High-strength and deformation-resistant TPO waterproof coiled material and preparation method thereof

A waterproof membrane and anti-deformation technology, applied in chemical instruments and methods, rubber layered products, layered products, etc., can solve problems such as large stress relaxation rate, large stress drop, and performance damage, and achieve a stress relaxation rate Small size, good low-temperature bendability, and good tensile properties

Pending Publication Date: 2022-04-05
潍坊市璇宝防水材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] CN108790350A discloses a modified TPO waterproof membrane and its preparation method, which improves the tear resistance and tensile resistance of the waterproof membrane, but its stress relaxation rate is relatively large, that is, under a certain constant temperature and pressure conditions , the stress decreases with the increase of time, which is reflected in the specific use environment, that is, after the construction of the waterproof membrane, it is affected by the pressure and temperature in the environment, which will cause its stress to decrease for a long time, resulting in damage to its performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] (1) Preparation of modified ethylene-1-hexene copolymer

[0042] Mix nano-chromium boride and mullite, add tetrapropoxysilane and grind to a particle size of 2 μm to obtain modified mullite, mix modified mullite with ethylene-1-hexene copolymer and heat to copolymerize The product is melted, kept in a molten state and kneaded in a kneader, and extruded by a screw to obtain a modified ethylene-1-hexene copolymer;

[0043] The nano-chromium boride particle size is 80nm;

[0044] The alumina content in the mullite is 76%;

[0045] The weight average molecular weight of the ethylene-1-hexene copolymer is 150000-170000g / mol;

[0046] Described nano chromium boride and mullite mass ratio are 2:5;

[0047] Described tetrapropoxysilane and mullite mass ratio are 1:200;

[0048] The mass ratio of the modified mullite to the ethylene-1-hexene copolymer is 1:10.

[0049] (2) Preparation of reinforcement layer

[0050] The reinforcing layer includes the following components i...

Embodiment 2

[0073] (1) Preparation of modified ethylene-1-hexene copolymer

[0074] Mix nano-chromium boride and mullite, add tetrapropoxysilane and grind to a particle size of 1.5 μm to obtain modified mullite, mix modified mullite with ethylene-1-hexene copolymer and heat to The copolymer is melted, kept in a molten state and kneaded in a kneader, and extruded by a screw to obtain a modified ethylene-1-hexene copolymer;

[0075] The nano-chromium boride particle size is 70nm;

[0076] The alumina content in the mullite is 75%;

[0077] The weight average molecular weight of the ethylene-1-hexene copolymer is 140000-160000g / mol;

[0078] Described nano chromium boride and mullite mass ratio are 1.5:5;

[0079] Described tetrapropoxysilane and mullite mass ratio are 1:180;

[0080] The mass ratio of the modified mullite to the ethylene-1-hexene copolymer is 1:8.

[0081] (2) Preparation of reinforcement layer

[0082] The reinforcing layer includes the following components in parts ...

Embodiment 3

[0105] (1) Preparation of modified ethylene-1-hexene copolymer

[0106] Mix nano-chromium boride and mullite, add tetrapropoxysilane and grind to a particle size of 2.5 μm to obtain modified mullite, mix modified mullite with ethylene-1-hexene copolymer and heat to The copolymer is melted, kept in a molten state and kneaded in a kneader, and extruded by a screw to obtain a modified ethylene-1-hexene copolymer;

[0107] The nano-chromium boride particle size is 90nm;

[0108] The alumina content in the mullite is 77%;

[0109] The weight average molecular weight of the ethylene-1-hexene copolymer is 160000-180000g / mol;

[0110] Described nano-chromium boride and mullite mass ratio are 2.5:5;

[0111] Described tetrapropoxysilane and mullite mass ratio are 1:220;

[0112] The mass ratio of the modified mullite to the ethylene-1-hexene copolymer is 1:12.

[0113] (2) Preparation of reinforcement layer

[0114] The reinforcing layer includes the following components in parts...

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Abstract

The invention discloses a high-strength and deformation-resistant TPO waterproof roll. The waterproof roll structurally comprises a reinforcing layer, an upper TPO material layer, a fabric inner reinforcing layer and a lower TPO material layer from top to bottom. The invention further discloses a preparation method of the high-strength and deformation-resistant TPO waterproof coiled material. The preparation method comprises the steps of preparing the modified ethylene-1-hexene copolymer, preparing the reinforcing layer, preparing the TPO material layer and preparing the waterproof coiled material. The prepared waterproof coiled material is good in tensile property, the maximum tensile force is 953-960 N/cm, and the elongation at the maximum tensile force is 56-57%; the thermal treatment dimensional change rate of the waterproof coiled material prepared by the invention is 0.07-0.09%.

Description

technical field [0001] The invention relates to a high-strength, deformation-resistant TPO waterproof coiled material and a preparation method thereof, belonging to the field of waterproof coiled materials. Background technique [0002] TPO waterproof membrane, that is, thermoplastic polyolefin waterproof membrane, is based on thermoplastic polyolefin (TPO) synthetic resin that combines ethylene-propylene rubber and polypropylene with advanced polymerization technology, and adds antioxidants and anti-aging agents. , a new type of waterproof membrane made of softener, polyester fiber mesh cloth can be used as an internal reinforcement material to make a reinforced waterproof membrane, which belongs to the waterproof product of synthetic polymer waterproof membrane. [0003] In practical applications, this product has comprehensive characteristics such as anti-aging, high tensile strength, large elongation, wet roof construction, no protective layer for exposure, convenient co...

Claims

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Application Information

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IPC IPC(8): B32B25/14
Inventor 隋永滨
Owner 潍坊市璇宝防水材料有限公司
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