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Anti-static poly(ethylene terephthalate) material and preparation method thereof

A technology of polyethylene terephthalate and ethylene terephthalate is applied in the field of antistatic polyethylene terephthalate material and its preparation, and can solve the problem of weakening and disappearing of antistatic effect, etc. problem, to achieve the effect of excellent antistatic performance, mild conditions and good compatibility

Inactive Publication Date: 2008-07-30
合诚技术股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the use of the film, the antistatic effect will be weakened or disappeared due to the friction loss of the antistatic agent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Preparation of antistatic agent: Weigh 1 mole of sodium polystyrene sulfonate and 1 mole of nano-silver sol based on sodium styrene sulfonate group, reflux in 500ml water for 5 hours, and depressurize to vacuum at 80°C The antistatic agent is prepared by drying under the condition of 0.09MPa, grinding with a mechanical grinder, and grinding to a particle size of 0.1-5 μm.

[0024] Preparation of antistatic polyethylene terephthalate material: in parts by weight, weigh 1936 grams of polyethylene terephthalate, 60 grams of antistatic agent prepared above, 4 grams of antioxidant, After mixing evenly, extrude and granulate at 255°C. The antioxidant consists of tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]pentaerythritol ester and tris(2,4-di-tert-butylphenyl)phosphite in a molar ratio of 1 : 2 composition.

Embodiment 2

[0026] Preparation of antistatic agent: Weigh 1 mole of sodium polystyrene sulfonate and 1 mole of nano-silver sol based on sodium styrene sulfonate group, reflux in 500ml water for 6 hours, and depressurize to vacuum at 100°C It is dried under the condition of 0.08MPa, and ground to a particle size of 0.1-5μm by mechanical grinding method to obtain an antistatic agent.

[0027] Preparation of antistatic polyethylene terephthalate material: in parts by weight, take polyethylene terephthalate 1863 grams, 130 grams of antistatic agent prepared above, antioxidant (same as implementing Example 1) 7 grams, after mixing evenly, extrude and granulate at 260°C.

Embodiment 3

[0029] Preparation of antistatic agent: Weigh 1 mole of sodium polystyrene sulfonate and 1 mole of nano-silver sol based on sodium styrene sulfonate group, reflux in 500ml water for 5.5 hours, and depressurize to vacuum at 90°C It is dried under the condition of 0.07MPa, and ground to a particle size of 0.1-5μm by mechanical grinding method to obtain an antistatic agent.

[0030] Preparation of antistatic polyethylene terephthalate material: in parts by weight, take polyethylene terephthalate 1790 grams, 200 grams of antistatic agent prepared above, antioxidant (same as implementing Example 1) 10 grams, after mixing evenly, extrude and granulate at 265°C.

[0031] In above-mentioned embodiment, raw material sodium polystyrene sulfonate is the product of U.S. Aldrich Company; Nano-silver sol is the product of Lucky Company; ) propionic acid] pentaerythritol ester and tris (2,4-di-tert-butylphenyl) phosphite are formed in a molar ratio of 1:2, and the model is antioxidant B215,...

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Abstract

The invention discloses an antistatic polyethylene glycol terephthalate and a preparation method thereof. The antistatic polyethylene glycol terephthalate calculated according to the parts by weight comprises 96.8-89.5 parts of polyethylene glycol terephthalate, 3-10 parts of antistatic agent, and 0.2-0.5 part of antioxidant. The antioxidant is composed of [Beta-(3,5-di-tert-butyl-4-hydroxy-phenyl) methyl acetic acid] pentaerythritol ester and tri dimethylphenyl phosphate (2,4-di-tert-butyl-benzyl) according to the mol ratio of 1:2. The antistatic agent comprises water-soluble polymer sodium polystyrene sulfonate and nano-silver colloid with equal molar, and the preparation method comprises the following steps: the water-soluble polymer sodium polystyrene sulfonate and the nano-silver colloid with equal molar flow back in water for 5-6 hours, the coordination reaction happens between the molar water-soluble polymer sodium polystyrene sulfonate and the nano-silver colloid to cause the molar water-soluble polymer sodium polystyrene sulfonate and the nano-silver colloid to be combined together, and then the composition is dried and ground. The antistatic polyethylene glycol terephthalate has good antistatic performance, the preparation process is simple, and the preparation method is convenient and easy to be operated.

Description

technical field [0001] The invention relates to the field of antistatic polyester, in particular to an antistatic polyethylene terephthalate material and a preparation method thereof. Background technique [0002] Polyethylene terephthalate is a highly crystalline polymer with excellent physical and mechanical properties in a wide temperature range, good friction resistance and dimensional stability. As an important engineering plastic, it is widely used It is used in various fields of electronic appliances, information communication, and daily necessities. However, polyethylene terephthalate has a compact structure, high crystallinity, hydrophobicity, poor hygroscopicity, high specific resistance, large frictional voltage, and is prone to static electricity. Electrostatic charges are more likely to accumulate in low humidity environments. The accumulation of static electricity will cause vicious accidents such as vacuuming, electric shock, and even explosion after sparks ...

Claims

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Application Information

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IPC IPC(8): C08L67/03C08K13/02C09K3/16C08K5/524
Inventor 蒋文真李文国李刚吴水珠赵建青
Owner 合诚技术股份有限公司
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