Outline

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Outline

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Part 1 ??
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  ????????????????????????TGA?DSC??????????????
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Part 2 ????

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• ???(St),???2-????(2-EHA),?????(BA),???????(MMA),??
  ???(MAA),???(AA),????(APS),n-??(n-PTL),???(NaAc),?
  ??????(???),?? ?

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?. ?????????????(?????????) Table. The
emulsifiers used for Styrene-acrylic emulsion and
their structure
?????
??????
?????
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• ????????????????????????
• IKA(RW 20.n)?????????????DZF-6020?????????????NDJ-
  4???????????????????????
• MALVERN HYDRO MasterSizer2000???????NetzschTG-209
  ??????Nicolet/Nexus 670 ????????Waters Breeze
  ??????TAMDSC2910 ???????????Hounsfield THE 10K-S
  ???????

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• ???????? (conventional copolymerization)
• ?????????(two stages polymerization)

???
???A
? ?
???B
? ?
??
? PH
???????????NaAc
????
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• ????TGA???
• ???DSC??
• ?????????
• ???????? GPC
• ??60??????
• ??????????

NDJ-4??????
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Part 3 ?????

• 3.1 ??????

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3.2???????????????

• ????????????????

?.3-1??????????????????
Table .3-1 Influence of ways of polymerization on
Styrene-acrylic emulsion
???? ???/ ??/mPa?s ?????/ ?????Mn ??/nm Tg/K
????? 43.8 640 99.0 84854 178 292
???? 43.2 800 98.5 101394 109 ?/328 ?/274
.??????Fox?????Tg?283K???
16
?????DSC??
?3-4.?????????????DSC?? (a.?????b.????) Fig.3-4
DSC curves of Styrene-acrylic polymer by
copolymerization and polymerization with
core/cell (a.conventional copolomerizationb.
polomerization with core/cell)
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??????????????????
Table.3-3 TGA dates of Styrene-acrylic polymer
???? T0/K Tmax/ K Tter/ K T5 /K
????? 386.9 407.4 423.3 390.1
???? 381.1 414.3 429.2 388.5
?????????,??????????,???????,
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3.3??????????????
?.3-4 ????????????? Table.3-4 Influence of
emulsifiers on Styrene-acrylic polymerization
??? ????? ????? ???/ 60?????/? ??/mPa?s ?????/ ??? ?????
1 MS-1 1 43.3 73.5 800 97.9 ? ?
2 DNS-1035 1 43.4 71.5 35 98.5 ?? ?
3 HPMAS 1 43.1 58.0 75 97.7 ?? ?
4 HAPS 1 43.4 62.5 150 98.5 ?? ?
5 SVS 1 43.3 53.0 600 97.9 ?? ?
6 DNS86 1 43.4 62.0 1160 98.5 ?? ?
7 JS-2 1 43.5 69.5 435 98.1 ? ?
9 Em-11 1 43.3 57.5 1120 97.9 ? ?
9 K-12NP-40 21 43.7 62.5 640 99.1 ? ?
10 DNS86NP-40 31 43.6 63.5 1450 99.0 ? ?
11 DNS86K-12 31 43.8 71.5 1200 99.3 ? ?
12 DNS-1035K-12 31 43.7 68.5 120 99.1 ? ?
13 DNS-1035OP-10 31 43.3 62.5 85 97.9 ?? ?
.??????????2.5 ??????????????????????
?????????????????????????????????????
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????????????????
?.3-5????????????????? Fig.3-5 Influence of
reactive emulsifiers on emulsion particle size
?3-6.DNS86?NP-40?????????????? Fig.3-6 Influence
of DNS-86 NP-40 emulsifiers on emulsion
particle size
????????????????????????????????????????,??
???????????????????????????????????,????????,?????
?(100nm??),????????????
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?????????????????(?em-11??)
?.3-7??????????????? Fig.3-7 The water
absorbability of conventional emulsion and
emulsifier-minor emulsion
?.3-8???????????????? Fig.3-8 Influence of
content of reactive emulsifiers on polymer water
absorbability
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?????????????????
?3-6.????????????????? Table.3-6 The soap datas
of conventional emulsifiers and reactive
emulsifiers
??? ????? ????/cm
1 DNS86 3.7
2 HPAS 3.8
3 HPMAS 5.2
4 DNS-1035 6.1
5 MS-1 6.7
6 K-12NP-40 6.5
7 K12OP-10 7.5
8 Em-11 0.1PTL 4.2
9 Em-11 0.5PTL 3.4
10 Em-11 1.0PTL 3.5
???,??????
???,??????
???,?????
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???????????????????
?.3-7 ??????????????????? Table.3-7 Machanical
properties datas of Styrene-acrylic polymer by
different emulsion system
Samples Emulsifiers Tens. Str./MPa Elong.at break/
Johncryl sample 0.4588 1432
1 DNS86OP-10 2.114 828
2 Em-11NP-40 2.341 1021
3 K-12NP-40 1.846 532.8
4 HPMAS 2.587 725
5 MS-1 8.460 528
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3.4 ? ?

• ????????,????????????????,??????????????,?????A?B?
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• ?????????????????????500nm??,?????????????????????
  ???????????????????????,???????100nm??????????????
  ,???????

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