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A kind of antibacterial flame-retardant hips composite material and preparation method thereof

A technology of composite materials and antibacterial agents, applied in the field of polymers, can solve problems such as inability to provide, and achieve the effect of improving the flame retardant effect and not reducing the impact performance

Active Publication Date: 2020-09-29
佛山市伟奇达新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Mechanisms such as: protective film mechanism, otherwise gas mechanism, cooling mechanism, and termination chain reaction mechanism are given in existing textbooks. These can provide a vague direction for the selection of flame retardants, but they cannot provide real effective information. s help

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0030] A kind of preparation method according to above-mentioned antibacterial flame-retardant HIPS composite material, it is characterized in that, comprises the following steps:

[0031] (1) Put HIPS, PC, antibacterial agent, compound flame retardant, flame retardant synergist, antioxidant, processing aid into the mixer and stir for 1-3 minutes to obtain mixed raw materials;

[0032] (2) Put the mixed raw material of step 2 and the mixing product of step 1 into a twin-screw extruder for reaction, and the material stays in the barrel for 1-2min to obtain a reaction product. The twin-screw extruder The temperature of each zone is as follows: Zone 1 180-200℃, zone 2 200-220℃, zone 3 200-220℃, zone 4 200-220℃, zone 5 200-220℃, zone 6 200-220℃, zone 7 200- 220°C, eighth zone 200-220°C, nine zone 200-220°C, machine head 200-210°C.

[0033] (3) The finished product is obtained after the reaction product is cut into pellets and dried.

Embodiment 1

[0035] An antibacterial flame retardant HIPS composite material is characterized in that, in parts by mass, it includes the following raw materials: 70 parts of HIPS, 15 parts of PC, 3 parts of antibacterial agent, 7.5 parts of composite flame retardant, 4 parts of flame retardant synergist, antibacterial 2 parts of oxygen agent and 2 parts of processing aid; the composite flame retardant is obtained by compounding dibenzothiophene-4-boronic acid, polyphosphate amine, and silicone in a mass ratio of 3:3:6, and the antibacterial agent It is obtained by compounding orpiment concentrate powder and chitosan at a mass ratio of 1:3.

[0036] The antibacterial agent is obtained by adding orpigo concentrate powder into chitosan glacial acetic acid solution, stirring evenly, volatilizing the solvent, and then drying. The flame retardant synergist is antimony trioxide. Described processing aid is stearamide lubricant. The antioxidant is a polybasic hindered phenol antioxidant. The si...

Embodiment 2

[0042]An antibacterial and flame retardant HIPS composite material is characterized in that, in parts by mass, it comprises the following raw materials: 80 parts of HIPS, 10 parts of PC, 4 parts of antibacterial agent, 5 parts of composite flame retardant, 5 parts of flame retardant synergist, antibacterial 1 part of oxygen agent, 3 parts of processing aids; the composite flame retardant is obtained by compounding dibenzothiophene-4-boronic acid, polyphosphate amine, and silicone in a mass ratio of 2:4:4, and the antibacterial agent It is obtained by compounding orpiment concentrate powder and chitosan at a mass ratio of 1:4.

[0043] The antibacterial agent is obtained by adding orpigo concentrate powder into chitosan glacial acetic acid solution, stirring evenly, volatilizing the solvent, and then drying. The flame retardant synergist is antimony trioxide. The processing aid is silicone oil. The antioxidant is a polybasic hindered phenol antioxidant. The silicone is polys...

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PUM

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Abstract

The invention discloses an antibacterial and flame retardant HIPS composite material and a preparation method thereof. The antibacterial and flame retardant HIPS composite material comprises the following raw materials: HIPS, PC, antibacterial agent, composite flame retardant, flame retardant synergist, antibacterial Oxygen, processing aids. The invention provides an antibacterial and flame-retardant HIPS composite material and a preparation method thereof. By optimizing the components and dosage, the prepared product can have excellent flame retardancy and antibacterial effect without reducing the impact resistance.

Description

technical field [0001] The invention belongs to the technical field of polymers, and in particular relates to an antibacterial and flame-retardant HIPS composite material and a preparation method thereof. Background technique [0002] HIPS (Impact Resistant Polystyrene) has high impact resistance but poor flame retardancy. In our country, the fire situation is also not optimistic, and some major fire accidents occur frequently. Most plastics are flammable substances, and plastic building materials, transportation materials, household appliances materials, etc. require plastic products not to burn, have good flame retardancy, and require plastics to have low smoke in a fire. For this reason, it is very important to choose to add flame retardants in plastic formulations. [0003] Requirements for flame retardants: (1) It must have good flame retardant function, and the flame retardant effect can be obviously achieved with a small amount; (2) The mechanical strength of the pl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L51/04C08L69/00C08L83/04C08L5/08C08K13/02C08K5/55C08K3/32C08K3/30
CPCC08K2003/3009C08K2003/323C08L51/04C08L2201/02C08L2205/035C08L69/00C08L5/08C08L83/04C08K13/02C08K5/55C08K3/32C08K3/30
Inventor 徐菡
Owner 佛山市伟奇达新材料有限公司