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Polycarbonate injection molding grade toughening agent, toughened polycarbonate and preparation method of polycarbonate injection molding grade toughening agent

A technology of polycarbonate and toughening agent is applied in the field of polycarbonate injection molding grade toughening agent, toughened polycarbonate and polycarbonate injection molding grade toughening agent, which can solve the problem of expensive cost, large energy and waste. and other problems, to achieve the effect of improving compatibility, good toughening effect and good compatibility

Active Publication Date: 2012-07-04
SHENYANG KETONG PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004]The blending and granulation of toughening agent with PC by twin-screw extruder will be expensive and consume a lot of energy. Currently, there is a lack of PC direct injection toughening agent in the market

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0024] The preparation method of the toughening agent of the present invention comprises the following steps: (1) adding acrylate polymer, acrylate-grafted styrene elastomer, and antioxidant into a mixer, and mixing until uniform.

[0025] (2) Put the mixed material into the hopper of the twin-screw extruder, knead, plasticize and extrude through the twin-screw extruder.

[0026] (3) The material extruded through the head of the twin-screw extruder is made into pellets.

[0027] (4) Dry the particles.

[0028] The method for producing granules is water-cooled strand granulation, water ring granulation or underwater granulation.

[0029] The mixer adopts a high-speed mixer, the temperature of the mixing treatment temperature is room temperature, and the mixing time is 5 minutes.

[0030] The processing temperature of the twin-screw extruder is: 155°C-165°C in the first zone, 160-170°C in the second zone, 165-175°C in the third zone, 170-180°C in the fourth zone,...

Embodiment 1

[0032] Example 1: 30 parts of acrylic polymers, 70 parts of acrylate-grafted styrene copolymers, and 0.2 parts of antioxidant 1010 were added to the mixer and blended for 5 minutes, then put into a twin-screw extruder Extruder, the temperature of each section of the extruder is: 155℃~165℃ in the first zone, 160~170℃ in the second zone, 165~175℃ in the third zone, 170~180℃ in the fourth zone, 175~185℃ in the fifth zone, and 175~185℃ in the sixth zone. 175-185°C, 170-180°C in the seventh zone, 165-175°C in the eighth zone, 160-170°C in the ninth zone, 175-185°C in the head; the residence time in each zone is 5-6 seconds; the screw speed is 280-330rpm, the preparation Toughener.

Embodiment 2

[0033] Embodiment 2: 35 parts of acrylate polymers, 75 parts of acrylate grafted styrene copolymers, and 0.2 parts of antioxidant 1010 were added to the mixer and blended for 5 minutes, then dropped into the twin-screw extruder Extruder, the temperature of each section of the extruder is: 155℃~165℃ in the first zone, 160~170℃ in the second zone, 165~175℃ in the third zone, 170~180℃ in the fourth zone, 175~185℃ in the fifth zone, and 175~185℃ in the sixth zone. 175-185°C, 170-180°C in the seventh zone, 165-175°C in the eighth zone, 160-170°C in the ninth zone, 175-185°C in the head; the residence time in each zone is 5-6 seconds; the screw speed is 280-330rpm, the preparation Toughener.

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Abstract

The invention belongs to the technical field of high molecular materials, and provides a polycarbonate injection molding grade toughening agent with a good toughening effect and low cost and a preparation method thereof, and toughened polycarbonate added with the toughening agent. The polycarbonate injection molding grade toughening agent has the following compositions in parts by weight: 30-50 parts of acrylic ester polymer, 50-70 parts of acrylic ester-grafted styrene elastomer and 0.1-0.3 parts of antioxidant. The toughened polycarbonate has the following compositions in parts by weight: 5-10 parts of polycarbonate toughening agent and 90-95 parts of polycarbonate. The preparation method of the polycarbonate injection molding grade toughening agent comprises the following steps of: (1)adding the acrylic ester polymer, the acrylic ester-grafted styrene elastomer and the antioxidant into a mixer and mixing until the mixture is uniform; (2) throwing the mixed materials into a feed hopper of a double-screw extruder, and mixing, plasticizing and extruding through the double-screw extruder; (3) forming the extruded materials into particles; and (4) drying the particles.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a polycarbonate injection molding grade toughening agent, toughened polycarbonate and a preparation method of the polycarbonate injection molding grade toughening agent. Background technique [0002] Polycarbonate (PC) is a kind of tough thermoplastic resin, and it has been industrialized in the early 1960s, and realized large-scale industrial production in the late 1990s. It is the second largest engineering plastic in output after polyamide. It has excellent mechanical properties, but is sensitive to notch, and the notch toughness is limited to a certain extent. At present, the main methods used to toughen resins such as engineering plastics PC include high-grade rubber powder toughening, PC / ABS alloy, and acrylic polymer toughening. [0003] Acrylic polymers and PC have good localization and ability, which can be used for homopolymerization or cross poly...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L51/00C08L23/08C08L33/10C08L23/20B29B9/06B29C47/92B29C48/92
CPCB29C48/40
Inventor 吕通建
Owner SHENYANG KETONG PLASTIC
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