CN112961408A - Physically modified starch suitable for tray, fully-degradable composite material and preparation method - Google Patents
Physically modified starch suitable for tray, fully-degradable composite material and preparation method Download PDFInfo
- Publication number
- CN112961408A CN112961408A CN202110163310.5A CN202110163310A CN112961408A CN 112961408 A CN112961408 A CN 112961408A CN 202110163310 A CN202110163310 A CN 202110163310A CN 112961408 A CN112961408 A CN 112961408A
- Authority
- CN
- China
- Prior art keywords
- composite material
- percent
- high amylose
- modified starch
- starch
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 31
- 229920000881 Modified starch Polymers 0.000 title claims abstract description 30
- 235000019426 modified starch Nutrition 0.000 title claims abstract description 30
- 239000004368 Modified starch Substances 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title abstract description 11
- 229920000856 Amylose Polymers 0.000 claims abstract description 20
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000002156 mixing Methods 0.000 claims abstract description 17
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims abstract description 14
- 229920000747 poly(lactic acid) Polymers 0.000 claims abstract description 14
- 239000004626 polylactic acid Substances 0.000 claims abstract description 14
- 229920001685 Amylomaize Polymers 0.000 claims abstract description 12
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 11
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 11
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000008117 stearic acid Substances 0.000 claims abstract description 11
- LDVVTQMJQSCDMK-UHFFFAOYSA-N 1,3-dihydroxypropan-2-yl formate Chemical compound OCC(CO)OC=O LDVVTQMJQSCDMK-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000004014 plasticizer Substances 0.000 claims abstract description 8
- 239000011256 inorganic filler Substances 0.000 claims abstract description 7
- 229910003475 inorganic filler Inorganic materials 0.000 claims abstract description 7
- 239000012796 inorganic flame retardant Substances 0.000 claims abstract description 7
- 239000000314 lubricant Substances 0.000 claims abstract description 7
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 claims abstract description 6
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 6
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 6
- 239000007822 coupling agent Substances 0.000 claims abstract description 6
- 229920000728 polyester Polymers 0.000 claims abstract description 6
- 239000000600 sorbitol Substances 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 8
- -1 polyethylene Polymers 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- 239000001993 wax Substances 0.000 claims description 7
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 claims description 6
- 235000011187 glycerol Nutrition 0.000 claims description 6
- 239000004698 Polyethylene Substances 0.000 claims description 5
- 229920000573 polyethylene Polymers 0.000 claims description 5
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 4
- 239000000347 magnesium hydroxide Substances 0.000 claims description 4
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 4
- 229920000903 polyhydroxyalkanoate Polymers 0.000 claims description 4
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 claims description 3
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims description 3
- 150000004645 aluminates Chemical class 0.000 claims description 3
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 239000000454 talc Substances 0.000 claims description 3
- 229910052623 talc Inorganic materials 0.000 claims description 3
- KGRVJHAUYBGFFP-UHFFFAOYSA-N 2,2'-Methylenebis(4-methyl-6-tert-butylphenol) Chemical compound CC(C)(C)C1=CC(C)=CC(CC=2C(=C(C=C(C)C=2)C(C)(C)C)O)=C1O KGRVJHAUYBGFFP-UHFFFAOYSA-N 0.000 claims description 2
- 239000004743 Polypropylene Substances 0.000 claims description 2
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 2
- 239000008116 calcium stearate Substances 0.000 claims description 2
- 235000013539 calcium stearate Nutrition 0.000 claims description 2
- 229940057995 liquid paraffin Drugs 0.000 claims description 2
- 239000010445 mica Substances 0.000 claims description 2
- 229910052618 mica group Inorganic materials 0.000 claims description 2
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 claims description 2
- 229920001896 polybutyrate Polymers 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 238000012545 processing Methods 0.000 abstract description 11
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000003814 drug Substances 0.000 abstract description 2
- 238000007710 freezing Methods 0.000 abstract description 2
- 230000008014 freezing Effects 0.000 abstract description 2
- 238000009776 industrial production Methods 0.000 abstract description 2
- 239000002861 polymer material Substances 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 238000005057 refrigeration Methods 0.000 abstract description 2
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 abstract 1
- 239000000463 material Substances 0.000 description 30
- 229920002472 Starch Polymers 0.000 description 21
- 239000008107 starch Substances 0.000 description 21
- 235000019698 starch Nutrition 0.000 description 21
- 229920000945 Amylopectin Polymers 0.000 description 11
- 239000004800 polyvinyl chloride Substances 0.000 description 11
- 229920000915 polyvinyl chloride Polymers 0.000 description 10
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 7
- 239000003063 flame retardant Substances 0.000 description 7
- 238000007599 discharging Methods 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000006065 biodegradation reaction Methods 0.000 description 4
- 235000011132 calcium sulphate Nutrition 0.000 description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 239000003607 modifier Substances 0.000 description 4
- 229920002261 Corn starch Polymers 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 229940095672 calcium sulfate Drugs 0.000 description 3
- 239000008120 corn starch Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 229920006238 degradable plastic Polymers 0.000 description 3
- 235000014113 dietary fatty acids Nutrition 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 239000000194 fatty acid Substances 0.000 description 3
- 229930195729 fatty acid Natural products 0.000 description 3
- 150000004665 fatty acids Chemical class 0.000 description 3
- 239000005014 poly(hydroxyalkanoate) Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 229910052925 anhydrite Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000009264 composting Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 230000000593 degrading effect Effects 0.000 description 2
- 238000005886 esterification reaction Methods 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920002961 polybutylene succinate Polymers 0.000 description 2
- 239000004631 polybutylene succinate Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 235000012222 talc Nutrition 0.000 description 2
- 239000004373 Pullulan Substances 0.000 description 1
- 229920001218 Pullulan Polymers 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229940095564 anhydrous calcium sulfate Drugs 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- CDQSJQSWAWPGKG-UHFFFAOYSA-N butane-1,1-diol Chemical compound CCCC(O)O CDQSJQSWAWPGKG-UHFFFAOYSA-N 0.000 description 1
- 239000001175 calcium sulphate Substances 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 239000003623 enhancer Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000006266 etherification reaction Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 235000013373 food additive Nutrition 0.000 description 1
- 239000002778 food additive Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000006317 isomerization reaction Methods 0.000 description 1
- 239000010977 jade Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920001592 potato starch Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 235000019423 pullulan Nutrition 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229940100486 rice starch Drugs 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/05—Alcohols; Metal alcoholates
- C08K5/053—Polyhydroxylic alcohols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/10—Esters; Ether-esters
- C08K5/101—Esters; Ether-esters of monocarboxylic acids
- C08K5/103—Esters; Ether-esters of monocarboxylic acids with polyalcohols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L3/00—Compositions of starch, amylose or amylopectin or of their derivatives or degradation products
- C08L3/12—Amylose; Amylopectin; Degradation products thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/2224—Magnesium hydroxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/06—Biodegradable
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Biological Depolymerization Polymers (AREA)
Abstract
The invention discloses physically modified starch suitable for a tray, a fully degradable composite material and a preparation method, and belongs to the field of degradable high polymer materials. The physically modified starch comprises high amylose starch, glycerol, monoglyceride, stearic acid, sorbitol, and calcium sulfate; high amylose starch contains more than 50% amylose. The fully degradable composite material comprises: physically modified starch, inorganic filler, polylactic acid, degradable polyester, inorganic flame retardant, plasticizer, coupling agent, lubricant and antioxidant; the preparation method comprises the steps of preparing, mixing and extruding the physically modified starch. The product of the invention has good mechanical property; the color is not easy to turn yellow during processing; the invention is a full-degradable product and is environment-friendly. The tray prepared by the product can be used for carrying various medicament finished products for refrigeration or freezing for a long time. The preparation method has the advantages of easily available raw materials, simple method, high reaction yield and suitability for industrial production, and can be completed by two steps of mixing and extruding.
Description
Technical Field
The invention relates to the field of degradable high polymer materials, in particular to physically modified starch suitable for a tray, a fully degradable composite material and a preparation method thereof.
Background
At present, the medicinal trays used for holding injections or oral liquid in the pharmaceutical industry are mostly made of hard polyvinyl chloride (PVC). The material has low price, good mechanical property and certain flame retardance, can be prepared into tray products with various shapes, and better meets various requirements of medicinal trays. However, the thermal decomposition temperature (130 ℃) and the softening point temperature (80-85 ℃) of the PVC material are low, so the processing temperature range is narrow, meanwhile, the PVC material can generate a large amount of toxic and harmful odor in the process of processing and preparing the medicinal tray at high temperature, and in addition, the PVC material has poor biodegradability and is easy to cause serious environmental pollution, and the defects greatly limit the application range of the PVC material.
In order to overcome the existing defects of the PVC material, a common mode is to add other components into the PVC material to change the properties of the PVC material so as to meet the requirements of different fields. For example, CN200910116208.9 discloses a PVC material and a preparation method thereof; the toughness of the pipe is increased by adding light calcium carbonate; for example, CN201110194896.8 discloses a degradable plastic; an environmentally friendly partially degradable plastic article prepared by mixing pullulan and a PVC material; for example, cn201110150638.x discloses a modified polyvinyl chloride composite material and a preparation process thereof; the material characteristics are changed by adding substances such as amylopectin, calcium sulfate and the like, and the starch for the materials is suitable for multiple purposes, but the starch for the materials is the amylopectin, has low gelatinization temperature and poor heat resistance, is easy to turn yellow during processing, and influences the appearance.
The starch used by the materials is amylopectin, has poor heat resistance, is easy to turn yellow during processing, and has low Vicat softening point; in addition, the method has the defects of partial degradation, complete biodegradation and secondary white pollution.
Disclosure of Invention
The invention provides a physically modified starch suitable for a tray, a fully degradable composite material and a preparation method thereof, and a finished product of the physically modified starch and the fully degradable composite material can meet the requirements of various physical properties of a medicinal tray and has excellent environmental-friendly degradation characteristics.
The first purpose of the invention is realized by the following technical scheme:
a physically modified starch comprising, in mass percent:
68-81% of high amylose starch
3-7% of glycerin
3 to 7 percent of monoglyceride
2 to 7 percent of stearic acid
Sorbitol 2-6%
2-6% of calcium sulfate;
the high amylose starch contains more than or equal to 50% of amylose by mass, and the water content is 12-14%.
The second purpose of the invention is realized by the following technical scheme:
a high amylose fully degradable composite material suitable for pallets comprises the following components in percentage by mass:
the high amylose starch contains more than 50% of amylose and has a water content of 12-14%.
Preferably, the inorganic filler includes at least one of calcium carbonate, talc and mica powder.
Preferably, the polylactic acid includes at least one of L-polylactic acid, D-polylactic acid, and DL-polylactic acid.
Preferably, the degradable polyester is at least one of PBAT (terpolymer of butanediol, adipic acid and terephthalic acid), PBS (polybutylene succinate) and PHA (polyhydroxyalkanoate).
Preferably, the inorganic flame retardant is at least one of aluminum hydroxide, magnesium hydroxide and antimony trioxide.
Preferably, the plasticizer is at least one of polyethylene wax, stearic acid and liquid paraffin;
preferably, the coupling agent is at least one of a silane coupling agent, an aluminate, and a titanate.
Preferably, the lubricant is at least one of polyethylene wax, polypropylene wax, and calcium stearate.
Preferably, the antioxidant is at least one of antioxidant 1010, antioxidant 1076, antioxidant 168 and antioxidant 2246.
The third purpose of the invention is realized by the following technical scheme:
the preparation method of the high amylose fully-degradable composite material suitable for the tray comprises the following steps:
(1) taking the components in the modified starch proportionally, heating and mixing uniformly; cooling to obtain physically modified starch; the heating temperature is 120-150 ℃, and the mixing time is 30-40 min;
(2) mixing the physically modified starch, the inorganic filler, the inorganic flame retardant, the plasticizer, the coupling agent, the lubricant, the polylactic acid, the degradable polyester and the antioxidant according to the proportion to obtain a mixture; the temperature during mixing is 80-120 ℃; mixing for 10-15 min;
(3) the mixture was fed into an extruder and extruded at a temperature of 155 ℃ and 185 ℃.
The function of each component in the invention is as follows:
high amylose starch, such as one or both of high amylose corn starch and high amylose potato starch, contains more than or equal to 50% by mass of amylose with a water content of 12-14% is the main base material in the system. The water content is a ratio of water contained in the object to the total mass of the object.
Glycerol, a plasticizer in the system, increases the plasticity of starch.
Monoglyceride is a modifier and a plasticizer in a system, in particular to high-purity monoglyceride (the content is more than 90 percent) of fatty acid after distillation and purification, which can not only carry out surface activation treatment on starch, but also play a part of plasticizing effect of glycerin and improve the hydrophobicity of the starch. Because monoglyceride (fatty acid monoglyceride) contains a lipophilic long-chain alkyl and two hydrophilic hydroxyls, it is a nonionic surfactant, has the properties of emulsification, lubrication, plasticization, lipophilicity, defoaming property and the like, and has the advantages of antibiosis, stable performance, insolubility in water, and more importantly, it is safe, nontoxic and edible. Monoglyceride and glycerol, are among the two most commonly used and best currently used adjuvants for the physical modification of starch.
Stearic acid is a lubricant and a modifier in the system, which not only carries out physical activation modification on hydroxyl in the starch, but also improves the plasticity of the starch. Because the chemical stability of stearic acid is relatively good in all fatty acids, the state is fine spherical solid particles; the starch is insoluble in water, the melting point is about 68 ℃, and the starch can be fully and uniformly dispersed and activated to react when being physically mixed and modified with starch at high temperature (more than or equal to 80 ℃); and the carboxyl of the stearic acid and a plurality of hydroxyl of the starch are subjected to partial esterification reaction, so that the hydrophilicity of the starch is reduced, and the stearic acid is relatively cheap and has wide sources, thereby being one of the starch modifiers with the highest cost performance.
Sorbitol, a modifier in the system, and hydroxyl groups in starch are partially chemically reacted. Sorbitol can participate in anhydrization, esterification, etherification, oxidation, reduction, isomerization and other reactions, has the special functions of moisturizing, chelating metal ions and improving tissues (making cakes fine and preventing starch from aging), and is one of the most suitable additives for chemically modifying starch.
Calcium sulfate is a filling reinforcing agent and a water absorbent in the system, and improves the hydrophobicity and the mechanical strength of starch. In contrast to inorganic minerals such as calcium carbonate and talc, anhydrous calcium sulfate (CaSO4) can be used as a desiccant in addition to inorganic filler enhancers, building materials, food additives, and fertilizers. It has excellent water absorption at room temperature and can be used in combination with starchFree water in the powder forms gypsum (CaSO4 & 2H)2O), the starch can be dehydrated as soon as possible during physical modification; and at a high temperature of 160 ℃ and 180 ℃ (the gypsum loses 1.5H at 128℃)2O, 2H loss at 163 DEG C2O) rapidly dehydrates to anhydrous CaSO during processing4And simultaneously, the volatilized water is immediately pumped out by a vacuum device on the extrusion granulator.
The invention has the following beneficial effects:
1. the physically modified starch prepared by the invention has good hydrophobicity, plasticity and processing temperature resistance; can be widely applied to the further processing of various plastic products.
2. The fully-degradable composite material prepared by the invention contains a large amount of high amylose starch, has good mechanical properties, and has the tensile strength of 25-45MPa and the elongation at break of 30-120%. Bending strength of 40-70MPa and notch impact strength of 8-24kJ/m2. By adjusting the proportion of the initial raw materials, the performance of the product can be controlled in a larger range, the comprehensive mechanical property is stronger than that of the amylopectin fully-degradable composite material added with the same proportion, particularly, the temperature of the amylopectin fully-degradable composite material added with the same proportion is 10-20 ℃ higher than that of the amylopectin fully-degradable composite material added with the same proportion on the Vicat softening point (index of good and bad reaction heat resistance).
3. The tray prepared from the fully-degradable composite material has good low-temperature resistance, can be used for loading various medicament finished products for refrigeration or freezing for a long time, and does not have embrittlement or cracking phenomena; the composite material has good flame-retardant and smog-inhibiting effects, because when the composite material is burnt at high temperature, under the combined action of two or more inorganic flame retardants of aluminum hydroxide, magnesium hydroxide and antimony trioxide, a large amount of water vapor and non-combustible metal oxides can be decomposed, the temperature during burning can be directly reduced, the surrounding oxygen concentration can be greatly diluted, the contact surface of combustible substances and oxygen is partially isolated, and the generation of a large amount of smog and the concentration of smog are inhibited at the same time.
4. The fully-degradable composite material prepared by the invention is easy to biodegrade; can completely replace partial petrochemical materials, and is environment-friendly; the biodegradation rate of the fully-degradable composite material prepared by the invention is more than or equal to 95 percent within 180 days; meets the standard of biodegradable starch resin in national standard GB/T27868.
5. The fully-degradable composite material prepared by the invention has good forming and processing properties, and is most suitable for being made into various medicinal trays and packaging boxes by using sheet materials. Other types of plastic products may also be formed by extrusion, pulling on tabs, blow molding, foaming, and the like.
6. The preparation method of the fully-degradable composite material is simple, can be completed by two steps of mixing and extruding, has high reaction yield, and is suitable for industrial production.
Detailed Description
The following specific examples are provided to further illustrate the present invention so that those skilled in the art may better understand the invention and practice it, but the examples are not intended to limit the invention. Other various modifications, substitutions and alterations of the above-described structures of the present invention will occur to those skilled in the art without departing from the basic technical spirit of the invention as described herein.
Properties of physically modified starch
In order to investigate the influence of different ratios on the performance of physically modified starch, physically modified starch with different ratios was prepared and tested for its performance, as shown in table 1 below.
TABLE 1 formulation and Performance comparison of physically modified starches
The high amylose starch is high amylose corn starch, contains more than 50% (mass ratio) of amylose, and has a water content of 12-14% (mass ratio).
As is clear from table 1, the physically modified starches No. 1, No. 2, and No. 3 are the most excellent in performance, and therefore, the physically modified starches No. 1, No. 2, and No. 3 were selected as the physically modified starches used in the examples.
Example 1
The physical modified starch No. 1 comprises the following components in percentage by mass: 81% high amylose corn starch, 7% glycerol, 3% monoglyceride, 3% stearic acid, 2% sorbitol and 4% calcium sulphate.
1) Adding the above components into a high-speed mixer, stirring at 120-150 deg.C for about 40-40min, mixing, discharging, cooling, and naturally discharging water from the system through the upper cover of the high-speed mixer or forcibly pumping out water by a vacuum pump.
The speed of the high-speed mixer is 900 plus 100rpm, and the whole water content of the system is controlled to be less than or equal to 5 percent (mass ratio) during discharging.
2) Adding 10kg of physically modified starch prepared in the step 1), 5kg of talcum powder, 15kg of magnesium hydroxide, 50kg of polylactic acid (L-polylactic acid), 15kg of PHA, 1.8kg of stearic acid, 1kg of aluminate, 2kg of polyethylene wax, 0.1kg of antioxidant 168 and 0.1kg of antioxidant 1010 into a high-speed mixer, stirring for 15min at 90 ℃, uniformly mixing, cooling and discharging.
The speed of the high-speed mixer is 900 plus 100rpm, and the whole water content of the system is controlled to be less than or equal to 2 percent (mass ratio) during discharging.
3) Adding the material obtained in the step 2) into a double-screw extruder, performing reaction extrusion at the temperature of 155 ℃ and the temperature of 175 ℃ and under the pressure of less than or equal to 8Mpa, and stretching and granulating. The physicochemical properties of the fully degradable composite material prepared in this example are as follows: tensile strength of 43.8MPa and elongation at break of 43.6 percent; the bending strength is 69.1MPa, and the notch impact strength is 9.7kJ/m2Vicat softening point 88 ℃; according to the determination method of the final aerobic biological decomposition capacity of the material under the controlled composting condition, a method for determining the released carbon dioxide is adopted, and the biodegradation rate in 180 days of example 1 reaches 97 percent by using a determination method of GB/T19277; the flame retardant rating of this material was V-0.
The common amylopectin degrading material with the same proportion has the advantages that the high amylose starch in the physically modified starch is replaced by the common amylopectin, and other physically modified auxiliary agents and the proportion are unchanged (the common amylopectin is the common jade in the present situation)Rice starch, containing 70-80% of amylopectin by mass and 12-14% of water by mass), and other biodegradable materials and additives for blending have unchanged components and proportion; the physicochemical properties under the same measurement conditions were: the tensile strength is 38.5Mpa, and the elongation at break is 38.9%; the bending strength is 61.2 Mpa; notched impact strength of 8.4kJ/m2(ii) a Vicat softening point 76 ℃; according to the determination method of the final aerobic biological decomposition capacity of the material under the controlled composting condition, a method for determining the released carbon dioxide is adopted, and the biodegradation rate within 180 days reaches 92 percent according to the determination method of GB/T19277; the flame retardant rating of this material was V-0.
Example 2 example 10
Examples 2-10 were prepared in the same manner as in example 1, differing from example 1 in the partial component content and the processing conditions, as shown in table 2, and in the mechanical properties of the finished product as shown in table 2.
TABLE 2 data sheet of composition, processing conditions, mechanical properties
In table 2, the component contents are calculated by mass percentage. The data in parentheses are the physical properties of the same formulation of a conventional amylopectin degrading material. Knowledge about flame retardancy grade: the flame retardant grade of the degradable plastic (material) is gradually increased from HB, V-2 and V-1 to V-0, namely from the lowest grade HB to V-0, and the higher the flame retardant grade of the material is, the less easily the material is burnt, namely the stronger the flame retardant property is. The method comprises the following specific steps:
1, HB: the lowest flame retardant rating in the UL94 standard. Requiring a burn rate of less than 40 mm per minute for samples 3 to 13 mm thick; a sample less than 3 mm thick with a burning rate less than 70 mm per minute; or extinguished before the 100 mm mark.
2, V-2: after two 10 second burn tests on the samples, the flame extinguished within 60 seconds. There may be combustion products falling.
V-1: after two 10 second burn tests on the samples, the flame extinguished within 60 seconds. No combustible material can fall off.
V-0: after two 10 second burn tests on the samples, the flame extinguished within 30 seconds. No combustible material can fall off.
Claims (10)
1. A physically modified starch, comprising, in mass percent:
68-81% of high amylose starch
3-7% of glycerin
3 to 7 percent of monoglyceride
2 to 7 percent of stearic acid
Sorbitol 2-6%
2-6% of calcium sulfate;
the high amylose starch contains more than or equal to 50% of amylose by mass, and the water content is 12-14%.
2. A high amylose fully degradable composite material suitable for use in pallets comprising the physically modified starch of claim 1, comprising in mass percent:
10-50% of physically modified starch
5 to 25 percent of inorganic filler
10 to 50 percent of polylactic acid
10 to 50 percent of degradable polyester
5 to 15 percent of inorganic flame retardant
1 to 4 percent of plasticizer
0.5 to 1.5 percent of coupling agent
2 to 5 percent of lubricant
0.2 to 0.6 percent of antioxidant.
3. The high amylose fully degradable composite material suitable for use in a tray of claim 2 wherein the inorganic filler comprises at least one of calcium carbonate, talc and mica powder.
4. The high amylose fully degradable composite material suitable for use in a tray of claim 2 wherein the polylactic acid comprises at least one of L-polylactic acid, D-polylactic acid and DL-polylactic acid.
5. The fully degradable high amylose composite material suitable for pallets as claimed in claim 2, wherein the degradable polyester is at least one of PBAT, PBS and PHA.
6. The fully degradable high amylose starch composite material suitable for pallets according to claim 2, wherein the inorganic flame retardant is at least one of aluminum hydroxide, magnesium hydroxide and antimony trioxide.
7. The high amylose fully degradable composite material suitable for use in a tray of claim 2, wherein the plasticizer is at least one of polyethylene wax, stearic acid and liquid paraffin.
8. The fully degradable high amylose composite material suitable for pallets as claimed in claim 2, wherein the coupling agent is at least one of a silane coupling agent, an aluminate and a titanate.
9. The high amylose fully degradable composite material suitable for use in a tray as claimed in claim 2, wherein the lubricant is at least one of polyethylene wax, polypropylene wax and calcium stearate;
the antioxidant is at least one of antioxidant 1010, antioxidant 1076, antioxidant 168 and antioxidant 2246.
10. The method for preparing the high amylose fully degradable composite material suitable for pallets as claimed in any one of claims 2 to 9, comprising the steps of:
(1) taking the components in the modified starch proportionally, heating and mixing uniformly; cooling to obtain physically modified starch; the heating temperature is 120-150 ℃, and the mixing time is 30-40 min;
(2) mixing the physically modified starch, the inorganic filler, the inorganic flame retardant, the plasticizer, the coupling agent, the lubricant, the polylactic acid, the degradable polyester and the antioxidant according to the proportion to obtain a mixture; the temperature during mixing is 80-120 ℃; mixing for 10-15 min;
(3) the mixture was fed into an extruder and extruded at a temperature of 155 ℃ and 185 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110163310.5A CN112961408B (en) | 2021-02-05 | 2021-02-05 | Physical modified starch suitable for trays, fully degradable composite material and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110163310.5A CN112961408B (en) | 2021-02-05 | 2021-02-05 | Physical modified starch suitable for trays, fully degradable composite material and preparation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112961408A true CN112961408A (en) | 2021-06-15 |
| CN112961408B CN112961408B (en) | 2023-10-20 |
Family
ID=76274723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110163310.5A Active CN112961408B (en) | 2021-02-05 | 2021-02-05 | Physical modified starch suitable for trays, fully degradable composite material and preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112961408B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114133718A (en) * | 2021-12-09 | 2022-03-04 | 宏全食品包装(清新)有限公司 | Full-degradable plastic bottle based on polyhydroxyalkanoate |
| CN115594891A (en) * | 2021-07-16 | 2023-01-13 | 保和实业（重庆）有限公司（Cn） | Sheet-grade fully biodegradable polyester and preparation method and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009073197A1 (en) * | 2007-12-05 | 2009-06-11 | Board Of Trustees Of Michigan State University | Biodegradable thermoplasticized starch-polyester reactive blends for thermoforming applications |
| CN102219935A (en) * | 2011-06-07 | 2011-10-19 | 刘立文 | Calcium sulfate starch biodegradable composite material and preparation method of calcium sulfate starch biodegradable composite material |
| CN102702655A (en) * | 2012-06-12 | 2012-10-03 | 合肥工业大学 | Polyvinyl alcohol/high amylose biodegradable material and melting preparation method thereof |
| CN103319813A (en) * | 2013-07-02 | 2013-09-25 | 河南惠强新能源材料科技有限公司 | Composite material for medicinal tray and preparation method thereof |
| CN103992517A (en) * | 2014-06-10 | 2014-08-20 | 华东理工大学 | Continuously-produced full-degradable starch-based plastic alloy and preparation method thereof |
-
2021
- 2021-02-05 CN CN202110163310.5A patent/CN112961408B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009073197A1 (en) * | 2007-12-05 | 2009-06-11 | Board Of Trustees Of Michigan State University | Biodegradable thermoplasticized starch-polyester reactive blends for thermoforming applications |
| CN102219935A (en) * | 2011-06-07 | 2011-10-19 | 刘立文 | Calcium sulfate starch biodegradable composite material and preparation method of calcium sulfate starch biodegradable composite material |
| CN102702655A (en) * | 2012-06-12 | 2012-10-03 | 合肥工业大学 | Polyvinyl alcohol/high amylose biodegradable material and melting preparation method thereof |
| CN103319813A (en) * | 2013-07-02 | 2013-09-25 | 河南惠强新能源材料科技有限公司 | Composite material for medicinal tray and preparation method thereof |
| CN103992517A (en) * | 2014-06-10 | 2014-08-20 | 华东理工大学 | Continuously-produced full-degradable starch-based plastic alloy and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 徐忠等编著: "《功能性变性淀粉》", vol. 1, 30 April 2010, 中国轻工业出版社, pages: 204 - 205 * |
| 柳仕刚等: ""直链淀粉含量对玉米淀粉/PVA混溶性及成膜性能的影响"", 《中国粮油学报》 * |
| 柳仕刚等: ""直链淀粉含量对玉米淀粉/PVA混溶性及成膜性能的影响"", 《中国粮油学报》, vol. 25, no. 12, 31 December 2010 (2010-12-31), pages 49 - 52 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115594891A (en) * | 2021-07-16 | 2023-01-13 | 保和实业（重庆）有限公司（Cn） | Sheet-grade fully biodegradable polyester and preparation method and application thereof |
| CN114133718A (en) * | 2021-12-09 | 2022-03-04 | 宏全食品包装(清新)有限公司 | Full-degradable plastic bottle based on polyhydroxyalkanoate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112961408B (en) | 2023-10-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101397375B (en) | PVC low foaming wood-plastic decorating material and production method thereof | |
| CN1935883B (en) | Water-soluble biodegradable material, and its preparing method and membrane product | |
| CN1939966B (en) | Hydrophobic degradable biological material, its production and film products | |
| CN112961408B (en) | Physical modified starch suitable for trays, fully degradable composite material and preparation method | |
| CN1935882B (en) | Water-soluble biodegradable material, and its preparing method and sheet-like shaped product | |
| KR101022786B1 (en) | Polylactic acid-containing biodegradable resin composition | |
| CN108884303B (en) | Thermoplastic composition | |
| CN113881109B (en) | Multistage modified thermoplastic starch master batch and application thereof in preparation of starch-based biodegradable film | |
| EP1070092A1 (en) | Polyalkylene arylates containing a high proportion of carboxyl end groups | |
| WO2017014239A1 (en) | Method for manufacturing polybutylene terephthalate resin composition and method for manufacturing polybutylene terephthalate resin molded article | |
| JP4645809B2 (en) | Thermoplastic resin composition | |
| KR101025946B1 (en) | Water-soluble Biodegradable Material | |
| JP2010111740A (en) | Biodegradable flame retardant polyester resin composition for foaming, foamed article obtained therefrom, and molded article thereof | |
| CN105367874B (en) | Special biomass composite of medical tray and preparation method thereof | |
| US4962164A (en) | Degradable polymers and articles made therefrom | |
| CN112940356B (en) | Physically modified starch suitable for film, fully degradable composite material and preparation method | |
| CN1931907B (en) | Biodegradable composition and its preparation process and sheet product | |
| CN1939965B (en) | Hydrophobic degradable biological material, its production and sheet forming products | |
| JP2019073585A (en) | Polyvinyl chloride resin molding and method for producing the same | |
| KR100257036B1 (en) | A process of preparing for excellent reaction-property thermo elastic starch, its resin composite, its complex materials | |
| CN113956582B (en) | Auxiliary agent for improving flame retardant property of high polymer coiled material | |
| CN116925478B (en) | Special flexible material for aviation oxygen mask and preparation method thereof | |
| JPS5853661B2 (en) | Molding resin composition | |
| CN117820784A (en) | Bio-based flame-retardant floor substrate, preparation method thereof and bio-based flame-retardant floor | |
| CN1939968B (en) | Hydrophobic degradable biological material, its production and injection forming products |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |