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A kind of low-odor glass fiber reinforced AS composition and preparation method thereof

A low-odor, composition-based technology, applied in the field of modified plastics, can solve problems such as impact and mechanical property impact of AS alloy materials, and achieve the effects of simple preparation process, improved mechanical strength, and low emission

Active Publication Date: 2016-06-29
TIANJIN KINGFA NEW MATERIAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these additives have a great influence on the mechanical properties of AS alloy materials, especially the impact
[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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  • A kind of low-odor glass fiber reinforced AS composition and preparation method thereof
  • A kind of low-odor glass fiber reinforced AS composition and preparation method thereof
  • A kind of low-odor glass fiber reinforced AS composition and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0045]Preparation of jellyfish pellets:

[0046] Fully mix high-melt-strength polypropylene with different melt strengths and mineral fillers according to the ratio shown in Table 1, extrude strip-shaped polypropylene in the extruder, and then chop it into polypropylene pre-foaming Particles; using water as a foaming agent, the polypropylene pre-expanded particles are expanded to prepare expanded polypropylene with high melt strength; the expanded polypropylene with high melt strength and water are mixed in a high-speed mixer 5-10min, prepare jellyfish pellets with the water content shown in Table 1, and release them for use.

[0047] Each component content (percentage by weight) of jellyfish grain of table 1

[0048]

Embodiment 1-4

[0050] A kind of low-odor glass fiber reinforced AS composition, its raw material formula is as shown in table 3, and its preparation method comprises the following steps:

[0051] Weigh AS resin, compatibilizer 1, compatibilizer 2 and auxiliary agent by weight percentage and mix in high mixer for 1-3min; mix evenly to obtain premix; put premix in the twin-screw extruder In the main feeding port, glass fiber and jellyfish pellets are added from the side feeding port for melt extrusion, granulation and drying. Determination of its performance, odor and volatile content, the specific data are listed in Table 4.

Embodiment 4

[0077] Comparing Example 4 with Comparative Example 4, the water content of jellyfish pellets in Comparative Example 4 is lower, and the prepared glass fiber reinforced AS composition has a poorer odor and higher volatile content.

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Abstract

The invention discloses a low-odor glass-fiber-enhanced AS (acrylonitrile-styrene) composition comprising the following components: 54.4-86.4% of AS resin, 10-30% of glass fiber, 1-5% of compatibilizer 1, 1-5% of compatibilizer 2, 1-5% of jellyfish grains and 0.1-3% of an assistant; the preparation method is as follows: mixing the AS resin, the compatibilizer 1, the compatibilizer 2 and the assistant in a high mixing machine for 1-3min; putting the mixture into a main feeding port of a double screw extruder, adding the glass fiber and the jellyfish grains from a side feeding port for melt extrusion and drying granulation to obtain the low-odor glass-fiber-enhanced AS (acrylonitrile-styrene) composition. The low-odor glass-fiber-enhanced AS (acrylonitrile-styrene) composition uses a maleic anhydride grafted AS blend as the compatibilizer 1 for enhancing the interface coupling effect of AS and the glass fiber, and uses a maleic anhydride grafted material as the compatibilizer 2 for greatly improving the compatibility of the composite, and uses the jellyfish grains, using high-melt foaming PP (polypropylene) as a carrier, as a stripping agent for effective removal of various volatile small molecules and organic compounds produced in the machining process, and the prepared low-odor glass-fiber-enhanced AS (acrylonitrile-styrene) composition has the characteristics of low odor, excellent mechanical properties and the like.

Description

technical field [0001] The invention relates to the field of modified plastics, in particular to a low-odor glass fiber reinforced AS composition and a preparation method thereof. Background technique [0002] Styrene-acrylonitrile resin (AS) is a hard, transparent material. The styrene component makes AS hard, transparent and easy to process; the acrylonitrile component makes AS chemically and thermally stable. AS has strong load bearing capacity, chemical reaction resistance, thermal deformation resistance and geometric stability. Adding glass fiber additives can increase strength and thermal deformation resistance, and reduce thermal expansion coefficient. [0003] However, due to the strong odor of glass fiber reinforced AS composite materials, its application in the fields of automobiles and home appliances is limited; therefore, a low-odor glass fiber reinforced AS composite material has been developed, which has a huge market. [0004] There are many reasons for th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L33/20C08L25/12C08L51/06C08K13/04C08K7/14C08J9/12C08J3/22C08J5/04B29C47/92B29C48/92
CPCB29B7/46B29B7/72B29B7/7461B29B7/90B29B9/06B29B9/12B29B9/14B29C48/40B29C48/625B29C48/92B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895
Inventor 肖华明袁绍彦李欣陶四平宋晓东李晟张春怀李聪
Owner TIANJIN KINGFA NEW MATERIAL
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