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Antistatic polymer blending composition

A polymer and composition technology, applied in the field of polymer composite materials and its preparation, can solve problems such as poor effect of blending compositions, deterioration of formability, and influence on rheological properties

Inactive Publication Date: 2013-05-08
HENAN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although these measures can eliminate the electrostatic charges accumulated on the surface of polymer materials to a certain extent or during the period (Patent No. ZL 91107954; ZL 96102654.5; Application of Engineering Plastics, 2004, 32(2), 41~42; Synthetic Resins and Plastics , 2010, 27(1), 10~12), but there are always some problems: (1) Since the ionic antistatic agent has a certain migration ability inside the polymer, the compatibility with the polymer and the speed of migration to the surface is an important factor affecting the performance of the blend composition
Therefore, its blend composition generally has the disadvantages of poor effect and strong dependence on environmental humidity. In the case of low humidity, it is difficult to meet the antistatic requirements; at the same time, during the entire service life of the polymer material, these ionic antistatic The electrostatic agent will gradually migrate to the surface and disappear, so that the polymer material loses its antistatic properties during its service life
(2) For metal or non-metal inorganic conductive fillers, a large amount of addition is required to obtain the required antistatic properties, and the compatibility of these metal or non-metal inorganic conductive fillers with polymers leads to poor interfacial bonding strength, resulting in The mechanical properties of the polymer composition are reduced, and its rheological properties are also affected, resulting in poor formability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Get following raw material by mass parts:

[0028] Ultra-high molecular weight polyethylene M2 100 parts

[0029] Activated carbon (particle size 8μm, pore size 2-2.2nm, resistivity 0.6Ωcm, iodine absorption value 2000mg / g)

[0030] 10 copies

[0031] Polyethylene wax PEW-10L 0.4 parts

[0032] Antioxidant YS1790 0.5 part

[0033]Put the raw materials weighed according to the above-mentioned ratio of mass and number into a high-speed mixer and mix them thoroughly for 10-15 minutes, then add them to a screw extruder to granulate or directly extrude them into rods, pipes, and plates in the desired shape Or shaped products, the surface resistance of which is 10% of pure ultra-high molecular weight polyethylene 14 Ω down to 10 8 Ω order; yield strength increased from 23MPa of pure ultra-high molecular weight polyethylene to 27MPa; Vicat softening point increased from 91°C of pure ultra-high molecular weight polyethylene to 102°C.

Embodiment 2

[0035] Get following raw material by mass parts:

[0036] PVC SG-5 type 90 parts

[0037] Chlorinated polyethylene 135A 10 parts

[0038] Activated carbon (carbon content greater than 95%, particle size 15μm, pore size 2-6nm, resistivity 0.7Ωcm, iodine absorption value 2100mg / g) 18 parts

[0039] Calcium zinc composite stabilizer 517A 3.5 parts

[0040] Polyethylene wax PEW-10L 0.5 parts

[0041] Light stabilizer 622 0.01 parts

[0042] First, put titanate coupling agent TM-931 and activated carbon into a high-speed mixer at a ratio of 1.8:100 parts by mass and mix for 20 minutes, then weigh each raw material according to the ratio of parts by mass of the above composition, and combine all raw materials together Put it into a high-speed mixer and knead to 110°C, then cold mix until the temperature is lower than 40°C, then add it to a screw extruder to granulate or directly extrude to form a pipe or plate in the desired shape. The surface resistivity of its blend compositi...

Embodiment 3

[0044] Get following raw material by mass parts:

[0045] Polypropylene PPH-XD-075 100 parts

[0046] Activated carbon (carbon content greater than 95%, particle size 10μm, pore size 2-3.5nm, resistivity 0.85Ωcm, iodine absorption value 1600mg / g) 8 parts

[0047] Polyethylene wax TX-H 0.5 parts

[0048] Light stabilizer 770 0.03 parts

[0049] Antioxidant 1010 0.5 parts

[0050] First, the silane coupling agent KH-550 and activated carbon are put into a high-speed mixer in a ratio of 1.8:100 parts by mass and mixed for 15 minutes, and then each raw material is weighed according to the ratio of parts by mass of the above composition, and all raw materials are put into high-speed mixing together. Machine stirring and mixing 20min, then add screw type extruder granulation, the surface resistance of gained blend composition is 10 10 Ω order of magnitude.

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Abstract

The invention relates to an antistatic polymer blending composition. The antistatic polymer blending composition is characterized by comprising the following raw materials in parts by mass: 100 parts of thermoplastic polymer, 6 to 20 parts of active carbon and 0.5 to 6 parts of auxiliary agent, wherein the raw materials are subjected to melt blending to obtain the antistatic polymer blending composition of which the surface resistance is 106 to 1,012 ohms. In the antistatic polymer blending composition, the conductive active carbon forms a three-dimensional network structure in a polymer matrix to ensure that the surface resistance of the polymer blending composition reaches 106 to 1,012 ohms; and the used technology and the preparation process are simple and easy to control.

Description

technical field [0001] The invention belongs to the technical field of polymer composite materials and their preparation, and in particular relates to an antistatic polymer blend composition, in particular to a method of utilizing the conductive properties of activated carbon and physically mixing to prepare a compound capable of stably controlling polymerization. A permanent antistatic polymer blend composition that improves the surface resistance of the blend composition. Background technique [0002] Polymer materials have become one of the three basic materials supporting modern society because of their light weight, wear resistance, corrosion resistance, good electrical and thermal insulation properties, and easy processing and molding. For a long time, polymer materials have been used as electrical insulating materials because of their excellent dielectric properties. However, high insulation also brings electrostatic hazard problems to polymer materials. Polymer mat...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L23/12C08L27/06C08L71/02C08L77/00C08L25/06C08L33/12C08L67/02C08L69/00C08L81/02C08L59/00C08L71/08C08L79/08C08L71/12C08L81/06C08L55/02C08L51/00C08L23/08C08K9/06C08K9/04C08K3/04
Inventor 阎新萍戴亚辉杨佳李继功曹新鑫秦瑜陶逸飞曹瑞怡罗玉香
Owner HENAN POLYTECHNIC UNIV
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