Feem ntau cov hom additives sib txawv raug ntxiv thaum lub sijhawm ua cov yas kom tau raws li cov kev cai sib txawv thiab daim ntawv thov ntawm cov ntaub ntawv, thiab kev xaiv cov additives yog qhov tseem ceeb hauv kev tsim cov qauv hloov kho yas.

I. Lub ntsiab lus ntawmcov khoom siv yas ntxiv

Cov khoom siv ntxiv rau cov yas, tseem hu ua cov khoom siv pab yas, yog cov khoom sib xyaw uas yuav tsum tau ntxiv rau cov polymers (cov resins hluavtaws) thaum lub sijhawm molding thiab ua kom zoo dua lawv cov kev ua haujlwm lossis los them rau qhov tsis txaus ntawm cov resin tus kheej.

1. Cov tshuaj yas ntxiv tau los txo qhov kub ntawm cov tshuaj polyvinyl chloride thiab ua rau cov khoom mos dua;

2. Cov neeg ua npuas dej tuaj yeem ntxiv rau los npaj cov yas ua npuas dej uas tsis hnyav, tiv taus kev co, rwb thaiv cua sov, thiab rwb thaiv suab;

3. Qee cov yas muaj qhov kub ntawm kev lwj uas ze rau lawv qhov kub molding thiab kev ua tiav, thiab tsis tuaj yeem pwm tau yam tsis muaj kev ntxiv cov tshuaj stabilizer kub.

Yog li ntawd, cov khoom siv yas ntxiv rau hauv txoj haujlwm tseem ceeb hauv kev txhaj tshuaj yas thiab kev ua khoom.

II Cov Kev Cai Tseem Ceeb thiab Cov Kev Ceeb Toom rau Kev Xaiv Cov Khoom Ntxiv

1. Cov khoom ntxiv yuav tsum muaj kev sib raug zoo nrog cov yas kom lawv tuaj yeem nyob ruaj khov thiab sib npaug hauv cov khoom ntev thiab ua haujlwm tau zoo. Yog tias qhov sib xws tsis zoo, cov khoom ntxiv yuav yooj yim los nag.

2. Cov tshuaj ntxiv yuav tsum ruaj khov. Xaiv cov tshuaj ntxiv uas tsis yooj yim tawm ntawm cov yas.

3. Cov tshuaj ntxiv yuav tsum tau hloov kho kom haum rau cov xwm txheej ua haujlwm. Lawv yuav tsum tsis txhob yooj yim lwj lossis vaporize ntawm qhov kub ua haujlwm.

4. Cov tshuaj ntxiv yuav tsum tsis txhob ua rau cov khoom puas tsuaj lossis lom thiab yuav tsum ua tau raws li cov qauv kev tu cev.

IIICov Txheej Txheem Xaiv Rau Cov Khoom Siv Yas Ntxiv

1. Xaiv cov adjuvants raws li lawv lub hom phiaj

Txhim kho kev ua haujlwm zoo duaCov tshuaj nplaum, cov tshuaj tso tawm, cov tshuaj stabilizer, cov tshuaj pab ua cov khoom siv, cov tshuaj thixotropic, cov tshuaj plasticizers, cov tshuaj PVC stabilizers.

Txhim kho cov khoom siv kho tshuabcov khoom siv: cov khoom siv yas, cov khoom siv txhawb zog, cov neeg sawv cev tawv, thiab cov khoom hloov kho kev cuam tshuam.

Txhim kho cov khoom siv kho qhov muagCov xim: cov xim pleev, cov xim zas, cov neeg sawv cev nucleating, thiab cov neeg sawv cev ua kom dawb fluorescent.

Kev ua tau zoo dua qub: cov tshuaj antioxidants, Cov khoom siv PVC stabilizer, Cov tshuaj nqus UV, cov tshuaj tua kab mob, thiab cov tshuaj tiv thaiv pwm.

Txhim kho cov khoom ntawm qhov chawCov tshuaj: cov tshuaj antistatic, cov tshuaj roj nplua nyeem, cov tshuaj tiv thaiv kev sib txhuam, cov tshuaj tiv thaiv kev thaiv, cov tshuaj tiv thaiv kev pos huab.

Txo nqi: diluents, fillers.

Txhim kho lwm yam khoom: tus neeg sawv cev ua npuas ncauj, kev pab hlawv, tus neeg sawv cev sib txuas tshuaj, tus neeg sawv cev sib txuas, thiab lwm yam.

2. Cov tshuaj ntxiv yog xaiv rau cov resin.

Cov tshuaj tua hluav taws xob liab phosphorus zoo rau PA, PBT, thiab PET; cov tshuaj tua hluav taws xob nitrogen zoo rau cov yas uas muaj oxygen, xws li PA, PBT, thiab PET; kev hloov kho iav fiber uas tiv taus cua sov zoo rau cov yas crystalline tab sis tsis zoo rau cov yas amorphous; cov roj carbon dub zoo rau cov resins crystalline; cov neeg sawv cev nucleating zoo rau copolymer polypropylene.

3. Kev sib raug zoo ntawm cov khoom ntxiv thiab cov tshuaj resin

Cov tshuaj ntxiv thiab cov resins yuav tsum muaj kev sib haum xeeb zoo kom ntseeg tau tias lawv tau tawg raws li cov qauv npaj tseg, yog li lav qhov ua tiav ntawm cov qauv tsim thiab xyuas kom meej tias lawv cov teebmeem tau txuas ntxiv mus thoob plaws lawv lub neej kev pabcuam, nrog rau kev tiv thaiv kev rho tawm, kev tsiv teb tsaws chaw, thiab nag lossis daus.

Sib nrug ntawm ob peb yam khoom ntxiv xws li surfactants, kev sib raug zoo nrog cov resin yog qhov tseem ceeb rau kev ua kom lawv cov txiaj ntsig zoo tshaj plaws thiab nce lawv cov koob tshuaj.

Yog li ntawd, nws yog ib qho tsim nyog los nrhiav txoj hauv kev los txhim kho lossis txhim kho nws qhov kev sib raug zoo, xws li siv cov khoom sib xws lossis cov neeg sawv cev sib txuas rau kev kho qhov chaw ua kom zoo.

4. Xaiv cov duab ntawm cov khoom ntxiv

Cov khoom siv fibrous muaj cov txiaj ntsig zoo rau kev txhawb nqa. Qib ntawm kev ua kom muaj fiber ntau ntawm cov khoom siv no tuaj yeem qhia los ntawm qhov sib piv ntawm cov khoom siv. Qhov sib piv ntawm cov khoom siv loj dua, qhov zoo dua qhov cuam tshuam ntawm kev txhawb nqa. Qhov no yog vim li cas peb ntxiv cov iav fiber los ntawm cov qhov cua.

Lub xeev yaj zoo dua rau kev tswj hwm qhov sib piv thiab txo qhov muaj feem ntawm kev tawg ntawm cov fiber ntau dua li hmoov. Cov khoom ntxiv spherical muaj cov nyhuv tawv dua thiab ci dua.

Barium sulfate yog ib qho khoom siv ntxiv rau lub pob zeb, yog li nws yog siv los ua cov khoom ntim rau cov PP ci ntsa iab, thiab kuj tseem siv tau rau kev tawv thiab tawv me me.

5. Tus nqi ntawm cov khoom ntxiv

Cov khoom ntxiv uas tsim nyog tsis yog tsuas yog txhim kho cov resin kom zoo xwb, tab sis kuj tseem ua rau cov nqi qis raws li cov ntsiab cai kev lag luam.

Cov khoom ntxiv sib txawv xav tau cov kev cai sib txawv ntawm cov tshuaj:

1)Cov tshuaj tiv thaiv hluav taws, cov neeg sawv cev ua kom tawv, cov hmoov sib nqus, cov neeg sawv cev thaiv, thiab lwm yam, txawm hais tias lawv ntxiv ntau npaum li cas, qhov zoo dua los ntawm kev ua tau zoo, tab sis tus nqi kuj yuav tsum tau txiav txim siab;

2) Cov khoom siv hluav taws xob conductive, feem ntau tsuas yog xav tau los tsim txoj kev sib txuas lus xwb;

3) Tus neeg sawv cev tiv thaiv hluav taws xob, tsuas yog tsim ib txheej txheej uas them nyiaj rau ntawm qhov chaw;

4) Tus neeg sawv cev txuas, uas siv tau los ua ib txheej txheej saum npoo.