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Core-shell-particle toughened modified PC/PET alloy material

A technology for toughening and modifying alloy materials, which is applied in the field of toughening and modifying PC/PET alloy materials by core-shell particles, can solve the problem that the mechanical properties of PC/PET alloy materials can not be expected to achieve the desired effect, and the improvement of toughness is limited. The problems of strength, stiffness, heat resistance and processability decrease, to achieve the effect of improving toughness and rigidity, low cost, good processability and heat resistance

Inactive Publication Date: 2015-06-10
QINGDAO JIAYIYANG IND & TRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the use of elastomer toughening can greatly improve the impact resistance of PC / PET alloy materials, but at the same time it also causes a serious decline in its strength, stiffness, heat resistance and processing performance; when using inorganic rigid particles to toughen at a certain Under the same conditions, it shows simultaneous toughening and strengthening, but the increase in toughness is limited; when the elastomer and inorganic rigid particles are blended, the interaction of the two substances will affect each other, so that the mechanical properties of the PC / PET alloy material cannot be expected. Effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A core-shell particle toughened modified PC / PET alloy material, the composition of which is: PC 55%, PET 25%, styrene-acrylonitrile-methacrylate hydroglyceride (SAG) 3% 10% ultrafine calcium carbonate particles with a particle size of 10-100nm, 5% ethylene-propylene-diene copolymer (EPDM), 0.5% methacrylic acid, 0.3% cumene hydrogen peroxide, and antioxidant 1010 0.3 %, pentaerythritol stearate (PETS) 0.9%. Wherein, the PC is bisphenol A type aromatic polycarbonate, the weight average molecular weight is 20000-40000g / mol; the PET is polyethylene terephthalate, and its characteristic viscosity is 0.6-0.9dL / g.

[0022] Preparation method: (1), dry PC at 110°C-130°C for 3-4 hours in a blast dryer, dry PET at 130°C-150°C for 3-4 hours, and set aside; (2), Add ultra-fine calcium carbonate particles with a particle size of 10-100nm according to the weight ratio into a high-speed mixer with a barrel temperature of 50°C to 75°C, stir for 3-15 minutes, and then add formazan ...

Embodiment 2

[0024] A core-shell particle toughened modified PC / PET alloy material, the composition of which is: PC 55%, PET 30%, styrene-acrylonitrile-methacrylate hydroglyceride (SAG) 3% , 5% ultrafine calcium carbonate particles with a particle size of 10-100nm, 5% styrene-ethylene-butylene-styrene block copolymer (SEBS), 0.5% methacrylic acid, dicyclohexyl peroxydicarbonate 0.2%, the compound of antioxidant 1010 and antioxidant 168 0.3%, pentaerythritol stearate (PETS) 1%. Wherein, the PC is bisphenol A type aromatic polycarbonate, the weight average molecular weight is 20000-40000g / mol; the PET is polyethylene terephthalate, and its characteristic viscosity is 0.6-0.9dL / g.

[0025] Preparation method: (1), dry PC at 110°C-130°C for 3-4 hours in a blast dryer, dry PET at 130°C-150°C for 3-4 hours, and set aside; (2), Add ultra-fine calcium carbonate particles with a particle size of 10-100nm according to the weight ratio into a high-speed mixer with a barrel temperature of 50°C to 7...

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PUM

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Abstract

The invention discloses a core-shell-particle toughened modified PC / PET alloy material. The core-shell-particle toughened modified PC / PET alloy material comprises following ingredients, by mass, 45 to 60% of PC, 5 to 30% of PET, 1 to 3% of a compatilizer, 5 to 10% of an inorganic rigid particle, 3 to 10% of an elastomer, 0.2 to 1% of methacrylic acid, 0.1 to 0.5% of an initiator, 0.1 to 0.5% of an anti-oxidant, and 0.1 to 1% of a lubricant. Beneficial effects are that: compared with the prior art, the inorganic rigid particle is used for surface pretreatment, and interaction and grafting reaction with the elastomer are carried out, so that a core-shell structure is formed and is used for modifying a PC / PET alloy material, wherein the inorganic rigid particle is taken as the core of the core-shell structure, and the elastomer is taken as the shell of the core-shell structure; original excellent performance of the PC / PET system is maintained, toughness and rigidity of the PC / PET alloy material are increased greatly; the core-shell-particle toughened modified PC / PET alloy material possesses excellent processability and heat resistance, is low in cost, and possesses a promising application prospect.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a core-shell particle toughened modified PC / PET alloy material. Background technique [0002] Polycarbonate / polyethylene terephthalate (PC / PET) alloy has many excellent properties, but the compatibility of PC and PET is limited when the two polymers are blended. Adding the third component to the PC / PET blend system can significantly improve the compatibility of the two polymers in the system. The third component usually has good compatibility or adhesion with the matrix resin, and its main function is to "bridge" between PC and PET micelles or react with the matrix resin PC and PET to form chemical bonds and combine with each other , thereby improving the overall compatibility of PC / PET alloys. With the expansion of the application range of PC / PET alloy materials, the requirements for functionalization and high performance of PC / PET alloy materials are put forward, es...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L67/02C08K9/04C08K3/26B29B9/06
CPCC08L69/00B29B9/06C08K2201/003C08L2201/08C08L2205/03
Inventor 不公告发明人
Owner QINGDAO JIAYIYANG IND & TRADE
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