Novel organic glass and preparation method thereof

A plexiglass, a new type of technology, applied in the field of new plexiglass and its preparation, can solve the problems of poor fire resistance and heat resistance, low product qualification rate, low production efficiency, etc., to improve flame retardancy and heat resistance, Effect of enhancing anti-fog performance, improving wear resistance and mechanical properties

Inactive Publication Date: 2017-10-24

HEFEI LIYUTAI GLASS PROD CO LTD

7 Cites 2 Cited by

AI-Extracted Technical Summary

Problems solved by technology

The existing plexiglass has poor fire resistance and heat resistance, and in the production process, t...

Abstract

The invention discloses a novel organic glass. The novel organic glass is prepared from the following raw materials in parts by weight: 18 to 25 parts of polymethyl methacrylate, 12 to 19 parts of epoxy resin, 25 to 35 parts of unsaturated polyester resin, 7 to 13 parts of lauric acid, 8 to 14 parts of ethylene-propylene-diene monomer(EPDM), 8 to 12 parts of cyclohexanone, 6 to 11 parts of cyclohexane, 4 to 7 parts of tetrabromophthalic anhydride, 3 to 6 parts of dioctyl phthalate, 2 to 3 parts of curing agent, 4 to 9 parts of filler, 2 to 5 parts of initiator, 1 to 3 parts of ultraviolet light absorbent, 1 to 2 parts of dispersant, 2 to 3 parts of plasticizer and 5 to 10 parts of anti-mist additive. According to the invention, the fire-resistance and heat-resistance of the product is effectively improved, the product has good stability performance and mechanical performance, meanwhile, the product has good anti-mist performance, the preparation process flow is simple, the operation is convenient, the operation efficiency is high and the percent of pass of the product is improved.

Technology Topic

L&D processChemistry +17

Examples

Experimental program(5)

Example Embodiment

[0025] Example 1

[0026] This embodiment relates to a new type of plexiglass, including the following raw materials in parts by weight: 18 parts of polymethyl methacrylate, 12 parts of epoxy resin, 25 parts of unsaturated polyester resin, 7 parts of lauric acid, EPDM rubber 8 parts, 8 parts of cyclohexanone, 6 parts of cyclohexane, 4 parts of tetrabromophthalic anhydride, 3 parts of dioctyl phthalate, 2 parts of curing agent, 4 parts of filler, 2 parts of initiator, ultraviolet light 1 part of absorbent, 1 part of dispersant, 2 parts of plasticizer, 5 parts of anti-fog additive.

[0027] Wherein, the initiator is azobisisobutyronitrile.

[0028] Wherein, the anti-fog additive includes the following components in parts by weight: 10 parts of acrylic acid, 18 parts of polyvinyl alcohol, and 9 parts of rhamnolipid.

[0029] Wherein, the ultraviolet absorber is nano silicon dioxide.

[0030] Wherein, the dispersant is sodium lauryl sulfate.

[0031] A method for preparing said novel plexiglass, comprising the steps of:

[0032] (1) Weigh polymethyl methacrylate, epoxy resin, unsaturated polyester resin, lauric acid, EPDM rubber, cyclohexanone, cyclohexane, tetrabromophthalic anhydride, Dioctyl phthalate, curing agent, filler, initiator, ultraviolet absorber, dispersant, plasticizer, anti-fog additive, spare;

[0033] (2) Stir and mix the plasticizer and unsaturated polyester resin for 10 minutes, then add epoxy resin and lauric acid, put it into the reaction kettle, heat to 80°C, stir for 20 minutes, and then ultrasonicate for 3 minutes to obtain the mixture Material A;

[0034] (3) Mix cyclohexanone and cyclohexane, put it into a high-speed disperser, add dispersant, stir for 7 minutes, then add polymethyl methacrylate and tetrabromophthalic anhydride, disperse for 10 minutes at high speed, Then add filler and disperse at high speed for 13 minutes to obtain mixture B;

[0035] (4) Put EPDM rubber and dioctyl phthalate into the reaction kettle to evacuate, add initiator, heat and stir for 5 minutes, then add mixture A, mixture B, ultraviolet absorber, anti-fog auxiliary agent, curing agent, stir and mix evenly to obtain a mixed slurry;

[0036] (5) Pour the mixed slurry obtained in step (4) into the mold, put it into a water heating box at 35°C for polymerization and solidification for 4 hours, slowly raise the temperature to 100°C, stop heating and wait until the water temperature naturally cools to room temperature, then demould and take it out Put it in clean water at room temperature for 5 days to eliminate internal stress and get the finished product.

[0037] Wherein, the degree of vacuum in the step (4) is 10 Pa.

Example Embodiment

[0038] Example 2

[0039] This embodiment relates to a new type of plexiglass, including the following raw materials in parts by weight: 25 parts of polymethyl methacrylate, 19 parts of epoxy resin, 35 parts of unsaturated polyester resin, 13 parts of lauric acid, EPDM rubber 14 parts, 12 parts of cyclohexanone, 11 parts of cyclohexane, 7 parts of tetrabromophthalic anhydride, 6 parts of dioctyl phthalate, 3 parts of curing agent, 9 parts of filler, 5 parts of initiator, ultraviolet light 3 parts of absorbent, 2 parts of dispersant, 3 parts of plasticizer, 10 parts of anti-fog additive.

[0040] Wherein, the initiator is azobisisobutyronitrile.

[0041] Wherein, the anti-fog additive includes the following components in parts by weight: 30 parts of acrylic acid, 27 parts of polyvinyl alcohol, and 13 parts of rhamnolipid.

[0042] Wherein, the ultraviolet absorber is nano silicon dioxide.

[0043] Wherein, the dispersant is sodium lauryl sulfate.

[0044] A method for preparing said novel plexiglass, comprising the steps of:

[0045] (1) Weigh polymethyl methacrylate, epoxy resin, unsaturated polyester resin, lauric acid, EPDM rubber, cyclohexanone, cyclohexane, tetrabromophthalic anhydride, Dioctyl phthalate, curing agent, filler, initiator, ultraviolet absorber, dispersant, plasticizer, anti-fog additive, spare;

[0046] (2) Stir and mix the plasticizer and unsaturated polyester resin for 20 minutes, then add epoxy resin and lauric acid, put it into the reaction kettle, heat to 90°C, stir for 30 minutes, and then ultrasonically treat for 8 minutes to obtain the mixture Material A;

[0047] (3) Mix cyclohexanone and cyclohexane, put it into a high-speed disperser, add dispersant, stir for 15 minutes, then add polymethyl methacrylate and tetrabromophthalic anhydride, and disperse for 20 minutes at high speed. Then add filler and disperse at high speed for 18 minutes to obtain mixture B;

[0048](4) Put EPDM rubber and dioctyl phthalate into the reaction kettle to evacuate, add initiator, heat and stir for 10 minutes, then add mixture A, mixture B, ultraviolet absorber, anti-fog auxiliary agent, curing agent, stir and mix evenly to obtain a mixed slurry;

[0049] (5) Pour the mixed slurry obtained in step (4) into the mold, put it into a water heating box at 55°C for polymerization and solidification for 6 hours, slowly raise the temperature to 100°C, stop heating and wait until the water temperature naturally cools to room temperature, then demould and take it out Put it in clean water at room temperature for 7 days to eliminate internal stress and get the finished product.

[0050] Wherein, the vacuum degree in the step (4) is 30pa.

Example Embodiment

[0051] Example 3

[0052] This embodiment relates to a new type of plexiglass, including the following raw materials in parts by weight: 21 parts of polymethyl methacrylate, 14 parts of epoxy resin, 28 parts of unsaturated polyester resin, 10 parts of lauric acid, EPDM rubber 9 parts, 9 parts of cyclohexanone, 8 parts of cyclohexane, 4.8 parts of tetrabromophthalic anhydride, 4 parts of dioctyl phthalate, 2.2 parts of curing agent, 5 parts of filler, 3 parts of initiator, ultraviolet light 1.5 parts of absorbent, 1.2 parts of dispersant, 2.3 parts of plasticizer, 7 parts of anti-fog additive.

[0053] Wherein, the initiator is azobisisobutyronitrile.

[0054] Wherein, the anti-fog additive includes the following components in parts by weight: 15 parts of acrylic acid, 20 parts of polyvinyl alcohol, and 10 parts of rhamnolipid.

[0055] Wherein, the ultraviolet absorber is nano silicon dioxide.

[0056] Wherein, the dispersant is sodium lauryl sulfate.

[0057] A method for preparing said novel plexiglass, comprising the steps of:

[0058] (1) Weigh polymethyl methacrylate, epoxy resin, unsaturated polyester resin, lauric acid, EPDM rubber, cyclohexanone, cyclohexane, tetrabromophthalic anhydride, Dioctyl phthalate, curing agent, filler, initiator, ultraviolet absorber, dispersant, plasticizer, anti-fog additive, spare;

[0059] (2) Stir and mix the plasticizer and unsaturated polyester resin for 12 minutes, then add epoxy resin and lauric acid, put it into the reaction kettle, heat to 83°C, stir for 23 minutes, and then ultrasonicate for 4 minutes to obtain the mixture Material A;

[0060] (3) Mix cyclohexanone and cyclohexane, put it into a high-speed disperser, add dispersant, stir for 8 minutes, then add polymethyl methacrylate and tetrabromophthalic anhydride, disperse for 12 minutes at high speed, Then add filler and disperse at high speed for 15 minutes to obtain mixture B;

[0061] (4) Put EPDM rubber and dioctyl phthalate into the reaction kettle to evacuate, add initiator, heat and stir for 6 minutes, then add mixture A, mixture B, ultraviolet absorber, anti-fog auxiliary agent, curing agent, stir and mix evenly to obtain a mixed slurry;

[0062] (5) Pour the mixed slurry obtained in step (4) into the mold, put it into a water heating box at 40°C for polymerization and solidification for 4.5 hours, slowly raise the temperature to 100°C, stop heating and wait until the water temperature naturally cools to room temperature, then demould and take it out Put it in clean water at room temperature for 5-7 days to eliminate internal stress and get the finished product.

[0063] Wherein, the degree of vacuum in the step (4) is 15pa.

PUM

Description & Claims & Application Information

We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.

Similar technology patents

High light transmittance antifog organic glass and preparation method thereof

InactiveCN108659437AImprove anti-fog performanceImprove anti-static ability

Owner:合肥钢骨玻璃制品有限公司

Heatproof flame-retardant insulating paint, and preparation method thereof

ActiveCN109705694AImprove flame retardancy and heat resistancereduce pollution

Owner:苏州远卓科技信息有限公司

Classification and recommendation of technical efficacy words

Improve flame retardancy and heat resistance

Heatproof flame-retardant insulating paint, and preparation method thereof

ActiveCN109705694AImprove flame retardancy and heat resistancereduce pollution

Owner:苏州远卓科技信息有限公司