Hot-pressing forming artificial stone material and preparation method thereof
A technology of thermoforming and artificial stone, which is applied in the field of artificial stone materials and can solve problems such as expensive extrusion equipment
Active Publication Date: 2012-06-27
美高微球(南通)科技有限公司
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[0006] In Chinese patent 98810591.8, it relates to the method of producing acrylic artificial marble from acrylic sheet molding material or prefabricated integral molding compound. Out of equipment
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[0021] The thermocompression-formed artificial stone material and its forming method of the present invention will now be described in more detail than outlined above. Those skilled in the art can understand other potential objects and advantages of the present invention.
[0022] According to a preferred example of the present invention, the thermoformed artificial stone material is mainly composed of resin, filler, curing agent, release agent, and thickener. Wherein said resin may be an unsaturated polyester resin, and / or vinyl ester resin. The resin may be ortho-phthalic, iso-phthalic, para-phthalic or contain neopentyl glycol-based resins. This resin is an unsaturated polyester resin formed by polycondensation of saturated and unsaturated dibasic acids (anhydrides) and dibasic alcohols, wherein the saturated acids can be o-phthalic, m-phthalic, or p-phthalic; And the glycols can be ethylene glycol, propylene glycol, methylpropanediol, diethylene glycol, neopentyl glycols...
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Abstract
An artificial stone material formed through hot pressing is made from resin, filler, curing agent, release agent and thickening agent, wherein the resin is unsaturated polyester resin or vinyl ester resin; the filler is power material made from one or a plurality of aluminum hydroxide, calcium carbonate, quartz and talcum, and the dosage of the filler is 27 to 445 percent of the weight of the resin; the curing agent is initiator (peroxide or azo compound) used in unsaturated polyester with the dosage occupying 0.3 to 3.9 percent of the weight of the resin; the release agent is metallic stearate with the dosage occupying 0.6 to 7.8 percent of the weight of the resin; and the thickening agent is the oxide or the hydroxide of divalent metal with the dosage occupying 0.2 to 8.7 percent of the weight of the resin. The artificial stone material also has low shrink additive, macromolecular compound; moreover, glass fiber, carbon fiber, metal fiber, basalt fiber and boron fiber as well as plastic granules of different dimensions and colors can also be added in the artificial stone material. In addition, the invention also relates to a preparation method of the artificial stone material.
Description
field of invention [0001] The present invention generally relates to an artificial stone material, in particular to an artificial stone material suitable for hot-pressing production and a preparation method thereof. Background technique [0002] At present, most of the artificial marbles used in large quantities are suitable for casting and curing production processes at room temperature. The loss and waste of resources caused by cutting and grinding in the production process is relatively large. According to statistics, the product loss due to the production process is 20%. At the same time, there are many defects such as the surrounding environment pollution caused by the solid dust in the processing process. In addition, because there is no unified standard for ingredients, manufacturers sometimes add toxic dyes to raw materials. [0003] Of course, there are also artificial marbles that are formed by thermocompression. For example, in the Chinese patent No. 00128188.7...
Claims
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IPC IPC(8): C08L67/06C08L101/02C08K5/23C08J5/00C08L25/06C08L23/06C08L33/12C08L31/04
Inventor 许培圣金宝华
Owner 美高微球(南通)科技有限公司