CN112111111A - 一种pvc耐热发泡制品专用料、制品及其制备方法 - Google Patents
一种pvc耐热发泡制品专用料、制品及其制备方法 Download PDFInfo
- Publication number
- CN112111111A CN112111111A CN201910540574.0A CN201910540574A CN112111111A CN 112111111 A CN112111111 A CN 112111111A CN 201910540574 A CN201910540574 A CN 201910540574A CN 112111111 A CN112111111 A CN 112111111A
- Authority
- CN
- China
- Prior art keywords
- resistant
- heat
- product
- parts
- pvc
- 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.)
- Pending
Links
- 239000000463 material Substances 0.000 title claims abstract description 41
- 238000004519 manufacturing process Methods 0.000 title abstract description 8
- 238000002360 preparation method Methods 0.000 title abstract description 8
- 238000005187 foaming Methods 0.000 claims abstract description 39
- -1 styrene-cinnamic acid-acrylonitrile Chemical group 0.000 claims abstract description 21
- 239000003381 stabilizer Substances 0.000 claims abstract description 14
- 239000003607 modifier Substances 0.000 claims abstract description 13
- 239000011347 resin Substances 0.000 claims abstract description 13
- 229920005989 resin Polymers 0.000 claims abstract description 13
- 239000000945 filler Substances 0.000 claims abstract description 12
- 239000004088 foaming agent Substances 0.000 claims abstract description 12
- 239000006057 Non-nutritive feed additive Substances 0.000 claims abstract description 10
- 239000000314 lubricant Substances 0.000 claims abstract description 10
- 239000000843 powder Substances 0.000 claims abstract description 10
- 229920001897 terpolymer Polymers 0.000 claims abstract description 9
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 20
- 239000000203 mixture Substances 0.000 claims description 16
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 12
- 239000004698 Polyethylene Substances 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 229920000573 polyethylene Polymers 0.000 claims description 9
- 235000012438 extruded product Nutrition 0.000 claims description 8
- 239000004156 Azodicarbonamide Substances 0.000 claims description 7
- XOZUGNYVDXMRKW-AATRIKPKSA-N azodicarbonamide Chemical compound NC(=O)\N=N\C(N)=O XOZUGNYVDXMRKW-AATRIKPKSA-N 0.000 claims description 7
- 235000019399 azodicarbonamide Nutrition 0.000 claims description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 6
- 239000006084 composite stabilizer Substances 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 6
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 6
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 6
- 238000004513 sizing Methods 0.000 claims description 5
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 4
- 235000021355 Stearic acid Nutrition 0.000 claims description 4
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 4
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 4
- 239000008117 stearic acid Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
- IHBCFWWEZXPPLG-UHFFFAOYSA-N [Ca].[Zn] Chemical compound [Ca].[Zn] IHBCFWWEZXPPLG-UHFFFAOYSA-N 0.000 claims description 3
- XQPMWNLXMOKKLU-UHFFFAOYSA-N [Cr].[Ba].[Zn] Chemical compound [Cr].[Ba].[Zn] XQPMWNLXMOKKLU-UHFFFAOYSA-N 0.000 claims description 3
- NFVZIERLAZUYBQ-UHFFFAOYSA-N [K].[Zn] Chemical compound [K].[Zn] NFVZIERLAZUYBQ-UHFFFAOYSA-N 0.000 claims description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 229920005604 random copolymer Polymers 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 3
- 239000002861 polymer material Substances 0.000 abstract description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 60
- 229920000915 polyvinyl chloride Polymers 0.000 description 60
- 238000009413 insulation Methods 0.000 description 6
- 239000000178 monomer Substances 0.000 description 6
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 5
- 238000000354 decomposition reaction Methods 0.000 description 5
- 239000000155 melt Substances 0.000 description 5
- 238000004321 preservation Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 229920001577 copolymer Polymers 0.000 description 4
- 239000006260 foam Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- WBYWAXJHAXSJNI-VOTSOKGWSA-M .beta-Phenylacrylic acid Natural products [O-]C(=O)\C=C\C1=CC=CC=C1 WBYWAXJHAXSJNI-VOTSOKGWSA-M 0.000 description 3
- WBYWAXJHAXSJNI-SREVYHEPSA-N Cinnamic acid Chemical compound OC(=O)\C=C/C1=CC=CC=C1 WBYWAXJHAXSJNI-SREVYHEPSA-N 0.000 description 3
- 229930016911 cinnamic acid Natural products 0.000 description 3
- 235000013985 cinnamic acid Nutrition 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- WBYWAXJHAXSJNI-UHFFFAOYSA-N methyl p-hydroxycinnamate Natural products OC(=O)C=CC1=CC=CC=C1 WBYWAXJHAXSJNI-UHFFFAOYSA-N 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 239000006087 Silane Coupling Agent Substances 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000006261 foam material Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 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 1
- 241000220479 Acacia Species 0.000 description 1
- 239000004605 External Lubricant Substances 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 241000256602 Isoptera Species 0.000 description 1
- 235000010643 Leucaena leucocephala Nutrition 0.000 description 1
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 229940127554 medical product Drugs 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/102—Azo-compounds
- C08J9/103—Azodicarbonamide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0014—Use of organic additives
- C08J9/0023—Use of organic additives containing oxygen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/009—Use of pretreated compounding ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0095—Mixtures of at least two compounding ingredients belonging to different one-dot groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/08—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing carbon dioxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/02—CO2-releasing, e.g. NaHCO3 and citric acid
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08J2327/06—Homopolymers or copolymers of vinyl chloride
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2425/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
- C08J2425/02—Homopolymers or copolymers of hydrocarbons
- C08J2425/04—Homopolymers or copolymers of styrene
- C08J2425/08—Copolymers of styrene
- C08J2425/12—Copolymers of styrene with unsaturated nitriles
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Emergency Medicine (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
本发明公开了一种PVC耐热发泡制品专用料,涉及高分子材料领域,按重量份计,包括以下组分:PVC树脂粉100份,耐热改性剂5‑20份,稳定剂4‑6份,润滑剂0.5‑1.5份,加工助剂1‑3份,发泡剂1‑4份,填料8‑25份,发泡调节剂6‑15份;所述的耐热改性剂为苯乙烯‑肉桂酸‑丙烯腈三元共聚物。本发明还公开了PVC耐热发泡制品的制备方法。本发明采用苯乙烯‑肉桂酸‑丙烯腈三元共聚物作为耐热改性剂,混合其他加工助剂,得到PVC耐热发泡制品的专用料,配合加工工艺,使得PVC耐热发泡制品的耐热性得到改善。本发明的制备方法,生产工艺简单,操作控制方便,应用范围广,具有广阔的工业化和市场前景。
Description
技术领域
本发明涉及高分子材料领域,具体涉及一种PVC耐热发泡制品专用料、制品及其制备方法。
背景技术
PVC发泡制品主要化学成分是聚氯乙烯(Polyvinyl chloride),也被称为聚氯乙烯泡沫制品。被广泛应用于工业、农业、交通、建筑、通讯、医疗卫生等各领域,如工业零配件、蓬布、水管、塑料门窗、电缆保护套、医用制品等。与不发泡聚氯乙烯材料相比,首先,聚氯乙烯发泡材料密度低、质轻,具有缓冲减震、隔音吸音性能,且热导率低、隔热性能好;其次,它减少了原料用量,进而降低了产品的成本,降低了热导率,提高了保温性、隔热性;也减少了热膨胀性。与木质材料相比,聚氯乙烯发泡材料可以具备防潮、防腐、防虫、阻燃、可无需油漆、无毒无味等特点,还会防白蚁。但是,PVC发泡制品耐热性差,连续使用温度只有65 ℃左右,许多PVC发泡制品在夏季高温环境中易发生变形和收缩,尺寸稳定性差,极大地限制了使用范围。因此需要对PVC硬质发泡制品进行改性以提高其耐热性,解决以上技术问题。
发明内容
为了解决上述存在的问题,本发明提供一种PVC耐热发泡制品专用料,利用本发明的PVC耐热发泡制品专用料生产的PVC耐热发泡制品能够克服背景技术中现有的PVC发泡制品耐热性差的缺陷。
本发明是通过以下技术方案实现:
一种PVC耐热发泡制品专用料,按重量份计,包括以下组分:
PVC树脂粉100份
耐热改性剂5-20份
稳定剂4-6份
润滑剂0.5-1.5份
加工助剂1-3份
发泡剂1-4份
填料8-25份
发泡调节剂6-15份;
所述的耐热剂为苯乙烯-肉桂酸-丙烯腈三元共聚物。
优选地,所述的PVC树脂粉的相对分子量的范围为4-6万。
优选地,所述的稳定剂是钙锌复合稳定剂、钾锌复合稳定剂、有机锡稳定剂、钡铬锌稳定剂中的至少一种。
优选地,所述的润滑剂为聚乙烯蜡与硬脂酸的混合物。所述的填料为1000-1500目的碳酸钙。为了提高填料的分散均匀性,本实施例将填料经过硅烷偶联剂处理,所述硅烷偶联剂选自KH-570、KH-560、KH-550、WD-20、WD-27、WD-56、WD-62中的一种。
优选地,所述的加工助剂为丙烯酸酯类改性剂。
优选地,所述的发泡剂为碳酸氢钠和偶氮二甲酰胺的混合物。
优选地,所述的发泡调节剂为苯乙烯与甲基丙烯酸甲酯无规共聚物。
本发明还提供一种PVC耐热发泡制品,由上述任一技术方案的PVC耐热发泡制品专用料制造而成。
本发明耐热改性的机理:苯乙烯、丙烯腈等单体具有很大的空间位阻以及强极性基团,与PVC树脂共混能够增加分子间的作用力,抑制链段的滑移从而提高共混物的耐热性,但是苯乙烯和丙烯腈共聚物与PVC树脂的相容性不好,共混产物呈多相结构,没有明显的耐热性提高。而肉桂酸(β-苯丙烯酸)单体上的羰基与PVC分子量上的氯相互作用,与PVC的相容性好。将苯乙烯、肉桂酸、丙烯腈三种单体进行共聚反应,得到苯乙烯-肉桂酸-丙烯腈的三元共聚物既具有刚性基团又具有与PVC良好的相容性,与PVC共混能够形成单相结构的聚合物合金,耐热性改善明显。
本发明还提供一种PVC耐热发泡制品的制备方法,包含以下步骤:
1)将上述原料放入热混锅中搅拌,在温度100-130℃时搅拌数分钟,然后转移到冷混锅中搅拌冷却,40-60 ℃左右时出料;
2)待步骤1)的混合物冷却备用;
3)将步骤2)的混合物进行挤出成型,挤出产物进入定型台冷却,再经过水箱冷却;
4)将步骤3)的产物切割成一定长度的制品,即得到所述PVC耐热发泡制品。
优选地,所述挤出成型的工艺参数为:机筒温度依次包括145-150℃,160-165℃,175-180℃和170-175℃的四个温度区间,模唇温度为75-80℃,定型台温度为25-30℃,挤出机的主机转速为7.0-8.Orpm,熔融挤出时的牵引速度为1.75-2.25m/min。
本实施例的发泡原理:粉末状的物料进入挤出机后,随着不断的前移,慢慢从固态转化为粘流态,发泡剂也开始分解,但由于挤出机及模具的特殊结构,使得机筒及模具内的熔体压力非常高,发泡剂分解放出的气体在高压力下溶入PVC熔体之中。当熔体被挤出模具后,由于熔体突然失去压力,溶解在熔体中的气泡迅速膨胀发泡,这时立刻进入定型套冷却定型,同时气孔被保留,即为PVC发泡材料。
与现有的技术相比,本发明的有益效果是:
采用苯乙烯-肉桂酸-丙烯腈三元共聚物作为耐热改性剂,混合其他加工助剂,得到PVC耐热发泡制品的专用料,配合加工工艺,使得利用PVC耐热发泡制品专用料制造的PVC耐热发泡制品的耐热性得到改善,并保持原有的强度。本发明提供的PVC耐热发泡制品的制备方法,生产工艺简单,操作控制方便,生产效率高,生产成本低,应用范围广,具有广阔的工业化和市场前景。
具体实施方式
以下通过实施例对本发明进行进一步的具体描述。在以下各实施例中,各组分的用量均为质量用量。有必要在此指出,下面实施例只是对本发明的进一步说明,不能理解为对本发明保护范围的限制,该领域的技术人员可以根据上述本发明内容对本发明进行一些非本质的改进和调整。
一种PVC耐热发泡制品专用料按重量份计,包括以下组分:
PVC树脂粉100份
耐热改性剂5-20份
稳定剂4-6份
润滑剂0.5-1.5份
加工助剂1-3份
发泡剂1-4份
填料8–25份
发泡调节剂6-15份;
所述的耐热剂为苯乙烯-肉桂酸-丙烯腈三元共聚物。
本实施例的苯乙烯-肉桂酸-丙烯腈三元共聚物,是以苯乙烯、肉桂酸、丙烯腈为原料,采用悬浮法制备苯乙烯-肉桂酸-丙烯腈三元共聚物。
进一步,所述的PVC树脂粉的相对分子量的范围为4-6万。优选为SG-7的PVC树脂粉。
进一步,所述的稳定剂是钙锌复合稳定剂、钾锌复合稳定剂、有机锡稳定剂、钡铬锌稳定剂中的至少一种。
进一步,所述的润滑剂为聚乙烯蜡与硬脂酸的混合物。较佳地,聚乙烯蜡与硬脂酸的质量比为(3-7):2。
聚乙烯蜡(PE蜡),因其优良的耐寒性、耐热性、耐化学性和耐磨性而得到广泛的应用。作为润滑剂,其化学性质稳定、电性能良好。聚乙烯蜡与聚氯乙烯的相溶性好,能改善聚氯乙烯的流动性。对于PVC和其它的外部润滑剂相比,聚乙烯蜡具有更强的内部润滑作用。聚乙烯蜡可以增加产品的光泽和加工性能。
本实施例中聚乙烯蜡选自南京方业新材料有限公司的 H1001 。
进一步,所述的填料为1000-1500目的碳酸钙。为了提高填料的分散均匀性,本实施例将填料经过硅烷偶联剂处理,所述硅烷偶联剂选自KH-570、KH-560、KH-550、WD-20、WD-27、WD-56、WD-62中的一种。
进一步,所述的加工助剂为丙烯酸酯类改性剂。丙烯酸酯类改性剂为白色可流动固体粉末,可明显缩短塑化时间,加快熔融,促进塑化,对挤出制品可使其平衡扭矩提高,使其塑化均匀。从制品的外观来看,丙烯酸酯类改性剂可明显提高制品的表面光泽度,使制品看起来光滑细腻。
本实施例优选为甲基丙烯酸甲酯与丙烯酸酯的共聚物,进一步选用威海金合思化工有限公司的K-121、K-122、K-123、K-125、K-175、K-385、K-418、KM-310、KM-355型号产品。
进一步,所述的发泡剂为碳酸氢钠和偶氮二甲酰胺的混合物。其中偶氮二甲酰胺可采用衢州舜泰橡塑科技有限公司提供的SA1000型号的产品。
由于碳酸氢钠的分解温度较低,因此混合物中当到达碳酸氢钠分解温度时该发泡剂会分解碳酸氢钠释放气体,随着持续升温的过程中,温度到达偶氮二甲酰胺分解温度时,该发泡剂会分解偶氮二甲酰胺释放气体,从而实现持续释放气体,避免释放气体的突发性,并且通过较低温度阶段分解碳酸氢钠释放气体,较高温度分解偶氮二甲酰胺释放气体,达到延长分解温程的效果。
进一步,所述的发泡调节剂为苯乙烯与甲基丙烯酸甲酯无规共聚物。所述发泡调节剂的特性粘度在17.0-22.0之间。
本发明中,所述的特性粘度为采用乌氏粘度计在25±0.10℃条件下测定的粘度值。
本申请人通过大量实验发现,在一定使用份数内,增加发泡调节剂的粘度,可以使制品的熔体强度持续增加。当加入特性粘度在17.0-22.0之间的发泡调节剂后,发泡剂在制品加工过程中受热释放气体发泡,因聚氯乙烯熔体具有较高的熔体强度,泡孔在膨胀的过程中不容易被胀破,维持泡孔结构的致密和均匀,有效减少因泡孔破裂而形成的塌陷,使得密度可以持续的降低。本发明通过加入发泡调节剂,并将其用于PVC耐热发泡材料的制备,所得发泡材料密度显著降低。
本发明还提供一种PVC耐热发泡制品,由上述任一技术方案的PVC耐热发泡制品专用料制造而成。
本发明耐热改性的机理:苯乙烯、丙烯腈等单体具有很大的空间位阻以及强极性基团,与PVC树脂共混能够增加分子间的作用力,抑制链段的滑移从而提高共混物的耐热性,但是苯乙烯和丙烯腈共聚物与PVC树脂的相容性不好,共混产物呈多相结构,没有明显的耐热性提高。而肉桂酸(β-苯丙烯酸)单体上的羰基与PVC分子量上的氯相互作用,与PVC的相容性好。将苯乙烯、肉桂酸、丙烯腈三种单体进行共聚反应,得到苯乙烯-肉桂酸-丙烯腈的三元共聚物既具有刚性基团又具有与PVC良好的相容性,与PVC共混能够形成单相结构的聚合物合金,耐热性改善明显。
本发明还提供一种PVC耐热发泡制品的制备方法,包含以下步骤:
1)将上述原料放入热混锅中搅拌,在温度100-130 ℃时搅拌数分钟,然后转移到冷混锅中搅拌冷却,40-60 ℃左右时出料;
2)待步骤1)的混合物冷却备用,即得PVC耐热发泡制品专用料;
3)将步骤2)的混合物进行挤出成型,挤出产物进入定型台冷却,再经过水箱冷却;
4)将步骤3)的产物切割成一定长度的制品,即得到所述PVC耐热发泡制品。
进一步,所述挤出成型的工艺参数为:机筒温度依次包括145-150℃,160-165℃,175-180℃和170-175℃的四个温度区间,模唇温度为75-80℃,定型台温度为25-30℃,挤出机的主机转速为7.0-8.Orpm,熔融挤出时的牵引速度为1.75-2.25m/min。
本发明的所述的材料均为市售材料。
本发明的实施例的配方见表1。
表1 各实施例中PVC耐热发泡制品专用料的配方表
实施例1 | 实施例2 | 实施例3 | 对比例 | |
PVC树脂粉 | 100 | 100 | 100 | 100 |
耐热改性剂 | 5 | 10 | 15 | 0 |
稳定剂 | 5.4 | 5.4 | 4.8 | 5.4 |
润滑剂 | 0.8 | 0.7 | 0.6 | 0.9 |
加工助剂 | 1.8 | 1.5 | 1.1 | 2.1 |
发泡剂 | 3.2 | 3.6 | 3.9 | 3.1 |
填料 | 18 | 15 | 13 | 18 |
发泡调节剂 | 7 | 5 | 3 | 9 |
将实施例1-3和对比例的原料按照本发明的方法进行加工,得到相应产品,将对应产品进行密度、维卡软化点、缺口冲击强度和拉伸强度测试,测试结果见表2。
表2 各实施例PVC耐热发泡制品的性能测试结果
性能 | 实施例1 | 实施例2 | 实施例3 | 对比例 |
密度(g/cm<sup>3</sup>) | 0.61 | 0.68 | 0.62 | 0.65 |
维卡软化点(℃,V<sub>vicat</sub> 5 kN) | 80.59 | 82.86 | 86.30 | 72.60 |
缺口冲击强度(KJ/m<sup>2</sup>) | 3.46 | 3.38 | 3.16 | 3.56 |
拉伸强度(MPa) | 31.6 | 29.1 | 28.3 | 32.3 |
从实施例的性能表可以看出,相对于对比例,本发明的维卡软化点明显升高,冲击强度和拉伸强度变化不大,PVC耐热发泡制品的耐热性得到改善,并保持原有的强度。
本发明所制得的PVC耐热发泡制品主要在以下领域可以使用:
1)建筑物屋面保温、钢结构屋面、建筑物墙体保温、建筑物地面保温、广场地面、地面冻胀控制、中央空调通风管道等;
2)地面防湿保温层,广泛适用于各种建筑物的底层防潮,高寒地区公路、铁路、机场跑道的路基下铺设可控制地砖热胀冷缩状态,并具有绝佳的结构承重效果;
3)室内装潢、广告板、广泛适用于室内装潢、吊顶、隔音墙、夹心门填充材料,起到隔热、隔音、保温、减轻重量等效果;本发明产品由于天然的阻燃性能,更加适合室内装修,更安全;也可以用于制作各类广告宣传板等。
以上显示和描述了本发明的基本原理、主要特征和优点。本行业的技术人员应该了解,本发明不受上述实施例的限制,上述实施例和说明书中描述的只是说明本发明的原理,在不脱离本发明精神和范围的前提下,本发明还会有各种变化和改进,这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等效物界定。
Claims (10)
1.一种PVC耐热发泡制品专用料,其特征在于:按重量份计,包括以下组分:
PVC树脂粉100份
耐热改性剂5-20份
稳定剂4-6份
润滑剂0.5-1.5份
加工助剂1-3份
发泡剂1-4份
填料8-25份
发泡调节剂6-15份;
所述的耐热剂为苯乙烯-肉桂酸-丙烯腈三元共聚物。
2.根据权利要求1所述的PVC耐热发泡制品专用料,其特征在于:所述的PVC树脂粉的相对分子量的范围为4-6万。
3.根据权利要求1所述的PVC耐热发泡制品专用料,其特征在于:所述的稳定剂是钙锌复合稳定剂、钾锌复合稳定剂、有机锡稳定剂、钡铬锌稳定剂中的至少一种。
4.根据权利要求1所述的PVC耐热发泡制品专用料,其特征在于:所述的润滑剂为聚乙烯蜡与硬脂酸的混合物,所述的填料为1000-1500目的碳酸钙。
5.根据权利要求1所述的PVC耐热发泡制品专用料,其特征在于:所述的加工助剂为丙烯酸酯类改性剂。
6.根据权利要求1所述的PVC耐热发泡制品专用料,其特征在于:所述的发泡剂为碳酸氢钠和偶氮二甲酰胺的混合物。
7.根据权利要求1所述的PVC耐热发泡制品专用料,其特征在于:所述的发泡调节剂为苯乙烯与甲基丙烯酸甲酯无规共聚物。
8.一种PVC耐热发泡制品,其特征在于:由根据权利要求1-7任一项所述的PVC耐热发泡制品专用料制造而成。
9.一种根据权利要求8所述的PVC耐热发泡制品的制备方法,其特征在于:包含以下步骤:
1)将上述原料放入热混锅中搅拌,在温度100-130 ℃时搅拌数分钟,然后转移到冷混锅中搅拌冷却,40-60 ℃左右时出料;
2)待步骤1)的混合物冷却备用;
3)将步骤2)的混合物进行挤出成型,挤出产物进入定型台冷却,再经过水箱冷却;
4)将步骤3)的产物切割成一定长度的制品,即得到所述PVC耐热发泡制品。
10.根据权利要求9所述的PVC耐热发泡制品的制备方法,其特征在于:所述挤出成型的工艺参数为:机筒温度依次包括145-150℃,160-165℃,175-180℃和170-175℃的四个温度区间,模唇温度为75-80℃,定型台温度为25-30℃,挤出机的主机转速为7.0-8.Orpm,熔融挤出时的牵引速度为1.75-2.25m/min。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910540574.0A CN112111111A (zh) | 2019-06-21 | 2019-06-21 | 一种pvc耐热发泡制品专用料、制品及其制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910540574.0A CN112111111A (zh) | 2019-06-21 | 2019-06-21 | 一种pvc耐热发泡制品专用料、制品及其制备方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN112111111A true CN112111111A (zh) | 2020-12-22 |
Family
ID=73796590
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910540574.0A Pending CN112111111A (zh) | 2019-06-21 | 2019-06-21 | 一种pvc耐热发泡制品专用料、制品及其制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN112111111A (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112724453A (zh) * | 2020-12-23 | 2021-04-30 | 快思瑞科技(上海)有限公司 | 母粒材料、发泡母粒制备方法及工程塑料制备方法 |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070123626A1 (en) * | 2005-10-25 | 2007-05-31 | Lg Chem, Ltd. | Heat resistant light diffusion blend composition |
CN101531793A (zh) * | 2009-04-20 | 2009-09-16 | 四川大学 | 耐热聚氯乙烯合金材料及其制备方法 |
CN102127273A (zh) * | 2010-12-22 | 2011-07-20 | 山东舜天力塑胶有限公司 | 聚氯乙烯耐热改性剂及其制备方法 |
CN102358794A (zh) * | 2011-08-31 | 2012-02-22 | 佛山佛塑科技集团股份有限公司 | 一种交联聚氯乙烯发泡材料及其制备方法 |
CN103183883A (zh) * | 2013-03-19 | 2013-07-03 | 西北工业大学 | 一种高性能硬质pvc泡沫塑料及其制备方法 |
CN103319810A (zh) * | 2013-06-17 | 2013-09-25 | 内蒙古亿利塑业有限责任公司 | 沙柳/聚氯乙烯木塑复合材料及其制作方法 |
CN104004302A (zh) * | 2014-06-13 | 2014-08-27 | 山东日科化学股份有限公司 | 一种低密度聚氯乙烯发泡材料及其制备方法 |
CN105949600A (zh) * | 2016-06-24 | 2016-09-21 | 合肥得润电子器件有限公司 | 一种汽车仪表板线束用抗紫外线耐热老化护套材料及其制备方法 |
US20180346700A1 (en) * | 2016-02-12 | 2018-12-06 | Furukawa Electric Co., Ltd. | Heat-resistant chlorine-containing crosslinked resin formed body and method for producing the same, silane master batch, master batch mixture and formed body thereof, and heat-resistant product |
CN109082027A (zh) * | 2018-06-29 | 2018-12-25 | 重庆文理学院 | 耐热低烟阻燃的pvc电缆 |
CN109535309A (zh) * | 2018-11-07 | 2019-03-29 | 山东日科化学股份有限公司 | 发泡调节剂及制备方法、聚氯乙烯复合料、聚氯乙烯发泡材料及其应用 |
CN109535310A (zh) * | 2018-11-07 | 2019-03-29 | 山东日科化学股份有限公司 | 发泡调节剂及制备方法、聚氯乙烯复合料、聚氯乙烯发泡材料及其应用 |
-
2019
- 2019-06-21 CN CN201910540574.0A patent/CN112111111A/zh active Pending
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070123626A1 (en) * | 2005-10-25 | 2007-05-31 | Lg Chem, Ltd. | Heat resistant light diffusion blend composition |
CN101531793A (zh) * | 2009-04-20 | 2009-09-16 | 四川大学 | 耐热聚氯乙烯合金材料及其制备方法 |
CN102127273A (zh) * | 2010-12-22 | 2011-07-20 | 山东舜天力塑胶有限公司 | 聚氯乙烯耐热改性剂及其制备方法 |
CN102358794A (zh) * | 2011-08-31 | 2012-02-22 | 佛山佛塑科技集团股份有限公司 | 一种交联聚氯乙烯发泡材料及其制备方法 |
CN103183883A (zh) * | 2013-03-19 | 2013-07-03 | 西北工业大学 | 一种高性能硬质pvc泡沫塑料及其制备方法 |
CN103319810A (zh) * | 2013-06-17 | 2013-09-25 | 内蒙古亿利塑业有限责任公司 | 沙柳/聚氯乙烯木塑复合材料及其制作方法 |
CN104004302A (zh) * | 2014-06-13 | 2014-08-27 | 山东日科化学股份有限公司 | 一种低密度聚氯乙烯发泡材料及其制备方法 |
US20180346700A1 (en) * | 2016-02-12 | 2018-12-06 | Furukawa Electric Co., Ltd. | Heat-resistant chlorine-containing crosslinked resin formed body and method for producing the same, silane master batch, master batch mixture and formed body thereof, and heat-resistant product |
CN105949600A (zh) * | 2016-06-24 | 2016-09-21 | 合肥得润电子器件有限公司 | 一种汽车仪表板线束用抗紫外线耐热老化护套材料及其制备方法 |
CN109082027A (zh) * | 2018-06-29 | 2018-12-25 | 重庆文理学院 | 耐热低烟阻燃的pvc电缆 |
CN109535309A (zh) * | 2018-11-07 | 2019-03-29 | 山东日科化学股份有限公司 | 发泡调节剂及制备方法、聚氯乙烯复合料、聚氯乙烯发泡材料及其应用 |
CN109535310A (zh) * | 2018-11-07 | 2019-03-29 | 山东日科化学股份有限公司 | 发泡调节剂及制备方法、聚氯乙烯复合料、聚氯乙烯发泡材料及其应用 |
Non-Patent Citations (2)
Title |
---|
YUYA TERAO,等: "Controlled Radical Copolymerization of Cinnamic Derivatives as Renewable Vinyl Monomers with Both Acrylic and Styrenic Substituents: Reactivity, Regioselectivity, Properties, and Functions", 《BIOMACROMOLECULES》 * |
张军,等: "耐热改性剂对硬质聚氯乙烯结构与性能的影响", 《第8届全国PVC塑料与树脂技术年会论文集》 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112724453A (zh) * | 2020-12-23 | 2021-04-30 | 快思瑞科技(上海)有限公司 | 母粒材料、发泡母粒制备方法及工程塑料制备方法 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN104327530B (zh) | 阻燃抗静电木塑复合材料的制备方法 | |
CN103554626B (zh) | 一种微发泡聚乙烯基木塑复合材料及其制备方法 | |
CN103509288B (zh) | Pvc发泡木塑复合材料及其制造方法 | |
CN101173074B (zh) | 一种具有耐划伤性能的聚丙烯组合物及其制备方法 | |
CN102617915A (zh) | 一种防霉变无卤阻燃抑烟木塑复合材料及其制备方法 | |
CN101824194B (zh) | 辐射交联pvc刚性发泡材料 | |
CN101851378B (zh) | 一种易加工高表观性能的挤出级asa树脂及其制备方法 | |
CN104893156A (zh) | 厚度为6-17mm的聚氯乙烯发泡广告板及其制备方法 | |
CN105367934A (zh) | 聚氯乙烯木塑发泡材料及其改性pvc高发泡木塑仿大理石板材的制备方法 | |
US3706679A (en) | Vinyl resin blowable into a rigid smooth skin microcellular profile | |
CN109535310B (zh) | 发泡调节剂及制备方法、聚氯乙烯复合料、聚氯乙烯发泡材料及其应用 | |
CN109535309B (zh) | 发泡调节剂及制备方法、聚氯乙烯复合料、聚氯乙烯发泡材料及其应用 | |
CN102757632B (zh) | 一种全降解聚甲基乙撑碳酸酯/木粉复合发泡材料及其制备方法 | |
CN104893155A (zh) | 聚氯乙烯地板基材及其制备方法 | |
KR101239843B1 (ko) | 내충격성 합성수지조성물 및 이에 의해 성형된 합성수지관 | |
CN106633528A (zh) | 高耐候性能仿木塑料环保装饰材料 | |
CN103044818A (zh) | 一种pvc/asa合金材料及其制备方法 | |
CN112111111A (zh) | 一种pvc耐热发泡制品专用料、制品及其制备方法 | |
CN104004302B (zh) | 一种低密度聚氯乙烯发泡材料及其制备方法 | |
CN104194122A (zh) | 一种tpe粗孔发泡材料及其制作方法 | |
CN104927390B (zh) | 一种木塑材料及其制备方法 | |
CN109280240B (zh) | 化学交联发泡聚乙烯材料的制备方法及一种螺杆 | |
CN108530786B (zh) | 一种耐老化hips发泡塑料及其制备方法 | |
CN113292760B (zh) | 交联间规聚丙烯泡沫及其制备方法和应用 | |
CN107226969A (zh) | 一种pvc复合装饰板 |
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 | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201222 |
|
RJ01 | Rejection of invention patent application after publication |