Based on modified bamboo powder pc/abs alloy and preparation method thereof

A technology of bamboo powder and alloy, applied in the field of PC/ABS alloy based on modified bamboo powder and its preparation, can solve the problem of no toughening effect and the like, and achieve the effects of reducing viscosity, improving impact performance of alloy, and overcoming agglomeration

Active Publication Date: 2016-05-25
SHANGHAI ZHONGLEI NEW MATERIAL SCI CO LTD
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  • Abstract
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Problems solved by technology

But the material also has no toughening effect

Method used

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  • Based on modified bamboo powder pc/abs alloy and preparation method thereof

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Embodiment

[0022] This embodiment includes the following steps:

[0023] 1) Preparation of PEW: Add LLDPE into a three-neck flask, heat and stir, nitrogen purging, melt at 180-200°C for 5-10min, then heat to 350-380°C for 5-6h, cool and discharge to obtain PEW.

[0024] 2) Preparation of PEW-g-MAH: Put PEW, MAH, and DCP in a four-necked flask according to the weight ratio (100-200): (30-80): (0.5-1.0), and then add the weight ratio (256-344 ) toluene, heated and stirred, heated to 100-120°C and stirred for 1-2h, cooled to 25°C, added acetone at a weight ratio (78-156) to obtain a white precipitate, and put it into a Soxhlet extractor after Buchner funnel suction filtration Acetone was refluxed for 8-10 hours, and dried at 50°C to obtain PEW-g-MAH graft copolymer with a graft ratio of 10-18%.

[0025] 3) ABS‐g‐MAH preparation: ABS, MAH, DCP and antioxidant by weight ratio (100‐400): (40‐100): (0.5‐1.0): (0.02‐0.1) in 100‐200r / After blending at a high speed for 5 min, the ABS‐g‐MAH graf...

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Abstract

The invention relates to a manufacturing method of a modified bamboo powder-based PC / ABS (Poly carbonate / Acrylonitrile Butadiene Styrene) alloy in the field of high polymer materials. The manufacturing method comprises the following steps: carrying out blending and internal mixing on bamboo powder, ABS-g-MAH (Maleic Anhydride), a fiber pre-dispersing agent and a coupling agent to obtain an ABS-g-MAH-g-bamboo powder composite; blending the ABS-g-MAH-g-bamboo powder composite, PC-g-EVA (Ethylene Vinyl Acetate) and PEW (polyethylene wax)-g-MAH at high speed and carrying out melt blending to obtain the modified bamboo powder-based PC / ABS alloy. The alloy material manufactured by the method disclosed by the invention not only has superhigh normal-temperature impact tenacity and low-temperature impact tenacity, but also has low viscosity property, is easy for molding processing of larger products, and has relatively high tensile strength, relatively low cost and an environment-friendly effect as well as a wide market value.

Description

technical field [0001] The invention relates to a technique in the field of polymer materials, in particular to a PC / ABS alloy based on modified bamboo powder and a preparation method thereof. Background technique [0002] Polycarbonate (PC) is an engineering plastic with excellent performance, which has good comprehensive performance, high mechanical strength, good impact toughness, stable size and good heat resistance; acrylonitrile-butadiene-styrene copolymer (ABS ), has excellent impact resistance, good low temperature performance and chemical resistance, and is easy to process. PC / ABS alloy products not only retain the toughness, heat resistance, and dimensional stability of PC resin, but also have the excellent low-temperature impact resistance and processing fluidity of ABS. [0003] However, for some electronic appliances or automotive interior and exterior trim parts, they are susceptible to partial cracking caused by contact and collision with objects, such as pri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08L55/02C08L97/02C08L51/06B29C47/92B29C48/92
CPCB29C48/92B29C2948/92704C08L87/00C08L2205/035C08L55/02C08L97/02C08L51/06
Inventor 刘春艳王正有林珊珊
Owner SHANGHAI ZHONGLEI NEW MATERIAL SCI CO LTD
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