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PC/ABS (Polycarbonate/Acrylonitrile-Butadiene-Styrene) alloy with low odor and low emission and preparation method of PC/ABS alloy

A low-emission, low-odor technology, applied in low-emission PC/ABS alloy and its preparation, and low-odor field, to achieve the effect of simple preparation process, low cost and low odor

Active Publication Date: 2014-04-09
TIANJIN KINGFA NEW MATERIAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The above-mentioned methods solve the odor problem of the material to varying degrees. However, the above-mentioned method is only aimed at the influence of a certain component on the odor, thereby adding an adsorbent to reduce the odor. result of action

Method used

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  • PC/ABS (Polycarbonate/Acrylonitrile-Butadiene-Styrene) alloy with low odor and low emission and preparation method of PC/ABS alloy
  • PC/ABS (Polycarbonate/Acrylonitrile-Butadiene-Styrene) alloy with low odor and low emission and preparation method of PC/ABS alloy
  • PC/ABS (Polycarbonate/Acrylonitrile-Butadiene-Styrene) alloy with low odor and low emission and preparation method of PC/ABS alloy

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0045] Preparation of jellyfish pellets:

[0046]Fully mix high-melt-strength polypropylene with different melt strengths and mineral fillers (talc powder, calcium carbonate or barium sulfate) according to the ratio shown in Table 1, extrude strip-shaped polypropylene in an extruder, and then Shred it into polypropylene pre-expanded granules; use water as a foaming agent to foam the polypropylene pre-expanded granules to prepare expanded polypropylene with high melt strength; Polypropylene and water were mixed in a high-speed mixer for 5-10 minutes. By controlling the mixing time, jellyfish particles with the water content shown in Table 1 were prepared and released for use.

[0047] Table 1 The content of each component of jellyfish pellets (weight percent)

[0048]

Embodiment 1-5

[0050] A kind of low odor, low emission PC / ABS alloy, its raw material formula is as shown in table 3, and its preparation method comprises the following steps:

[0051] Weigh each component according to the weight percentage, mix in the high mixer for 1-3min; mix evenly to obtain the premix; put the premix in the main feeding port of the twin-screw extruder, Add jellyfish pellets, melt and extrude, then granulate and cool to obtain PC / ABS alloy. Determination of its performance, odor and volatile content, the specific data are listed in Table 4.

Embodiment 5

[0080] Comparing Example 5 with Comparative Example 5, the water content of jellyfish pellets in Comparative Example 5 is relatively low, and the prepared PC / ABS alloy has poor odor and high volatile matter content.

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Abstract

The invention discloses PC / ABS (Polycarbonate / Acrylonitrile-Butadiene-Styrene) alloy with low odor and low emission and a preparation method of the PC / ABS alloy. The PC / ABS alloy contains the following components: 30%-80% of PC resin, 4%-66.4% of ABS resin, 2%-10% of a compatibilizer, 1%-5% of aqueous master batch, and 0.1%-3% of an assistant. The preparation method of the PC / ABS alloy comprises the following steps: mixing the PC resin, the ABS resin, the compatibilizer and the assistant in a high mixing machine for 1-3 minutes; and after mixing evenly, placing in a main feeding port of a twin-screw extruder, adding the aqueous master batch from a side feeding port, melting and extruding, granulating and drying to obtain the PC / ABS alloy. According to the PC / ABS alloy and the preparation method, by using maleic anhydride grafted polymer as the compatilizer, the compatibility of a composite material can be greatly improved, by taking the aqueous master batch with high-melt foamed PP (Polypropylene) as a carrier as a gas stripping agent, various volatile small molecules and organic compounds generated during a machining process can be effectively removed, while mechanical properties are also not affected, and the prepared PC / ABS alloy has the characteristics of low odor and low emission.

Description

technical field [0001] The invention relates to a PC / ABS alloy, in particular to a PC / ABS alloy with low odor and low emission and a preparation method thereof. Background technique [0002] PC / ABS alloy is an alloy material synthesized by PC (polycarbonate) and ABS (acrylonitrile-butadiene-styrene copolymer) in a certain proportion. Polycarbonate (PC) has the advantages of high impact strength, creep resistance, good dimensional stability, heat resistance, transparency, and excellent dielectric properties, but it also has poor processing fluidity, prone to stress cracking, sensitive to notches, and Disadvantages such as poor abrasiveness; acrylonitrile / butadiene / styrene copolymer (ABS) has good chemical resistance and molding processability, but its heat resistance and weather resistance are relatively poor. The PC / ABS alloy obtained by blending and modifying the two can complement each other in performance. Not only the heat resistance, impact strength and tensile strengt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L55/02C08L51/06C08L23/12C08K3/34C08K3/26C08K3/30C08J3/22B29C47/92B29C48/92
CPCB29C48/04B29C48/40B29C48/625B29C48/875B29C48/92B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895
Inventor 肖华明李欣陶四平宋晓东李晟张春怀李聪
Owner TIANJIN KINGFA NEW MATERIAL
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