Modified ABS special material and preparation method thereof

A special material and modification technology, which is applied in the field of ABS special material and its preparation, can solve problems such as difficulty in uniform dispersion, low ABS processing fluidity, and air quality impact, so as to overcome poor air quality, promote industrial application, and process flow sex enhancing effect

Inactive Publication Date: 2012-05-02
CHONGQING UNIV OF ARTS & SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (2) Because ABS has a certain volatility, commonly used ABS products often produce certain volatiles during use, which will produce certain emissions on the surface of the parts, which will affect the use of the parts, and also produce certain unpleasant smells , have adverse effects on the air, especially the air quality of some indoor spaces, and cause certain damage to the health of users and environmental protection, which greatly limits the development and wide application of ABS. Therefore, as people pay attention to environmental protection And the requirements for physical and mental health are getting higher and higher, so it is very important to develop low-odor ABS special materials
[0006] (3) The processing fluidity of some grades of ABS is still low, such as Chimei ABS-PA757, whose melt index MI (g / 10min, 260°C, 2.16kg) value is only 8.8, the processing fluidity is low, and it is not easy for injection molding
[0007] (4) Although the use of inorganic fillers to modify ABS can reduce costs, it will be at the cost of losing the mechanical properties of the material to a certain extent, and the smaller the particle size of the fillers, the more difficult it is to achieve uniform dispersion, and more Auxiliaries and better processing equipment, higher processing costs

Method used

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  • Modified ABS special material and preparation method thereof
  • Modified ABS special material and preparation method thereof
  • Modified ABS special material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] First weigh the raw materials (expressed in weight fractions) in the following proportions:

[0032]

[0033] ABS: The ABS T100 product produced by Toray Corporation of Japan. The ABS material is hygroscopic and requires drying before processing. Drying conditions are at least 2 hours at 80-90°C.

[0034] MCM-41 ordered mesoporous material: a product produced by Nanjing Xianfeng Nano Material Technology Co., Ltd., which is an ordered mesoporous material with hexagonal ordered pore structure and long-range order. Its pore diameter is 3.5nm and its BET specific surface area is ≥ 900m 2 / g, pore volume ≥ 0.6cm 3 / g.

[0035] Put the above raw materials into a high-speed mixer and mix fully, the mixing speed is 150-300 rpm, and the mixing time is 3-10 minutes; (3) Put the mixture obtained in step (2) into a twin-screw extruder to produce grain. The length-to-diameter ratio of the twin-screw extruder is 40:1, the screw speed is 150-700 rpm, and the working temperatur...

Embodiment 2

[0045] First weigh the raw materials (expressed in weight fractions) in the following proportions:

[0046]

[0047] MCM-48 ordered mesoporous material: a product produced by Nanjing Xianfeng Nano Material Technology Co., Ltd., which has a uniform pore size of about 2.6nm and two sets of independent three-dimensional spiral channel network structures. BET specific surface area ≥ 750m 2 / g, pore volume ≥ 0.6cm 3 / g.

[0048] Put the above raw materials into a high-speed mixer and mix fully, the mixing speed is 150-300 rpm, and the mixing time is 3-10 minutes; (3) Put the mixture obtained in step (2) into a twin-screw extruder to produce grain. The length-to-diameter ratio of the twin-screw extruder is 40:1, the screw speed is 150-700 rpm, and the working temperature of the twin-screw extrusion is 130-260°C in the first zone, 140-270°C in the second zone, and 140-270°C in the third zone. Zone 150-280°C, Zone 4 150-280°C, Zone 5 150-280°C, Zone 6 150-280°C, Zone 7 150-280°...

Embodiment 3

[0053] First weigh the raw materials (expressed in weight fractions) in the following proportions:

[0054]

[0055] SBA-15 ordered mesoporous material: a product produced by Nanjing Xianfeng Nano Material Technology Co., Ltd., which is a mesoporous silicon-based molecular sieve with a two-dimensional hexagonal structure synthesized under acidic conditions, with a pore size of 6-10nm and a BET specific surface area of ​​≥650m 2 / g, pore volume ≥ 1.2cm 3 / g. Compared with MCM-41, SBA-15 ordered mesoporous material has larger pore diameter, thicker pore wall and higher pore volume, and has better hydrothermal stability.

[0056] Put the above raw materials into a high-speed mixer and mix fully, the mixing speed is 150-300 rpm, and the mixing time is 3-10 minutes; (3) Put the mixture obtained in step (2) into a twin-screw extruder to produce grain. The length-to-diameter ratio of the twin-screw extruder is 40:1, the screw speed is 150-700 rpm, and the working temperature of...

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Abstract

The invention provides a modified ABS (Acrylonitrile butadiene styrene) special material and a preparation method thereof; the ABS special material comprises the following components: 70-95wt% of ABS, 1.5-8wt% of compatilizer, 1.5-8wt% of flexibilizer, 0.2-0.6wt% of antioxidant, 0.1-0.5wt% of lubricant, and 1.5-15wt% of ordered mesoporous material, wherein the ordered mesoporous material is MCM-41, MCM-48, SBA-15 or SBA-16; the preparation method comprises the following steps of: weighing ingredients with certain proportions, putting into a high speed mixer and mixing fully, and then extruding and granulating by a double-screw extruder. The modified ABS special material and the preparation method thereof provided by the invention effectively improve MI (Moment of Inertia) value of the ABS and processing fluidity of the ABS as well as mechanical intensity; in addition, the modified ABS special material has the characteristic of low odour, and also has excellent comprehensive performances such as light weight, sound absorption, etc.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a special material for ABS and a preparation method thereof. Background technique [0002] ABS (acrylonitrile-styrene-butadiene copolymer) resin is a polymer material with large demand and rapid development between engineering plastics and general-purpose plastics. ABS resin combines the rigidity of acrylonitrile, the toughness of butadiene and the ease of processing of styrene. It has excellent comprehensive physical and mechanical properties and is widely used in electronics, electrical appliances, automobiles, textile equipment, construction and daily necessities. [0003] In recent years, with the high performance of electronic appliances, automobiles and light industrial products, new requirements have been put forward for the performance of ABS. In order to meet the requirements of users, facilitate users and open up new application fields, various production and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L55/02C08K13/04C08K7/22B29B9/06B29C47/92B29C48/92
CPCB29C48/04B29C48/40B29C48/625B29C48/875B29C48/92B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895
Inventor 刘玉荣
Owner CHONGQING UNIV OF ARTS & SCI
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