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Organic silicon toughening agent with anti-drip effects and synthetic method of toughening agent

A synthesis method and silicone technology, applied in the field of polymer additives, can solve the problems of easy aging, notch toughness limitation, notch sensitivity, etc., and achieve the effect of improving impact resistance.

Inactive Publication Date: 2019-03-08
铨盛聚碳科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has excellent mechanical properties, but is sensitive to notches, and the notch toughness is limited to a certain extent
At present, the toughening agents related to engineering plastics PC resins mainly include MBS resins, ACR resins, maleic anhydride graft copolymers (EVA-g-MAH), nano-inorganic particles, etc., but there are some problems, such as MBS resins The molecular structure contains butadiene, and its carbon-carbon double bond unsaturated structure makes it prone to aging when exposed to the air or under ultraviolet radiation, resulting in poor weather resistance of MBS resin
ACR resin has poor low temperature resistance and stain resistance, high water permeability and water absorption, and there is a phenomenon of "hot stickiness and cold brittleness"

Method used

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  • Organic silicon toughening agent with anti-drip effects and synthetic method of toughening agent

Examples

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Effect test

Embodiment 1

[0071] A kind of synthetic method of the organosilicon toughening agent with anti-dripping effect, comprises the steps:

[0072] A. Synthesis of organopolysiloxane core emulsion:

[0073] A1. Mix the organosiloxane monomer evenly, and use a homogenizer to shear at a high speed of 8000 rpm for 20 minutes to obtain a mixed solution;

[0074] A2. Add the mixed liquid to the aqueous solution in which the catalyst and emulsifier are dissolved, and react at 85°C for 12 hours to obtain an organopolysiloxane core emulsion; wherein, the total mass of the organosiloxane monomer is 40% of the water mass %, the amount of the catalyst is 1% of the mass of the organosiloxane monomer, and the amount of the emulsifier is 1% of the mass of the organosiloxane monomer;

[0075] B. Synthesis of silicone toughening agent with anti-dripping effect:

[0076] B1. Add organopolysiloxane core emulsion, PTFE emulsion, dispersant and distilled water into the reaction kettle together, and stir at high s...

Embodiment 2

[0107] A kind of synthetic method of the organosilicon toughening agent with anti-dripping effect, comprises the steps:

[0108] A. Synthesis of organopolysiloxane core emulsion:

[0109] A1. Mix the organosiloxane monomer evenly, and use a homogenizer to shear at a high speed of 9000 rpm for 15 minutes to obtain a mixed solution;

[0110] A2. Add the mixed solution to the aqueous solution dissolved with catalyst and emulsifier, and react at 88°C for 10 hours to obtain an organopolysiloxane core emulsion; wherein, the total mass of the organosiloxane monomer is 45% of the water mass %, the consumption of the catalyst is 2% of the mass of the organosiloxane monomer, and the consumption of the emulsifier is 5% of the mass of the organosiloxane monomer;

[0111] B. Synthesis of silicone toughening agent with anti-dripping effect:

[0112] B1. Add the organopolysiloxane core emulsion, PTFE emulsion, dispersant and distilled water into the reaction kettle together, and stir at a ...

Embodiment 3

[0143] A kind of synthetic method of the organosilicon toughening agent with anti-dripping effect, comprises the steps:

[0144] A. Synthesis of organopolysiloxane core emulsion:

[0145] A1. Mix the organosiloxane monomer evenly, and use a homogenizer to shear at a high speed of 10,000 rpm for 12 minutes to obtain a mixed solution;

[0146] A2. Add the mixed solution to the aqueous solution dissolved with catalyst and emulsifier, and react at 92°C for 9 hours to obtain an organopolysiloxane core emulsion; wherein, the total mass of the organosiloxane monomer is 50% of the water mass %, the consumption of the catalyst is 3% of the mass of the organosiloxane monomer, and the consumption of the emulsifier is 10% of the mass of the organosiloxane monomer;

[0147] B. Synthesis of silicone toughening agent with anti-dripping effect:

[0148] B1. Add the organopolysiloxane core emulsion, PTFE emulsion, dispersant and distilled water into the reaction kettle together, and stir at ...

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Abstract

The invention relates to the technical field of high-molecular additives, in particular to an organic silicon toughening agent with anti-drip effects and a synthetic method of the toughening agent. The synthetic method includes the steps: synthesizing organic polysiloxane nuclear emulsion; synthesizing the organic silicon toughening agent with the anti-drip effects. According to the synthetic method, organic silicon and PTFE (polytetrafluoroethylene) are polymerized and then sequentially wrapped with a soft monomer and a hard monomer, and the prepared organic silicon toughening agent improvesimpact strength of materials, has excellent drip resistance and is simple in process and low in cost.

Description

technical field [0001] The invention relates to the technical field of polymer additives, in particular to a silicone toughening agent with anti-dripping effect and a synthesis method thereof. Background technique [0002] Polycarbonate (PC) is a tough thermoplastic resin, which was industrialized in the early 1960s and large-scale industrialized 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 toughening agents related to engineering plastics PC resin mainly include MBS resin, ACR resin, maleic anhydride graft copolymer (EVA-g-MAH), nano-inorganic particles, etc., but there are some problems, such as MBS resin The molecular structure of MBS contains butadiene, and its carbon-carbon double bond unsaturated structure makes it prone to aging when exposed to air or ultraviolet radiation, ...

Claims

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Application Information

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IPC IPC(8): C08F285/00C08F218/08C08L69/00C08L77/12C08L83/06C08K9/04C08K7/14C08K3/26C08G77/442C08G69/44C08G77/38
CPCC08F285/00C08G69/44C08G77/38C08G77/442C08K2201/003C08K2201/004C08L69/00C08L2205/025C08L2205/035C08L2207/53C08F218/08C08L77/12C08L51/00C08L83/06C08K9/08C08K7/14C08K3/26
Inventor 王启瑶冯猛
Owner 铨盛聚碳科技股份有限公司
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