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Preparation method of low-temperature high-impact PC/ABS alloy material

A technology of alloy material and high impact resistance, which is applied in the field of preparation of PC/ABS alloy material, can solve the problems of weakening performance and difficulty in meeting demand, and achieves the effect of improving cold resistance and increasing the degree of contact.

Active Publication Date: 2022-01-28
碳中和环保科技广州有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its performance is weakened at low temperature and it is difficult to meet the demand

Method used

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  • Preparation method of low-temperature high-impact PC/ABS alloy material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] This embodiment provides a low-temperature high-impact PC / ABS alloy material, which is prepared from the following raw materials: PC resin, ABS resin, nano filler, modified silane coupling agent, antioxidant and flame retardant.

[0016] Among them, the modified silane coupling agent is prepared by the following method: 20 parts by weight of phthalate, 2 parts by weight of sodium methylate and 100 parts by weight of dimethylacetamide are respectively added to the device, stirred evenly; Argon gas, under the protection of argon gas, heated to 145°C, stirred and slowly added 30 parts by weight of aminopropyltriethoxysilane, the stirring speed was 400r / min, and the original temperature and stirring speed were maintained for 1h, and then Raise the temperature to 160°C, reflux the solution vigorously for 1 hour, lower the temperature, distill under reduced pressure, remove the solvent, and filter to obtain a viscous liquid that is the modified silane coupling agent.

[0017]...

Embodiment 2

[0025] This embodiment provides a low-temperature high-impact PC / ABS alloy material, which is prepared from the following raw materials: PC resin, ABS resin, nano filler, modified silane coupling agent, antioxidant and flame retardant.

[0026] Among them, the modified silane coupling agent is prepared by the following method: 20 parts by weight of phthalate, 2 parts by weight of sodium methylate and 100 parts by weight of dimethylacetamide are respectively added to the device, stirred evenly; Nitrogen gas, under the protection of nitrogen gas, heat to 145°C, stir and slowly add 30 parts by weight of aminopropyltriethoxysilane, the stirring speed is 400r / min, maintain the original temperature and stirring speed for 2h, then increase the temperature Reflux the solution vigorously for 2 hours at 160°C, lower the temperature, distill under reduced pressure, remove the solvent, and filter to obtain a viscous liquid that is the modified silane coupling agent.

[0027] Among them, t...

Embodiment 3

[0034] This embodiment provides a low-temperature high-impact PC / ABS alloy material, which is prepared from the following raw materials: PC resin, ABS resin, nano filler, modified silane coupling agent, antioxidant and flame retardant.

[0035] Among them, the modified silane coupling agent is prepared by the following method: 20 parts by weight of phthalate, 2 parts by weight of sodium methylate and 100 parts by weight of dimethylacetamide are respectively added to the device, stirred evenly; Nitrogen gas, under the protection of nitrogen gas, heat to 145°C, stir and slowly add 30 parts by weight of aminopropyltriethoxysilane, the stirring speed is 400r / min, maintain the original temperature and stirring speed for 2h, then increase the temperature Reflux the solution vigorously for 1.5 hours at 160°C, cool down, distill under reduced pressure, remove the solvent, and filter to obtain a viscous liquid that is the modified silane coupling agent.

[0036] Among them, the nano-fi...

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Abstract

The invention belongs to the technical field of high polymer materials, and particularly relates to a preparation method of a low-temperature high-impact PC / ABS alloy material. According to the invention, a silane coupling agent is modified, so that the activity of molecular chain segments of the PC / ABS material is improved, the regularity of molecular chains of the PC / ABS material is destroyed, and the cold resistance of the PC / ABS material is improved; and an Al2O3-SiO2 composite nano filler is added into a PC / ABS mixture and interacts with the modified silane coupling agent to form a stable covalent bond, so that the binding force among the components is increased, the prepared PC / ABS material has better tensile strength and bending strength, and the impact resistance of the material at low temperature is greatly improved.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a method for preparing a low-temperature high-impact PC / ABS alloy material. Background technique [0002] Polycarbonate (PC) is a thermoplastic polymer with good transparency, odorless, non-toxic, and amorphous. It has good insulation, heat resistance, and non-toxicity. It has a wide temperature range and high dimensional stability. , Widely used in automotive, electrical and electronic, construction, office equipment, packaging, sports equipment, medical care and other fields. However, its wear resistance is poor, it is easy to scratch and wear, has poor processing fluidity, is prone to stress cracking, and is sensitive to notches. Usually polycarbonate and acrylonitrile-butadiene-styrene copolymer (ABS) are used to make polycarbonate / ABS alloy. [0003] PC / ABS is an important engineering plastic alloy, which has good formability and low temperature impact resistance...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L55/02C08K3/22C08K3/36C08K3/32C08K5/544C08K13/02
CPCC08L69/00C08K2003/2227C08K2201/011C08K2003/323C08L55/02C08K3/22C08K3/36C08K3/32C08K5/544C08K13/02
Inventor 高兆波顾元泽王东昕张春丽
Owner 碳中和环保科技广州有限公司