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Halogen-free, flame-retardant and antistatic master batch for modifying polybutylene telephthalate

A polybutylene terephthalate, flame retardant and antistatic technology, applied in the field of halogen-free flame retardant and antistatic masterbatch, can solve the problems of difficult mixing, easy generation of static electricity, limited use, etc., and achieve good resistance Combustibility and antistatic modification effects, clean production improvement, and simplified production process

Inactive Publication Date: 2014-04-09
QINGDAO XINZHAN PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because polybutylene terephthalate is easy to burn and has high resistivity, under the conditions of 65% relative humidity and 25°C, its moisture absorption rate is only 0.4%, and its resistivity is as high as 10. 14 Ω·cm, it is very easy to generate static electricity, which limits its use in electrical and electronic industries
In order to meet the performance requirements, it is generally modified by adding additives, but most of the additives currently used are powders. When mixed with raw materials, it is extremely difficult to mix evenly, and the dust raised during mixing is even more polluting. The surrounding environment and not conducive to clean production, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A halogen-free flame-retardant antistatic masterbatch of modified polybutylene terephthalate. Compound of 20% propenyl phosphate, 15% polybutylene terephthalate, 3% polyethylene wax, 1% silane coupling agent, hindered phenol antioxidant 1076 and phosphite antioxidant 168 1%.

[0019] Preparation method: (1) weigh each component according to the weight ratio for use; (2) mix N-methylol propionamide methyl phosphonate, alkyl propylene phosphoric acid, polybutylene terephthalate Alcohol ester, polyethylene wax, silane coupling agent and the compound of hindered phenol antioxidant 1076 and phosphite antioxidant 168 are added to the high-speed mixer and mixed thoroughly for 3 to 10 minutes; (3) the above mixture Add a twin-screw extruder to extrude and granulate, dry and package to obtain a halogen-free flame-retardant antistatic masterbatch of modified polybutylene terephthalate.

Embodiment 2

[0021] A halogen-free flame-retardant antistatic masterbatch of modified polybutylene terephthalate. Hydroxyethyl) octylmethyl ammonium bis-p-toluenesulfonate 30%, polybutylene terephthalate 12%, polypropylene wax 4%, titanate coupling agent 2%, hindered phenol antioxidant 1076 Compound with phosphite antioxidant 168 2%.

[0022] Preparation method: (1) Weigh each component according to the weight ratio for use; (2) Dimethyl methylphosphonate (DMMP), bis(2-hydroxyethyl)octylmethyl bis-p-toluenesulfonate Add ammonium acid, polybutylene terephthalate, polypropylene wax, titanate coupling agent, hindered phenol antioxidant 1076 and phosphite antioxidant 168 into the high-speed mixer, fully Mix for 3 to 10 minutes; (3) Add the above mixture to a twin-screw extruder to extrude and granulate, then dry and pack to obtain a halogen-free flame-retardant Static masterbatch.

Embodiment 3

[0024] A halogen-free flame-retardant antistatic masterbatch of modified polybutylene terephthalate. GMS) 10%, polybutylene terephthalate 10%, EVA wax 3%, aluminate coupling agent 1%, hindered phenol antioxidant 1076 and phosphite antioxidant 168 compound 1 %.

[0025] Preparation method: (1) weigh each component according to the weight ratio for use; (2) mix cresyl diphenyl phosphate, glyceryl monostearate (GMS), polybutylene terephthalate , EVA wax, aluminate coupling agent and the compound of hindered phenol antioxidant 1076 and phosphite antioxidant 168 are added to the high-speed mixer and mixed thoroughly for 3 to 10 minutes; (3) Add the above mixture After being extruded and granulated by a twin-screw extruder, it is dried and packaged to obtain a halogen-free flame-retardant antistatic masterbatch of modified polybutylene terephthalate.

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Abstract

The invention discloses a halogen-free, flame-retardant and antistatic master batch for modifying polybutylene telephthalate. The master batch comprises components by mass: 50-80% of a halogen-free flame retardant, 10%-30% of an anti-static agent, 10%-20% of a carrier, 3%-5% of a lubricating dispersant, 1%-3% of a coupling agent and 1%-2% of an antioxidant. The prepared master batch has the characteristics of high concentration, low cost and convenient use. Due to the adoption of the halogen-free flame retardant, the master batch has secure, smoke-suppressing, non-toxic and environment-friendly high flame-retardant property; and the anti-static agent reduces surface resistivity to 10<8>-10<10> ohms.cm while guaranteeing anti-static property, so that good flame-retardant and anti-static modification effects can be achieved by using the master batch in producing polybutylene telephthalate. Besides, a production process can be simplified; cost is reduced; use is convenient; production efficiency is increased; environment pollution can be prevented; clean production is facilitated; and mixing quality can be increased.

Description

technical field [0001] The invention relates to a master batch, in particular to a halogen-free flame-retardant and antistatic master batch of modified polybutylene terephthalate. Background technique [0002] Polybutylene terephthalate (PBT) has the characteristics of high strength, good electrical performance and low cost, so it is widely used in electronics, home appliances, automobiles and other industries. However, because polybutylene terephthalate is easy to burn and has high resistivity, under the conditions of 65% relative humidity and 25°C, its moisture absorption rate is only 0.4%, and its resistivity is as high as 10. 14 Ω·cm, it is very easy to generate static electricity, which limits its use in electrical and electronic industries. In order to meet the performance requirements, it is generally modified by adding additives, but most of the additives currently used are powders. When mixed with raw materials, it is extremely difficult to mix evenly, and the dust...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08K5/5353C08K5/5333C08K5/42C08K5/523C08K5/103C08K13/02C08J3/22
Inventor 不公告发明人
Owner QINGDAO XINZHAN PLASTIC
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