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A technology of antibacterial plastics and polypropylene, applied in the field of plastics, can solve problems such as easy contamination, health hazards, and breeding of various microorganisms, and achieve high strength and good antibacterial properties
Active Publication Date: 2014-04-16
浙江派菲特新材料科技有限公司
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Problems solved by technology
[0002] More and more plastics have entered people's lives, but general plastics are easy to contaminate and breed a
Method used
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Embodiment 1
[0012] Weighing: 8 kg of chitosan, 15 kg of nano titanium dioxide, 15 kg of nano zeolite, and 8 kg of polyhexamethylene guanidine propionate. Stir and mix evenly, and the composite antibacterial agent is prepared.
[0013] An antioxidant is prepared by mixing 2 kg of 2,6-di-tert-butyl-4-methylphenol and 1 kg of trinonylphenyl phosphite.
Embodiment 2
[0015] Weigh the following raw materials according to the following weights:
[0016] 1 kilogram of antibacterial agent prepared in embodiment 1,
[0017] 0.6 kilograms of antioxidant prepared in embodiment 1,
[0018] Polypropylene 100 kg,
[0019] High-density polyethylene 15 kg,
[0020] Low-density polyethylene 15 kg,
[0021] 0.6 kg of polypropylene grafted maleic anhydride,
[0022] 0.5 kg of stearic acid,
[0023] Fiberglass 10 kg.
[0024] The above weighed raw materials were stirred in a high-speed mixer at 1200 rpm for 5 minutes, and released after being uniform. Put the uniformly mixed material into a twin-screw extruder with a length-to-diameter ratio (L / D) of 40. The processing temperature of the twin-screw extruder: the temperature in the first zone is 175°C, the temperature in the second zone is 185°C, and the temperature in the third zone is 200°C, the temperature in the fourth zone is 210°C, the temperature in the fifth zone is 215°C, the temperature in...
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Abstract
The invention discloses a high-strength polypropylene anti-bacterial plastic which comprises the following raw materials in parts by weight: 100 parts of polypropylene, 10-15 parts of high density polyethylene, 10-15 parts of low density polyethylene, 0.6-1 part of an antibacterial agent, 0.2-1 part of an anti-oxidant, 0.5-0.8 part of a compatilizer, 0.4-0.8 part of a dispersing agent and 10-15 parts of glass fibers, wherein the antibacterial agent comprises the following components in parts by weight: 3-10 parts of chitosan, 15-25 parts of nano titanium dioxide, 15-20 parts of nano zeolite and 5-10 parts of poly hexamethylene guanidine propionate. The anti-bacterial plastic has excellent bacteria resistance, and also has relatively high strength.
Description
technical field [0001] The invention relates to the field of plastics, in particular to a high-strength polypropylene antibacterial plastic. Background technique [0002] More and more plastics have entered people's lives, but general plastics are easy to contaminate and breed a variety of microorganisms, including pathogenic bacteria, during the use process, which is harmful to human health. As people pay more and more attention to the healthy environment, the safety and sanitation of plastic products has become a topic of concern, and antibacterial plastics have emerged as the times require. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a high-strength polypropylene antibacterial plastic. The polylactic acid antibacterial plastic not only has good antibacterial performance, but also has relatively high strength. [0004] The technical solution adopted by the present invention to solve the above technical pro...
Claims
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