RU2389698C1 - Lubricating agent for glass and basalt fibre - Google Patents

Abstract

FIELD: chemistry.

SUBSTANCE: invention relates to chemical industry and processing glass fibre, and specifically to lubricating agents which can be used for glass- and basalt straight and spliced rovings for reinforcing fibre glass, chopped glass- and basalt fibres for brake plates of motor cars or glass-fibre mats, low-twist textile fibre. The lubricating agent for glass and basalt fibre has the following ratio of components, in wt %: diamide formaldehyde resin DTU-TST-23 2.0-5.0; MAS-4 lubricant 3.0-5.0; organosilanes 0.1-0.6; acetic acid 0.2-0.3; water - the rest. The organosilanes used are in form of gamma-methacryloxypropyl-trimethoxysilane or gamma-glycide-oxypropyl-trimethoxysilane and aminopropyl-trimethoxydilane.

EFFECT: reduced power consumption and time for preparing the lubricating agent.

7 ex

Description

The invention relates to the chemical industry and the processing of fiberglass, and in particular to sizing agents that can be used for glass and basalt straight and grooved rovings for reinforcing fiberglass, chopped glass and basalt threads for brake pads of cars or fiberglass, low-twisted textile thread.

A fiber glass sizing agent is known containing dextrinized corn starch, as an emollient, an aqueous dispersion of 1- (2-aminoethyl) -2-dentadecyl-2-imidazoline or a mixture of polyethylene glycol derivatives of 1- (2-aminoethyl) -2-heptadecenyl-2-imidazoline, polyvinyl alcohol, gelatin, hydrogenated vegetable oil salomas, as an emulsifier a mixture of polyethylene glycol ethers of anhydrogen phosphate monooleate, dicyandiamide formaldehyde resin, antifoam based on polymethylsiloxane, formic and acetic acid and water, additionally contains a water repellent (for example, an alcohol solution of the main mixed chromic salt of methacrylic and hydrochloric acids) in the following ratio of components, wt.%:

dextrinized corn starch 3-9 softener 0.15-1.2 polyvinyl alcohol 0.3-1.0 gelatin 0.03-0.08 salomas 1.0-3.5 a mixture of polyethylene glycol ethers of anhydrogen phosphate monooleate 0.15-0.4 polymethylsiloxane antifoam 0.0125-0.0250 formic acid 0.01-0.02 acetic acid 0.007-0.03 dicyandiamide formaldehyde resin 0.1-0.3 water repellent 0.1-0.4 water rest

(RF patent No. 2015126, publ. 06/30/1994).

The disadvantage of this sizing is the long duration and complexity of its preparation, as well as high energy consumption.

Closest to the claimed invention is a sizing agent for processing glass fiber, including gamma-aminopropyltriethoxysilane AGM-9, vinyltriethoxysilane GVS-9, emulsol T, dicyandiamideformaldehyde resin DCU, dibutylsebacinate DBS, the preparation additional acid and water, the following ratio of components, wt. %

Gamma-aminopropyltriethoxysilane AGM 9 0.35-0.4 Vinyltriethoxysilane dhw 9 0.35-0.5 Dicyandiamide formaldehyde resin DCU 1.8-2.3 Emulsol T 0.5-1.0 Dibutylsebacinate DBS 1.0-2.0 The drug OS 20 1.2-2.0 Acetic acid 0.1-0.15 Soapstock 1.5-2.5 Water - the rest

(RF patent No. 2101241, IPC С03С 25/02, publ. 10.01.1998).

The disadvantage of this sizing is the high energy consumption and the duration of preparation of the sizing.

The technical result, which the invention is directed to, is to reduce energy consumption and time in the preparation of a universal base for sizing.

The specified technical result is achieved by the fact that the sizing agent for processing glass and basalt fiber, including DCU dicyandiamide formaldehyde resin, lubricant, organosilanes, acetic acid and water, contains MAC-4, DCU-TST-23 diamide formaldehyde resin, acetic acid and acetic acid in the following ratio of components wt.%

diamide-formaldehyde resin DCU-TST-23 0.7-5.0 MAC-4 0.7-5.0 organosilanes 0.1-0.6 acetic acid 0.01-0.3 water rest

In this case, gamma-methacryloxypropyltrimethoxysilane or gamma-glycidoxypropyltrimethoxysilane and gamma-aminopropyltriethoxysilane are used as organosilanes.

The process of preparing a universal base for a sizing for processing glass and basalt fiber consists of the stages:

1. Preparation of dressings.

2. Preparation of emulsion concentrate.

3. Mixing the components of the composition.

I. Preparation of dressings

Pour 600 kg of distilled water at a temperature of 15-30 ° C into a mixer No. 1 with an anchor or propeller stirrer and turn on the stirrer at a speed of 50-150 rpm. Add acetic acid, mix for at least 10 minutes and slowly add organosilane or a mixture of organosilanes. Stir for at least 25 minutes.

II. Preparation of emulsion concentrate. Pour 100 kg of distilled water at a temperature of 45-50 ° C into mixer No. 2 with a propeller mixer, turn on the mixer at a speed of 50-150 rpm and add MAC-4, mix for at least 15 minutes.

III. Mixing the components of the composition. In the mixer No. 1 with the hydrolyzate of silane (silanes) (item 1) add the emulsion MAS-4 (item 2), DCU-TST-23 and the residual amount of water. Stir for at least 10 minutes.

Examples of the preparation of compositions and application of this framework

No. p / p Universal base for sizing for processing glass and basalt fiber Scope of glass and basalt fiber Mass fraction of sizing on fiberglass,% Component Name Wt% one DCU-TST-23 0.7 Rowings for glass and basalt plastics obtained 0.30-0.70 along the middle layer of the roving bay, 0.4-0.7 for MAC-4 0.7 Gamma-methacryloxypropyltrimethoxysilane 0.04 Gamma-glycidoxypropyltrimethoxysilane 0.06 winding and pultrusion methods based on polyester and epoxy resins; extrusion methods based on polybutylene terephthalate; glass fiber for fabrics for polyester and epoxy resins glass fiber Distilled water The rest is up to 100 2 DCU-TST-23 2.85 Roving for glass and basalt plastics obtained by winding and pultrusion methods based on polyester and 0.30-0.70 along the middle layer of the roving bay, 0.4-0.7 for glass fiber MAC-4 2.85 Gamma-methacryloxypropyltrimethoxysilane 0.15 Gamma-glycidoxypropyltrimethoxysilane 0.2 Acetic acid, concentrated 0.155 Distilled water The rest is up to 100 epoxy resins, extruded on the basis of polybutylene terephthalate, glass fiber for fabrics for polyester and epoxy resins 3 DCU-TST-23 5,0 Rowings for glass-filled polyamide 6, polypropylene, polybutylene phthalate obtained by extrusion, chopped glass for friction products 0.4-0.7 in the middle layer of rovings, 0.3-0.8 for chopped glass MAC-4 5,0 Gamma-methacryloxypropyltrimethoxysilane 0.2 Acetic acid, concentrated 0.3 Distilled water The rest is up to 100 four DCU-TST-23 0.7 Chopped yarn for the production of fiberglass according to the method of paper technology, 0.1-0.4 MAC-4 0.7 Gamma-aminopropyltriethoxysilane 0.1 Acetic acid, concentrated 0.01 Distilled water The rest is up to 100 glass roving for texturing 5 DCU-TST-23 2.85 Rowings for glass-filled polyamide 6, polypropylene, polybutylene terephthalate obtained by extrusion, chopped glass for friction products 0.4-0.7 in the middle layer of rovings, 0.3-0.8 for chopped glass MAC-4 2.85 Gamma-aminopropyltriethoxysilane 0.35 Acetic acid, concentrated 0.155 Distilled water The rest is up to 100 6 DCU-TST-23 5,0 Rowings for glass-filled polyamide 6, polypropylene, polybutylene terephthalate obtained by the method
extrusion, chopped glass for friction products 0.4-0.7 in the middle layer of rovings, 0.3-0.8 for chopped glass MAC-4 5,0 Gamma-aminopropyltriethoxysilane 0.6 Acetic acid, concentrated 0.3 Distilled water The rest is up to 100 7 DCU-TST-23 5,0 Roving for 0.4-0.7 by MAC-4 5,0 glass-filled polyamide 6, polypropylene, polybutylene terephthalate obtained by extrusion, chopped glass for friction products the middle layer of rovings, 0.3-0.8 for chopped glass Gamma-methacryloxypropyltrimethoxysilane 0.3 Gamma-glycidoxypropyltrimethoxysilane 0.3 Acetic acid, concentrated 0.3 Distilled water The rest is up to 100

MAC-4 is a composition of industrial oil, nonionic surfactants, plasticizer and antistatic agent.

For patentable sizing, the dry residue is: 0.7-8.0%, depending on the dosage of the components, pH = 4.0-5.4, the sizing is stable for 24 hours at 15-30 ° C, with an acceptable cream of not more than 1 mm (measuring cylinder 100 ml) - the western version of evaluating the stability of lubricants, stable when centrifuged at a speed of 2500 rpm for 5 minutes - Russian version. On average, at JSC Fiberglass, Gus-Khrustalny, the breakage of the thread was 2-5 rpm.

This sizing is available for direct fiberglass sizing, which can be used for glass and basalt direct silane sizing. (fiber diameter 13-34 microns, linear density 140-4800 tex) and rosed (fiber diameter 10-17 microns, linear density 140-10800 tex) rovings for reinforcing fiberglass, chopped glass and basalt threads (9-24 microns, length 3 -24 mm) for brake pads of cars or fiberglass, low-twisted textile thread (diameter 9-10 microns, linear density 72-110 tex) type EC9-72S40 for fiberglass E3-200. All this glass and basalt fiber is used for reinforcing fiberglass. These lubricants give similar adhesion of fiberglass to polymers, as on the basis of well-known lubricants.

Sizing content on fiber - for direct sizing standards: 0.3-0.8%.

Claims (1)

A sizing agent for glass and basalt fiber, including DCS dicyandiamide formaldehyde resin, MAC-4 grease, acetic acid and water, characterized in that it additionally contains organosilanes in the following ratio of components, wt.%:
diamide formaldehyde resin DCU-TST-23 2.0-5.0 grease MAC-4 3.0-5.0 organosilanes 0.1-0.6 acetic acid 0.2-0.3 water rest