CN112724608A - Bisphenol A type SMC (sheet molding compound) molding resin composition and preparation method thereof - Google Patents
Bisphenol A type SMC (sheet molding compound) molding resin composition and preparation method thereof Download PDFInfo
- Publication number
- CN112724608A CN112724608A CN202110122433.4A CN202110122433A CN112724608A CN 112724608 A CN112724608 A CN 112724608A CN 202110122433 A CN202110122433 A CN 202110122433A CN 112724608 A CN112724608 A CN 112724608A
- Authority
- CN
- China
- Prior art keywords
- bisphenol
- resin composition
- parts
- filler
- resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K2003/023—Silicon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Macromonomer-Based Addition Polymer (AREA)
- Reinforced Plastic Materials (AREA)
Abstract
The invention belongs to the technical field of SMC (sheet molding compound) molding, and particularly relates to a bisphenol A type SMC molding resin composition. The composition comprises bisphenol A polyester resin, a low shrinkage auxiliary agent, a curing agent, a release agent, a filler, fibers and a stripping agent; wherein, calculated according to the weight portion, the bisphenol A type polyester resin is 18 to 23 portions; the low-shrinkage auxiliary agent comprises 5-8 parts of low-shrinkage resin; the curing agent comprises 0.2 to 0.5 part of tert-butyl perbenzoate; the release agent comprises 0.5 to 1.5 parts of zinc stearate and 0.005 to 0.035 parts of oil ester; 20 to 40 parts of filler, 25 to 55 parts of fiber and 0.1 to 0.3 part of stripping agent. The novel resin composition is formed by taking common manually-pasted bisphenol A resin as a matrix and adding other components, and when SMC is molded, the novel resin composition is uniform in curing, smooth in demolding and regular in forming, and the product has the characteristics of strong acid and alkali corrosion resistance, high mechanical strength, high temperature resistance and flame retardance.
Description
Technical Field
The invention belongs to the technical field of SMC (sheet molding compound) molding, and particularly relates to a bisphenol A type SMC molding resin composition.
Background
SMC, a sheet molding compound, is a type of sheet molding compound made by impregnating a fiber or chopped strand mat with a resin paste and covering both sides with polyethylene films. The SMC mould pressing resin paste is one of the most widely applied forming materials in the world at present, the unsaturated polyester resin special for mould pressing, a thickening agent, an initiator, a cross-linking agent, a low-shrinkage additive, a filler, an internal release agent, a coloring agent and the like are generally mixed to form the SMC mould pressing resin paste, and the resin paste is impregnated into the chopped fiber roving or the glass fiber felt which can be directly used for an SMC mould pressing forming process.
As most of the resin composition is prefabricated specific raw materials, a molding processing enterprise needs to buy the resin composition separately and cannot improve the component proportion according to the actual production situation, so that the universality of the resin composition is poor, the production cost of the enterprise is improved, and the technological innovation progress is limited. The resin raw materials used by the existing glass fiber reinforced plastic production enterprises have wide acquisition channels and low cost, but can not be directly used in the SMC mould pressing process. For example, when the conventional bisphenol a type polyester resin raw material is directly used for mould pressing, the problems of violent curing reaction, cracking, rough surface, poor forming quality, difficult sticking and demoulding, incomplete separation from an OPE bearing film and the like are easy to occur.
Therefore, the domestic SMC compression molding process needs to select SMC special molding resin, and a resin manufacturer adjusts the formula according to the requirements of the molding process and performs and produces specific resin raw materials. In the practical application, the SMC glass fiber reinforced plastic product can meet the requirement of common slight acid and alkali corrosion resistance, but cannot be used for manufacturing strong acid and alkali resistance and high-temperature mould pressing products, however, in the industries of chemical pharmacy, metallurgy and the like, the strong acid and alkali resistance and high-temperature mould pressing glass fiber reinforced plastic product is required to be used in production equipment of the SMC glass fiber reinforced plastic product, and because the usage amount is very small, a resin manufacturer does not have a corresponding model and provides the SMC glass fiber reinforced.
Disclosure of Invention
The invention aims to provide a novel resin composition which is formed by taking common manually-pasted bisphenol A resin as a matrix and adding other formula components, and has the characteristics of uniform curing, smooth demoulding, regular forming, strong acid and alkali corrosion resistance, high mechanical strength, high temperature resistance, flame retardance and the like during SMC mould pressing.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a bisphenol a SMC molding resin composition characterized by comprising the following components: bisphenol A polyester resin, a low shrinkage auxiliary agent, a curing agent, a release agent, a filler, fibers and a stripping agent;
wherein, calculated according to the weight portion, the bisphenol A type polyester resin is 18 to 23 portions; the low-shrinkage auxiliary agent comprises 5-8 parts of low-shrinkage resin; the curing agent comprises 0.2 to 0.5 part of tert-butyl perbenzoate; the release agent comprises 0.5 to 1.5 parts of zinc stearate and 0.005 to 0.035 parts of oil ester; 20 to 40 parts of filler, 25 to 55 parts of fiber and 0.1 to 0.3 part of stripping agent.
Additional features of the bisphenol A SMC molding resin composition comprising the above further include:
-further comprising an accelerator comprising 0.001 to 0.004 parts cobalt naphthenate;
-the bisphenol a type polyester resin is bisphenol a type 3301 resin and the low shrinkage resin is a low shrinkage unsaturated polyester resin;
-the filler comprises aluminium hydroxide, nano-silicon particles and/or calcium carbonate, wherein the particle size of the calcium carbonate is not less than 600 mesh and the particle size of the aluminium hydroxide is not less than 400 mesh;
-the fibres are alkali-free untwisted rovings.
The invention also provides a method for preparing the resin composition, which is characterized in that the first step is to weigh and take materials, and weigh the bisphenol A type SMC mould pressing resin group according to the weight proportion
The various components of the composition;
stirring and mixing, sequentially adding bisphenol A type polyester resin, low-shrinkage resin and tert-butyl perbenzoate into a stirrer, and stirring for 1-4 minutes at the stirring revolution of 400-900 r/min; then adding grease, zinc stearate, cobalt naphthenate, a filler and magnesium oxide at intervals within 1-6 minutes to obtain a mixture;
and step three, sending the mixture obtained in the step two into a sheet machine, adding fibers, and manufacturing a sheet.
-in step two, the filler is added to the stirrer in two portions, the filler accounting for 5 to 20 percent of the total amount of the filler is added before the cobalt naphthenate is added, and the rest of the filler is added after the cobalt naphthenate is added;
in order to color the resin composition and meet the appearance requirement of SMC mould pressing finished products, the filler is added in two times, and a small amount of the filler added in the early stage enables the color paste to be uniformly dispersed in the stirring process.
Compared with the prior art, the bisphenol A type SMC molding resin composition provided by the invention has the following advantages: firstly, the resin composition takes bisphenol A type polyester resin as a matrix, and an SMC sheet is formed by matching components such as a low shrinkage auxiliary agent, a curing agent, a release agent, a filler, a fiber, a stripping agent and the like, and a glass reinforced plastic molded product made of the sheet has multiple application fields, can resist corrosion of various strong acids and strong bases and has excellent high-temperature resistance and flame retardance; secondly, the resin composition used in the SMC die pressing process is only a general hand-pasted bisphenol A type resin in the market, the material is convenient to obtain, the cost is low, no special resin needs to be ordered from a resin manufacturer, and the die pressing product has stronger strong acid-base corrosion resistance and high-temperature resistance and flame retardance compared with products made of common hand-pasted glass fiber reinforced plastic products and common SMC die pressing special resin, the mechanical strength is obviously enhanced, the service life is prolonged, and the manufacturing cost is obviously reduced; thirdly, compared with the common SMC special resin, the low-shrinkage resin in the component of the novel bisphenol A type SMC molding resin composition is increased to 10-15 percent of the addition amount on the basis of the special molding resin so as to reduce the shrinkage performance of the bisphenol A type polyester resin, reduce the resin activity, prevent the shrinkage cracking phenomenon and prevent incomplete and insufficient curing; the tert-butyl perbenzoate in the components is reduced by 10 to 20 percent on the basis of special mould pressing resin, so that the excessively violent molecular crosslinking reaction caused by the tert-butyl perbenzoate is avoided, the curing reaction is alleviated, and the shrinkage and cracking of the product caused by rapid curing are prevented; the curing and forming time is prolonged, so that the bisphenol A polyester resin can be cured symmetrically under the high-temperature condition of SMC mould pressing, the surface forming is regular, and the smoothness is good; in the components, stearic acid is increased by 1-1.5 times on the basis of special mould pressing resin, zinc stearate quickly forms a separation membrane between a sheet and a mould in a high-temperature state during curing, so that a mould pressing product can be smoothly demoulded, a small amount of grease (lubricating oil, salad oil and hydraulic oil) is added into the resin, about 0.1kg of grease is added into every hundred kg of resin, so that the grease is quickly overflowed to the periphery of the sheet during high-temperature curing, a lubricating effect is realized between the mould and the sheet, the mould sticking phenomenon is prevented, and the smooth demoulding of a pressed product is assisted; the filler in the components is reduced by 30 percent on the basis of special mould pressing resin, the toughness and the corrosion resistance of the product are improved on the premise of keeping the hardness of the product, meanwhile, the adding amount of the fiber is increased by about 60 to 80 percent on the basis of the special mould pressing resin, the mechanical strength, the tensile strength and the high-temperature resistant flame retardant property of the product are improved, the inherent shrinkage property of the bisphenol A type polyester resin is reduced by matching the filler and the special mould pressing resin, and the mechanical strength and the strong acid-base corrosion resistance of the bisphenol A type SMC mould pressing product are ensured; magnesium oxide in the components is increased by 25-30% on the basis of special mould pressing resin, the viscosity of the sheet is improved, and an OPE bearing film and the sheet are easy to peel; particularly, a small amount of cobalt naphthenate (0.1 kg of cobalt naphthenate is added per hundred kg of resin) is added into the components, so that the sheet is fully cured, and the curing and forming efficiency is improved.
Drawings
FIG. 1 is a table showing the corrosion resistance test of a molded article made of a bisphenol A type SMC molding resin composition of the present invention.
Detailed Description
The preparation of a bisphenol A SMC molding resin composition according to the invention is described in detail by the following examples
Example one
Weighing raw material components according to parts by weight, wherein the raw material components comprise 20.7 parts of bisphenol A3301 resin, 6.6 parts of low-shrinkage unsaturated polyester resin, 0.34 part of tert-butyl perbenzoate, 0.94 part of zinc stearate, 0.018 part of oil ester, 34.22 parts of filler (the particle size of calcium carbonate powder is 600 meshes), 36.96 parts of fiber (alkali-free twistless roving 2400), 0.22 part of magnesium oxide and 0.002 part of cobalt naphthenate;
sequentially adding bisphenol A3301 resin, low-shrinkage unsaturated polyester resin and tert-butyl perbenzoate into a stirrer, and stirring at a stirring speed of 500r/min for 2 minutes;
adding grease, and stirring for 3 minutes;
adding zinc stearate, and stirring for 2 minutes;
adding 10% of the filler, stirring for 1 minute, adding cobalt naphthenate, stirring, increasing the stirring speed to 600r/min, and stirring for 1 minute;
adding color paste, and stirring for 2 minutes;
adding the rest of the filler, adjusting the stirring speed to 800-900r/min, and stirring for 5 minutes;
feeding the obtained mixture into a sheet machine, adding fibers, and manufacturing a sheet;
in the actual production, the content of the fiber in the sheet is controlled to be 37 percent, the sheet is sealed by a sealing film, and the sheet is sent into a constant temperature room at 40 ℃ for 36 hours and then taken out for standby;
example two
Different from the first embodiment, 18.6 parts of bisphenol A type 3301 resin, 5.3 parts of low-shrinkage unsaturated polyester resin, 0.48 part of tert-butyl perbenzoate, 1.5 parts of zinc stearate, 0.009 parts of oil ester, 26.5 parts of filler (the grain diameter of aluminum hydroxide is 400 meshes), 27.8 parts of fiber, 0.15 part of magnesium oxide and 0.0026 part of cobalt naphthenate;
EXAMPLE III
Different from the first embodiment, 22.7 parts of bisphenol A type 3301 resin, 7.3 parts of low-shrinkage unsaturated polyester resin, 0.2 part of tert-butyl perbenzoate, 0.6 part of zinc stearate, 0.022 part of oil ester, 37.9 parts of filler (calcium carbonate powder with the particle size of 800 meshes), 46.5 parts of fiber, 0.27 part of magnesium oxide and 0.0014 part of cobalt naphthenate;
example four
Different from the first embodiment, 20.5 parts of bisphenol A type 3301 resin, 5 parts of low-shrinkage unsaturated polyester resin, 0.29 part of tert-butyl perbenzoate, 1.1 parts of zinc stearate, 0.022 part of oil ester, 24.6 parts of filler (the grain diameter of aluminum hydroxide is 500 meshes), 53.5 parts of fiber, 0.27 part of magnesium oxide and 0.0013 part of cobalt naphthenate;
the resin composition obtained in the above embodiment is subjected to SMC mould pressing manufacturing, and a sheet machine, a hydraulic press and a product mould used are basically the same as the conventional equipment, except that the product mould is preferably subjected to chromium plating treatment so as to improve the demoulding efficiency and quality;
the novel resin composition differs from the usual processing parameters in that:
the power of the hydraulic press is about 50 percent, for example, 500T pressure is needed when a product is pressed by using common SMC molding resin, and 750T pressure is needed when the same size product is pressed by using bisphenol A3301# resin;
the temperature of the molded product is about 20 ℃ lower, for example, 150 ℃ is needed when the common SMC molding resin is used for molding a product, and 130 ℃ is needed when the bisphenol A3301# resin is replaced for molding the product with the same size;
the compression molding time is prolonged by about 50 percent, for example, 3 minutes is needed for pressing a product by using common SMC molding resin, and 4.5 to 5 minutes is needed for pressing the product with the same size by replacing bisphenol A3301# resin;
the product formed by the SMC die pressing process is subjected to performance test, a finished product is obtained by pressing 100kg of sheet material on a hydraulic press, an acid-base corrosion resistance test, a flame retardant test and a mechanical strength test are carried out on the finished product, the finished product is used in glass fiber reinforced plastic acid-base resistance equipment and is subjected to practical application test, no quality problem occurs within 2 years of use, and the corrosion resistance reaches the corrosion resistance listed in a corrosion resistance table of the hand-lay bisphenol A type resin, as shown in figure 1;
specific flame retardant tests: the sheet material of SMC sheet suppression of making with this patent bisphenol A type resin is under oxygen acetylene cutting gun, carries out high temperature cutting 16 seconds with 2000 supple 3500 ℃ acetylene cutting flame to a fixed point on the finished sheet material of 8mm thick, and under the high temperature high pressure air current impact, 3mm deep pit has appeared in the sheet material cutting point, and the back colour of sheet material and hardness state do not discover the change, and the flame that high temperature arouses is 9 seconds flame extinguishes after the cutting gun leaves.
The flame retardant rating is superior to that of plastic through testing: v-0, after the sample is subjected to combustion test for 10 seconds twice, the flame is extinguished within 30 seconds, and no combustion object falls;
fireproof thermal insulation material B1 grade: the flame-retardant material has a good flame-retardant effect, is difficult to ignite in the air or under the action of high temperature, is not easy to spread quickly, and stops burning immediately after the fire source is removed.
Specific strength test: a flat strip which is 8mm thick, 1000mm long and 100mm wide and is pressed by an SMC sheet made of bisphenol A type resin is horizontally placed between two supports which are 100mm high and 400mm apart, then a load of 80-100kg is used for placing the flat strip on the upper part of the flat strip, the lifting height is 50-100cm, the pressing impact is continuously carried out for 10-20 times, the flat strip is not broken, and the pressure point sinks for 15-25 mm. After the load is removed, the flat plate is quickly restored to the original shape, the back surface has no cracks or damages, and the normal use is not influenced.
Claims (7)
1. A bisphenol a SMC molding resin composition characterized by comprising the following components: bisphenol A polyester resin, a low shrinkage auxiliary agent, a curing agent, a release agent, a filler, fibers and a stripping agent;
wherein, calculated according to the weight portion, the bisphenol A type polyester resin is 18 to 23 portions; the low-shrinkage auxiliary agent comprises 5-8 parts of low-shrinkage resin; the curing agent comprises 0.2 to 0.5 part of tert-butyl perbenzoate; the release agent comprises 0.5 to 1.5 parts of zinc stearate and 0.005 to 0.035 parts of oil ester; 20 to 40 parts of filler, 25 to 55 parts of fiber and 0.1 to 0.3 part of stripping agent.
2. A bisphenol a SMC molding resin composition as in claim 1 wherein: also comprises an accelerant which comprises 0.001 to 0.004 parts of cobalt naphthenate.
3. A bisphenol a SMC molding resin composition as in claim 1 wherein: the bisphenol A type polyester resin is hand-pasted common bisphenol A type 3301 resin, and the low-shrinkage resin is low-shrinkage unsaturated polyester resin.
4. A bisphenol a SMC molding resin composition as in claim 1 wherein: the filler comprises aluminum hydroxide, nano silicon particles and/or calcium carbonate, wherein the granularity of the calcium carbonate is not less than 600 meshes, and the granularity of the aluminum hydroxide is not less than 400 meshes.
5. A bisphenol a SMC molding resin composition as in claim 1 wherein: the fibers are alkali-free untwisted rovings.
6. A method for preparing a bisphenol A type SMC molding resin composition is characterized in that: for the preparation of the bisphenol A SMC molding resin composition of claims 1 to 5,
weighing and taking materials, namely weighing various components of the bisphenol A type SMC mould pressing resin composition according to the weight part ratio;
stirring and mixing, sequentially adding bisphenol A type polyester resin, low-shrinkage resin and tert-butyl perbenzoate into a stirrer, and stirring for 1-4 minutes at the stirring revolution of 400-900 r/min; then adding grease, zinc stearate, cobalt naphthenate, a filler and magnesium oxide at intervals within 1-6 minutes to obtain a mixture;
and step three, sending the mixture obtained in the step two into a sheet machine, adding fibers, and manufacturing a sheet.
7. A process for preparing a bisphenol A SMC molding resin composition as claimed in claim 6, wherein: in the second step, the filler is added into the stirrer in two times, the filler accounting for 5 to 20 percent of the total amount of the filler is added before the cobalt naphthenate is added, and the rest of the filler is added after the cobalt naphthenate is added.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110122433.4A CN112724608A (en) | 2021-01-29 | 2021-01-29 | Bisphenol A type SMC (sheet molding compound) molding resin composition and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110122433.4A CN112724608A (en) | 2021-01-29 | 2021-01-29 | Bisphenol A type SMC (sheet molding compound) molding resin composition and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112724608A true CN112724608A (en) | 2021-04-30 |
Family
ID=75594472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110122433.4A Pending CN112724608A (en) | 2021-01-29 | 2021-01-29 | Bisphenol A type SMC (sheet molding compound) molding resin composition and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112724608A (en) |
Citations (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4327145A (en) * | 1979-10-22 | 1982-04-27 | Dainippon Inc. & Chemicals, Inc. | Process for producing sheet molding compound |
| JPH06134783A (en) * | 1992-10-29 | 1994-05-17 | Sekisui Chem Co Ltd | Manufacture of molding |
| JPH06256721A (en) * | 1993-03-10 | 1994-09-13 | Sekisui Chem Co Ltd | Production of coating resin composition for coating molding in mold |
| JPH08176422A (en) * | 1994-12-21 | 1996-07-09 | Sekisui Chem Co Ltd | Fiber-reinforced resin composition and production of fiber-reinforced resin molding |
| JPH08174759A (en) * | 1994-12-27 | 1996-07-09 | Mitsui Toatsu Chem Inc | Composite plate of sheet molding compound and zinc plate |
| JPH08176313A (en) * | 1994-12-27 | 1996-07-09 | Mitsubishi Plastics Ind Ltd | Sheet molding compound and smc molded product |
| JPH09263691A (en) * | 1996-03-29 | 1997-10-07 | Sekisui Chem Co Ltd | Unsaturated polyester resin composition and production of molding |
| JPH11147221A (en) * | 1997-11-18 | 1999-06-02 | Dainippon Ink & Chem Inc | Thick wall sheet molding compound and its molded product |
| JPH11181252A (en) * | 1997-12-18 | 1999-07-06 | Hitachi Chem Co Ltd | Decorative molded product |
| US20020016420A1 (en) * | 2000-01-18 | 2002-02-07 | Zarnoch Kenneth Paul | Curable resin composition, method for the preparation thereof, and articles derived therefrom |
| JP2004269573A (en) * | 2003-03-05 | 2004-09-30 | Showa Highpolymer Co Ltd | Sheet molding compound |
| CN101088754A (en) * | 2007-07-10 | 2007-12-19 | 武汉理工大学 | Molded epoxy resin sheet and its prepn process |
| JP2011153197A (en) * | 2010-01-26 | 2011-08-11 | Panasonic Electric Works Co Ltd | Unsaturated polyester resin composition and fiber-reinforced plastic molded product |
| JP2011231275A (en) * | 2010-04-30 | 2011-11-17 | Toyota Motor Corp | Sheet molding compound |
| CN104231584A (en) * | 2014-09-25 | 2014-12-24 | 扬州万盛实业有限公司 | Low-shrinkage medium-temperature-cured high-efficiency flame-retardant unsaturated polyester fiberglass reinforced plastic board and preparation method thereof |
| CN105482399A (en) * | 2015-11-27 | 2016-04-13 | 四川迪弗电工科技有限公司 | Unsaturated polyester resin fiber reinforced sheet-shape molding compound and preparation method thereof |
| CN105504695A (en) * | 2016-02-01 | 2016-04-20 | 四川远鸣科技有限公司 | High-strength high-mold corrosion-resistant vinyl ester resin SMC sheet molding compound and preparation method thereof |
| JP2016124102A (en) * | 2014-12-26 | 2016-07-11 | 三菱レイヨン株式会社 | Sheet molding compound and composite material obtained using the same |
| JP2019218445A (en) * | 2018-06-19 | 2019-12-26 | 東レ株式会社 | Sheet molding compound and fiber reinforced composite material |
| CN111793326A (en) * | 2020-06-29 | 2020-10-20 | 河南东海复合材料有限公司 | Production process of epoxy glass fiber-based ESMC sheet |
| CN112094483A (en) * | 2020-09-21 | 2020-12-18 | 无锡新宏泰电器科技股份有限公司 | Thermosetting sheet molding compound and preparation method thereof |
-
2021
- 2021-01-29 CN CN202110122433.4A patent/CN112724608A/en active Pending
Patent Citations (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4327145A (en) * | 1979-10-22 | 1982-04-27 | Dainippon Inc. & Chemicals, Inc. | Process for producing sheet molding compound |
| JPH06134783A (en) * | 1992-10-29 | 1994-05-17 | Sekisui Chem Co Ltd | Manufacture of molding |
| JPH06256721A (en) * | 1993-03-10 | 1994-09-13 | Sekisui Chem Co Ltd | Production of coating resin composition for coating molding in mold |
| JPH08176422A (en) * | 1994-12-21 | 1996-07-09 | Sekisui Chem Co Ltd | Fiber-reinforced resin composition and production of fiber-reinforced resin molding |
| JPH08174759A (en) * | 1994-12-27 | 1996-07-09 | Mitsui Toatsu Chem Inc | Composite plate of sheet molding compound and zinc plate |
| JPH08176313A (en) * | 1994-12-27 | 1996-07-09 | Mitsubishi Plastics Ind Ltd | Sheet molding compound and smc molded product |
| JPH09263691A (en) * | 1996-03-29 | 1997-10-07 | Sekisui Chem Co Ltd | Unsaturated polyester resin composition and production of molding |
| JPH11147221A (en) * | 1997-11-18 | 1999-06-02 | Dainippon Ink & Chem Inc | Thick wall sheet molding compound and its molded product |
| JPH11181252A (en) * | 1997-12-18 | 1999-07-06 | Hitachi Chem Co Ltd | Decorative molded product |
| CN1364184A (en) * | 2000-01-18 | 2002-08-14 | 通用电气公司 | Curable resin composition, preparation thereof, and articles derived therefrom |
| US20020016420A1 (en) * | 2000-01-18 | 2002-02-07 | Zarnoch Kenneth Paul | Curable resin composition, method for the preparation thereof, and articles derived therefrom |
| JP2004269573A (en) * | 2003-03-05 | 2004-09-30 | Showa Highpolymer Co Ltd | Sheet molding compound |
| CN101088754A (en) * | 2007-07-10 | 2007-12-19 | 武汉理工大学 | Molded epoxy resin sheet and its prepn process |
| JP2011153197A (en) * | 2010-01-26 | 2011-08-11 | Panasonic Electric Works Co Ltd | Unsaturated polyester resin composition and fiber-reinforced plastic molded product |
| JP2011231275A (en) * | 2010-04-30 | 2011-11-17 | Toyota Motor Corp | Sheet molding compound |
| CN104231584A (en) * | 2014-09-25 | 2014-12-24 | 扬州万盛实业有限公司 | Low-shrinkage medium-temperature-cured high-efficiency flame-retardant unsaturated polyester fiberglass reinforced plastic board and preparation method thereof |
| JP2016124102A (en) * | 2014-12-26 | 2016-07-11 | 三菱レイヨン株式会社 | Sheet molding compound and composite material obtained using the same |
| CN105482399A (en) * | 2015-11-27 | 2016-04-13 | 四川迪弗电工科技有限公司 | Unsaturated polyester resin fiber reinforced sheet-shape molding compound and preparation method thereof |
| CN105504695A (en) * | 2016-02-01 | 2016-04-20 | 四川远鸣科技有限公司 | High-strength high-mold corrosion-resistant vinyl ester resin SMC sheet molding compound and preparation method thereof |
| JP2019218445A (en) * | 2018-06-19 | 2019-12-26 | 東レ株式会社 | Sheet molding compound and fiber reinforced composite material |
| CN111793326A (en) * | 2020-06-29 | 2020-10-20 | 河南东海复合材料有限公司 | Production process of epoxy glass fiber-based ESMC sheet |
| CN112094483A (en) * | 2020-09-21 | 2020-12-18 | 无锡新宏泰电器科技股份有限公司 | Thermosetting sheet molding compound and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 吴世敏等: "《简明精细化工大辞典》", 30 June 1999, 辽宁科学技术出版社 * |
| 谢圣英等: "《塑料材料》", 31 January 2010, 中国轻工业出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1263903A (en) | Sealing elastomer material reinforced by non-asbestos fibres and technology for compressing it into plates | |
| CN1760267A (en) | Technique and equipment for fabricating plastic sheet material produced from molding laminar die in low pressure | |
| CN110791071A (en) | High-strength composite material storage battery cover and preparation method thereof | |
| CN110885544A (en) | Resin paste for prepreg, prepreg and preparation method and application thereof | |
| CN113954245A (en) | Soft porcelain material formed by pressing and preparation method thereof | |
| CN102675700B (en) | Environment-friendly oil-resistant damping shock absorption and flame-retardant gasket material for motor unit train | |
| CN112724608A (en) | Bisphenol A type SMC (sheet molding compound) molding resin composition and preparation method thereof | |
| CN108859302B (en) | A2-grade fireproof copper composite board and production method thereof | |
| CN110713703A (en) | Method for manufacturing SMC aviation warning ball | |
| CN106009609B (en) | A kind of flexibility sound insulation composite material and preparation method thereof | |
| CN113736178A (en) | Corrosion-resistant MPP power cable protection pipe and production process thereof | |
| CN109437668B (en) | Production process of artificial quartz stone | |
| CN112092421A (en) | SMC sheet preparation method and application | |
| CN114316549B (en) | High-compression-modulus SMC material and preparation method and application thereof | |
| CN106432837B (en) | A kind of no asbestos seal fiberboard | |
| CN111892802A (en) | SMC (sheet molding compound) for new energy automobile battery cover and preparation method thereof | |
| CN113583418B (en) | Flame-retardant low-density sheet molding compound and preparation method thereof | |
| CN112694767A (en) | Friction material and preparation method thereof | |
| CN111454557A (en) | Preparation process of flame-retardant unsaturated polyester resin | |
| CN110423446B (en) | High-molecular hot-melt material and preparation method and application thereof | |
| CN113583351B (en) | High-temperature-resistant flame-retardant material and preparation method and application thereof | |
| CN108165041A (en) | Valve mechanism cover SMC sheet and preparation method thereof | |
| CN113715450B (en) | Assembled floor with double-layer structure and preparation method thereof | |
| CN107939875A (en) | A kind of ceramic composite fibrous brake block | |
| CN115536983A (en) | SMC (sheet molding compound) material with low glass fiber content and high rigidity |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |