CN104725779A - Glass fiber reinforced plastic - Google Patents
Glass fiber reinforced plastic Download PDFInfo
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- CN104725779A CN104725779A CN201510066476.XA CN201510066476A CN104725779A CN 104725779 A CN104725779 A CN 104725779A CN 201510066476 A CN201510066476 A CN 201510066476A CN 104725779 A CN104725779 A CN 104725779A
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Abstract
The invention discloses a glass fiber reinforced plastic comprising the following components in parts by weight: 40-60 parts of vinyl epoxy resin, 90-140 parts of glass fiber cloth, 15-30 parts of chopped fibers, 3-6 parts of a coupling agent and 1-3 parts of a dispersant. The preparation process comprises the following steps: 1, adding the coupling agent into the dispersant, uniformly dispersing, then adding into the vinyl epoxy resin, then adding the chopped fibers, and stirring uniformly to obtain a curing agent; and 2, paving the glass fiber cloth into a mold layer by layer, putting the curing agent obtained in the step 1 into the mold, and molding by curing at 160-220 DEG C to obtain the glass fiber reinforced plastic. According to the glass fiber reinforced plastic disclosed by the invention, the combination between glass fibers and resin is increased, so that the strength, corrosion resistance and weathering resistance of the product are promoted.
Description
Technical field
The present invention relates to a kind of glass filament reinforced plastics.
Background technology
Glass filament reinforced plastics (FRP) is a kind of composite plastic being body material with glass fiber reinforcement unsaturated polyester, epoxy resin and resol.As the one of matrix material, glass reinforced plastic, because of the performance advantage of its uniqueness, is widely applied in aerospace, railway, decorative architecture, family's living furniture, building materials bathroom and sanitation project etc. relevant industries.Existing glass filament reinforced plastics adopts pultrude process to be made, and is specially: under towing mechanism traction, make pitch based fiber strongthener, first premolding in a mold, and make it curing molding through heating, make glass fiber reinforced plastic shapes, finally cut into the glass fiber reinforced plastics product of desired length.
In above-mentioned preparation technology, be that because fiberglass surfacing easily adsorbs various gas, water vapour, dust etc., this can affect its surface tension by glass fibre direct impregnation resin solution, cause and the change of bounding force between resin matrix.Even a lot of research has proved water durable glasses fiber, at the temperature of 100-200 degrees Celsius, all can there is hydrolysis reaction and structure is destroyed.The water-absorbent of glass fibre and chemical constitution relevant with the relative humidity of air.The water-absorbent of fiber with alkali-metal content and relative air humidity increase and increase.At silicone hydroxyl not only adsorbed water molecule and the dust that fiberglass surfacing generates, and generate hydrogen bond or chemical bond each other.On the other hand, the difference of the thermal expansivity of glass fibre and resin matrix is large; The surface energy of glass fibre is high, promote hydrophilic, so the wetting property of resin to glass fibre is poor, bonding interface obtains bad, easy formation rupture stress, the easy layering of glass filament reinforced plastics, thus affect the performance of goods, namely causes goods all can not reach ideal effect in intensity, corrosion-resistant and weathering resistance.
Summary of the invention
For above-mentioned technical problem, the present invention proposes a kind of glass filament reinforced plastics, and the present invention passes through to increase the combination between glass fibre and resin, with the intensity of improving product, corrosion-resistant and weathering resistance.
Glass filament reinforced plastics, comprises the component of following weight proportion:
Preparation process is, step one: added by coupling agent after being uniformly dispersed in dispersion agent, join in Vinylite epoxy resin, then adds chopped strand and stir and obtain solidifying agent;
Step 2, is successively routed to glasscloth in mould, and the solidifying agent of step one gained is placed in mould, and curing molding under temperature is 160-220 degrees celsius, obtains glass filament reinforced plastics.
Preferably, also comprise combined low shrinkage additive and organic per-compounds, the weight proportion of described combined low shrinkage additive is 3-8 parts, the weight proportion of described organic per-compounds is 0.4-0.8 part, and combined low shrinkage additive and organic per-compounds join in dispersion agent.
Preferably, combined low shrinkage additive is the combination of one or more in the lightly crosslinked polystyrene of the core shell copolymer of graft type, the poly-acetic acid-vinylbenzene of block type, modification.
Preferably, organic per-compounds is peroxidation trimethylacetic acid tertiary butyl ester.
Preferably, the curing molding in described step 2 carries out under vacuum.
Have employed such scheme, after coupling agent, combined low shrinkage additive, organic per-compounds are passed through dispersion agent Monodispersed by the present invention, add in Vinylite epoxy resin, combined low shrinkage additive has excellent low-shrinkage, good micro interface, good mechanical property and resistance to small molecules perviousness etc., and Vinylite epoxy resin and glasscloth can be impelled to combine.Coupling agent is the compound of the functional group with two or more different in kind, one end parent's fiberglass surfacing, the other end parent resin, thus play the function served as bridge of glass fibre and interlaminar resin, in impregnation and moulding process, coupling agent moves to fiberglass surfacing generation coupled action, Vinylite epoxy resin and glasscloth are bonded together, avoid the formation of the unfavorable factor of rupture stress and the layering of glasscloth reinforced plastics, thus improve intensity, the corrosion resistance nature of glasscloth reinforced plastics.In addition, the moulding process under the condition of vacuum not only makes glass fibre and the easier structure of Vinylite epoxy resin, and combines tightr, improves the intensity of product further.
Embodiment
Embodiment one:
Glass filament reinforced plastics of the present invention, comprises the component of following weight proportion:
The weight proportion of combined low shrinkage additive is 3 parts
The weight proportion of organic per-compounds is 0.4 part
Preparation process is, step one: coupling agent, combined low shrinkage additive and organic per-compounds are joined after being uniformly dispersed in dispersion agent, join in Vinylite epoxy resin, then adds chopped strand and stir and obtain solidifying agent;
Step 2, glasscloth is successively routed in mould, and the solidifying agent of step one gained is placed in mould, be that (vacuum tightness is 0.01-0.08MPa for 160 degrees Celsius and vacuum in temperature, be preferably 0.03MPa) be cured under condition shaping, obtain glass filament reinforced plastics.
What glasscloth adopted is alkali-free glass fiber cloth, and the feature that alkali-free glass fiber cloth has is: for low temperature-196 DEG C, between high temperature 300 DEG C, has weathering resistance; Not easily adhere to any material; Resistance to chemical attack, the corrosion of ability strong acid, highly basic, chloroazotic acid and various organic solvent; Frictional coefficient is low, is the optimal selection of oil-free self lubrication; Transmittance reaches 6 ~ 13%; There is high insulating property, antiultraviolet, anti-electrostatic; Intensity is high; There is good mechanical characteristics; Drug resistance.Chopped strand adopts short glass fiber, and its length is 3mm.Combined low shrinkage additive adopts the core shell copolymer of graft type, and organic per-compounds adopts peroxidation trimethylacetic acid tertiary butyl ester, and coupling agent adopts silane coupling agent, and dispersion agent adopts polyoxyethylene glycol.
Following test has been carried out to obtained glass filament reinforced plastics:
1, the acidproof weathering test of FRP bar
2, the alkaline-resisting weathering test of FRP bar
3, FRP bar humidity weathering test
4, FRP bar ultraviolet-resistant aging test
5, FRP bar cold test
Embodiment two:
Glass filament reinforced plastics of the present invention, comprises the component of following weight proportion:
The weight proportion of combined low shrinkage additive is 4 parts
The weight proportion of organic per-compounds is 0.5 part
Preparation process is, preparation process is, step one: coupling agent, combined low shrinkage additive and organic per-compounds are joined after being uniformly dispersed in dispersion agent, join in Vinylite epoxy resin, then add chopped strand and stir and obtain solidifying agent;
Step 2, glasscloth is successively routed in mould, and the solidifying agent of step one gained is placed in mould, be 180 degrees Celsius and vacuum vacuum tightness in temperature be (0.01-0.08MPa, be preferably 0.05MPa) be cured under condition shaping, obtain glass filament reinforced plastics.
What glasscloth adopted is alkali-free glass fiber cloth, and chopped strand adopts short glass fiber, and its length is 3mm.Combined low shrinkage additive adopts the poly-acetic acid-vinylbenzene of block type, and organic per-compounds adopts peroxidation trimethylacetic acid tertiary butyl ester, and coupling agent adopts chromium complex coupling agent, and dispersion agent adopts polyoxyethylene glycol.
Following test has been carried out to obtained glass filament reinforced plastics:
1, the acidproof weathering test of FRP bar
2, the alkaline-resisting weathering test of FRP bar
3, FRP bar humidity weathering test
4, FRP bar ultraviolet-resistant aging test
5, FRP bar cold test
Embodiment three:
Glass filament reinforced plastics of the present invention, comprises the component of following weight proportion:
The weight proportion of combined low shrinkage additive is 5 parts
The weight proportion of organic per-compounds is 0.6 part
Preparation process is, preparation process is, step one: coupling agent, combined low shrinkage additive and organic per-compounds are joined after being uniformly dispersed in dispersion agent, join in Vinylite epoxy resin, then add chopped strand and stir and obtain solidifying agent;
Step 2, glasscloth is successively routed in mould, and the solidifying agent of step one gained is placed in mould, temperature be 200 degrees Celsius and vacuum (0.01-0.08MPa, be preferably 0.06MPa) be cured under condition shaping, obtain glass filament reinforced plastics.
What glasscloth adopted is alkali-free glass fiber cloth, and chopped strand adopts short glass fiber, and its length is 3mm.Combined low shrinkage additive adopts the lightly crosslinked polystyrene of modification, and organic per-compounds adopts peroxidation trimethylacetic acid tertiary butyl ester, and coupling agent adopts chromium complex coupling agent, and dispersion agent adopts polyoxyethylene glycol.
Following test has been carried out to obtained glass filament reinforced plastics:
1, the acidproof weathering test of FRP bar
2, the alkaline-resisting weathering test of FRP bar
3, FRP bar humidity weathering test
4, FRP bar ultraviolet-resistant aging test
5, FRP bar cold test
Embodiment four:
Glass filament reinforced plastics of the present invention, comprises the component of following weight proportion:
The weight proportion of combined low shrinkage additive is 8 parts
The weight proportion of organic per-compounds is 0.8 part
Preparation process is, preparation process is, step one: coupling agent, combined low shrinkage additive and organic per-compounds are joined after being uniformly dispersed in dispersion agent, join in Vinylite epoxy resin, then add chopped strand and stir and obtain solidifying agent;
Step 2, successively being routed in mould by glasscloth, and the solidifying agent of step one gained is placed in mould, is 220 degrees Celsius and vacuum (0.01-0.08MPa in temperature, be preferably 0.07MPa) be cured under condition shaping, obtain glass filament reinforced plastics.
What glasscloth adopted is alkali-free glass fiber cloth, and chopped strand adopts short glass fiber, and its length is 3mm.Combined low shrinkage additive adopts the core shell copolymer of graft type, and organic per-compounds adopts peroxidation trimethylacetic acid tertiary butyl ester, and coupling agent adopts titanate coupling agent, and dispersion agent adopts polyoxyethylene glycol.
Following test has been carried out to obtained glass filament reinforced plastics:
1, the acidproof weathering test of FRP bar
2, the alkaline-resisting weathering test of FRP bar
3, FRP bar humidity weathering test
4, FRP bar ultraviolet-resistant aging test
5, FRP bar cold test
Can be found out by each embodiment above and detection data, glass filament reinforced plastics of the present invention can acid and alkali-resistance corrosion and intensity is only subject to slight influence, and pass through the condition of water soaking or limit low temperature, too large change can't be there is in its intensity, therefore, glass filament reinforced plastics of the present invention has the feature of corrosion resistance and good and good weatherability.
Toughner can also be added in above each embodiment, the sizing agent rete snappiness of glass filament reinforced plastics can be increased by toughner, the toughness of glass filament reinforced plastics entirety is obtained increase, wherein liquid acrylonitrile butadiene rubber selected by toughner, consumption is 2-15 parts of resin sizing material, being preferably 4-12 parts, can be specifically 5 parts, 6 parts, 7 parts, 8 parts, 9 parts, 10 parts, 11 parts.
Claims (6)
1. glass filament reinforced plastics, is characterized in that, comprises the component of following weight proportion:
Preparation process is, step one: added by coupling agent after being uniformly dispersed in dispersion agent, join in Vinylite epoxy resin, then adds chopped strand and stir and obtain solidifying agent;
Step 2, glasscloth dimension be successively routed in mould, and the solidifying agent of step one gained is placed in mould, curing molding under temperature is 160-220 degrees celsius, obtains glass filament reinforced plastics.
2. glass filament reinforced plastics according to claim 1, is characterized in that:
3. glass filament reinforced plastics according to claim 1, it is characterized in that: also comprise combined low shrinkage additive and organic per-compounds, the weight proportion of described combined low shrinkage additive is 3-8 parts, the weight proportion of described organic per-compounds is 0.4-0.8 part, and combined low shrinkage additive and organic per-compounds join in dispersion agent.
4. glass filament reinforced plastics according to claim 3, is characterized in that, combined low shrinkage additive is the combination of one or more in the lightly crosslinked polystyrene of the core shell copolymer of graft type, the poly-acetic acid-vinylbenzene of block type, modification.
5. glass filament reinforced plastics according to claim 3, is characterized in that, organic per-compounds is peroxidation trimethylacetic acid tertiary butyl ester.
6. glass filament reinforced plastics according to claim 1, is characterized in that, the curing molding in described step 2 carries out under vacuum.
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| CN201510066476.XA CN104725779B (en) | 2015-02-09 | 2015-02-09 | Glass fiber reinforced plastic |
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| CN104725779B CN104725779B (en) | 2017-05-24 |
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Cited By (8)
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|---|---|---|---|---|
| CN105199321A (en) * | 2015-10-10 | 2015-12-30 | 湖南大学 | Novel FRP material and preparation method thereof |
| CN107589507A (en) * | 2017-11-01 | 2018-01-16 | 江苏永鼎股份有限公司 | A kind of fiberglass reinforced plastics round bar being used in light-duty all-dielectric aerial optical cable |
| CN109096697A (en) * | 2018-04-09 | 2018-12-28 | 南通德瑞森复合材料有限公司 | A kind of glass reinforced plastic elbow die processing technology |
| CN109206856A (en) * | 2017-07-06 | 2019-01-15 | 广东胜为实业有限公司 | A kind of application of insulating composite material and the insulating composite material in the code of street |
| CN109935751A (en) * | 2018-11-23 | 2019-06-25 | 万向一二三股份公司 | Fixed panel of a kind of battery modules and preparation method thereof |
| CN112063106A (en) * | 2020-08-03 | 2020-12-11 | 中国建筑股份有限公司 | Epoxy resin light composite material and preparation method thereof |
| CN115742361A (en) * | 2022-11-10 | 2023-03-07 | 宏晓复合材料有限公司 | Glass fiber reinforced plastic |
| CN115850612A (en) * | 2022-12-09 | 2023-03-28 | 招商局重庆交通科研设计院有限公司 | Manufacturing method of weather-resistant and salt fog-resistant FRP unit for bridge collision avoidance |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105199321A (en) * | 2015-10-10 | 2015-12-30 | 湖南大学 | Novel FRP material and preparation method thereof |
| CN109206856A (en) * | 2017-07-06 | 2019-01-15 | 广东胜为实业有限公司 | A kind of application of insulating composite material and the insulating composite material in the code of street |
| CN107589507A (en) * | 2017-11-01 | 2018-01-16 | 江苏永鼎股份有限公司 | A kind of fiberglass reinforced plastics round bar being used in light-duty all-dielectric aerial optical cable |
| CN109096697A (en) * | 2018-04-09 | 2018-12-28 | 南通德瑞森复合材料有限公司 | A kind of glass reinforced plastic elbow die processing technology |
| CN109935751A (en) * | 2018-11-23 | 2019-06-25 | 万向一二三股份公司 | Fixed panel of a kind of battery modules and preparation method thereof |
| CN109935751B (en) * | 2018-11-23 | 2022-07-19 | 万向一二三股份公司 | Battery module fixing panel and preparation method thereof |
| CN112063106A (en) * | 2020-08-03 | 2020-12-11 | 中国建筑股份有限公司 | Epoxy resin light composite material and preparation method thereof |
| CN112063106B (en) * | 2020-08-03 | 2022-06-21 | 中国建筑股份有限公司 | Epoxy resin light composite material and preparation method thereof |
| CN115742361A (en) * | 2022-11-10 | 2023-03-07 | 宏晓复合材料有限公司 | Glass fiber reinforced plastic |
| CN115850612A (en) * | 2022-12-09 | 2023-03-28 | 招商局重庆交通科研设计院有限公司 | Manufacturing method of weather-resistant and salt fog-resistant FRP unit for bridge collision avoidance |
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| CN104725779B (en) | 2017-05-24 |
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Effective date of registration: 20180810 Address after: 215100 -A009 station 3, 58 Nantian Cheng Road, Suzhou, Jiangsu. Patentee after: Suzhou Heng Chuan Photovoltaic Technology Co., Ltd. Address before: 223001 room 422, 7 Beijing North Road, Qinghe District, Huaian, Jiangsu, 422 Patentee before: Jiangsu rising sun new forms of energy development in science and technology company limited |
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