CN104387735A - GRP open-web plate, as well as pultrusion method and application thereof - Google Patents
GRP open-web plate, as well as pultrusion method and application thereof Download PDFInfo
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- CN104387735A CN104387735A CN201410556222.1A CN201410556222A CN104387735A CN 104387735 A CN104387735 A CN 104387735A CN 201410556222 A CN201410556222 A CN 201410556222A CN 104387735 A CN104387735 A CN 104387735A
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Abstract
The invention discloses a GRP open-web plate, and further discloses a pultrusion method and application of the open-web plate. The open-web plate comprises UPR (unsaturated polyester resin), reinforced material glass fiber roving and an auxiliary material padding. The pultrusion method comprises the following steps: allowing the roving to pass through a guiding mould configured according to the section configuration required by products; discharging extra resin and bubbles in the guiding mould, and dragging roving by a pultrusion machine to enter the interior of a transverse core for three-level gradient heating continuous curing; pulling out roving after curing to form the open-web plate with the required length. The open-web plate is the light-loading open-web plate; by selecting appropriate raw materials and adopting the appropriate ratio of the raw materials, a structural component light in weight and high in strength is formed; meanwhile, the open-web plate has the advantages of being corrosion resistant and insulating non-magnetic, and is beautiful in appearance and low in cost; by the adoption of the three-level gradient heating continuous curing method, the length of the manufactured pen-web plate is greater than that of the conventional pen-web plate, so that the pen-web plate is applicable to the novel field, and has high application value and wide market prospects.
Description
Technical field
The present invention relates to a kind of glass fiber reinforced plastic open-web plate, the invention still further relates to a kind of pultrusion method of glass fiber reinforced plastic open-web plate, belong to novel material element manufacturing field.
Background technology
Dragging and squeezing glass fiber reinforced plastics production efficiency is high, and the excellent and steady quality of product performance, this becomes common recognition.Can produce high-quality glass reinforced plastic pultruded product as long as have breakthrough in pultrusion technique, market just can be accepted rapidly.
The development of domestic glass reinforced plastic material industry creates good basic substance for glass reinforced plastic pultrusion technique and the market development.At present, except minority strongthener, pultrusion produces that required main raw material(s) is domestic all can be provided.Domestic existing more than 150 bar pultrusion production lines are that solid hardware foundation has been laid in glass reinforced plastic pultrusion technique and the market development, and throughput about reaches more than 30,000 tons.
At present, there is the pultrusion enterprise foreign successful experience of scale in China, through the further investigation to pultrusion molding process, develop fluid pressure type and the crawler type pultrusion production line of the stable performance with oneself characteristic, and substantially achieve the raw-material production domesticization of pultrude process, develop the universal products such as grid, guardrail, Cover for manhole, ladder for electrician, sucker rod, door and window; Meanwhile, also utilize the technical superiority of self to develop the highly difficult dragging and squeezing glass fiber reinforced plastics profiled material of a series of high technology content such as mobile communication base station radome, automative air conditioning wind scooper, become the supplier of international esbablished corporation.
General, the new high-tech enterprise specialize in the designs of the research of Fiberglass-reinforced Plastics Pultrusion Technology And Its Products technology, exploitation and Fiberglass-reinforced Plastics Pultrusion Technology And Its Products equipment and mold, manufacturing, sell.Technological innovation, Product Renewal bring vitality to enterprise, constantly form the source of new profit, and this is the main flow of China's glass reinforced plastic pultrusion technique and the market development.
Therefore, for how by the selection of material or improve the performance that the technique of producing improves glass reinforced plastic itself, to reach the Novel special provisioning request of different field, be the problem of researcher in this field's active research.
Summary of the invention
The object of the invention is to for deficiency of the prior art, a kind of glass fiber reinforced plastic open-web plate and pultrusion method thereof are provided, constitute the structural part of high-strength light, there is the corrosion-resistant and non-magnetic advantage of insulation simultaneously, elegant in appearance, cheap.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of glass fiber reinforced plastic open-web plate, comprise unsaturated polyester resin, strongthener woven glass roving fabric and surperficial felt and subsidiary material filler, its innovative point is: specifically comprise following material and mass percent thereof: 23 ~ 27% unsaturated polyester resins, 55 ~ 58% alkali free glass fibre rove 4800Tex, 14 ~ 16% composite felt and 2 ~ 5% fillers.
Further, described composite felt comprises surperficial felt, continuous felt, stitch-bonded felt and axial cloth.
Further, described filler is aluminium hydroxide.
Another object of the present invention is to provide a kind of pultrusion method of glass fiber reinforced plastic open-web plate, its innovative point is: concrete steps are: woven glass roving fabric yarn group is contained on creel, the yarn bundle of uncoiling, composite felt are respectively by after a series of guide roller, boundling screen and yarn collecting wheel, and it is saturating to enter unsaturated polyester resin impregnated resin drill traverse; Then yarn bundle by the section form required according to goods the guide die that configures; Discharge unnecessary resin and bubble in guide die after, carry out three grades of continuous curing moldings of gradient-heated by entering core rod inside under the traction of extruder; Pull out after shaping, controlling pull-out speed is 0.3 ~ 0.35m/min, finally forms the hollow slab of desired length again.
Further, described three grades of continuous curing moldings of heating, by mould being separated into 3 cavitys, are realized by the different heating temperature controlling 3 cavitys; First concrete steps for regulate Heating temperature, and the temperature controlling the first chamber is 120 ~ 140 DEG C, and the Heating temperature controlling the second chamber is 140 ~ 170 DEG C, and the Heating temperature controlling the 3rd chamber is 130 ~ 150 DEG C.
Further, in described unsaturated polyester resin impregnated resin groove, the viscosity controller of glue is 1.4 ~ 1.8Pa.s.
Of the present invention also have an object to be to provide the application of a kind of glass fiber reinforced plastic open-web plate, is specifically mainly used in sewage disposal, the field of public works, building aspect.
Beneficial effect of the present invention is as follows:
(1) glass fiber reinforced plastic open-web plate of the present invention is light-load hollow slab, by selecting the proportioning of the storeroom of suitable raw material and characterization, constitutes the structural part of high-strength light, has the corrosion-resistant and non-magnetic advantage of insulation simultaneously, elegant in appearance, cheap.
(2) pultrusion method of glass fiber reinforced plastic open-web plate of the present invention, adopt the method for three grades of continuous curing moldings of heating through parameters optimization, the hollow slab produced is than original hollow slab width and highly all get a promotion and increase, therefore sewage disposal is applicable to, the novel field of public works, building aspect etc., has very high applying value and market outlook.
(3) glass fiber reinforced plastic open-web plate of the present invention, by adopting the method for three grades of continuous curing moldings of heating of certain optimisation, the hollow slab tensile strength of production can reach 400 ~ 430Mpa, and tensile modulus can reach 28 ~ 30.1Gpa, flexural strength is 340 ~ 550Mpa, and modulus in flexure is 20 ~ 25Gpa.
Embodiment
Below in conjunction with specific embodiment, technical scheme of the present invention is elaborated.
Embodiment 1
A kind of glass fiber reinforced plastic open-web plate, specifically comprise following material and mass percent thereof: the new penta 2 alcohols unsaturated polyester resins of 23% Nanjing DSM A408-972,58% alkali free glass fibre rove Tex4800, the composite felt comprising surperficial felt, continuous felt, stitch-bonded felt and axial cloth of 14% and 5% filling aluminium hydrate.
In order to make the hollow slab of production than original hollow slab width and highly all get a promotion and increase, be applicable to sewage disposal, the novel field of public works, building aspect etc., the pultrusion method concrete steps that above-mentioned glass fiber reinforced plastic open-web plate adopts are: woven glass roving fabric yarn group is contained on creel, the yarn bundle of uncoiling, composite felt are respectively by after a series of guide roller, boundling screen and yarn collecting wheel, enter unsaturated polyester resin impregnated resin drill traverse saturating, the viscosity controlling glue in unsaturated polyester resin impregnated resin groove is 1.5Pa.s;
Then yarn bundle by the section form required according to goods the guide die that configures;
Discharge unnecessary resin and bubble in guide die after, carry out three grades of continuous curing moldings of gradient-heated by entering horizontal core inner under the traction of extruder;
Concrete, three grades of continuous curing moldings of heating, by mould being separated into 3 cavitys, are realized by the different heating temperature controlling 3 cavitys; First concrete steps for regulate Heating temperature, and the temperature controlling the first chamber is 120 DEG C, and the Heating temperature controlling the second chamber is 140 DEG C, and the Heating temperature controlling the 3rd chamber is 130 DEG C.
Pull out after curing molding, controlling pull-out speed is 0.3m/min, finally forms the hollow slab of desired length.
The glass fiber reinforced plastic open-web plate of the present embodiment, the performance of performance and conventional hollow slab is as shown in the table:
The glass fiber reinforced plastic open-web plate of the present embodiment, by adopting three grades of methods heating continuous curing molding, the hollow slab tensile strength of production can reach 400Mpa, and tensile modulus can reach 30Gpa, and flexural strength is 500Mpa, and modulus in flexure is 24.8Gpa; There are very high applying value and market outlook.
Embodiment 2
On the basis of embodiment 1, change type of feed and the proportioning thereof of hollow slab, specifically comprise following material and mass percent thereof: the new penta 2 alcohols unsaturated polyester resins of 27% Nanjing DSM A408-972,55% alkali free glass fibre rove Tex4800, the composite felt comprising surperficial felt, continuous felt, stitch-bonded felt and axial cloth of 16% and 2% filling aluminium hydrate.
Produce according to the pultrusion method of embodiment 1, change the heating parameters of three grades of continuous curing moldings of heating, be specially: first concrete steps for regulate Heating temperature, the temperature controlling the first chamber is 140 DEG C, the Heating temperature controlling the second chamber is 170 DEG C, and the Heating temperature controlling the 3rd chamber is 150 DEG C.
The glass fiber reinforced plastic open-web plate of the present embodiment, by adopting three grades of methods heating continuous curing molding, the hollow slab tensile strength of production can reach 408Mpa, and tensile modulus can reach 28.6Gpa, and flexural strength is 510Mpa, and modulus in flexure is 25Gpa; There are very high applying value and market outlook.
Embodiment 3
On the basis of embodiment 1 or 2, adopt type of feed and the proportioning of embodiment 1 or 2, change the heating parameters of three grades of continuous curing moldings of heating, first concrete steps for regulate Heating temperature, the temperature controlling the first chamber is 130 DEG C, the Heating temperature controlling the second chamber is 150 DEG C, and the Heating temperature controlling the 3rd chamber is 140 DEG C.
The glass fiber reinforced plastic open-web plate of the present embodiment, by adopting three grades of methods heating continuous curing molding, the hollow slab tensile strength of production can reach 430Mpa, and tensile modulus can reach 29.3Gpa, and flexural strength is 512Mpa, and modulus in flexure is 24.5Gpa; There are very high applying value and market outlook.
Claims (7)
1. a glass fiber reinforced plastic open-web plate, comprise unsaturated polyester resin, strongthener woven glass roving fabric and surperficial felt and subsidiary material filler, it is characterized in that: specifically comprise following material and mass percent thereof: 23 ~ 27% unsaturated polyester resins, 55 ~ 58% alkali free glass fibre rove 4800Tex, 14 ~ 16% composite felt and 2 ~ 5% fillers.
2. glass fiber reinforced plastic open-web plate according to claim 1, is characterized in that: described composite felt comprises surperficial felt, continuous felt, stitch-bonded felt and axial cloth.
3. glass fiber reinforced plastic open-web plate according to claim 1, is characterized in that: described filler is aluminium hydroxide.
4. the pultrusion method of a glass fiber reinforced plastic open-web plate according to claim 1, it is characterized in that: concrete steps are: woven glass roving fabric yarn group is contained on creel, the yarn bundle of uncoiling, composite felt are respectively by after a series of guide roller, boundling screen and yarn collecting wheel, and it is saturating to enter unsaturated polyester resin impregnated resin drill traverse; Then yarn bundle by the section form required according to goods the guide die that configures; Discharge unnecessary resin and bubble in guide die after, carry out three grades of continuous curing moldings of gradient-heated by entering core rod inside under the traction of extruder; Pull out after shaping, controlling pull-out speed is 0.3 ~ 0.35m/min, finally forms the hollow slab of desired length again.
5. the pultrusion method of glass fiber reinforced plastic open-web plate according to claim 3, is characterized in that: described three grades of continuous curing moldings of heating, by mould being separated into 3 cavitys, are realized by the different heating temperature of control 3 cavitys successively; First concrete steps for regulate Heating temperature, and the temperature controlling the first chamber is respectively 120 ~ 140 DEG C, and the Heating temperature controlling the second chamber is 140 ~ 170 DEG C, and the Heating temperature controlling the 3rd chamber is 130 ~ 150 DEG C.
6. the pultrusion method of glass fiber reinforced plastic open-web plate according to claim 3, is characterized in that: in described unsaturated polyester resin impregnated resin groove, the viscosity controller of glue is 1.4 ~ 1.8Pa.s.
7. glass fiber reinforced plastic open-web plate according to claim 1 is applied to a sewage disposal, the field of public works, building aspect.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410556222.1A CN104387735A (en) | 2014-10-20 | 2014-10-20 | GRP open-web plate, as well as pultrusion method and application thereof |
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| CN201410556222.1A CN104387735A (en) | 2014-10-20 | 2014-10-20 | GRP open-web plate, as well as pultrusion method and application thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105140639A (en) * | 2015-09-17 | 2015-12-09 | 珠海国能新材料股份有限公司 | Glass fiber reinforced plastic radome and preparation method thereof |
| CN106009575A (en) * | 2016-05-19 | 2016-10-12 | 南京斯贝尔复合材料有限责任公司 | Glass reinforced plastic section material and preparation method thereof and cooling tower |
| CN108325751A (en) * | 2017-12-29 | 2018-07-27 | 浙江德创环保科技股份有限公司 | A kind of wet electrical dust precipitator FRP Wall and preparation method thereof |
| CN112339300A (en) * | 2020-10-19 | 2021-02-09 | 天长市蓝天复合材料有限公司 | Continuous molding method for multi-cavity hollow plate |
| CN112482678A (en) * | 2020-12-01 | 2021-03-12 | 南通德瑞森复合材料有限公司 | Glass fiber reinforced plastic stair sloping beam shaped like Chinese character' ri |
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| CN105140639A (en) * | 2015-09-17 | 2015-12-09 | 珠海国能新材料股份有限公司 | Glass fiber reinforced plastic radome and preparation method thereof |
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| CN108325751A (en) * | 2017-12-29 | 2018-07-27 | 浙江德创环保科技股份有限公司 | A kind of wet electrical dust precipitator FRP Wall and preparation method thereof |
| CN112339300A (en) * | 2020-10-19 | 2021-02-09 | 天长市蓝天复合材料有限公司 | Continuous molding method for multi-cavity hollow plate |
| CN112482678A (en) * | 2020-12-01 | 2021-03-12 | 南通德瑞森复合材料有限公司 | Glass fiber reinforced plastic stair sloping beam shaped like Chinese character' ri |
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Application publication date: 20150304 |