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Preparation method for base material of composite modified unsaturated polyester wind-proof and dust suppression plate

A compound modification and unsaturated technology, which is applied in the direction of buildings, fences, building types, etc., can solve the problems of short life, fast aging of windshield and dust suppression boards, etc.

Inactive Publication Date: 2012-10-24
LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a composite modified unsaturated polyester material, the composite modified material is applied to the base material of the windshield and dust suppression board, and the problem of fast aging speed and short life of the unsaturated polyester windshield and dust suppression board is solved problem, and nano-silica can strengthen and toughen unsaturated polyester resin at the same time, optimize the mass ratio of unsaturated polyester to glass fiber mat, curing agent and accelerator, anti-aging agent, The preparation method of composite modified unsaturated polyester windshield and dust suppression board base material with better comprehensive performance can be obtained by different proportions and process conditions of various components such as flame retardants, which provides a feasible solution for the industrialization of new windshield and dust suppression boards. Sexual programs and rationale

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0008] Weigh a certain amount of unsaturated polyester resin, add a small amount of color paste, stir evenly with an electric stirrer, then add decabromodiphenyl ether 6%, aluminum hydroxide 2%, magnesium hydroxide 2%, UV-91.6% , nano silicon dioxide 0.5%, cobalt isooctanoate 0.5% and methyl ethyl ketone peroxide 1%, stir quickly evenly, then evenly coat on the glass fiber mat, the mass ratio of unsaturated polyester and glass fiber mat is 3: 1, in After curing at room temperature for 3 hours, the prepared composite modified unsaturated polyester windshield and dust suppression board base material is obtained, and its physical properties are: tensile strength 89.5MPa, impact strength 58.8kJ / m 2 , Oxygen index 33.7, tensile strength change rate after 200 hours of ultraviolet radiation -13.26.

Embodiment approach 2

[0010] Weigh a certain amount of unsaturated polyester resin, add a small amount of color paste, stir evenly with an electric stirrer, then add decabromodiphenyl ether 6%, aluminum hydroxide 2%, magnesium hydroxide 2%, UV-9 1.2 %, nano silicon dioxide 1%, cobalt isooctanoate 0.5% and methyl ethyl ketone peroxide 1%, stir quickly evenly, and then evenly coat on the glass fiber mat, the mass ratio of unsaturated polyester and glass fiber mat is 3: 1, After curing at room temperature for 3 hours, the prepared composite modified unsaturated polyester windshield and dust suppression board base material is obtained, and its physical properties are: tensile strength 96.5MPa, impact strength 62.2kJ / m 2 , Oxygen index 32.3, tensile strength change rate after 200 hours of ultraviolet radiation -10.75%.

Embodiment approach 3

[0012] Weigh a certain amount of unsaturated polyester resin, add a small amount of color paste, stir evenly with an electric stirrer, then add decabromodiphenyl ether 6%, aluminum hydroxide 2%, magnesium hydroxide 2%, UV-9 0.8 %, nano silicon dioxide 1%, cobalt isooctanoate 0.5% and methyl ethyl ketone peroxide 1%, stir quickly evenly, and then evenly coat on the glass fiber mat, the mass ratio of unsaturated polyester and glass fiber mat is 3: 1, After curing at room temperature for 3 hours, the prepared composite modified unsaturated polyester windshield and dust suppression board base material is obtained, and its physical properties are: tensile strength 102.3MPa, impact strength 59.7kJ / m 2 , Oxygen index 30.8, tensile strength change rate after 200 hours of ultraviolet radiation -9.39%.

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Abstract

The invention relates to a composite modified unsaturated polyester material which is applied to a base material of a wind-proof and dust suppression plate to solve the problems that an unsaturated polyester wind-proof and dust suppression plate is high in aging speed and short in service life. A preparation method for the base material of the composite modified unsaturated polyester wind-proof and dust suppression plate comprises the following steps of: weighing a certain amount of unsaturated polyester resin, adding a small amount of color paste, mixing uniformly by using an electric mixer, then sequentially adding a modified material, an accelerating agent and a curing agent according to proper mass percentages, as well as 6% of decabromodiphenyl ether, 2% of aluminum hydroxide, 2% of magnesium hydroxide, 0.4-1.6% of UV-9, 0.5-2.5% of nano silica, 0.5% of cobalt iso-octoate and 1% of methyl ethyl ketone peroxide, rapidly mixing uniformly, coating the solution on a glass fiber mat uniformly with the mass ratio of composite modified unsaturated polyester to the glass fiber mat being 3:1, and curing for 3h at a room temperature to obtain the prepared base material of the composite modified unsaturated polyester wind-proof and dust suppression plate. The additive amount and the proportion of the nano silica and the UV-9 can be properly controlled so as to improve the aging resistance of the wind-proof and dust suppression plate and ensure the wind-proof and dust suppression plate to have more excellent comprehensive performance.

Description

technical field [0001] The invention relates to a method for preparing a base material of a composite modified unsaturated polyester wind-shielding and dust-suppressing board, and belongs to the technical field of preparing the base material of a modified unsaturated polyester wind-shielding and dust-suppressing board. Background technique [0002] With the rapid development of my country's economy, the storage and transportation of bulk materials such as coal, mineral powder, and sand ash continue to increase, and the resulting dust has attracted more and more people's attention. The technical measures are: surface covering, spray technology and windshield dust suppression board technology. The first two measures require repeated investment, and the effect is not good, and the spray technology still has the problem of winter crusting. The wind and dust suppression technology board can effectively solve the above problems. Not only the effect is good, but also the appearanc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18C08L67/06C08K13/02C08K3/36C08K5/132E04H17/14
Inventor 周莉储刚陈文艺张建中王永红
Owner LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY