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Toughened and reinforced PC/PTT alloy and preparation method thereof

A toughening and alloying technology, applied in the field of toughened and reinforced PC/PTT alloy and its preparation, can solve the problems of limiting the application effect and application range of PC/PTT alloy, poor mechanical properties, poor interface bonding, etc. The effect of easy industrial production and popularization and application, simple preparation process and low cost

Inactive Publication Date: 2015-08-19
QINGDAO JIAYIYANG IND & TRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since PC is a non-crystalline polymer, PC / PTT is a typical non-crystalline and crystalline blend system, resulting in defects such as poor interface bonding, low impact strength, and poor mechanical properties, which will greatly limit the use of PC. Application effect and scope of application of PTT alloy in various fields

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A toughened and reinforced PC / PTT alloy, the composition of which is: PC 50%, PTT 30%, SMA 3%, MBS 5%, inorganic filler 10%, 2-hydroxy-4-methoxy 1.5% benzophenone, 0.1% γ-aminopropyltrimethoxysilane, 0.1% antioxidant 1010, 0.3% calcium stearate, the PC is bisphenol with a weight average molecular weight of 20000-40000g / mol Type A aromatic polycarbonate, the PTT is polytrimethylene terephthalate with an intrinsic viscosity of 0.7-1.2 dL / g, and the inorganic filler has an average length of 10-500 μm, an average diameter of 3-30 μm and a long diameter Fibrous wollastonite with a ratio of 3 to 100.

[0022] Preparation method: (1), dry PC and PTT in a forced air circulation oven at 110°C-130°C for 6-8 hours, and set aside; (2), weigh inorganic filler and γ-ammonia according to weight ratio Add propyltrimethoxysilane to a high-speed mixer with a cylinder temperature of 80°C to 120°C, stir at a speed of 3000 to 4500 rpm for 10 to 60 minutes, then cool to below 40°C and disch...

Embodiment 2

[0024] A toughened and reinforced PC / PTT alloy, the composition of which is: PC 52%, PTT 20%, SMA 3%, MBS 8%, inorganic filler 15%, 2-hydroxyl-4-n-octyloxy 1% benzophenone, 0.3% gamma-aminopropyltrimethoxysilane, 0.2% compound of antioxidant 1076 and antioxidant 168, 0.5% pentaerythritol stearate, and the PC is weight average Bisphenol A aromatic polycarbonate with a molecular weight of 20,000-40,000 g / mol, the PTT is polytrimethylene terephthalate with an intrinsic viscosity of 0.7-1.2 dL / g, and the inorganic filler has an average length of 10-500 μm , Fibrous wollastonite with an average diameter of 3-30 μm and an aspect ratio of 3-100.

[0025] Preparation method: (1), dry PC and PTT in a forced air circulation oven at 110°C-130°C for 6-8 hours, and set aside; (2), weigh inorganic filler and γ-ammonia according to weight ratio Add propyltrimethoxysilane to a high-speed mixer with a cylinder temperature of 80°C to 120°C, stir at a speed of 3000 to 4500 rpm for 10 to 60 minu...

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Abstract

The present invention discloses a toughened and reinforced PC / PTT alloy and a preparation method thereof. The toughened and reinforced PC / PTT alloy is prepared from the following components by mass percentage: 50%-60% of PC, 20%-30% of PTT, 2%-5% of a compatibilizer, 5%-10% of MBS, 5%-15% of inorganic filler, 0.5%-2% of a light stabilizer, 0.1%-0.5% of a coupling agent, 0.1%-0.5% of an antioxidant and 0.1%-1% of a lubricant. The toughened and reinforced PC / PTT alloy has the beneficial effects that the toughened and reinforced PC / PTT alloy combines the respective advantages of PC and PTT; the toughened and reinforced PC / PTT alloy has good application effects of toughening and reinforcing; the toughened and reinforced PC / PTT alloy has characteristics of high heat resistance, good workability, high strength, good toughness, excellent anti-aging quality, low cost, wide adaptability and simple preparation processes; and the industrial production, popularization and application of the toughened and reinforced PC / PTT alloy is convenient.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a toughened and reinforced PC / PTT alloy and a preparation method thereof. Background technique [0002] Due to the high molecular rigidity and steric hindrance of polycarbonate (PC), its melting temperature is high, processing is difficult, and it is difficult to produce large thin-walled products, and the residual stress of the product is large, which is prone to stress cracking, and PC is sensitive to notches. The hydrolytic stability and solvent resistance are not good, and these defects limit the practical application of PC. Polytrimethylene terephthalate (PTT) is a new type of polyester material with fast crystallization speed. It is easy to realize high-speed molding and has excellent solvent resistance. However, its products have a large molding shrinkage rate and low notched impact strength. Disadvantages such as insufficient rigidity at high temperature. Blen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L67/02C08L51/04C08K13/06C08K9/06C08K7/10B29B9/06B29C47/92B29C48/92
CPCC08L69/00B29B9/06B29C48/92B29C2948/92704C08K2201/003C08K2201/004C08K2201/016C08L2201/08C08L2205/035C08L67/02C08L51/04C08L35/06C08K13/06C08K9/06C08K7/10C08K5/132C08K5/098
Inventor 不公告发明人
Owner QINGDAO JIAYIYANG IND & TRADE