Search

CN-121975303-A - Environment-friendly wear-resistant plastic and preparation method thereof

CN121975303ACN 121975303 ACN121975303 ACN 121975303ACN-121975303-A

Abstract

The invention belongs to the technical field of plastics, and particularly relates to an environment-friendly wear-resistant plastic and a preparation method thereof. The invention provides an environment-friendly wear-resistant plastic, which comprises a component A and a component B, wherein the component A comprises, by weight, 100 parts of polyether polyol, 15-25 parts of zirconate coupling agent modified titanium carbide, 5-15 parts of organic amine modified MoS 2 -15 parts of dibutyl tin dilaurate, 1-2 parts of antioxidant, 2-6 parts of dispersant, and the component B comprises, by weight, 100 parts of polyether polyol and 70-80 parts of isocyanate. According to the invention, the wear resistance and mechanical properties of the plastic are improved by adding the zirconate coupling agent modified titanium carbide and the organic amine modified MoS 2 .

Inventors

  • CHEN YONGHONG

Assignees

  • 广州华瑞环保新材料科技有限公司

Dates

Publication Date
20260505
Application Date
20260204

Claims (10)

  1. 1. An environment-friendly wear-resistant plastic is characterized by comprising a component A and a component B; The A component comprises, by weight, 100 parts of polyether polyol, 15-25 parts of zirconate coupling agent modified titanium carbide, 5-15 parts of organic amine modified MoS 2 , 1-3 parts of dibutyl tin dilaurate, 1-2 parts of an antioxidant and 2-6 parts of a dispersing agent; The component B comprises, by weight, 100 parts of polyether polyol and 70-80 parts of isocyanate.
  2. 2. The environment-friendly wear-resistant plastic as claimed in claim 1, wherein the polyether polyol in the component A and the polyether polyol in the component B are polyether polyol 635, polyether polyol 450 or polyether polyol 4110, and the isocyanate is at least one of diphenylmethane diisocyanate (MDI), dicyclohexylmethane diisocyanate (HMDI) and Hexamethylene Diisocyanate (HDI).
  3. 3. The environment-friendly wear-resistant plastic as claimed in claim 1, wherein the preparation method of the zirconate coupling agent modified titanium carbide comprises the following steps: Adding the titanium carbide and the zirconate coupling agent into ethanol water, stirring at a certain temperature, cooling to room temperature, centrifuging, washing and drying to obtain the zirconate coupling agent modified titanium carbide.
  4. 4. The environment-friendly wear-resistant plastic is characterized in that the volume ratio of ethanol to water is 2:1, the stirring condition is that the stirring is carried out for 4-6 min at 60-80 ℃, and the drying is carried out for 8-12 h at 80-100 ℃.
  5. 5. The environment-friendly wear-resistant plastic is characterized in that the particle size of titanium carbide is 40-80 nm, the mass ratio of the titanium carbide to the zirconate coupling agent is 100:5-9, and the zirconate coupling agent is neoalkoxy tri (p-aminophenoxy) zirconate.
  6. 6. The environment-friendly wear-resistant plastic as claimed in claim 1, wherein the preparation method of the organic amine modified MoS 2 comprises the following steps: (1) Weighing a molybdenum source and a sulfur source, ultrasonically dispersing the molybdenum source and the sulfur source into deionized water, transferring the deionized water into a hydrothermal reaction kettle, and performing hydrothermal reaction, cooling to room temperature, washing and vacuum drying to obtain MoS 2 ; (2) And (3) ultrasonically dispersing the MoS 2 and the organic amine obtained in the step (1) into deionized water, ultrasonically dispersing, filtering, washing and vacuum drying to obtain the organic amine modified MoS 2 .
  7. 7. The environment-friendly wear-resistant plastic disclosed by claim 6 is characterized in that in the step (1), the sulfur source is thiourea or thioacetamide, the molybdenum source is at least one of ammonium molybdate, sodium molybdate and ammonium molybdate, and the molar ratio of the molybdenum source to the sulfur source is 1:3-5.
  8. 8. The environment-friendly wear-resistant plastic, as claimed in claim 6, wherein in the step (1), the hydrothermal reaction condition is that the reaction is carried out for 14-20 hours at 160-200 ℃, and the drying is that the drying is carried out for 10-14 hours at 80-100 ℃.
  9. 9. The environment-friendly wear-resistant plastic is characterized in that in the step (2), the ratio of MoS 2 to organic amine obtained in the step (1) is 100 g:20-40 mL, the organic amine consists of diethylamine and diethylenetriamine, the volume ratio of diethylamine to diethylenetriamine is 3-5:1, the ultrasonic dispersion time is 10-30 min, and the vacuum drying is performed at 80-100 ℃ for 10-14 h.
  10. 10. The method for preparing the environment-friendly wear-resistant plastic according to any one of claims 1 to 9, which is characterized by comprising the following steps: (1) Introducing nitrogen into the reaction kettle, adding polyether polyol and isocyanate of the component B, heating to 70-80 ℃, and reacting for 1.5-2.5h to obtain polyurethane prepolymer; (2) Adding polyether polyol, zirconate coupling agent modified titanium carbide, organic amine modified MoS2, dibutyl tin dilaurate, an antioxidant and a dispersing agent into a reaction kettle, stirring and uniformly mixing at 30-50 ℃ to obtain a component A, adding the component A and a polyurethane prepolymer into a die, performing heat curing at 100-110 ℃ for 1-2h, performing heat treatment at 115-125 ℃ for 8-10h, and cooling to obtain the environment-friendly wear-resistant plastic.

Description

Environment-friendly wear-resistant plastic and preparation method thereof Technical Field The invention belongs to the technical field of plastics. More particularly, relates to an environment-friendly wear-resistant plastic and a preparation method thereof. Background Early one-component polyurethane adhesives for plastic raceways were often prepared using Toluene Diisocyanate (TDI), and residual TDI had relatively high volatile toxicity, which is detrimental to the health of the constructor and the initial user. The molecular weight of the diphenylmethane diisocyanate (MDI) is large, the vapor pressure is low, the crystallization performance of the MDI-50 with 50 percent of 2,4'⁃ MDI isomer content is greatly reduced compared with that of the 4,4' -MDI due to the asymmetry of the molecular structure and the steric hindrance effect, and the prepared prepolymer has small viscosity and meets the low-odor environment-friendly requirement. CN103788462a discloses a wear-resistant plastic particle, comprising: the weight percentage of the carbon black in the wear-resistant plastic particles is 3% -7%, the weight percentage of the ultra-high molecular weight polyethylene in the wear-resistant plastic particles is 69% -73%, the glass fiber accounts for 12-16% of the wear-resistant plastic particles, and the silicone oil accounts for 4-8% of the wear-resistant plastic particles. Through the mode, the wear-resistant plastic particles are prepared by mixing various additives and the ultra-high molecular weight polyethylene, and have the advantages of further improved strength and wear resistance, high rigidity and good bending resistance and thermal deformation resistance. CN118931038A discloses a wear-resistant plastic material and a preparation method thereof, and relates to the technical field of plastic materials, wherein the wear-resistant plastic material comprises, by mass, 100-120 parts of polypropylene, 5-10 parts of friction-increasing filler, 1-3 parts of polyol ester and 1-3 parts of calcium stearate, the friction-increasing filler comprises silicon dioxide, and the wear-resistant plastic material has the effect of improving the wear resistance of the plastic material. The CN119708677A wear-resistant plastic particles and a preparation method thereof relate to the technical field of plastic particles and comprise, by mass, 70-90 parts of polypropylene, 80-100 parts of polyethylene, 6-8 parts of friction-increasing filler, 1-2 parts of polyol ester, 1-2 parts of calcium stearate, 2-3 parts of polyamide, 1-2 parts of plasticizer, 1-2 parts of high impact-resistant toughening agent, 1-3 parts of hydrophobic polymer, 2-3 parts of antioxidant and 2-4 parts of adhesive. When the plastic particles are manufactured, the mixed substance consisting of the silicon dioxide, the glass fiber, the carbon fiber and the nano particles is used as the friction-increasing filler, and is matched with the high impact-resistant toughening agent, so that the wear resistance of the plastic particles can be effectively improved, and the wear resistance is improved, and meanwhile, the plastic particles have good flame retardance, support property, hydrophobicity and other properties. In the prior art, the wear resistance is increased by adding a plurality of inorganic fillers, but the dispersibility of inorganic particles is poor, and the bonding strength with organic matters is weak, so that the prepared plastic has poor wear resistance and mechanical property. Disclosure of Invention The invention aims to overcome the defects and the shortcomings of the prior art and provides environment-friendly wear-resistant plastic and a preparation method thereof. The invention provides an environment-friendly wear-resistant plastic, which comprises a component A and a component B, wherein the component A comprises, by weight, 100 parts of polyether polyol, 15-25 parts of zirconate coupling agent modified titanium carbide, 5-15 parts of organic amine modified MoS 2 -15 parts of dibutyl tin dilaurate, 1-2 parts of antioxidant, 2-6 parts of dispersant, and the component B comprises, by weight, 100 parts of polyether polyol and 70-80 parts of isocyanate. According to the invention, the wear resistance and mechanical properties of the plastic are improved by adding the zirconate coupling agent modified titanium carbide and the organic amine modified MoS 2. The invention aims to provide an environment-friendly wear-resistant plastic. The invention further aims to provide a preparation method of the environment-friendly wear-resistant plastic. The above object of the present invention is achieved by the following technical scheme: an environment-friendly wear-resistant plastic, which comprises a component A and a component B; The A component comprises, by weight, 100 parts of polyether polyol, 15-25 parts of zirconate coupling agent modified titanium carbide, 5-15 parts of organic amine modified MoS 2 , 1-3 parts of dibutyl tin dilaurate, 1-2 pa