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Composite reinforcing agent and PC/PBT alloy, and applications of composite reinforcing agent and PC/PBT alloy

A reinforcing agent and alloy technology, which is applied in the field of plastic alloys, can solve the problems of poor material fluidity, increase the start-stop response time of the nozzle, and affect the forming accuracy, etc., and achieve the effects of improving low-temperature impact performance, improving mechanical properties, and improving transparency

Active Publication Date: 2016-06-01
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fluidity of the material is poor, and a large wire feeding pressure is required to extrude, which will increase the start-stop response time of the nozzle, thereby affecting the forming accuracy

Method used

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  • Composite reinforcing agent and PC/PBT alloy, and applications of composite reinforcing agent and PC/PBT alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Preparation of composite reinforcing agent

[0044] Accurately weigh 30-70 parts of carboxylated styrene-butadiene rubber, preferably 50 parts; accurately weigh 70-30 parts of basic magnesium sulfate whiskers, preferably 50 parts; under the mixing of a high-speed heating mixer, when the mixing temperature reaches 50 degrees, 1-3 parts of silane coupling agent are added to obtain a composite reinforcing agent after they are fully blended in a mixer.

Embodiment 2

[0046] Preparation of PC / PBT alloy material

[0047] Accurately weigh the PC material of 70 mass parts, the PBT material of 30 mass parts, the composite reinforcing agent of 5 mass parts, the sodium dihydrogen phosphate of 0.25 mass parts, the light stabilizer 622 parts of 0.3 mass parts; Ethylene glycol, the antioxidant 1010 of 0.3 mass parts, the shell layer-PMMA core layer-cross-linked polybutadiene rubber of 12 mass parts; Add in the high-speed stirrer, motor speed 1300 rev / mins, mix at room temperature Take it out after 2 minutes, put the mixed material into the hopper of Ф18 twin-screw extruder, melt, extrude, cool, and granulate to make PC / PBT for FDM. Among them, the temperature of the twin-screw extruder from the first section to the sixth section is controlled at 230°C, 240°C, 250°C, 255°C, 255°C, 260°C, the head temperature is 255°C, and the screw speed is 350°C. rpm. The cooling water temperature is 20-40°C.

[0048] Example 2

[0049] Preparation of PC / PBT all...

Embodiment 3

[0052] Preparation of PC / PBT alloy material

[0053] Accurately weigh 40 parts by mass of PC material, 60 parts by mass of PBT material, 10 parts by mass of composite reinforcing agent, 0.5 parts by mass of sodium dihydrogen phosphate, 0.3 parts by mass of light stabilizer 622, and 0.3 parts by mass of polyethylene Diol, 0.3 parts by mass of antioxidant 1010, 16 parts by mass of shell layer-polymethyl methacrylate core layer-crosslinked polybutyl acrylate material. Sample preparation is the same as in Example 1.

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Abstract

The invention relates to a plastic alloy, and in particular, relates to a composite reinforcing agent and a polycarbonate-polybutylene phthalate (PC / PBT) plastic alloy. The composite reinforcing agent includes basic magnesium sulfate whiskers, rubber and a silane coupling agent. The alloy comprises polycarbonate, polyethylene terephthalate and the composite reinforcing agent. The invention also provides an application of the composite reinforcing agent and an application of the alloy.

Description

technical field [0001] The invention relates to a plastic alloy, in particular to a composite reinforcing agent and a polycarbonate-butylene phthalate plastic alloy. Background technique [0002] 3D printing technology is based on the computer three-dimensional design model, through the software layered discrete and numerical control forming system, using laser beams, hot-melt nozzles, etc. to accumulate metal powder, ceramic powder, plastic, cell tissue and other special materials layer by layer Bonding, and finally overlaying and molding to create a solid product. Unlike the traditional manufacturing industry, which shapes and cuts raw materials through mechanical processing methods such as moulds, turning and milling to finally produce finished products, 3D printing transforms a three-dimensional entity into several two-dimensional planes. The manufacturing complexity is reduced. [0003] 3D printing technology mainly includes the following processes, layered solid manu...

Claims

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Application Information

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IPC IPC(8): C08L13/00C08L23/16C08L23/08C08L9/02C08K7/08C08K3/30C08K3/34C08K3/26C08L69/00C08L67/02C08K13/02
Inventor 邵静波张师军刘建叶董穆邹浩尹华吕芸李杰
Owner CHINA PETROLEUM & CHEM CORP
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