A preparation method of heat-resistant oxygen aging unsaturated polyester resin material for artificial stone
A polyester resin and unsaturated technology, which is applied in the field of preparation of heat-resistant oxygen-aging unsaturated polyester resin materials for artificial stones, can solve problems such as defects in stone mechanical properties, reduce resin mechanical properties, limit application fields, etc., and achieve excellent Heat and oxygen aging resistance, meet the requirements of mechanical properties, and reduce the effect of impact
Inactive Publication Date: 2020-10-09
湖北钊晟新材料科技有限公司
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Problems solved by technology
Yellowing not only affects the appearance of materials and limits its application fields, but also directly affects product sales and color quality
However, existing studies have found that pentaerythritol diisodecyl diphosphite (antioxidant 3010) can improve the heat and oxygen aging resistance of unsaturated resins, but this antioxidant can greatly reduce the resin's heat and oxygen aging resistance while improving the resin's heat and oxygen aging resistance Therefore, the application of antioxidant 3010 in the field of artificial stone production will lead to defects in the mechanical properties of the stone, which cannot meet the processing and use requirements of artificial stone
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[0016] Sample 1:
[0017] A preparation method for heat-resistant oxygen aging unsaturated polyester resin material for artificial stone, comprising the following steps:
[0018] (1) Weigh the following raw materials in parts by weight for later use: 100 parts of commercially available type 1 unsaturated polyester resin, 0.4 parts of cobalt isooctanoate accelerator, 1.5 parts of antioxidant 3010, 0.5 parts of light stabilizer HALS770, curing agent 3 parts of oxidized methyl ethyl ketone;
[0019] (2) Weigh them separately according to the proportion, add commercially available type 1 unsaturated polyester resin, accelerator cobalt isooctanoate, and stir in the container, then add antioxidant 3010, light stabilizer HALS770, and stir again;
[0020] (3) Put the material obtained after step (2) into the oven, set the temperature at 40 degrees Celsius, take it out until the air bubbles are completely eliminated, add the curing agent methyl ethyl ketone peroxide, stir and mix, and...
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The invention belongs to the field of artificial stone processing, and provides a method for preparing a heat-resistant, oxygen-aging unsaturated polyester resin material for artificial stone. The method proposes adding an antioxidant to the unsaturated polyester resin to improve the yellowing resistance of the resin, At the same time, light stabilizers are added to improve the mechanical properties of the resin. This method can effectively avoid the sharp drop in mechanical properties caused by the addition of antioxidants, so that the prepared unsaturated polyester resin materials for artificial stones have excellent thermal oxygen resistance. aging performance, but also meet the mechanical performance requirements of artificial stone preparation.
Description
technical field [0001] The invention belongs to the field of artificial stone processing, and in particular relates to a preparation method of a heat-resistant oxygen-aging unsaturated polyester resin material for artificial stone. Background technique [0002] Artificial stone is a resin-based composite material composed of inorganic phases such as quartz stone, granite, glass, and organic phases such as unsaturated resin. Unsaturated resin is used as the matrix material of artificial stone, and its performance and quality directly determine and affect artificial stone. The performance and production process of stone. [0003] Unsaturated polyester resin is a kind of thermosetting resin, which has been widely used in glass fiber reinforced plastics, artificial stone, handicrafts, coatings, buttons and other fields. However, unsaturated resin and its products will age due to various environmental factors such as light, heat, oxygen, moisture, and microorganisms. During the ...
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IPC IPC(8): C08L67/06C08K5/098C08K5/14C08K5/524
CPCC08K5/098C08K5/14C08K5/524C08L2201/08C08L67/06
Inventor 祁耀斌姚军龙朱海祥王月明
Owner 湖北钊晟新材料科技有限公司