CN112339295A - Production process of FRP (fiber reinforced plastic) section - Google Patents
Production process of FRP (fiber reinforced plastic) section Download PDFInfo
- Publication number
- CN112339295A CN112339295A CN202011085625.4A CN202011085625A CN112339295A CN 112339295 A CN112339295 A CN 112339295A CN 202011085625 A CN202011085625 A CN 202011085625A CN 112339295 A CN112339295 A CN 112339295A
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- Prior art keywords
- frp
- curing
- powder
- glass fiber
- fiber
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/0005—Condition, form or state of moulded material or of the material to be shaped containing compounding ingredients
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/0005—Condition, form or state of moulded material or of the material to be shaped containing compounding ingredients
- B29K2105/0026—Flame proofing or flame retarding agents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
- B29K2105/0872—Prepregs
Abstract
The invention provides a production process of an FRP (fiber reinforced plastic) section, which comprises the following raw materials in percentage by mass: 38-42% of glass fiber yarn, 8-12% of fiber felt, 28-32% of unsaturated resin, 4-6% of stone powder, 4-6% of aluminum hydroxide, 2.5-3.5% of curing agent, 1.8-2.2% of release agent, 2.7-3.3% of PE powder and 1.8-2.2% of color paste, wherein the production process comprises the following steps: preparing an impregnating solution: mixing unsaturated resin, stone powder, a release agent, a curing agent, aluminum hydroxide, PE powder and color paste, uniformly stirring by using a stirrer, and introducing into a resin tank; infiltrating: drawing the glass fiber yarns and the fiber mats into a resin tank filled with impregnation liquid by using a drawing machine for full infiltration; preforming: the traction machine continuously draws the infiltrated glass fiber yarns and the fiber mat into a preforming device to obtain a primary formed product; heating and curing: continuously drawing the primary formed product by a tractor, entering a mould for heating and curing, and demolding after complete curing and forming to obtain an FRP section strip; a cutting device: and cutting the FRP section bar to obtain the required FRP section.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of FRP (fiber reinforced plastic) sections, in particular to a production process of an FRP section.
[ background of the invention ]
The FRP profile is a common composite material, and the traditional FRP profile has a series of advantages of light weight, high strength, corrosion resistance, good designability, excellent manufacturability and the like, and can be applied to a plurality of places such as mark piles, guardrails and the like.
The existing FRP profile has certain defects in flame resistance and weather resistance, and when the FRP profile is used as a mark pile or a guardrail, the FRP profile is mostly applied outdoors and needs to be subjected to weather tests for a long time, such as comprehensive damage caused by illumination, cold and hot, wind and rain, bacteria and the like, and the FRP profile is not long in service life due to insufficient weather resistance and is often required to be checked and replaced.
[ summary of the invention ]
The invention aims to provide a production process of an FRP (fiber reinforced plastic) section, which aims to overcome the technical problem that FRP has certain defects in flame resistance and weather resistance in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
the application discloses a production process of an FRP (fiber reinforced plastic) section, which comprises the following raw materials in percentage by mass: 38-42% of glass fiber yarn, 8-12% of fiber felt, 28-32% of unsaturated resin, 4-6% of stone powder, 4-6% of aluminum hydroxide, 2.5-3.5% of curing agent, 1.8-2.2% of release agent, 2.7-3.3% of PE powder and 1.8-2.2% of color paste, wherein the production process comprises the following steps:
a) preparing an impregnating solution: mixing unsaturated resin, stone powder, a release agent, a curing agent, aluminum hydroxide, PE powder and color paste, uniformly stirring by using a stirrer, and introducing into a resin tank;
b) infiltrating: drawing the glass fiber yarns and the fiber mats into a resin tank filled with impregnation liquid by using a drawing machine for full infiltration;
c) preforming: the traction machine continuously draws the infiltrated glass fiber yarns and the fiber mat into a preforming device to obtain a primary formed product;
d) heating and curing: continuously drawing the primary formed product by a drawing machine, heating and curing the product in a mold, and demolding the product after the product is completely cured and formed to obtain an FRP section strip;
e) a cutting device: and cutting the FRP section strip according to specific requirements to obtain the required FRP section.
Preferably, the stirring time of the stirrer in the step a) is 20-30 minutes.
Preferably, the traction speed of the tractor is 30-40 cm per minute.
Preferably, the curing temperature in the step d) is divided into three intervals, the temperature in the first interval is 65-75 ℃, the temperature in the second interval is 110-120 ℃, and the temperature in the third interval is 130-135 ℃.
Preferably, the mass fractions of the raw materials of the components are as follows: 40% of glass fiber yarn, 10% of fiber felt, 30% of resin, 5% of stone powder, 5% of aluminum hydroxide, 3% of curing agent, 2% of release agent, 3% of PE powder and 2% of color paste.
Preferably, the length of the cut FRP section is 0.5-1.5 m.
The invention has the beneficial effects that:
(1) aluminum hydroxide is added into the raw materials, and the mass fractions of the components in the raw materials are determined, so that the flame retardance and the weather resistance of the product are improved, and the service life of the product is prolonged;
(2) the PE powder is added into the raw materials, and the mass fractions of the components in the raw materials are determined, so that the smoothness and the attractiveness of the surface of a product are improved;
(3) when the product is heated and cured, the curing temperature is divided into three intervals, and the temperature is gradually increased, so that the curing and molding efficiency of the product is improved.
The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.
[ description of the drawings ]
FIG. 1 is a process flow diagram of the production process of an FRP profile of the invention;
[ detailed description ] embodiments
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
The first embodiment is as follows:
referring to fig. 1, 40% of glass fiber yarn, 10% of fiber mat, 30% of resin, 5% of stone powder, 5% of aluminum hydroxide, 3% of curing agent, 2% of mold release agent, 3% of PE powder and 2% of color paste are taken; preparing an impregnating solution: mixing unsaturated resin, stone powder, a release agent, a curing agent, aluminum hydroxide, PE powder and color paste, stirring for 20-30 minutes by using a stirrer, and introducing into a resin tank; infiltrating: drawing the glass fiber yarns and the fiber mats into a resin tank filled with impregnation liquid by using a drawing machine for full infiltration; preforming: the traction machine continuously draws the infiltrated glass fiber yarns and the fiber mat into a preforming device to obtain a primary formed product; heating and curing: continuously drawing the primary formed product by a drawing machine, entering a mould for heating and curing, wherein the curing temperature is divided into three intervals, the temperature of the first interval is 70 ℃, the temperature of the second interval is 115 ℃, and the temperature of the third interval is 135 ℃ until the product is completely cured and formed, and then demolding to obtain an FRP section strip; a cutting device: cutting the FRP section strip to obtain an FRP section with the length of 1 m; the traction speed of the traction machine in the steps is 30cm per minute.
Example two:
taking 38% of glass fiber yarn, 12% of fiber mat, 28% of resin, 6% of stone powder, 6% of aluminum hydroxide, 2.5% of curing agent, 2.2% of release agent, 2.7% of PE powder and 2.2% of color paste; preparing an impregnating solution: mixing unsaturated resin, stone powder, a release agent, a curing agent, aluminum hydroxide, PE powder and color paste, stirring for 20-30 minutes by using a stirrer, and introducing into a resin tank; infiltrating: drawing the glass fiber yarns and the fiber mats into a resin tank filled with impregnation liquid by using a drawing machine for full infiltration; preforming: the traction machine continuously draws the infiltrated glass fiber yarns and the fiber mat into a preforming device to obtain a primary formed product; heating and curing: continuously drawing the primary formed product by a drawing machine, entering a mould for heating and curing, wherein the curing temperature is divided into three intervals, the temperature of the first interval is 70 ℃, the temperature of the second interval is 115 ℃, and the temperature of the third interval is 135 ℃ until the product is completely cured and formed, and then demolding to obtain an FRP section strip; a cutting device: cutting the FRP section strip to obtain an FRP section with the length of 1 m; the traction speed of the traction machine in the steps is 30cm per minute.
Example three:
taking 42% of glass fiber yarn, 8% of fiber felt, 32% of resin, 4% of stone powder, 4% of aluminum hydroxide, 3.5% of curing agent, 1.8% of release agent, 3.3% of PE powder and 1.8% of color paste; preparing an impregnating solution: mixing unsaturated resin, stone powder, a release agent, a curing agent, aluminum hydroxide, PE powder and color paste, stirring for 20-30 minutes by using a stirrer, and introducing into a resin tank; infiltrating: drawing the glass fiber yarns and the fiber mats into a resin tank filled with impregnation liquid by using a drawing machine for full infiltration; preforming: the traction machine continuously draws the infiltrated glass fiber yarns and the fiber mat into a preforming device to obtain a primary formed product; heating and curing: continuously drawing the primary formed product by a drawing machine, entering a mould for heating and curing, wherein the curing temperature is divided into three intervals, the temperature of the first interval is 70 ℃, the temperature of the second interval is 115 ℃, and the temperature of the third interval is 135 ℃ until the product is completely cured and formed, and then demolding to obtain an FRP section strip; a cutting device: cutting the FRP section strip to obtain an FRP section with the length of 1 m; the traction speed of the traction machine in the steps is 30cm per minute.
The three embodiments of products are detected by the national chemical building material quality supervision and detection center to obtain the product with the oxygen index of 28.7 or above, the flame retardant property is greatly improved compared with the existing common FRP sectional material, the axial tensile strength is 365Mpa or above in the detection data, the axial bending strength is 680Mpa, and the strength is improved and the weather resistance is improved compared with the existing common FRP sectional material.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents or improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (6)
1. A production process of FRP profiles is characterized in that: the mass fraction of each component of raw materials is as follows: 38-42% of glass fiber yarn, 8-12% of fiber felt, 28-32% of unsaturated resin, 4-6% of stone powder, 4-6% of aluminum hydroxide, 2.5-3.5% of curing agent, 1.8-2.2% of release agent, 2.7-3.3% of PE powder and 1.8-2.2% of color paste, wherein the production process comprises the following steps:
a) preparing an impregnating solution: mixing unsaturated resin, stone powder, a release agent, a curing agent, aluminum hydroxide, PE powder and color paste, uniformly stirring by using a stirrer, and introducing into a resin tank;
b) infiltrating: drawing the glass fiber yarns and the fiber mats into a resin tank filled with impregnation liquid by using a drawing machine for full infiltration;
c) preforming: the traction machine continuously draws the infiltrated glass fiber yarns and the fiber mat into a preforming device to obtain a primary formed product;
d) heating and curing: continuously drawing the primary formed product by a drawing machine, heating and curing the product in a mold, and demolding the product after the product is completely cured and formed to obtain an FRP section strip;
e) a cutting device: and cutting the FRP section strip according to specific requirements to obtain the required FRP section.
2. The process for producing FRP profiles as claimed in claim 1, wherein: the stirring time of the stirrer in the step a) is 20-30 minutes.
3. The process for producing FRP profiles as claimed in claim 1, wherein: the traction speed of the tractor is 30-40 cm per minute.
4. The process for producing FRP profiles as claimed in claim 1, wherein: the curing temperature in the step d) is divided into three intervals, wherein the temperature in the first interval is 65-75 ℃, the temperature in the second interval is 110-120 ℃, and the temperature in the third interval is 130-135 ℃.
5. The process for producing FRP profiles as claimed in claim 1, wherein: the mass fraction of each component of raw materials is as follows: 40% of glass fiber yarn, 10% of fiber felt, 30% of resin, 5% of stone powder, 5% of aluminum hydroxide, 3% of curing agent, 2% of release agent, 3% of PE powder and 2% of color paste.
6. The process for producing FRP profiles as claimed in claim 1, wherein: the length of the cut FRP section is 0.5-1.5 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011085625.4A CN112339295A (en) | 2020-10-12 | 2020-10-12 | Production process of FRP (fiber reinforced plastic) section |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011085625.4A CN112339295A (en) | 2020-10-12 | 2020-10-12 | Production process of FRP (fiber reinforced plastic) section |
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| CN112339295A true CN112339295A (en) | 2021-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011085625.4A Pending CN112339295A (en) | 2020-10-12 | 2020-10-12 | Production process of FRP (fiber reinforced plastic) section |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114163782A (en) * | 2022-01-14 | 2022-03-11 | 东莞市华创碳纤维科技有限公司 | Formula of corrosion-resistant glass fiber for manufacturing handle |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104893142A (en) * | 2015-05-19 | 2015-09-09 | 威海和光新材料科技有限公司 | An environmental friendly energy-saving recycled building template and a manufacturing method thereof |
| CN109648953A (en) * | 2019-02-28 | 2019-04-19 | 晶辰（淄博）环保科技有限公司 | Conductive fire-retardant anode tube and preparation method thereof |
-
2020
- 2020-10-12 CN CN202011085625.4A patent/CN112339295A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104893142A (en) * | 2015-05-19 | 2015-09-09 | 威海和光新材料科技有限公司 | An environmental friendly energy-saving recycled building template and a manufacturing method thereof |
| CN109648953A (en) * | 2019-02-28 | 2019-04-19 | 晶辰（淄博）环保科技有限公司 | Conductive fire-retardant anode tube and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114163782A (en) * | 2022-01-14 | 2022-03-11 | 东莞市华创碳纤维科技有限公司 | Formula of corrosion-resistant glass fiber for manufacturing handle |
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Application publication date: 20210209 |
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