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SU379589A1 - METHOD OF OBTAINING FURAI RESIN - Google Patents

METHOD OF OBTAINING FURAI RESIN

Info

Publication number
SU379589A1
SU379589A1 SU1677262A SU1677262A SU379589A1 SU 379589 A1 SU379589 A1 SU 379589A1 SU 1677262 A SU1677262 A SU 1677262A SU 1677262 A SU1677262 A SU 1677262A SU 379589 A1 SU379589 A1 SU 379589A1
Authority
SU
USSR - Soviet Union
Prior art keywords
resin
furai
obtaining
hours
condensation
Prior art date
Application number
SU1677262A
Other languages
Russian (ru)
Inventor
И. В. Каменский витель И. М. ташова
Original Assignee
Московский ордена Ленина химико технологический институт И. Менделеева
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Московский ордена Ленина химико технологический институт И. Менделеева filed Critical Московский ордена Ленина химико технологический институт И. Менделеева
Priority to SU1677262A priority Critical patent/SU379589A1/en
Application granted granted Critical
Publication of SU379589A1 publication Critical patent/SU379589A1/en

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  • Compositions Of Macromolecular Compounds (AREA)
  • Phenolic Resins Or Amino Resins (AREA)

Description

Изобретопле относитс  к иолучелнпо термостойКих фураловых поллмеров. Известеи способ получени  фураиовой смолы конденсацией фурилакролеиа-га с мочевино при 50-d80°C с посто нным отгоном летучих. Целью изобретени   вл етс  повышение теплостой.кости, прочности и твердости смолы. Эта цель достигаетс  тел1, что фурилакролеиш кондеисирлют с резорцином в соотиои1еиии 0,75-1:1. Конденса1цию провод т при 150-180°С, с поСтойиным отгоном летучих в течение 2-3 час. Смолу отверждают нагревании до 200-240 С в присутствии 1-6% бензолсульфокислоты (БСК). Пример. В трехгорлую кол|бу, онабжениую механической мешалкой, обратным холодильником с ловушкой и термометрОМ, з апружают 0,75 моль фурила:к|ролеи1на и 1 моль резорцнн .а. пбремеш.ивавии и отгоне летучих соде ржимое кол1бы выдерживают при 150-155°С. 3 час до образовани  плавкого (Продукта (проба ири нормальной .ратуре ). Отверждение олигомера провод т по следуюшему темлератур ому релс1И1му с добавлением 5% БСК: лр:и 200° 6 час, при 240°С 3 час. СМОЛА- можно 1гспользовать в качестве св VK )Hiero при И;ролзводстое матерн.алов, иаириер , на основе графита, которые должны работать в зслоБн х высоких температур и переменных нагрузок или в т жело иагру сенных тормозных колодках. Физико-механические показатели полимера с графитовым налолнителем: Удельный вес, г/см 1,76-1,82 Предел opo4iHOCTH при сжатии , кг/см 1230-4370 Предел Прочностн ири ста450-600 тнческо:м иЗПгбе, кг/см Удельна  ударна  в з.кость, 6,7-8,54 кг см/см 480-490 Теплостойкость, °С Удельное электр.лческое сопро230-240 . тивлемие, ом Пред м е т и з о б ip е т е at и   Способ получени  фурановой смолы коиденсацней фу рилакролеина с другиМ соединением при 150-180°С с посто нным отгоном летучих , отличающийс  тем, что, с целью повышени  теплостойкости, дрочности и твердости смолы в отвержденном состо нии, фурилаздролеил коиденсируют с резорцином в соотношении 0,75-1:1.Inventive refers to the best heat resistant fuels. Limes are a method for producing furaic resin by condensation of furyl acrolea-g with urea at 50-d80 ° C with constant volatile distillation. The aim of the invention is to increase the heat resistance, strength and hardness of the resin. This goal is achieved by tel1 that furilacroleish kondeisirlute with resorcinol in accordance with 0.75-1: 1. Condensation is carried out at 150-180 ° C, with distillation of volatiles for 2-3 hours. The resin is cured by heating to 200-240 ° C in the presence of 1-6% benzenesulfonic acid (BSC). Example. In a three-necked flask, equipped with a mechanical stirrer, a reflux condenser with a trap and a thermometer, 0.75 mol of fur were charged: rollers and 1 mol of resorption. The concentrations of combustible and distilled volatile substances are maintained at 150-155 ° C. 3 hours before the formation of a fusible (Product (sample and normal). The oligomer is cured according to the following temperature ratio with the addition of 5% BSK: lr: and 200 ° 6 hours, at 240 ° C for 3 hours. as a VC) Hiero at I; roll-on material, ionieri, on the basis of graphite, which should work in high temperatures and variable loads, or in heat transfer brake shoes. Physico-mechanical properties of a polymer with a graphite filler: Specific weight, g / cm 1.76-1.82 The opo4iHOCTH limit under compression, kg / cm 1230-4370 Strength Limit 450–600 tons: m izPgbe, kg / cm Specific shock in z.kost, 6.7-8.54 kg cm / cm 480-490 Heat resistance, ° C Specific electrical resistivity 230-240. impurity, ohm predmet and sb ip etu at and Method of producing furan resin by co-condensation furiacrolein with other compound at 150-180 ° C with constant distillation of volatiles, characterized in that with the aim of increasing heat resistance, fatigue strength and the hardness of the resin in the cured state, furyldromerol co-sensitize with resorcinol in a ratio of 0.75-1: 1.

SU1677262A 1971-06-30 1971-06-30 METHOD OF OBTAINING FURAI RESIN SU379589A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1677262A SU379589A1 (en) 1971-06-30 1971-06-30 METHOD OF OBTAINING FURAI RESIN

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1677262A SU379589A1 (en) 1971-06-30 1971-06-30 METHOD OF OBTAINING FURAI RESIN

Publications (1)

Publication Number Publication Date
SU379589A1 true SU379589A1 (en) 1973-04-20

Family

ID=20481584

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1677262A SU379589A1 (en) 1971-06-30 1971-06-30 METHOD OF OBTAINING FURAI RESIN

Country Status (1)

Country Link
SU (1) SU379589A1 (en)

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