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A kind of low odor, low emitting pc/abs alloy and preparation method thereof

A low-emission, low-odor technology, applied in the field of low-emission PC/ABS alloy and its preparation, and low odor, can solve the problems of impact and influence on the mechanical properties of ABS alloy materials, achieve improved compatibility, simple preparation process, low The effect of smell

Active Publication Date: 2016-03-30
TIANJIN KINGFA NEW MATERIAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disclosed a kind of ABS alloy molded object of odor improvement among USP6297307, by adding a mixture of zinc oxide, magnesium oxide and at least one epoxy compound, although this method can improve odor, these additives are harmful to ABS alloy material The mechanical properties, especially the impact have a great influence
[0006] The above-mentioned method solves 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 Reduces odor, but in fact material odor is the result of the interaction of multiple component odors

Method used

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  • A kind of low odor, low emitting pc/abs alloy and preparation method thereof
  • A kind of low odor, low emitting pc/abs alloy and preparation method thereof
  • A kind of low odor, low emitting pc/abs alloy and preparation method thereof

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preparation example Construction

[0043] Preparation of jellyfish pellets:

[0044]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.

[0045] Each component content (percentage by weight) of jellyfish grain of table 1

[0046]

Embodiment 1-5

[0048] 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:

[0049] 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

[0078] 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 a low-odor, low-emission PC / ABS alloy and a preparation method thereof, comprising: PC resin 30-80%; ABS resin: 4-66.4%; compatibilizer: 2-10%; jellyfish granules 1-5%; additives 0.1-3%; the preparation method is to mix PC resin, ABS resin, compatibilizer and additives in a high mixer for 1-3 minutes; In the main feeding port, add jellyfish pellets from the side feeding port, melt and extrude, granulate and dry. The present invention uses maleic anhydride grafts as compatibilizers, which can greatly improve the compatibility of composite materials, and jellyfish particles with high-melt foaming PP as carriers as air stripping agents, which can effectively remove the Various volatile small molecules and organic compounds without affecting its mechanical properties, 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 Patents(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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