High-strength high-impact glass fabric and preparation method thereofTechnical field
The present invention relates to a kind of glass fabric and preparation method thereof, be specifically related to a kind of high-strength high-impact glass fabric and preparation method thereof.
Background technology
Glass fabric is present modal a kind of reinforcing material, but glass fibre is with resin-bonded the time, owing to have the mechanics plane of weakness between glass fibre and the resin, therefore layering easily.And glass fibre can receive the effect of inherent strain in forming process, and in process, can receive the effect of external mechanical force, therefore defective such as a little less than some high-strength high-impact fields will exist intensity difference, impact resistance.
Therefore, at present in high-strength high-impact field (like the helmet, bumper, yacht, fishing boat and sports equipment etc.), often select the carbon fiber of intensity height, good impact resistance for use, but the price of carbon fiber is very expensive.
Summary of the invention
One of the object of the invention is to address the above problem, and provides a kind of and not only can combine well with resin, but also goes for the high-strength high-impact glass fabric in high-strength high-impact field.
Another object of the present invention is to provide the preparation method of above-mentioned high-strength high-impact glass fabric.
The technical scheme that realizes one of the object of the invention is: a kind of high-strength high-impact glass fabric; It is to be interweaved by warp thread and weft yarn to form; Said warp thread and weft yarn all are glass fibres that surfaces coated is covered with sizing agent; Said sizing agent by coupling agent, lubricant, epoxy film forming agent, polyester film forming agent, polyurethane film-forming agent and water according to 0.4: 0.4: 4.5: 1.8: 0.4: 92.5 weight ratio mixes, and the solids content in the sizing agent is 5.0%～7.0%; The moisture content of glass fabric≤0.20%, combustible content are 0.6%～1.0%; The warp-wise intensity of glass fabric is 1600N/25mm～3000N/25mm, and latitudinal strength is 1500N/25mm～1800N/25mm.
The mass area ratio of said glass fabric is 250 ± 20g/m2, warp-wise intensity is 1600N/25mm～1800N/25mm, latitudinal strength is 1500N/25mm～1600N/25mm.
The mass area ratio of said glass fabric is 300 ± 24g/m2, warp-wise intensity is 2000N/25mm～2200N/25mm, latitudinal strength is 1700N/25mm～1800N/25mm.
The mass area ratio of said glass fabric is 400 ± 32g/m2, warp-wise intensity is 2500N/25mm～2700N/25mm, latitudinal strength is 1450N/25mm～1550N/25mm.
The mass area ratio of said glass fabric is 500 ± 40g/m2, warp-wise intensity is 2800N/25mm～3000N/25mm, latitudinal strength is 1600N/25mm～1700N/25mm.
The technical scheme that realizes another purpose of the present invention is: a kind of preparation method of high-strength high-impact glass fabric comprises drawing process, twisting process and weaving process; The temperature of said drawing process is 1250 ± 10 ℃, and drawing process also is included in filament surfaces and applies sizing agent; Said sizing agent by coupling agent, lubricant, epoxy film forming agent, polyester film forming agent, polyurethane film-forming agent and water according to 0.4: 0.4: 4.5: 1.8: 0.4: 92.5 weight ratio mixes, and the solids content in the sizing agent is 5.0%～7.0%.
The twist of said twisting process is 35 ± 3 sth. made by twisting/rice, twists with the fingers to twisting with the fingers for Z.
The good effect that the present invention has: (1) high-strength high-impact glass fabric of the present invention can combine with different resin system, comprises thermosetting resin and thermoplastic resin, and can layering when combining.(2) high-strength high-impact glass fabric of the present invention has higher intensity and favorable shock resistance; Go for high-strength high-impact fields such as the helmet, bumper, yacht, fishing boat and sports equipment, greatly reduce cost than carbon fiber.(3) the present invention passes through at the special sizing agent of glass fiber precursor surface-coated; Glass fibre is soaked into fast; Thereby improved the textile performance of glass fibre; Effectively avoid the loss of strength of glass fibre in fabrication processes, improved the binding ability of glass fibre and resin, and then improved the intensity of glass fabric.(4) institutional framework of glass fabric of the present invention is twill or satin weave; Can reduce the flexing degree and the intertwined point of fiber like this; Keep the straight of warp thread and weft yarn; Softness is abundant again, is convenient to when being impacted, can instantaneous impact stress be disperseed to all directions, improves anti-secondary pulse intensity.(5) the present invention is through carrying out preferably the temperature of drawing process and the single fiber diameter of precursor, thereby can further improve the intensity of glass fibre.
The specific embodiment
(embodiment 1)
The high-strength high-impact glass fabric of present embodiment is to be interweaved by warp thread and weft yarn to form.
The preparation method of the high-strength high-impact glass fabric of present embodiment is following:
Drawing process: e-glass marble (alkali metal oxide content≤0.8%) is melted down at 1250 ± 10 ℃, is that the platinum-rhodium alloy bushing of 2.0mm is drawn into precursor through 400 holes, aperture then.In pulling process, filament surfaces applies one deck sizing agent.This sizing agent by coupling agent, lubricant, epoxy film forming agent, polyester film forming agent, polyurethane film-forming agent and water according to 0.4: 0.4: 4.5: 1.8: 0.4: 92.5 weight ratio mixes; Solids content is 5.0%～7.0% in the sizing agent, and combustible content is 0.6%～1.0%.Said coupling agent adopts is that the trade mark that the Nanjing Xiang flies chemistry institute production is the silane coupler of KH-570; Said lubricant adopts is that the trade mark that Yixing gold ancient cooking vessel experimental assembly Co., Ltd produces is 3018 lubricant; What said epoxy film forming agent adopted is the APR resin that Yixing gold ancient cooking vessel experimental assembly Co., Ltd produces; What said polyester film forming agent adopted is that the trade mark that Yixing gold ancient cooking vessel experimental assembly Co., Ltd produces is the polyester film forming agent of SR-1, and said polyurethane film-forming agent is adopted is that the trade mark of Nanjing Glass Fibre Research and Design Institute production is the polyurethane film-forming agent of NBS-430.
Twisting process: precursor is twisted resultant yarn on twisting equipment, twist with the fingers to being the Z sth. made by twisting, the twist is 35 sth. made by twisting/rice.
Weaving process: will twist good yarn according to counting 96tex, single fiber diameter 11.0 μ m through yarn number, being placed on the creel through close 13.6/cm; Wear palm fibre then; Then count 96tex, single fiber diameter 11.0 μ m, 11.2/cm of filling density, the long 50m/ volume of volume looming weaving according to the latitude yarn number again; Drying and shaping 2h under 80 ± 5 ℃ temperature at last obtains the high-strength high-impact glass fabric of moisture content≤0.20%.
The warp-wise intensity of the glass fabric that present embodiment makes is 1600N/25mm～1800N/25mm, and latitudinal strength is 1500N/25mm～1600N/25mm.
(embodiment 2～embodiment 4)
Each embodiment and embodiment 1 are basic identical, and difference is seen table 1.
Table 1
| ? | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Project | EWR250 | EWR300 | EWR400 | EWR500 |
| Mass area ratio (g/m2） | 250±20 | 300±24 | 400±32 | 500±40 |
| Warp-wise intensity | 1600N/25mm～1800N/25mm | 2000N/25mm～2200N/25mm | 2500N/25mm～2700N/25mm | 2800N/25mm～3000N/25mm |
| Latitudinal strength | 1500N/25mm～1600N/25mm | 1700N/25mm～1800N/25mm | 1450N/25mm～1550N/25mm | 1600N/25mm～1700N/25mm |
| Wire-drawing temperature | 1250±10℃ | 1250±10℃ | 1250±10℃ | 1250±10℃ |
| The bushing aperture | 2.0mm | 2.0mm | 1.8mm | 1.8mm |
| The twist | 35 sth. made by twisting/rice | 35 sth. made by twisting/rice | 35 sth. made by twisting/rice | 35 sth. made by twisting/rice |
| Sth. made by twisting to | Z twists with the fingers | Z twists with the fingers | Z twists with the fingers | Z twists with the fingers |
| Through the yarn number number | 96tex | 96tex | 132tex | 175tex |
| Latitude yarn number number | 96tex | 96tex | 132tex | 175tex |
| Single fiber diameter | 11.0μm | 11.0μm | 9.0μm | 9.0μm |
| Through close (root/cm) | 13.6 | 16.0 | 19.2 | 18.2 |
| Filling density (root/cm) | 11.2 | 12.0 | 10.4 | 10.4 |
| Volume is long | The 50m/ volume | The 50m/ volume | The 50m/ volume | The 50m/ volume |
| Moisture content | ≤0.20% | ≤0.20% | ≤0.20% | ≤0.20% |
| Combustible content | 0.6%～1.0% | 0.6%～1.0% | 0.6%～1.0% | 0.6%～1.0% |
| Institutional framework | 1/3 twill or 2/5 satin weave | 1/3 twill or 2/5 satin weave | 1/3 twill or 2/5 satin weave | 1/3 twill or 2/5 satin weave |