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Multifunctional modified PBT powder and preparation method thereof

A multifunctional and modified technology, applied in the field of polymer materials, can solve the problems of poor anti-aging performance, limited application scope, low impact strength, etc., and achieve the effects of good processability, enhanced heat resistance, and improved heat resistance.

Inactive Publication Date: 2015-08-19
QINGDAO WANLI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the pure PBT material has the disadvantages of low notched impact strength, flammability, and poor aging resistance, which greatly limit its application range. Expand the scope of application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A multi-functional modified PBT powder, its components are proportioned by mass percentage: PBT 63%, calcium carbonate particles with a particle size of 0.1 μm to 20 μm 10%, tetrabromobisphenol A carbonate oligomer 15%, POE-g-MAH 8%, anti-aging agent 2%, calcium stearate 0.3%, erucamide 0.5%, antioxidant 0.2%, pentaerythritol stearate 1%. Wherein, the PBT is polybutylene terephthalate, and its intrinsic viscosity is 0.85~1.2dl / g; the POE-g-MAH is a maleic anhydride grafted ethylene-octene copolymer; the anti- The aging agent is a compound of hindered amine light stabilizer HS-944 and HS-622 at a mass ratio of 1:1; the antioxidant is a hindered phenolic antioxidant 1076 and phosphite at a mass ratio of 1:1 A compound of antioxidant 168.

[0021] The preparation method is as follows: (1) Dry PBT at 120°C-140°C for 4-6 hours, dry tetrabromobisphenol A carbonate oligomer at 80°C-85°C for 30-45 minutes, and set aside; (2) Weigh calcium carbonate particles and calcium stear...

Embodiment 2

[0023] A multi-functional modified PBT powder, the composition of which is: 78% PBT, 5% calcium carbonate particles with a particle size of 0.1 μm to 20 μm, 10% melamine polyphosphate, POE-g-MAH 4 %, anti-aging agent 1.5%, silane coupling agent 0.2%, erucamide 0.3%, antioxidant 0.2%, pentaerythritol stearate 0.8%. Wherein, the PBT is polybutylene terephthalate, and its intrinsic viscosity is 0.85~1.2dl / g; the POE-g-MAH is a maleic anhydride grafted ethylene-octene copolymer; the anti- The aging agent is a compound of hindered amine light stabilizer HS-944 and HS-622 at a mass ratio of 1:1; the antioxidant is a hindered phenolic antioxidant 1076 and phosphite at a mass ratio of 1:1 A compound of antioxidant 168.

[0024] Its preparation method is as follows: (1), dry PBT at 120°C-140°C for 4-6 hours, dry melamine polyphosphate at 80°C-85°C for 30-45 minutes, and set aside; (2), according to the quality Percent ratio Weigh calcium carbonate particles and silane coupling agent ...

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Abstract

The present invention discloses multifunctional modified PBT powder and a preparation method thereof, wherein the multifunctional modified PBT powder comprises, by mass, 60-80% of PBT, 5-10% of calcium carbonate particles, 8-15% of a fire retardation agent, 4-8% of POE-g-MAH, 0.5-2% of an anti-aging agent, 0.1-0.5% of a surface treating agent, 0.1-1% of erucylamide, 0.1-0.5% of an antioxidant, and 0.5-1% of pentaerythrityl tetrastearate. The multifunctional modified PBT powder of the present invention has the following beneficial effects that on the basis of the PBT, the significant functions of toughening, reinforcing and heat resistance improving are provided, characteristics of excellent fire retardation, excellent aging resistance, size stability, good processability, and good appearance are provided, and the multifunctional modified PBT powder provides good practical values and broad prospects in the fields of electronic appliances, vehicle industry, machinery parts, building materials and the like.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a multifunctional modified PBT powder and a preparation method thereof. Background technique [0002] Polybutylene terephthalate (PBT) is a crystalline linear saturated polyester resin, which has been widely used in many fields. However, the pure PBT material has the disadvantages of low notched impact strength, flammability, and poor anti-aging performance, which greatly limits its application range. Expand the scope of application. Contents of the invention [0003] The object of the present invention is to provide a multifunctional modified PBT powder with flame retardancy, toughening, strengthening and anti-aging properties and a preparation method thereof. [0004] The technical solution adopted by the present invention to solve the technical problem is: a multi-functional modified PBT powder, whose components are proportioned by mass percentage: PBT 60%-80%, c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L51/06C08K13/06C08K3/26C08K5/20C08K5/103C08K5/523C08K5/3492
Inventor 不公告发明人
Owner QINGDAO WANLI TECH
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