CN102504492B - Carbon fiber and glass fiber hybrid-reinforced sheet moulding compound and manufacturing technology thereof - Google Patents
Carbon fiber and glass fiber hybrid-reinforced sheet moulding compound and manufacturing technology thereof Download PDFInfo
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Abstract
The invention provides a carbon fiber and glass fiber hybrid-reinforced sheet moulding compound and is characterized in that the sheet moulding compound mainly comprises resin paste I, resin paste II and thickening agent; the manufacturing technology of the sheet moulding compound comprises the following steps: the preparation of the resin paste I, the resin paste II and the thickening agent; the mixing of the resin paste I and the thickening agent and that of the resin paste II and the thickening agent; and impregnation: the resin paste I and chopped carbon fiber, and the resin paste II and chopped glass fiber are impregnated on an SMC (Sheet Molding Compound) machine set respectively, the impregnated chopped glass fiber is uniformly placed on the impregnated chopped carbon fiber, and then the impregnated chopped glass fiber and the impregnated chopped carbon fiber are composited by pressure through a compacting machine to manufacture a carbon fiber and glass fiber hybrid sheet material which is wound or packaged in a box through the compacting machine and then is subject to slaking treatment; and after the slaking treatment, the carbon fiber and glass fiber hybrid sheet material is made into a finished sheet moulding compound product through mould pressing. The sheet moulding compound has a low cost and a low manufacturing cost, can meet requirements for utilization, is suitable for industrial production and is simple and applicable.
Description
Technical field
The present invention relates to matrix material, is sheet molding compound and production technique thereof that a kind of carbon fiber and glass fiber hybrid strengthen.
Background technology
Fortifying fibre is the most important integral part of matrix material, and its effect is to make matrix material have certain physical strength and toughness, makes material through Tensile, shear the mechanical effects such as impact.Although carbon-fibre composite has high elastic coefficient, high heat resistance, the advantages such as low density,, carbon fiber is price not only, and the process cost of carbon-fibre composite are also high.The features such as although and alkali-free Non-twisting glass fibre possesses good dispersity, boundling is good, cuttability is good, and dipping property is good, and price is lower,, its performance can not show a candle to carbon-fibre composite.Therefore, select several fibers that can be complementary in performance and price to make strongthener, can not only bring into play advantage separately, can also reduce costs.Due to, low cost be carbon-fibre composite to the important factor of industrialization development, therefore, the production technique that adopts carbon fiber and glass fiber hybrid to strengthen is progressively to promote carbon-fibre composite in the effective way of industry and other field extensive application.In the industry existing, when article of manufacture, also there are carbon fibre initial rinse fabric and glass fibre preimpregnation cloth interlayer to mix the mode with interlaminar hybrid, first make single prepreg, then mixing laying, still, which is owing to being subject to radially, the restriction of weft fiber fabric is not flowed in mould, can only manufacture the product of similar flat board.There is not yet so far carbon fiber and the sheet molding compound of glass fiber hybrid enhancing and report and the application of production technique thereof.
Summary of the invention
Technical problem to be solved by this invention is, the advantage of a kind of aggregated carbon fiber and glass fibre is provided, and makes up both deficiencies, and cost is low, can meet the carbon fiber of service requirements and the sheet molding compound that glass fiber hybrid strengthens; And provide and be suitable for suitability for industrialized production, simply applicable, the sheet molding material manufacturing technique that the carbon fiber of low cost of manufacture and glass fiber hybrid strengthen.
The technical scheme that solves its technical problem employing is: the sheet molding compound that a kind of carbon fiber and glass fiber hybrid strengthen, it is characterized in that: simultaneously impregnation of carbon fibers and glass fibre and two components of adopting flood systems on same production line, it is mainly comprised of resin paste I, resin paste II and thickening material; Described resin paste I is mainly by 70.0-90.0 part thermosetting resin of mass parts, 30.0-10.0 part low shrink resin, 0.8-1.5 part solidifying agent, 0.5-1.0 part stopper MODE, 2.0-4.0 part crosslinking styrene, the anti-phase separation agent BYK-972 of 0.6-2.0 part, 1.0-3.0 part inner pattern releasing agent applicable BYK-9065 and 1.0-3.0 part Zinic stearas, 1.2-2.8 part coupling agent KH-580,2-3 part Ricinate BYK-9076,6.0-12.0 part polyethylene powder forms.Described resin paste II is mainly by 50.0-70.0 part thermosetting resin of mass parts, 50.0-30.0 part low shrink resin, 1.2-1.5 part solidifying agent, 0.5-1.0 part stopper MODE, 2.0-4.0 part crosslinking styrene, the anti-phase separation agent BYK-972 of 0.6-2.0 part, 1.0-3.0 part inner pattern releasing agent applicable BYK-9065 and 1.0-3.0 part Zinic stearas, 0.5-1.5 part Ricinate BYK-9010 and 2-3 part BYK-9076,1.2-2.8 part coupling agent KH-580,20.0-80.0 part hydroxide filler aluminum oxide or calcium carbonate and 4.0-6.0 part polyethylene powder form.Described thickening material is mainly by 64 parts of vinylbenzene of mass parts, and 35 parts of activated magnesias and 1 part of Zinic stearas form.
Described thermosetting resin is: vinyl epoxy resin, unsaturated polyester resin that can thickening.
Described solidifying agent is CH-335 or TBPB.
Described coupling agent is: KH-580.
The specification of described carbon fiber is 3K, 6K, 12K, 24K, 48K or 60K; The non-twist glass fibre of specification alkali-free of described glass fibre, its specification is 2400TEX or 4800TEX.
A production technique for the sheet molding compound that carbon fiber and glass fiber hybrid strengthen, is characterized in that: it comprises the following steps:
The first step: batching
1) preparation of resin paste I: take 70.0-90.0 part vinyl epoxy resin by mass parts, 30.0-10.0 part low shrink resin, 1.2-1.5 part solidifying agent CH-335, 0.5-1.0 part stopper MODE, 2.0-4.0 part crosslinking styrene, the anti-phase separation agent BYK-972 of 0.6-2.0 part, 1.0-3.0 part inner pattern releasing agent applicable BYK-9065 and 1.0-3.0 part Zinic stearas, 1.2-2.8 part coupling agent KH-580, 2-3 part Ricinate BYK-9076, 6.0-12.0 part polyethylene powder joins in the first stirring tank, stirring velocity is 800-1200r/min, temperature is controlled at 34-38 ℃, stir after 10 min, vacuumize 0, 08, after vacuum stirring 5 min, stop stirring, viscosity controller is mixed with resin paste I at 6000-10000cps,
2) preparation of resin paste II: take 50.0-70.0 part vinyl epoxy resin by mass parts, 50.0-30.0 part low shrink resin, 1.2-1.5 part solidifying agent CH-335, 0.5-1.0 part stopper MODE, 2.0-4.0 part crosslinking styrene, the anti-phase separation agent BYK-972 of 0.6-2.0 part, 1.0-3.0 part inner pattern releasing agent applicable BYK-9065 and 1.0-3.0 part Zinic stearas, 0.5-1.5 part Ricinate BYK-9010 and 2-3 part Ricinate BYK-9076, 1.2-2.8 part coupling agent KH-580, 20.0-80.0 part hydroxide filler aluminum oxide or calcium carbonate and 4.0-6.0 part polyethylene powder join in the second stirring tank, stirring velocity is 1000-1500r/min, temperature is controlled at 34-38 ℃, stir after 10 min, vacuumize 0, 08, after vacuum stirring 5 min, stop stirring, viscosity controller is mixed with resin paste II at 8000-15000cps,
3) preparation of thickening material: by mass parts ratio, vinylbenzene, magnesium oxide and Zinic stearas are 64:35:1, put into successively in stirred pot, start high speed dispersor, speed is adjusted to 800-1200r/min, after stirring, with 100 order stainless (steel) wires, filter, viscosity controller is mixed with thickening material at 15000-25000cps;
Second step: mix
1) resin paste I and thickening material are pressed to mass parts than 100:1, be input to on-line mixing device mix through volume pump, mixed resin paste directly imports in first doctor groove;
2) resin paste II and thickening material are pressed to mass parts than 100:0.9, be input to on-line mixing device mix through volume pump, mixed resin paste directly imports in the second doctor groove;
The 3rd step: dipping
1) adjusting first doctor gap is 0.5-0.7mm, and the chopped carbon fiber by resin paste I and specification 1/4 ", 1/2 ", 1 " or 2 " floods on SMC unit, resin paste I with the mass parts of chopped carbon fiber than being 30-80:70-20;
2) adjusting second doctor gap is 1.0-1.3mm, the short glass fiber of resin paste II and specification 1/4 ", 1/2 ", 1 " or 2 " is flooded on SMC unit, resin paste II with the mass parts of chopped glass fibre than being 30-80:70-30;
3) short glass fiber of dipping is placed in above the chopped carbon fiber of dipping equably, through compactor travelling speed, is 3-18 M/min, and it is compound that pressure is that 30-45 PSI carries out, and makes thickness 2.0-2.4mm, and substance is 1800-2500 g/m
2the sheet material of carbon fiber and glass fiber hybrid, rolling or packing-box design after compactor;
The 4th step: slaking, the sheet material of the carbon fiber of rolling or packing-box design and glass fiber hybrid is put into curing chamber thickening, curing temperature is 36-40 ℃, viscosity controller is carried out maturation process at 1500 ± 5,000,000 CPS;
The 5th step: by the sheet material of the carbon fiber of maturation process and glass fiber hybrid, carry out mold pressing, molding temperature: 130-140 ℃, molding pressure: 10-12 Mpa, dwell time: 55-60sec/mm makes sheet molding compound finished product.
Advantage applies of the present invention exists:
1. the sheet molding compound that carbon fiber and glass fiber hybrid strengthen, the advantage of collection carbon fiber and glass fibre, makes up both deficiency, and cost is low, can meet service requirements; And provide and be suitable for suitability for industrialized production, simply applicable, the sheet molding material manufacturing technique that the carbon fiber of low cost of manufacture and glass fiber hybrid strengthen;
2. the sheet molding material manufacturing technique that carbon fiber and glass fiber hybrid strengthen, utilizes unique resin paste formula, is convenient to soaking into of carbon fiber, and do not adopt the normally used process for manufacturing prepregs of current carbon fibre material, therefore, cost of equipment is low, and manufacturing expense is low;
3. the solvent of common carbon fiber prepreg process using volatile, can cause the pollution to environment, and technique of the present invention is that carbon fibre material is adopted to ripe sheet molding compound thickened systems, and the solvent that does not need volatile, not only save material, and, environment is not polluted, belong to low-carbon (LC) production technique;
4. common carbon fiber prepreg is taken a lot of work when laying, time-consuming, and the cycle that forms goods generally needs more than 3 hour, and this technique only needs several minutes;
5. the prepreg of mold pressing is conventionally at 180 ℃ of compacted unders, and this process stempressing temperature 130-140 ℃, molding pressure: 10-12 Mpa moulding, save the energy;
6. common prepreg is subject to radially the restriction with broadwise type of weave, can not in die cavity, flow, need be on mould 100% stone, and the chopped fiber system of this process using, under High Temperature High Pressure, can in die cavity, flow, therefore the comparatively complicated goods of moldable shape of product;
7. common carbon fiber prepreg adopts manual mode moulded products more, and the carbon fiber-containing sheet material that this technique is manufactured adopts press moulding mode, can realize automatic production;
8. this technique is also applicable to manufacture the fibre-reinforced sheet molding compound of other type;
9. this technique is also applicable to manufacture the sheet molding compound that pure carbon fiber strengthens.
Embodiment
Below sheet molding compound and the production technique thereof of carbon fiber of the present invention and glass fiber hybrid enhancing are described in detail.
The sheet molding compound that carbon fiber of the present invention and glass fiber hybrid strengthen is mainly comprised of resin paste I, resin paste II and thickening material.
Described resin paste I is mainly by 70.0-90.0 part thermosetting resin of mass parts, 30.0-10.0 part low shrink resin, 1.2-1.5 part solidifying agent, 0.5-1.0 part stopper MODE, 2.0-4.0 part crosslinking styrene, the anti-phase separation agent BYK-972 of 0.6-2.0 part, 1.0-3.0 part inner pattern releasing agent applicable BYK-9065 and 1.0-3.0 part Zinic stearas, 2-3 part Ricinate BYK-9076,1.20-2.80 part coupling agent KH-580,6.0-12.0 part polyethylene powder forms.
Described resin paste II is mainly by 50.0-70.0 part thermosetting resin of mass parts, 50.0-30.0 part low shrink resin, 1.2-1.5 part solidifying agent, 0.5-1.0 part stopper MODE, 2.0-4.0 part crosslinking styrene, the anti-phase separation agent BYK-972 of 0.6-2.0 part, 1.0-3.0 part inner pattern releasing agent applicable BYK-9065 and 1.0-3.0 part Zinic stearas, 0.5-1.5 part Ricinate BYK-9010 and 2-3 part BYK-9076,1.2-2.8 part coupling agent KH-580,20.0-80.0 part hydroxide filler aluminum oxide or calcium carbonate and 4.0-6.0 part polyethylene powder form.
Described thickening material is mainly by 64 parts of vinylbenzene of mass parts, and 35 parts of activated magnesias and 1 part of Zinic stearas form.
Described thermosetting resin is: vinyl epoxy resin, unsaturated polyester resin.
Described solidifying agent is CH-335 or TBPB.
Described coupling agent is: KH-580.
The specification of described carbon fiber is 3K, 6K, 12K, 24K, 48K or 60K; The non-twist glass fibre of specification alkali-free of described glass fibre, its specification is 2400TEX or 4800TEX.
The production technique of the sheet molding compound that carbon fiber of the present invention and glass fiber hybrid strengthen comprises the following steps:
The first step: batching
1) preparation of resin paste I: take 70.0-90.0 part vinyl epoxy resin by mass parts, 30.0-10.0 part low shrink resin, 1.2-1.5 part solidifying agent CH-335, 0.5-1.0 part stopper MODE, 2.0-4.0 part crosslinking styrene, the anti-phase separation agent BYK-972 of 0.6-2.0 part, 1.0-3.0 part inner pattern releasing agent applicable BYK-9065, 2-3 part Ricinate BYK-9076, 1.2-2.8 part coupling agent KH-580, 1.0-3.0 part Zinic stearas and 6.0-12.0 part polyethylene powder join in the first stirring tank, stirring velocity is 800-1200r/min, temperature is controlled at 34-38 ℃, stir after 10 min, vacuumize 0, 08, after vacuum stirring 5 min, stop stirring, viscosity controller is mixed with resin paste I at 6000-10000cps,
2) preparation of resin paste II: take 50.0-70.0 part vinyl epoxy resin by mass parts, 50.0-30.0 part low shrink resin, 1.2-1.5 part solidifying agent CH-335, 0.5-1.0 part stopper MODE, 2.0-4.0 part crosslinking styrene, the anti-phase separation agent BYK-972 of 0.6-2.0 part, 1.0-3.0 part inner pattern releasing agent applicable BYK-9065, 0.5-1.5 part Ricinate BYK-9010 and 2-3 part BYK-9076, , 1.2-2.8 part coupling agent KH-580, 1.0-3.0 part Zinic stearas, 20.0-80.0 part hydroxide filler aluminum oxide or calcium carbonate and 4.0-6.0 part polyethylene powder join in the second stirring tank, stirring velocity is 1000-1500r/min, temperature is controlled at 34-38 ℃, stir after 10 min, vacuumize 0, 08, after vacuum stirring 5 min, stop stirring, viscosity controller is mixed with resin paste II at 8000-15000cps,
3) preparation of thickening material: by mass parts ratio, vinylbenzene, magnesium oxide and Zinic stearas are 64:35:1, put into successively in stirred pot, start high speed dispersor, speed is adjusted to 800-1200r/min, after stirring, with 100 order stainless (steel) wires, filter, viscosity controller is mixed with thickening material at 15000-25000cps;
Second step: mix
1) resin paste I and thickening material are pressed to mass parts than 100:1, be input to on-line mixing device mix through volume pump, mixed resin paste directly imports in first doctor groove;
2) resin paste II and thickening material are pressed to mass parts than 100:0.9, be input to on-line mixing device mix through volume pump, mixed resin paste directly imports in the second doctor groove;
The 3rd step: dipping
1) adjusting first doctor gap is 0.5-0.7mm, and the chopped carbon fiber by resin paste I and specification 1/4 ", 1/2 ", 1 " or 2 " floods on SMC unit, resin paste I with the mass parts of chopped carbon fiber than being 30-80:70-20;
2) adjusting second doctor gap is 1.0-1.3mm, the short glass fiber of resin paste II and specification 1/4 ", 1/2 ", 1 " or 2 " is flooded on SMC unit, resin paste II with the mass parts of chopped glass fibre than being 30-80:70-20;
3) first cut carbon fiber, then, cutting glass fibre, runs to glass fibre cutting unit when below when being loaded with the carrier film of carbon fiber, starts cutter for glass fiber cutting, glass fibre is placed in above chopped carbon fiber equably, now, be loaded with the upper of resin paste, lower carrier film is clipped in the middle chopped carbon fiber and glass fibre to enter compactor, compactor travelling speed is 3-18 M/min, and pressure is 30-45 PSI.Make thickness 2.0-2.4mm, substance is 1800-2500 g/m
2carbon fiber and the sheet material of glass fiber hybrid, rolling or packing-box design after compactor;
The 4th step: slaking, the sheet material of the carbon fiber of rolling or packing-box design and glass fiber hybrid is put into curing chamber thickening, curing temperature is 36-40 ℃, viscosity controller is carried out maturation process at 1500 ± 5,000,000 CPS;
The 5th step: by the sheet material of the carbon fiber of maturation process and glass fiber hybrid, carry out mold pressing, molding temperature: 130-140 ℃, molding pressure: 10-12 Mpa, dwell time: 55-60sec/mm makes sheet molding compound finished product.
The present invention is raw materials used to be easy to get, and is commercially available prod.
Wherein: solidifying agent is CH-335, its chemical name: 1.1-dual-tert-butyl peroxidation-3.3.5-trimethyl-cyclohexane, molecular formula: C
17h
34o
4, molecular weight: half life temperature was 92 ℃ in 302.5,10 hours, within 1 hour, half life temperature is 112 ℃, and within 1 minute, half life temperature is 155 ℃; Solidifying agent or be TBPB, its chemical name: benzoic t-butyl ester peroxide.
Coupling agent is KH-580, is a kind of organo-functional group silane coupling agent, for improving that glass strengthens and can improving their mechanical property containing the thermosetting resin of mineral filler.Chemical name: γ-mercaptopropyl trimethoxysilane, molecular formula: HS (CH2) 3Si (OCH3) 3, physico-chemical property: this product is colourless transparent liquid, dissolves in multiple organic solvent.Molecular weight: 238.4, density (ρ 20) g/cm:1.045, refractive index (nD): 1.442 ± 0.005.
Ricinate is that BYK-9010 is solvent-free wetting dispersing agents. during for fillers dispersed, reduce viscosity, chemical constitution: with the multipolymer of acidic-group, typical case's materialization data: acid number: 129 mg KOH/g, non-volatile part: 95 %, 20 ° of C:1.16 g/ml of density.
Ricinate BYK-9076, chemical constitution: high molecular weight alkyl ammonium salt multipolymer, materialization data: amine value: 44 mg KOH/g, acid number: 38 mg, KOH/g, non-volatile part: 96 %, specific refractory power: 1.468, flash-point: >100 ℃.
Inner pattern releasing agent applicable is BYK-9065, can substitute or the alternative Zinic stearas of part comprehensively.
Anti-phase separation agent is BYK-972, for being separated of preventing from occurring between resin and low-shrinkage component.Chemical constitution: the solution of high molecular block interpolymers, materialization data: amine value: 11 mg KOH/g, non-volatile part: 30 %, 20 ℃ of density: 1.02 g/ml, specific refractory power: 1.438, flash-point: 38.
Stopper is MODE, for improving the mobility of material.Para benzoquinone by 5% (PBQ) and 5% 2,6 ditertiary butyl p cresol (BHT) are dissolved in 90% diallyl isophthalate (DAP) formulated, chemical name: para benzoquinone (PBQ), molecular formula: C
8h
4o
2molecular weight: 108.1, content:>=99%; Chemical name: 2,6 ditertiary butyl p cresol (BHT), molecular formula: C
15h
24o, molecular weight: 220.0.
Filler is fine aluminum hydroxide powder, superfine heavy calcium carbonate, as required optional one.Fine aluminum hydroxide powder (ATH), fineness 1-2 μ m, moisture content is less than 0.1,20-80 part that addition is amount of resin; Can improve flame retardant properties and the physical mechanical strength of material.ATH thermal dehydration is decomposed, and caloric receptivity reaches 1967.2J/kg, can effectively suppress intensification and the thermal destruction of polymkeric substance.The closelypacked bimorph crystal structure of ATH can catch the hydroxyl radical free radical of initiated polymerization thing burning, breaks off chain reaction.
Superfine heavy calcium carbonate (C
acO
3), fineness 1-2 μ m, moisture content is less than 0.1, molecular weight: 100.09, relative density: 2.45-2.50, particle diameter: 1.0-2.0 μ m.
Magnesium oxide is the thickening material for resin, molecular formula: MgO, and molecular weight: 40.30, iodine sorption value; ≤ 165.
Fiber is that the specification of carbon fiber is: 3K, 12K, 24K, 48K or 60K.
Glass fibre is alkali-free Non-twisting glass fibre, and its specification is: 2400TEX or 4800TEX.
Specific examples 1:
Utilize carbon fiber and the glass fiber hybrid that the present invention produces to strengthen sheet molding compound, mouldable band stiffening web, bolt hole, side opening, the product of the 3D shape that pre-embedding metal part etc. are complicated.
The existing diesel motor valve bonnet lid non-twist sheet-shaped material moulding materials of alkali-free that use more, for proof strength, its fibre content is greater than 32%, and fitting surface wall thickness reaches 12MM, rest part is greater than 4MM, the about 7Kg of weight, product material requirement is in 150 ℃ of oil after oil resistant test in 1080 hours, and material property decay can not surpass 10%, and without distortion, without cracking, without bubble, corrosion-free.The technical program is implemented as follows:
The first step: batching
1) preparation of resin paste I: take 85.00Kg vinyl epoxy resin, 15.00kg low shrink resin, 1.50kg solidifying agent CH-335, 0.80kg stopper MODE, 4.0kg vinylbenzene, the anti-phase separation agent BYK-972 of 1.50kg, 2.0kg inner pattern releasing agent applicable BYK-9065, 2.20kg coupling agent KH-580, 1.80Kg dispersant B YK-9076, 2.0kg Zinic stearas and 10.0kg part polyethylene powder join in the first stirring tank, stirring velocity is 800-1200r/min, temperature is controlled at 38 ℃, stir after 10 min, vacuumize 0, 08, after vacuum stirring 5 min, stop stirring, it is standby that viscosity controller is mixed with resin paste I at 6000-10000cps.,
2) preparation of resin paste II: take 70.00kg vinyl epoxy resin, 30.00kg part low shrink resin, 1.50kg solidifying agent CH-335, 0.80kg stopper MODE, 4.0kg crosslinking styrene, the anti-phase separation agent BYK-972 of 1.50kg, 2.0kg inner pattern releasing agent applicable BYK-9065, 1.00kg Ricinate BYK-9010 and 1.8.0Kg dispersant B YK-9076, 1.60kg coupling agent KH-580, 2.0kg part Zinic stearas, 50.0kg calcium carbonate, 5.0kg polyethylene powder joins in the second stirring tank, stirring velocity is 1000-1500r/min, temperature is controlled at 38 ℃, stir after 10 min, vacuumize 0, 08, after vacuum stirring 5 min, stop stirring, resin paste viscosity controller is at 8000-15000cps, standby,
3) preparation of thickening material: by mass parts ratio, vinylbenzene, magnesium oxide and Zinic stearas are 64:35:1, put into successively in stirred pot, start high speed dispersor, speed is adjusted to 800-1200r/min, after stirring, with 100 order stainless (steel) wires, filters, thickening material viscosity controller is at 15000-25000cps, standby;
Second step: mix
1) resin paste I and thickening material are pressed to mass parts than 100:1, be input to on-line mixing device mix through volume pump, mixed resin paste directly imports in first doctor groove;
2) resin paste II and thickening material are pressed to mass parts than 100:0.9, be input to on-line mixing device mix through volume pump, mixed resin paste directly imports in the second doctor groove;
The 3rd step: dipping
1) adjusting first doctor gap is 0.7mm, by resin paste I and specification 1 " chopped carbon fiber, on SMC unit, flood, resin paste I with the mass parts of chopped carbon fiber than being 60:40;
2) adjusting second doctor gap is 1.2mm, by resin paste II and specification 1 " short glass fiber on SMC unit, flood, resin paste II with the mass parts of chopped glass fibre than being 55:45;
3) short glass fiber of dipping is placed in above the chopped carbon fiber of dipping equably, in compactor travelling speed, is 12 M/min, and it is compound that pressure is that 45 PSI carry out, and makes thickness 2.3mm, and substance is 2400 g/m
2carbon fiber and the sheet material of glass fiber hybrid, rolling or packing-box design after compactor;
The 4th step: slaking, the sheet material of the carbon fiber of rolling or packing-box design and glass fiber hybrid is put into curing chamber thickening, curing temperature is 38 ℃, viscosity controller is carried out maturation process at 1500 ± 5,000,000 CPS;
The 5th step: by the sheet material of the carbon fiber of maturation process and glass fiber hybrid, carry out mold pressing, adjust upper and lower mould temperature: 130-140 ℃, molding pressure: 12 Mpa, dwell time: 55sec/mm makes sheet molding compound finished product.
The product that adopts this programme compacting, its goods fitting surface wall thickness reaches 7MM, and rest part 2.5MM left and right, weighs less than 5Kg, and the physicochemical property of product is far away higher than pure glass fiber material.
Specific examples 2:
With the carbon fiber of manufacture of the present invention and the sheet molding compound of glass fiber hybrid, can be used for trolley part, the products such as small-sized fan blade.
The first step: batching
1) preparation of resin paste I: take 75.00Kg vinyl epoxy resin, 25.00kg low shrink resin, 1.30kg solidifying agent CH-335, 0.60kg stopper MODE, 3.0kg crosslinking styrene, 1. the anti-phase separation agent BYK-972 of 0kg, 2.0kg inner pattern releasing agent applicable BYK-9065, 1.80kg coupling agent KH-580, 1.5kg Zinic stearas and 12.0kg polyethylene powder join in the first stirring tank, stirring velocity is 800-1200r/min, temperature is controlled at 38 ℃, stir after 10 min, vacuumize 0, 08, after vacuum stirring 5 min, stop stirring, it is standby that viscosity controller is mixed with resin paste I at 6000-10000cps.,
2) preparation of resin paste II: take 65.00kg vinyl epoxy resin, 35.00kg part low shrink resin, 1.25kg solidifying agent CH-335, 0.60kg stopper MODE, 5.0kg crosslinking styrene, the anti-phase separation agent BYK-972 of 1.00kg, 2.0kg inner pattern releasing agent applicable BYK-9065, 1.50kg Ricinate BYK-9010, 1.8kg coupling agent KH-580, 1.5kg part Zinic stearas, 70.0kg filler-calcium carbonate, 4.0kg polyethylene powder joins in the second stirring tank, stirring velocity is 1000-1500r/min, temperature is controlled at 38 ℃, stir after 10 min, vacuumize 0, 08, after vacuum stirring 5 min, stop stirring, resin paste viscosity controller is at 8000-15000cps, standby,
3) preparation of thickening material: by mass parts ratio, vinylbenzene, magnesium oxide and Zinic stearas are 64:35:1, put into successively in stirred pot, start high speed dispersor, speed is adjusted to 800-1200r/min, after stirring, with 100 order stainless (steel) wires, filters, thickening material viscosity controller is at 15000-25000cps, standby;
Second step: mix
1) resin paste I and thickening material are pressed to mass parts than 100:1, be input to on-line mixing device mix through volume pump, mixed resin paste directly imports in first doctor groove;
2) resin paste II and thickening material are pressed to mass parts than 100:0.9, be input to on-line mixing device mix through volume pump, mixed resin paste directly imports in the second doctor groove;
The 3rd step: dipping
1) adjusting first doctor gap is 0.6mm, by resin paste I and specification 1 " chopped carbon fiber, on SMC unit, flood, resin paste I with the mass parts of chopped carbon fiber than being 50:50;
2) adjusting second doctor gap is 1.2mm, by resin paste II and specification 1 " short glass fiber on SMC unit, flood, resin paste II with the mass parts of chopped glass fibre than being 65:35;
3) short glass fiber of dipping is placed in above the chopped carbon fiber of dipping equably, and compactor travelling speed is 12 M/min, and it is compound that pressure is that 45 PSI carry out, and makes thickness 2.4mm, and substance is 2400 g/m
2carbon fiber and the sheet material of glass fiber hybrid, rolling or packing-box design after compactor;
The 4th step: slaking, the sheet material of the carbon fiber of rolling or packing-box design and glass fiber hybrid is put into curing chamber thickening, curing temperature is 38 ℃, viscosity controller is carried out maturation process at 1500 ± 5,000,000 CPS;
The 5th step: by the sheet material of the carbon fiber of maturation process and glass fiber hybrid, carry out mold pressing, in adjustment, counterdie temperature: 130-140 ℃, molding pressure: 12 Mpa, dwell time: 55sec/mm makes sheet molding compound finished product.
Specific examples 3:
With the carbon fiber of manufacture of the present invention and the sheet molding compound of glass fiber hybrid, can be used for the products such as track traffic parts.
The first step: batching
1) preparation of resin paste I: take 90.00Kg vinyl epoxy resin, 10.00kg low shrink resin, 1.50kg solidifying agent CH-335, 1.0kg stopper MODE, 3.0kg crosslinking styrene, the anti-phase separation agent BYK-972 of 1.2kg, 2.0kg inner pattern releasing agent applicable BYK-9065, 2.20kg coupling agent KH-580, 1.6kg Zinic stearas and 8.0kg polyethylene powder join in the first stirring tank, stirring velocity is 800-1200r/min, temperature is controlled at 38 ℃, stir after 10 min, vacuumize 0, 08, after vacuum stirring 5 min, stop stirring, it is standby that viscosity controller is mixed with resin paste I at 6000-10000cps.,
2) preparation of resin paste II: take 62.00kg vinyl epoxy resin, 38.00kg part low shrink resin, 1.20kg solidifying agent CH-335, 0.90kg stopper MODE, 5.0kg crosslinking styrene, the anti-phase separation agent BYK-972 of 1.20kg, 2.0kg inner pattern releasing agent applicable BYK-9065, 1.50kg Ricinate BYK-9010, 1.8kg coupling agent KH-580, 1.6kg part Zinic stearas, 60.00kg aluminium hydroxide, 4.00kg polyethylene powder joins in the second stirring tank, stirring velocity is 1000-1500r/min, temperature is controlled at 38 ℃, stir after 10 min, vacuumize 0, 08, after vacuum stirring 5 min, stop stirring, resin paste viscosity controller is at 8000-15000cps, standby,
3) preparation of thickening material: by mass parts ratio, vinylbenzene, magnesium oxide and Zinic stearas are 64:35:1, put into successively in stirred pot, start high speed dispersor, speed is adjusted to 800-1200r/min, after stirring, with 100 order stainless (steel) wires, filters, thickening material viscosity controller is at 15000-25000cps, standby;
Second step: mix
1) resin paste I and thickening material are pressed to mass parts than 100:1, be input to on-line mixing device mix through volume pump, mixed resin paste directly imports in first doctor groove;
2) resin paste II and thickening material are pressed to mass parts than 100:0.9, be input to on-line mixing device mix through volume pump, mixed resin paste directly imports in the second doctor groove;
The 3rd step: dipping
1) adjusting first doctor gap is 0.6mm, by resin paste I and specification 1 " chopped carbon fiber, on SMC unit, flood, resin paste I with the mass parts of chopped carbon fiber than being 52:48;
2) adjusting second doctor gap is 1.2mm, by resin paste II and specification 1 " short glass fiber on SMC unit, flood, resin paste II with the mass parts of chopped glass fibre than being 60:40;
3) short glass fiber of dipping is placed in above the chopped carbon fiber of dipping equably, and compactor travelling speed is 12 M/min, and it is compound that pressure is that 45 PSI carry out, and makes thickness 2.4mm, and substance is 2400 g/m
2carbon fiber and the sheet material of glass fiber hybrid, rolling or packing-box design after compactor.
The present invention does not limit to above-mentioned embodiment, and those skilled in the art all belong to without copying and improving of creative work the scope that the claims in the present invention are protected
.The production technique of the sheet molding compound strengthening by carbon fiber of the present invention and glass fiber hybrid has been carried out the trial production of 6 months, has realized effect of the present invention.
Claims (6)
1. the sheet molding compound that carbon fiber and glass fiber hybrid strengthen, is characterized in that: impregnation of carbon fibers and glass fibre and two components of adopting flood systems simultaneously on same production line, and it is mainly comprised of resin paste I, resin paste II and thickening material; Described resin paste I is mainly by 70.0-90.0 part thermosetting resin of mass parts, 30.0-10.0 part low shrink resin, 1.2-1.5 part solidifying agent, 0.5-1.0 part stopper MODE, 2.0-4.0 part vinylbenzene, the anti-phase separation agent BYK-W972 of 0.6-2.0 part, 1.0-3.0 part inner pattern releasing agent applicable BYK-P9065,1.2-2.8 part coupling agent KH-580,2-3 part Ricinate BYK-9076,1.0-3.0 part Zinic stearas and 6.0-12.0 part polyethylene powder form; Described resin paste II is mainly by 50.0-70.0 part thermosetting resin of mass parts, 50.0-30.0 part low shrink resin, 1.2-1.5 part solidifying agent, 0.5-1.0 part stopper MODE, 2.0-4.0 part crosslinking styrene, the anti-phase separation agent BYK-W972 of 0.6-2.0 part, 1.0-3.0 part inner pattern releasing agent applicable BYK-P9065,0.5-1.5 part Ricinate BYK-W9010,2-3 part BYK-9076,1.2-2.8 part coupling agent KH-580,1.0-3.0 part Zinic stearas, 20.0-80.0 part aluminium hydroxide or calcium carbonate and 4.0-6.0 part polyethylene powder form; Described thickening material is mainly by 64 parts of vinylbenzene of mass parts, and 35 parts of activated magnesias and 1 part of Zinic stearas form; Formulated in the DAP that described stopper MODE is dissolved in 90% by the BHT of 5% PBQ and 5%.
2. the sheet molding compound that carbon fiber according to claim 1 and glass fiber hybrid strengthen, is characterized in that: described thermosetting resin is: select can thickening vinyl epoxy resin, unsaturated polyester resin.
3. the sheet molding compound that carbon fiber according to claim 1 and glass fiber hybrid strengthen, is characterized in that: described solidifying agent is CH-335 or TBPB.
4. the sheet molding compound that carbon fiber according to claim 1 and glass fiber hybrid strengthen, is characterized in that: described coupling agent is: KH-580.
5. the sheet molding compound that carbon fiber according to claim 1 and glass fiber hybrid strengthen, is characterized in that: the specification of described carbon fiber is 3K, 6K, 12K, 24K, 48K or 60K; The non-twist glass fibre of specification alkali-free of described glass fibre, its specification is 2400TEX or 4800TEX.
6. the production technique of the sheet molding compound that a kind of carbon fiber according to claim 1 and glass fiber hybrid strengthen, is characterized in that: it comprises the following steps:
The first step: batching
1) preparation of resin paste I: take 70.0-90.0 part vinyl epoxy resin by mass parts, 30.0-10.0 part low shrink resin, 1.2-1.5 part solidifying agent CH-335, 0.5-1.0 part stopper MODE, 2.0-4.0 part vinylbenzene, the anti-phase separation agent BYK-W972 of 0.6-2.0 part, 1.0-3.0 part inner pattern releasing agent applicable BYK-P9065 and 1.0-3.0 part Zinic stearas, 1.2-2.8 part coupling agent KH-580, 2.0-3.0 part Ricinate BYK-9076, 6.0-12.0 part polyethylene powder joins in the first stirring tank, stirring velocity is 800-1200r/min, temperature is controlled at 34-38 ℃, stir after 10 min, vacuumize 0.08, after vacuum stirring 5min, stop stirring, viscosity controller is mixed with resin paste I at 6000-10000cps,
2) preparation of resin paste II: take 50.0-70.0 part vinyl epoxy resin by mass parts, 50.0-30.0 part low shrink resin, 1.2-1.5 part solidifying agent CH-335, 0.5-1.0 part stopper MODE, 2.0-4.0 part vinylbenzene, the anti-phase separation agent BYK-W972 of 0.6-2.0 part, 1.0-3.0 part inner pattern releasing agent applicable BYK-P9065 and 1.0-3.0 part Zinic stearas, 0.5-1.5 part Ricinate BYK-W9010 and 2-3 part Ricinate BYK-9076, 1.2-2.8 part coupling agent KH-580, 20.0-80.0 part aluminium hydroxide or calcium carbonate and 4.0-6.0 part polyethylene powder join in the second stirring tank, stirring velocity is 1000-1500r/min, temperature is controlled at 34-38 ℃, stir after 10 min, vacuumize 0.08, after vacuum stirring 5 min, stop stirring, viscosity controller is mixed with resin paste II at 8000-15000cps,
3) preparation of thickening material: by mass parts ratio, vinylbenzene, magnesium oxide and Zinic stearas are 64:35:1, put into successively in stirred pot, start high speed dispersor, speed is adjusted to 800-1200r/min, after stirring, with 100 order stainless (steel) wires, filter, viscosity controller is mixed with thickening material at 15000-25000cps;
Second step: mix
1) resin paste I and thickening material are pressed to mass parts than 100:1, be input to on-line mixing device mix through volume pump, mixed resin paste directly imports in first doctor groove;
2) resin paste II and thickening material are pressed to mass parts than 100:0.9, be input to on-line mixing device mix through volume pump, mixed resin paste directly imports in the second doctor groove;
The 3rd step: dipping
1) adjusting first doctor gap is 0.5-0.7mm, and the chopped carbon fiber by resin paste I and specification 1/4 ", 1/2 ", 1 " or 2 " floods on SMC unit, resin paste I with the mass parts of chopped carbon fiber than being 30-80:70-20;
2) adjusting second doctor gap is 1.0-1.3mm, the short glass fiber of resin paste II and specification 1/4 ", 1/2 ", 1 " or 2 " is flooded on SMC unit, resin paste II with the mass parts of chopped glass fibre than being 30-80:70-20;
3) short glass fiber of dipping is placed in above the chopped carbon fiber of dipping equably, through compactor travelling speed, is 3-18 M/min, and it is compound that pressure is that 30-45psi carries out, and makes thickness 2.0-2.4mm, and substance is 1800-2500 g/m
2the sheet material of carbon fiber and glass fiber hybrid, rolling or packing-box design after compactor;
The 4th step: slaking, the sheet material of the carbon fiber of rolling or packing-box design and glass fiber hybrid is put into curing chamber thickening, curing temperature is 36-40 ℃, viscosity controller is carried out maturation process at 1500 ± 5,000,000 cps;
The 5th step: by the sheet material of the carbon fiber of maturation process and glass fiber hybrid, carry out mold pressing, molding temperature: 130-140 ℃, molding pressure: 10-12 Mpa, dwell time: 55-60s/mm makes sheet molding compound finished product.
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