Molded product and production method thereof

A molding product and molding technology, applied in the field of toilet cover and its preparation, can solve the problems of high manufacturing cost, high energy consumption of mold heating, long resin curing reaction time, etc., and achieve low cost, reduced usage, and fast curing and molding process. Effect

A molding product and molding technology, applied in the field of toilet cover and its preparation, can solve the problems of high manufacturing cost, high energy consumption of mold heating, long resin curing reaction time, etc., and achieve low cost, reduced usage, and fast curing and molding process. Effect

CN107629474AInactive Publication Date: 2018-01-26GUIZHOU TOPSEAT TECH CO LTD
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  • Molded product and production method thereof
  • Molded product and production method thereof
  • Molded product and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] The molded article provided by this embodiment is a toilet seat, and its structure is as follows: figure 1 As shown, it includes a core 141 and a shell 142 that completely surrounds the core. Wherein, the core part 141 is molded from the first mixture comprising the following components: 8 parts by weight of Novalac phenolic resin powder, 92 parts by weight of rice straw powder with a particle size of 10 mesh; the shell part 142 is formed by the second mixture comprising the following components Formed by molding: 8 parts by weight of Novalac phenolic resin powder, 92 parts by weight of rice straw powder with a particle size of 60 mesh. Wherein, the water content of the rice straw powder is 2-9%.

[0045] The toilet cover is formed by a closed molding method, and its specific preparation method includes the following steps:

[0046] (1) Prepare a first mixture for the core 141 and a second mixture for the shell 142;

[0047] (2) laying the second mixture layer, the ...

Embodiment 2

[0053] The difference between this embodiment and Embodiment 1 is that the core part 141 is molded from the first mixture comprising the following components: 30 parts by weight of Novalac phenolic resin powder, 70 parts by weight of rice straw powder with a particle size of 40 mesh; shell part 142 Molded from the second mixture comprising: 30 parts by weight of Novalac phenolic resin powder, 70 parts by weight of rice straw powder with a particle size of 300 mesh and 1 part by weight of zinc stearate.

Embodiment 3

[0055] The difference between this embodiment and Embodiment 1 is that the core part 141 is molded from the first mixture comprising the following components: 8 parts by weight of Novalac phenolic resin powder, 92 parts by weight of rice straw powder with a particle size of 5 mesh; shell part 142 Molded from the second mixture comprising: 20 parts by weight of Novalac phenolic resin powder, 80 parts by weight of rice straw powder with a particle size of 80 mesh and 0.5 part by weight of zinc stearate.

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Abstract

The invention provides a molded product and a production method thereof. The molded product comprises a core part and a shell part at least partially wrapping the core part, and the core part is obtained through compression molding of a first mixture comprising 8-30 parts by weight of thermosetting resin and 70-92 parts by weight of straw powder having a first granularity; and the shell part is obtained through compression molding of a second mixture comprising 8-30 parts by weight of the thermosetting resin and 70-92 parts by weight of straw powder having a second granularity, wherein the first granularity is more than the second granularity. The method comprises the following steps: 1, respectively preparing the first mixture and the second mixture for the core part and the shell part; 2, sequentially adding the first mixture and the second mixture into the cavity of a die, and allowing the first mixture to be at least partially wrapped with the second mixture; and 3, carrying out compression molding in the die cavity in an airtight and sealed state. The molded product and the production method thereof have the advantage of low manufacturing cost.

Description

technical field [0001] The present invention relates to a molded product and a preparation method thereof, in particular to a toilet lid molded from a mixture comprising straw powder and a thermosetting resin and a preparation method thereof. Background technique [0002] Existing toilet lid (return lid and seat ring) adopt following material and preparation method usually: a, the injection molding of thermoplastic resins such as ABS, polypropylene, polystyrene; molding); c, machining the MDF to the desired shape; d, mixing wood powder with urea-formaldehyde resin or phenolic resin and then molding. [0003] In molded wood toilet seats waste wood from wood mills is used in most cases to provide the cellulose, but raw wood is also used in some cases. MDF, which is used to make toilet lids and other products, is primarily made from raw wood rather than waste wood from lumber mills. In addition, some artificial panels disclosed in patent documents use straw such as wheat or r...

Claims

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Application Information

Patent Timeline
26 Jan 2018
Publication
CN107629474A
IPC
C08L97/02; C08L61/06; C08L91/06; C08K5/098; A47K13/00; B29C43/00; B29C43/18; B29C43/36
Inventors
吴成东; η†ŠηŽ²