7/27/2019 Rubber Phu Gia

1/29

C PH GIA KHC1. Cht ha do.2. Cht pepti3. Ch t to x p4. Cht tr hon chy5. Cao su ti sinh v cao su bt6. Cht mu7. Ph gia khc8. Xy dng n pha ch

7/27/2019 Rubber Phu Gia

2/29

1. CHT HA DO

Cht ha do c a vo cao su ci thin

tnh cht gia cng v tnh cht sn phm. Hm lng ha do s dng trong cao su

thng b hn 10 phr, ngoi tr trng hp cc

cao su EPDM.

,lu ha s gim v c th nh hng xu n

khng lo ha ca cao su.

7/27/2019 Rubber Phu Gia

3/29

PHN LOI

Ha do c ngu n g c thc vt: nha thng, cn

du thng a o c ngu n g c an n a

coumaron.

.

Ha do tng hp.

7/27/2019 Rubber Phu Gia

4/29

Ha do c ngu n g c d u ha chia ra thnh d u

paraffinic, naptenic v aromatic. Du aromatic.

Ha do tng hp c phn cc ln hn c,

Cc ha do ny thng l cc ester, th dDOP, DBP, DOS (dioctil sebacat)

7/27/2019 Rubber Phu Gia

5/29

Vic chn la loi ha do v hm lng s dng

ph thuc: ng p c a a o v cao su.

Kh nng duy tr ha do khi tng hoc gim

Kh nng di tr khi cao su.

7/27/2019 Rubber Phu Gia

6/29

2. CHT PEPTI

Thng dng lm mm cc cao su nh NR,

SBR, CR. Gi vai tr cht xc tc gim cp khi cn trn

nng, ng thi gi vai tr cht bt gc t do

nn v n tc ng cn ngu oc trongtrng hp khng c oxy.

m ng s ng . n . p r s mgim ng k thi gian cn trn.

7/27/2019 Rubber Phu Gia

7/29

Tri vi ch t ha do, ch t pepti khng nh

hng nhiu n tnh cht cao su lu ha. ep c c o v o r c n v c

do thi mi cho cc ph gia khc vo.

7/27/2019 Rubber Phu Gia

8/29

Cc ch t pepti thng s dng l 2-mercapto

benzimidazol, mui km 2- benzimido tiophenat,

tiophenol.

cht pepti

7/27/2019 Rubber Phu Gia

9/29

3. CHT TO XP

L ch t b phn hy to kh khi nhit tng, to

xp cho sn phm cao su. p s c c n c u r c cao su o qu

trnh lu ha.

7/27/2019 Rubber Phu Gia

10/29

CU TRC XP

Xp kn

Xp h

7/27/2019 Rubber Phu Gia

11/29

Kh i lng ring v c u trc x p ph thuc:

nht Mooney ca hn hp. Bn ch t v hm lng ch t to n i.

iu kin lu ha.

H s lm y (xp h). p sut p v tc mkhun (xp kn).

7/27/2019 Rubber Phu Gia

12/29

CC CHT TRNG PHNG

Natrium hoc ammonium carbonat gii phng

kh CO2. c c g p ng 2

Dinitroso pentametilen tetramin Td = 1200C

Sulfo hidracid: Td = 850C

7/27/2019 Rubber Phu Gia

13/29

4. CHT TR HON CHY

Ngn chn qu trnh chy:

To sn phm ngn cch vt liu vi khng kh. Ngn chn qu trnh tiu th oxi

Yu cu:

Khng to ra kh c.

7/27/2019 Rubber Phu Gia

14/29

Mt s cao su c tnh t t t nh CR, cc cao su

clo ha, fluo ha. s a o es er p osp a e, a um n um

hydrat qu trnh phn hy thu nhit nn l gim.

7/27/2019 Rubber Phu Gia

15/29

PHN LOI

Ch t ch ng chy do phn hy to kh khng

chy: km carbonat, ma nh carbonat. o p c c m ora

Cht khc nh Sb2O3, du paraffin clo hoa hm.

7/27/2019 Rubber Phu Gia

16/29

5. CAO SU TI SINH CAO SU BT

Cao su ti sinh tng do ca h n hp gimth

i gian phn b

n trong cao su.

ng c n. m rng p ng.

To ngoi quan tt.

ng

t n ng n u

C li kinh t.

7/27/2019 Rubber Phu Gia

17/29

Khi xy dng n pha ch cao su c s dngcao su ti sinh c

n ch :

ng n c s n rong cao su s n .

Lng lu hunh v xc tin cn st li trongcao su s n .

7/27/2019 Rubber Phu Gia

18/29

BT CAO SU

cao su ph liu.

thng th cao su bt c cho trng phngtrong ha do trc khi cn trn v hn hp

cao su.Bt cao su:

Gim co rt

. Gim c tnh ca cao su lu ha: khng ko,

7/27/2019 Rubber Phu Gia

19/29

6. CHT MU

Ch t mu v c: r tin, cho mu km cc

oxid Fe, Zn ...). m u u c m c n, c gam m u r ng,

cho mu mnh.

cht n trng (silica). Titan dioxid c sd n l cht t o n n i mu sc c tinhkhit cao hn.

7/27/2019 Rubber Phu Gia

20/29

7. CC CHT KHC

Ch t ch ng dnh: km stearat, ester acid bo,xap paraffin, du vaselin, PE thp phn t

ng n n a coumaron- n en, n aphenolic, colophan ...

nn vt liu khc nh vt liu si - nharesorcinol formaldehid; v t li u kim lo i ccloi keo dn tng hp.

7/27/2019 Rubber Phu Gia

21/29

8. XY DNG N PHA CH

Cao su

Cht ha do

H lu ha

7/27/2019 Rubber Phu Gia

22/29

NGUYN TC XY DNG XY DNG N

Tnh cht s dng

Gi thnh

7/27/2019 Rubber Phu Gia

23/29

Vic xy dng n pha ch cao su l mt ngh

thut v kinh nghim. i khi phi dung ha cc tnh cht. Th d

nhit sinh ni v ma st ln trong v xe.

Kh khn l ngy nay c nhiu loi cao su vnhu loi ph gia.

May m n l c nhiu thng tin v n phach lm cng vic xy dng n pha ch

.

7/27/2019 Rubber Phu Gia

24/29

MT V XE DU LCH

SBR 1712 65

Stearic acid 1

Du aromatic 25

TMQ 1.4

CBS 1.5

7/27/2019 Rubber Phu Gia

25/29

MT V XE TI NNG NR 70

SBR 10

BR 20 ZnO 3

Stearic acid 3

N 0 ISAF 50

Du aromactic 3

TMQ 2

S 1.5

7/27/2019 Rubber Phu Gia

26/29

RUT XE IIR 100 n

Stearic acid 1

N660 (GPF) 40

u para n c

DPAA 1

S 2.5

TMTD 0.9

MBTS 0.3

TeDEC 0.3

7/27/2019 Rubber Phu Gia

27/29

CAO SU CHU DU

NBR 36% Nitril 50

NBR 30% Nitril 50 ZnO 5

Stearic acid 1.5

N550 (FEF) 60 Octil adipat 12

S 1.2

MBTS 1.5 TMTM 0.4

7/27/2019 Rubber Phu Gia

28/29

DOTG di-o-tolydil guanidin

MBT Mercapto benzo thiazol

TMTM Tetrametil thiuram monosulfua

CBSN-ciclohexil-2-benzothiazil

TBBS N-tertbutil-2- benzothiazil

TeDEC Tellunium dietil dithiocarbamat

7/27/2019 Rubber Phu Gia

29/29

PHNG LO

- p en p en en am n

IPPD N-isopropil phenilen diamin

r ng ngng p en am n vaceton

r me - , , - ro- ,

quinolein