Carbon fiber reinforced polyester mineral composite material and preparation method thereof

Abstract

The invention discloses a carbon fiber reinforced polyester mineral composite material and a preparation method thereof, which belong to the technical filed of composite materials. The carbon fiber reinforced polyester mineral composite material comprises an adhesive substrate, an aggregate and carbon fiber, and is prepared by the steps of evenly mixing the adhesive substrate, the aggregate and the a carbon fiber, casting and curing the mixture, and the like, wherein the mass fraction of the adhesive substrate is 9 to 20 percent; the mass fraction of the aggregate is 79 to 90 percent; and the mass fraction of the carbon fiber is 0.1 to 1 percent. The composite material has excellent damping property and physical and mechanical properties, improves the compressive strength by 22 to 37 percent compared with a polyester mineral material without reinforced fiber, improves the damping ratio by 4.5 to 15 percent, and can be used as an excellent mechanical basic element material.

Description

Technical field:

[0001] The invention relates to a composite material and a preparation method thereof, in particular to a carbon fiber reinforced polyester mineral composite material and a preparation method thereof, and belongs to the technical field of composite materials. Background technique:

[0002] The development of modern science and technology has higher and higher requirements for machining efficiency, precision and quality. High speed and high precision have become the two major development trends of modern machining technology. It is required to shorten the processing time and auxiliary time, and increase the metal removal rate and cutting amount. . The increase of cutting amount is easy to cause vibration in the process of machining, so the machine tool system is required to have better dynamic and static performance, thermal stability, high damping and other performance. The main way to solve the vibration problem is to optimize the machine tool structure an...

Examples

preparation example Construction

[0024] The preparation method of carbon fiber reinforced polyester mineral composite material comprises the following steps (as figure 2 ):

[0025] a) Sieve the granite particles or sandstone particles and divide them into 6 grades according to the particle size range: 0.1mm~0.6mm, 0.6mm~2mm, 2mm~3.5mm, 3.5mm~5mm, 5mm~7mm, 7mm~10mm , clean and dry granular aggregates of different particle size levels, and then weigh them according to a certain mass ratio according to different particle size levels and mix them evenly; b) weigh carbon fibers, and use composite treatment to process carbon fibers. Heating to 400°C in medium temperature and keeping it warm for 8 hours, and then soaking with silane coupling agent; c) Weighing liquid synthetic resin, diluent, toughening agent and curing agent and mixing them into a uniform resin system, which will be surface treated Add the carbon fiber into the uniformly mixed resin system, and stir to make it evenly distributed; d) Add the unif...

Embodiment 1

[0027] Aggregate: 8000g of natural granite particles, of which:

[0028] 0.1mm~0.6mm: 1040g, accounting for 13%

[0029] 0.6mm~2mm: 1360g, accounting for 17%

[0030] 2mm~3.5mm: 1200g, accounting for 15%

[0031] 3.5mm~5mm: 1120g, accounting for 14%

[0032] 5mm~7mm: 1360g, accounting for 17%

[0033] 7mm~10mm: 1920g, accounting for 24%

[0034] Adhesive matrix 975g, wherein:

[0035] Epoxy resin 660g

[0036] Curing agent ethylenediamine 200g

[0037] Thinner acetone 55g

[0038] Toughener dibutyl phthalate 60g

[0039] Carbon fiber 25g

[0040] The obtained carbon fiber reinforced polyester mineral composite material: the compressive strength is 119.35MPa, and the damping ratio is 0.192.

Embodiment 2

[0042] Aggregate: 50kg of natural granite particles, of which:

[0043] 0.1mm~0.6mm: 7kg, accounting for 14%

[0044] 0.6mm~2mm: 8kg, accounting for 16%

[0045] 2mm~3.5mm: 7.5kg, accounting for 15%

[0046] 3.5mm~5mm: 7kg, accounting for 14%

[0047] 5mm~7mm: 9kg, accounting for 18%

[0048] 7mm~10mm: 11.5kg, accounting for 23%

[0049] Adhesive matrix 7.8kg, of which:

[0050] Epoxy resin 5.5kg

[0051] Curing agent ethylenediamine 1.6kg

[0052] Thinner acetone 0.3kg

[0053] Toughening agent dibutyl phthalate 0.4kg

[0054] Carbon fiber 0.2kg

[0055] The obtained carbon fiber reinforced polyester mineral composite material: the compressive strength is 108.51MPa, and the damping ratio is 0.189.

Technical field:

[0001] The invention relates to a composite material and a preparation method thereof, in particular to a carbon fiber reinforced polyester mineral composite material and a preparation method thereof, and belongs to the technical field of composite materials. Background technique:

[0002] The development of modern science and technology has higher and higher requirements for machining efficiency, precision and quality. High speed and high precision have become the two major development trends of modern machining technology. It is required to shorten the processing time and auxiliary time, and increase the metal removal rate and cutting amount. . The increase of cutting amount is easy to cause vibration in the process of machining, so the machine tool system is required to have better dynamic and static performance, thermal stability, high damping and other performance. The main way to solve the vibration problem is to optimize the machine tool structure an...

Examples

preparation example Construction

[0024] The preparation method of carbon fiber reinforced polyester mineral composite material comprises the following steps (as figure 2 ):

[0025] a) Sieve the granite particles or sandstone particles and divide them into 6 grades according to the particle size range: 0.1mm~0.6mm, 0.6mm~2mm, 2mm~3.5mm, 3.5mm~5mm, 5mm~7mm, 7mm~10mm , clean and dry granular aggregates of different particle size levels, and then weigh them according to a certain mass ratio according to different particle size levels and mix them evenly; b) weigh carbon fibers, and use composite treatment to process carbon fibers. Heating to 400°C in medium temperature and keeping it warm for 8 hours, and then soaking with silane coupling agent; c) Weighing liquid synthetic resin, diluent, toughening agent and curing agent and mixing them into a uniform resin system, which will be surface treated Add the carbon fiber into the uniformly mixed resin system, and stir to make it evenly distributed; d) Add the unif...

Embodiment 1

[0027] Aggregate: 8000g of natural granite particles, of which:

[0028] 0.1mm~0.6mm: 1040g, accounting for 13%

[0029] 0.6mm~2mm: 1360g, accounting for 17%

[0030] 2mm~3.5mm: 1200g, accounting for 15%

[0031] 3.5mm~5mm: 1120g, accounting for 14%

[0032] 5mm~7mm: 1360g, accounting for 17%

[0033] 7mm~10mm: 1920g, accounting for 24%

[0034] Adhesive matrix 975g, wherein:

[0035] Epoxy resin 660g

[0036] Curing agent ethylenediamine 200g

[0037] Thinner acetone 55g

[0038] Toughener dibutyl phthalate 60g

[0039] Carbon fiber 25g

[0040] The obtained carbon fiber reinforced polyester mineral composite material: the compressive strength is 119.35MPa, and the damping ratio is 0.192.

Embodiment 2

[0042] Aggregate: 50kg of natural granite particles, of which:

[0043] 0.1mm~0.6mm: 7kg, accounting for 14%

[0044] 0.6mm~2mm: 8kg, accounting for 16%

[0045] 2mm~3.5mm: 7.5kg, accounting for 15%

[0046] 3.5mm~5mm: 7kg, accounting for 14%

[0047] 5mm~7mm: 9kg, accounting for 18%

[0048] 7mm~10mm: 11.5kg, accounting for 23%

[0049] Adhesive matrix 7.8kg, of which:

[0050] Epoxy resin 5.5kg

[0051] Curing agent ethylenediamine 1.6kg

[0052] Thinner acetone 0.3kg

[0053] Toughening agent dibutyl phthalate 0.4kg

[0054] Carbon fiber 0.2kg

[0055] The obtained carbon fiber reinforced polyester mineral composite material: the compressive strength is 108.51MPa, and the damping ratio is 0.189.

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