Microfibrillation of wood‐derived materials: Development of a new slope mortar spraying method usingcellulose(MFC).

Nippon Paper Industries Co., Ltd.

Nippon Paper Industries Co., Ltd.(President &President and Representative Director: Toru Nozawa,head office : Chiyoda-ku, Tokyo, hereinafter referred to as"the Company”) is pleased to announce that it has announced that it has announced that it will cooperate with Wright Industries Co., Ltd. and microfibrillatedcellulose(hereinafter referred to as"MFC”) We have developed a new slope mortar spraying method using . This makes it possible to easily suppress cracks (cracks) that occur during slope mortar spraying.

MFC is a cellulose fiber that can be customized in fiber width from nano to micro order. It uses the same wood-derived raw materials as the CompanyCellulose nanofiber(CNF), and can be manufactured according to each application, such as viscosity, transparency, water retention, gel feel, etc., and is relatively inexpensive, so it can be used in various industrial formulations and food and cosmetic additives, as well as suitable for mass production and mass use. ^※1

In the conventional slope mortar spraying method, it was common to spray water after spraying to suppress cracks that tend to occur due to drying, but it is said that crack control is not sufficient due to reasons such as water flowing down due to slope on slopes. Therefore, when we evaluated the effect of spraying viscous TEMPO oxidized MFC^*2 water dispersion to retain water on the mortar surface and suppress cracking, we were able to clearly confirm the effect.



*1: Comparison between MFC and CNF

*2:cellulose(raw material pulp) oxidized by TEMPO catalyst and produced by minor defiberization

*3: NETIS registration information

[Registration Details]

Registration Number: HK-240016-A

・ Technical name: Microfibrilcellulose(MFC) blended curing

・ Classification:Mortar spraying work

・ Category: Material