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Core-shell particle filled and modified PET/PTT alloy

A PTT20%, core-shell technology, applied in the field of PET/PTT alloy filled with core-shell particles, can solve the problems of reducing toughness, reducing the rigidity of PET/PTT, etc., and achieve low cost, increased rigidity, antistatic performance, and mechanical properties Good results

Inactive Publication Date: 2015-08-19
王妮娜
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, adding only elastomers to PET / PTT can achieve a good toughening modification effect, but reduces the rigidity of PET / PTT; adding only inorganic particles to PET / PTT can improve rigidity, but reduce toughness

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A modified PET / PTT alloy filled with core-shell particles, its components are proportioned by mass percentage: PET 30%, PTT 30%, E-MA-GMA 3%, calcium carbonate particles 15%, diisocyanate 2% , ethylene glycol 4%, antioxidant 1076 and antioxidant 168 compound 0.5%, pentaerythritol stearate 1%, glass fiber 12%, polyethylene oxide 2.5%, the PET is characteristic viscosity The polyethylene terephthalate is 0.8-1.1dL / g polyethylene terephthalate, the PTT is polytrimethylene terephthalate with an intrinsic viscosity of 0.7-0.9dL / g, and the calcium carbonate particles have a particle size of less than 5 μm Ground calcium carbonate, the glass fiber is an alkali-free chopped glass fiber whose surface is treated with a silane coupling agent.

[0021] Preparation method: (1) Dry PET and PTT in a forced air circulation oven at 110°C-120°C for 6-8 hours, dry calcium carbonate particles at 60°C-100°C for 1-2 hours, wait (2) Weigh the dry calcium carbonate particles according to the ...

Embodiment 2

[0023] A modified PET / PTT alloy filled with core-shell particles, the composition of which is: PET 60%, PTT 20%, E-MA-GMA 3%, calcium carbonate particles 5%, diisocyanate 0.5% , 1.5% ethylene glycol, 0.1% antioxidant 1010, 0.4% modified ethylene bis fatty acid amide, 8% glass fiber, 1.5% polyether ester amide. Polyethylene terephthalate, the PTT is polytrimethylene terephthalate with an intrinsic viscosity of 0.7 to 0.9 dL / g, the calcium carbonate particles are heavy calcium carbonate with a particle size of less than 5 μm, and the glass The fiber is an alkali-free chopped glass fiber whose surface is treated with a silane coupling agent.

[0024] Preparation method: (1) Dry PET and PTT in a forced air circulation oven at 110°C-120°C for 6-8 hours, dry calcium carbonate particles at 60°C-100°C for 1-2 hours, wait (2) Weigh the dry calcium carbonate particles according to the weight ratio and add them to the mixer at a barrel temperature of 40°C to 70°C. After 30 minutes, add...

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PUM

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Abstract

The invention discloses a core-shell particle filled and modified PET / PTT alloy, which comprises the following components by mass: 30%-60% of PET, 20%-30% of PTT, 2%-4% of E-MA-GMA, 5%-15% of calcium carbonate particles, 0.5%-2% of diisocyanate, 1%-4% of ethylene glycol, 0.1%-0.5% of an antioxidant, 0.1%-1% of a lubricant, 8%-12% of glass fiber, and 1%-3% of an antistatic agent. The core-shell particle filled and modified PET / PTT alloy provided by the invention integrates the respective advantages of PET and PTT, also has excellent toughening, reinforcing, stiffening and antistatic properties, has good mechanical properties, high heat resistance, good appearance, and is low in cost, thus being suitable for industrial production and popularization and application.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a PET / PTT alloy filled with core-shell particles and modified. Background technique [0002] Polyethylene terephthalate (PET) / polytrimethylene terephthalate (PTT) is a new type of polymer plastic alloy material, which has excellent molding processing, impact resistance, and chemical resistance. Therefore, it will have broad application prospects in the fields of automobiles, electronic appliances, home appliances, and fibers. However, PET / PTT has unstable mechanical properties, poor high heat resistance, and poor antistatic performance, which will greatly limit its application effect. In order to improve the performance of PET / PTT, it is often necessary to add a third component to PET / PTT for modification, such as compatibilizers, inorganic particles, elastomers, etc., to obtain a composite system with considerable practical value. However, adding only elastomers to P...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08L53/00C08K13/06C08K9/10C08K3/26C08K9/06C08K7/14C08J3/22B29B9/06B29C47/92B29C48/92
Inventor 不公告发明人
Owner 王妮娜