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配方师面试技术考核3 x: d2 P' w$ R( d, z
Chemist Interview Evaluation Test
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姓名Name: 出生年月 Birth Date: 6 N% f) X ~5 ^9 |7 p+ ~$ ^
( S+ V0 T$ C8 P# ~' q
现任职位 Position: 联系电话 Phone No.: 5 G1 E( H e s& Q+ o& J0 m
( G, ~+ E& ?% I6 R; w日期Date:
% \$ N3 D! F& L8 d2 x# d- I V
& Z2 B; ]! ] n备注Note;5 J- D7 R5 ^: n, j
1-如果需要,可加附页You may attach additional sheet as necessary2 \/ z- }" |* h) }* T
2-如果需要,可做必要的假设 Please make necessary assumptions to answer the questions. + [5 a: Y0 z ^5 s! T2 P
请根据提供的资料,设计一个满足要求的配方Please develop a compound recipe that will meet all the following physical property requirements.
) Y. D3 x/ H4 a, s* a1 F5 i5 i: `ASTM Specification SAE J200 M4AA717A13B13C12F17 3 Y8 k' s) q) G& E! {
Additional Information Natural rubber - O8 x N/ G6 v3 O) n
Test Item Test method Unit Specification
5 ]" e8 T" Y& ]$ {/ sHardness ,Shore A ASTM D2240 70±5 8 y& ^0 ?, z6 z: Q4 f, W( B
Tensile ASTM D412 MPa ≥17
0 _; Z! ] a; D, w/ K* YElongation ASTM D412 % ≥300
* F( [" s; b) _0 g2 V8 {; V) q7 gTear Strength,Die C ASTM D624, KN/m / ( \: D- l, o0 [9 T- O) Z
Heat resistance,70 h at 70℃ ASTM D573
& Q* [& a" V7 f# ^0 m7 L/ PChange in hardness, MAX points +10 , L3 U5 h4 u* g' Y5 e& _" i5 e& _
Change in tensile strength, MAX % -25 9 F$ Y7 o7 u# j* c, s* w
Change in ulimate elongation, MAX % -25
! B( ?- c% k9 d. w: D$ xCompression Set(70℃x22h) ASTM D395 Method B % ≤25
$ V/ N: @: h. D% L/ gResistance to Ozone ASTM D1171 : ]3 l, p* l4 A- @( M. }( e- i
Quality Retention Rating, min, Method B % 85 o* n& e) O) b0 V4 E: b
Low -temperature resistance, ASTM D2137, : Z! Z- e, a9 p$ r+ ?
Nonbrittle after 3 min at -40℃ Method A pass 8 \" X" o& @; R d) n+ R3 ^% p/ F
" `: Z2 V" H' S1 n5 [
i- E# c& X! T' A
, ^' X! h" U- ]+ r+ D+ }
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Recipe配方:
% U. ]* `$ [2 R/ }Item No. Ingredient PHR
4 S# q, D" S- }) b8 i6 `; j( i" { . I8 `7 P) W2 F0 V6 i/ E" _9 A; U4 [
1 D" e3 U$ w: D0 h( z& n
- |; |0 @; I3 P4 {% H3 X, U0 Z
j6 w& }* \2 W% P% p/ r
' R" X1 z( G7 S& ~1 q 6 b( d: E3 L& N3 Q0 x3 |9 X6 r
9 r9 _8 {! Z0 [8 R9 Q! V2 L) A % [2 N9 x( `. n$ Z: F# a- _- z
5 {7 E8 m) R3 R$ c9 Z9 ]' j 6 \8 L; r& G& V2 U( `* P" ]2 U& Q
4 Y- a. g3 A o. S: {8 h2 y
0 M) r1 ~ A d9 z& h
1 p5 H1 o( O7 p7 u/ B' X
& B* `, M5 {3 j7 {# j& X
Please develop a recipe based on the following application requirement.请根据以下顾客要求,设计一个合理的配方。
/ \+ a4 E( I2 i. E# k顾客要求:抗静电,丁苯胶,黑色,60度(Low Static, SBR, Black, 60 shore A)- A6 x( i0 B+ _
配方Recipe:
3 w0 z8 X0 j/ Q3 @9 RItem No. Ingredient PHR % z* K$ Y$ H( Y, ?" m
8 Y8 V" y+ ]1 G Z# i; v
% ^+ U. ~4 W6 o' R" H
1 I& _* a& _. l1 d T( d s! ]" X! r+ y1 a1 O4 |9 w
?) v3 Z8 I% S2 V% R( C 2 s; V" o, o1 v8 M. ]" I
2 `: V! C4 X) `( S/ h
* @3 ?( q! U$ S+ u& m
% O" I/ s$ @/ D* ]0 \ 9 d! g/ k0 W8 L8 M
" `- Q3 ?) ^! T3 U$ e
) j) T& b. b3 t2 `7 c4 u/ {0 q2 j, F' m* B1 _6 d5 f
我们有一个NBR配方和顾客要求如下,请判断该配方是否能够满足顾客要求,如果不能,请修改配方Please tell if the following recipe can meet the customer’s requirements,if not, please modify the recipe to meet the specification requirements.2 a( n' ]7 I9 C
3 W/ g( z P0 s
原始配方Original Recipe 改进配方Improved Recipe
A0 m$ R! s6 ]3 l6 h9 z* JItem No. Ingredients PHR (180.3) Ingredients PHR ; |! D' t: ?, f' I5 |
1 230S NBR 100 $ Q7 M5 G, q$ J
2 4010NA 1
# [5 b: ]9 a4 m5 q. L$ [7 |* ?7 I3 RD 1 + \! @9 c" O" D2 l8 A& g
4 Zinc Oxide 5
8 U5 @! k" N9 A1 `0 P$ x- ? T5 Stearic Acid 1
7 ]% s2 e" q- P: x6 Paraffin Wax 1
6 ~# B$ F7 q5 V( T7 N330 23
( U, V! n9 P5 P* |$ ]1 S8 N770 40 7 V/ Z$ f" f: A" U1 p& n7 x) F
9 DOP 5
# S0 f9 d- u/ [. N10 TMTM 0.3 - y* ?) [) \: ~" T
11 CBS 1.5
: y+ I; C2 ^" z( V5 y12 Sulfur 1.5
" ?4 Y8 S& q1 e/ g7 z, B2 e) o [# | { b0 S
9 k( Z9 A# h; e* r$ V
2 i, }; t# U9 l, [' P, }
0 V G; _! H; F0 o! U; V* A
# J) j8 T- ~% D& C, c( ]$ H! @# R h. G顾客的要求如下Customer’s requirements is as follows:
$ a8 v$ r7 M, V+ T( J0 z, }7 _3 z6 lTest Item Test method Unit Specification 2 M' t. P& B- Z* P( T4 F7 v) S
Hardness ,Shore A ASTM D2240 70±5 t/ @. m( U5 @
Tensile Strength, ASTM D412 MPa ≥14 / u3 X0 b/ f- e- `3 c& s# j3 N2 K
Elongation ASTM D412 % ≥250
- x% ?% R) V) s9 D) [Tear Strength,Die C ASTM D624, KN/m /
H m. W5 z: e5 b" e- QHeat resistance,70 h at 125℃ ASTM D865
: p# Z; F; W& a% J r' `Change in hardness, MAX points 0~+15 + N* U' p% [0 Z& c+ @( M% S
Change in tensile strength, MAX % -25 8 ]' @5 a$ N8 X
Change in elongation, MAX % -50
& k! R& b. T# O; oCompression Set(150℃x22h) ,ASTM D395 Method B % ≤30
3 |- F, J. `: u+ F5 c. NFluid resistance,No.IRM903 Oil,150℃,70 HOURS ASTM D471 % R+ `7 z( w7 I ]+ C; Q
Change in hardness, ASTM D2240 Point -10
7 e6 d6 g0 Z- c4 n1 D2 vChange in tensile strength, MAX ASTM D412 % -35
) a1 T6 _4 ?6 c; N: S( f. j, nChange in elongation, MAX ASTM D412 % -35
) H6 `: T; S; e* M+ F- I$ h% C: MVolume change ASTM D471 % -0~25 ( {* ?7 J/ z2 l4 h8 ^
Low temperature TR-10Max ASTM D1329-02 ℃ -20
, _, }' V9 X9 @% DLow temperature -35℃@5hrs.180。 No cracks
2 _9 E0 b: v6 B7 c& v( p下面是一个EPDM配方,在硫化后出模时,制品容易撕裂且不易脱模,如何改进?The parts is easy to tear and difficult to be removed after molding, please solve the problems by modifying the recipe provided.1 ]% {0 g; Q3 T; X3 I, l3 E
- F8 \1 S, K$ u- g) H
原始配方Original Recipe 改进配方Improved Recipe 3 ]* _4 s0 N& j: S* k. Z- ]
Item No. Ingredients PHR (238) / Q& i7 y+ x" B7 v1 G8 a; K
1 EPDM4045 100 1
/ U( M. c3 q7 r0 A E2 c2 RD 2 2 ' ^! s% T& c6 D) r
3 Zinc Oxide 5 3
' P$ T; Z: b% { z4 Stearic Acid 0.5 4 ; E. b( J5 [- V$ M0 S
5 N770 80 5
3 V$ \/ l" Q6 b) V, p+ J I6 2280 5 6 , A' G+ S$ w* l5 Z, c
7 TAIC 1.5 7
0 Z ~! B# h; X @" k8 DCP 6 8 3 W5 h* @$ Z- k9 l& {9 p
9 9 7 ^% ]& ~2 W+ {4 ~* q$ m1 G- V m
10 + t9 \% y- y5 T4 c- C
11
. ]' ?% _) M w 12 , k- r9 n- I+ U' D( Y( n' H
13
# T9 q3 I3 h" V 14
! `8 k5 Z2 Z Y3 U1 C4 j# l' v; u) d# k
5.为了保证配方价格合理而且满足物性,重复性和工艺要求,请列出合理的配方开发步骤.Please list the compound development procedure to ensure the compound cost is reasonable and the compound meet all physical properties, repeatability and processing requirements.
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" \3 i: o7 E5 F3 b0 B9 Q/ u! y- |9 R3 Q" R2 x2 p0 j: ?
配方师面试技术考核
3 D$ k7 ?! \7 @7 i- fChemist Interview Evaluation Test$ U+ }$ H. X# F& ~( {
. ^- s- g9 e- v3 P( g姓名Name: 出生年月 Birth Date:
" I' B5 s8 O* Y5 U/ S& I4 n
( I' U8 _: t. y: h现任职位 Position: 联系电话 Phone No.:
1 Z7 ~8 _% I/ i, g. ?5 `& z( R b- L5 F2 x8 z7 @. E% `
日期Date: $ W. E7 Q+ f* J* P" Q
& K' h& }% c, a/ Y- X
备注Note;
# B' }. Z$ y" N1-如果需要,可加附页You may attach additional sheet as necessary
- Z) D8 o0 D# L1 R2 @6 {' Y2 ^2-如果需要,可做必要的假设 Please make necessary assumptions to answer the questions.
; w+ C6 q6 Y+ E! K请根据提供的资料,设计一个满足要求的配方Please develop a compound recipe that will meet all the following physical property requirements.
# e) F' M4 w6 o B$ O5 UASTM Specification SAE J200 M4AA717A13B13C12F17
3 U/ c" n& z0 J8 ~# N& NAdditional Information Natural rubber
( n! g; l0 _( U) tTest Item Test method Unit Specification
* H; q- c+ j J6 G2 yHardness ,Shore A ASTM D2240 70±5 & ]0 a8 g- Q7 r; J$ H1 v
Tensile ASTM D412 MPa ≥17
( k+ _" f* w/ f% j# I- AElongation ASTM D412 % ≥300 5 S: L9 z6 y$ \; \6 w, T) S+ i& ^
Tear Strength,Die C ASTM D624, KN/m / & C2 [- a$ q$ O8 f/ e
Heat resistance,70 h at 70℃ ASTM D573
- s9 g9 h2 @3 C! T; pChange in hardness, MAX points +10 " d" c1 k) H* w3 c+ H2 q
Change in tensile strength, MAX % -25
6 B! ~- Y0 G9 Y. j) fChange in ulimate elongation, MAX % -25
' y$ B: a, G4 a0 j1 S1 TCompression Set(70℃x22h) ASTM D395 Method B % ≤25 % `7 n% a! j% T! d
Resistance to Ozone ASTM D1171 3 ^$ C9 s# U0 I( T; D4 {' Q
Quality Retention Rating, min, Method B % 85
* Y: L. V9 F( k SLow -temperature resistance, ASTM D2137, # t+ n- T0 L+ V7 V; {2 t7 o& t2 n
Nonbrittle after 3 min at -40℃ Method A pass
! R8 ^( P6 e4 e5 e% W) u0 K/ x0 m
% Z4 r) L2 l( l: \) v$ U
( |+ C+ g% I+ a4 C, F8 A7 S# ^7 H1 k
0 ^/ k0 \3 ?$ O- v/ J) r
" H4 q$ N; ^# n l9 ^% D. {
& l% d H" w/ x7 K: A' w
: Y+ W. |6 R8 J5 o# U! Q! ?Recipe配方:, Z" n( A* g& g
Item No. Ingredient PHR
. ~* Y6 }, v2 S # {2 g! ?' `" n3 e0 C) G/ S
. z: A# F A2 c1 e i* W5 g* u) }
# u8 g* k# U: [- _: d b7 ^/ {
8 G5 G4 T( R4 I3 D6 D9 F
9 _! P- l% l( E( g0 p
) T( h. _3 j# H1 E- T$ h 8 _8 f4 ^1 T/ u0 v4 M
]6 _" g$ E( F5 A
, z1 C Q( r# v 4 m: J b/ j# P" ^
2 p+ x* l& z4 [5 k# x 7 a+ K& E" H% u5 a
^2 [ l' I9 B( X
Please develop a recipe based on the following application requirement.请根据以下顾客要求,设计一个合理的配方。
" C) t) h6 ~# ^顾客要求:抗静电,丁苯胶,黑色,60度(Low Static, SBR, Black, 60 shore A)
/ E7 R! V" i0 _6 h9 I2 B9 [配方Recipe:( O) m' s. L' D; g) ^7 H/ s
Item No. Ingredient PHR
, D7 W0 r7 m( s% R( l" ^ R9 K7 Q! a
0 H, v( A+ z" A9 \. ^4 a" f* z + O# l! I- x7 H6 |2 w( G1 b, p
- {" `9 y6 B& P8 L
1 z9 l1 u; g6 m1 m
/ F9 j) m, q1 ^/ S8 E
) V4 r8 Z0 G& I2 S8 M# O& w7 f
) i# e. |- U' B' i: e8 n
# d: J4 T6 a0 a) n' X* }6 ]; G# Z " U$ ~" F/ d4 N/ s
" W# }1 y8 n( U) r P2 t1 Z. J
2 u b+ |# g7 Y% F1 v
0 ~& ` O5 u, m: R! p8 e2 L
. q/ v1 t' v4 J4 }5 x我们有一个NBR配方和顾客要求如下,请判断该配方是否能够满足顾客要求,如果不能,请修改配方Please tell if the following recipe can meet the customer’s requirements,if not, please modify the recipe to meet the specification requirements.
8 D$ C% `9 o/ ]/ J9 t; y
2 j4 s1 Y2 T1 S原始配方Original Recipe 改进配方Improved Recipe
( W7 i: `2 ~/ d3 XItem No. Ingredients PHR (180.3) Ingredients PHR
2 E; T# a. d5 y V3 G1 230S NBR 100 4 r4 L2 G+ w" W+ u }
2 4010NA 1 , h- y7 ]: } ^( k6 k1 H" w- G! C4 x
3 RD 1 ' U/ R2 \- f0 y: R: N
4 Zinc Oxide 5 7 @5 L& `5 R# W! y
5 Stearic Acid 1
; ~% d* J' m, x0 ^0 a6 Paraffin Wax 1 3 U/ M* H# Q2 K0 q. o
7 N330 23 3 K& B* m0 R9 e; ]! ^; B
8 N770 40 % x6 O: p3 J, r. H
9 DOP 5
* r/ H2 h# _% ~" t# n- t& I10 TMTM 0.3
5 M6 a5 B- e# Z2 z+ O; r+ ^11 CBS 1.5
+ w& L4 }1 u: o5 ^7 y8 `! Y/ k) n12 Sulfur 1.5
9 G9 z) f) j) k" v# l6 T+ i# p
. \7 C) Y q' {3 f; `9 k% P5 b Y v1 ?& B l
2 Y; l, T) u/ P/ ?
/ d& l; T# K+ E1 Q, U3 I7 j
3 m4 d/ {& t; J. e* O" J顾客的要求如下Customer’s requirements is as follows:
( y7 h$ a, O5 s9 {- d' I; z* u( TTest Item Test method Unit Specification
$ w5 Q: c4 g' u7 b. \3 v8 eHardness ,Shore A ASTM D2240 70±5 . Z8 b7 V% e4 c8 j( D/ ]
Tensile Strength, ASTM D412 MPa ≥14
@4 |" x3 W# h1 \* D1 fElongation ASTM D412 % ≥250
2 J8 ^. n# p. d" A1 H$ j; F9 vTear Strength,Die C ASTM D624, KN/m /
" B5 G3 g" G9 ?6 D& C/ ]8 UHeat resistance,70 h at 125℃ ASTM D865
3 c* _; Q3 e9 ]; j# FChange in hardness, MAX points 0~+15 ; T! w/ }3 y3 c( }* r
Change in tensile strength, MAX % -25
4 _* o3 Q* N- n; y: r8 h7 v4 \5 qChange in elongation, MAX % -50
# n- U' c7 R" m9 @. ]Compression Set(150℃x22h) ,ASTM D395 Method B % ≤30
, V/ W0 ]" d7 ?& R8 IFluid resistance,No.IRM903 Oil,150℃,70 HOURS ASTM D471
& ]' m7 K, F% g7 H$ bChange in hardness, ASTM D2240 Point -10
# p' O- }1 W" ^# E% u! GChange in tensile strength, MAX ASTM D412 % -35
0 h* p5 T! s! I6 F hChange in elongation, MAX ASTM D412 % -35
/ E! ], N3 z, {5 O* R! f3 X3 uVolume change ASTM D471 % -0~25
@. l: M; r. k2 [& t7 e9 ILow temperature TR-10Max ASTM D1329-02 ℃ -20 5 @3 C% K7 i5 i7 a2 D7 W
Low temperature -35℃@5hrs.180。 No cracks
# O+ d' _' f0 S; k$ k/ n1 a+ H下面是一个EPDM配方,在硫化后出模时,制品容易撕裂且不易脱模,如何改进?The parts is easy to tear and difficult to be removed after molding, please solve the problems by modifying the recipe provided.- s$ x& W8 \# } e3 {
& v! L/ g9 a6 Y
原始配方Original Recipe 改进配方Improved Recipe
- l: { l3 a6 b5 F8 w' k) ]Item No. Ingredients PHR (238) 5 C/ e, {8 \1 y
1 EPDM4045 100 1
: K3 U, ^& E3 g! ~3 W2 RD 2 2
: _% z. G9 S. o6 K/ z( N7 A) v1 }, U3 Zinc Oxide 5 3
! W. P P0 P1 \; W8 r4 Stearic Acid 0.5 4
; P& s$ [, [6 Q$ U. \" Q5 N770 80 5 8 n* t, z0 I3 \ X
6 2280 5 6 9 r( Z1 j5 a, I' |: Q1 _
7 TAIC 1.5 7 % H7 E% L% | s5 J, c" G
8 DCP 6 8 , Q& u/ u# T: T/ l
9 9 . E7 }1 ]2 {( D' D, W
10 , g! a; ? ?( _
11 # n8 h. m" Z! a5 R$ d, K/ X
12 ( S; M. s7 Z& F: x
13 + L9 P T# G, X; M5 r3 g/ w ~
14 1 V4 z. h! O& }1 K' y2 u6 b; N
8 x2 b. T7 ?3 K, u
5.为了保证配方价格合理而且满足物性,重复性和工艺要求,请列出合理的配方开发步骤.Please list the compound development procedure to ensure the compound cost is reasonable and the compound meet all physical properties, repeatability and processing requirements. |
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