Molded product containing fiber-reinforced thermosetting resin reclaimed material and preparation method of molded product
A fiber-reinforced, thermosetting technology, applied in the field of thermosetting resins, can solve the problems of inability to give full play to the performance of fiber-reinforced thermosetting resin recycled materials, refractory degradation, and difficulty in recycling, so as to overcome the poor performance of molded products, improve mechanical properties, and prepare methods. simple effect
Pending Publication Date: 2022-01-07
JIANGSU AOSHENG COMPOSITE MATERIALS HI TECH
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Problems solved by technology
[0004] Environmental pollution and waste of resources caused by discarded polymer materials have attracted widespread global attention in recent years. However, due to the lack of effective recycling technology, the current plastic recycling rate is less than 10%, and thermosetting resins and their fiber-reinforced materials have dense three-dimensional The network structure is difficult to dissolve and melt, and it is difficult to be degraded, and its recycling is a difficult problem that needs to be solved urgently
However, the performance of the resin concrete prepared by this method is not high, and the performance of the fiber-reinforced thermosetting resin recycled material cannot be fully utilized.
[0007] Therefore, the prior art lacks a molded product containing recycled fiber-reinforced thermosetting resin that can give full play to the performance of recycled fiber-reinforced thermosetting resin and has a simple preparation process and its preparation process
Method used
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Embodiment 1～28、 comparative example 1～2
[0070] According to the formula shown in Table 1 (matrix resin is M, 100 parts by weight; coupling agent is C, 1 part by weight) and processing conditions, fiber reinforced thermosetting resin recycled material A and fiber reinforced thermosetting resin recycled material B are respectively immersed in solvent After pressurizing and heating for a certain period of time, take it out and dry it; then mix the fiber-reinforced thermosetting resin recycled material A into the main agent of the matrix resin, stir and heat for a certain period of time; then lay the fiber-reinforced thermosetting resin recycled material B into the mold; finally , by vacuum forming, the main agent of the matrix resin, curing agent, and coupling agent are poured into the mold, and cured at 40°C for 6 hours to obtain a molded product.
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Abstract
The invention discloses a molded product containing a fiber-reinforced thermosetting resin reclaimed material. The product comprises the following components by weight: 100 parts by weight of matrix resin; totally 1-100 parts of a fiber-reinforced thermosetting resin reclaimed material A and a fiber-reinforced thermosetting resin reclaimed material; and 0.1-5 parts of a coupling agent. Meanwhile, the invention provides a preparation method of the molded product containing the fiber-reinforced thermosetting resin reclaimed material, and the prepared product improves the interface bonding property of the fiber-reinforced thermosetting resin reclaimed material and matrix resin by reasonably selecting the size and composition of the fiber-reinforced thermosetting resin reclaimed material; the problem of poor performance of a molded product filled with the fiber-reinforced thermosetting resin reclaimed material is solved, and the mechanical property of the molded product is greatly improved.
Description
technical field [0001] The invention relates to the field of thermosetting resins, in particular to a molded product containing fiber-reinforced thermosetting resin recycled materials and a preparation method thereof. Background technique [0002] Thermosetting resin is a kind of high molecular polymer material. The molecular chains are chemically cross-linked to form a three-dimensional network structure. During the polymerization process, this cross-linked structure cannot be repeatedly processed and shaped. It has excellent comprehensive properties: including high strength, good heat resistance, excellent electrical properties, corrosion resistance, aging resistance, and good dimensional stability. It is widely used in electronics / electrical, energy, chemical, mechanical, automobile and rail transit, construction and other fields. [0003] Fiber-reinforced thermosetting resin is a composite material that uses resin as the matrix material and is reinforced with fibers. B...
Claims
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IPC IPC(8): C08L63/02C08L67/06C08K7/06C08J5/04
CPCC08J5/042C08J2363/02C08J2367/06
Inventor 严兵胡世国吴世超祁震张继维唐许施刘生张可可张世伟蔡少雷何郅晴
Owner JIANGSU AOSHENG COMPOSITE MATERIALS HI TECH