CN102532806A - Method for preparing epoxy resin composite material through SMC process - Google Patents
Method for preparing epoxy resin composite material through SMC process Download PDFInfo
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- CN102532806A CN102532806A CN2011103810100A CN201110381010A CN102532806A CN 102532806 A CN102532806 A CN 102532806A CN 2011103810100 A CN2011103810100 A CN 2011103810100A CN 201110381010 A CN201110381010 A CN 201110381010A CN 102532806 A CN102532806 A CN 102532806A
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Abstract
A method for preparing an epoxy resin composite material through an SMC process comprises marks of E-51, E-44, E-42, E-20, E-12 and the like. Epoxy resin serves as a substrate, glass fiber serves as a strengthening body, subtle pulverization dicyandiamide serves as a curing agent, a silane coupling agent KH-550 serves as a coupling agent, and white carbon black serves as a filler. The preparation process comprises preparation of paste resin, sheet pressing and solidification molding. The method has the advantages that (1) the method is low in contractibility and capable of effectively overcoming the shortcoming of unsaturated polyester resin in the SMC; (2) the problem that products cannot be stored for long time is solved, dicyandiamide powder can be made into micro powder grade (D50=2.5mum), intermiscibility with epoxy resin is improved, solidification temperature of a solidified system is reduced, and solidification reaction speed is improved to some extent; and (3) the method can achieve batch production of materials of different size and thickness, thereby being wide in purpose.
Description
Technical field
The present invention relates to a kind of method for preparing epoxy resin composite material, relate in particular to a kind of method with SMC prepared epoxy resin composite material.
Background technology
SMC is the abbreviation of English sheet molding compound " Sheet Moulding Compound ", is a kind of compression molding material of sandwich.During use, only need the film on two sides is thrown off, by the size cutting of required goods, lamination is put into warming and pressurizing in the mould that has heated up, promptly gets desired product.The SMC method is a kind of advanced person's a composite material forming method, the moulding compound of processing in this way, and cheap, easy to use, use characteristics is good, can be used for suppressing different size, complex-shaped product.The gordian technique of preparation SMC has: the selecting for use of (1) resin; Though unsaturated polyester resin commonly used has good mechanical property, electric property and resistance to chemical corrosion; But smell and toxicity were bigger when its shortcoming was moulding; Contain vinylbenzene, irritant gas is arranged, contact healthy unfavorable for a long time.In addition, shrinking percentage is bigger during curing, and the shelf-life is short, and thermotolerance, intensity and modulus are all lower, and be yielding, therefore seldom is used for stressed stronger goods; (2) Natural manganese dioxide (MgO) thickening is generally used in the thickening of resin, general unsaturated polyester, and end carboxyl and MgO coordination type through polyester reticulate structure, and then the viscosity of polyester is increased.Though this thickening material price is low, thickening rate is very slow, and factors such as the granularity of MgO, dispersiveness, activity also have considerable influence to the thickening properties of unsaturated polyester vinegar resin, thereby causes its thickening effectiveness unstable, and the SMC product strength of production is not high.
Epoxy resin composite material is exactly important a kind of in the high performance composite; Because epoxy resin has the characteristics of cohesive strength and cohesive strength height, erosion resistance, dielectric properties excellence and good combination property; Therefore; Epoxy resin composite material is used for the demanding occasion of use properties more in actual engineering, as as structured material, solid rocket motor case, corrosion resistant material, electrically insulating material and the senior sports goods of aircraft, satellite, spacecraft etc. such as racket, ball handful, fishing rod, racing boat etc.Its moulding process has usually: hand pasting forming, compression molding, injection molding, RTM moulding etc., and also do not appear in the newspapers with the preparation method of SMC prepared epoxy resin-base composite material.
Summary of the invention
The object of the present invention is to provide a kind of method with SMC prepared epoxy resin composite material, whole SMC preparation technology is simple, and preparation cost is lower, can realize the batch process of different size, different thickness, and is of many uses.
The present invention realizes that like this step of preparation process is following:
A kind of method with SMC prepared epoxy resin composite material is characterized in that process step is:
The starting material that the present invention is used: (1) body material is at least a of E-51 epoxy resin, E-44 epoxy resin, E-42 epoxy resin, E-20 epoxy resin, E-12 epoxy resin; (2) strengthening body is at least a of high-strength glass fibre, high-modulus glass fiber, refractory glass fibre, alkali resistant glass fibre, acid-resistant glass fiber; (3) solidifying agent is the micronization Dyhard RU 100; (4) coupling agent is a silane resin acceptor kh-550; (5) filler is a WHITE CARBON BLACK.
Step of preparation process of the present invention:
Step 1: the preparation of sticking with paste resin:, take by weighing epoxy resin, solidifying agent and coupling agent respectively, wherein with the body material of epoxy resin as matrix material; The consumption of solidifying agent micronization Dyhard RU 100 is the 1-20% of epoxy resin quality, and the consumption of silane resin acceptor kh-550 is 1% of an epoxy resin quality, after the mixing and stirring; Add WHITE CARBON BLACK as filler, its consumption accounts for the 10-30% of epoxy resin quality, rubs to dough; Accomplish tack-free, for use;
Step 2: sheet material compacting: the mixture that kneading in the step 1 is good is placed on two-layer as between the glasscloth that strengthens body; After the two sides covers with layer glass cloth and polyester film again; Be placed on pressure forming machine central authorities, at 10-80MPa pressure pressed slabbing moulding compound sample;
Step 3: curing molding: with sheet molding compound sample curing molding composite panel on the sulfidization molding machine that step 2 makes, curing process is: temperature is 150-200 ℃, and the time is 0.5-5h, and pressure is 3-10MPa.
Advantage of the present invention is: (1) adopts epoxy resin to replace unsaturated polyester resin in traditional SMC technology as matrix resin; Its temperature tolerance, intensity, the relative unsaturated polyester resin of insulation effect have had large increase; And shrinkability is low, can solve the numerous deficiencies of unsaturated polyester resin in SMC effectively; (2) adopt the micronization Dyhard RU 100 as solidifying agent, curing reaction is too fast at normal temperatures can effectively to solve the ambient cure agent on the one hand, the insufficient problem that goods can not store for a long time; On the other hand the Dyhard RU 100 powder is accomplished micro powder grade (D50=2.5 μ m), increased the intermiscibility with epoxy resin, reduced the solidification value of this curing system, improved curing reaction speed to a certain extent.(3) whole SMC preparation technology is simple, and preparation cost is lower, can realize the batch process of different size, different thickness, and is of many uses.
Embodiment
Embodiment 1
Step 1: the preparation of sticking with paste resin: with the body material of epoxy resin as matrix material; Take by weighing E-51 epoxy resin, micronization dicy-curing agent and silane resin acceptor kh-550 respectively, its mass ratio is 100:10:1, after stirring; Add 10% of E-51 epoxy resin quality and make filler; Rub to dough, accomplish tack-free, for use;
Step 2: sheet material compacting: the mixture that kneading in the step 1 is good is placed on two-layer as between the high-modulus glass fiber cloth that strengthens body; After the two sides covers with two layers of high modulus glasscloth and polyester film again; Be placed on pressure forming machine central authorities, at 75MPa pressure pressed slabbing moulding compound sample;
Step 3: curing molding: with sheet molding compound sample curing molding composite panel on the sulfidization molding machine that step 2 makes, curing process is: temperature is 160 ℃, and the time is 1h, and pressure is 5MPa.
Embodiment 2
Step 1: the preparation of sticking with paste resin: with the body material of epoxy resin as matrix material; Take by weighing E-44 epoxy resin, micronization dicy-curing agent and silane resin acceptor kh-550 respectively, its mass ratio is 100:10:1, after stirring; Add 10% of E-51 epoxy resin quality and make filler; Rub to dough, accomplish tack-free, for use;
Step 2: sheet material compacting: the mixture that kneading in the step 1 is good is placed on two-layer as between the high-modulus glass fiber cloth that strengthens body; After the two sides covers with two layers of high modulus glasscloth and polyester film again; Be placed on pressure forming machine central authorities, at 75MPa pressure pressed slabbing moulding compound sample;
Step 3: curing molding: with sheet molding compound sample curing molding composite panel on the sulfidization molding machine that step 2 makes, curing process is: temperature is 160 ℃, and the time is 1h, and pressure is 5MPa.
Embodiment 3
Step 1: the preparation of sticking with paste resin: with the body material of epoxy resin as matrix material; Take by weighing E-42 epoxy resin, micronization dicy-curing agent and silane resin acceptor kh-550 respectively, its mass ratio is 100:10:1, after stirring; Add 10% of E-51 epoxy resin quality and make filler; Rub to dough, accomplish tack-free, for use;
Step 2: sheet material compacting: the mixture that kneading in the step 1 is good is placed on two-layer as between the high-modulus glass fiber cloth that strengthens body; After the two sides covers with two layers of high modulus glasscloth and polyester film again; Be placed on pressure forming machine central authorities, at 75MPa pressure pressed slabbing moulding compound sample;
Step 3: curing molding: with sheet molding compound sample curing molding composite panel on the sulfidization molding machine that step 2 makes, curing process is: temperature is 160 ℃, and the time is 1h, and pressure is 5MPa.
Embodiment 4
Step 1: the preparation of sticking with paste resin: with the body material of epoxy resin as matrix material; Take by weighing E-20 epoxy resin, micronization dicy-curing agent and silane resin acceptor kh-550 respectively, its mass ratio is 100:10:1, after stirring; Add 10% of E-51 epoxy resin quality and make filler; Rub to dough, accomplish tack-free, for use;
Step 2: sheet material compacting: the mixture that kneading in the step 1 is good is placed on two-layer as between the high-modulus glass fiber cloth that strengthens body; After the two sides covers with two layers of high modulus glasscloth and polyester film again; Be placed on pressure forming machine central authorities, at 75MPa pressure pressed slabbing moulding compound sample;
Step 3: curing molding: with sheet molding compound sample curing molding composite panel on the sulfidization molding machine that step 2 makes, curing process is: temperature is 160 ℃, and the time is 1h, and pressure is 5MPa.
Embodiment 5
Step 1: the preparation of sticking with paste resin: with the body material of epoxy resin as matrix material; Take by weighing E-12 epoxy resin, micronization dicy-curing agent and silane resin acceptor kh-550 respectively, its mass ratio is 100:10:1, after stirring; Add 10% of E-51 epoxy resin quality and make filler; Rub to dough, accomplish tack-free, for use;
Step 2: sheet material compacting: the mixture that kneading in the step 1 is good is placed on two-layer as between the high-modulus glass fiber cloth that strengthens body; After the two sides covers with two layers of high modulus glasscloth and polyester film again; Be placed on pressure forming machine central authorities, at 75MPa pressure pressed slabbing moulding compound sample;
Step 3: curing molding: with sheet molding compound sample curing molding composite panel on the sulfidization molding machine that step 2 makes, curing process is: temperature is 160 ℃, and the time is 1h, and pressure is 5MPa.
Embodiment 6
Step 1: the preparation of sticking with paste resin: with the body material of epoxy resin as matrix material; Take by weighing E-51 epoxy resin, micronization dicy-curing agent and silane resin acceptor kh-550 respectively, its mass ratio is 100:1:1, after stirring; Add 10% of E-51 epoxy resin quality and make filler; Rub to dough, accomplish tack-free, for use;
Step 2: sheet material compacting: the mixture that kneading in the step 1 is good is placed on two-layer as between the high-modulus glass fiber cloth that strengthens body; After the two sides covers with two layers of high modulus glasscloth and polyester film again; Be placed on pressure forming machine central authorities, at 75MPa pressure pressed slabbing moulding compound sample;
Step 3: curing molding: with sheet molding compound sample curing molding composite panel on the sulfidization molding machine that step 2 makes, curing process is: temperature is 160 ℃, and the time is 1h, and pressure is 5MPa.
Embodiment 7
Step 1: the preparation of sticking with paste resin: with the body material of epoxy resin as matrix material; Take by weighing E-51 epoxy resin, micronization dicy-curing agent and silane resin acceptor kh-550 respectively, its mass ratio is 100:20:1, after stirring; Add 10% of E-51 epoxy resin quality and make filler; Rub to dough, accomplish tack-free, for use;
Step 2: sheet material compacting: the mixture that kneading in the step 1 is good is placed on two-layer as between the high-modulus glass fiber cloth that strengthens body; After the two sides covers with two layers of high modulus glasscloth and polyester film again; Be placed on pressure forming machine central authorities, at 75MPa pressure pressed slabbing moulding compound sample;
Step 3: curing molding: with sheet molding compound sample curing molding composite panel on the sulfidization molding machine that step 2 makes, curing process is: temperature is 160 ℃, and the time is 1h, and pressure is 5MPa.
Embodiment 8
Step 1: the preparation of sticking with paste resin: with the body material of epoxy resin as matrix material; Take by weighing E-51 epoxy resin, micronization dicy-curing agent and silane resin acceptor kh-550 respectively, its mass ratio is 100:20:1, after stirring; Add 30% of E-51 epoxy resin quality and make filler; Rub to dough, accomplish tack-free, for use;
Step 2: sheet material compacting: the mixture that kneading in the step 1 is good is placed on two-layer as between the high-modulus glass fiber cloth that strengthens body; After the two sides covers with two layers of high modulus glasscloth and polyester film again; Be placed on pressure forming machine central authorities, at 75MPa pressure pressed slabbing moulding compound sample;
Step 3: curing molding: with sheet molding compound sample curing molding composite panel on the sulfidization molding machine that step 2 makes, curing process is: temperature is 160 ℃, and the time is 1h, and pressure is 5MPa.
Embodiment 9
Step 1: the preparation of sticking with paste resin: with the body material of epoxy resin as matrix material; Take by weighing E-51 epoxy resin, micronization dicy-curing agent and silane resin acceptor kh-550 respectively, its mass ratio is 100:20:1, after stirring; Add 30% of E-51 epoxy resin quality and make filler; Rub to dough, accomplish tack-free, for use;
Step 2: sheet material compacting: the mixture that kneading in the step 1 is good is placed on two-layer as between the high intensity glass fiber cloth that strengthens body; After the two sides covers with two-layer high intensity glass fiber cloth and polyester film again; Be placed on pressure forming machine central authorities, at 75MPa pressure pressed slabbing moulding compound sample;
Step 3: curing molding: with sheet molding compound sample curing molding composite panel on the sulfidization molding machine that step 2 makes, curing process is: temperature is 160 ℃, and the time is 1h, and pressure is 5MPa.
Embodiment 10
Step 1: the preparation of sticking with paste resin: with the body material of epoxy resin as matrix material; Take by weighing E-51 epoxy resin, micronization dicy-curing agent and silane resin acceptor kh-550 respectively, its mass ratio is 100:20:1, after stirring; Add 30% of E-51 epoxy resin quality and make filler; Rub to dough, accomplish tack-free, for use;
Step 2: sheet material compacting: the mixture that kneading in the step 1 is good is placed on two-layer as between the refractory glass fibre cloth that strengthens body; After the two sides covers with two-layer refractory glass fibre cloth and polyester film again; Be placed on pressure forming machine central authorities, at 75MPa pressure pressed slabbing moulding compound sample;
Step 3: curing molding: with sheet molding compound sample curing molding composite panel on the sulfidization molding machine that step 2 makes, curing process is: temperature is 160 ℃, and the time is 1h, and pressure is 5MPa.
Embodiment 11
Step 1: the preparation of sticking with paste resin: with the body material of epoxy resin as matrix material; Take by weighing E-51 epoxy resin, micronization dicy-curing agent and silane resin acceptor kh-550 respectively, its mass ratio is 100:20:1, after stirring; Add 30% of E-51 epoxy resin quality and make filler; Rub to dough, accomplish tack-free, for use;
Step 2: sheet material compacting: the mixture that kneading in the step 1 is good is placed on two-layer as between the alkali resistant glass fibre cloth that strengthens body; After the two sides covers with two-layer alkali resistant glass fibre cloth and polyester film again; Be placed on pressure forming machine central authorities, at 75MPa pressure pressed slabbing moulding compound sample;
Step 3: curing molding: with sheet molding compound sample curing molding composite panel on the sulfidization molding machine that step 2 makes, curing process is: temperature is 160 ℃, and the time is 1h, and pressure is 5MPa.
Embodiment 11
Step 1: the preparation of sticking with paste resin: with the body material of epoxy resin as matrix material; Take by weighing E-51 epoxy resin, micronization dicy-curing agent and silane resin acceptor kh-550 respectively, its mass ratio is 100:20:1, after stirring; Add 30% of E-51 epoxy resin quality and make filler; Rub to dough, accomplish tack-free, for use;
Step 2: sheet material compacting: the mixture that kneading in the step 1 is good is placed on two-layer as between the acid-resistant glass cloth that strengthens body; After the two sides covers with two-layer acid-resistant glass cloth and polyester film again; Be placed on pressure forming machine central authorities, at 75MPa pressure pressed slabbing moulding compound sample;
Step 3: curing molding: with sheet molding compound sample curing molding composite panel on the sulfidization molding machine that step 2 makes, curing process is: temperature is 160 ℃, and the time is 1h, and pressure is 5MPa.
Embodiment 12
Step 1: the preparation of sticking with paste resin: with the body material of epoxy resin as matrix material; Take by weighing E-51 epoxy resin, micronization dicy-curing agent and silane resin acceptor kh-550 respectively, its mass ratio is 100:20:1, after stirring; Add 30% of E-51 epoxy resin quality and make filler; Rub to dough, accomplish tack-free, for use;
Step 2: sheet material compacting: the mixture that kneading in the step 1 is good is placed on two-layer as between the acid-resistant glass cloth that strengthens body; After the two sides covers with two-layer acid-resistant glass cloth and polyester film again; Be placed on pressure forming machine central authorities, at 10MPa pressure pressed slabbing moulding compound sample;
Step 3: curing molding: with sheet molding compound sample curing molding composite panel on the sulfidization molding machine that step 2 makes, curing process is: temperature is 160 ℃, and the time is 1h, and pressure is 5MPa.
Embodiment 13
Step 1: the preparation of sticking with paste resin: with the body material of epoxy resin as matrix material; Take by weighing E-51 epoxy resin, micronization dicy-curing agent and silane resin acceptor kh-550 respectively, its mass ratio is 100:20:1, after stirring; Add 30% of E-51 epoxy resin quality and make filler; Rub to dough, accomplish tack-free, for use;
Step 2: sheet material compacting: the mixture that kneading in the step 1 is good is placed on two-layer as between the acid-resistant glass cloth that strengthens body; After the two sides covers with two-layer acid-resistant glass cloth and polyester film again; Be placed on pressure forming machine central authorities, at 80MPa pressure pressed slabbing moulding compound sample;
Step 3: curing molding: with sheet molding compound sample curing molding composite panel on the sulfidization molding machine that step 2 makes, curing process is: temperature is 160 ℃, and the time is 1h, and pressure is 5MPa.
Embodiment 14
Step 1: the preparation of sticking with paste resin: with the body material of epoxy resin as matrix material; Take by weighing E-51 epoxy resin, micronization dicy-curing agent and silane resin acceptor kh-550 respectively, its mass ratio is 100:20:1, after stirring; Add 30% of E-51 epoxy resin quality and make filler; Rub to dough, accomplish tack-free, for use;
Step 2: sheet material compacting: the mixture that kneading in the step 1 is good is placed on two-layer as between the acid-resistant glass cloth that strengthens body; After the two sides covers with two-layer acid-resistant glass cloth and polyester film again; Be placed on pressure forming machine central authorities, at 75MPa pressure pressed slabbing moulding compound sample;
Step 3: curing molding: with sheet molding compound sample curing molding composite panel on the sulfidization molding machine that step 2 makes, curing process is: temperature is 150 ℃, and the time is 2h, and pressure is 5MPa.
Embodiment 15
Step 1: the preparation of sticking with paste resin: with the body material of epoxy resin as matrix material; Take by weighing E-51 epoxy resin, micronization dicy-curing agent and silane resin acceptor kh-550 respectively, its mass ratio is 100:20:1, after stirring; Add 30% of E-51 epoxy resin quality and make filler; Rub to dough, accomplish tack-free, for use;
Step 2: sheet material compacting: the mixture that kneading in the step 1 is good is placed on two-layer as between the acid-resistant glass cloth that strengthens body; After the two sides covers with two-layer acid-resistant glass cloth and polyester film again; Be placed on pressure forming machine central authorities, at 75MPa pressure pressed slabbing moulding compound sample;
Step 3: curing molding: with sheet molding compound sample curing molding composite panel on the sulfidization molding machine that step 2 makes, curing process is: temperature is 200 ℃, and the time is 0.5h, and pressure is 5MPa.
Embodiment 16
Step 1: the preparation of sticking with paste resin: with the body material of epoxy resin as matrix material; Take by weighing E-51 epoxy resin, micronization dicy-curing agent and silane resin acceptor kh-550 respectively, its mass ratio is 100:20:1, after stirring; Add 30% of E-51 epoxy resin quality and make filler; Rub to dough, accomplish tack-free, for use;
Step 2: sheet material compacting: the mixture that kneading in the step 1 is good is placed on two-layer as between the acid-resistant glass cloth that strengthens body; After the two sides covers with two-layer acid-resistant glass cloth and polyester film again; Be placed on pressure forming machine central authorities, at 75MPa pressure pressed slabbing moulding compound sample;
Step 3: curing molding: with sheet molding compound sample curing molding composite panel on the sulfidization molding machine that step 2 makes, curing process is: temperature is 160 ℃, and the time is 1h, and pressure is 3MPa.
Embodiment 16
Step 1: the preparation of sticking with paste resin: with the body material of epoxy resin as matrix material; Take by weighing E-51 epoxy resin, micronization dicy-curing agent and silane resin acceptor kh-550 respectively, its mass ratio is 100:20:1, after stirring; Add 30% of E-51 epoxy resin quality and make filler; Rub to dough, accomplish tack-free, for use;
Step 2: sheet material compacting: the mixture that kneading in the step 1 is good is placed on two-layer as between the acid-resistant glass cloth that strengthens body; After the two sides covers with two-layer acid-resistant glass cloth and polyester film again; Be placed on pressure forming machine central authorities, at 75MPa pressure pressed slabbing moulding compound sample;
Step 3: curing molding: with sheet molding compound sample curing molding composite panel on the sulfidization molding machine that step 2 makes, curing process is: temperature is 160 ℃, and the time is 1h, and pressure is 10MPa.
Claims (2)
1. method with SMC prepared epoxy resin composite material; It is characterized in that process step is: the preparation of resin is stuck with paste in (1): with the body material of epoxy resin as matrix material; Take by weighing epoxy resin, solidifying agent and coupling agent respectively; Wherein, the consumption of solidifying agent micronization Dyhard RU 100 is the 1-20% of epoxy resin quality, and the coupling agent consumption is 1% mixing and stirring of epoxy resin quality; After stirring, add the filler WHITE CARBON BLACK, its consumption accounts for the 10-30% of epoxy resin quality, rubs to dough, accomplishes tack-free, for use; (2) sheet material compacting: the mixture that kneading is good in the step 1 is placed on two-layer as between the glasscloth that strengthens body; After the two sides covers with layer glass cloth and polyester film again; Be placed on pressure forming machine central authorities, at 10-80MPa pressure pressed slabbing moulding compound sample; (3) curing molding: with sheet molding compound sample curing molding composite panel on the sulfidization molding machine that step 2 makes, curing process is: temperature is 150-200 ℃, and the time is 0.5-5h, and pressure is 3-10MPa.
2. the method for a kind of SMC prepared epoxy resin composite material according to claim 1; It is characterized in that body material is at least a of E-51 epoxy resin, E-44 epoxy resin, E-42 epoxy resin, E-20 epoxy resin, E-12 epoxy resin; The enhancing body is at least a of high strength glass fiber, high-modulus glass fiber, refractory glass fibre, alkali resistant glass fibre, acid-resistant glass fiber; Solidifying agent is the micronization Dyhard RU 100; Coupling agent is a silane resin acceptor kh-550, and filler is a WHITE CARBON BLACK.
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| CN104387565A (en) * | 2014-11-17 | 2015-03-04 | 苏州苏月新材料有限公司 | Composite system of epoxy resin and curing agent for prepreg and preparation method of composite system |
| CN105082560A (en) * | 2015-09-16 | 2015-11-25 | 山东格瑞德集团有限公司 | Production technology of environment-friendly thermoplastic sports products |
| CN105733195A (en) * | 2016-05-05 | 2016-07-06 | 太仓小小精密模具有限公司 | Anti-corrosion resin-based mould material |
| CN106750444A (en) * | 2016-12-29 | 2017-05-31 | 哈尔滨工业大学 | A kind of fibre reinforced vinyl ester resin SMC prepregs and preparation method thereof and application method |
| CN113881017A (en) * | 2021-11-18 | 2022-01-04 | 宁夏锦华化工有限公司 | Production method of ultra-fine dicyandiamide |
| CN113956615A (en) * | 2021-11-09 | 2022-01-21 | 江苏集萃复合材料装备研究所有限公司 | High-compression-strength glass fiber composite material and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104387565A (en) * | 2014-11-17 | 2015-03-04 | 苏州苏月新材料有限公司 | Composite system of epoxy resin and curing agent for prepreg and preparation method of composite system |
| CN105082560A (en) * | 2015-09-16 | 2015-11-25 | 山东格瑞德集团有限公司 | Production technology of environment-friendly thermoplastic sports products |
| CN105733195A (en) * | 2016-05-05 | 2016-07-06 | 太仓小小精密模具有限公司 | Anti-corrosion resin-based mould material |
| CN106750444A (en) * | 2016-12-29 | 2017-05-31 | 哈尔滨工业大学 | A kind of fibre reinforced vinyl ester resin SMC prepregs and preparation method thereof and application method |
| CN106750444B (en) * | 2016-12-29 | 2020-04-24 | 哈尔滨工业大学 | Use method of carbon fiber reinforced vinyl ester resin SMC prepreg |
| CN113956615A (en) * | 2021-11-09 | 2022-01-21 | 江苏集萃复合材料装备研究所有限公司 | High-compression-strength glass fiber composite material and preparation method thereof |
| CN113881017A (en) * | 2021-11-18 | 2022-01-04 | 宁夏锦华化工有限公司 | Production method of ultra-fine dicyandiamide |
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| CN102532806B (en) | 2014-02-26 |
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