Anti-static thermoplastic elastomer composite and preparation method thereof

A thermoplastic elastomer and composition technology, applied in the field of composition and its preparation, can solve the problems affecting the appearance of the final product, high surface resistance, adsorption of dust, etc., and achieve the goal of being suitable for large-scale production, improving electrical conductivity, and low raw material cost Effect

Inactive Publication Date: 2012-03-14
SHANGHAI KUMHO SUNNY PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the surface resistance of styrene-based elastomers is relatively high, about 1×10 16 ~1×10 17 Ω / □, which makes its products easy to charge and absorb dust, which affects the appearance of the final product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～6

[0031] The raw materials are as follows, and the specific components of the raw materials are shown in Table 1.

[0032] SEBS is Kraton G of Kraton Polymer Company; 100# white oil is naphthenic oil of Xinjiang Karamay Petrochemical, and its naphthenic weight content is 45%; Polypropylene; antistatic agent 1 is glycerol monostearyl; antistatic agent 2 is ethoxylated amine; antioxidant is Irganox 1010 from Ciba Specialty Chemicals.

[0033] Table 1

[0034] composition

Example 1

Example 2

Example 3

Example 4

Example 5

Example 6

SEBS1651

40

40

25

15

-

30

SEBS1650

-

-

10

10

50

-

100# white oil

50

50

50

30

35

30

PPY2600

9.6

9.6

14.4

9.4

14.2

39.6

calcium carbonate

-

-

-

35

-

-

Antistatic agent 1

0.2

-

0.2

0....

Embodiment 7

[0039] A preparation method of an antistatic thermoplastic elastomer composition, the method comprising the following steps:

[0040] (1) Prepare materials according to the following components and parts by weight: styrene block copolymer resin 25kg, rubber processing oil 60kg, inorganic mineral filler 10kg, antistatic agent glycerol monostearate 0.3kg, antioxidant [β -(3,5-di-tert-butyl-4-hydroxyl phenyl) propionic acid] pentaerythritol 0.1kg; Wherein, styrenic block copolymer resin is styrene / ethylene-butylene / styrene block copolymer ( SEBS), the number average molecular weight is 100,000, the styrene content is 20wt%, the rubber processing oil is paraffin oil, and the inorganic mineral filler is kaolin;

[0041] (2) Add the above components into a high-speed mixer in turn and mix at high speed for 1min, then place the fully mixed mixture in a twin-screw extruder with a length-to-diameter ratio of 36:1, control the processing temperature to 190°C, and The rotating speed of ...

Embodiment 8

[0043] A preparation method of an antistatic thermoplastic elastomer composition, the method comprising the following steps:

[0044] (1) Prepare materials according to the following components and parts by weight: styrene block copolymer resin 50kg, rubber processing oil 30kg, polyolefin 40kg, inorganic mineral filler 50kg, antistatic agent ethoxylated amine 0.6kg, antioxidant [ β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid] pentaerythritol 0.3kg; Wherein, styrenic block copolymer resin is styrene / ethylene-ethylene-propylene / styrene block copolymer (SEEPS), the number-average molecular weight is 300,000, the styrene content is 50wt%, the rubber processing oil is paraffin oil, the polyolefin is a mixture of polypropylene homopolymer and polypropylene copolymer, and the melt index is 50g / 10min (230 ℃×2.16kg), the inorganic mineral filler is kaolin;

[0045] (2) Add the above components into a high-speed mixer in turn and mix at high speed for 1min, then place the fully ...

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Abstract

The invention relates to an anti-static thermoplastic elastomer composite and a preparation method thereof, wherein raw materials comprise the following ingredients in parts by weight: 25-50 styrenic block copolymer resin, 30-60 rubber process oil, 0-40 polyolefin, 0-50 inorganic mineral filler, 0.2-0.6 antistatic agent and 0.1-0.3 antioxygen, all the ingredients are sequentially added in a high-speed mixer to be mixed at high speed, then are placed in a double-screw extruder to be extruded and granulated, so the product is obtained. Compared with the prior art, an electric conduction channelcan be built in a polymer for bringing charges to a ground wire, the antistatic agent can be transferred to the product surface to form a layer of hydrophilic substance, water in the air is absorbed to form the electric conduction channel, so that the electrical conductivity of the product surface can be improved, the product transparency cannot be influenced, meanwhile, the product can be configured into various colors, and the adopted raw materials have lower costs and simple technology, so the composite provided by the invention is applicable to mass production.

Description

technical field [0001] The invention relates to a composition and a preparation method thereof, in particular to an antistatic thermoplastic elastomer composition and a preparation method thereof. Background technique [0002] Thermoplastic elastomers have the soft elasticity of rubber at room temperature, and can be processed and recycled like thermoplastics at temperatures higher than their melting point or softening point. There are many types of thermoplastic elastomers, among which styrene thermoplastic elastomers (or styrene block copolymers) are the most widely used type of elastomers. It is a block copolymer composed of glassy polystyrene as the hard segment and rubbery polybutadiene or isoprene as the soft segment. It is widely used in automobiles, construction, sporting goods, Medical equipment, electronic appliances, daily necessities and other fields. Lagging of plastic parts is a major application of styrene-based elastomers. For example, secondary injection ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L53/00C08L53/02C08L23/12C08L23/14C08K13/02C08K5/01C08K3/34C08K3/26C08K3/30C08K3/36C08K5/103C09K3/16
Inventor 廖志荣张平罗明华辛敏琦
Owner SHANGHAI KUMHO SUNNY PLASTICS
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