Permanent antistatic and low-temperature-resistant polystyrene material as well as production method and application thereof

A polystyrene, antistatic technology, applied in the field of modified plastics, can solve the problems of easy peeling off of the coating, unsatisfactory, loss of antistatic effect, etc., to improve antistatic performance, improve rheological properties, and optimize appearance effect Effect

Inactive Publication Date: 2018-04-24
TIANJIN KINGFA NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The antistatic modification of materials can be divided into external coating method and additive method. Among them, the external coating method needs to select a suitable solvent to dissolve the antistatic agent, and there are defects such as easy peeling off of the coating, cracking and deformation of the material; additive method and It is divided into adding migratory short-acting antistatic agent and adding permanent macromolecular antistatic agent. Migratory antistatic agent will lose antistatic effect after being wiped, with low performance stability and depends on ambient humidity to function. Permanent antistatic agent The poor compatibility between the solvent and polystyrene will lead to a significant decline in the low temperature performance of the material
Toughened polystyrene materials on the market often do not have antistatic functions, and polystyrene materials with permanent antistatic functions have poor low-temperature toughness, which cannot meet the antistatic and low-temperature toughness requirements of packaging materials for gas stations and gas mines. Etc performance
[0003] Chinese patent CN101157781A discloses an antistatic polystyrene composition and its preparation method and sheet. Although it has long-term antistatic performance, its toughness at low temperature is average.
Chinese patent 101486824A discloses a method for preparing low-temperature-resistant, environment-friendly, flame-retardant, high-impact polystyrene composition without antistatic function

Method used

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  • Permanent antistatic and low-temperature-resistant polystyrene material as well as production method and application thereof
  • Permanent antistatic and low-temperature-resistant polystyrene material as well as production method and application thereof
  • Permanent antistatic and low-temperature-resistant polystyrene material as well as production method and application thereof

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preparation example Construction

[0027] The preparation method of the permanent antistatic and low-temperature resistant polystyrene material includes the following steps: the above-mentioned raw materials are uniformly mixed, and then fed from the main feed port of the extruder, and the raw materials are melted and extruded in the extruder. , After granulation, a permanent antistatic and low temperature resistant polystyrene material is obtained.

[0028] The extruder is a twin-screw extruder, and the melting temperature in the melting step is 190-220°C. The processing conditions of the melting step are as follows: the temperature in the first zone is 80-100°C, the temperature in the second zone is 170-190°C, the temperature in the third zone is 190-210, the temperature in the fourth zone is 200-220°C, and the temperature in the fifth zone is 200-220°C. The zone temperature is 200-220℃, the seven zone temperature is 190-210℃, the eight zone temperature is 190-210℃, the nine zone temperature is 200-210℃, and the...

Embodiment 1-4

[0031] In the permanent antistatic and low temperature resistant polystyrene material: the impact-resistant polystyrene is HIPS, the permanent antistatic agent is PELESTAT 6500 from Sanyo Kasei, and the permanent antistatic agent is Block copolymers containing polyamide segments or polyethers; the toughening agent is styrene-butadiene-styrene block copolymer (SBS); the compatibilizer is the Dutch polyscope SZ23110; The antioxidant is antioxidant 1010; the lubricant is ethylene bis-stearamide (EBS). See Table 1 for the recipe.

[0032] The preparation method of the permanent antistatic and low-temperature resistant polystyrene material includes the following steps: the above-mentioned raw materials are uniformly mixed, and then fed from the main feed port of the extruder, and the raw materials are melted and extruded in the extruder. , After granulation, a permanent antistatic and low temperature resistant polystyrene material is obtained.

[0033] The extruder is a twin-screw ext...

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Abstract

The invention provides a permanent antistatic and low-temperature-resistant polystyrene material as well as a production method and application thereof. The permanent antistatic and low-temperature-resistant polystyrene material is prepared from the following raw materials in parts by weight: 50 to 75 parts of anti-impact polystyrene, 7 to 20 parts of permanent antistatic agent, 5 to 30 parts of toughening agent, 2 to 10 parts of compatilizer, and 0.2 to 1.0 part of processing aid. By adopting the permanent antistatic and low-temperature-resistant polystyrene material, by virtue of the combination of the low-temperature toughening effect of the toughening agent and the compatilizer for improving the interface strength, excellent low-temperature toughness of the material can be realized.

Description

Technical field [0001] The invention belongs to the field of modified plastics, and in particular relates to a permanent antistatic and low temperature resistant polystyrene material and its preparation method and application. Background technique [0002] Impact-resistant polystyrene material is a material widely used in the fields of TV rear shells, printer parts and packaging shells. It has the advantages of wide processing window, easy forming and good dimensional stability. However, ordinary impact-resistant polystyrene materials have insufficient low-temperature toughness and cannot meet the toughness requirements of outdoor products in cold seasons. There are problems of low-temperature brittleness and stress cracking. In special places such as gas stations and gas mines, the hidden dangers caused by static sparks are very dangerous, so materials are required to have antistatic functions. The antistatic modification of materials can be divided into external coating metho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L51/04C08L53/02C08L35/06C08L87/00C08K5/134C08K5/20B65D65/38
CPCB65D65/38C08L51/04C08L2201/04C08L2205/035C08L2205/08C08L53/02C08L35/06C08L87/005C08K5/1345C08K5/20
Inventor 孙超正宋晓辉肖华明郝垠龙陶四平
Owner TIANJIN KINGFA NEW MATERIAL
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