ABS (Acrylonitrile Butadiene Styrene) and PA (Polyamide) dewatering master batch and preparation method thereof

A technology of masterbatch and dehydrating agent, which is applied in the dehydration masterbatch of PA resin and its preparation, and in the field of ABS, which can solve the problems of unsatisfactory compatibility and inability to achieve dehydration effect, and achieve the effects of low cost, no energy consumption and convenient use

Active Publication Date: 2012-08-29
杭州嘉和材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when applied to very rigid plastics such as ABS or PA, it is easy to produce stratification and cause unsatisfactory compatibility, so that it cannot achieve a good dehydration effect.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Take 50kg of magnesium oxide with a particle size of 5um, 10kg of maleic anhydride with a particle size of 6um, 25kg of light calcium carbonate with a particle size of 2um, 2kg of silane coupling agent, and 0.5kg of rare earth coupling agent and add them to a 300L high-speed mixer, and stir at a high speed 30min, when the temperature rises to 95°C, add 1kg stearic acid, 2kg PE wax, 3kg solid wax, 0.5kg calcium stearate, 10kg EVA, 8kg PS and 4kg AS, continue stirring at high speed, when the temperature rises to 120°C Put the material into the trough for standby.

[0019] Use a 65-type twin-screw extruder with an aspect ratio of 1:44 at 130-175°C to extrude and pelletize the above-mentioned activated mixture to obtain ABS and PA dehydrated masterbatches.

Embodiment 2

[0021] Take 30kg of calcium oxide with a particle size of 4um, 25kg of zinc oxide with a particle size of 6um, 10kg of succinic anhydride with a particle size of 7um, 20kg of ground calcium carbonate with a particle size of 3um, 10kg of calcined kaolin with a particle size of 2um, and 2kg titanate Add the coupling agent and 1.5kg aluminate coupling agent together into a 300L high-speed mixer, and then add 2kg of stearic acid, 2.5kg of PP wax, 1kg of oleamide, and 1kg of No. 15 white oil when the temperature of the high-speed mixer rises to 90°C for 25 minutes , 10kg LLDPE, 5kg EVA, 5kg K glue and 1kg ABS. Continue to stir at high speed, and when the temperature rises to 125°C, put the material into the feed tank for subsequent use.

[0022] Use a 75-type twin-screw extruder with a length-to-diameter ratio of 1:48 to extrude and granulate the above-mentioned activated mixture at 125-165°C to obtain ABS and PA dehydrated masterbatches.

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Abstract

The invention provides an ABS (Acrylonitrile Butadiene Styrene) and PA (Polyamide) dewatering master batch and a preparation method thereof. The dewatering master batch mainly comprises a dewatering agent, an inorganic filler, a surfactant, a processing aid and carrier resin by a weight ratio of (50-80):(20-40):(1-5):(5-10):(15-30). The preparation method of the dewatering master batch comprises the following steps of: firstly, carrying out surface activation treatment on the dewatering agent and the inorganic filler in a high-speed stirrer by using the surfactant; then adding the processing aid and the carrier resin and uniformly mixing; and finally, granulating by using a double-screw extruder. The dewatering master batch prepared by the invention is convenient to use, has good dewatering effect and does not influence the appearance and the mechanical strength of ABS and PA products.

Description

technical field [0001] The invention relates to a dehydrating material used in the field of plastic molding processing, in particular to a dehydrating masterbatch used for ABS and PA resins and a preparation method thereof. Background technique [0002] There are many plastic products that must be fully dehydrated and dried on the resin used before molding. For example, ABS needs to be dried at a temperature of 90-100°C for more than one hour, and PA needs to be dried at a temperature of 110-120°C for 1.5-2 hours. Because these resins contain polar genes in their molecules, they can easily absorb moisture in the air. Without dehydration and drying, it not only affects the surface brightness of the product, but more importantly, water can decompose the resin during processing and lose its proper mechanical strength. At present, in the industry, the method of drying and dehydrating the above-mentioned resin mainly adopts a physical method, that is, an electric heating vacuum d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08L23/12C08L23/08C08L55/02C08L77/00C08L27/06C08L25/12C08L25/10C08K13/02C08K3/22C08K5/092C08K3/26B29B9/06B29C47/92B29C48/40B29C48/92
CPCB29C48/92B29C2948/92704B29C48/04B29C48/40B29C2948/92895
Inventor 王锡臣黄期翾黄向阳
Owner 杭州嘉和材料科技有限公司
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