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CN-121975230-A - High-strength plastic tray and preparation method thereof

CN121975230ACN 121975230 ACN121975230 ACN 121975230ACN-121975230-A

Abstract

The invention relates to the technical field of plastic trays and provides a high-strength plastic tray and a preparation method thereof, wherein the plastic tray comprises, by weight, 100 parts of polypropylene, 15-20 parts of butadiene rubber, 1-3 parts of polytetrafluoroethylene, 1-3 parts of a compatilizer, 10-20 parts of a filler, 10-15 parts of glass fibers, 5-10 parts of a plasticizer, 1-2 parts of an antioxidant and 2-5 parts of a flame retardant, the filler comprises, by weight, 100 parts of titanium dioxide and 7-10 parts of a modifier, and the modifier comprises a silane coupling agent and p-aminophenyl ethanol. Through the technical scheme, the problem of insufficient strength of the plastic tray in the related technology is solved.

Inventors

  • LIU GUOWEN
  • YANG WEIXING
  • Zuo Ruiqing
  • LIU GUOLI
  • ZHANG YICHEN

Assignees

  • 保定中科橡塑制品有限公司

Dates

Publication Date
20260505
Application Date
20260213

Claims (10)

  1. 1. The high-strength plastic tray is characterized by comprising, by weight, 100 parts of polypropylene, 15-20 parts of butadiene rubber, 1-3 parts of polytetrafluoroethylene, 1-3 parts of a compatilizer, 10-20 parts of a filler, 10-15 parts of glass fibers, 5-10 parts of a plasticizer, 1-2 parts of an antioxidant and 2-5 parts of a flame retardant; the raw materials of the filler comprise, by weight, 100 parts of titanium dioxide and 7-10 parts of a modifier; The modifier consists of a silane coupling agent and p-aminophenyl ethanol.
  2. 2. The high-strength plastic tray according to claim 1, wherein the mass ratio of the silane coupling agent to the p-aminophenyl ethanol is 7:1-3.
  3. 3. The high-strength plastic tray according to claim 1, wherein the preparation method of the filler comprises the steps of uniformly dispersing a silane coupling agent and p-aminophenol alcohol in a solvent, adding titanium dioxide, mixing, filtering and drying to obtain the filler.
  4. 4. A high strength plastic pallet according to claim 3, wherein the temperature of the mixing is 40-60 ℃ and the time of the mixing is 1-3 hours.
  5. 5. The high strength plastic pallet of claim 1, wherein the butadiene rubber is comprised of a first butadiene rubber and a second butadiene rubber, the first and second butadiene rubbers having different mooney viscosities.
  6. 6. A high strength plastic pallet according to claim 5, wherein the first butadiene rubber has a mooney viscosity of 43 at ML (1+4), 100 ℃, and the second butadiene rubber has a mooney viscosity of 48 at ML (1+4), 100 ℃.
  7. 7. The high-strength plastic tray according to claim 5, wherein the mass ratio of the first butadiene rubber to the second butadiene rubber is 4:5-7.
  8. 8. The high strength plastic pallet according to claim 1, wherein the antioxidant comprises one or more of antioxidant 1010, antioxidant 168, antioxidant 1076.
  9. 9. The high strength plastic pallet of claim 1, wherein the plasticizer comprises one or more of epoxidized soybean oil, dioctyl phthalate, dioctyl adipate.
  10. 10. A preparation method of a high-strength plastic tray is used for preparing the high-strength plastic tray according to any one of claims 1-9, and is characterized by comprising the following steps of weighing raw materials of the tray according to weight parts, melting, blending, granulating, injecting into a tray mould, demoulding, cooling, trimming and shaping the formed tray to obtain the high-strength plastic tray.

Description

High-strength plastic tray and preparation method thereof Technical Field The invention relates to the technical field of plastic trays, in particular to a high-strength plastic tray and a preparation method thereof. Background The plastic pallet is used as an indispensable bearing and turnover device in the field of storage logistics, is widely applied to full-flow operations such as stacking, loading, unloading, transporting and the like of cargoes, and is an important foundation for realizing standardized and efficient operation of a modern logistics system. With the rapid development of the logistics industry, the load of cargo transportation is continuously improved, the height and the duration of storage stacking are gradually increased, and the market has set forth higher requirements on the strength of the plastic trays. In the prior art, in order to improve the strength performance of the plastic tray, a modification mode of adding inorganic fillers such as titanium dioxide into a plastic matrix is generally adopted in the industry, the mechanical performance of a product is improved through the composite action of the fillers and the matrix, but the titanium dioxide has higher surface energy, agglomeration phenomenon easily occurs in the plastic matrix, uniform dispersion is difficult to realize, the reinforcing and modifying effects of the fillers cannot be fully exerted, and the overall structural stability of the plastic tray is possibly influenced by local agglomeration, so that the research and development of the high-strength plastic tray has important significance. Disclosure of Invention The invention provides a high-strength plastic tray and a preparation method thereof, which solve the problem of insufficient strength of the plastic tray in the related art. The technical scheme of the invention is as follows: The invention provides a high-strength plastic tray, which comprises the following raw materials, by weight, 100 parts of polypropylene, 15-20 parts of butadiene rubber, 1-3 parts of polytetrafluoroethylene, 1-3 parts of a compatilizer, 10-20 parts of a filler, 10-15 parts of glass fiber, 5-10 parts of a plasticizer, 1-2 parts of an antioxidant and 2-5 parts of a flame retardant; the raw materials of the filler comprise, by weight, 100 parts of titanium dioxide and 7-10 parts of a modifier; The modifier consists of a silane coupling agent and p-aminophenyl ethanol. As a further technical scheme, the mass of the modifier is 8% of the mass of the titanium dioxide. As a further technical scheme, the mass ratio of the silane coupling agent to the p-aminophenyl ethanol is 7:1-3. The preparation method of the filler comprises the following steps of uniformly dispersing a silane coupling agent and p-aminophenyl ethanol in a solvent, adding titanium dioxide, mixing, filtering and drying to obtain the filler. As a further technical scheme, the solvent consists of anhydrous ethanol and water in a mass ratio of 7:3-5. As a further technical scheme, the mixing temperature is 40-60 ℃, and the mixing time is 1-3 h. As a further technical scheme, the butadiene rubber is composed of a first butadiene rubber and a second butadiene rubber, and the Mooney viscosities of the first butadiene rubber and the second butadiene rubber are different. As a further technical scheme, the mooney viscosity of the first butadiene rubber at ML (1+4) and 100 ℃ is 43, and the mooney viscosity of the second butadiene rubber at ML (1+4) and 100 ℃ is 48. According to the invention, the impact strength of the plastic tray is improved by adding the first butadiene rubber with the Mooney viscosity of 43 under the conditions of ML (1+4) and 100 ℃ and the second butadiene rubber with the Mooney viscosity of 48 under the conditions of ML (1+4) and 100 ℃, wherein the first butadiene rubber has the advantages of lower Mooney viscosity, higher molecular chain flexibility, better fluidity, capability of effectively absorbing and dispersing external impact energy received by the tray in the use process, higher molecular chain acting force and better rigidity of the second butadiene rubber, capability of providing higher structural stability and deformation resistance for the tray, capability of effectively resisting deformation generated by the tray in the impact process, capability of improving the brittleness of the second butadiene rubber easily generated due to higher viscosity after the two are compounded, capability of improving the impact energy absorption capability of a system, capability of the rigid segment skeleton of the second butadiene rubber can compensate for the defects of insufficient rigidity of the first butadiene rubber and easy occurrence of insufficient impact resistance due to external impact, and capability of the synergetic plastic tray. As a further technical scheme, the mass ratio of the first butadiene rubber to the second butadiene rubber is 4:5-7. As a further technical scheme, the compatilizer is ma