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CN-122011856-A - Ultraviolet light double-effect self-repairing type high polymer fragrance-releasing material and preparation method thereof

CN122011856ACN 122011856 ACN122011856 ACN 122011856ACN-122011856-A

Abstract

The invention discloses an ultraviolet light double-effect self-repairing type high polymer fragrance releasing material and a preparation method thereof, wherein the high polymer fragrance releasing material is prepared by mixing a film forming base material A and an active ingredient B, the film forming base material A comprises, by mass, 45-55 parts of acrylic resin, 4-6 parts of hollow glass beads, 4-6 parts of dextrin, 6-8 parts of film forming auxiliary agent, 10-14 parts of epoxy resin and 8-12 parts of ionized water, and the active ingredient B comprises, by mass, 8-12 parts of cinnamaldehyde, 8-12 parts of methyl aminobenzoate, 2-3 parts of allicin, 2-4 parts of ultraviolet light absorber, 2-4 parts of ultraviolet light isolation agent and 18-22 parts of ionized water. The polymer fragrance-releasing material prepared by the proportion can resist ultraviolet erosion, has the advantages of dynamic self-repairing after the surface has fine cracks, and can keep stability and stronger adhesive force in different environments at high and low temperatures, thereby realizing the long-term stable bird repelling effect.

Inventors

  • HU LONGHUA
  • WU XIAOYING
  • TANG FEI
  • GAO LIANHE
  • Tao Shangqing

Assignees

  • 中国科学技术大学
  • 安徽欣海星源科技有限公司

Dates

Publication Date
20260512
Application Date
20260303

Claims (7)

  1. 1. The ultraviolet light double-effect self-repairing type high polymer fragrance-releasing material is characterized in that the high polymer fragrance-releasing material is prepared by mixing a film-forming base material A and an active ingredient B; 45-55 parts of acrylic resin, 4-6 parts of hollow glass beads, 4-6 parts of dextrin, 6-8 parts of film forming auxiliary agent, 10-14 parts of epoxy resin and 8-12 parts of ionized water; The active ingredient B comprises, by mass, 8-12 parts of cinnamaldehyde, 8-12 parts of methyl aminobenzoate, 2-3 parts of allicin, 2-4 parts of an ultraviolet light absorber, 2-4 parts of an ultraviolet light isolation agent and 18-22 parts of ionized water.
  2. 2. The polymer fragrance releasing material according to claim 1, wherein the film forming base material A further comprises 1-2 parts of an antifoaming agent.
  3. 3. The polymeric fragrance-releasing material of claim 2 wherein the antifoaming agent is a polyether modified polysiloxane.
  4. 4. The polymer fragrance releasing material according to claim 1, wherein the film forming additive is prepared by mixing 4-5 parts by mass of rosin resin and 3-4 parts by mass of sodium alginate.
  5. 5. The high molecular weight fragrance releasing material according to claim 1, wherein the ultraviolet light absorber is 2- (2-hydroxy-5-benzyl) benzotriazole, and the ultraviolet light insulating agent is prepared by mixing nano titanium dioxide and nano zinc oxide according to a mass ratio of 1:1.
  6. 6. A method of preparing a polymeric fragrance releasing material according to any one of claims 1 to 5, comprising the steps of: dividing 45-55 parts of acrylic resin, 4-6 parts of hollow glass beads and 8-12 parts of deionized water into three parts by weight, stirring and mixing, wherein during each stirring, the stirring is performed at a low speed of 300-500 r/min, and the stirring temperature is controlled at 30-50 ℃, so that a mixed solution is formed; Adding 4-6 parts of dextrin and 6-8 parts of film forming auxiliary agent into the mixed solution according to the parts by weight, continuing the stirring process of the first step until the mixture is uniformly dispersed, then adding 10-14 parts of epoxy resin, dropwise adding 1-2 parts of defoaming agent, and stirring at a rotating speed of 500-800 r/min for 10 minutes to ensure that all components are fully and uniformly mixed to obtain a film forming base material A; Adding 8-12 parts of cinnamaldehyde, 8-12 parts of methyl aminobenzoate and 2-3 parts of allicin into 18-22 parts of deionized water according to parts by weight, and performing an emulsification reaction at a water temperature of 50-75 ℃, sequentially adding 2-4 parts of ultraviolet light absorbent and 2-4 parts of ultraviolet light isolation agent after the emulsification is completed, and fully fusing to form an active ingredient B; and step four, mixing the film-forming base material A formed in the step two with the active ingredient B formed in the step three according to the mass ratio of 1:2 at normal temperature, stirring for 5-6 min at the speed of 1200 rpm, and fully stirring and uniformly mixing to form the ultraviolet light double-effect self-repairing type high polymer fragrance releasing material.
  7. 7. Use of the polymer fragrance releasing material prepared in claim 1 as a bird repellent material for repelling birds.

Description

Ultraviolet light double-effect self-repairing type high polymer fragrance-releasing material and preparation method thereof Technical Field The invention relates to a high molecular perfume-releasing material and a preparation method thereof, in particular to an ultraviolet double-effect self-repairing high molecular perfume-releasing material and a preparation method thereof. Background The slow release technology of the perfume and the essence has wide application value in the fields of daily chemicals, textiles, intelligent home furnishings, ecological safety (such as bird expelling, insect preventing) and the like. In order to realize the lasting release of fragrance and improve the stability of active ingredients, a polymer material is used as a carrier to wrap, adsorb or chemically combine the perfume, so that the method has become a mainstream technical scheme in the current industry. With the continuous expansion of application scenes, the market puts higher demands on the functionality of the fragrance releasing materials. For example, in the fields of agriculture and forestry, electric power systems and airport security, fragrance-releasing bird repellent materials are utilized to replace traditional physical defenses (such as scarecrow and bird preventing net) or sensory disturbances (such as strong light and sound waves), and the fragrance-releasing bird repellent materials become a research hot spot which is convenient, environment-friendly and can be applied on a large scale. The technology for realizing active defense by releasing the repellent fragrance greatly solves the bottleneck problems of high cost, easy adaptability, difficult economic and efficient application and the like of the traditional bird repelling means. Due to the advantages of the bird repellent material, in the field of bird repellent, the bird repellent material gradually replaces traditional physical bird repellent and acoustic wave bird repellent, and becomes the main stream of application in the field of current bird repellent technology. The invention patent with publication number of CN120660703A discloses a thiocyanuric acid-based bird repellent, which prolongs the release time of the bird repellent and keeps higher bird repellent rate under the conditions of high temperature and rainwater. Solves the problems of short aging and poor weather resistance of the existing bird repellent. In the invention patent with the publication number of CN121128735A, a stable and compact double slow-release structure of molecular inclusion and physical barrier is constructed by utilizing the electrostatic action between positively charged modified beta-cyclodextrin and negatively charged protein nano particles, and a bird repellent product with high efficiency, long-acting and excellent weather resistance is prepared. The prior art has a certain progress in prolonging the release time of the bird repellent and improving the weather resistance, but the problem of failure caused by outdoor long-term strong ultraviolet radiation and mechanical damage (such as rain striking) still is still insufficient, and specifically, firstly, the bird repellent material is required to be coated on the surface of a box body or a plate body in a coating form in order to ensure the smell release effect and is directly placed in an open air environment (if the bird repellent material is placed in a container such as the box body, the bird repellent effect is greatly reduced), so that the bird repellent material can be exposed to strong ultraviolet rays for a long time, the ageing and the degradation of active ingredients of a coating matrix are extremely easy to be caused, and the existing material is difficult to balance the severe temperature difference between extremely cold and extremely hot and is easy to be broken due to embrittlement or softening and falling. Secondly, after the existing bird repellent material is subjected to mechanical damage caused by wind and rain scouring or impact of other substances, the existing bird repellent material lacks self-repairing capability, and once microcracks appear on the surface layer of the material, internal active components can volatilize rapidly, so that bird repellent effect is reduced rapidly. In summary, the preparation of the long-acting fragrance releasing material which can resist ultraviolet erosion, has a dynamic self-repairing function, can maintain stability and stronger adhesive force in high and low temperature extreme environments, further realizes a long-term stable bird repellent effect, and becomes an urgent need for improving protection durability of production equipment in diversified outdoor public facilities and key industries. Disclosure of Invention Aiming at the problems existing in the prior art, the invention provides the ultraviolet light double-effect self-repairing type high polymer fragrance releasing material and the preparation method thereof, and the material remarkab