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Building sealant composition and application thereof

A sealant and composition technology, applied in the direction of aldehyde/ketone condensation polymer adhesives, adhesives, adhesive types, etc., can solve the problems of poor flame retardancy and applicability, and achieve good tensile bonding performance , long service life, good fluidity

Inactive Publication Date: 2018-11-02
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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  • Building sealant composition and application thereof
  • Building sealant composition and application thereof
  • Building sealant composition and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] This embodiment relates to a construction sealant composition 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]

[0071]

[007...

Embodiment 2

[0077] This embodiment relates to a construction sealant composition and a preparation method thereof, the sealant is composed of the following raw materials in parts by weight:

[0078] 48 parts of vinyl chloride-acrylate copolymers;

[0079] 34 parts of tert-butylphenolic tackifying resins;

[0080] 10 parts of illite powder with a particle size of 20 μm;

[0081] 3.5 parts of methylisothiazolinone;

[0082] 8 parts of fluff powder with a particle size of 15 μm;

[0083] 6.5 parts of triphenylmethane triisocyanate;

[0084] 3.5 parts of linseed gum;

[0085] 4.5 parts of tris (butoxyethyl) phosphate;

[0086] Dispersant FT-780.9 parts;

[0087] 3.5 parts of crosslinking agent;

[0088] Accelerator 1.2 parts;

[0089] 1.8 parts of antioxidant;

[0090] 0.45 parts of coupling agent.

[0091] The selection of crosslinking agent, coupling agent, accelerator and antioxidant in the above raw materials is shown in Table 2 below:

[0092] Table 2

[0093]

[0094] The...

Embodiment 3

[0099] This embodiment relates to a construction sealant composition and a preparation method thereof, the sealant is composed of the following raw materials in parts by weight:

[0100] 49 parts of vinyl chloride-acrylate copolymers;

[0101] 35 parts of tert-butylphenol-formaldehyde tackifying resins;

[0102] 11 parts of illite powder with a particle size of 25 μm;

[0103] 4 parts of methylisothiazolinone;

[0104] 9 parts of fluff powder with a particle size of 20 μm;

[0105] 7 parts of triphenylmethane triisocyanate;

[0106] 4 parts flaxseed gum;

[0107] 5 parts of tris (butoxyethyl) phosphate;

[0108] Dispersant FT-781 parts;

[0109] 4 parts of crosslinking agent;

[0110] Accelerator 1.3 parts;

[0111] Antioxidant 2 parts;

[0112] 0.5 parts of coupling agent.

[0113] The selection of crosslinking agent, coupling agent, accelerator and antioxidant in the above raw materials is shown in Table 3 below:

[0114] table 3

[0115]

[0116] The preparat...

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Abstract

The invention discloses a building sealant composition and application thereof and relates to the technical field of building sealants. The building sealant composition is prepared from the followingraw materials including a vinyl chloride-acrylate copolymer, tert-butyl phenolic tackifying resin, illite powder with the particle size being 20-30 microns, methylisothiazolinone, villus powder with the particle size being 15-30 microns, triphenylmethane triisocyanate, flaxseed gum, tris(butoxyethyl)phosphate, a dispersant FT-78, a crosslinking agent, an accelerator, an antioxidant and a couplingagent. The sealant provided by the invention is simple and convenient to prepare, rapid in surface drying speed, compact and stable in rubber layer crosslinking structure and good in stretching adhesive performance, is flame retardant, resists high-low temperature, water and weather, preserves heat, insulates sound, expels parasites, resists mould, is green and environmentally friendly, saves theenergy and is wide in application places and fields and long in service life.

Description

technical field [0001] The invention relates to the technical field of building sealants, in particular to a building sealant composition and its application. 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 weath...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J127/06C09J161/06C09J11/04C09J11/06C09J11/08
CPCC08L2201/02C08L2201/04C08L2201/08C09J11/04C09J11/06C09J11/08C09J127/06C08L61/06C08K5/46C08K5/521C08K5/29C08K3/34C08K13/02
Inventor 沈涛
Owner HEFEI LONGYANG AGRI TECH CO LTD
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