CN1667066A - Antiwear and anticorrosion nano paint for high temperature metal - Google Patents

Abstract

This invention relates to application of nanometer titanium dioxide, silicon dioxide, zinc oxide, alumina oxide materials. It is consisted by filler, addition agent and binding agent, the weight ratio of filler, addition agent and binding agent is 1:2. The filler includes titanium dioxide powder 3~30%, silicon dioxide powder 2~20%, zinc oxide 10~30%, alumina oxide powder 3~28%, talcum powder 5~20%, kaolin powder 2~25%, silicon carbide powder 4~20%, ZrO2 2~10%. Addition agent includes silicon powder 0.1~15%, dibutyl ester 1~20%, silane coupler 0.5~15%, silicon oil 0.2~10%, organic bentonite 1~15%, xylene0.5~15%. Binding agent includes organic silicon resin 1~35%, sodium silicate 2~20%, organic solvent 5~80%. The material is cheap, technique is simple and reliable, cost is low, and product is mature.

Description

Hot metal anti-wear, anti-corrosion nano coating

Technical field

The present invention relates to the application of nano material, relate to the application of nano titanium oxide, silicon-dioxide, zinc oxide, alumina material specifically.

Technical background

Nano-TiO ₂Be that coatings industry substitutes coarse grain TiO ₂Important source material as white pigment and porcelain glaze.Also can be used for resistance to deterioration, wear resistance and intensity etc. that rubber, plastics can improve goods.

Nano silicon oxide also develops, and drops into practical application." monox nanometer the is handled the PET bottle " technology that improves gas barrier has been developed in U.S. COCA COLA company and Essen, Germany university, German Krones company and the four directions cooperation of Leybold system house.This technology is under the high vacuum isoionic state, adopts SiOx to make the physical vacuum vapor deposition and handles, and processing layer is in the outside of PET bottle.It is reported, can improve 4 times of gas barriers, prolong shelf-lives at least 6 months, and do not influence the smell of beer with the PET bottle of this art breading.

Nano zine oxide can be used for rubber industry, can make rubber consumption reduce 3 to 7 one-tenth, and can improve the wear resistance of rubber item, has characteristics such as anti-aging, anti-wear are caught fire, prolong work-ing life; Nano zine oxide still is a kind of good ultraviolet screening agent, can make the coating of latent type aircraft.

Nano aluminium oxide can be used to make children jewel, analytical reagent and nm-class catalyst and carrier, and is used for luminescent material and can improves luminous intensity greatly, to ceramic, rubber toughened, strengthen and exceed several times than common aluminum oxide.Particularly improve ceramic densification, smooth finish, cold and hot fatigue etc.Nano aluminium oxide is mainly used in the main accessory and the ic substrate of YGA laser crystalline substance, and is used in and is used for improving wear resistance in the coating.

But how to utilize these nano materials, obtaining high performance hot metal wear-resisting corrosion-resisting coating is the technical problem that will solve.

Summary of the invention

The hot metal anti-wear, anti-corrosion nano coating that provides of the present invention is made up of filler, additive and binding agent, and the weight proportion of used filler and additive and binding agent is 1: 2; Wherein

(1) filler and additive are equipped with by following weight percent:

Filler: by titanium dioxide powder 3%～30%, wherein 0.1%～8% is the modified nano-titanium dioxide powder; Silicon dioxide powder 2%～20%, wherein 0.1%～5% is the modified manometer silicon dioxide powder; Oxide powder and zinc 10%～30%, wherein 0.1%～10% is the modified nano zinc oxide powder; Aluminum oxide powder 3%～28%, wherein 0.1%～15% is the modified Nano aluminium oxide powder; Talcum powder 5%～20%; Kaolin powder 2%～25%; Carborundum powder 4%～20%; ZrO ₂2～10% form;

Additive: by silica flour 0.1%～15%; Dibutylester 1%～20%; Silane coupling agent 0.5%～15%; Silicone oil 0.2%～10%; Organobentonite 1%～15%; 0.5%～15% composition of dimethylbenzene;

(2) binding agent is by silicone resin 1%～35%; Water glass 2%～20%; 5%～80% composition of organic solvent.

Hot metal anti-wear, anti-corrosion nano coating provided by the invention be suitable for applying or spary on the hot metal surface protective layer as anticorrosion antiwear, be particularly useful for the high-temperature anticorrosion wear Protection of the metallic surface of heat power plant boiler heating surface pipe (water wall tube, economize coal facial canal, overheated facial canal, hot side pipe again) and departments such as chemical industry, iron and steel, petrochemical industry, metallurgy and mechanical industry.

The product performance that the present invention produced detect through relevant department of portion of State Grid, and its performance is than U.S. C-10A, ET-4; Britain's leaf board; Japan CRC1100, CRC1500, the Siliconig type is all superior greatly, more substantially exceeds the Russian products performance.Test result sees Table 1.

Because the present invention has adopted cheap starting material, simple and reliable process, cost is low, and industrial applicibility is strong, and performance is good.Through verification technique advanced person, product maturation repeatedly.

Specific embodiment

Embodiment 1

A. filler and additive

Filler: titanium dioxide powder (325 order) 10%, wherein modified nano-titanium dioxide 3%; Silicon dioxide powder (325 order) 20%, wherein modified manometer silicon dioxide 4%; Oxide powder and zinc (325 order) 15%, wherein the modified nano zinc oxide powder 2.5%; Aluminum oxide powder (325 order) 5%, wherein the modified Nano aluminum oxide powder 0.5%; Talcum powder (325 order) 15%; Kaolin powder (325 order) 15%; Zirconium dioxide 2%; Carborundum powder (400 order) 18%.

Additive: silica flour (400 order) 15%; Dibutylester 20%; Silane coupling agent 15%; Silicone oil 20%; Organobentonite (325 order) 20%; Dimethylbenzene 10%.

B. binding agent:

Silicone resin 25%, sodium silicate (325 order) 20%, dimethylbenzene or ethanol 55%; Above-mentioned filler, additive, binding agent stirred in proportion.

Embodiment 2

A. filler and additive

Filler: titanium dioxide powder (325 order) 15%, wherein modified nano-titanium dioxide 3.5%; Silicon dioxide powder (325 order) 25%, wherein the modified manometer silicon dioxide powder 5%; Oxide powder and zinc (325 order) 10%, wherein the modified nano zinc oxide powder 3.5%; Aluminum oxide powder 10%, wherein the modified Nano aluminum oxide powder 1%; Talcum powder (325 order) 10%; Kaolin powder (325 order) 10%; Carborundum powder (400 order) 16%; Zirconium dioxide 4%.

With above-mentioned each material mix example go into the grinding in ball grinder mixing filler.

B. additive: by silica flour (320 order) 10%; Dibutylester 25%; Silane coupling agent 10%; Silicone oil 25%; Organobentonite (325 order) 15%; Dimethylbenzene 15%.

C. binding agent: silicone resin 20%; Sodium silicate (325 order) 25%, dimethylbenzene or ethanol 55%; Above-mentioned filler, additive, binding agent stirred in proportion.

Table 1:

The place of production	Product grade	Heatproof (℃)	Wearability (500r/750 g)	Anti-corrosion	Adhesive force	Hardness (H R A)	Energy-conservation (%)	Heat conduction	Coefficient of thermal expansion	Service life (year)
												Coating provided by the invention	1200	Abrasion resistance (g)＜0.0002	The acid and alkali-resistance salt corrosion	0.9μpa	＞85	＞8	42	12.5×10 -6	＞1
The U.S.	c-10A ET-4	450	＜0.5	Weak acid resistant	0.78μpa	＞70	-	36	14.8×10 -6	＞0.7
											Britain	The leaf board	420	＜0.56	Weak acid resistant	0.74μpa	＞68	-	35.5	15.2×10 -6	＞0.6
Japan	CRC1100 1500	415	＜0.52	Weak acid resistant	0.72μpa	＞62	-	35.2	15.4×10 -6	＞0.52
											Russia	E-10	400	＜0.50	Weak acid resistant	0.68μpa	＞58	-	34.6	15.8×10 -6	＞0.4

Claims (1)

1, hot metal anti-wear, anti-corrosion nano coating is made up of filler, additive and binding agent, and the weight proportion that it is characterized in that used filler and additive and binding agent is 1: 2; Wherein

(1) filler and additive are equipped with by following weight percent:

Filler: by titanium dioxide powder 3%～30%, wherein 0.1%～8% is the modified nano-titanium dioxide powder; Silicon dioxide powder 2%～20%, wherein 0.1%～5% is the modified manometer silicon dioxide powder; Oxide powder and zinc 10%～30%, wherein 0.1%～10% is the modified nano zinc oxide powder; Aluminum oxide powder 3%～28%, wherein 0.1%～15% is the modified Nano aluminium oxide powder; Talcum powder 5%～20%; Kaolin powder 2%～25%; Carborundum powder 4%～20%; ZrO ₂2～10% form;

Additive: by silica flour 0.1%～15%; Dibutylester 1%～20%; Silane coupling agent 0.5%～15%; Silicone oil 0.2%～10%; Organobentonite 1%～15%; 0.5%～15% composition of dimethylbenzene;

(2) binding agent is by silicone resin 1%～35%; Water glass 2%～20%; 5%～80% composition of organic solvent.