CN109293248A - A kind of preparation method of ultra-fine fibre glass - Google Patents
A kind of preparation method of ultra-fine fibre glass Download PDFInfo
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- CN109293248A CN109293248A CN201811341608.5A CN201811341608A CN109293248A CN 109293248 A CN109293248 A CN 109293248A CN 201811341608 A CN201811341608 A CN 201811341608A CN 109293248 A CN109293248 A CN 109293248A
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
- C03B37/022—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from molten glass in which the resultant product consists of different sorts of glass or is characterised by shape, e.g. hollow fibres, undulated fibres, fibres presenting a rough surface
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C13/00—Fibre or filament compositions
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Abstract
The invention discloses a kind of preparation methods of ultra-fine fibre glass.The present invention is modified glass fibre using rare-earth salts and coupling agent, can be improved tensile strength, elasticity modulus, wear-resisting property and the greasy property of glass fibre；The tensile strength of ultra-fine fibre glass provided by the invention is up to 3.32MPa, and elasticity modulus is up to 95.2Gpa, suitable for preparing Anti-cut Gloves, can greatly improve the anti-cutting, tear resistance and penetration-resistant of gloves.
Description
Technical field
The present invention relates to glass-fibre technology field, in particular to a kind of preparation method of ultra-fine fibre glass.
Background technique
Anti-cut Gloves are a kind of gloves for being difficult to be cut, and the effect of opponent's gas shielded can be widely applied to the segmentation of food meat, glass
The industries such as glass processing, intermetallic composite coating, petrochemical industry, disaster relief and rescue, fire-fighting and rescue.But in the prior art, by thread material
It influences, anti-cutting, tear resistance and the penetration-resistant of Anti-cut Gloves are insufficient.Therefore, it is necessary to which developing one kind can be used for anti-cutting
The ultra-fine fibre glass of gloves improves the anti-cutting, tear resistance and penetration-resistant of gloves.
Summary of the invention
The purpose of the present invention is intended to provide a kind of preparation method of ultra-fine fibre glass, to solve the above technical problems.
To achieve the goals above, the technical solution of the present invention is as follows:
A kind of preparation method of ultra-fine fibre glass, includes the following steps:
(1) weigh following raw material by weight percentage: 50~55% silica, 10~15% boron oxides, 0.1~
0.5% sodium oxide molybdena, 10~15% aluminium oxide, 15~22% calcium oxide, 0.1~0.5% zirconium oxide, 0.1~0.2% iron oxide,
0.1~0.5% porous graphene after mixing weighed raw material crushing, stirring, mixes molten in 1200~1500 DEG C of smelting furnace
Solution obtains high-temperature glass liquid, and recycling centrifugal force to make high-temperature glass liquid by the box that reels off raw silk from cocoons, rapidly cold unload is taken into silk, obtains fibre
Degree is not more than the glass fibre of 0.3 denier；
(2) the resulting glass fibre of step (1) is subjected to acid etching；
(3) step (2) pretreated glass fibre is added in rare-earth salt solution, in ultrasonic field handle 30~
Then 60min is filtered, drying to constant weight；
(4) step (3) treated glass fibre is immersed in coupling agent solution, after impregnating 10~30min, is again heated to
80~90 DEG C, 20~60min is stirred with 1000~1500r/min revolving speed, filtered, be drying to obtain ultra-fine fibre glass.
Preferably, the step (2) specifically includes: the resulting glass fibre of step (1) being immersed hydrochloric acid-ammonium chloride and is mixed
In solution, it is heated to 70~85 DEG C, keeps the temperature 20~40min, through washing, is dehydrated, is dried to obtain pretreated glass fibre.
It is further preferred that in the step (2), in the hydrochloric acid-ammonium chloride mixed solution, the mass concentration of ammonium chloride
It is 30~40%, the concentration of hydrochloric acid is 1~2mol/L.
It is further preferred that in the step (3), the rare earth element in the rare-earth salt solution be selected from lanthanum, cerium, praseodymium, neodymium,
At least one of gadolinium, europium, terbium, yttrium, samarium, ytterbium, thulium, erbium, holmium, dysprosium, lutetium, scandium.
It is further preferred that the rare-earth salt solution is rare-earth chloride solution in the step (3).
It is further preferred that the concentration of rare-earth salts is 0.1~0.5mol/ in the rare-earth salt solution in the step (3)
L。
Preferably, in the step (3), the rare-earth salt solution is yttrium chloride solution.
Preferably, in the step (4), the coupling agent is chromium complex coupling agent, zirconium class coupling agent, silanes coupling
Agent, metatitanic acid lipid coupling agent, aluminate coupling agent, maleic anhydride and its graft copolymerization species coupling agent, polyurethanes coupling
At least one of agent.
Preferably, in the step (4), the coupling agent is Silane coupling agent KH550, silane coupling agent KH560, silane
At least one of coupling agent KH570.
Preferably, in the step (4), the volume of the quality and coupling agent solution of treated the glass fibre
Than for 1:5~10 (g/mL).
Compared with prior art, the beneficial effects of the present invention are:
The present invention is modified glass fibre using rare-earth salts and coupling agent, and the tension that can be improved glass fibre is strong
Degree, elasticity modulus, wear-resisting property and greasy property；The tensile strength of ultra-fine fibre glass provided by the invention is up to
3.32MPa, elasticity modulus are up to 95.2Gpa, suitable for preparing Anti-cut Gloves, can greatly improve anti-cutting, the tear-proof of gloves
Property and penetration-resistant.
Specific embodiment
Specific embodiments of the present invention will be further explained below.It should be noted that for these implementations
The explanation of mode is used to help understand the present invention, but and does not constitute a limitation of the invention.In addition, invention described below
Technical characteristic involved in each embodiment can be combined with each other as long as they do not conflict with each other.
Embodiment 1
A kind of preparation method of ultra-fine fibre glass provided in this embodiment, includes the following steps:
(1) following raw material by weight percentage: 53.2% silica, 12.5% boron oxide, 0.3% oxidation is weighed
Sodium, 12.6% aluminium oxide, 20.8% calcium oxide, 0.25% zirconium oxide, 0.13% iron oxide, 0.22% porous graphene, will claim
After the raw material crushing, stirring mixing taken, mixes and melt in 1450 DEG C of smelting furnace, obtain high-temperature glass liquid, recycle centrifugal force
Making high-temperature glass liquid by the box that reels off raw silk from cocoons, rapidly cold unload is taken into silk, obtains the glass fibre that fiber number is not more than 0.3 denier；
(2) the resulting glass fibre of step (1) is immersed in hydrochloric acid-ammonium chloride mixed solution, is heated to 80 DEG C, heat preservation
30min through washing, is dehydrated, is dried to obtain pretreated glass fibre, wherein in the hydrochloric acid-ammonium chloride mixed solution,
The mass concentration of ammonium chloride is 35%, and the concentration of hydrochloric acid is 1.5mol/L；
(3) step (2) pretreated glass fibre is added in the yttrium chloride solution that concentration is 0.2mol/L, super
45min is handled in sound field, is then filtered, and drying to constant weight；
(4) step (3) is taken treated glass fibre and silane coupling agent according to the mass volume ratio of 1:8 (g/mL)
KH550 solution immerses step (3) treated glass fibre in Silane coupling agent KH550 solution, after impregnating 20min, then plus
Heat stirs 30min to 85 DEG C, with 1200r/min revolving speed, is filtered, is drying to obtain ultra-fine fibre glass.
Embodiment 2
A kind of preparation method of ultra-fine fibre glass provided in this embodiment, includes the following steps:
(1) following raw material by weight percentage: 55% silica, 14.1% boron oxide, 0.5% oxidation is weighed
Sodium, 15% aluminium oxide, 15% calcium oxide, 0.1% zirconium oxide, 0.2% iron oxide, 0.1% porous graphene, by weighed raw material
It after crushing, stirring mixing, mixes and melts in 1200 DEG C of smelting furnace, obtain high-temperature glass liquid, centrifugal force is recycled to make high temperature glass
By the box that reels off raw silk from cocoons, rapidly cold unload is taken into silk to glass liquid, obtains the glass fibre that fiber number is not more than 0.3 denier；
(2) the resulting glass fibre of step (1) is immersed in hydrochloric acid-ammonium chloride mixed solution, is heated to 70 DEG C, heat preservation
40min through washing, is dehydrated, is dried to obtain pretreated glass fibre, wherein in the hydrochloric acid-ammonium chloride mixed solution,
The mass concentration of ammonium chloride is 30%, and the concentration of hydrochloric acid is 2mol/L；
(3) step (2) pretreated glass fibre is added in the yttrium chloride solution that concentration is 0.1mol/L, super
30min is handled in sound field, is then filtered, and drying to constant weight；
(4) step (3) is taken treated glass fibre and silane coupling agent according to the mass volume ratio of 1:5 (g/mL)
KH550 solution immerses step (3) treated glass fibre in Silane coupling agent KH550 solution, after impregnating 10min, then plus
Heat stirs 20min to 80 DEG C, with 1000r/min revolving speed, is filtered, is drying to obtain ultra-fine fibre glass.
Embodiment 3
A kind of preparation method of ultra-fine fibre glass provided in this embodiment, includes the following steps:
(1) weigh following raw material by weight percentage: 50% silica, 15% boron oxide, 0.1% sodium oxide molybdena,
11.8% aluminium oxide, 22% calcium oxide, 0.5% zirconium oxide, 0.1% iron oxide, 0.5% porous graphene, by weighed raw material
It after crushing, stirring mixing, mixes and melts in 1500 DEG C of smelting furnace, obtain high-temperature glass liquid, centrifugal force is recycled to make high temperature glass
By the box that reels off raw silk from cocoons, rapidly cold unload is taken into silk to glass liquid, obtains the glass fibre that fiber number is not more than 0.3 denier；
(2) the resulting glass fibre of step (1) is immersed in hydrochloric acid-ammonium chloride mixed solution, is heated to 85 DEG C, heat preservation
20min through washing, is dehydrated, is dried to obtain pretreated glass fibre, wherein in the hydrochloric acid-ammonium chloride mixed solution,
The mass concentration of ammonium chloride is 40%, and the concentration of hydrochloric acid is 1mol/L；
(3) step (2) pretreated glass fibre is added in the yttrium chloride solution that concentration is 0.5mol/L, super
60min is handled in sound field, is then filtered, and drying to constant weight；
(4) step (3) is taken treated glass fibre and silane coupling agent according to the mass volume ratio of 1:10 (g/mL)
KH550 solution immerses step (3) treated glass fibre in Silane coupling agent KH550 solution, after impregnating 30min, then plus
Heat stirs 60min to 90 DEG C, with 1500r/min revolving speed, is filtered, is drying to obtain ultra-fine fibre glass.
Embodiment 4
A kind of preparation method of ultra-fine fibre glass provided in this embodiment, includes the following steps:
(1) following raw material by weight percentage: 54.5% silica, 10% boron oxide, 0.4% oxidation is weighed
Sodium, 13% aluminium oxide, 21.5% calcium oxide, 0.28% zirconium oxide, 0.12% iron oxide, 0.2% porous graphene, will be weighed
It after the mixing of raw material crushing, stirring, mixes and melts in 1350 DEG C of smelting furnace, obtain high-temperature glass liquid, centrifugal force is recycled to make height
By the box that reels off raw silk from cocoons, rapidly cold unload is taken into silk to warm glass metal, obtains the glass fibre that fiber number is not more than 0.3 denier；
(2) the resulting glass fibre of step (1) is immersed in hydrochloric acid-ammonium chloride mixed solution, is heated to 80 DEG C, heat preservation
30min through washing, is dehydrated, is dried to obtain pretreated glass fibre, wherein in the hydrochloric acid-ammonium chloride mixed solution,
The mass concentration of ammonium chloride is 32%, and the concentration of hydrochloric acid is 1.2mol/L；
(3) step (2) pretreated glass fibre is added in the yttrium chloride solution that concentration is 0.3mol/L, super
40min is handled in sound field, is then filtered, and drying to constant weight；
(4) step (3) is taken treated glass fibre and silane coupling agent according to the mass volume ratio of 1:7.5 (g/mL)
KH550 solution immerses step (3) treated glass fibre in Silane coupling agent KH550 solution, after impregnating 20min, then plus
Heat stirs 50min to 85 DEG C, with 1300r/min revolving speed, is filtered, is drying to obtain ultra-fine fibre glass.
Embodiment 5
A kind of preparation method of ultra-fine fibre glass provided in this embodiment, includes the following steps:
(1) following raw material by weight percentage: 52.5% silica, 11.5% boron oxide, 0.25% oxygen is weighed
Change sodium, 14% aluminium oxide, 21% calcium oxide, 0.25% zirconium oxide, 0.15% iron oxide, 0.35% porous graphene, will weigh
The mixing of raw material crushing, stirring after, mix and melt in 1250 DEG C of smelting furnace, obtain high-temperature glass liquid, centrifugal force is recycled to make
By the box that reels off raw silk from cocoons, rapidly cold unload is taken into silk to high-temperature glass liquid, obtains the glass fibre that fiber number is not more than 0.3 denier；
(2) the resulting glass fibre of step (1) is immersed in hydrochloric acid-ammonium chloride mixed solution, is heated to 80 DEG C, heat preservation
30min through washing, is dehydrated, is dried to obtain pretreated glass fibre, wherein in the hydrochloric acid-ammonium chloride mixed solution,
The mass concentration of ammonium chloride is 30%, and the concentration of hydrochloric acid is 1.5mol/L；
(3) step (2) pretreated glass fibre is added in the yttrium chloride solution that concentration is 0.3mol/L, super
50min is handled in sound field, is then filtered, and drying to constant weight；
(4) step (3) is taken treated glass fibre and silane coupling agent according to the mass volume ratio of 1:6 (g/mL)
KH560 solution immerses step (3) treated glass fibre in silane coupling agent KH560 solution, after impregnating 25min, then plus
Heat stirs 35min to 85 DEG C, with 1200r/min revolving speed, is filtered, is drying to obtain ultra-fine fibre glass.
Embodiment 6
A kind of preparation method of ultra-fine fibre glass provided in this embodiment, includes the following steps:
(1) following raw material by weight percentage: 54.4% silica, 13% boron oxide, 0.5% oxidation is weighed
Sodium, 11% aluminium oxide, 20% calcium oxide, 0.4% zirconium oxide, 0.2% iron oxide, 0.5% porous graphene, by weighed raw material
It after crushing, stirring mixing, mixes and melts in 1350 DEG C of smelting furnace, obtain high-temperature glass liquid, centrifugal force is recycled to make high temperature glass
By the box that reels off raw silk from cocoons, rapidly cold unload is taken into silk to glass liquid, obtains the glass fibre that fiber number is not more than 0.3 denier；
(2) the resulting glass fibre of step (1) is immersed in hydrochloric acid-ammonium chloride mixed solution, is heated to 75 DEG C, heat preservation
30min through washing, is dehydrated, is dried to obtain pretreated glass fibre, wherein in the hydrochloric acid-ammonium chloride mixed solution,
The mass concentration of ammonium chloride is 35%, and the concentration of hydrochloric acid is 1.6mol/L；
(3) step (2) pretreated glass fibre is added in the yttrium chloride solution that concentration is 0.25mol/L,
45min is handled in ultrasonic field, is then filtered, and drying to constant weight；
(4) step (3) is taken treated glass fibre and silane coupling agent according to the mass volume ratio of 1:8 (g/mL)
KH570 solution immerses step (3) treated glass fibre in silane coupling agent KH570 solution, after impregnating 20min, then plus
Heat stirs 40min to 85 DEG C, with 1300r/min revolving speed, is filtered, is drying to obtain ultra-fine fibre glass.
Comparative example 1
A kind of preparation method for ultra-fine fibre glass that this comparative example provides, includes the following steps:
(1) following raw material by weight percentage: 53.2% silica, 12.5% boron oxide, 0.3% oxidation is weighed
Sodium, 12.6% aluminium oxide, 20.8% calcium oxide, 0.25% zirconium oxide, 0.13% iron oxide, 0.22% porous graphene, will claim
After the raw material crushing, stirring mixing taken, mixes and melt in 1450 DEG C of smelting furnace, obtain high-temperature glass liquid, recycle centrifugal force
Making high-temperature glass liquid by the box that reels off raw silk from cocoons, rapidly cold unload is taken into silk, obtains the glass fibre that fiber number is not more than 0.3 denier；
(2) the resulting glass fibre of step (1) is immersed in hydrochloric acid-ammonium chloride mixed solution, is heated to 80 DEG C, heat preservation
30min through washing, is dehydrated, is dried to obtain pretreated glass fibre, wherein in the hydrochloric acid-ammonium chloride mixed solution,
The mass concentration of ammonium chloride is 35%, and the concentration of hydrochloric acid is 1.5mol/L；
(3) step (2) pretreated glass fibre is added in the yttrium chloride solution that concentration is 0.2mol/L, super
45min is handled in sound field, is then filtered, and drying to constant weight to get ultra-fine fibre glass.
Comparative example 2
A kind of preparation method for ultra-fine fibre glass that this comparative example provides, includes the following steps:
(1) following raw material by weight percentage: 53.2% silica, 12.5% boron oxide, 0.3% oxidation is weighed
Sodium, 12.6% aluminium oxide, 20.8% calcium oxide, 0.25% zirconium oxide, 0.13% iron oxide, 0.22% porous graphene, will claim
After the raw material crushing, stirring mixing taken, mixes and melt in 1450 DEG C of smelting furnace, obtain high-temperature glass liquid, recycle centrifugal force
Making high-temperature glass liquid by the box that reels off raw silk from cocoons, rapidly cold unload is taken into silk, obtains the glass fibre that fiber number is not more than 0.3 denier；
(2) the resulting glass fibre of step (1) is immersed in hydrochloric acid-ammonium chloride mixed solution, is heated to 80 DEG C, heat preservation
30min through washing, is dehydrated, is dried to obtain pretreated glass fibre, wherein in the hydrochloric acid-ammonium chloride mixed solution,
The mass concentration of ammonium chloride is 35%, and the concentration of hydrochloric acid is 1.5mol/L；
(3) the pretreated glass fibre of step (2) and silane coupling agent are taken according to the mass volume ratio of 1:8 (g/mL)
KH550 solution immerses step (2) pretreated glass fibre in Silane coupling agent KH550 solution, after impregnating 20min, then
85 DEG C are heated to, 30min is stirred with 1200r/min revolving speed, filtered, be drying to obtain ultra-fine fibre glass.
Beneficial effect in order to further illustrate the present invention, to the fibre of superfine glass obtained by above-described embodiment and comparative example
The performance of dimension is tested, and test result is referring to table 1.
1 the performance test results of table
| Performance | Tensile strength (MPa) | Elasticity modulus (GPa) |
| Embodiment 1 | 3.32 | 95.2 |
| Embodiment 2 | 3.04 | 89.5 |
| Embodiment 3 | 2.97 | 85.2 |
| Embodiment 4 | 3.12 | 91.8 |
| Embodiment 5 | 3.28 | 96.1 |
| Embodiment 6 | 3.17 | 93.3 |
| Comparative example 1 | 2.75 | 78.5 |
| Comparative example 2 | 2.69 | 75.5 |
Above the embodiments of the present invention are described in detail, but the present invention is not limited to described embodiments.It is right
For those skilled in the art, in the case where not departing from the principle of the invention and spirit, these embodiments are carried out more
Kind change, modification, replacement and modification, still fall in protection scope of the present invention.
Claims (10)
1. a kind of preparation method of ultra-fine fibre glass, which comprises the steps of:
(1) weigh following raw material by weight percentage: 50~55% silica, 10~15% boron oxides, 0.1~
0.5% sodium oxide molybdena, 10~15% aluminium oxide, 15~22% calcium oxide, 0.1~0.5% zirconium oxide, 0.1~0.2% iron oxide,
0.1~0.5% porous graphene after mixing weighed raw material crushing, stirring, mixes molten in 1200~1500 DEG C of smelting furnace
Solution obtains high-temperature glass liquid, and recycling centrifugal force to make high-temperature glass liquid by the box that reels off raw silk from cocoons, rapidly cold unload is taken into silk, obtains fibre
Degree is not more than the glass fibre of 0.3 denier；
(2) the resulting glass fibre of step (1) is subjected to acid etching；
(3) step (2) pretreated glass fibre is added in rare-earth salt solution, 30~60min is handled in ultrasonic field,
Then it is filtered, drying to constant weight；
(4) step (3) treated glass fibre is immersed in coupling agent solution, after impregnating 10~30min, it is again heated to 80~
90 DEG C, 20~60min is stirred with 1000~1500r/min revolving speed, filtered, be drying to obtain ultra-fine fibre glass.
2. the preparation method of ultra-fine fibre glass according to claim 1, which is characterized in that the step (2) is specifically wrapped
It includes:
The resulting glass fibre of step (1) is immersed in hydrochloric acid-ammonium chloride mixed solution, is heated to 70~85 DEG C, heat preservation 20~
40min through washing, is dehydrated, is dried to obtain pretreated glass fibre.
3. the preparation method of ultra-fine fibre glass according to claim 2, which is characterized in that described in the step (2)
In hydrochloric acid-ammonium chloride mixed solution, the mass concentration of ammonium chloride is 30~40%, and the concentration of hydrochloric acid is 1~2mol/L.
4. the preparation method of ultra-fine fibre glass according to claim 1, which is characterized in that described in the step (3)
Rare earth element in rare-earth salt solution is in lanthanum, cerium, praseodymium, neodymium, gadolinium, europium, terbium, yttrium, samarium, ytterbium, thulium, erbium, holmium, dysprosium, lutetium, scandium
It is at least one.
5. the preparation method of ultra-fine fibre glass according to claim 1, which is characterized in that described in the step (3)
Rare-earth salt solution is rare-earth chloride solution.
6. the preparation method of ultra-fine fibre glass according to claim 1, which is characterized in that described in the step (3)
The concentration of rare-earth salts is 0.1~0.5mol/L in rare-earth salt solution.
7. the preparation method of ultra-fine fibre glass according to claim 1, which is characterized in that described in the step (3)
Rare-earth salt solution is yttrium chloride solution.
8. the preparation method of ultra-fine fibre glass according to claim 1, which is characterized in that described in the step (4)
Coupling agent be chromium complex coupling agent, zirconium class coupling agent, silane coupling agent, metatitanic acid lipid coupling agent, aluminate coupling agent,
At least one of maleic anhydride and its graft copolymerization species coupling agent, polyurethanes coupling agent.
9. the preparation method of ultra-fine fibre glass according to claim 1, which is characterized in that described in the step (4)
Coupling agent is at least one of Silane coupling agent KH550, silane coupling agent KH560, silane coupling agent KH570.
10. the preparation method of ultra-fine fibre glass according to claim 1, which is characterized in that in the step (4), institute
The ratio of the volume of the quality and coupling agent solution for glass fibre of stating that treated is 1:5~10 (g/mL).
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206290A (en) * | 2019-06-10 | 2019-09-06 | 中铁二十二局集团第五工程有限公司 | Wine library overhanging scaffold construction method |
| CN111019315A (en) * | 2019-12-24 | 2020-04-17 | 上海中镭新材料科技有限公司 | Glass fiber reinforced PC material and preparation method and application thereof |
| CN112321239A (en) * | 2020-11-20 | 2021-02-05 | 佛山市睿德建筑节能材料有限公司 | Ceramic tile glue and preparation method thereof |
| US11724955B2 (en) | 2020-07-29 | 2023-08-15 | Waymo Llc | Superomniphobic bulk optical glass |
-
2018
- 2018-11-12 CN CN201811341608.5A patent/CN109293248A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206290A (en) * | 2019-06-10 | 2019-09-06 | 中铁二十二局集团第五工程有限公司 | Wine library overhanging scaffold construction method |
| CN111019315A (en) * | 2019-12-24 | 2020-04-17 | 上海中镭新材料科技有限公司 | Glass fiber reinforced PC material and preparation method and application thereof |
| CN111019315B (en) * | 2019-12-24 | 2021-12-31 | 上海中镭新材料科技有限公司 | Glass fiber reinforced PC material and preparation method and application thereof |
| US11724955B2 (en) | 2020-07-29 | 2023-08-15 | Waymo Llc | Superomniphobic bulk optical glass |
| CN112321239A (en) * | 2020-11-20 | 2021-02-05 | 佛山市睿德建筑节能材料有限公司 | Ceramic tile glue and preparation method thereof |
| CN112321239B (en) * | 2020-11-20 | 2022-03-08 | 佛山市睿德建筑节能材料有限公司 | Ceramic tile glue and preparation method thereof |
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