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Method for preparing medical fatigue-resistant plastic

A fatigue-resistant and plastic technology, applied in the field of medical materials, can solve the problems of the antibacterial rate of Staphylococcus aureus, the antibacterial rate of Bacillus subtilis and the low sterilization rate and mechanical properties, and achieves a wide range of applications, simple preparation methods, and easily available raw materials. Effect

Inactive Publication Date: 2018-11-16
SUZHOU JONATHAN NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In view of the above technical problems, the present application provides a method for preparing medical fatigue-resistant plastics, which solves the technical problems of the existing medical materials such as the antibacterial rate of E.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Step 1: Weigh 100 parts of ABS, 10 parts of diethylene glycol, 5 parts of epoxy tetrahydro-o-calcium stearate, 3 parts of octyl α-chloroacrylate, and 5 parts of zinc-loaded antibacterial masterbatch according to the ratio of parts by mass , 2 parts of borate ester, 10 parts of calcium stearate, 4 parts of iron fiber, 0.5 part of triphenyl phosphite, 8 parts of antioxidant DNP, 6 parts of tetraethylthiuram disulfide, 5 parts of potassium nitrate, swelling 1 part of perlite, 4 parts of barite, 7 parts of silicon carbide, 0.5 part of UV-P ultraviolet absorber.

[0023] Step 2: Put ABS, calcium stearate, iron fiber, potassium nitrate and barite into the reaction kettle and heat to 55-75°C, stir for 35-45min at a stirring speed of 350-450 rpm;

[0024] The third step: Then add the remaining raw materials, raise the temperature to 105-125 ° C, stir for 45-65 minutes, and the stirring speed is 350-550 rpm;

[0025] The fourth step: put the mixed material into the extruder, th...

Embodiment 2

[0028] Step 1: Weigh 100 parts of ABS, 12 parts of diethylene glycol, 15 parts of epoxy calcium tetrahydro-o-stearate, 7 parts of octyl α-chloroacrylate, and 25 parts of zinc-loaded antibacterial masterbatch according to the ratio of parts by mass , 6 parts of borate ester, 20 parts of calcium stearate, 8 parts of iron fiber, 2.5 parts of triphenyl phosphite, 10 parts of antioxidant DNP, 10 parts of tetraethylthiuram disulfide, 9 parts of potassium nitrate, swelling 3 parts of perlite, 6 parts of barite, 9 parts of silicon carbide, 4.5 parts of UV-531 ultraviolet absorber.

[0029] The second step: Put ABS, calcium stearate, iron fiber, potassium nitrate and barite into the reaction kettle and heat to 55-75°C, stir for 35-45min, and the stirring speed is 350-450 rpm;

[0030] The third step: Then add the remaining raw materials, raise the temperature to 105-125 ° C, stir for 45-65 minutes, and the stirring speed is 350-550 rpm;

[0031]The fourth step: put the mixed material ...

Embodiment 3

[0034] Step 1: Weigh 100 parts of ABS, 11 parts of diethylene glycol, 10 parts of epoxy tetrahydro-o-calcium stearate, 5 parts of octyl α-chloroacrylate, and 15 parts of zinc-loaded antibacterial masterbatch according to the ratio of parts by mass , 4 parts of borate ester, 15 parts of calcium stearate, 6 parts of iron fiber, 1.5 parts of triphenyl phosphite, 9 parts of antioxidant DNP, 8 parts of tetraethylthiuram disulfide, 7 parts of potassium nitrate, swelling 2 parts of perlite, 5 parts of barite, 8 parts of silicon carbide, 2.5 parts of UV-531 ultraviolet absorber.

[0035] The second step: Put ABS, calcium stearate, iron fiber, potassium nitrate and barite into the reaction kettle and heat to 55-75°C, stir for 35-45min, and the stirring speed is 350-450 rpm;

[0036] The third step: Then add the remaining raw materials, raise the temperature to 105-125 ° C, stir for 45-65 minutes, and the stirring speed is 350-550 rpm;

[0037] The fourth step: put the mixed material i...

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Abstract

The invention discloses a method for preparing a medical fatigue-resistant plastic. The medical fatigue-resistant plastic comprises the following raw materials: ABS (Acrylonitrile Butadiene Styrene),diethylene glycol, epoxy tetrahydro-o-calcium stearate, alpha-chlorine-ethyl hexyl acrylate, zinc-carrying antibacterial master batch, borate, calcium stearate, an iron fiber, triphenyl phosphate, anantioxidant DNP (Dinonyl Phthalate), tetraethylthiuram disulfide, potassium nitrate, expanded perlite, barite, silicon carbide and an ultraviolet light absorber. After being used for 250-300 thousandhours, the medical fatigue-resistant plastic is high in fatigue resistance, has an elastic modus of 2-3 GPa, has an escherichia coli antibacterial rate of 99-99.5%, has a staphylococcus aureus antibacterial rate of 98.8-99.2%, has a pseudomonas aeruginosa antibacterial rate of 98-99%, has a salmonella typhimurium antibacterial rate of 93-97%, has a klebsiella pneumonia antibacterial rate of 94-98%, has a bacillus subtilis antibacterial rate of 97-99% and has a sarcina antibacterial rate of 94-96%.

Description

technical field [0001] The invention relates to the technical field of medical materials, in particular to a preparation method of medical fatigue-resistant plastics. Background technique [0002] ABS plastic is a terpolymer of acrylonitrile (A), butadiene (B) and styrene (S). The relative content of the three monomers can be changed arbitrarily to make various resins. ABS has the common properties of three components, A makes it chemically resistant, heat resistant, and has a certain surface hardness, B makes it have high elasticity and toughness, S makes it have the processing and molding characteristics of thermoplastics and improves electrical properties . Therefore, ABS plastic is a kind of "tough, hard and rigid" material with easy-to-obtain raw materials, good comprehensive performance, low price and wide application. ABS plastics are widely used in machinery, electrical, textile, automobile, aircraft, ship and other manufacturing industries and chemical industry. ...

Claims

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Application Information

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IPC IPC(8): C08L55/02C08K13/04C08K7/06C08K5/098C08K5/526C08K5/40C08K3/28C08K7/24C08K3/34
CPCC08K3/28C08K3/34C08K5/098C08K5/40C08K5/526C08K7/06C08K7/24C08K13/04C08L2201/08C08L2203/02C08L55/02
Inventor 吕少波李卓才李苏杨
Owner SUZHOU JONATHAN NEW MATERIALS TECH
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