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Formaldehyde-free aqueous jointing agent and preparation method therefor

A jointing agent, water-based technology, applied in the field of formaldehyde-free water-based jointing agent, can solve the problems of strong pungent odor, endangering human health and environmental safety, etc., and achieve the effect of not easy to hang, easy to construct, and fast to set

Inactive Publication Date: 2017-04-26
LANZHOU KETIAN ENVIRONMENTAL PROTECTION ENERGY SAVING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing jointing agent generally uses oily epoxy resin as the main agent, and oily solvent as the active diluent, which has a strong pungent smell and endangers human health and environmental safety.

Method used

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  • Formaldehyde-free aqueous jointing agent and preparation method therefor

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preparation example Construction

[0069] The preparation method of above-mentioned formaldehyde-free aqueous jointing agent, comprises the following steps:

[0070] Preparation of the main agent: disperse the above-mentioned water-based epoxy resin, antifreeze agent, dispersant, wetting agent and defoamer at a medium speed for 5-10 minutes until uniform, and then add the above-mentioned main agent by weight of talc Powder, quartz sand, heavy calcium, attapulgite and wood fiber, disperse at medium and high speed for 10-20 minutes until uniform, and finally slowly add deionized water of the above main agent by weight to adjust the viscosity, and stir evenly.

[0071] Preparation of curing agent: disperse the water-based epoxy curing agent, antifreeze agent, dispersant, wetting agent and defoamer at a medium speed for 5-10 minutes to uniformity by weight of the above curing agent, and then add the above curing agent by weight Talc powder, quartz sand, heavy calcium, attapulgite and wood fiber, disperse at medium ...

Embodiment 1

[0074] A formaldehyde-free water-based jointing agent, which is made by mixing the main agent and curing agent, including:

[0075] The main agent is composed of the following components by weight:

[0076] Waterborne epoxy resin 17.50

[0077] Antifreeze 1.00

[0078] Dispersant 0.50

[0079] Wetting agent 0.30

[0080] Defoamer 0.20

[0081] Talc powder 20.00

[0082] Quartz sand 10.00

[0083] Heavy calcium 43.00

[0084] Attapulgite 0.80

[0085] Wood fiber 0.70

[0086] Deionized water 6.00

[0087] Curing agent is made up of following components by weight:

[0088] Waterborne epoxy curing agent 16.00

[0089] Antifreeze 0.50

[0090] Dispersant 0.30

[0091] Wetting agent 0.30

[0092] Defoamer 0.20

[0093] Talc powder 25.00

[0094] Quartz sand 12.00

[0095] Heavy calcium 33.00

[0096] Attapulgite 0.80

[0097] Wood fiber 0.70

[0098] Hydroxyethylcellulose 0.40

[0099] Deionized water 10.80

[0100] The mixing ratio of the above-mentioned main a...

Embodiment 2

[0106] A formaldehyde-free water-based jointing agent, which is made by mixing the main agent and curing agent, including:

[0107] The main agent is composed of the following components by weight:

[0108] Water-based epoxy resin 22.00

[0109] Antifreeze 1.20

[0110] Dispersant 0.60

[0111] Wetting agent 0.40

[0112] Defoamer 0.40

[0113] Talc powder 12.00

[0114] Quartz sand 10.00

[0115] Heavy calcium 41.00

[0116] Attapulgite 0.80

[0117] Wood fiber 0.70

[0118] Deionized water 10.90

[0119] Curing agent is made up of following components by weight:

[0120] Waterborne epoxy curing agent 20.50

[0121] Antifreeze 0.50

[0122] Dispersant 0.60

[0123] Wetting agent 0.40

[0124] Defoamer 0.30

[0125] Talc powder 25.00

[0126] Quartz sand 12.00

[0127] Heavy calcium 26.50

[0128] Attapulgite 0.70

[0129] Wood fiber 0.60

[0130] Hydroxyethylcellulose 0.50

[0131] Deionized water 12.40

[0132] The mixing ratio of the above-mentioned ma...

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Abstract

The invention discloses a formaldehyde-free aqueous jointing agent and a preparation method therefor. The formaldehyde-free aqueous jointing agent is prepared through mixing a main agent and a curing agent according to the mass ratio of (0.6 to 1.8): (0.8 to 1.6). According to the formaldehyde-free aqueous jointing agent, an aqueous bi-component macromolecular gluing technology is adopted, the product forms high-density reticular glue films at joints, and the glue films can be telescoped synchronous to sheet materials in case of climatic changes, so that the product has the characteristics that the sizing speed is high, the construction is easy, the sagging is difficult, the adhesive power is high, the cracking resistance is excellent, and the like. The formaldehyde-free aqueous jointing agent is applicable to the treatment on joints and easily-cracking parts of indoor and outdoor decorative materials and can play excellent roles in carrying out bonding and preventing cracking through injecting the product into gaps of the same or different materials such as wood, bricks and stones, gypsum boards, calcium silicate and cement wall faces.

Description

technical field [0001] The invention relates to the technical field of paint auxiliary materials, in particular to a formaldehyde-free water-based jointing agent and a preparation method thereof. Background technique [0002] Joint compound is a new type of coating product that connects the gaps of decorative materials. It has excellent crack resistance and adhesion, good flexibility, strong hiding power, corrosion resistance, no sag, no color, and easy construction. The jointing agent is suitable for bonding the gaps between different decoration materials such as gypsum board, calcium silicate board, masonry, wood and metal. The existing jointing agent generally uses oily epoxy resin as the main agent, and oily solvent as the active diluent, which has a strong pungent smell and endangers human health and environmental safety. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the present invention proposes a formaldehyde-free water-based join...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J163/00C09J11/08C09J11/04
CPCC09J163/00C08L2205/035C08L2205/16C09J11/04C09J11/08C08L97/02C08L1/284C08K13/02C08K3/34C08K3/36C08K2003/265C08K3/346
Inventor 韩耑壮王福强赵曦李维虎戴家兵
Owner LANZHOU KETIAN ENVIRONMENTAL PROTECTION ENERGY SAVING TECH CO LTD
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