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Poly(ethylene terephthalate) toughening master batch and preparation method thereof

A polyethylene terephthalate and toughening masterbatch technology, applied in the field of polymer materials, can solve the problems of low impact strength, large dimensional shrinkage, and decreased impact strength of products, and achieve improved notched impact toughness, Improvement of flexural modulus and heat resistance and reduction of raw material costs

Inactive Publication Date: 2014-06-25
QINGDAO XINZHAN PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when PET is used as an injection molding engineering plastic, there are disadvantages such as slow crystallization speed, large dimensional shrinkage rate, and low impact strength of the product. While increasing the crystallization speed and crystallinity, the impact strength of the product is further reduced. Therefore, it is necessary to increase it. Toughness modification, in order to meet the requirements of injection molding PET technology and physical and mechanical properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A polyethylene terephthalate toughening masterbatch, the components of which are proportioned by mass percentage: calcium carbonate 80% with an average particle size between 0.5 μm and 5 μm, polyethylene terephthalate 15% ester, 2% silane coupling agent, 1.5% talc, 1% pentaerythritol stearate, 0.5% compound of hindered phenol antioxidant 1010 and phosphite antioxidant 168.

[0019] Preparation method: (1) Weigh each component according to the weight ratio for use; (2) Add calcium carbonate and silane coupling agent into a high-speed mixer and mix evenly at a temperature of 80°C to 120°C, and the mixing time is 15 ~ 45 minutes to get the surface-treated calcium carbonate, then add polyethylene terephthalate, talcum powder, pentaerythritol stearate and hindered phenol antioxidant 1010 and phosphite antioxidant 168 Compound, continue to mix for 10-20 minutes; (3) Add the above-mentioned mixed materials into a twin-screw extruder for extrusion, cooling, granulation, drying ...

Embodiment 2

[0021] A polyethylene terephthalate toughening masterbatch, the components of which are proportioned by mass percentage: calcium carbonate 85% with an average particle diameter between 0.5 μm and 5 μm, polyethylene terephthalate 10% ester, 3% titanate coupling agent, 1% kaolin, 0.8% TAS-2A dispersant, 0.2% compound of hindered phenol antioxidant 1010 and phosphite antioxidant 168.

[0022] Preparation method: (1) Weigh each component according to the weight ratio for use; (2) Add calcium carbonate and titanate coupling agent into a high-speed mixer and mix evenly at a temperature of 80°C to 120°C, and the mixing time 15 to 45 minutes to obtain surface-treated calcium carbonate, and then add polyethylene terephthalate, kaolin, TAS-2A dispersant, hindered phenol antioxidant 1010 and phosphite antioxidant 168 Continue mixing for 10 to 20 minutes; (3) Add the above-mentioned mixed materials to a twin-screw extruder for extrusion, cooling, granulation, drying and packaging to obtai...

Embodiment 3

[0024] A polyethylene terephthalate toughening masterbatch, the components of which are proportioned by mass percentage: calcium carbonate 73% with an average particle size between 0.5 μm and 5 μm, polyethylene terephthalate 20% ester, 4% aluminum titanium composite coupling agent, 1% aluminum hydroxide, 1.5% ethylene bis stearic acid amide, 0.5% compound of hindered phenol antioxidant 1076 and phosphite antioxidant 168 .

[0025] Preparation method: (1) Weigh each component according to the weight ratio for use; (2) Add calcium carbonate and aluminum-titanium composite coupling agent into a high-speed mixer and mix evenly at a temperature of 80°C to 120°C. 15 to 45 minutes to obtain surface-treated calcium carbonate, and then add polyethylene terephthalate, aluminum hydroxide, ethylene bis stearic acid amide and hindered phenol antioxidant 1076 and phosphite Mix the compound of antioxidant 168 for 10-20 minutes; (3) add the above-mentioned mixed materials into a twin-screw e...

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Abstract

The invention discloses poly(ethylene terephthalate) toughening master batch and a preparation method thereof. The master batch comprises following components by weight: 70-90% of an inorganic filling material, 10-20% of matrix resin, 1-4% of a coupling agent, 0.5-2% of a nucleating agent, 0.5-2% of a dispersant and 0.1-1% of an antioxidant. Beneficial effects of the master batch and the preparation method are that: compared with the prior art, when the prepared master batch is used for poly(ethylene terephthalate), the obtained product material is largely enhanced in notch impact strength, significantly improved in bending modulus and heat resistance, reduced in raw material cost and convenient to be used by a user, and has good economic effects. The preparation method is simple and practical and is convenient to operate.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a polyethylene terephthalate toughening masterbatch and a preparation method thereof. Background technique [0002] Polyethylene terephthalate (PET) is a linear thermoplastic polymer that was first industrialized by Dupont in 1953. It is a typical semi-crystalline polymer with excellent wear resistance, heat resistance and corrosion resistance. properties, electrical insulation and mechanical properties, and are widely used in the fields of fibers, films and beverage bottles. However, when PET is used as an injection molding engineering plastic, there are disadvantages such as slow crystallization speed, large dimensional shrinkage rate, and low impact strength of the product. While increasing the crystallization speed and crystallinity, the impact strength of the product is further reduced. Therefore, it is necessary to increase it. Toughness modification, in order to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08K13/06C08K3/26C08K3/34C08K3/22C08K5/098C08J3/22
Inventor 不公告发明人
Owner QINGDAO XINZHAN PLASTIC
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