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Preparation process of microencapsulated flame-retardant ABS (Acrylonitrile Butadiene Styrene)/PC (Poly Carbonate) alloy

A micro-encapsulation and micro-encapsulation technology is applied in the field of preparation of flame-retardant ABS/PC alloys, which can solve the problems of high flame-retardant efficiency and difficult migration.

Inactive Publication Date: 2013-02-20
QINGDAO TIANREN ENVIRONMENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to prepare a microencapsulated flame-retardant ABS / PC alloy, which has good thermal stability, good melt fluidity during processing, high flame-retardant efficiency, and is not easy to absorb moisture and migrate. The product has high dimensional stability and can be used in injection molding to manufacture electrical casings, automotive dashboards, air blowers, battery packs, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A method for preparing microencapsulated flame-retardant ABS / PC alloy, comprising the following steps:

[0026] a Put the following components by mass into the stirring tank and mix for 5-10 minutes: ammonium polyphosphate 51, char forming agent 20, synergist 1;

[0027] b. Spray the atomized polyorganosiloxane diluent into the stirred tank for 5-10 minutes, and let it stand for 10 minutes after the stirring is completed to form a microcapsule flame retardant;

[0028] c Add ABS and PC pellets and stir well to make the microcapsule flame retardant adhere to the ABS and PC pellets, then discharge and dry.

[0029] The above-mentioned ammonium polyphosphate is type II APP with a degree of polymerization n=2000; the above-mentioned char-forming agent is pentaerythritol; the above-mentioned synergist is nano-scale zinc oxide with a particle diameter below 100nm; the above-mentioned polyorganosiloxane is polydimethyl Siloxane, whose added amount accounts for 6%-8% of the to...

Embodiment 2

[0034] Repeat Example 1, the difference is that the mass parts of each component of the microcapsule flame retardant are ammonium polyphosphate 55, char-forming agent 25, synergist 3; also add phenylboronic acid compound in step c; the described The char-forming agent is dipentaerythritol; the synergist is nano-scale silicon dioxide with a particle size below 100nm; the polyorganosiloxane is polyaminosiloxane, which is dissolved in absolute ethanol.

[0035] The microencapsulated flame-retardant ABS / PC alloy contains the following components and mass percentages:

[0036] Acrylonitrile-butadiene-styrene (ABS) 70%

[0037] Polycarbonate (PC) 13%

[0038] Microcapsule flame retardant 14%

[0039] Phenylboronic acid compound 3%.

Embodiment 3

[0041] Repeat Example 1, the difference is that the mass parts of each component of the microcapsule flame retardant are ammonium polyphosphate 53, char-forming agent 23, synergist 2; also add nanometer montmorillonite in step c; The char-forming agent is starch; the synergist is nano-scale titanium dioxide with a particle diameter below 100nm; the polyorganosiloxane is polysilicone resin, which is dissolved in absolute ethanol.

[0042] The microencapsulated flame-retardant ABS / PC alloy contains the following components and mass percentages:

[0043] Acrylonitrile-butadiene-styrene (ABS) 25%

[0044] Polycarbonate (PC) 60%

[0045] Microcapsule flame retardant 12%

[0046] Nano montmorillonite 3%.

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Abstract

The invention provides a preparation process of microencapsulated flame-retardant ABS (Acrylonitrile Butadiene Styrene) / PC (Poly Carbonate) alloy. The preparation method comprises the following steps: a, feeding the following components by mass into a stirring kettle to mix and stir for 5 to 10 minutes: 51 to 55 parts of ammonium polyphosphate, 20 to 25 parts of carbonizing agent, and 1 to 3 parts of synergistic interaction agent; b, spraying atomized polysiloxane diluent into the stirring kettle for 5 to 10 minutes, and standing for 10 minutes after the stirring, so as to obtain microencapsulated fire retardant; and c, adding ABS and PC particles, and fully stirring to adhere the microencapsulated fire retardant on the ABS and PC particles, and then discharging and drying to obtain the finished product.

Description

technical field [0001] The invention relates to a preparation method of a flame-retardant ABS / PC alloy, and furthermore, relates to a preparation method of a microencapsulated flame-retardant ABS / PC alloy. Background technique [0002] ABS resin is a terpolymer of acrylonitrile (A), butadiene (B) and styrene (S). Combining the superior properties of the three components, it has high impact strength, good processing performance and chemical It is stable, easy to mold, and the product is glossy and tough. It is a general-purpose thermoplastic engineering plastic with superior performance. Polycarbonate (PC) resin is a thermoplastic engineering plastic with excellent performance. It has outstanding impact resistance, good creep resistance and dimensional stability, heat resistance, low water absorption, non-toxicity, and excellent dielectric properties. ABS resin and PC resin have good compatibility, combining the advantages of both to prepare ABS / PC alloy is widely used in th...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L55/02C08K9/10C08K3/34C08K3/32C08K5/55
Inventor 曹曼郭冰瑜刘林
Owner QINGDAO TIANREN ENVIRONMENT
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