic radical siloxane 3%～5%;

Dialkyl polydimethylsiloxane 12%～15%;

Filler: nano silicon 0.3%～8%;

Nano titanium oxide 0.3%～6%;

Powdery aluminium hydroxide 0%～9%;

Powdery antimonous oxide 0%～3%;

Nm-class active calcium carbonate 0%～1%;

Thinner: 55%～65%.

With PRTV-antifouling flush paint that component of the present invention is mixed with, has remarkable hydrophobic nature, the hydrophobic nature transport property; Physical strength is higher; Anti creepage trace and electricity decorations property height; Good flame resistance; Superpower ageing resistance; The work-ing life of overlength.Can increase substantially electric power power transmission and transformation equipment outer insulation pollution flashover voltage, pollution flashover voltage can bring up to 200%.Ensure the power equipment operating safety; Please pack by first opening encapsulation when this product is used, can directly be painted on the electroceramics surface then, contact the after fixing film forming with air, ensure the quality of products, cut the waste, it is easy to use to construct; Coating has hydrophobic nature and unique hydrophobic nature migrate attribute, and promptly hydrophobic nature can migrate to the pollution layer surface, does not form continuous moisture film at severe weather (rain, mist, dew, drizzling rain) coatingsurface; Under the normal situation about using of equipment, power external insulation equipment can be in order to avoid the cleaning maintenance.Save the human and material resources (generally tentative more than 20 years) of a large amount of cleaning external insulation equipments; The coating top layer has hydrophobic nature, thereby has effectively prevented cement and chemical industry filth at its surface scale, thereby this product can be widely used in various natural, industrial environments; This product excellent insulation performance, strong adhesion, long, anti-electricity decorations of life-span, ageing-resistant, and have anti-icing effect and good weathering resistance.

The insulator surface wiped clean that will apply during use; Adopt and spray or brush in cleaning electroceramics surface; Coat-thickness is at 0.3～0.5mm; Apply surface drying in back 30 minutes, did solid work in 24 hours; Under fine weather, construct.

Claims (2)

1.PRTV-antifouling flush paint, by following raw materials according by weight hundred parts than forming:

Major ingredient: dihydroxyl gathers ethylene methacrylic radical siloxane 3%～10%;

Dialkyl polydimethylsiloxane 12%～20%;

Filler: nano silicon 0.3%～10%;

Nano titanium oxide 0.3%～10%;

Powdery aluminium hydroxide 0%～12%;

Powdery antimonous oxide 0%～3%;

Nm-class active calcium carbonate 0%～1%;

Thinner: 50%～65%.

2. PRTV-antifouling flush paint as claimed in claim 1, it is characterized in that by following raw materials according by weight hundred parts than forming:

Major ingredient: dihydroxyl gathers ethylene methacrylic radical siloxane 3%～5%;

Dialkyl polydimethylsiloxane 12%～15%;

Filler: nano silicon 0.3%～8%;

Nano titanium oxide 0.3%～6%;

Powdery aluminium hydroxide 0%～9%;

Powdery antimonous oxide 0%～3%;

Nm-class active calcium carbonate 0%～1%;

Thinner: 55%～65%.