In-situ polymerization ABS modified nylon composite material

An in-situ polymerization and composite material technology, which is applied in the field of in-situ polymerization ABS modified nylon composite materials, can solve the problem that the water absorption and mechanical properties of PA6/ABS alloys cannot be improved at the same time, and achieve enhanced adhesion and reduced size , The effect of improving dispersion

Inactive Publication Date: 2010-08-11
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to overcome the disadvantage that the water absorption and mechanical properties of the PA6 / ABS alloy produced by the prior art cannot be improved at the same time, the present invention proposes a preparation method of in-situ polymerized ABS modified nylon composite material. The ABS modified nylon produced by this method Nylon composite material has both good water absorption performance and excellent mechanical properties

Method used

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  • In-situ polymerization ABS modified nylon composite material
  • In-situ polymerization ABS modified nylon composite material
  • In-situ polymerization ABS modified nylon composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A kind of preparation method of in-situ polymerized ABS modified nylon composite material, the steps are:

[0020] Lay carbon fiber in the mold at a volume ratio of 50% to 85%, which can be 50%, 68% or 85%, preheat at 140°C to 180°C at 140°C, 162°C or 180°C, and preheat to 90°C ℃~120℃ can be 90℃, 112℃ or 120℃ nitrile rubber, ABS resin, sodium hydroxide, N,N'-bis-(3-(3,5-di-tert-butyl-4-hydroxybenzene Base) propionyl) hexamethylene diamine, (2,4-di-tert-butylphenyl) phosphite triester and caprolactam by mass percentage are nitrile rubber: ABS resin: sodium hydroxide: N, N'-bis-( 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionyl)hexamethylenediamine:(2,4-di-tert-butylphenyl)phosphite triester:caprolactam=5%~15%:5 % ~ 20%: 0.1% ~ 0.2%: 0.1% ~ 0.5%: 0.1% ~ 0.5%: 100% mixed and injected into the mold, the reaction pressure is 1 atmosphere, and the number average molecular weight of nitrile rubber is 4000 ~ 4400 , the viscosity of the whole system was controlled to 0.02-1Pa.s,...

Embodiment 2

[0022] The steps are the same as in Example 1, wherein the number-average molecular weight of the selected nitrile rubber is 4000 to 4400, and the nitrile rubber accounts for 5%, 10%, and 15% by weight of the monomer, respectively, and the viscosity of the system after being incorporated into the monomer is respectively 0.2 Pa.s, 0.6Pa.s, 1Pa.s, the impregnated fiber is good. The NaOH content accounts for 0.1% and 0.2% of the monomer respectively. The main antioxidant (1098) was 0.1%, 0.25%, 0.5%, and the auxiliary antioxidant (168) was 0.1%, 0.25%, 0.5%, respectively. Using carbon fiber as a reinforcement, determine the hot press molding process, choose 50%, 70%, 85% volume ratio respectively, lay the fiber in the mold and preheat, the temperature is 140 ° C, 160 ° C, 180 ° C respectively. Different monomer formulations were selected and mixed at 90°C and injected into the mold for in-situ polymerization to prepare FRP sheets.

Embodiment 3

[0024] Lay carbon fiber in the mold at a volume ratio of 50% to 85%, which can be 50%, 68% or 85%, and preheat at 140°C, 162°C or 180°C at 140°C to 180°C, and preheat to 90°C ~120°C can be sodium hydroxide at 90°C, 112°C or 120°C, HDI biuret N-75 activator, N,N'-bis-(3-(3,5-di-tert-butyl-4- Hydroxyphenyl) propionyl) hexamethylene diamine, (2,4-di-tert-butylphenyl) phosphite triester and caprolactam are sodium hydroxide by mass percentage: HDI biuret N-75 activator: N, N '-bis-(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionyl)hexamethylenediamine: (2,4-di-tert-butylphenyl)phosphite triester:caprolactam=0.1% ~0.2%: 0.5% ~ 1.5%: 0.1% ~ 0.5%: 0.1% ~ 0.5%: 100% mixed and injected into the mold, the reaction pressure is 1 atmosphere, the viscosity of the whole system is controlled to 0.02 ~ 0.1Pa.s, in situ After 30 minutes of polymerization reaction, a sheet of in-situ polymerized nylon composite material was prepared.

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Abstract

The invention discloses a preparation method of in-situ polymerization ABS modified nylon composite material, which belongs to the preparation field of the composite material used for the strengthening of the concrete structure. The invention comprises the following steps: according to the 50-85 percent of volume ratio, carbon fiber is laid in the die and preheated, when the temperature is at 140-180 DEG C, nitrile rubber HTBN, ABS resin, sodium hydroxide, primary antioxidant, secondary antioxidant and caprolactam which are preheated to 90-120 DEG C are mixed according to the mass percent that nitrile rubber: ABS resin: sodium hydroxide: primary antioxidant: secondary antioxidant: caprolactam is equal to 5-15 percent: 5-20 percent: 0.1-0.2 percent: 0.1-0.5 percent: 0.1-0.5 percent: 100 percent, and then is filled into the die, the reaction pressure is equal to 0.1 MPa, wherein, the average number molecular weight of the nitrile rubber is 4000-4400, the viscosity for controlling the whole system is equal to 0.02-1 Pa.s, and after in-situ polymerization reaction for 30 minutes, the sheet material of the in-situ polymerization ABS modified nylon composite material is prepared and obtained.

Description

technical field [0001] The invention relates to the field of preparation of nylon modified materials, in particular to an in-situ polymerized ABS modified nylon composite material. Background technique [0002] At present, there are many nylon modified alloys, and the method of adding reactive compatibilizers to the blend system is often used to increase the compatibility between polymers. PA6 and ABS have irreplaceable excellent mechanical and low-temperature toughness, water resistance and thermal deformation properties respectively. However, the incompatibility of the two phases leads to poor mechanical properties of the PA6 / ABS alloy without compatibilization, so that the advantages of the two cannot be effectively combined. Majumda et al. used sulfimidated acrylic acid polymer (IA) as compatibilizer to compatibilize PA6 / ABS system, and Xie Jingwei et al. used styrene-maleic anhydride copolymer (SMA) to compatibilize PA6 / ABS system. A good expansion effect. The method...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/02C08K5/20C08K5/526C08K7/06C08G69/16B29C70/34B29C70/54C08L55/02C08L9/02
Inventor 钱春香赵洪凯
Owner SOUTHEAST UNIV
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