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Impact-resistant polystyrene resin composition and preparation method thereof

A technology of impact-resistant polystyrene and resin composition, applied in the field of impact-resistant polystyrene resin composition and preparation thereof, can solve the problems of unsatisfactory distribution of rubber particles, limited PS toughening effect, etc., and achieves easy realization and promotion , The effect of easy control of process conditions, material strength and rigidity retention

Active Publication Date: 2014-08-06
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As we all know, the blending method to toughen PS, the key to affecting the toughening effect is the dispersion of rubber particles in the PS matrix, and the pure rubber or elastomer is blended with PS, the distribution of rubber particles in the PS matrix is ​​not ideal, PS Limited toughening effect

Method used

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  • Impact-resistant polystyrene resin composition and preparation method thereof
  • Impact-resistant polystyrene resin composition and preparation method thereof
  • Impact-resistant polystyrene resin composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] (1) Preparation of modified powdered styrene-butadiene rubber: Add 0.01kg of water and 0.02kg of carboxylated styrene-butadiene latex into a 15L coagulation kettle, feed low-pressure steam, heat the slurry to 55°C and mix for 3 minutes; add 1g of release agent and mix 3min, then mixed with 0.2kg powdered styrene-butadiene rubber 1500a for 40mins; discharged, dehydrated, and dried at 50°C for 24hrs to obtain modified powdered styrene-butadiene rubber.

[0056] (2) Preparation of functionalized kaolin: 3 kg of water and 1 kg of kaolin were made into a slurry and added to a 15 L coagulation kettle and mixed for 2 minutes; under stirring conditions, 15 g of titanate coupling agent NDZ-101 was added and mixed for 8 minutes, and then 0.2 kg of carboxyl Nitrile latex was mixed for 25 minutes; finally, 10 g of release agent was added and mixed for 5 minutes, discharged, dehydrated, and dried at 70-80° C. for 10 hours to obtain functionalized kaolin a.

[0057] (3) Preparation o...

Embodiment 2

[0060] (1) Preparation of modified powdered styrene-butadiene rubber: Add 0.01kg of water and 0.03kg of carboxylated styrene-butadiene latex into a 15L coagulation kettle, feed low-pressure steam, heat the slurry to 55°C and mix for 3 minutes; add 1.5g of release agent Mix for 3 minutes, then mix with 0.4kg powdered styrene-butadiene rubber 1500a for 40 minutes; discharge, dehydrate, and dry at 50°C for 24 hours to obtain modified powdered styrene-butadiene rubber.

[0061] (2) Preparation of functionalized kaolin: Add 1.5kg of water and 1kg of kaolin to make slurry into a 15L coagulation kettle and mix for 2 minutes; add 15g of titanate coupling agent NDZ-101 under stirring conditions and mix for 8 minutes, then add 0.23kg Carboxylated styrene-butadiene latex was mixed for 25 minutes; finally, 13 g of release agent was added and mixed for 5 minutes, discharged, dehydrated, and dried at 70-80° C. for 10 hours to obtain functionalized kaolin b.

[0062] (3) preparation of graft...

Embodiment 3

[0065] (1) Preparation of modified powdered styrene-butadiene rubber: Add 0.01kg of water and 0.08kg of carboxylated styrene-butadiene latex into a 15L coagulation kettle, feed low-pressure steam, heat the slurry to 55°C and mix for 3 minutes; add 1g of release agent and mix 3min, and then mixed with 0.6kg powdered styrene-butadiene rubber 1500a for 40mins; discharged, dehydrated, and dried at 50°C for 24hrs to obtain modified powdered styrene-butadiene rubber.

[0066] (2) Preparation of functionalized kaolin: with embodiment 1

[0067] (3) Preparation of grafted polystyrene: put 35g of acetone and 7g of DCP into a beaker and mix, then put the mixed liquid together with 1kg of polystyrene (492J) and 90g of methacrylic acid (MAA) into a 10L high-speed In the mixer, mix at a high speed for 4 minutes, put the mixed material into the Φ34 twin-screw extruder, carry out extrusion grafting reaction at a reaction temperature of 170-190 ° C, and a reaction time of 9 minutes, cool and ...

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Abstract

The invention discloses an impact-resistant polystyrene resin composition, which comprises the following components in percentage by weight: 1) 100 percent of polystyrene, 2) 10 to 40 percent of powdered butadiene styrene rubber, 3) 0.5 to 5 percent of carboxylated styrene butadiene rubber latex, 4) 5 to 15 percent of grafted polystyrene and 5) 0 to 35 percent of functionalized inorganic filler, wherein the functionalized inorganic filler is obtained by processing a filler through a coupling agent and carboxylated rubber latex. Compared with polystyrene basic resin, the composition has the advantages that the toughness is improved by more than 5 times, the strength and rigidity of materials are kept or improved to a maximum limit, and engineering materials such as acrylonitrile butadiene styrene (ABS) and the like can be replaced widely; and the impact-resistant polystyrene resin composition is used for manufacturing large-scale thin-wall products. The invention also discloses a method for preparing the impact-resistant polystyrene resin composition.

Description

technical field [0001] The invention relates to an impact-resistant polystyrene resin composition and a preparation method thereof, in particular to a powder rubber-modified polystyrene resin composition and a preparation method thereof. Background technique [0002] Polystyrene (PS) has the advantages of excellent formability, good transparency, high rigidity, good electrical insulation performance, easy dyeing, low hygroscopicity and low price. It is widely used in packaging, electronics, construction, automobiles, home appliances, instruments, daily necessities and toys. It has been widely used in other industries and has become one of the fastest-growing varieties of general-purpose synthetic resins. However, because the side group of PS is a benzene ring, its lack of mechanical properties, such as poor toughness and low strength, especially the brittle behavior, limits its application to a large extent. Therefore, people generally pay attention to the research on tough...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L25/06C08L51/04C08L9/06C08L13/02C08L51/06C08K13/06C08K9/04C08K3/34B29B9/06B29C47/92B29C48/92
CPCB29C47/92B29C48/04B29C48/92B29C2948/92561B29C2948/92704B29C2948/92895
Inventor 徐典宏李晶梁滔龚光碧高阳光何连成胡海华郑聚成艾纯金魏绪玲朱晶马朋高
Owner PETROCHINA CO LTD