High-strength and high-toughness SMC (Sheet Molding Compound)
A high-toughness, high-strength technology, used in layered products, lamination devices, laminations, etc., can solve the problems of poor toughness and structural strength of glass fibers, lack of structural strength of bearing films, and low strength of SMC sheets. The effect of improving overall strength and toughness
Pending Publication Date: 2022-03-01
润发住宅科技(常州)有限公司
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Problems solved by technology
[0004] The purpose of the present invention is to provide a kind of high-intensity high-toughness SMC sheet material, although glass fiber is used as reinforcement structure inside the SMC sheet material of the prior art at least, because the toughness and structural strength of glass fiber itself are relatively poor and irregularly arranged The method leads to the low overall strength of the SMC sheet and is easy to break, and the current SMC sheet bearing film lacks structural strength, which further reduces the overall toughness of the SMC sheet.
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[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0033] see Figure 1-5 , the present invention provides a technical solution: a high-strength and high-toughness SMC sheet, comprising:
[0034] Step 1: Preparation of SMC fat paste, using resin, low shrinkage agent, initiator and filler, etc., using a mixer to mix and stir evenly under low shear force;
[0035] Step 2: thicken the SMC grease paste, then add the thickener and toughening agent to mix for one minute, and send the resin paste to the scraper tank...
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The invention discloses a high-strength and high-toughness SMC (Sheet Molding Compound) sheet which comprises the steps of SMC material grease paste preparation, SMC material grease paste thickening, nanofiber pre-preparation, SMC bearing film toughening, SMC compounding, SMC sheet thickening and plastic packaging, and provides high-strength and high-toughness SMC sheet manufacturing equipment which comprises the steps of SMC material grease paste preparation, SMC material grease paste thickening, nanofiber pre-preparation, SMC bearing film toughening, SMC compounding, SMC sheet thickening and plastic packaging. The device comprises a feeding machine, a shell, a control box, a roller press, a mounting seat, a mounting mechanism, a fiber feeding machine, a conveying belt, a rotating table and a hot pressing roller. According to the high-strength and high-toughness SMC sheet, toughening modification can be carried out by thickening SMC material grease paste, and a net-shaped toughening and reinforcing framework is additionally arranged on a film bearing part of the SMC sheet, so that the overall strength and toughness of the SMC sheet are improved, the SMC sheet is not prone to fracture, automatic arrangement and embedded type fixed installation of the toughening and reinforcing framework on the inner side of the SMC bearing film are achieved, and the service life of the SMC sheet is prolonged. And the overall strength of the SMC sheet is improved, and meanwhile, the process is more intelligent and efficient.
Description
technical field [0001] The invention relates to the technical field of SMC sheets, in particular to a high-strength and high-toughness SMC sheet. Background technique [0002] SMC is the abbreviation of Sheet molding compound, that is, sheet molding compound. The main raw materials are composed of SMC special yarn, unsaturated resin, low shrinkage additives, fillers and various additives. The industrial production of sheet molding compound has a history of many years. Due to its excellent processing performance, mechanical properties and outstanding surface properties , has been widely used in road traffic, food hygiene, chemical industry, aerospace industry and other fields, and the resins that can be made have also been extended to three thermosetting plastics and some thermoplastic materials such as PA, PP, PPS, PVC, etc. The development of materials from single chopped fibers to medium-length continuous fibers, continuous oriented fibers, hybrid fibers and other difficu...
Claims
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Login to View More IPC IPC(8): B32B37/10B32B37/24
CPCB32B37/10B32B37/24B32B2037/243
Inventor 戴伟俊林世明唐伟李剑君
Owner 润发住宅科技(常州)有限公司