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清楚认识 plastics physical properties
Date: 2019-11-20 09:49
Views: 2269
Source: Internet
specific gravity (density) ★
plastics specific gravity is in temperature degree lower,秤 amount Sample weight and 同体积 water weight ratio value, mono is g/cm3, commonly used liquid force method as methods.
吸 water property ★
plastics water property is 指规定 dimensions Sample 浸入一定 temperature degree (25±2)℃ 蒸馏 water in,经 24 small rear absorption water amount; absorption water rear effect/influence its dimensions and 形状, water absorption use weight table/sheet 达时,常以％ table/sheet 示.
透 gas property
透 gas property is 指一定 thick degree plastics film in large gas pressure lower,一平方米 面积 in, in 24 small inner gas 体 体积(cm3) value,但透 gas amount and thin thick degree, 面积, time, temperature degree, gas pressure value and other has 关.
透 wet property
透 wet property is water gas for plastics film 透 情况, basic principle and and gas property same.
transparent degree
透 material light amount and to material upper light amount ratio is light degree; in light direction upper dispersion light for has light ratio,称雾 degree or mixed degree.雾 degree usually is semi transparent,并 for light has property 质.
tensile strength
tensile strength is in experiment/testing temperature degree, wet degree and tensile speed degree lower,沿 Sample direction add tensile 载荷,测定 Sample bad most large 载荷.
pressure shrink strong/high degree
pressure shrink strong/high degree is in Sample upper add pressure shrink 载荷至破裂(for property material 而言) or generate strong/high degree (for non property material 而言).
flexural strength
flexural strength is Sample in 两 支点 upper,施 add in 载荷, make Sample deformation or 直至破裂时 strong/high degree.
impact strong/high degree
impact strong/high degree is Sample impact 破断时, mono 位面积 upper consumption 焦耳, for/regarding certain impact strong/high degree high plastics,常 in Sample in has dimensions 之缺口, this can reduce it in 破断时 need 焦耳.
different parts can use different experiment/testing methods:落球式 impact experiment/testing, high speed tensile impact experiment/testing
friction coefficient
friction coefficient is scratch force and positive pressure ratio value. in Sample upper add positive pressure,测定 Sample rigid property 运动时 动 and ratio value.
abrasion consumption
abrasion consumption is plastics in scratch process in, micro from scratch surface separation 离,引起摩 scratch parts dimensions 不断 改变 machine property bad process,也 has is abrasion loss or abrasion 蚀.
hardness
plastics hardness is plastics resistant other hard material pressure property can, general purpose has hardness and hardness types.
肖氏 hardness is in pressure, time lower pressure device pressure pressure deep degree.
肖氏 pressure device can separation is type,即:A, D type.施 add negative weight is 1.0, 5.0公斤, pressure lower time is 15秒,A type suitable for soft plastics,D type suitable for semi hard plastics;当 use A type,测出 ultra- 95% amount 程时,应改 use D type,当D type ultra- 95% amount 程时,则 need use pressure 痕.
fatigue strong/high degree
is in 一 静态破 bad force has small amount 交变循 ring ring lower, make plastics bad strong/high degree; fatigue 载荷 源 has pressure, bending, 扭转, impact and other.
creep ★
creep is in temperature degree, wet degree conditions lower, plastics in solid outer force function lower,随 time performance 出 特征, this type of deformation 特征随 increase 载荷而 increase,随 decrease/reduce 载荷而 decrease/reduce, its deformation 亦逐渐恢复. creep has tensile creep, pressure shrink creep, bending creep and other.
持久 strong/high degree
持久 strong/high degree is plastics long time 经受静载荷 can force high reduce time 函数.例如:未经载荷 front plastics strong/high degree is 1000 small 时,而载荷 rear can can has its 50%至70% between.
线膨胀系数
线膨胀系数 is temperature degree rise high 1摄氏 degree 时,每一 cm plastics long cm 数. plastics 线膨胀系数 generally is 钢材 十倍 left right.
ratio hot
ratio hot is 指1克 plastics rise high difficult 1摄氏 degree 时, need hot amount mono 位.
thermal conductivity
thermal conductivity is certain mono 位面积 and thick degree plastics can through hot amount mono 位. plastics thermal conductivity very small,仅 is 钢材 百 separation left right, therefore is good hot material.
heat resistant property
plastics heat resistant property is 反映塑 parts temperature degree and deformation amount between features, heat resistant property for temperature degree has 关 塑 parts more is important.
玻璃化 temperature degree ★
plastics melt can flow temperature degree reduce solid temperature degree is 玻璃化 temperature degree,此时 separation 子链段 basic upper can 运动,链节 internal 旋转扣紧也 very difficult, has between less 许移动 tensile and has elastic property deformation, therefore plastics has very large property.
脆化 temperature degree
当 for/regarding low temperature lower plastics add pressure 时, in very small deformation lower it 就会破 bad,此 temperature degree is temperature degree.
separation understanding temperature degree ★
separation understanding temperature degree is plastics in hot large separation fracture temperature degree, meanwhile is plastics heat resistant property indicators 之一;当熔 material temperature degree ultra- separation understanding temperature degree 时, large separation material 会呈现发黄 color,且 products strong/high degree large large reduce
melt flow index ★
melt flow index (MFI)MI is thermoplastic property plastics in temperature degree and pressure lower, melt in 10 separation time inner through testing device small 孔 流出 熔 material weight, mono is 以克/10 separation table/sheet 示.
resistant property
plastics resistant property is use speed rate (燃烧 time inner Sample long degree) and 燃烧失 heavy rate (燃烧 front rear weight 之差 百 separation rate)之 ratio table/sheet 示,由起火 time 燃烧至自燃 time and time,亦 can as is resistant property can 参考数.
resistant electrical pressure
迅 speed will electrical pressure rise high to certain 一极限 value,停留一段 time, plastics Sample by 击穿,称此时 electrical pressure value is Sample can resistant electrical pressure.
resistant aging property
plastics resistant aging property is in use, and processing process in, due to to light, hot, oxygen, water, material, force and other outer factors function,引起 chemical structure bad make has excellent property can has decline phenomenon. research plastics aging property is is improve/increase it stability property,延 long its use lifespan.
chemical resistance
plastics chemical resistance is plastics in chemical in is to 腐蚀,评定 based on usually is plastics in in time rear weight, 体积, strong/high degree, color and other 变化程 degree.
molding shrinkage ★
molding shrinkage is thermoplastic property plastics in mold in molding 时, cooling rear demolding molding product,必 has shrinkage phenomenon,即 molding product small mold cavity dimensions.
molding shrinkage ★
molding shrinkage is thermoplastic property plastics in mold in molding 时, cooling rear demolding molding product,必 has shrinkage phenomenon,即 molding product small mold cavity dimensions.
plastics specific gravity is in temperature degree lower,秤 amount Sample weight and 同体积 water weight ratio value, mono is g/cm3, commonly used liquid force method as methods.
吸 water property ★
plastics water property is 指规定 dimensions Sample 浸入一定 temperature degree (25±2)℃ 蒸馏 water in,经 24 small rear absorption water amount; absorption water rear effect/influence its dimensions and 形状, water absorption use weight table/sheet 达时,常以％ table/sheet 示.
透 gas property
透 gas property is 指一定 thick degree plastics film in large gas pressure lower,一平方米 面积 in, in 24 small inner gas 体 体积(cm3) value,但透 gas amount and thin thick degree, 面积, time, temperature degree, gas pressure value and other has 关.
透 wet property
透 wet property is water gas for plastics film 透 情况, basic principle and and gas property same.
transparent degree
透 material light amount and to material upper light amount ratio is light degree; in light direction upper dispersion light for has light ratio,称雾 degree or mixed degree.雾 degree usually is semi transparent,并 for light has property 质.
tensile strength
tensile strength is in experiment/testing temperature degree, wet degree and tensile speed degree lower,沿 Sample direction add tensile 载荷,测定 Sample bad most large 载荷.
pressure shrink strong/high degree
pressure shrink strong/high degree is in Sample upper add pressure shrink 载荷至破裂(for property material 而言) or generate strong/high degree (for non property material 而言).
flexural strength
flexural strength is Sample in 两 支点 upper,施 add in 载荷, make Sample deformation or 直至破裂时 strong/high degree.
impact strong/high degree
impact strong/high degree is Sample impact 破断时, mono 位面积 upper consumption 焦耳, for/regarding certain impact strong/high degree high plastics,常 in Sample in has dimensions 之缺口, this can reduce it in 破断时 need 焦耳.
different parts can use different experiment/testing methods:落球式 impact experiment/testing, high speed tensile impact experiment/testing
friction coefficient
friction coefficient is scratch force and positive pressure ratio value. in Sample upper add positive pressure,测定 Sample rigid property 运动时 动 and ratio value.
abrasion consumption
abrasion consumption is plastics in scratch process in, micro from scratch surface separation 离,引起摩 scratch parts dimensions 不断 改变 machine property bad process,也 has is abrasion loss or abrasion 蚀.
hardness
plastics hardness is plastics resistant other hard material pressure property can, general purpose has hardness and hardness types.
肖氏 hardness is in pressure, time lower pressure device pressure pressure deep degree.
肖氏 pressure device can separation is type,即:A, D type.施 add negative weight is 1.0, 5.0公斤, pressure lower time is 15秒,A type suitable for soft plastics,D type suitable for semi hard plastics;当 use A type,测出 ultra- 95% amount 程时,应改 use D type,当D type ultra- 95% amount 程时,则 need use pressure 痕.
fatigue strong/high degree
is in 一 静态破 bad force has small amount 交变循 ring ring lower, make plastics bad strong/high degree; fatigue 载荷 源 has pressure, bending, 扭转, impact and other.
creep ★
creep is in temperature degree, wet degree conditions lower, plastics in solid outer force function lower,随 time performance 出 特征, this type of deformation 特征随 increase 载荷而 increase,随 decrease/reduce 载荷而 decrease/reduce, its deformation 亦逐渐恢复. creep has tensile creep, pressure shrink creep, bending creep and other.
持久 strong/high degree
持久 strong/high degree is plastics long time 经受静载荷 can force high reduce time 函数.例如:未经载荷 front plastics strong/high degree is 1000 small 时,而载荷 rear can can has its 50%至70% between.
线膨胀系数
线膨胀系数 is temperature degree rise high 1摄氏 degree 时,每一 cm plastics long cm 数. plastics 线膨胀系数 generally is 钢材 十倍 left right.
ratio hot
ratio hot is 指1克 plastics rise high difficult 1摄氏 degree 时, need hot amount mono 位.
thermal conductivity
thermal conductivity is certain mono 位面积 and thick degree plastics can through hot amount mono 位. plastics thermal conductivity very small,仅 is 钢材 百 separation left right, therefore is good hot material.
heat resistant property
plastics heat resistant property is 反映塑 parts temperature degree and deformation amount between features, heat resistant property for temperature degree has 关 塑 parts more is important.
玻璃化 temperature degree ★
plastics melt can flow temperature degree reduce solid temperature degree is 玻璃化 temperature degree,此时 separation 子链段 basic upper can 运动,链节 internal 旋转扣紧也 very difficult, has between less 许移动 tensile and has elastic property deformation, therefore plastics has very large property.
脆化 temperature degree
当 for/regarding low temperature lower plastics add pressure 时, in very small deformation lower it 就会破 bad,此 temperature degree is temperature degree.
separation understanding temperature degree ★
separation understanding temperature degree is plastics in hot large separation fracture temperature degree, meanwhile is plastics heat resistant property indicators 之一;当熔 material temperature degree ultra- separation understanding temperature degree 时, large separation material 会呈现发黄 color,且 products strong/high degree large large reduce
melt flow index ★
melt flow index (MFI)MI is thermoplastic property plastics in temperature degree and pressure lower, melt in 10 separation time inner through testing device small 孔 流出 熔 material weight, mono is 以克/10 separation table/sheet 示.
resistant property
plastics resistant property is use speed rate (燃烧 time inner Sample long degree) and 燃烧失 heavy rate (燃烧 front rear weight 之差 百 separation rate)之 ratio table/sheet 示,由起火 time 燃烧至自燃 time and time,亦 can as is resistant property can 参考数.
resistant electrical pressure
迅 speed will electrical pressure rise high to certain 一极限 value,停留一段 time, plastics Sample by 击穿,称此时 electrical pressure value is Sample can resistant electrical pressure.
resistant aging property
plastics resistant aging property is in use, and processing process in, due to to light, hot, oxygen, water, material, force and other outer factors function,引起 chemical structure bad make has excellent property can has decline phenomenon. research plastics aging property is is improve/increase it stability property,延 long its use lifespan.
chemical resistance
plastics chemical resistance is plastics in chemical in is to 腐蚀,评定 based on usually is plastics in in time rear weight, 体积, strong/high degree, color and other 变化程 degree.
molding shrinkage ★
molding shrinkage is thermoplastic property plastics in mold in molding 时, cooling rear demolding molding product,必 has shrinkage phenomenon,即 molding product small mold cavity dimensions.
molding shrinkage ★
molding shrinkage is thermoplastic property plastics in mold in molding 时, cooling rear demolding molding product,必 has shrinkage phenomenon,即 molding product small mold cavity dimensions.
