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Normal-temperature quick-drying type double-component water-based pencil adhesive

A two-component, quick-drying technology, applied in the direction of adhesive types, polymer adhesive additives, non-polymer adhesive additives, etc., can solve problems such as shortening production time, achieve increased core adhesion, excellent Water and weather resistance, the effect of enhancing the bonding effect

Pending Publication Date: 2020-06-19
上海诺东新材料科技中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The pencil glue can be cured in a very short time and has higher bonding strength, thereby shortening the production time, but still requires a pressurization pressure of 0.7-1.0N / mm 2 , pressurized for 2h

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0018] As a preferred embodiment, by weight percentage, component A includes VAE emulsion 40-70%, water-based acrylic emulsion 2-20%, plasticizer 1-10%, hydroxyl-containing resin and / or hydroxyl-containing filler 0.5% -5%, preservative 0.05-0.15%, water balance.

[0019] The content of the water can be increased or decreased according to the viscosity requirement.

[0020] The VAE emulsion can be self-made or purchased, preferably, the VAE emulsion is selected from the model EP7000, EP 6300, EP 920, EP400, At least one of EP1400, VAE806, VAE707. in EP 7000, EP 6300, EP 920, EP400, The product brand of EP 1400 is Wacker; the VAE806 and VAE707 were purchased from Beijing Dongfang Petroleum Organic Chemicals.

[0021] As a preferred embodiment, the water-based acrylic emulsion can improve the adhesion to the pencil, and through the low polarity of the acrylic emulsion, it is compatible with the surface of the pen core and cooperates with other compo...

Embodiment 1

[0039] A normal temperature quick-drying two-component water-based pencil glue, including A component and B component, by weight percentage, A component includes 40% of VAE emulsion, 2% of water-based acrylic emulsion, plasticizer dioctyl oxalate 1% ester, 0.5% hydroxyl-containing resin and hydroxyl-containing filler, 0.05% preservative isothiazolone, and the balance of water. B component is isocyanate curing agent.

[0040] The VAE emulsion model is EP 7000; the model of the water-based acrylic emulsion is DSM Netherlands DSM Neocryl A-1127; the weight ratio of the hydroxyl-containing resin hydroxyethyl cellulose ether and the hydroxyl-containing filler cellulose nanocrystal is 1:1. The model of the hydroxyl resin hydroxyethyl cellulose ether is Tylose HH200NP2, and the model of the cellulose nanocrystal is NCV100, purchased from Celluforce.

[0041] The model of the isocyanate curing agent is Aquolin268, and the NCO content is 20-21wt%.

[0042] The preparation method o...

Embodiment 2

[0044] A normal temperature quick-drying two-component water-based pencil glue, including A component and B component, by weight percentage, A component includes 40% of VAE emulsion, 2% of water-based acrylic emulsion, plasticizer dioctyl oxalate 1% ester, 0.5% hydroxyl-containing resin and hydroxyl-containing filler, 0.05% preservative isothiazolone, and the balance of water. B component is isocyanate curing agent.

[0045] The VAE emulsion model is EP 7000; the model of the water-based acrylic emulsion is DSM Netherlands DSM Neocryl A-1127; the weight ratio of the hydroxyl-containing resin hydroxyethyl cellulose ether and the hydroxyl-containing filler cellulose nanocrystal is 1:1. The model of the hydroxyl resin hydroxyethyl cellulose ether is Tylose HH 200NP2, and the model of the cellulose nanocrystal is NCV100, purchased from Celluforce.

[0046] The model of the isocyanate curing agent is Aquolin268, and the NCO content is 20-21wt%.

[0047] The preparation method ...

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PUM

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Abstract

The invention belongs to the technical field of adhesives, and particularly relates to a normal-temperature quick-drying type double-component water-based pencil adhesive. The invention provides a normal-temperature quick-drying type double-component water-based pencil adhesive which comprises a component A and a component B. The component A comprises VAE emulsion, water-based acrylic emulsion, aplasticizer, hydroxyl-containing resin and / or hydroxyl-containing filler and a preservative. The component B is an isocyanate curing agent. Through mutual cooperation of the VAE emulsion, the water-based acrylic emulsion and the like, after the adhesive is completely cured, high adhesion force is achieved between pencil wood rods and between pencil leads, and meanwhile excellent water resistance and weather resistance are shown. The water-based acrylic emulsion can improve the adhesive force to a pencil, the surface of a low-polarity affinity pencil lead made of acrylic resin cooperates with other components to improve the lead adhesion effect, and the adhesive force between wood and wood and the adhesive force between the wood and the pencil lead are both considered.

Description

technical field [0001] The application belongs to the technical field of adhesives, and in particular, the invention relates to a normal-temperature quick-drying two-component water-based pencil glue. Background technique [0002] At present, the more common pencil adhesives in the market use white latex PVAc (polyvinyl acetate) and VAE (ethylene-polyvinyl acetate copolymer) emulsion as the main bonding materials. VAE emulsion is a combination of vinyl acetate (VAC) and ethylene (Ethylene) alone. The abbreviation of body emulsion copolymer, the VAE emulsion adhesive made of water-based acrylic emulsion, thickener, crosslinking agent, filler, etc., is made of it as the base material, non-toxic, odorless, non-flammable, non-explosive, and non-environmental Pollution, no health hazard, no fire hazard, it can be called an environment-friendly adhesive. [0003] In order to increase the curing rate, the current process of pencil glue improves this performance by formulating high...

Claims

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Application Information

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IPC IPC(8): C09J131/04C09J11/06C09J11/08
CPCC08L2201/08C08L2205/03C09J11/06C09J11/08C09J131/04C08L33/00C08L75/04C08K5/11C08K5/47
Inventor 丁锐李钢东周星婉曹莺黄天武曹燕
Owner 上海诺东新材料科技中心