Antibacterial aging-resistant antistatic plastic master batch and preparation method thereof

An antistatic plastic, plastic masterbatch technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of non-compliance with hygienic standards, easy to age, not resistant to washing and service life, and achieve stable antibacterial and mildew resistance. The effect of pollution, aging resistance and weather resistance enhancement, flame retardant and fire resistance improvement

Inactive Publication Date: 2014-03-19
GUANGXI LISHENG STONE CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the commonly used organic antibacterial agents have the advantages of fast sterilization speed and wide antibacterial range, but there are also problems such as poor heat resistance, easy oozing, toxicity of leachate, and short service life of washing resistance, so their use has great limitations.
Inorganic antibacterial agents are mainly silver antibacterial agents, which are characterized by safety, heat resistance, and durability. They are currently widely used in fibers, plastics, and building materials. The disadvantage is that they are relatively expensive. And antibacterial slow effect, can not kill bacteria as quickly as organic antibacterial agents, and has almost no inhibitory effect on fungi and molds; at the same time, due to the active chemical properties of silver, it is easy to oxidize and become brown silver oxide, thereby reducing Antibacterial efficacy and affect the appearance of the product; in addition, inorganic antibacterial powder has poor compatibility with polymer materials, and is easy to agglomerate in the matrix resin, which will bring great difficulties to the processing of materials such as spinning and film drawing; inorganic antibacterial agents are passed The heavy metal ions exuded have an antibacterial effect, so they do not meet the national hygienic standards for food packaging materials, and cannot be used in food packaging, kitchen utensils, drinking water pipes and other materials
[0004] There are also certain defects in the performance of commonly used aging-resistant materials in China. They are easy to age at high temperatures, have poor weather resistance, and their physical properties deteriorate under long-term strong light irradiation.
Existing antistatic materials usually cannot achieve complete antistatic effects by adding antistatic agents, which greatly reduces the use range of materials

Method used

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  • Antibacterial aging-resistant antistatic plastic master batch and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] First put the base material consisting of 80 parts of low-density polyethylene and 20 parts of linear low-density polyethylene, 0.5 parts of stearic acid, 2 parts of oxidized polyethylene wax, 0.4 parts of coupling agent KR-9S, and 40 parts of conductive acetylene carbon black in the Mix in the mixer for 12 minutes; then 10 parts of copper powder (325 mesh), composite inorganic flame retardant (45 parts of aluminum hydroxide and 20 parts of zinc borate), 10103 parts of antioxidant, 6 parts of antioxidant DLTP, poly 25 parts of oxyethylene diamine biguanide salt and 6 parts of tris(1,2,2,6,6-pentamethylpiperidinium) phosphite were sequentially added and stirred for 8 minutes; then kneaded in a high-speed kneader for 6 minutes, The temperature of the material is 120°C, the speed of the kneader is 500-800r / min, and it is completely crushed; then it is extruded and granulated through a co-rotating and parallel twin-screw extruder, the diameter of the screw is (50-65) mm, and...

Embodiment 2

[0034]First put the base material consisting of 80 parts of low-density polyethylene and 20 parts of linear low-density polyethylene, 0.6 parts of stearic acid, 2 parts of oxidized polyethylene wax, 0.4 parts of coupling agent KR-9S, and 45 parts of conductive acetylene carbon black in the Mix in the agitator for 10 minutes; then compound inorganic flame retardant (50 parts of aluminum hydroxide and 20 parts of zinc borate), 10103 parts of antioxidant, 7 parts of antioxidant DLTP, 31 parts of polyoxyethylene diamine biguanide salt, Add 7 parts of tris(1,2,2,6,6-pentamethylpiperidinyl) phosphite in sequence and stir and mix for 8 minutes; then knead in a high-speed kneader for 8 minutes, the material temperature is 130°C, and the kneader speed is 500~800r / min, and completely pulverized; then extruded and granulated by co-rotating, parallel twin-screw extruder, the screw diameter is (50~65)mm, the aspect ratio (20~26): 1, and the screw speed is 60~80r / min. Processing conditions...

Embodiment 3

[0036] Firstly, base material consisting of 75 parts of low-density polyethylene and 25 parts of linear low-density polyethylene, 0.6 parts of stearic acid, 2 parts of oxidized polyethylene wax, 0.5 parts of coupling agent KR-9S, and 45 parts of conductive acetylene carbon black Mix in the mixer for 14 minutes; then 10 parts of copper powder (325 mesh), composite inorganic flame retardant (50 parts of aluminum hydroxide and 25 parts of zinc borate), 10104 parts of antioxidant, 7 parts of antioxidant DLTP, poly 40 parts of oxyethylene diamine biguanide salt and 7 parts of tris(1,2,2,6,6-pentamethylpiperidinium) phosphite were added in turn and stirred and mixed for 6 minutes; then kneaded in a high-speed kneader for 8 minutes, The temperature of the material is 110°C, the speed of the kneader is 500-800r / min, and it is completely pulverized; then it is extruded and granulated through a co-rotating and parallel twin-screw extruder with a screw diameter of (50-65) mm and an aspect...

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Abstract

The invention belongs to the technical field of high polymer modification and the technical field of processing, and relates to an antibacterial aging-resistant antistatic plastic master batch and a preparation method thereof. A material disclosed by the invention comprises the following components in parts by weight: 100 parts of polyethylene, 25-40 parts of an antibacterial agent, 1-3 parts of a dispersant, 0-1 parts of a lubricating agent, 8-14 parts of an antioxidant, 5-10 parts of a light stabilizer, 40-60 parts of an antistatic agent, 0.3-0.6 part of a coupling agent, 0-20 parts of metal particles and 50-80 parts of a compound inorganic flame retardant. Compared with the prior art, the antibacterial aging-resistant antistatic plastic master batch has the advantages of high antibacterial performance, high durability, aging resistance and high antistatic property. The adding amount of the master batch in a plastic product is generally about 8 parts, so that the plastic product has efficient broad-spectrum antibacterial property, improved antistatic property, high aging resistance and high flame retardancy. The master batch disclosed by the invention is widely applied to plastic products in a household appliance industry, a telecommunications industry, chemical building materials, and the like.

Description

technical field [0001] The invention belongs to the technical field of polymer modification and processing, and in particular relates to an antibacterial, aging-resistant and antistatic plastic masterbatch and a preparation method thereof. Background technique [0002] Antibacterial antiaging antistatic plastic masterbatch is a new type of material with antibacterial, antistatic, antiaging and flame retardant functions, which is obtained by adding one or several specific additives. A variety of synthetic masterbatches and their products are widely used in daily life and used in large quantities. Therefore, as soon as the antibacterial masterbatch comes out, it will develop rapidly. According to a CBS survey in 1997, European and American countries have gradually paid attention to the antibacterial and anti-aging properties of daily-use products. When buying daily necessities, 52% of the American people will pay attention to whether the products have anti-bacterial, anti-mild...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08L23/08C08K13/02C08K3/08C08K3/22C08K3/38C08K3/04C09K3/16
Inventor 郭学林
Owner GUANGXI LISHENG STONE CO LTD
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