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Nanometer montmorillonite modified polybutylene terephthalate material and preparation method thereof

A technology of polybutylene terephthalate and nano-montmorillonite, applied in the field of montmorillonite modified polybutylene terephthalate material and its preparation, can solve the problem of large molding shrinkage and notched impact strength low level problem

Inactive Publication Date: 2017-06-06
格润德(青岛)新型环保建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disadvantage is that the notched impact strength is low and the molding shrinkage is large

Method used

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  • Nanometer montmorillonite modified polybutylene terephthalate material and preparation method thereof

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Embodiment Construction

[0009] The technical solutions of the present invention will be further described below in conjunction with specific preferred embodiments.

[0010] Nano-montmorillonite modified polybutylene terephthalate material, its components are proportioned by mass percentage: PBT 80%, nano-montmorillonite 15%, ethylene-octene copolymer (antioxidant) 2 %, coupling agent 2%, TAS-2A dispersion lubricant: 1.0, white oil: appropriate amount.

[0011] Preparation method: (1), dry PC at 110°C to 130°C for 3 to 4 hours in a blast dryer, and dry PBT at 130°C to 150°C for 3 to 4 hours before use; (2), Weigh the dry PBT, antistatic agent HDC-102, weather resistance agent, and bright lubricant (TAF) according to the weight ratio, and add them to the high-speed mixer, stir together for 2 to 10 minutes, and then discharge into the twin-screw extruder Extrude after melt blending in the machine, cool and granulate, and dry to obtain an antistatic and weather-resistant masterbatch for use; (3), take t...

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Abstract

A purpose of the present invention is to provide a special PBT modification material, which does not affect the mechanical properties of the material. The technical scheme for solving the technical problem comprises that the nanometer montmorillonite modified PBT material comprises, by mass, 80% of polybutylene terephthalate, 15% of nanometer montmorillonite, 2.0% of an ethylene-octene copolymer (antioxidant), 2.0% of a coupling agent, 1.0% of a TAS-2A dispersion lubricant, and a proper amount of white oil.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a montmorillonite modified polybutylene terephthalate material and a preparation method thereof. Background technique [0002] Polybutylene terephthalate, English name polybutylene terephthalate (referred to as PBT), belongs to the polyester series, which is produced by polycondensation of butanediol and terephthalic acid (PTA) or terephthalate (DMT). It is a milky white translucent to opaque, crystalline thermoplastic polyester resin made through a kneading process. Together with PET, it is collectively referred to as thermoplastic polyester, or saturated polyester. PBT is a milky white translucent to opaque, crystalline thermoplastic polyester. It has high heat resistance, toughness, fatigue resistance, self-lubrication, and low coefficient of friction. The disadvantage is that the notched impact strength is low and the molding shrinkage is large. Contents of the...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08L23/08C08K13/06C08K3/34B29B9/06B29C47/92B29C48/92
Inventor 黄亚楠
Owner 格润德(青岛)新型环保建材有限公司