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PBT/ABS (polybutylene terephthalate/acrylonitrile-butadiene-styrene) alloy material and preparation method thereof

A technology of alloy materials and antioxidants, applied in the field of PBT/ABS alloy materials and their preparation, can solve problems such as poor compatibility, and achieve the effects of favorable forming processing, stable phase morphology, and easy operation

Inactive Publication Date: 2014-01-22
QINGDAO XINZHAN PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, ABS is a non-crystalline polymer, and PBT is a crystalline polyester, and the compatibility between PBT and ABS is poor.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A PBT / ABS alloy material, the composition of which is: PBT 33%, ABS 60%, MAG 5%, polysiloxane 1.5%, phenolic antioxidant 1076 and phosphite antioxidant The compound of agent 168 is 0.5%, wherein the relative molecular mass of PBT is 3500-5000, and the content of acrylonitrile in ABS is 15%-35% by mass.

[0020] Preparation method: (1) Dry PBT at 120°C-130°C for 4-6 hours, control the moisture content below 0.03%, and dry it for later use; (2) Dry ABS at 80°C-85°C for 2-4 hours , the moisture content is controlled below 0.03%, and it is used after drying; (3) Weigh the dried PBT and ABS according to the weight ratio, and mix them evenly; (4) Weigh the MAG, polysiloxane and phenol according to the weight ratio Mix the compound of antioxidant 1076 and phosphite antioxidant 168 evenly, then add it to the mixer together with the mixture of PBT and ABS and continue mixing for 2 to 5 minutes; (5) Mix the above well The raw materials are put into the twin-screw extruder, melte...

Embodiment 2

[0022] A kind of PBT / ABS alloy material, its composition ratio by mass percentage is: PBT 23%, ABS 70%, MAG 6%, calcium stearate 0.5%, phenolic antioxidant 1076 and phosphite antioxidant The compound of agent 168 is 0.5%, wherein the relative molecular mass of PBT is 3500-5000, and the content of acrylonitrile in ABS is 15%-35% by mass.

[0023] Preparation method: (1) Dry PBT at 120°C-130°C for 4-6 hours, control the moisture content below 0.03%, and dry it for later use; (2) Dry ABS at 80°C-85°C for 2-4 hours , the moisture content is controlled below 0.03%, and it is used after drying; (3) Weigh the dried PBT and ABS according to the weight ratio, and mix them evenly; (4) Weigh the MAG, calcium stearate and phenolic acid according to the weight ratio Mix the compound of antioxidant 1076 and phosphite antioxidant 168 evenly, then add it to the mixer together with the mixture of PBT and ABS and continue mixing for 2 to 5 minutes; (5) Mix the above well The raw materials are ...

Embodiment 3

[0025] A PBT / ABS alloy material, the composition of which is: PBT 40%, ABS 55%, MAG 3%, EVA wax 1.5%, phenolic antioxidant 1076 and phosphite antioxidant 168 0.5% of the compound, wherein the relative molecular mass of PBT is 3500-5000, and the content of acrylonitrile in ABS is 15%-35% by mass.

[0026] Preparation method: (1) Dry PBT at 120°C-130°C for 4-6 hours, control the moisture content below 0.03%, and dry it for later use; (2) Dry ABS at 80°C-85°C for 2-4 hours , the moisture content is controlled below 0.03%, and dried for later use; (3) Weigh the dried PBT and ABS according to the weight ratio, and mix them evenly; (4) Weigh the MAG, EVA wax and phenolic anti-corrosion Mix the compound of oxygen agent 1076 and phosphite antioxidant 168 evenly, then add it to the mixer together with the mixture of PBT and ABS and continue mixing for 2 to 5 minutes; (5) Mix the above well-mixed raw materials Put into the twin-screw extruder, melt extrude and granulate, under the conv...

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PUM

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Abstract

The invention discloses a PBT / ABS (polybutylene terephthalate / acrylonitrile-butadiene-styrene) alloy material and a preparation method thereof. The PBT / ABS alloy material comprises the following components in percentage by mass: 20-40% of PBT, 70-50% of ABS, 2-8% of MAG, 0.2-3% of a lubricant and 0.2-0.5% of an antioxidant. The PBT / ABS alloy material disclosed by the invention has the beneficial effects that MGE (methyl methacrylate-glycidyl methacrylate-ethyl acrylate) is added to perform reactive compatibilization and blending compatibilization on the PBT / ABS alloy material to ensure that the performance of the PBT / ABS alloy material is effectively improved, system phases are dispersed more uniformly, and the phase morphology is more stable to obtain more benefits for molding processing, then the PBT / ABS alloy material has the characteristics of both PBT and ABS, the ABS has the function of improving the impact strength of PBT, the PBT has the function of better improving the processability and chemical reagent resistance of the ABS at the same time, so that the PBT / ABS alloy material has the characteristics of stable size, high strength, good appearance, high chemical reagent resistance and the like.

Description

technical field [0001] The invention relates to a polymer material, in particular to a PBT / ABS alloy material and a preparation method thereof. Background technique [0002] Polybutylene terephthalate (PBT) has a wide range of applications in engineering plastics, especially in automobiles, construction and structural materials, due to its high toughness, strength, water resistance, chemical corrosion resistance and non-conductivity. However, PBT also has its own shortcomings, such as: large crystal shrinkage, poor dimensional stability and notch sensitivity, which limit its application. ABS resin (acrylonitrile-butadiene-styrene copolymer) is currently the largest and most widely used plastic, and the price is relatively cheap. ABS not only has the mechanical properties of toughness, hardness, and rigid phase balance, but also has good dimensional stability, surface gloss, low temperature resistance, coloring processability, and processing fluidity. Therefore, blending PBT...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L55/02C08L67/02C08L33/12C08L33/14C08L87/00B29C47/92B29C48/92
CPCB29C48/04B29C48/40
Inventor 不公告发明人
Owner QINGDAO XINZHAN PLASTIC
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