CN112159581A - Glass fiber reinforced plastic and preparation method thereof - Google Patents
Glass fiber reinforced plastic and preparation method thereof Download PDFInfo
- Publication number
- CN112159581A CN112159581A CN202010721024.1A CN202010721024A CN112159581A CN 112159581 A CN112159581 A CN 112159581A CN 202010721024 A CN202010721024 A CN 202010721024A CN 112159581 A CN112159581 A CN 112159581A
- Authority
- CN
- China
- Prior art keywords
- glass fiber
- parts
- fiber reinforced
- reinforced plastic
- minutes
- 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
- 239000011152 fibreglass Substances 0.000 title claims abstract description 42
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 239000003365 glass fiber Substances 0.000 claims abstract description 26
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000000843 powder Substances 0.000 claims abstract description 22
- 229920006337 unsaturated polyester resin Polymers 0.000 claims abstract description 21
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 19
- 239000000654 additive Substances 0.000 claims abstract description 15
- 230000000996 additive effect Effects 0.000 claims abstract description 15
- 239000000203 mixture Substances 0.000 claims abstract description 14
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 12
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 12
- 238000002156 mixing Methods 0.000 claims abstract description 12
- 239000003999 initiator Substances 0.000 claims abstract description 11
- 238000004898 kneading Methods 0.000 claims abstract description 10
- 238000003756 stirring Methods 0.000 claims abstract description 9
- 239000006185 dispersion Substances 0.000 claims abstract description 6
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 5
- 239000002562 thickening agent Substances 0.000 claims abstract description 5
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- NOWFQOWNIXZVPF-UHFFFAOYSA-N C(CCCCCCC(C)C)OP(OCCCCCCCC(C)C)OP(O)O.C(O)C(CO)(CO)CO Chemical group C(CCCCCCC(C)C)OP(OCCCCCCCC(C)C)OP(O)O.C(O)C(CO)(CO)CO NOWFQOWNIXZVPF-UHFFFAOYSA-N 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 6
- 239000000395 magnesium oxide Substances 0.000 claims description 5
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 5
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical group [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 5
- 229920002689 polyvinyl acetate Polymers 0.000 claims description 5
- 239000011118 polyvinyl acetate Substances 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- GJBRNHKUVLOCEB-UHFFFAOYSA-N tert-butyl benzenecarboperoxoate Chemical group CC(C)(C)OOC(=O)C1=CC=CC=C1 GJBRNHKUVLOCEB-UHFFFAOYSA-N 0.000 claims description 5
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical group [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 5
- 230000014759 maintenance of location Effects 0.000 abstract description 13
- 238000000465 moulding Methods 0.000 abstract description 10
- 238000005452 bending Methods 0.000 abstract description 9
- 150000001875 compounds Chemical class 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 229920003023 plastic Polymers 0.000 abstract description 4
- 239000004033 plastic Substances 0.000 abstract description 4
- 229920006305 unsaturated polyester Polymers 0.000 description 9
- 239000011159 matrix material Substances 0.000 description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 6
- 239000000835 fiber Substances 0.000 description 5
- 238000009472 formulation Methods 0.000 description 5
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229920001568 phenolic resin Polymers 0.000 description 4
- 239000005011 phenolic resin Substances 0.000 description 4
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N benzene Substances C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000002085 irritant Substances 0.000 description 1
- 231100000021 irritant Toxicity 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003878 thermal aging Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/0405—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
- C08J5/043—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres with glass fibres
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F263/00—Macromolecular compounds obtained by polymerising monomers on to polymers of esters of unsaturated alcohols with saturated acids as defined in group C08F18/00
- C08F263/02—Macromolecular compounds obtained by polymerising monomers on to polymers of esters of unsaturated alcohols with saturated acids as defined in group C08F18/00 on to polymers of vinyl esters with monocarboxylic acids
- C08F263/04—Macromolecular compounds obtained by polymerising monomers on to polymers of esters of unsaturated alcohols with saturated acids as defined in group C08F18/00 on to polymers of vinyl esters with monocarboxylic acids on to polymers of vinyl acetate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/01—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to unsaturated polyesters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/06—Unsaturated polyesters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2425/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
- C08J2425/02—Homopolymers or copolymers of hydrocarbons
- C08J2425/04—Homopolymers or copolymers of styrene
- C08J2425/06—Polystyrene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2431/00—Characterised by the use of copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, or carbonic acid, or of a haloformic acid
- C08J2431/02—Characterised by the use of omopolymers or copolymers of esters of monocarboxylic acids
- C08J2431/04—Homopolymers or copolymers of vinyl acetate
-
- 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
-
- 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
- C08K2201/002—Physical properties
- C08K2201/004—Additives being defined by their length
-
- 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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/527—Cyclic esters
-
- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
Abstract
The invention discloses a glass fiber reinforced plastic and a preparation method thereof, wherein the glass fiber reinforced plastic is prepared from the following components in parts by weight: 15-19 parts of bisphenol A type unsaturated polyester resin, 7-11 parts of low-shrinkage additive, 47-57 parts of inorganic mineral micro powder, 0.2-0.4 part of initiator, 0.5-1.5 parts of release agent, 0.1-0.3 part of thickener, 0.5-3 parts of antioxidant and 15-25 parts of glass fiber; the preparation steps are as follows: firstly, pouring bisphenol A type unsaturated polyester resin, a low shrinkage additive, an antioxidant and an initiator into a mixing kettle for high-speed dispersion for 3-5 minutes, then pouring 10% -15% of inorganic mineral micro powder into the mixing kettle for mixing and stirring, and dispersing at a medium speed for 5-10 minutes, and then adding the dispersed mixture and the rest inorganic mineral micro powder into a kneading machine for kneading for 20-40 minutes; finally adding glass fiber and kneading for 3-8 minutes to obtain the glass fiber reinforced plastic. The glass fiber reinforced molding compound has the advantage of high bending strength retention rate in the high-temperature environment of 100-200 ℃, and is suitable for production of plastic parts operating in the high-temperature environment.
Description
Technical Field
The invention belongs to the technical field of glass fiber plastics, and particularly relates to a glass fiber reinforced plastic and a preparation method and a production process thereof.
Background
The glass fiber is an inorganic non-metallic material with excellent performance, is prepared by taking glass balls or waste glass as a raw material and carrying out processes such as high-temperature melting, wire drawing, winding, weaving and the like, the diameter of a monofilament is several micrometers to twenty micrometers, the monofilament is equivalent to 1/20-1/5 of a hair yarn, and each bundle of fiber precursor consists of hundreds of even thousands of monofilaments. Glass fibers have the advantages of high mechanical strength, large impact energy absorption, high heat resistance, good corrosion resistance and the like, and are generally used as reinforcing materials in composite materials.
Glass-fiber reinforced plastics (Glass-fiber reinforced plastics) refers to a composite material using Glass fiber reinforcement and unsaturated polyester resin (or epoxy resin; phenolic resin) as a matrix, which is called GRP for short. The composite material reinforced by the glass fiber is greatly improved in heat resistance, rigidity, impact resistance, heat resistance and the like compared with simple plastics. The glass fiber reinforced plastic has the strength equivalent to that of steel, contains glass fiber and has the color and luster, shape and performances of corrosion resistance, electric insulation, heat insulation and the like similar to glass, so the glass fiber reinforced plastic is commonly called as glass fiber reinforced plastic in China.
Insulating parts are widely used in industrial production, and are currently used in working environments where high-temperature grease needs to be contacted or instantaneous high temperature needs to be generated, such as transformers, train braking systems and the like. Because of the conditions of long-time high temperature or instant high temperature and the like existing in the working process of equipment, a large number of thermosetting plastic parts of phenolic resin matrix are adopted, but because the production process of the thermosetting plastic of the phenolic resin matrix can cause environmental pollution, the production environment has a large amount of irritant gas, the production efficiency is low and the like, other materials are gradually adopted for substitution; the fiber reinforced unsaturated polyester molding compound product has the characteristics of good appearance effect, diversified molding process, high dimensional precision, good flame retardant property and insulating property and the like, so that the fiber reinforced unsaturated polyester molding compound product can be widely applied to the fields of electrical industry, automobile industry, building and office products.
However, the existing fiber reinforced unsaturated polyester molding compound is mostly o-benzene type or m-benzene type unsaturated polyester resin, so that the heat resistance of the resin matrix is lower than that of phenolic resin, and the strength retention rate at high temperature is lower, so that the use in high-temperature environment is greatly limited.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: provides a glass fiber reinforced plastic which can be normally used at high temperature, and aims to solve the problems of poor heat resistance and low performance at high temperature of the conventional fiber reinforced unsaturated polyester molding compound on the market at present.
In order to solve the above problems, the present invention provides the following solutions:
the glass fiber reinforced plastic comprises the following raw materials in parts by mass: 15-19 parts of unsaturated polyester resin, 7-11 parts of low-shrinkage additive, 47-57 parts of inorganic mineral micro powder, 0.2-0.4 part of initiator, 0.5-1.5 parts of release agent, 0.1-0.3 part of thickener, 0.5-3 parts of antioxidant and 15-25 parts of glass fiber.
Preferably, the release agent is zinc stearate; the initiator is tert-butyl peroxybenzoate; the thickening agent is magnesium oxide; the antioxidant is pentaerythritol diisodecyl diphosphite.
Preferably, the unsaturated polyester resin is bisphenol A type unsaturated polyester resin.
Preferably, the low profile additive is composed of polyvinyl acetate and styrene, and the ratio of the polyvinyl acetate to the styrene is 2:3 by mass.
Preferably, the glass fiber is formed by mixing one or more glass fibers with the lengths of 3mm, 6mm, 12mm, 24mm and 48mm in any proportion.
A method for preparing the above-mentioned one glass fiber reinforced plastic, comprising the steps of:
(1) pouring the bisphenol A type unsaturated polyester resin, the low-shrinkage additive, the antioxidant and the initiator into a mixing kettle for high-speed dispersion and stirring for 3-5 minutes.
(2) After the raw materials in the step (1) are dispersed, pouring part of the inorganic mineral micro powder into the mixer, and continuously carrying out dispersion stirring treatment for 5-10 minutes;
(3) and (3) adding the mixture treated in the step (2) and the rest inorganic mineral micro powder into a kneader to be kneaded for 20-40 minutes, adding glass fibers, and continuously kneading for 3-8 minutes to obtain the glass fiber reinforced plastic.
Preferably, the inorganic mineral micro powder added in the step (2) and the inorganic mineral micro powder added in the step (3) are respectively 10-15% and 85-90% by mass ratio.
Preferably, the stirring speed in the step (1) and the stirring speed in the step (2) are both 1000-2000 rpm.
The invention has the following beneficial effects:
the bisphenol A type unsaturated polyester resin is adopted, so that the heat resistance of a resin matrix is improved, and the process advantages of unsaturated polyester resin are taken into consideration; the invention adopts the mixture of 40 weight percent of polyvinyl acetate and 60 weight percent of styrene as the low-shrinkage additive, thereby increasing the heat resistance of the material matrix and improving the overall strength of the material; the invention adopts the pentaerythritol diisodecyl diphosphite antioxidant, thereby eliminating the aging influence of high temperature on the resin matrix;
according to the invention, through special selection of raw materials and adjustment of the content of each component, the high-temperature strength retention rate of the material is improved, thermal aging failure is avoided, and the bending strength retention rate of the glass fiber can be improved by more than 25% under different temperature conditions. The glass fiber reinforced plastic prepared by the method and the formula has better heat resistance than common unsaturated polyester molding compound, is suitable for being used under high temperature and conventional conditions in various fields, has simpler preparation method, does not need complex equipment, and has higher commercial value and use value.
Detailed Description
The present invention is further illustrated in detail by the following embodiments.
The calcium hydroxide micropowder, glass fiber, aluminum hydroxide micropowder and calcium carbonate micropowder used in the following examples of the present invention are all commercially available products.
Example 1:
weighing the following components according to the formula: 15 parts of bisphenol A type unsaturated polyester resin, 11 parts of low-shrinkage additive, 52 parts of calcium carbonate micropowder, 0.4 part of tert-butyl peroxybenzoate, 0.1 part of zinc stearate, 0.3 part of magnesium oxide, 0.5 part of pentaerythritol diisodecyl diphosphite and 25 parts of glass fiber with the length of 3mm, wherein the parts are parts by weight.
According to the formula, firstly, pouring the bisphenol A type unsaturated polyester resin, the low shrinkage additive, the antioxidant and the initiator into a mixing kettle for high-speed dispersion for 5 minutes, then pouring 10% of inorganic mineral micro powder into the mixing kettle for mixing and stirring and medium-speed dispersion for 10 minutes, then adding the dispersed mixture and the rest of inorganic mineral micro powder into a kneading machine for kneading for 30 minutes, and finally adding glass fibers for kneading for 3 minutes to obtain the glass fiber reinforced plastic.
Table 1 below shows the strength and strength retention at 150 ℃ of the glass fiber reinforced plastic produced according to the above formulation and a conventional general unsaturated polyester molding compound.
TABLE 1
As can be seen from Table 1, at a test temperature of 150 ℃, the initial bending strength and the strength retention rate at 150 ℃ for a long time of the glass fiber reinforced plastic of the present invention are greatly improved compared with those of the common unsaturated polyester molding compound, and particularly, the retention rate of the glass fiber reinforced plastic prepared by the present invention can maintain a high strength in a high temperature environment for a long time.
Example 2:
weighing the following components according to the formula: 17 parts of bisphenol A type unsaturated polyester resin, 9 parts of low-shrinkage additive, 20 parts of calcium carbonate micro powder, 37 parts of aluminum hydroxide micro powder, 0.3 part of tert-butyl peroxybenzoate, 0.5 part of zinc stearate, 0.1 part of magnesium oxide, 2 parts of pentaerythritol diisodecyl diphosphite, 15 parts of glass fiber with the length of 6mm and 5 parts of glass fiber with the length of 12mm, wherein the parts are parts by weight.
According to the formula, firstly, the bisphenol A type unsaturated polyester resin, the low shrinkage additive, the antioxidant and the initiator are poured into a mixing kettle to be dispersed for 3 minutes at a high speed. Then 12 percent of inorganic mineral micro powder is poured into the mixture to be stirred and dispersed for 5 minutes at medium speed. The dispersed mixture and the remaining inorganic mineral fine powder were further added to a kneader and kneaded for 20 minutes. Finally adding glass fiber and kneading for 8 minutes to obtain the glass fiber reinforced plastic.
Table 2 below shows the improvement in flexural strength retention at 175 degrees Celsius for glass fiber reinforced plastics produced in the above formulation.
TABLE 2
As can be seen from the comparison in Table 2, compared with the conventional unsaturated polyester molding compound of the comparative example, the glass fiber reinforced plastic prepared under the formulation and preparation steps of example 2 has the strength retention rate higher than 90% in the 175 ℃ high temperature environment of 2000 hours, and compared with the strength retention rate of about 50% of the comparative example, the high temperature resistance of the glass fiber reinforced plastic of the invention is greatly superior to that of the conventional glass fiber reinforced plastic.
Example 3:
weighing the following components according to the formula: 19 parts of bisphenol A type unsaturated polyester resin, 7 parts of low-shrinkage additive, 47 parts of aluminum hydroxide micro powder, 0.2 part of tert-butyl peroxybenzoate, 1.5 parts of zinc stearate, 0.2 part of magnesium oxide, 3 parts of pentaerythritol diisodecyl diphosphite and 15 parts of glass fiber with the length of 48mm, wherein the parts are parts by weight.
According to the formula, firstly, the bisphenol A type unsaturated polyester resin, the low shrinkage additive, the antioxidant and the initiator are poured into a mixing kettle to be dispersed for 4 minutes at a high speed. Then 15 percent of inorganic mineral micro powder is poured into the mixture to be stirred and dispersed for 7 minutes at medium speed. The dispersed mixture and the remaining inorganic mineral fine powder were further added to a kneader and kneaded for 40 minutes. Finally adding glass fiber and kneading for 5 minutes to obtain the glass fiber reinforced plastic.
Table 3 below shows the improvement in flexural strength retention at 200 ℃ for glass fiber reinforced plastics produced according to the above formulation.
TABLE 3
The data in table 3 also show that the glass fiber reinforced plastic prepared by the present invention still has better performance in high temperature environment (200 ℃) under the condition of relatively large bending strength, the glass fiber reinforced plastic of the present invention still maintains a higher level of bending strength at the high temperature of 200 ℃, and after the experiment in the high temperature environment of 300 hours, the glass fiber reinforced plastic of the present invention still has a strength retention rate of about 90%, and in contrast to the common unsaturated polyester film plastic, which has a strength retention rate of only 46%, the strength is basically reduced by more than half, and the function can not be normally performed.
In summary, the examples 1 to 3, which are combined in a plurality of groups within the scope of the formulation of the present invention, can find that the glass fiber reinforced plastic prepared by the present invention has an initial bending strength greater than that of the glass fiber reinforced plastic added with the ortho-benzene type unsaturated polyester resin, and still maintains a better bending strength after a long-time high-temperature reaction, and the bending strength changes stably during the reaction, and has no large fluctuation, so the glass fiber reinforced plastic prepared by the present invention has a higher bending strength and heat resistance, and can work for a long time and maintain a higher strength under a high-temperature condition.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, modifications and decorations can be made without departing from the core technology of the present invention, and these modifications and decorations shall also fall within the protection scope of the present invention. Any changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (8)
1. The glass fiber reinforced plastic is characterized by comprising the following raw materials in parts by mass: 15-19 parts of unsaturated polyester resin, 7-11 parts of low-shrinkage additive, 47-57 parts of inorganic mineral micro powder, 0.2-0.4 part of initiator, 0.5-1.5 parts of release agent, 0.1-0.3 part of thickener, 0.5-3 parts of antioxidant and 15-25 parts of glass fiber.
2. The glass fiber reinforced plastic as claimed in claim 1, wherein the release agent is zinc stearate; the initiator is tert-butyl peroxybenzoate; the thickening agent is magnesium oxide; the antioxidant is pentaerythritol diisodecyl diphosphite.
3. The glass fiber reinforced plastic of claim 1, wherein the unsaturated polyester resin is bisphenol a type unsaturated polyester resin.
4. The glass fiber reinforced plastic as claimed in claim 1, wherein the low profile additive is composed of polyvinyl acetate and styrene, and the ratio of the polyvinyl acetate to the styrene is 2:3 by mass.
5. The glass fiber reinforced plastic as claimed in claim 1, wherein the glass fiber is formed by mixing one or more glass fibers with lengths of 3mm, 6mm, 12mm, 24mm and 48mm in any proportion.
6. A process for the preparation of a glass fiber reinforced plastic according to claims 1 to 5, comprising the steps of:
(1) pouring bisphenol A type unsaturated polyester resin, low shrinkage additive, antioxidant and initiator into a mixing kettle, dispersing and stirring for 3-5 minutes,
(2) after the raw materials in the step (1) are dispersed, pouring part of the inorganic mineral micro powder into the mixer, and continuously carrying out dispersion stirring treatment for 5-10 minutes;
(3) and (3) adding the mixture treated in the step (2) and the rest inorganic mineral micro powder into a kneader to be kneaded for 20-40 minutes, adding glass fibers, and continuously kneading for 3-8 minutes to obtain the glass fiber reinforced plastic.
7. The method for preparing glass fiber reinforced plastic according to claim 6, wherein the inorganic mineral micro powder added in the step (2) and the inorganic mineral micro powder added in the step (3) are 10-15% and 85-90% respectively by mass ratio.
8. The method for preparing glass fiber reinforced plastic according to claim 6, wherein the stirring speed in step (1) and step (2) is 1000-2000 rpm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010721024.1A CN112159581A (en) | 2020-07-24 | 2020-07-24 | Glass fiber reinforced plastic and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010721024.1A CN112159581A (en) | 2020-07-24 | 2020-07-24 | Glass fiber reinforced plastic and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112159581A true CN112159581A (en) | 2021-01-01 |
Family
ID=73859845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010721024.1A Pending CN112159581A (en) | 2020-07-24 | 2020-07-24 | Glass fiber reinforced plastic and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112159581A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102558804A (en) * | 2012-02-14 | 2012-07-11 | 上海耀华大中新材料有限公司 | Black low-flow-mark polyester molding compound and preparation method thereof |
| CN102634184A (en) * | 2012-05-17 | 2012-08-15 | 镇江育达复合材料有限公司 | SMC (sheet molding compound) material for passenger car covering parts and preparation method thereof |
| CN102977567A (en) * | 2012-08-22 | 2013-03-20 | 常熟市筑紫机械有限公司 | Fire retardation unsaturated polyester molding compound |
| CN103160098A (en) * | 2013-03-21 | 2013-06-19 | 宁波华缘复合新材料有限公司 | Thermosetting plastic |
| 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 |
| CN105778457A (en) * | 2016-05-27 | 2016-07-20 | 江苏兆鋆新材料股份有限公司 | Preparing method for stable low-shrinkage bulk molding compound |
| CN106751638A (en) * | 2016-12-30 | 2017-05-31 | 华缘新材料股份有限公司 | A kind of fiber reinforced thermoset plastics and preparation method thereof |
| CN108117731A (en) * | 2017-12-28 | 2018-06-05 | 广东赛普电器制造有限公司 | A kind of method of tubular molding compound and preparation without warpage heat-proof combustion-resistant air conditioner air deflector |
-
2020
- 2020-07-24 CN CN202010721024.1A patent/CN112159581A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102558804A (en) * | 2012-02-14 | 2012-07-11 | 上海耀华大中新材料有限公司 | Black low-flow-mark polyester molding compound and preparation method thereof |
| CN102634184A (en) * | 2012-05-17 | 2012-08-15 | 镇江育达复合材料有限公司 | SMC (sheet molding compound) material for passenger car covering parts and preparation method thereof |
| CN102977567A (en) * | 2012-08-22 | 2013-03-20 | 常熟市筑紫机械有限公司 | Fire retardation unsaturated polyester molding compound |
| CN103160098A (en) * | 2013-03-21 | 2013-06-19 | 宁波华缘复合新材料有限公司 | Thermosetting plastic |
| 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 |
| CN105778457A (en) * | 2016-05-27 | 2016-07-20 | 江苏兆鋆新材料股份有限公司 | Preparing method for stable low-shrinkage bulk molding compound |
| CN106751638A (en) * | 2016-12-30 | 2017-05-31 | 华缘新材料股份有限公司 | A kind of fiber reinforced thermoset plastics and preparation method thereof |
| CN108117731A (en) * | 2017-12-28 | 2018-06-05 | 广东赛普电器制造有限公司 | A kind of method of tubular molding compound and preparation without warpage heat-proof combustion-resistant air conditioner air deflector |
Non-Patent Citations (1)
| Title |
|---|
| 唐见茂: "《绿色复合材料》", 31 December 2016, 中国铁道出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102329471B (en) | Fiberglass-reinforced polyformaldehyde material and preparation method thereof | |
| CN107090129B (en) | Mesophase pitch-based graphite fiber/polypropylene composite material and preparation method thereof | |
| CN110698816B (en) | Wear-resistant heat-resistant epoxy composite material and preparation method thereof | |
| CN104559036A (en) | Light-power high-light-stability cable material and preparation method thereof | |
| CN107805342A (en) | A kind of high heat-resistant impact MPP electric power protection pipes and preparation method thereof | |
| CN103408905B (en) | A kind of PBT composite and preparation method thereof | |
| CN111153608A (en) | Organic-inorganic hybrid film-forming microcapsule type high-temperature self-repairing basalt fiber water-based impregnating compound and preparation method thereof | |
| CN103709663A (en) | Modified PET/PBT alloy material | |
| CN112159581A (en) | Glass fiber reinforced plastic and preparation method thereof | |
| CN110194893A (en) | Silicon-aluminium compound cooperates with magnesium hydroxide flame retardant nylon composite materials and preparation method thereof | |
| CN109021562A (en) | A kind of highly effective flame-retardant enhancing nylon composite materials and preparation method thereof | |
| CN114735940B (en) | Flame-retardant glass fiber composite material and preparation method thereof | |
| CN111363351A (en) | Polyamide 66 composition and preparation method thereof | |
| CN106117894A (en) | A kind of environmental protection, high-fire-resistance power cable material and preparation method thereof | |
| CN111153607A (en) | Organic-inorganic mixed phosphate-based high-temperature-resistant basalt fiber impregnating compound and preparation method thereof | |
| CN114702245B (en) | Glass fiber composite material with acid and alkali resistance and preparation method thereof | |
| CN112735643B (en) | Copper core fluoroplastic insulated compression-resistant electric wire | |
| CN104448685A (en) | Ceramic fiber reinforced flame retardant ABS and preparation method thereof | |
| CN107163489A (en) | A kind of high intensity high heat conduction PC/ABS plastics and preparation method thereof | |
| CN114479447A (en) | High-strength glass fiber composite material and preparation method thereof | |
| CN112876841A (en) | Halogen-free flame-retardant long glass fiber reinforced nylon 12 material with high RTI value as well as preparation method and application thereof | |
| CN113667241A (en) | Preparation method of flame-retardant 90-DEG C PVC insulating material | |
| CN113667296A (en) | Heat-resistant anti-aging high polymer material and preparation method thereof | |
| CN102250467B (en) | Polyphthalamide composite material and preparation method thereof | |
| CN104877298A (en) | Photo-stabilization cable material for high power and preparation method thereof |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210101 |