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CN-122010168-A - Oxide solid solution and preparation method thereof, coating material and coating

CN122010168ACN 122010168 ACN122010168 ACN 122010168ACN-122010168-A

Abstract

The invention provides an oxide solid solution, a preparation method thereof, a coating material and a coating, wherein the structural formula of the oxide solid solution is Ti 1－x Zr x O 2 , wherein x is more than or equal to 0.01 and less than or equal to 0.08, and the oxide solid solution has a rutile crystal structure. The oxide solid solution has both ultraviolet ageing resistance and wear resistance, and can simultaneously improve the ultraviolet ageing resistance and wear resistance of the coating when being added into the organic coating. The solid solution is added into the organic coating as a single component, is easy to be uniformly mixed with the organic coating, and can reduce the mixing difficulty caused by adding multiple components into the organic coating at the same time.

Inventors

  • LUN HUILIN
  • LIU XIAOXU
  • DING HAN
  • ZHANG DONGNA
  • DING NAN
  • LI HOUBU
  • WEI BIN

Assignees

  • 中国石油天然气集团有限公司
  • 中国石油集团工程材料研究院有限公司

Dates

Publication Date
20260512
Application Date
20241112

Claims (10)

  1. 1. The oxide solid solution is characterized in that the structural formula of the oxide solid solution is Ti 1－x Zr x O 2 , wherein x is more than or equal to 0.01 and less than or equal to 0.08, and the oxide solid solution has a rutile crystal structure.
  2. 2. The method for producing an oxide solid solution according to claim 1, comprising the steps of: S1, mixing TiO 2 powder and ZrO 2 powder to obtain mixed powder, wherein the TiO 2 powder has a rutile type crystal structure; S2, heating the mixed powder to 1400-1700 ℃, preserving heat for 60-120 min, and crushing the obtained product to obtain oxide solid solution powder.
  3. 3. The method for producing an oxide solid solution according to claim 2, wherein in S1, the ZrO 2 powder has a monoclinic phase crystal structure.
  4. 4. The method for preparing the oxide solid solution according to claim 2, wherein S1 is specifically prepared by performing wet ball milling on TiO 2 powder and ZrO 2 powder, and then drying to obtain the mixed powder.
  5. 5. The method for preparing an oxide solid solution according to claim 4, wherein the ball milling condition is that the rotation speed is 50-200 rpm, the time is 1-5 hours, the ball milling medium is ethanol and/or water, and the ball-to-material ratio is (6-10): 1.
  6. 6. The method for producing an oxide solid solution according to claim 2, wherein in S2, the temperature rising rate is 10 to 50 ℃.
  7. 7. The coating material is characterized by comprising 80-90% of organic coating and 10-20% of modified oxide solid solution by mass percent, wherein the modified oxide solid solution is obtained by modifying the oxide solid solution in claim 1 by a silane coupling agent.
  8. 8. The coating material according to claim 7, wherein the organic coating is a polyurethane coating, an epoxy coating or an unsaturated polyester coating.
  9. 9. The method for producing a coating material according to claim 7, comprising reacting the oxide solid solution with a silane coupling agent to obtain a modified oxide solid solution, and mixing the modified oxide solid solution with an organic coating material to obtain the coating material.
  10. 10. A coating, characterized in that it is obtained by curing a coating material according to claim 7.

Description

Oxide solid solution and preparation method thereof, coating material and coating Technical Field The invention belongs to the technical field of coatings, and particularly relates to an oxide solid solution, a preparation method thereof, a coating material and a coating. Background Organic coatings, such as polyurethane-based coatings, vinyl-based coatings, epoxy-based coatings, unsaturated polyester-based coatings and the like, can be affected by factors such as light, heat, rainwater, oxygen and the like when used in natural climate environments, so that the mechanical property and the corrosion resistance of the organic coatings are reduced, the service life of the organic coatings is shortened, and particularly, chemical bonds in the resin are broken by ultraviolet light, so that cracks are generated on the surface of the organic coatings. In addition, because of the outdoor open environment, the condition that the coating film is scratched also easily appears in the organic coating, especially in the region that sand storm weather frequently takes place, and the organic coating can receive the efflorescence effect, causes the defect to the organic coating, leads to organic coating life to shorten. Inorganic materials such as zinc oxide, titanium oxide and the like have high ultraviolet shielding effect, and have the advantages of chemical stability, easy processing, no toxicity and the like. In order to obtain a coating material with better ultraviolet aging resistance and wear resistance, part of researchers add inorganic functional fillers to the organic coating, for example, chinese patent application with publication No. CN 116003993A adds sodium persulfate to polyurethane, chinese patent application with publication No. CN 113185662A adds layered double hydroxide to polyurethane, and Chinese patent application with publication No. CN 117070140A adds nano TiO 2 to polyurethane. The organic coating obtained by the scheme of adding the inorganic functional filler into the organic coating can obtain better ultraviolet aging resistance. In addition, in order to obtain an organic coating layer having high abrasion resistance, a researcher adds an abrasion resistant phase to the organic coating layer, for example, chinese patent application publication No. CN 112341798A adds flake TiO 2 and sodalite to the organic coating layer, chinese patent application publication No. CN 110862677a adds modified nano ZrO 2 and diatomaceous earth to the organic coating layer, and chinese patent application publication No. CN 102585684A adds mica or talc and TiO 2 to the organic coating layer. In order to simultaneously improve the ultraviolet aging resistance and the wear resistance of the organic coating, functional fillers with the function of absorbing or reflecting ultraviolet rays and a wear-resistant phase with higher hardness are required to be added simultaneously. However, the simultaneous addition of multiple fillers greatly increases the difficulty of uniform mixing between the organic coating and the fillers, and the non-uniformity of the components results in a decrease in the coating properties, so that the finally obtained coating properties are affected. Disclosure of Invention In order to solve the technical problems in the prior art, the invention provides an oxide solid solution, a preparation method thereof, a coating material and a coating, wherein the oxide solid solution has ultraviolet ageing resistance and wear resistance, and can solve the problem of mixing difficulty caused by adding multiple components into an organic coating at the same time. The invention is realized by the following technical scheme: The invention provides an oxide solid solution, which has a structural formula of Ti 1－xZrxO2, wherein x is more than or equal to 0.01 and less than or equal to 0.08, and the oxide solid solution has a rutile crystal structure. The invention provides a preparation method of the oxide solid solution, which comprises the following steps: S1, mixing TiO 2 powder and ZrO 2 powder to obtain mixed powder, wherein the TiO 2 powder has a rutile type crystal structure; S2, heating the mixed powder to 1400-1700 ℃, preserving heat for 60-120 min, and crushing the obtained product to obtain oxide solid solution powder. Preferably, in S1, the ZrO 2 powder has a monoclinic phase crystal structure. Preferably, the S1 is specifically that TiO 2 powder and ZrO 2 powder are subjected to wet ball milling and then dried to obtain mixed powder. Further, the ball milling condition is that the rotating speed is 50-200 rpm, the time is 1-5 h, the ball milling medium is ethanol and/or water, and the ball-to-material ratio is (6-10): 1. Preferably, in S2, the temperature rising rate is 10-50 ℃ per minute. The invention also provides a coating material which comprises, by mass, 80% -90% of an organic coating and 10% -20% of a modified oxide solid solution, wherein the modified oxide solid solution is obtained by modif