Radiation crosslinking halogen-free flame retardant ABS/PC (acrylonitrile butadiene styrene/ polycarbonate) composite material and preparation method thereof

A composite material and radiation cross-linking technology, which is applied in the field of radiation cross-linked halogen-free flame retardant ABS/PC composite material and its preparation, and can solve the problem that the ABS/PC composite cannot be used in automobiles, the heat resistance is not high enough, and it is easy to age. And other issues

Active Publication Date: 2015-03-25
HUBEI HUACHENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the heat resistance of the ABS/PC compound is not high enough to be used in automobiles and heat-

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0027] A radiation-crosslinked halogen-free flame-retardant ABS / PC composite material and a preparation method thereof, comprising the following steps:

[0028] The first step: Activation treatment of ultrafine talcum powder:

[0029] Dry 80-100Kg talcum powder (3500 mesh) in a desiccator for 3 hours at a drying temperature of 70-80°C. After drying, cool to room temperature naturally, then add the talc powder into the high-speed mixer, start the mixer, and then add 2 - 3Kg aluminate coupling agent, stirred at high speed for 2-3 minutes to obtain activated talcum powder.

[0030] Step 2: Mixing of ingredients

[0031] 70-100KgABS resin, 20-30KgPC resin, 2-3Kg styrene-maleic anhydride copolymer (SMA), 2-3Kg methyl methacrylate-butadiene-styrene copolymer (MBS), 1-2Kg Initiator TMPTMA (trimethylolpropane trimethacrylate), 3-6Kg triphenyl phosphate (TPP), 3-6Kg ammonium polyphosphate (APP), 5-8Kg zinc borate, 5-8Kg resorcinol Add bis(diphenyl phosphate) (RDP), 3-5Kg methyl viny...

Embodiment 1

[0034] Embodiment 1: A kind of radiation cross-linking halogen-free flame-retardant ABS / PC composite material and its preparation method, the preparation method comprises the following steps in sequence:

[0035] The first step: Activation treatment of ultrafine talcum powder:

[0036] Dry 80Kg of talc powder (3500 mesh) in a desiccator for 3 hours at a drying temperature of 70-80°C. After drying, cool to room temperature naturally, then add the talc powder into the high-speed mixer, start the mixer, and then add 1Kg of aluminum acid Ester coupling agent, high-speed stirring for 2-3 minutes to obtain activated talcum powder.

[0037] Step 2: Mixing of ingredients

[0038] 70KgABS resin, 20KgPC resin, 2Kg styrene-maleic anhydride copolymer (SMA), 2Kg methyl methacrylate-butadiene-styrene copolymer (MBS), 1Kg TMPTMA, 3Kg triphenyl phosphate (TPP) , 3Kg ammonium polyphosphate (APP), 5Kg zinc borate, 5Kg resorcinol bis(diphenyl phosphate) (RDP), 3Kg methyl vinyl silicone rubber,...

Embodiment 2

[0044] With embodiment 1, difference is:

[0045] The first step: 100Kg talcum powder, 3Kg aluminate coupling agent.

[0046] The second step: 100KgABS resin, 30KgPC resin, 3Kg styrene-maleic anhydride copolymer (SMA), 3Kg methyl methacrylate-butadiene-styrene copolymer (MBS), 2Kg initiator TMPTMA, 6Kg triphosphate Phenyl ester (TPP), 6Kg ammonium polyphosphate (APP), 8Kg zinc borate, 8Kg resorcinol bis(diphenyl phosphate) (RDP), 5Kg methyl vinyl silicone rubber, 3Kg No. 10 white oil, 8Kg activation talcum powder.

[0047] Implementation effect and comparative data

[0048] 1. Tensile strength (before / after implementation) 48.9 / 58.1MPa, 2. Elongation at break (before / after implementation) 68 / 30%, 3. Bending strength (before / after implementation) 72.9 / 88MPa, 4. Izod impact strength (notch) (before / after implementation) 23.9 / 31.6KJ / ㎡, 5. Heat distortion temperature (before / after implementation) 89 / 121℃, 6. Rockwell hardness (R) (before implementation / after implementation) 1...

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Abstract

The invention relates to a radiation crosslinking halogen-free flame retardant ABS/PC (acrylonitrile butadiene styrene/ polycarbonate) composite material and a preparation method thereof. An electronic accelerator can be adopted to perform crosslinking modification on the ABS/PC composite material, and defects of poor heat resistance, liquidity and rigidity of a conventional ABS/PC composite material and the defect that the ABS/PC composite material cannot be used for an automobile, a heat-resisting electronic and electrical apparatus element and a large-size injection molding part are mainly overcome. The radiation crosslinking halogen-free flame retardant ABS/PC composite material is provided, the heat resistance limit is broken through, the heat resisting temperature is increased, meanwhile, the rigidity of the material is improved, the supporting strength of a thin-walled workpiece is ensured, and the market demand is met. A product mainly comprises raw materials of ABS resin, PC, styrene-maleic anhydride copolymer, methyl methacrylate-butadiene-styrene copolymer, trimethylolpropane trimethacrylate, triphenyl phosphate, ammonium polyphosphate, zinc borate, resorcinol bis(diphenyl phosphate), methyl vinyl silicone rubber and the like.

Description

technical field [0001] The invention relates to a radiation-crosslinked halogen-free flame-retardant ABS / PC composite material and a preparation method thereof. Background technique [0002] Acrylonitrile / butadiene / styrene copolymer ABS has good toughness and good molding processability, but insufficient rigidity and low impact strength; polycarbonate (PC) is characterized by high rigidity, high impact strength, but poor toughness, Poor processing fluidity, easy to crack; ABS and polycarbonate resin are blended to obtain an ABS / PC composite material, which can find a balance point between rigidity and toughness to make it complementary in performance. The composite material can have PC and ABS. excellent performance. However, the heat resistance of the ABS / PC compound is not high enough to be used in automobiles and heat-resistant electronic and electrical components. It is easy to age during use and has a short service life. Therefore, it is necessary to modify the heat r...

Claims

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Application Information

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IPC IPC(8): C08L55/02C08L69/00C08L35/06C08L51/04C08L83/07C08K13/06C08K9/04C08K3/34C08K5/523C08K3/32C08K3/38C08K5/103B29C47/92B29C48/92
Inventor 林华明
Owner HUBEI HUACHENG TECH
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