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Waterproof and weatherproof building sealant

A sealant and weather-resistant technology, which is applied in the field of construction sealants, can solve the problems of applicability, poor flame retardancy, etc., and achieve the effects of long service life, good tensile bonding performance, and strong displacement capacity

Inactive Publication Date: 2018-12-18
HEFEI LONGYANG AGRI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of sealant uses antioxidants and anti-ultraviolet agents to improve the weather resistance of the sealant, and has good stability and reproducibility, but its flame retardancy is poor, and its applicability is affected

Method used

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  • Waterproof and weatherproof building sealant
  • Waterproof and weatherproof building sealant
  • Waterproof and weatherproof building sealant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] This embodiment relates to a waterproof and weather-resistant building sealant and a preparation method thereof. The sealant is composed of the following raw materials in parts by weight:

[0055] 46 parts of vinyl chloride-acrylate copolymers;

[0056] 30 parts of tert-butylphenol-formaldehyde tackifying resin;

[0057] 8 parts of illite powder with a particle size of 20 μm;

[0058] 3 parts of methylisothiazolinone;

[0059] 7 parts of fluff powder with a particle size of 15 μm;

[0060] 5.5 parts of triphenylmethane triisocyanate;

[0061] 3 parts flaxseed gum;

[0062] 4 parts of tris (butoxyethyl) phosphate;

[0063] Dispersant FT-780.8 parts;

[0064] 3 parts of cross-linking agent;

[0065] Accelerator 1 part;

[0066] 1.5 parts of antioxidant;

[0067] 0.4 parts of coupling agent.

[0068] The selection of crosslinking agent, coupling agent, accelerator and antioxidant in the above raw materials is shown in Table 1 below:

[0069] Table 1

[0070]

...

Embodiment 2

[0076] This embodiment relates to a waterproof and weather-resistant building sealant and a preparation method thereof. The sealant is composed of the following raw materials in parts by weight:

[0077] 48 parts of vinyl chloride-acrylate copolymers;

[0078] 34 parts of tert-butylphenolic tackifying resins;

[0079] 10 parts of illite powder with a particle size of 20 μm;

[0080] 3.5 parts of methylisothiazolinone;

[0081] 8 parts of fluff powder with a particle size of 15 μm;

[0082] 6.5 parts of triphenylmethane triisocyanate;

[0083] 3.5 parts of linseed gum;

[0084] 4.5 parts of tris (butoxyethyl) phosphate;

[0085] Dispersant FT-780.9 parts;

[0086] 3.5 parts of crosslinking agent;

[0087] Accelerator 1.2 parts;

[0088] 1.8 parts of antioxidant;

[0089] 0.45 parts of coupling agent.

[0090] The selection of crosslinking agent, coupling agent, accelerator and antioxidant in the above raw materials is shown in Table 2 below:

[0091] Table 2

[0092...

Embodiment 3

[0098] This embodiment relates to a waterproof and weather-resistant building sealant and a preparation method thereof. The sealant is composed of the following raw materials in parts by weight:

[0099] 49 parts of vinyl chloride-acrylate copolymers;

[0100] 35 parts of tert-butylphenol-formaldehyde tackifying resins;

[0101] 11 parts of illite powder with a particle size of 25 μm;

[0102] 4 parts of methylisothiazolinone;

[0103] 9 parts of fluff powder with a particle size of 20 μm;

[0104] 7 parts of triphenylmethane triisocyanate;

[0105] 4 parts flaxseed gum;

[0106] 5 parts of tris (butoxyethyl) phosphate;

[0107] Dispersant FT-781 parts;

[0108] 4 parts of crosslinking agent;

[0109] Accelerator 1.3 parts;

[0110] Antioxidant 2 parts;

[0111] 0.5 parts of coupling agent.

[0112] The selection of crosslinking agent, coupling agent, accelerator and antioxidant in the above raw materials is shown in Table 3 below:

[0113] table 3

[0114]

[0...

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Abstract

The invention discloses a waterproof and weatherproof building sealant, and relates to the technical field of building sealant, wherein the waterproof and weatherproof building sealant includes the following raw materials: a vinyl chloride-acrylate copolymer, tert-butyl phenolic tackifying resin, illite powder with the particle size of 20-30 [mu]m, methyl isothiazolinone, flocking powder with theparticle size of 15-30 [mu]m, triphenylmethane triisocyanate, flaxseed gum, tris(butoxyethyl)phosphate, a dispersant FT-78, a crosslinking agent, an accelerant, an antioxidant, and a coupling agent. The sealant has the advantages of simple and convenient preparation, fast surface drying speed, compact and stable cross-linking structure of an adhesive layer, good tensile bonding performance, flameretardancy, high and low temperature resistance, water prevention and weather resistance, heat preservation, sound insulation, insect expelling and mould resistance, green energy saving and environmental protection, wide application occasion fields and long service life.

Description

technical field [0001] The invention relates to the technical field of building sealants, in particular to a waterproof and weather-resistant building sealant. Background technique [0002] At present, most of the building sealants commonly used at home and abroad are polyurethane sealants and silicone rubber sealants. The production process of polyurethane sealant is complicated, the equipment requirements are high, and the investment is large. Moreover, due to the use of moisture curing principle, the storage stability of polyurethane sealant is poor. If the airtightness is not strict or the temperature is slightly high, it is easy to cure and fail. Polyurethane sealants have weak adhesion to vinyl materials such as PVC, EVA, PE and other common building materials, and the bonding strength often fails to meet the requirements. In addition, because the residual isocyanate of polyurethane sealant is harmful to human body, it is not environmentally friendly and has poor weat...

Claims

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Application Information

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IPC IPC(8): C09J127/06C09J161/06C09J11/06C09J11/04
CPCC08L2201/02C08L2201/04C08L2205/03C09J11/04C09J11/06C09J127/06C08L61/06C08K13/02C08K3/34C08K5/47C08K5/521
Inventor 沈涛
Owner HEFEI LONGYANG AGRI TECH CO LTD
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